ORDER NO.

RRV2938
DV-270-S

DVD PLAYER

DV-270-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Serial No.
Model Type Power Requirement Region No. Confirm 3rd & 4th
alphabetical letters.

DV-270-S RRXCN AC110-127V/220-240V 4 &&TE######$$

DV-270-S RPWXCN AC110-127V/220-240V 4 &&TE######$$

DV-270-S RDXJ/RB AC110-127V/220-240V 2 &&MP######$$

DV-270-S RLXJ/NC AC110-127V/220-240V 3 &&MP######$$

DV-270-S LFXJ AC110V 3 &&MP######$$

For details, refer to "Important symbols for good services".

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan

PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2004
T-ZZE APR. 2004 printed in Japan
 1 2 3 4

SAFETY INFORMATION

A
This service manual is intended for qualified service technicians ; it is not meant for the casual do-
it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been
trainedto properly and safely repair complex products such as those covered by this
manual.Improperly performed repairs can adversely affect the safety and reliability of the product
and mayvoid the warranty. If you are not qualified to perform the repair of this product properly and
safely, youshould not risk trying to do so and refer the repair to a qualified service technician.

WARNING ! LASER DIODE CHARACTERISTICS

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN FOR DVD : MAXIMUM OUTPUT POWER : 5 mW
CLASS 1 BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING WAVELENGTH : 650 nm
B THE LIMIT FOR CLASS 1. FOR CD : MAXIMUM OUTPUT POWER : 5 mW
A SPECIALLY INSTRUCTED PERSON SHOULD DO SERVICING OPERATION OF THE WAVELENGTH : 780 nm
APPARATUS.

Additional Laser Caution

1. Laser Interlock Mechanism

Loading switch (S101 on the LOAB Assy) is used for interlock
mechanism of the laser.
When this switch turned ON in SW2 (CLOSE) side (OPEN signal is
0V and CLOSE signal is 3.5V), a laser becomes the status which can
completely oscillation.
Furthermore, the laser completely oscillates in the disc judgment and
C disc playback.
LABEL CHECK When player is power ON state and laser diode is not completely
oscillating, 780nm laser diode is always oscillating by half power.
Laser diode is driving with Q7 (650nm LD) and Q8 (780nm LD)
[RR, RPW, RD/RB and RL/NC types] on the DVDM Assy.
Therefore, when short-circuit between the emitter and collector of these
transistors or the base voltage is supplied for transistors turn on, the
laser oscillates. (failure mode)
In the test mode , there is the mode that the laser oscillates except
for the disc judgment and playback. LD ON mode in the test mode
oscillates with the laser forcibly.
The interlock mechanism mentioned above becomes invalid in this
mode.

2. When the cover is open, close viewing through the objective lens with
D the naked eye will cause exposure to the laser beam.

[LF type] : See page 46.

(Printed on the Rear Panel)

[RR type]

E
[RPW, RD/RB, RL/NC and LF types]

2 DV-270-S
1 2 3 4
 5 6 7 8

[ Important symbols for good services ]

In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:
1. Product safety A

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances. B

4. Shipping mode and shipping screws

To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

5. Lubricants, glues, and replacement parts

Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.
C

DV-270-S 3
5 6 7 8
 1 2 3 4

CONTENTS
SAFETY INFORMATION ..................................................................................................................................... 2
1. SPECIFICATIONS ............................................................................................................................................ 5
A
2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6
2.1 PACKING ................................................................................................................................................... 6
2.2 EXTERIOR SECTION................................................................................................................................ 8
2.3 FRONT PANEL SECTION ....................................................................................................................... 10
2.4 04 LOADER ASSY................................................................................................................................... 12
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .......................................................................................... 14
3.1 OVERALL BLOCK DIAGRAM.................................................................................................................. 14
3.2 POWER SUPPLY BLOCK DIAGRAM ...................................................................................................... 16
3.3 WAVEFORMS .......................................................................................................................................... 18
3.4 LOAB ASSY and OVERALL WIRING DIAGRAM..................................................................................... 20
3.5 DVDM ASSY 1/4 [RF IC BLOCK]............................................................................................................. 22
3.6 DVDM ASSY 2/4 [DVD IC BLOCK] .......................................................................................................... 24
B 3.7 DVDM ASSY 3/4 [AUDIO BLOCK]........................................................................................................... 26
3.8 DVDM ASSY 4/4 [VIDEO BLOCK]........................................................................................................... 28
3.9 FLKY and IRKY ASSYS........................................................................................................................... 30
3.10 POWER SUPPLY UNIT [VWR1377] ...................................................................................................... 32
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 33
4.1 LOAB ASSY ............................................................................................................................................. 33
4.2 DVDM ASSY ............................................................................................................................................ 34
4.3 FLKY and IRKY ASSYS........................................................................................................................... 38
4.4 POWER SUPPLY UNIT [VWR1377] ........................................................................................................ 40
5. PCB PARTS LIST ........................................................................................................................................... 42
6. ADJUSTMENT ............................................................................................................................................... 44
6.1 ADJUSTMENT ITEMS AND LOCATION ................................................................................................. 44
C 6.2 JIGS AND MEASURING INSTRUMENTS............................................................................................... 44
6.3 NECESSARY ADJUSTMENT POINTS ................................................................................................... 45
6.4 TEST MODE ............................................................................................................................................ 46
6.5 MECHANISM ADJUSTMENT .................................................................................................................. 47
7. GENERAL INFORMATION ............................................................................................................................. 49
7.1 DIAGNOSIS ............................................................................................................................................. 49
7.1.1 TEST MODE ...................................................................................................................................... 49
7.1.2 DISPLAY SPECIFICATION OF THE TEST MODE............................................................................ 50
7.1.3 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY ............................................................ 51
7.1.4 SPECIFICATION OF MODEL INFORMATION DISPLAY .................................................................. 52
7.1.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE ............................................................. 53
7.1.6 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY .................. 54
D
7.1.7 TROUBLE SHOOTING ...................................................................................................................... 55
7.1.8 ID NUMBER AND ID DATA SETTING ............................................................................................... 58
7.1.9 SEQUENCE AFTER POWER ON..................................................................................................... 61
7.1.10 DISASSEMBLY................................................................................................................................ 62
7.2 IC ............................................................................................................................................................. 70
7.3 DISC / CONTENT FORMAT PLAYBACK COMPATIBILITY ..................................................................... 86
7.4 CLEANING............................................................................................................................................... 88
8. PANEL FACILITIES ........................................................................................................................................ 89

4 DV-270-S
1 2 3 4
 5 6 7 8

1. SPECIFICATIONS

A
General Digital audio characteristics
System . . . . . . . . . . . . . . . . . . . . . . . . . DVD player Frequency response . . . . . . . . . . . 4 Hz to 44 kHz
Power requirements (DVD fs: 96 kHz)
LF type . . . . . . . . . . . . . . . . . . . . . AC 110 V, 60 Hz
Other types . . . . . AC 110127/220240 V, 50/60 Hz S/N ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 dB
Power consumption Dynamic range. . . . . . . . . . . . . . . . . . . . . . 101 dB
LF type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 W Total harmonic distortion . . . . . . . . . . . 0.0020 %
Other types . . . . . . . . . . . . . . . . . . . . . . . . . . 10 W Wow and flutter . . . . . . . . Limit of measurement
Power consumption (standby) (0.001% W. PEAK) or lower
LF type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.07 W
Other types . . . . . . . . . . . . . . . . . . . . . . . . . 0.12 W Digital output
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 kg Coaxial digital output jack. . . . . . . . . . . RCA jack
Dimensions Optical digital output. . . . . . . Optical digital jack
DV-270-s . . . . . 420 (W) x 53 (H) x 247 (D) mm B
DV-373-s . . . . . 420 (W) x 55 (H) x 243 (D) mm
Operating temperature . . . . . . . .+5C to +35C Accessories
Operating humidity . . . . . . . . . . . . . . . 5% to 85% Audio/video cable . . . . . . . . . . . . . . . . . . . . . . . . 1
(no condensation) Power cable
(RPW, RD/RB, RL/NC and LF types) . . . . . . . . . 1
Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Component video output AA/R6P dry cell batteries . . . . . . . . . . . . . . . . . 2
Y (luminance) - Output level . . . . . . 1 Vp-p (75 ) Power cable (RR type) . . . . . . . . . . . . . . . . . . . . . 2
PB (color) - Output level . . . . . . . . 0.7 Vp-p (75 ) Operating Instructions
PR (color) - Output level . . . . . . . . 0.7 Vp-p (75 ) (RR, RD/RB, RL/NC and LF types). . . . . . . . . . . 2
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RCA (RPW type). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Remote control overlay
S-video output (LF type only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 C
Y (luminance) - Output level . . . . . . 1 Vp-p (75 )
C (color) - Output level . . . . . . . 286 mVp-p (75 )
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-video
The specifications and design of this product are subject to
change without notice, due to improvement.
Video output
Output level . . . . . . . . . . . . . . . . . . . 1 Vp-p (75 )
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RCA

Audio output (1 stereo pair)

Output level . . . . . . . . . . . . . During audio output
200 mVrms (1 kHz, 20 dB)
Number of channels . . . . . . . . . . . . . . . . . . . . . 2
D
Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RCA

DV-270-S 5
5 6 7 8
 1 2 3 4

2. EXPLODED VIEWS AND PARTS LIST

NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
The mark found on some component parts indicates the importance of the safety factor of the part.
A Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to mark on product are used for disassembly.
For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions, apply as you think it appropriate.)
2.1 PACKING

For RRXCN and RPWXCN Types

6
4

B 3
5
12

2 (RRXCN Type Only)

RRXCN Type Only

11
17
C
For Other Types
LFXJ Type Only
6
19
18 3

12
12
7- 10 4
"Operating Instructions"

14 5
D 1
13

15

16

6 DV-270-S
1 2 3 4
 5 6 7 8
PACKING parts List
Mark No. Description Part No. Mark No. Description Part No.

> 1 Power Cable See Contrast table (2) 11 Accessory Box See Contrast table (2)
> 2 Power Cable See Contrast table (2) 12 Polyethylene Bag B5 VHL1051 A
3 Audio / Video Cable See Contrast table (2) 13 Polyethylene Bag See Contrast table (2)
4 Remote Control VXX2913 14 Pad L See Contrast table (2)
5 Battery Cover VNK4997 15 Pad R See Contrast table (2)

NSP 6 Dry Cell Battery (AA, R6P) See Contrast table (2) 16 Packing Case See Contrast table (2)
7 Operating Instructions VRB1330 17 IRAM Caution See Contrast table (2)
(English) NSP 18 Front Panel Button See Contrast table (2)
8 Operating Instructions See Contrast table (2) Names Sticker
(Spanish / Portuguese) 19 Remote Control Overlay See Contrast table (2)
9 Operating Instructions See Contrast table (2)
(Arabic) B
10 Operating Instructions See Contrast table (2)
(Trad-Chinese)

(2) CONTRAST TABLE

DV-270-S/RRXCN, RPWXCN, RDXJ/RB, RLXJ/NC and LFXJ are constructed the same except for the following :
DV-270-S/ DV-270-S/ DV-270-S/ DV-270-S/ DV-270-S/
Mark No. Symbol and Description
RRXCN RPWXCN RDXJ/RB RLXJ/NC LFXJ
> 1 Power Cable ADG1158 ADG7099 ADG1158 ADG1154 ADG7097
> 2 Power Cable XDG3009 Not used Not used Not used Not used
C
3 Audio / Video Cable VDE1078 VDE1078 XDE3049 XDE3049 XDE3049
NSP 6 Dry Cell Battery (AA, R6P) VEM1010 VEM1010 VEM1031 VEM1031 VEM1031
8 Operating Instructions VRD1191 Not used Not used Not used Not used
(Spanish / Portuguese)

9 Operating Instructions Not used Not used VRC1192 Not used Not used
(Arabic)
10 Operating Instructions Not used Not used Not used VRC1191 VRC1191
(Trad-Chinese)
11 Accessory Box VHC1114 VHC1114 Not used Not used Not used
13 Polyethylene Bag VHL1076 VHL1076 VHL1077 VHL1077 VHL1077
14 Pad L VHA1352 VHA1352 VHA1366 VHA1366 VHA1366
D
15 Pad R VHA1353 VHA1353 VHA1367 VHA1367 VHA1367
16 Packing Case VHG2481 VHG2480 VHG2479 VHG2477 VHG2482
17 IRAM Caution VRR1050 Not used Not used Not used Not used
NSP 18 Front Panel Button Names Sticker Not used Not used Not used Not used VRW2105
19 Remote Control Overlay Not used Not used Not used Not used VEC2406

DV-270-S 7
5 6 7 8
 1 2 3 4

2.2 EXTERIOR SECTION

16
A

17
10
Refer to
"2.4 04 LOADER ASSY". 17
4 17
18

18

B
17

E
D
C
B

17
C

F
5
F
D
18 C 17
17 B

18 2

D
E 19
17
B
A 1
17
13

18

19
9
E 17

A
NON-CONTACT

CONTACT SIDE

8
14 11
15
SIDE

F Refer to
"2.3 FRONT PANEL SECTION".

8 DV-270-S
1 2 3 4
 5 6 7 8
EXTERIOR SECTION parts List
Mark No. Description Part No. Mark No. Description Part No.

1 DVDM Assy VWS1575 NSP 11 Base Chassis See Contrast table (2)
> 2 POWER SUPPLY Unit VWR1377 12 A
3 13 Rear Sheet See Contrast table (2)
NSP 4 04 LOADER Assy VWT1210 14 DVD-V Plate VAM1135
5 Connector Assy (13P) See Contrast table (2) 15 Tray Panel VNK5395

6 Connector Assy (5P) See Contrast table (2) 16 Caution Label See Contrast table (2)
7 17 Screw BBZ30P060FNI
8 Rubber Foot VEB1349 18 Screw See Contrast table (2)
9 Binder See Contrast table (2) 19 Screw PPZ30P080FNI
10 Bonnet (or Bonnet S) See Contrast table (2)

B
(2) CONTRAST TABLE
DV-270-S/RRXCN, RPWXCN, RDXJ/RB, RLXJ/NC and LFXJ are constructed the same except for the following :
DV-270-S/ DV-270-S/ DV-270-S/ DV-270-S/ DV-270-S/
Mark No. Symbol and Description
RRXCN RPWXCN RDXJ/RB RLXJ/NC LFXJ
5 Connector Assy (13P) VKP2320 VKP2320 PF13PP-C30 PF13PP-C30 PF13PP-C30
6 Connector Assy (5P) VKP2324 VKP2324 VKP2304 VKP2304 VKP2304
9 Binder VEC2414 VEC2414 VEC2427 VEC2427 VEC2427
10 Bonnet (or Bonnet S) VNA2685 VNA2685 VXX2941 VXX2941 VXX2941
NSP 11 Base Chassis VNA2702 VNA2702 VNA2717 VNA2717 VNA2717

13 Rear Sheet VRW2051 VRW2050 VRW2049 VRW2047 VRW2052 C

16 Caution Label VRW1872 VRW1872 VRW1872 VRW1872 VRW1961
18 Screw BBZ30P080FNI BBZ30P080FNI BBZ30P080FCC BBZ30P080FCC BBZ30P080FCC

DV-270-S 9
5 6 7 8
 1 2 3 4

2.3 FRONT PANEL SECTION

NON-CONTACT

CONTACT SIDE
A 2 17 17 17
11
LFXJ Type Only

SIDE
Refer to Note on replacing the Front Panel Assy.

4 17
6 (1/5)
D 17
17

5 15 17

6 (5/5) 6 (2/5) 17
B
C
9
6 (3/5)
8
6 (4/5)

7 1
10 12

13
16
18 RDXJ/RB,
14 RLXJ/NC
C and
LFXJ Types
Only

10

7 Note on replacing the Front Panel Assy (for the LFXJ type only)
The Front Panel Assy-S (VXX2919) is designed for both the LFXJ type (Taiwanese model) and the U.S.A. model, and is provided with a
Sensormatic seal to activate shoplifting alarms. This Sensormatic seal (VAN1004) is not necessary for the LFXJ type, and is not originally
provided with the product.
D Therefore, before replacing the Front Panel Assy-S for the LFXJ type, remove the Sensormatic seal, as shown below.

Note: If the Front Panel Assy-S is replaced without its Sensormatic seal removed, the product may trigger a shoplifting alarm at a store,
etc.

Procedures:
1. Cut off the two pins that secure the main key (5/5), using nippers, etc.
2. Remove the main key (5/5) and remove the Sensormatic seal.

Cut off these pins.

Front Panel Assy-S [Rear View]

E

F Sensormatic Seal Main Key (5/5)

10 DV-270-S
1 2 3 4
 5 6 7 8
FRONT PANEL SECTION parts List
Mark No. Description Part No. Mark No. Description Part No.

1 FLKY Assy See Contrast table (2) 11 FP Angle VNE2340

2 IRKY Assy VWG2475 12 Menu Key VNK5397 A
3 Flexible Cable (15P) See Contrast table (2) 13 Enter Key VNK5398
4 Front Panel Assy-S See Contrast table (2) 14 Cursol Cap VNK5399
NSP 5 Front Panel See Contrast table (2) 15 IR Window VNK5400

6 Main Key VNK5394 16 Enter Cap VNK5452

NSP 7 FL Lens VNK5396 17 Screw PPZ30P080FNI
8 Pioneer Name Plate VAM1129 18 Enter Key Assy See Contrast table (2)
NSP 9 Sensormatic Seal See Contrast table (2)
10 Rubber Foot VEB1349

B
(2) CONTRAST TABLE
DV-270-S/RRXCN, RPWXCN, RDXJ/RB, RLXJ/NC and LFXJ are constructed the same except for the following :
DV-270-S/ DV-270-S/ DV-270-S/ DV-270-S/ DV-270-S/
Mark No. Symbol and Description
RRXCN RPWXCN RDXJ/RB RLXJ/NC LFXJ
1 FLKY Assy VWG2466 VWG2466 VWG2466 VWG2466 VWG2470
3 Flexible Cable (15P) VDA1991 VDA1991 VDA2009 VDA2009 VDA2009
4 Front Panel Assy-S VXX2937 VXX2937 VXX2937 VXX2937 VXX2919
NSP 5 Front Panel VNK5449 VNK5449 VNK5449 VNK5449 VNK5393
NSP 9 Sensormatic Seal Not used Not used Not used Not used VAN1004

18 Enter Key Assy Not used Not used VXA2666 VXA2666 VXA2666 C

DV-270-S 11
5 6 7 8
 1 2 3 4

2.4 04 LOADER ASSY

Note : 8 2
Refer to
A
" Application of Lubricant". 25
6

8
8
To DVDM CN101 (Pickup)

To DVDM CN104 (Stepping Motor)

Daifree
GEM1036 To DVDM CN102 (Spindle Motor)
8

B 18
12
Lubricating Oil 3 24 20
GYA1001

13
23 A 22
17
4 5
16

22 19
C

21

15
22
7 A
To
DVDM CN103
10
14
11 Lubricating Oil
GYA1001
D
1
9 A
22

04 LOADER ASSY parts List

Mark No. Description Part No. Mark No. Description Part No.
NSP 1 LOAB Assy VWG2346 16 Drive Gear VNL1923
2 Traverse Mecha. Assy-S DXX2536 17 SW Lever VNL1925
3 Loading Motor Assy VXX2912 18 Clamper Plate 04 VNE2342
4 Motor Pulley PNW1634 19 Bridge 04 VNE2343
E NSP 5 Motor VXM1107 20 Clamper 04 VNL1969

6 Flexible Cable (24P) VDA1990 21 Screw JGZ17P028FNI

7 Connector Assy 2P VKP2325 22 Screw VBA1093
8 Floating Rubber VEB1351 23 Tray VNL1920
9 Belt VEB1358 24 Clamp Magnet VMG1029
10 Stabilizer VNE2253 25 03 SD Pickup Assy-S OXX8005

11 Loading Base VNL1917

12 Float Base 04 VNL1968
13 Drive Cam VNL1919
F 14 Gear Pulley VNL1921
15 Loading Gear VNL1922

12 DV-270-S
1 2 3 4
 5 6 7 8

Application of Lubricant
A

Lubricating Oil
GYA1001
Around the shaft

No. 11
Loading Base

Lubricating Oil
GYA1001

Lubricating Oil Lubricating Oil

No. 13 GYA1001 GYA1001
Lubricating Oil Inner side of a ditch Inner side of a ditch C
GYA1001 Drive Cam

No. 13
Lubricating Oil Lubricating Oil Drive Cam
GYA1001 GYA1001

Front View Rear View

Daifree
Daifree
No. 23 GEM1036
No. 23 GEM1036
Tray Concave of unevenness Tray Concave of unevenness

E
Inner side of a ditch
Daifree
GEM1036

Top View Bottom View

Side of the rib
Concave of unevenness
Daifree Daifree
GEM1036 GEM1036
F

DV-270-S 13
5 6 7 8
 1 2 3 4

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 OVERALL BLOCK DIAGRAM
A
2/4

B DVDM ASSY IC60

BR24L02FV-W
EEPROM
6 5
SCL SDA
2/4
65 67
CN1013 ASPDIF
153
CN101 1/4 ASDAT0
(24P) (24P) 154
SPINDLE OEIC Q7
LD(650) LD1 ACLK
MOTOR 7 18 126 151
LD(780) LD2
9 16 125 SDATA ALRCK
59 195 149
B1 Q8 B ABCK
16 9 99 IC301 148
B2 C MT1336E-L1-K FEO
15 10 100 18 205
B 22
B3
3
D
97
RF IC
B4 A TEO
21 4 98 21 203
A F RFOP
17 8 115 6 216 CVBS
C E IC601 168
19 6 116
PICKUP 47 48
1 MT1379EE-L1-K
ASSY-S DVD IC S_C
TO+
164

TROUT
T DRV

TRIN
4 21 31 1/4
T RTN TO- S_Y
3 22 30 166
F DRV FO+ PWMOUT1 System Control
2 23 34 1 15
F RTN FO- MPEG Video Decoder
1 24 35 FMSO Video Encoder G/Y
2 19 170
2 (with Picture Control)
CN102 24
FG
21 Video DAC
(12P)
HW- IC101 DMSO
16 (progressive:54MHz) B/Cb
W- 7 16 M63018FP 26 18 Audio Decoder 172
W+ HW+ FTS DRIVER FOSO (DD, MPEG)
6 17 27 12
HV- JPEG Viewer
V- 5 18 Focus TRSO WMA Playback R/Cr
C HV+ Tracking
28 13 173
V+ 4 19
TROPEN
15 RW Playback
HU- Stepper 40 14 (VR mode with CPRM)
U- 3 20
HU+ Spindle
U+ 2 21 Loading Drive
U
U 9 14 FG Detection
V
V 10 13
W
W 11 12
17 IC603 IC602
VYW2207 K4S641632F-TC75-K
FLASH ROM 64M SDRAM

2/4
CN104 2/4
ST2- SL2-
STEPPING 1 6
MOTOR M ST2+ SL2+
2 5
ST1+ SL1+
3 9
ST1- SL1-
D 4 10

CN602 CN601 CN103

LOAD- LO+
2 1 1 36
+ LOAD+ LO-
M 1 2 2 37
S101 SW2 TRIN
LOADING 3 3
MOTOR GND
4 4
ASSY SW1 TROUT
5 5

A LOAB ASSY
E CN105
(15P)

CN2 CN401
(13P) (13P)

CN1
LIVE
1
AC IN
2
NEUTRAL

F
POWER SUPPLY
E UNIT

14 DV-270-S
1 2 3 4
 5 6 7 8

A
JA701 1 $: Refer to "3.3 WAVEFORMS".
OPTICAL
DIGITAL
AUDIO
Q791 JA801 OUT
COAXIAL
AUDIO LPF
IC701 PCM1742KE IC702 (1/2)
AUDIO DAC BA4560F
3 8 VOUTL 2 8
3/4 7 1
ASDAT0 3 L
2 AUDIO
ACLK
16 6 3/4 OUT
VOUTR (2CH)
ALRCK 8 7
3 5 R
ABCK
1 IC702 (2/2)
5 6 BA4560F
IC801 B
4 7 MM1623BF
VIDEO DRIVE AMP
4/4 V OUT 9 VIDEO
CVBS V IN
4 23 OUT
14 C
(COMPOSITE)
S_C C IN C OUT
2 26
13 S VIDEO
S_Y Y IN Y OUT
6 21 OUTPUT
Y
10
G/Y CY IN CY OUT
10 20 Y

11 COMPONENT
B/Cb Cb IN Cb OUT
12 18 Cb VIDEO
OUT
12
R/Cr Cr IN Cr OUT
14 16 Cr C

CN101
(15P)
E
IC104
SEL IR IR Remote Sensor
17 2 2
Unit
IC101 PE5374A KEY0 KEY
FL CONTROL 22 3 3
MICROCOMPUTER KEY1 - KEY3
19-21 CN103 CN105
(4P) (4P)

V101
FL TUBE
D IRKY ASSY

C FLKY ASSY F

DV-270-S 15
5 6 7 8
 1 2 3 4

3.2 POWER SUPPLY BLOCK DIAGRAM

A
2/4

B DVDM ASSY V+3_BE

8
IC60
BR24L02FV-W
EEPROM

V+3_RF 2/4

CN1013
CN101 2,5,14,22,
(24P) (24P) 1/4 37,54,64,67,
SPINDLE OEIC 69,109,114,
MOTOR 120
VCC V+5S
2 2

IC301
MT1336E-L1-K
B RF IC

IC601
PICKUP MT1379EE-L1-K
ASSY-S DVD IC
1/4
36,55,66,
V+3_BE 97,108,111,
130,150,
185,192
CN102
(12P) V+3_BEA 11,
V+5S IC101 212
V+5S 1 M63018FP
FTS DRIVER
17,42,72,
V+2R5 82,120,
Focus,
C Tracking, 140,182 187
Stepper,
Spindle, X601
Loading Drive 186
and
FG Detection
CN104
ST2-
STEPPING 1
MOTOR M ST2+
2
ST1+ IC603 IC602
3 VYW2207 K4S641632F-TC75-K
ST1- FLASH ROM 64M SDRAM
4
12 37 1,3,9,14,
2/4
3,22, 2/4 27,43,49
V+6
CN602 CN601 CN103 32,39
LOAD- V+3_BE
2 1 1 V+3_BE
+ LOAD+
M 1 2 2
D S101 SW2
LOADING 3 3 V+5S V+5S V+5V
MOTOR GND
4 4 V+12
ASSY SW1
5 5
V+2R5

A LOAB ASSY
V+3 V+6 V+12 IC401 V+5 V+2R5
PQ1M505M2SPQ
5V REG.
V+6B
4 5

IC402
E PQ1M255M2SPQ CN105
2.5V REG. (15P)

CN2 CN401 4 5
(13P) (13P)
-28V -28V
13 13 4
FL DC+ FL DC+
CN1 12 12 6
FL DC- FL DC-
LIVE 11 11 2
1 EV+4V V+3E +3.3V
8 8 5
AC IN SW+3.3V IC403 IC400 RESET
7 7 S-L2980A33MC-C6S PST3228 8
2 EV+6.8V(A)
NEUTRAL 5 5 3V REG. RESET
EV+6.8V(B)
4 4
SW+12V 1,3 5 2 1
2 2

F
POWER SUPPLY
E UNIT

16 DV-270-S
1 2 3 4
 5 6 7 8

A
JA701
OPTICAL
DIGITAL
AUDIO
JA801 OUT
COAXIAL
AUDIO LPF
IC701 PCM1742KE IC702 (1/2)
AUDIO DAC BA4560F V+12
2 8
3/4 1
V+3A 3 L
5 AUDIO
6 3/4 OUT
7 (2CH)
V+5V 5 R
6
IC702 (2/2)
BA4560F
IC801 B
MM1623BF
VIDEO DRIVE AMP
4/4 VIDEO
OUT
(COMPOSITE)

V+5V 1,3, S VIDEO

5,28
OUTPUT

COMPONENT
Cb VIDEO
OUT

Cr C

D
V+5V
V+12

V+3E
CN101
(15P) V+3E V+3E
1
V+3E
1 E
1 24 25 59
3
IC101 PE5374A X101
-28V -28V FL CONTROL 5MHz
12 60 MICROCOMPUTER 4
FL DC+
10
FL DC- 6
14 RESET
+3.3V
11
RESET
8
1,2 31,32

V101
FL TUBE
D IRKY ASSY

C FLKY ASSY F

DV-270-S 17
5 6 7 8
 1 2 3 4

3.3 WAVEFORMS
Note : The encircled numbers denote measuring point in the schematic diagram.

A Measurement condition : No. 1 to 2 and 9 to 14 : reference A1 (DVD), T2-chp 19, Color-bar

No. 3 to 8 : reference A1 (DVD), T2-chp 1

B DVDM ASSY

Foot of C626 [RFOP](IC301 - pin 6) IC601 - pin 21 [FG] Foot of R707 (IC701 - pin 16)
1 V: 200mV/div. H: 0.1sec/div.
2 V: 1V/div. H: 5msec/div.
3 [AUDIO DAC -MCLK]

GND

Foot of R651 (IC701 - pin 1)

4 [AUDIO DAC -BCK]
V: 2V/div. H: 200nsec/div.

Foot of R656 (IC701 - pin 3) Foot of R656 (IC701 - pin 3) Foot of C832 (IC801 - pin 23)
D
5 [AUDIO DAC -LRCK]
6 [AUDIO DAC -LRCK]
9 [Composite Video out]
V: 2V/div. H: 5sec/div. V: 2V/div. H: 500nsec/div.
Foot of R651 (IC701 - pin 1)
7 [AUDIO DAC -BCK] 6

Foot of R652 (IC701 - pin 2)

8 [AUDIO DAC -DATA]
7
(Waveform of DATA is unsettled.)
8

V: 1V/div. H: 10sec/div.

Foot of C842 (IC801 - pin 20) Foot of C822 (IC801 - pin 21)
10 [Component Video out -Y]
13 [S Video out -Y]
V: 1V/div. H: 10sec/div. V: 1V/div. H: 10sec/div.

Foot of C852 (IC801 - pin 18) Foot of C812 (IC801 - pin 26) 13
11 [Component Video out -Pb]
10 14 [S Video out -C]
E V: 2V/div. H: 10sec/div. V: 1V/div. H: 10sec/div.
14
Foot of C862 (IC801 - pin 16) 11
12 [Component Video out -Pr]
V: 2V/div. H: 10sec/div.
12

18 DV-270-S
1 2 3 4
 5 6 7 8

B DVDM ASSY
A

15 Foot of R614 (IC601 - pin 14) [TROPEN]

[Tray stops] [Tray is opening] [Tray is closing]

V: 1V/div. H: 5sec/div. V: 1V/div. H: 5sec/div. V: 1V/div. H: 5sec/div.

16 Foot of R618 (IC601 - pin 18) [DMSO]

[DMSO_OPEN] [DMSO_PLAY] [DMS~3]

Tray:
opening

PLAY
OPEN KEY ON:
OPEN KEY ON PLAY KEY ON:
The condition which braking is worn in a turn of disc.
starting a turn of disc
Braking a turn of disc

V: 1V/div. H: 10sec/div. V: 1V/div. H: 10sec/div. V: 1V/div. H: 2sec/div.

CN102 - pin 9, 10, 11

17 (IC101 - pin 14, 13, 12)
[SPDL(WVU)]

V: 2V/div. H: 2msec/div.
E

DV-270-S 19
5 6 7 8
 1 2 3 4

3.4 LOAB ASSY and OVERALL WIRING DIAGRAM

NOTES: When ordering service parts, be sure to refer to EXPLODED VIEWS and PARTS LIST or PCB PARTS LIST.
The > mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
: The power supply is shown with the marked box.

CN2 CN401
-28V 13
13
FL DC+ 12
12
FL DC- 11
11
GND 10
10

E 8
9
POWER ON
EV+4V
SW+3.3V
9

7
8

NEUTRAL POWER SUPPLY 6

7
GND 6

2 UNIT 5 EV+6.8V(A) 5
DVDM ASSY
1 (VWR1377)
4

2
3
EV+6.8V(B)
GND
SW+12V
3
4

2
B (VWS1575)
D CN1 GND 1
1
LIVE

B 1/4 : RF IC BLOCK
B 2/4 : DVD IC BLOCK
B 3/4 : AUDIO BLOCK
E
B 4/4 : VIDEO BLOCK

JA701
F
Optical Digital Out

20 DV-270-S
1 2 3 4
 5 6 7 8

RF : RF SIGNAL ROUTE F : FOCUS SERVO LOOP LINE

T : TRACKING SERVO LOOP LINE A
S : STEPPING SERVO LOOP LINE

CN103 CN105
CN101 1
EV+3.3V
1
GND 15 IR
IRKY ASSY
FL DC-
GND
-28V
13
14
2

3
GND
2

3
D (VWG2475)
12 KEY
EV+3.3V 4 4
11
FL DC+ 10
ACK 9
RESET
CTS/KARAOKE
SCK
7
8

6
C
XRESET
S(M TO F)
5 FLKY ASSY B
POWER ON 3
4
(LFXJ type: VWG2470)
S(F TO M)
XREADY 1
2 (Other types: VWG2466)
CTS/KARAOKE

POWER ON
S(M TO F)

S(F TO M)
XREADY
EV+3.3V

XRESET
FL DC+
FL DC-

RESET
GND

GND
-28V

ACK

SCK

PICKUP ASSY-S
11

13

15
1

CN1013
(OXX8005)
14
10

12
4
2

GND 24
1
CN105 2 VCC 23 8 14 C
B3 RF
CN101 3
B4
22
RF 0.1uF
4 21
780/650 20
5
6 C 19 RF
OEICG 18 0.1uF
7
8 A 17 RF
9
B1 16 RF 7 1
10
B2 15 RF
VREF(2.1V) 14
11
12 VR650 13 (4.7K)VR
VRCOM 12
13
VR780 11 (4.7K)VR
14
0.1uF

GND
7.5K

15 10
16 LD(780) 9
PD 8
17 650LD
LD(650) 7
18
MPD 780LD
7.5K

OBJ
0.1uF

GND 6
19
20 VSHF 5 D
TRKG DRV 4
T FD FR
21
22 TRKG RTN 3 T
23
FOCS DRV 2
F ACTUATOR

24 FOCS RTN 1 F TR TD

CN102 1
V+5S
SPINDLE MOTOR
2 U+
U- U
3
4 V+
V- V
5
6 W+
W- W
7
8 HB
U
9
V
10
W E
11
12 INSIDE

STEPPING MOTOR
S
CN104 1
ST2-(B)
ST2+(B) S M
2
ST1+(A) S
3
ST1-(A) S
4

CN103 CN601 S101

SW1
LOAB ASSY
5

4 GND
5

4 A (VWG2346) LOADING
MOTOR ASSY
3 SW2 3 : VXX2912
2 LOAD+ 2
CN602 +
1 M

1 LOAD- 1 2
JA801
Coaxial Y Cb Lch F

V Cr Rch
S Video
A
DV-270-S 21
5 6 7 8
 1 2 3 4

3.5 DVDM ASSY 1/4 [RF IC BLOCK]

B 1/4 DVDM ASSY

(VWS1575)
R36
10K TROPEN

R38 TRSO
10K
FOSO
R40 10K
DMSO
F T R42
10K

R37
***
LOAD+
LOAD-

F+

T+
F-

T-
V1P4

***

C125

R41 10K
REAR

R43 ***
C152

R39 ***
STEPPING

V+3_RF

1
S
MOTOR

ST1-(A) 4 ST1-

YB
0.01 YB

YB
CN104

C130
C134
S

C136
B

R124
ST1+(A) 3 ST1+

***
0.01

0.01
VKN1235 GND
or VKN1180
ST2+(B) 2
S ST2+ ENDM FG
to STEPPING MOTOR 51pin
S STBY V+6
ST2- 50pin

C139

C132
ST2-(B) 1

1
FRONT
from IC301

C142
220P
CN601

REAR LOAD-

42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
LOAD- 1

OSC
MU1
LOIN+
VM3
MU2
LO-
LO+
FO-
FO+
GND
5VCC
TO+
TO-
GND
TOIN
FOIN
SPIN
REF
FG
REF2
VM1
LOAD+
CN103 LOAD+

SW2
2
TRIN
B5B-PH-K-S 3
to LOAB ASSY
GND 4
IC101 M63018FP-TBB V+6
A

FRONT SW1 5 TROUT

SL1IN
SL2IN
FTS DRIVER
RSL2

RSL1
SL2+

SL1+

HW+
GND

GND
VM2

HU+
SL2-

SL1-

HW-

HV+
RSP

HU-
V+6

HV-
W
GND

U
V
to IC301
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
V+5S

C6
C 1
R104 R103
R107 R106

4.7
4.7
4.7
4.7
4.7
R120 4.7
1

V+5S 1
1

R115
R116
C12

R117
C120

R118
R119
***
C102

***
U+ HU+
2
1.8

1.8
SPINDLE MOTOR

U- HU- (R115120:2125 size)

3 GNDM GNDM
FRONT V+ HV+
4
(R103,104,106,107:2125 size)
S

HV-
ST2+

ST1+

V- 5
ST2-

ST1-

HW+

HU+
CN102 HW-

HV+
W

HU-
HV-
V
U

W+ HW+
6
VKN1243
or VKN1188
to SPINDLE MOTOR
W- 7
HW- R35 10K
FMSO B 2/4
2200P YB

2200P YB

2200P YB

HB 8 17 R30 10K to IC601

C114
C113
C112

C116

C118
***

***
V1P4
U
REAR U 9
R28 10K
(page2/4)
V PWMOUT1
V 10 to IC301 R27 10K
W
W 11

INSIDE LIMIT
12 49pin

GND
V+5S
D F
24 F-
FOCS RTN V+3_RF

FOCS DRV 23
F F+

TRKG RTN 22
T T-

T T+
R22
R25

TRKG DRV 21
4.7
4.7

47/16
C9

VSHF 20 Q7
HN1A01F(YGR)-T LDO2
GND 19 or IMT1A-T
L8 (1/2)
LD(650) 18 LD1
***
Q7
PD 17 HN1A01F(YGR)-T
L9
PICKUP ASSY-S

or IMT1A-T
LD(780) 16 LD2
(1/2)
FRONT ***
GND 15 V20 V+3_LD
Q5
UM5K1N-TRB
VR780 14
6
CN101 VRCOM 13 MDI1
V+5S
1 R18 IOA
52pin
VKN1464- -TFB 100K
R21
R26

C233 0.1 Q5 2
4.7

4.7

to PICK UP VR650 12
C10
47/16

UM5K1N-TRB
R14
10K

4
E VREF(2.1V) 11 3 R13
GNDS
LDO1
REAR
B2 10
R240 RF C
2
100K
Q4 R15 IOA
*** 2SC4081(QR)-TLB
B1 9
RF B 10K
R239 GNDS Q8
*** RF F 52pin HN1A01F(YGR)-T
A 8 Q8
or IMT1A-T HN1A01F(YGR)-T
R16 *** GNDS (2/2)
7 OEICG or IMT1A-T
OEICG 53pin (2/2)
C 6
RF E

5 IOA
780/650 52pin
R234 ***
B4 4
RF A
R233 ***
RF D
B3 3 from IC301
C231
VCC 2 ***
C232
GND 1 0.1
C230
0.1
GNDS

B 1/4
22 DV-270-S
1 2 3 4
 5 6 7 8

RF : RF SIGNAL ROUTE
F : FOCUS SERVO LOOP LINE
T : TRACKING SERVO LOOP LINE
S : STEPPING SERVO LOOP LINE

$: Refer to "3.3 WAVEFORMS". B

to IC101
from CN105

ENDM
(page2/4)

STBY
B 2/4 URST to CN101 from CN102

IOA
OEICG

LIMIT
to IC601
from CN103

TROUT
(page2/4)

TRIN
SDEN
URST
PWMOUT2

SDATA

SCLK

B 2/4
330P
10K
10K
10K
10K

C17 ***
V+3_RF
68
RF

V+3_RF
R33
R32
R11

C14
R12
R17
1000P

C15
C16

C13

C19
***

***
0.1

C8
***
C
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
C20 39 C18
0.1 0.1
AVDDP
AGNDX
AGNDP
DPDMUTE
RST
SDATA
SDEN
GNDS
SCLK
XCK16M
VDDS
IOB
IOA
IO9
IO8
IO7
IO6
IO5
IO4
IO3
IO2
IO1
IO0
HDGATE
UDGATE
GND
65 38
66 37
67 AVDDF 36
AGNDX AGNDX
68
69 AVDDM
AGNDF
VCON
VFO13
VDD AGNDX
35
34
to IC601
70 COSPHI AGNDX DPFO 33 (page2/4)
HALLCOS DPFN C23
71 32 0.015
72
73
REFCOS
AGNDM
GNDP
HTRC
31
30
YB HTRC B 2/4
74 HALLSIN TRLP 29
75 REFSIN TRLPA 28 C25 V+3_RF
C29
76 SINPHI CRTPLP 27 0.033 82P
77 SW0 CRTP 26
RFRP
78 SW2 HRFRP 25
C26
79 SW1 LRFRP 24 390P BDO
80 MOP DEFECT 23 C27 0.1
81 MON VDDP 22 V20
TEO
AGNDX TEO
82
AGNDX IC301 CSO
21 R23 *** CSO D
83 20
C30
470P 84 CEON LVL 19
RFL
to CN101
85 CEOP MT1336E-L1-K FEO 18 R24 ***
FEO
RFGCI V20
C32 86 17
V1P4
0.1 87 RFGCU
RFFGC
RF IC VREFO
V2REFO
16
V2P8
88 15
89 OSP AVDDT 14
C37

C38

C34
C39
***

C35
***

C36
0.1

0.1

0.1

90 OSN TM4 13 0.1

C33
0.1 91 CDD AGNDT 12
92 CDC TM3 11
93 CDB TM2 10
94 CDA TM1 9
DVDRFIN AGNDO
95 8
DVDRFIP RFON
RF RF RFON
96 7
D C43 1 DVDD RFOP
97 AGNDX RFOP 6
A C46 1 C41
98 DVDC MA WVDD AVDDO 5 0.1
RF B C45 1
DVDB AGNDX
99 MB WOBSO 4
C C44 1 C47
RFSUBO
WGAND

DVDA
WAVDD
CDFON

100 3 0.1
CDFOP

WGND
SGND
AGND

AVDD

SVDD

AGC1

AGC2
AGC3

LDO1
LDO2
MDI2
MDI1

101 2
MC

TNI
MD

TPI
SD
SC
SA
SB

IR

102 1
C11
***
E
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
R29
15K

C48
0.015

C49
C50
***

0.1

GNDS
C51
0.1

LDO1
LDO2
MDI1
E
F
RF

B 1/4
DV-270-S 23
5 6 7 8
 1 2 3 4

3.6 DVDM ASSY 2/4 [DVD IC BLOCK]

A IC603
DV-270/KU/CA VWS1571
FLASH ROM V+3_BE
DV-2750/WY VWS1572 VYW2183
(MBM29LV800TA-70PFTN) DV-370/WY
DV-474/WY VWS1573
A16 1 A15 48 A17
A16
A15 2 A14 47 DV-474/J VWS1574 VYW2176
BYTE
A14 3 A13 46
VSS DV-270/R* VWS1575
A13 4 A12 45 A0 DV-373/R*
D15 VYW2207
A12 5 A11 44 AD7
D7 DV-373/LF VWS1576
A11 6 A10 43
D14
V+3_BE A10 7 A9 42 AD6 DV-3700/RA VWS1577 VYW2176
D6 DV-3701/RA
A9 8 A8 41

R633
D13
A20

***
9 A19 40 AD5
D5
10 NC 39
D12
PWR# 11 WE 38 AD4
D4
12
13
RESET
NC
VCC
37
36 R616
B 1/4

C63
D11 PWMOUT2

1
14 NC 35 AD3
D3 ***
from IC301 (page1/4)

***
15 RY/BY 34

C616
D10
A19 16 A18 33 AD2
D2
A18 17 A17 32 V1P4
D9
A8 18 A7 31 AD1
D1
A7 19 A6 30
D8
A6 20 A5 29 AD0
D0
A5 PRD#
B 21 A4
OE
28
2
A4
A3
A2
22
23
24
A3
A2
A1
VSS
CE
27
26
25
PCE#
A1
FG B 1/4

1000P
A0
to IC101 (page1/4)

C124
16 15
GND
GND R619 10K FMSO
R618 10K DMSO
R615 10K PWMOUT1
R614 *** TROPEN
R613 18K TRSO
FOSO
R612

4700P
C619
18K

C612
560P
V1P4
B 1/4

C613
560P
C614
***
C615
4700P
C618
0.015
AD0
AD1
AD2
AD3

AD4
AD5
AD6
AD7
A1
A0

A15
A14

A13

A9
A8
A20

A12
A11
A10
V+3_BE
A18

A4
A3
A2
A19

A17

A6
A5
A7
A16

IC60
C609 from IC301 (page1/4)
EEPROM 1000P
R667

V+3_BE V+2R5
4.7K

R600

R609
***

47/16
BR24L02FV-W-TBB 750K V+3_BEA

1
1
R665

C601

8 1

C605 0.01
0.01

C604 0.01
C603 0.01
4.7K

C699

***

C610
C611
C633
***

VCC NC
7 2
WP NC
SCL 6 3

C607
C
SDA 5
SCL
SDA
NC
GND
4 B 1/4
from IC301
C60

C635

C617
C642
***

1
(page1/4)

R601
8.2K
GND

1
APLLVSS 54
IOA20 53
52
IOA18 51
50
49
48
47
46
45
IOA3 44
43
DVDD2 42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
TRO 13
12
11
10
9
8
7
6
5
LPION 4
3
2
1
C655 C626
1 RF
1000P

PLLVSS
IOA19

A17
A16
IOA7
IOA6
IOA5
IOA4

IOA2

IOA1
IOA0
AD0
AD1
AD2
AD3
DVDD3
AD4
AD5
AD6
AD7
HIGHA7
HIGHA6
DVSS
HIGHA5
HIGHA4
HIGHA3
HIGHA2
HIGHA1
HIGHA0
FG
DVSS
FMO
DMO
DVDD2
PWMOUT2
PWMOUT1
TROPENPWM

FOO
PLLVDD3
JITFN
JITFO
LPFOP
LPFIN
LPFIP
LPFON

LPIOP

IREF
RFOP
ALE 55 216 RFON
PRD# 56 215 C663 *** C681 ***
RFDTSLVN C625 1000P
R657 10K 57 55 APLLVDD3 214
PWR# IOWR# RFIP 216
56 ALE RFDTSLVP
PCE# 58 RFIN 215 213
IOCS# 57 IOOE# ADCVDD3 C671 ***
R664 10K R659 59 212 C662 1 V2P8
DVSS PWM2VREF
R663 10K 10K 60 211 V1P4
UP1_2 PWMVREF
FP_SCK R662 61 210 HTRC
UP1_3 HRFZC
FP_SO RAB4C330J-T 62 209 R606 100K
UP1_4 RFRP_AC
FP_ACK 33*4 63 208 R607 *** RFRP
UP1_5 RFRP_DC
SCL 64 207 C606 RFL
UP1_6 RFLEVEL
FP_ACK1 65 206 1000P FEO
DVDD3 FEI
SDA C666 66 205 CSO
UP1_7 CSO
FP_SI 1 67 204 TEO
UP3_0 TEI
FP_XREADY 68 203 R602 18K
UP3_1 TEZISLV
INT0# C670 69 202 V1P4
INT0# RFSUBI
R668 1 70 201
RAB4C330J-T IR ADIN C602 0.1
71 200
33*4 DVDD2 ADCVSS
RXD 72 199 BDO
UP3_4 BDO
TXD 73 198 SCLK
D UWR# 74
UP3_5
UWR#
SLCK
SDEN
197 SDEN
URD# 75 196 SDATA
76
URD# RF SDATA
195
77
DVSS WOBSI
194
V+3_BE RF
DQ7 RD7 GNDS
UDGATE 193
DQ6 78
RD6 DVDD3
DQ5 C682 79 192 C692
RD5 IDGATE 1
DQ4 1 80 191 URST URST

DQ3
81
82
RD4
DVDD2 IC601 VFO13
DVSS
190
189
C688

RD3 PRST R687 ***

DQ2 83 188 1000P
DQ1 84
85
RD2
RD1
MT1379EE-L1-K XTALI
XTALO
187
186
DQ0 RD0 R686 R640
DVDD3
DWE#
DCAS# R688
86
87RWE# DVD IC SPBCK
185
184
C685
1
680 100K
C644

CAS# SPLRCK
C640
10P

RAB4C680J-T 88 183
12P
DRAS# RAS#
89 DVDD2 182
DCS# 68*4 C683
RCS# SPDATA
DBA0 90 181 1
BA0 SPMCLK X601
R691
91 180 VSS1168 GND
68 DVSS HSYN
DQ15 92 179
RD15 DVSS
DQ14 93 178
RD14 YUV7
DQ13 C697 94 177
RD13 VSYN
DQ12 1 95 176
RD12 BLANK#
96 175
DVDD3 ICE
DQ11 97
RD11 YUV6/R
174 R_OUT R/Cr
DQ10 98 173
RD10 YUV5/B B_OUT
99 172
DQ9 RD9 B/Cb
E DQ8 100
101
RD8 YUV2/Y 166
DACVSSA
YUV4/G
171
170
G_OUT G/Y
DVSS DACVDDB 165 DACVDDA
SDCLK
R603 33 102
CLK YUV1/C 164 YUV3/CVBS
169 C669 V
CV_OUT
CVBS

SDCKE R604 68 103 DACVSSC 163

168 1
CLE 107 RA8
MA11 104 108 DMVDD3
DACVSSB 167 Y_OUT to IC801 4pin
R503 R502
150(F)

RA11
105 166
DACVDDC
MC_DATA

MA9
(page4/4)
ASDATA4
ASDATA0
ASDATA1
ASDATA2
ASDATA3

YUV0/CIN

RA9
165
DMVSS

106 C665
DVDD2

DVDD3

DVDD2

DVDD3
DVDD3

ALRCK

MA8 C_OUT
DQM1
DQM0

DQM3
DQM2

SPDIF
ABCK
DVSS

DVSS

DVSS

DVSS

VREF
RD31
RD30
RD29
RD28

RD27
RD26
RD25
RD24

RD23
RD22

RD21
RD20
RD19
RD18

RD17
RD16

ACLK
RA10

107 164
RA6
RA5
RA4

BA1

RA0
RA1
RA2
RA3
RA7

1
***

B 4/4
FS

108 163 V+3_BEDAC

C608 C667
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162

1
***
GND
C630

C639

R651

C650

C659

C661
C623

C620

***
1.5K
1

1
1

S-Y/Y
3.3V
47

47
75
47
47

C660

2.5V
1
R644

S_C
R660
33

S-C/C
R649
R648

R654
R652

R653

GND
to IC801 2pin
D

R513 R512
150(F)
R661 2.2K(F)
R642 47
SCK R643 47

(page4/4)
DAC_XCS0

XAMUTE

ASDAT0

B 4/4
***
ASPDIF
ALRCK

B 3/4
ABCK

ACLK
SO

FP_ACK1
GND
68

to IC701, CN702, JA701 (page3/4)

MA10 R617

F
DQM1
DQM0
DBA1
MA7

MA6
MA5
MA4

MA0
MA1
MA2
MA3

B 2/4
24 DV-270-S
1 2 3 4
 5 6 7 8

V+6B V+5S A
IC401
DVDM ASSY
PQ1M505M2SPQ-TRB
4 5
PU

B 2/4 (VWS1575)

C410
V+5V
2 1

YB
C401
C431
3 VIDEO DRIVER SCART DOWNLOAD

0.1

1
AUDIO DAC OPT/COAX OUT

V+3 GND
IC402 V+2R5
R422 PQ1M255M2SPQ-TRB
*** DVD IC
4 5

C420
2 1

C402
C432

YB 1
3

R420

0.1
***
R432 ***
V+3_BEA
R423
GND
*** DVD IC

V+3_RF V+3_BE
SCART
RF IC DVD IC SDRAM
FLASH ROM FLASH ROM
V+3A V+3_BEDAC
AUDIO AMP
AUDIO DAC
DVD IC B
AUDIO MUTE
FTS DRIVER

V+12

V+3E
CN401 R413
*** IC403
S-L2980A33MC-C6S-TRB
V+3E IC400
PST3228-TLB
V+3E
B13B-PH-K-S
from POWER SUPPLY 1 5
from/to IC601

5
GNDA

YB
2 to FLKB
V+6
C430

C403
GND 1
(page2/4) CN105

R400
3 4
1

10K
1
SW+12V 2 VKN1246

3
2
1
C415 or VKN1191
GND 3 ***
69pin FP_XREADY 15 XREADY
GND C414 33P
EV+6.8V(B) 4 68pin FP_SI 14 S(FtoM)
EV+6.8V(A) POWER_ON 13 POWER ON
5

E GND 6
R414 R443
63pin FP_SO
FLDC-
FP_SCK
R411 100K
C421 33P
11
12 S(MtoF)
XRESET

CN2
SW+3.3V

EV+4V
7

8
***
Q402
2SC4081(QR)-TLB
100K
Q401
2SA1602A(EF)-TLB
62pin

from IC601 141pin

FP_ACK
C409
33P
9
10

8
SCK
XNOR/KARAOKE
RESET
C
POWER ON

GND 10
9
C408 R442
100K
R441
6.8K
1-A1,1-B1
R666 C407
7
6
ACK
FLDC+ CN101
5 3.3V
1 10K 33P
FL DC- 11 R444 680 4 -28V
GND
FL DC+ 12
Q403
FLDC+ 3
2
GND
FLDC- C
-28V V+3_BE 1 GND
-28V 13
2SA1602A(EF)-TLB

R421

R412
GNDM GND GND

4.7K

***
URST URST
B 3/4 V+3_BE

to IC601 188pin C416

***
XNOR/KARAOKE
R499
(page2/4) Q412
DTC114YUA-TLB from page3/4 ***

GND

V+3_BE
C621
***

IC602
C600

C622
1

K4S641632F-TC75-K

C628
64M SDRAM
1 1 54 C632
DQ0 2
VCC
DQ0
VSS
DQ15
53 1 DQ15 D
3 52
VCCQ VSSQ
DQ1 4 51 DQ14
DQ1 DQ14
DQ2 5 50 DQ13
DQ2 DQ13
C627 6 49
1 VSSQ VCCQ
DQ3 7 48 DQ12
DQ3 DQ12
DQ4 8 47 DQ11
R/Cr R/CR B 4/4 DQ5
9
10
DQ4
VCCQ
DQ5
DQ11
VSSQ
DQ10
46
45 DQ10

to IC801 16pin DQ6 11

DQ6 DQ9
44 DQ9
R533 R532
150(F)

C629 12 43
(page4/4) DQ7
1
13
14
VSSQ
DQ7
VCCQ
DQ8
42
41
DQ8

VCC VSS
***

DQM0 15 40 C624
LDQM NC
DWE# 16 39 1 DQM1
WE UDQM
DCAS# 17 38 SDCLK
GND CAS CLK
B/Cb
B/CB B 4/4 DRAS#
DCS#
DBA0
18
19
20
RAS
CS
CKE
NC
37
36
35
SDCKE

MA11
to IC801 14pin DBA1 21
BA0 A11
34 MA9
R553 R552
150(F)

BA1 A9
MA8
(page4/4) MA10
MA0
22
23
A10/AP
A0
A8
A7
33
32 MA7
MA1 24 31 MA6
***

A1 A6
MA2 25 30 MA5
A2 A5
MA3 26 29 MA4
A3 A4
G/Y
GND
G/Y B 4/4 27
VCC VSS
28
E
to IC801 12pin RF : RF SIGNAL ROUTE
150(F)
R543 R542

(page4/4)
GND V : V SIGNAL ROUTE
***

GND S-C/C : S-VIDEO OUT C/C SIGNAL ROUTE

S-Y/Y : S-VIDEO OUT Y/Y SIGNAL ROUTE

R/Cr : R/Cr SIGNAL ROUTE

S_Y B 4/4 G/Y : G/Y SIGNAL ROUTE
S-Y/Y
to IC801 6pin
150(F)
R523 R522

(page4/4) B/Cb : B/Cb SIGNAL ROUTE

***

: AUDIO SIGNAL ROUTE

GND

D : AUDIO(DIGITAL) SIGNAL ROUTE

F
All resistors and capacitors are 1608 size
unless otherwise specified.
1, 2, @, #: Refer to "3.3 WAVEFORMS".
***:parts not mounted

B 2/4
DV-270-S 25
5 6 7 8
 1 2 3 4

3.7 DVDM ASSY 3/4 [AUDIO BLOCK]

V+12 V+5V V+5A V+3A

B 3/4 DVDM ASSY
(VWS1575)
R701
***
IC703
*** D700
3 1
2 R702 ***
***

C701

C702

C704

C703
1000/6.3

***
0.1

0.1
GNDA

GNDA GND B 2/4

V+3A from IC601 (page2/4)
B
R770

R707
***

3 47
ACLK
151pin
R777

IC701
***

R700 L707 147pin XAMUTE

*** *** 2ch AUDIO DAC R751

1K
Q751
PCM1742KE-TBB
4 7 8 GND
ABCK 1 BCKIN MCLK 16 R750
148pin 10K
ASDAT0 2 DATA ML 15 DAC_XCS0 144pin
154pin
ALRCK 3 LRCKIN MC 14 SCK 143pin
149pin
4 GND MD 13 SO 142pin
5 6 5 Vdd ZEROL 12
6 Vcc ZEROR 11
from IC601 (page2/4) 7 VoutL Vcom 10
8 VoutR AGND 9
B 2/4 GNDA

C706

100/10
C705
0.1
C777
C ***
GND GNDA

C711

100/10

V+12
R720
D 22K
Q730
***
R731
***
R730

R724
100/10
D731

C730
***

C731
***

22K
***

GNDA

C721

100/10

B 3/4
26 DV-270-S
1 2 3 4
 5 6 7 8

V+5V

VTL1089- -T
L790
JA701
V+12 JFJ1001 DIGITAL
(2125 size) AUDIO OUT
Q753
(OPTICAL) B
R753
1.8K

2SA1576A(QR)-TLB

C791
or 2SA1602A(EF)-TLB

***
Q752
DTC114YUA-TLB

C790

1
R752

R754

GND
4.7K
***

R792
B 4/4

1.8K
GND
D R791
ASPDIF to JA801 (page4/4)
GNDA GNDA GNDA C792
2.2K 1/50
R795 R797 D COAXIAL

R793
3.9K
75 ***

R794

R796

C793
100K

***
220
L797
from IC601 153pin ***

B 2/4 (page2/4) GND

Q791
GND GND

2SC4081(QR)-TLB

V+12
R713 : RR, RPW type only
R7130 : LF, RD/RB, RL/NC type only
C732

(axial resistor)
C733
0.1

R713
18K(D)
47/16

R7130
18K(D) C713 GNDA
R712
B 4/4
100P
R711 (axial resistor) 10K
2 - 8
Q746
2SD2114K(VW)-TLB
to JA801 (page4/4)
10K(D) 1 AUDIO_L
R7110 3 + C715 R716 220 R717
4
C712
680P

47/16 220
IC702
10K(D)
BA4560F-TBB R746 D
R715

C717
C714

330P
R711 : RR, RPW type only
22K

470
0.1

R7110 : LF, RD/RB, RL/NC type only

R721 : RR, RPW type only GNDA

R725
C724

C727

330P
22K

R7210 : LF, RD/RB, RL/NC type only

0.1
C722
680P

R7210
R756
470
B 4/4
IC702 R727 to JA801 (page4/4)
4 BA4560F-TBB
10K(D) 5 + R726 220 220
AUDIO_R
R721 7
C725 Q756
6 - 8
47/16 2SD2114K(VW)-TLB
10K(D) R722
(axial resistor) 10K C723

R7230 18K(D) 100P

E
R723
18K(D)
(axial resistor)

R723 : RR, RPW type only

R7230 : LF, RD/RB, RL/NC type only

: AUDIO SIGNAL ROUTE

D : AUDIO(DIGITAL) SIGNAL ROUTE

3 8: Refer to "3.3 WAVEFORMS".

All resistors and capacitors are 1608 size F
unless otherwise specified.
***:parts not mounted

B 3/4
DV-270-S 27
5 6 7 8
 1 2 3 4

3.8 DVDM ASSY 4/4 [VIDEO BLOCK]

B 4/4 DVDM ASSY

(VWS1575)

V+5V
R810

10K

B 2/4
from IC601
C (page2/4)
V+5V

IC801
C803

***

C801
C802
VIDEO AMP DRIVER

***
0.1
MM1623BF-TBB
1 Vcc2 28
S-C/C Vcc1
S_C C811 0.1 2
B 2/4 C in DC out 27
3 S-C/C
MUTE1 C out 26
from Q501521 CVBS V C821 1 4 S1 25 SQUEEZE 138pin
V in
(page2/4) 5 S2 24 LETTER 134pin
S-Y/Y 1 YC MIX
S_Y C831 6 S-Y/Y
Y in V out 23
C804 7 22
*** GND1 GND2
C805 8 Y out 21
V
BIAS
D 0.1 9
I/P CY out 20
G/Y
G/Y G/Y C841 1 10
B 2/4 CY in GND2 19
11 B/Cb
CLP Cb out 18
from Q531551 B/CB B/Cb 12 17
Cb in GND2
(page2/4) C851 0.1 13 16 R/Cr
MUTE2 Cr out
R/CR R/Cr 14 15
Cr in GND2
C861 0.1

GND GND

V : V SIGNAL ROUTE
S-C/C : S-VIDEO OUT C/C SIGNAL ROUTE

E S-Y/Y : S-VIDEO OUT Y/Y SIGNAL ROUTE

R/Cr : R/Cr SIGNAL ROUTE

G/Y : G/Y SIGNAL ROUTE

B/Cb : B/Cb SIGNAL ROUTE

: AUDIO SIGNAL ROUTE

D : AUDIO(DIGITAL) SIGNAL ROUTE I/XP

from IC601 139pin

(page2/4)

F
B 2/4

B 4/4
28 DV-270-S
1 2 3 4
 5 6 7 8

9 !: Refer to "3.3 WAVEFORMS".

JA801
B 3/4 VKB1179 (JALCO)
or VKB1196 (SMK)
from page3/4
COAXIAL D
DIGITAL B
AUDIO OUT
(COAXIAL)
B 3/4
from page3/4 GND
AUDIO_L
L
AUDIO OUT
B 3/4 (2CH)
from page3/4 GNDA
AUDIO_R
R

R811
14 75(F) C

C813
C812 0.1 S-C/C

***
R812 10K (2125 size)
S-VIDEO OUTPUT
S-Y/Y

C823
***
C822 R821
13 470/6.3 75(F)
(2125 size)

9 C832
V VIDEO OUT
470/6.3 R831
(COMPOSITE)
C833
***
S-C/C 75(F)

S-Y/Y
10 C842 R841
G/Y
V 75(F)
Y
C843

1000/6.3
***

G/Y 11 D
C852
B/Cb L851 R851 COMPONENT
B/Cb 470/6.3 VTL1089- -T 75(F)
Cb VIDEO OUT
C853
***

12 C862 L861 R861

R/Cr R/Cr
470/6.3 VTL1089- -T 75(F)
Cr
C863
***

F
All resistors and capacitors are 1608 size
unless otherwise specified.
***:parts not mounted
B 4/4
DV-270-S 29
5 6 7 8
 1 2 3 4

3.9 FLKY and IRKY ASSYS

Note1 KEY1 KEY3 KEY2

A FLKY ASSY R115 R116 R113 R114 R111 R112 R109 R110 R103 R104 R105 R106 R107 R108 S125,126,127,128 S122,123,124 S110 116 R162 167 S117,118 R168,169 S108
DV-270/KU/CA VWG2463
DV-2750/WY VWG2464
DV-370/WY VWG2465
DV-270/R* VWG2466
DV-270/RT VWG2467
DV-3701/RA VWG2468
DV-270/LF VWG2470
DV-270/J VWG2472

V+3E

V+3E
Note1 R200

R172
10K
*** R147 R146
1.2K 2.2k
B KEY1

S128

S127
R115

R113

R111

R109

R103

R105

R107

C151
***
[PLAY-270] [EJECT-270]
V+3E
GND

R140

R171
10K
*** R167 R166 R165
1.2K 2.2K 2.7K
KEY3

S116

S115

S114
C152
***
R116

R114

R112

R110

R104

R106

R108

[LEFT-270] [ENTER-270] [DOWN-270]

GND

GND KEY0
R102
C 0 V+3E

C186
V+3E

***
R191
GND

10K
R141 R168 R169
C101
*** KEY2 *** 1.2K 2.2K
R117

R118

R135
***

10k
10K

S118

S117
C195

C102
***

0.1

[HOMEMENU-270] [TOPMENU-270]
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21

GND
LED6
TEST2
FL SET1
FL SET2
ON POWER
TEST3
NOR/KARAOKE
OEM
TES
MS1_0
MS1_1
MS1_2
MS0_0
MS0_1
MS0_2
VDD
VDD
GND
KEY0
KEY1

41 20 R124 ***
42 19
43 18
SEL IR
44 17
LED1 ACK
45 20 KEY2 16
LED0 19 KEY3 HALT
D 46
TEST1
18 GND LED8
15 R123 0 ACK
47 41 LED5 14
TEST0 CTS R122 *** CTS
48 42 LED4 13
NC 43 LED3 RESET OUT XRESET
49 12
NC 44 LED2 POWER ON POWERON
50 IC101 11
P16 XREADY R127 47 XREADY
51 PE5374A 10
P15 SO R128 47 SO
52 9
53
NC FL CONTROL SI
8
R129 0 SI
SCK
SCK R130 0
54
P14
P13
MICROCOMPUTER RESET IN
7
RESET
55 6
P12 IC
56 5
P11 X2
57 4
P10 59 VDD X1
58 60 -28V 1 VDD 3
GND
X101
VSS1142-
(5MHz)

59 2
1000P
NC
NC
NC
G8
G7
G6
G5
G4
G3
G2
G1

V+3E
C183
P9
P8
P7
P6
P5
P4
P3
P2
P1

60 1 V+3E
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
C105
0.1
0.1/50V
C104
C103

E
***

GND
-28V
GND

R195 R196 R199 R197 R198

FLDC+
C106
***

3.3 3.3 3.3 *** ***

FLDC-
32 31 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 2 1
FL+
FL+

P16
P15
P14
P13
P12
P11
P10

FL-
FL-
NP
NP

NP
NP
G8
G7
G6
G5
G4
G3
G2
G1
P9
P8
P7
P6
P5
P4
P3
P2
P1

F
V101
FL TUBE VAW1075- VAW1077-

C
30 DV-270-S
1 2 3 4
 5 6 7 8

C
FLKY ASSY
(LFXJ type: VWG2470)
(Other types: VWG2466) ALL TACT SWITCHES = VSG1024

VWG2475 VWG2476
IRKY ASSY
R145
D (VWG2475)
S129
S130
2.7k S131
S101 B
S126

S125

S103
V+3E S104
V+3E
[PAUSE-270] [STOP-270] V+3E

[POWER-270]
B4B-PH-K-S VKP2321

[<<-270]

[>>-270]
V+3E

R192
1 1

10K
CN103

CN105
R164 R163 R162 2 R153 R152
IR 2
3.9K 6.8K 12K 1.2K 2.2K
3 3
KEY
S113

S112

S111

S110

S101

S103

S104
4
GND

[UP-270] [RIGHT-270] [MENU-270] [RETURN-270] GND

GND
GND

V+3E
C
D106

***

L101
***

R181
***
D103 ***
IC104
RPM7240-H4

1 2 3
R182

D107
***

***

C182

C181
0.1

***
GND REMOTE
RECEIVER

D
FLKY ASSY
CN101 S110 : RETURN
VKN1275- (VKN1219-)
S111 : MENU
XREADY
SO
1
2
XREADY
S112 : \ (cursor button)
S(FtoM)
POWERON 3 POWER ON S113 : (cursor button)
SI 4 S(MtoF) S114 : (cursor button)
XRESET 5 XRESET
SCK 6
S115 : ENTER
SCK
S116 : | (cursor button)
CTS
RESET
7
8
CTS
RESET
B 2/4 S117 : TOP MENU
ACK
FLDC+
9 ACK CN105 S118 : HOME MENU
10 FLDC+
11 V+3E(+3.3V) S125 :

-28V 12 -28V S126 : 
FLDC-
13
14
GND
S127 :  OPEN/CLOSE
FLDC-
15 S128 :  E
GND

V+3E
GND
IRKY ASSY
S101 :  STANDBY/ON
S103 : 
C197

C198

C199
***

***

***

S104 : 

GND

***: parts not mounted

C D
DV-270-S 31
5 6 7 8
 F
E
B
A

D
C

32
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.

E
E POWER SUPPLY UNIT (VWR1377) REPLACE ONLY WITH SAME TYPE NO. 491.800 MFD, BY
LITTELFUSE INC. FOR CP1 (AEK7008).

NOTE OF SPARE PARTS IN POWER SUPPLY (SYPS) UNIT

In case of repairing, use the described parts only to prevent an accident.

1
1

Please write the red mark on the board when the primary section of POWER SUPPLY (SYPS) Unit is repaired.
Please take care to keep the space, not touching other parts when replacing the parts.

CP1

2
2

AEK7008
800mA
CN401

CN1
3.10 POWER SUPPLY UNIT [VWR1377]

DV-270-S
B 2/4

AC IN

3
3

CN2

4
4

NOTE FOR FUSE REPLACEMENT

CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE WITH SAME TYPE AND RATINGS OF FUSE.

E
 5 6 7 8

4. PCB CONNECTION DIAGRAM

4.1 LOAB ASSY
NOTE FOR PCB DIAGRAMS : A
1. Part numbers in PCB diagrams match those in the schematic 3. The parts mounted on this PCB include all necessary parts for
diagrams. several destinations.
2. A comparison between the main parts of PCB and schematic For further information for respective destinations, be sure to
diagrams is shown below. check with the schematic diagram.
Symbol In PCB Symbol In Schematic 4. View point of PCB diagrams.
Part Name
Diagrams Diagrams
B C E B C E
Connector Capacitor
Transistor
B C E

B C E B C E SIDE A
Transistor
B C E with resistor
B
D G S D G S
Field effect
D G S transistor
P.C.Board Chip Part SIDE B

Resistor array

3-terminal
regulator

SIDE A SIDE B

A LOAB ASSY
(VNP1879-B)

LOAB VNP1879-B
GB-04

(V+5D)
S101
GND

V+3D
1 5 5 1 LOAD+
D
VWG2346- -CN
CN602 C102 LOAD-
SW2

VWG
1 2 C101
CN601
1 5 5 1

CN602
CN601

CN602 CN601 CN601 CN602

B CN103
M
LOADING
MOTOR E
ASSY

A A
DV-270-S 33
5 6 7 8
 1 2 3 4

4.2 DVDM ASSY

SIDE A IC400 IC403 IC60 IC603 IC602 IC101 IC601 IC402 IC404 IC401
IC703
IC301
A
Q403 Q401 Q412 Q7 Q8 Q5 Q72 Q751 Q71
Q402 Q4

STEPPING
M MOTOR CN104

SPINDLE PICKUP
M MOTOR CN102 ASSY-S CN101 CN401 E CN2
I
D P PC FC DC Q72
C7

C232 R
CN101

R234
R233
CN104 R72
B 12 24 2 1 CN401

Q71
23 1
1 C6 CN102 4 13 C705
C233 10 C408
R422

R16

R432
L9
R26
C230 1 R413
R414

R420

R751
R25

R240
IC401

R750
R423 IC703

L8
R115 C440 C410
Q5 C420 5
R116 4 3 Q751
3
C

Q8
Q7
R117

R239

C432
2
KF 8
R118 2

R13

R770
REFLOW

C231
R119 5 1 5 1
R120 R21
CN601

R22 IC402

C401

L707
R107
C118

Q4
R18

R106
C113

R701
C120 C112 R14 R15 C402 C703

C431
C116 C404 1 4
C12

R103 IC404 R702

R104

C10
C114 C8
A

C44
C43

C45
C46

C30
21 1
DVDM
VNP1957-B

C11
C102 R27

C20
C33 C32
C R28
R30 IC301 65
CN103

102

C9
1

103
CN103

R29
R35

GND
22 42 R36

2.5V
C50
R37 C51
C142
IC403

IC101
R41

R40
5

C125 C48
CN60

C619
R39
C139
C136

R600
C132
C134
3

C403
C49
4

R43 R38

C615

C614
C613
C612
C618
C430

30
C130
1
5

R441 128 39
29

R42
R411 C152 R124 38

C616
1
24
25
R444 Q403

R633 IC603

C47
Q401

C23
C41
CN101

Q402 R442

R499 C63
R663

C610
D C39
C35

C37
C36

C34
C27
C38
C

R443

C26
C25
C29

R23
C601
C699
2

C604
1
15

3.3V

C663
C607
C421

9 R664

1
C416
C414
C409

48

IC60 C603
R619
R618
R615
R614
R613
R612
R616

C633
CN105

R609

C625
R68
R69

R24
10

C617 R601
C635
C655
CN105

C605
C642

C124
R666

C626
R412

C609
C60

R662

C611

R607
54
R66
R657

R606
216
C662
2

C407 C671
1

R659

R665 R421
55
R667

CN61

Q412
C606
HEAT RESISTANCE PREFLUX

54
1

R668 C681
1

C640 R602
C602
C666
C415
C628

C692
3

R687
IC400

C670
C632
1

R688
C688
E C682
C627
5
4

IC601

R640

R400 C685
C624
C629

R691 C697
C683

R67
R2

IC602

C644

R603 C669
R686
R1

C608

R532 R53
C665

R604
108

C622 163
R552
28

R661
R660
162

R542
109
27

C661
C639

CN602 C623 R502

C630

C650

C620
C659
R651
C600

R617
C621

R522
R642

C660 R
4 1 R512
A

C667
R654
R649
R648

R652
R644

R653
R643

B
34 DV-270-S
1 2 3 4
 5 6 7 8

01
IC703
IC301 IC701 IC81 IC801 IC702
SIDE A
A
Q72 Q751 Q71 Q70 Q73 Q76 Q75 Q730 Q805 Q752 Q753 Q756 Q748 Q746
Q801 Q791 Q758

N2
2003.11.28 MT OUT
B DVDM ASSY
R70
R77

D731
R731

R730
C730
C76 (VNP1957-B)
R74

Q72 1
C72 C77 Q76
R71
R72 Q748 2/2

R748
B
Q75

JA801
Q73

1 C75 8
CN702

R716
Q71

R76
R73

R718
Q70
C731

R754
R752
C705

R746
R717
R724 R720

Q752
Q746
1 R413

C727 C717
R715
Q730
R751

Q753
C401 C706
R750

IC703 IC701
R753

R756
R7110
9

Q756
Q751
16

3 C715
2 R713
R770

R7130 R727
1
C714
R712

R726
R711

R700
L707

C711

R725

C713
R701

4
1

C703
C431

1
C712

C853
R758
C702
C704
R702
C733
C732

R728
C724
D700 C721

C722

Q758
C8
R851
R707
R777
C777
C30

L851
C20

2 5 8 IC702
R75 C
IC301 C723 C863
65 R7210
R7230
R861
R722

64
C80

R721 L861
C701

R723 C725
C843
C81

CN801 R841

1 C833

R831
20
39
R892
R893

38
C823
R81
IC81

C16 C83 C82

C18 C13
C23

R17

C87 C86

C15
R33
R32 D
C852

C39 R11
R821
R82

C35
C34
C27
C38

R12
C88

C14 C842
C26
C25
C29

R23

C85
R83

C17
R894

C604 C19 C812

C813
C663

C
A
B

C603
R811
C84
C625

R812
R24

0 1 2 3 4 5 6 7 8 9

C801

R601 R808
C626

C862
R607

C803 C802 C822

C811
R606
216

28
1
C662

C832

R807
C671
R871
C831 C821
C606

C681
L891 L881
C640 R602
C602

R881

C692 C872
IC801

C841
R687

CN802
R891
0 1 2 3
1
1

C688
C851 E
R640

C685
0
0

C861
C791
14

15

C793

T
X601

C882
C892
C683

R67
R797

C805
Q805
C644

L797
JA701

C669 C804 C792

R686

R810

R532 R533
C665

3 R806
R552
R553 Q801
R660

C790

R542 L790
R543
C661

VWS1571
VWS1572
VWS1573
VWS1574
VWS1575

R502 R503 R796

R795
R792
VWS15

R523
R522
R794

R513
R791

R512
Q791
C667
R793

B
DV-270-S 35
5 6 7 8
 1 2 3 4

SIDE B
A

B DVDM ASSY
(VNP1957-B) 1

8
B CN702 1

CN80
1
1

20

B
36 DV-270-S
1 2 3 4
 5 6 7 8

SIDE B
A

CN104

CN401 CN101 CN102

CN104 CN101
1
CN401
12 B

4 CN102 1

CN103
1

CN103
5

D
15

CN105
CN105
1

CN602
1 4

B
DV-270-S 37
5 6 7 8
 1 2 3 4

4.3 FLKY and IRKY ASSYS

SIDE A
A

1/4

D IRKY ASSY
(VNP1955-C)

W154
L101
C181 IC104
D105

W136

W135

W134
VWG2477-
POWERON270
PC

+3.3V(270)
W169

IR(270)
S101 VWG2476- W152 <<270 >>270

CN104
VWG2475- S103 S104
LED(THAI)
VNZ1766-C
B

GND

KEY0
POWERON370
S129
IRKY ASSY S131
S130 >>370
<<370

FLKY ASSY STOP270 PAU

W151 LED(TAI)
VNZ1765-C S125 S1

5 1
CN103 S122
CN102 STOP370
PAUSE370

CN103

SIDE B
D

CN103
CN102
CN103 ASSY
V+3E
LED
GND
KEY
IR

R145
5 1
C186

R146
1/4
R152

R182
R153
0 0 0 -A

E D103
CN104
VWM2 1 1 1
2
3
4
5
6
7
8
9

R192
2
3
4
5
6
7
8
9

1.V+3E
2
3
4
5
6
7
8
9

2.IR
C182 3.KEY 5.LED
R190 4.GND
D106
D107

LF IRKY ASSY
GB-04
R181

D IRKY ASSY
(VNP1955-C) 1/4

C D
38 DV-270-S
1 2 3 4
 5 6 7 8

SIDE A
A

C FLKY ASSY
(VNP1955-C)
CN105 32 28 5 1

V101
MENU
5

TOPMENU UP
>>270 W129 GND S111
S117
CN104

S104 -28V S113

W110 -28V W122 GND
CN105

FL102
W111
B

IC102
RIGHT
S131 S127 W120 IR(370) S112
1

>>370 EJECT270 W126 ENTER

W119 +3.3V S115
FLDC+

W112 W117 KEY3(270) W140

W108
LED(TAI)

GND W149 KEY2 +3.3V(370)

GND LEFT
HOMEMENU S116
W139 C188

W155
STOP270 PAUSE270 CN101 DOWN S110

L102
GND

W114
W113

W115

W116
S125 S126 PLAY270 S118
S128 C101
VWG2470- S114 RETURN
W150

VWG2472- X101
W130

15
W148
+v3.3V
W153

+3.3V

KEY2
+3.3V
KEY1

VWG2463-

KEY3(270)
VWG2465-

IR(370)
1
CONTACT SIDE UP
VWG2464-
S124 W107 VWG2466- 1/4
IR(270) PLAY370
EJECT370 VWG2468-
PAUSE370 S123 W106 S108
+3.3V

CN101
B CN105
C

SIDE B
D

CN101
FLKY ASSY 11.V+3E 6.SCK
10.FLDC+ 5.XRESET
15.GND
R200 14.FLDC-
9.ACK 4.S(M TO F)
8.RESET 3.POWER ON
CN101(15P)
R102

13.GND
R124

R147 R122 2. S(F TO M)

R145 12.VFDP 7.CTS
C151
C195

1.XREADY
1 R123 15
CN101
21

C102 C152 R127

R171

R191

R166
R128
R172

R107
R105 R110
R146

R109 R103
R164

R162
R129
R194
R168
40
R108
R106
R104

C183

R198

R193
C105

R130
1
R117

R165

R163
R140
R169
D104
R118

R167
R113
R111

R141
80
41
R135
R116

R199
R152
R153

10
1 R197 LF
E
R196

C197
C198
C199
CN105

IC
CN104

R115
R192

R112 R114
60

61

C103 C104
1.V+3E R195
C187

2.IR
3.KEY C106
5

5.LED GB-04
4.GND

CN105
C FLKY ASSY
(VNP1955-C)

C D
DV-270-S 39
5 6 7 8
 1 2 3 4

4.4 POWER SUPPLY UNIT [VWR1377]

E POWER SUPPLY UNIT (VWR1377)

AC IN

D B CN401
CN2

F
(VWR1377-B)

E
40 DV-270-S
1 2 3 4
5 6 7 8

E POWER SUPPLY UNIT (VWR1377)

F
(VWR1377-B)

E
DV-270-S 41
5 6 7 8
 1 2 3 4

5. PCB PARTS LIST

NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.
A
The mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
When ordering resistors, first convert resistance values into code form as shown in the following examples.
Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).
560 56 x 10 1 561 RD1/4PU 5 6 1 J
47k 47 x 10 3 473 RD1/4PU 4 7 3 J
0.5 R50 RN2H R 5 0 K
1 1R0 RS1P 1 R 0 K
Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).
5.62k 562 x 10 1 5621 RN1/4PC 5 6 2 1 F

Mark No. Description Part No. Mark No. Description Part No.
B
LIST OF ASSEMBLIES IC301 MT1336E-L1
IC601 MT1379EE-L1
[RRXCN, RPWXCN, RDXJ/RB, and RLXJ/NC types] IC701 PCM1742KE
NSP 1..04 LOADER ASSY VWT1210 > IC402 PQ1M255M2SPQ
NSP 2..LOAB ASSY VWG2346 > IC401 PQ1M505M2SPQ

1..DVDM ASSY VWS1575 IC400 PST3228

> IC403 S-L2980A33MC-C6S
NSP 1..FLKB ASSY VWM2234 IC603 VYW2207
2..FLKY ASSY VWG2466 Q753 2SA1576A
2..IRKY ASSY VWG2475 Q401, Q403 2SA1602A
C > 1..POWER SUPPLY UNIT VWR1377 Q4, Q402, Q791 2SC4081
Q746, Q756 2SD2114K
Q412, Q751, Q752 DTC114YUA
Q7, Q8 HN1A01F
[LFXJ type] Q5 UM5K1N
NSP 1..04 LOADER ASSY VWT1210
NSP 2..LOAB ASSY VWG2346
COILS AND FILTERS
L790, L851, L861 CHIP BEADS VTL1089
1..DVDM ASSY VWS1575

NSP 1..FLKB ASSY VWM2238 CAPACITORS

2..FLKY ASSY VWG2470 C644 CCSRCH100D50
2..IRKY ASSY VWG2475 C713, C723 CCSRCH101J50
D C640 CCSRCH120J50
> 1..POWER SUPPLY UNIT VWR1377 C142 CCSRCH221J50
C407, C409, C414, C421 CCSRCH330J50

C14, C717, C727 CCSRCH331J50

C26 CCSRCH391J50
C30 CCSRCH471J50
C612, C613 CCSRCH561J50
Mark No. Description Part No. C25 CCSRCH820J50

A LOAB ASSY [VWG2346]

SWITCHES AND RELAYS
C705, C711, C721, C731
C701, C842
C792
CEAT101M10
CEAT102M6R3
CEAT1R0M50
E C10, C610, C715, C725, C733 CEAT470M16
S101 REAF SWITCH VSK1011
C9 CEAT470M16
OTHERS
C822, C832, C852, C862 CEAT471M6R3
CN602 CONNCTOR S2B-PH-K
C124, C13, C606, C609 CKSRYB102K50
CN601 CONNCTOR S5B-PH-K
C625, C626, C688 CKSRYB102K50
PRINTED CIRCUIT BOARD VNP1879
C130, C134, C136, C603C605 CKSRYB103K50
C607 CKSRYB103K50

B DVDM ASSY [VWS1575]

SEMICONDUCTORS
C401C403
C23, C48, C618
CKSRYB105K10
CKSRYB153K50
C112C114 CKSRYB222K50
IC702 BA4560F C615, C619 CKSRYB472K50
F IC60 BR24L02FV-W C712, C722 CKSRYB681K50
IC602 K4S641632F-TC75
IC101 M63018FP C15, C18, C20, C230 CKSRYF104Z25
IC801 MM1623BF C232, C233, C27, C32C34 CKSRYF104Z25
42 DV-270-S
1 2 3 4
 5 6 7 8
Mark No. Description Part No. Mark No. Description Part No.
C36C38, C41, C431, C432 CKSRYF104Z25 CN101 15P CONNECTOR VKN1275
C47, C49, C51, C602, C702 CKSRYF104Z25 X101 (5MHz) VSS1142
C704, C706, C714, C724, C732 CKSRYF104Z25
A
C802, C805, C811, C812, C851
C861
C102, C125, C132, C139, C408
CKSRYF104Z25
CKSRYF104Z25
CKSRYF105Z10
C FLKY ASSY [VWG2470]
SEMICONDUCTORS
C410, C420, C43, C430 CKSRYF105Z10 IC101 PE5374A
C44C46, C6, C600, C608 CKSRYF105Z10
SWITCHES AND RELAYS
C611, C617, C620, C622C624 CKSRYF105Z10 S110S118, S125S128 VSG1024
C627C629, C63, C630 CKSRYF105Z10
C632, C633, C635, C639, C642 CKSRYF105Z10
C650, C655, C659, C660, C662 CKSRYF105Z10
CAPACITORS
C183 CKSRYB102K50
C665, C666, C669, C670 CKSRYF105Z10
C102, C105 CKSRYF104Z25
C104 CKSRYF104Z50 B
C682, C683, C685, C692, C697 CKSRYF105Z10
C790, C821, C831, C841 CKSRYF105Z10
C29 CKSRYF333Z25 RESISTORS
All Resistors RS1/16S###J
RESISTORS
R662, R668 RAB4C330J OTHERS
R688 RAB4C680J CN103 CONNECTOR B4B-PH-K
R711, R721 RD1/4PU103J V101 FLUORESCENT TUBE VAW1075
R713, R723 RD1/4PU183J CN101 15P CONNECTOR VKN1275
R753 RS1/10S182J X101 (5MHz) VSS1142

R103, R106 RS1/10S1R0J

R104, R107
R115R120
R811, R821
RS1/10S1R8J
RS1/10S4R7J
RS1/10S75R0F
D IRKY ASSY [VWG2475]
SWITCHES AND RELAYS
C

R502, R512, R522, R532, R542 RS1/16S1500F S101, S103, S104 VSG1024

R552 RS1/16S1500F CAPACITORS

R661 RS1/16S2201F C182 CKSRYF104Z25
R831, R841, R851, R861 RS1/16S75R0F
Other Resistors RS1/16S###J RESISTORS
All Resistors RS1/16S###J
OTHERS
CN401 CONNECTOR B13B-PH-K OTHERS
CN103 CONNECTOR B5B-PH-K
IC104 REMOTE RECEIVER UNIT RPM7240-H4
JA701 OPT. LINK OUT JFJ1001
0 CONNECTOR ASS'Y(4P) VKP2321 D
JA801 JACK VKB1179
CN104 4P CONNECTOR VKN1235

CN102 12P CONNECTOR

CN105 15P CONNECTOR
VKN1243
VKN1246
E POWER SUPPLY UNIT [VWR1377]
OTHERS
CN101 24P CONNECTOR VKN1464
> CP1 PROTECTOR(800mA) AEK7008
X601 (27MHz) VSS1168

C FLKY ASSY [VWG2466]

SEMICONDUCTORS
IC101 PE5374A E

SWITCHES AND RELAYS

S110S118, S125S128 VSG1024

CAPACITORS
C183 CKSRYB102K50
C102, C105 CKSRYF104Z25
C104 CKSRYF104Z50

RESISTORS
All Resistors RS1/16S###J
F
OTHERS
CN103 CONNECTOR B4B-PH-K
V101 FLUORESCENT TUBE VAW1077

DV-270-S 43
5 6 7 8
 1 2 3 4

6. ADJUSTMENT
6.1 ADJUSTMENT ITEMS AND LOCATION
A Adjustment Items Adjustment Points (Mechanism Part)
[Mechanism Part]
Cautions: After adjustment, adjustment screw locks with the
1 Tangential and Radial Height Coarse Adjustment Screw tight.
2 DVD Error Rate Adjustment

1 2 1 2
Tangential
adjustment Radial
[Electrical Part] screw adjustment
screw
Electrical adjustments are not required.

D
6.2 JIGS AND MEASURING INSTRUMENTS

Test mode remote control

E Screwdriver (large) Screwdriver (medium) TV monitor unit (GGF1381)

Screw tight
(GYL1001)

Precise screwdriver DVD test disc Soldering iron

(GGV1025)
F

44 DV-270-S
1 2 3 4
 5 6 7 8

6.3 NECESSARY ADJUSTMENT POINTS

When Adjustment Points
Exchange Parts of Mechanism Assy A

Mechanical ~, After adjustment, screw locks

Exchange the Pickup
point with the Screw tight.

Electric
point

Exchange the Traverse Mechanism

Mechanical
point
B
Electric
point

C
Exchange PCB Assy

Exchange PC Board
Mechanical
point
LOAB and DVDM ASSYS
Electric
point

DV-270-S 45
5 6 7 8
 1 2 3 4

6.4 TEST MODE

POWER ON

POWER

B ON

DISC SET
<TRAY OPEN> <TRAY CLOSE>

OPEN/CLOSE DVD disc OPEN/CLOSE

(Player) (Player)

TEST MODE: PLAY

CHECK
<PLAY> DVD, CD An address is displayed
ESC TEST
Press the play key
( ) of the normal
D remote control unit.

GGF1381
Test mode DSC - &&&
remote control
unit

Notes:
After going into test mode, if you play back the disc, "DISC-NON" is displayed.
The video signal and the audio signal are outputted during the test mode.
The SKIP key and the SCAN key are effective during the test mode.
E

TEST MODE: OFF

ESC

POWER
OR
GGF1381
Test mode
F OFF remote control
unit

46 DV-270-S
1 2 3 4
 5 6 7 8

6.5 MECHANISM ADJUSTMENT

A
1 Tangential and Radial Height Coarse Adjustment

START
Remove the pickup Assy from the Traverse Mecha. Assy. Pickup Assy

Remove the joint and the joint spring of the pickup Assy.

Note:
Before removing the flexible cable for the Joint
B
pickup, soldering of the pickup circuit is
necessary.
For details, see "7.1.10 DISASSEMBLY". Joint Spring

Pass through the guide shaft to a new pickup Assy-S. Pickup Assy-S
Attach it to the Traverse Mecha. Assy.

Guide Shaft

D
Put the joint between the Tangential (or Radial) adjustment screw and the Mechanism Base
and turn each screw to adjust the height.
(Refer to "6.1 ADJUSTMENT ITEMS AND LOCATION".)

Joint

7.5mm

Mechanism Base
E

Attach the Traverse Mecha. Assy to the Loader Assy.

Turn it over and attach the joint and the joint spring.
Arrange the flexible cables.
(Refer to "7.1.10 DISASSEMBLY".)

DV-270-S 47
5 6 7 8
 1 2 3 4

2 DVD Error Rate Adjustment

Play the DVD test disc
Notes: at inner track
A Use disc: GGV1025 (around #30000)
BER:Block Error Rate

START
Mechanism Assy
Play the DVD test disc
at inner track Adjust the radial adjustment Mechanism Assy
Display BER on the monitor screw so that
BER becomes under "5E-5". Fasten the radial
ESC CHP/TIM
adjustment screw so that
BER becomes over "1E-3".
BER : under "5E-5"
BER : over "1E-3"

Unfasten the radial adjustment screw

by 90 degrees step till BER becomes
over "1E-3" again .
Record the number of rotation (N1).

Fasten the radial adjustment screw

till the number of rotation becomes
harf of N1.

ESC
BER : - - - -

Player Service mode end

Monitor Play the DVD test disc

at outer track
(around #200000)

Turn the POWER OFF in

case of NG once, and \ Service mode
perform the adjustment
D ESC CHP/TIM
once again.
N

If error rate is OK,

G

locks a root of
tangential and radial Mechanism Assy
adjustment screws with CHECK
the Screw tight. Confirm that the error rate is Fasten the tangential
Screw tight: GYL1001 OK under "5E-5". adjustment screw so that
BER becomes over "1E-3".

BER : over "1E-3"

E
Disc playback normally.
The measurement of
block error rate Unfasten the tangential screw
by 90 degrees step till BER becomes
ESC CHP/TIM over "1E-3" again .
ESC Record the number of rotation (N1).

Fasten the tangential adjustment screw

till the number of rotation becomes
Service mode end harf of N1.

48 DV-270-S
1 2 3 4
 5 6 7 8

7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 TEST MODE
A
Test Mode Functional Specification
1 Test mode entry
In the power ON state, press the [ESC] (A8-5F) key and [TEST / RANDOM] (A8-5E) key in order of the Test mode remote control
unit.
Light the all FL and LEDs.
OSD displays test mode.

Note:
* When pressing the keys of something, the FL displays "NO DISC" and the LED lighting disappears.

B
2 Release the Test mode
Turn off the power.
Press the [ESC] (A8-5F) key of the remote control unit and reset it.

3 LD ON
DVD : Press the [TEST] (A8-5E) and [1] (A8-01) keys in order, and turn on the laser diode (650n).
CD : Press the [TEST] (A8-5E) and [4] (A8-04) keys in order, and turn on the laser diode (780n).

DV-270-S 49
5 6 7 8
 1 2 3 4
7.1.2 DISPLAY SPECIFICATION OF THE TEST MODE

Character in bold : Item name 2

A
: Information display 3

1 7
8
5 9
6
12 13
14
15

10
B
11

1 Address indication 0 Disc sensing [DSC ]

The address being traced is displayed in number. The type of discs loaded is displayed.
(as for the DVD, indication of decimal number is possible.) [DVD], [CD ], [VCD], [ ]
DVD : ID indication (hexadecimal number, 8 digits)
[ ]
CD : ID indication [ ] - Jitter value [J ] Note:Don't use it.
C
2 Code indication of remote control unit [R ] = Version of the FL controller [FL: ]
In case of double code, display a 2nd code.
~ Region setting of the player [REG: ]
3 Main unit keycode indication [K ] Setting value : [1] to [6]

5 Tracking status [TRKG ] ! Destination setting of the FL controller

Tracking on : [ON] [MDL: / ]
Tracking off : [OFF] Four characters in the front represent code 01.
Three characters in the back represent the destination code.
6 Spindle status [SPDL ] J: /J, K: /KU, /KC, /KU/KC, R: /RL/RD, RAM : /RAM,
[OFF], [CLV] LB: /LB, WY: /WY
D

7 Mechanism (loading) position value [M ] @ Version of the flash ROM [V: . ]

Unknown : [01] or [41] Flash ROM size [FLASH = ]
Open state : [04]
Close state : [08]
During opening : [12]
During closing : [22]

8 Slider position [S ]
In Side Switch ON : [01]
In Side Switch OFF : [00]
E
9 Output video system [V ]
NTSC system : [NTSC]
PAL system : [PAL]
Automatic setting : [AUTO]
Scart terminal output [SK ]
(Display only the WY model which can do the output setting
of scart terminal.)
VIDEO : [00]
S-VIDEO : [01]
RGB : [02]

50 DV-270-S
1 2 3 4
 5 6 7 8
7.1.3 FUNCTIONAL SPECIFICATION OF THE SHORTCUT KEY
Only during normal playback, the following shortcut keys can be assigned by pressing a required key after pressing the ESC
key of the remote control unit. To quit, press the ESC key
Remote Control Remote A
Command Contents Conditions
Key Name Control Code
Memory clear and region / revision indication CLEAR (1) A8-45
Average value measurement of DVD error rate 5 (1) A8-05
CD error rate measurement 5 (1) A8-05
Scart terminal output : VIDEO AUDIO AF-BE
Scart terminal output : S-VIDEO WY, models equipped with Scart terminal SUBTITLE AF-36
Scart terminal output : RGB ANGLE AF-B5
Progressive OFF R_SKIP A3-9D
Only for progressive models
Progressive ON F_SKIP A3-9C
FL indication of ID number STEREO (1) A8-4A
B
ZOOM ON (X2 -> X4 -> x1) ZOOM AF-37
Service mode indication (error rate indication, etc.) CHP/TIM (1) A8-13
Model information indication CHAP (1) A8-40
Title search Input mode IN SIDE A (1) A8-4D
Title No. input Numbers (1) A8-00 to A8-09
Search execution PLAY (1) A8-17
AUDIO (1) A8-1E
Region confimation mode
Numbers (1) A8-01 to A8-08
1 : Test mode remote control unit

C
Service mode indication (ESC + CHP/TIM keys)
ID Address
The error rate is always displayed in exponential notation, e.g., . e - , for both DVDs and CDs.
EDC/ID/AV 1 error history (ID Address, EDC/ID Error, last eight errors)

Calculation of the average error rate (ESC + "5" [Test mode remote control unit] keys)
The average of the last eight error rates is calculated and indicated in exponential notation. After the calculation is completed, "OK" or "NG" is
displayed. If "NG" is displayed, the disc tray will open (for both DVDs and CDs)
For DVDs: OK with 5.0e-4 or less, for CDs: OK with 7.6e-3 or less

Indication of model information (ESC + CHAP keys)

The items from 12 to 15 of the TEST MODE Indications are displayed. However, in the indications, S in the standard test mode is changed to
CHIP VERSION, and M is changed to RF VERSION. For details, see 7.1.4.
D
Region confirmation mode (ESC + AUDIO [Test mode remote control unit] + "1"-"8" [Test mode remote control unit] keys)
After you press the AUDIO key while holding the ESC key pressed and then input the region number, if the number is different from that set in
the unit, an error message is displayed, and the tray opens.

DV-270-S 51
5 6 7 8
 1 2 3 4
7.1.4 SPECIFICATION OF MODEL INFORMATION DISPLAY
To display model information : Press the ESC key then the CHAP key.
To close the model information display : Press the ESC key.

Display contents

1
10

9
2
Don't care.
B
3
4
5
6
7
8

Character in bold : Item name

: Information display

1 Destination indication
Display it according to model information set from the FL controller.
2 Region No.
3 Part number
4 ROM version
5 Flash size

6 FL controller version
7 CHIP VERSION
D 8 RF VERSION
9 Remote control code
0 Key code of Main unit

52 DV-270-S
1 2 3 4
 5 6 7 8
7.1.5 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE
Display during Service Mode
To enter Service Mode, press the CHP/TIM key while holding the ESC key pressed.
To quit, press the ESC key.
A
Service mode display
1 ID Address
2 Error rate (always displayed), in exponential notation
ERROR RATE :
()

Number of error

Calculation of the average error rate

For DVDs: OK with 5.0e-4 or less, for CDs: OK with 7.6e-3 or less

ex) For DVDs B

Step 1 Step 2
%%e -& %%e -4

%%e -6 : OK 3.0e -4 : OK
%%e -5 : OK 4.0e -4 : OK
%%e -4 : Refer to Step 2 5.0e -4 : OK
%%e -3 : NG 6.0e -4 : NG
%%e -2 : NG 7.0e -4 : NG

C
3 EDC/ID error history (ID Address, EDC/ID errors, last eight errors)

Note:
Error of AV1 is not supported in this player.

Indication plan contents

3
1
2
D

Character in bold : Item name

: Information display

DV-270-S 53
5 6 7 8
 1 2 3 4
7.1.6 METHOD FOR DIAGNOSING DEGRADATION OF THE LDS ON THE PICKUP ASSY

Case when this diagnosis is required :

A When playback of any disc, including a test disc (DVD: GGV1025, CD: STD-905), cannot be performed

How to diagnose
In the case mentioned above, degradation of the laser diodes (LDs) mounted on the PICKUP Assy is suspected.
Measure the voltage between the two ends of one of the resistors mentioned below.

No playback of a DVD :
Measure the voltage between the two ends of R22 or R25 on the DVDM Assy.
B If the voltage is 0.4 V or higher, the 650-nm LD is degraded.
If the measurements show degradation
of an LD, replace the PICKUP Assy.
No playback of a CD :
Measure the voltage between the two ends of R21 or R26 on the DVDM Assy.
If the voltage is 0.4 V or higher, the 780-nm LD is degraded.

PICKUP ASSY

CN101 B DVDM ASSY

I
D P PC FC
C232
CN101
R234
R233

CN104
12 24 2 1

23 1
D 1 C6 CN102 4 13
C233 R422
R16
R26
L9

C230
R420

R25
R240
L8

R115 C420
R116 Q5
4
C

R117
Q8
Q7

R239
KF 8

R118
R13
REFLOW

C231

R119 5
R120
R22 R21 IC402
C118

R107

Q4

R18
R106

C113
C112 R14 C402
C120

R15
C116
C12

R103
R104

C10

C114
21 1
C11

C102 R27
R28

Front side
E SIDE A

54 DV-270-S
1 2 3 4
 5 6 7 8
7.1.7 TROUBLE SHOOTING
No. Symptoms Diagnosis Contents Possible Defective Points
1 The power is not turned on. Check the voltage of EV+4V, 28V and FLDC on the POWER
POWER SUPPLY Unit
SUPPLY Unit. A
Are wires of output connector (POWER SUPPLY Unit) and CN401
Connector / cable
(DVDM Assy) disconnected or damaged ?
Check that the following voltage is output :
3.3V Regulator IC (IC403)
IC403-pin 5 : 3.3V on the DVDM Assy
FLKY Assy
Check that the voltage at IC101-pin 22 (KEY0) on the FLKY Assy Tact SW
becomes 0 V when the POWER key is pressed and 3.3 V when it is (when operation of only the
released. POWER key on the main unit is
not accepted)
FLKY Assy
Check that the voltage at IC101-pin 17 (SEL IR) on the FLKY Assy is in Remote receiver section
the range between 0 and 3.3 V while receiving signals from the remote (when operation of only the B
control unit when any key on it is pressed. POWER key on the remote
control unit is not accepted)
2 An opening screen is not Is the level at both IC101-pin 12 (XRESET) and pin 11 (POWER ON) FLKY Assy
displayed on the monitor on the FLKY Assy "H" ? FL Control IC (IC101)
(The FL display lights. The Check the voltage of E+6.8V and SW+3.3V on the POWER SUPPLY
mechanism does not work.) Unit.
POWER SUPPLY Unit
Check the voltage of P-CONT is about 3V on the POWER SUPPLY
Unit.
DVDM Assy
Check that the following voltage are output :
5V Regulator IC (IC401)
IC401-pin 5 : 5V, IC402-pin 5 : 2.5V on the DVDM Assy.
2.5V Regulator IC (IC402)

DVDM Assy C
Is a resonator (X601 : 27MHz) on the DVDM Assy oscillating ?
Crystal resonator (X601)

Is a signal input into IC603-pin26 (PCE#) on the DVDM Assy ?

(Is a signal "H" for 80 mS and then "L" after the power is turned
on ?)
DVDM Assy
Communication with flash ROM.
DVD IC (IC601)
Are the signals input into IC602-pin 16 (DWE#), pin 19 (DCS#)
Flash ROM (IC603)
and pin 38 (SDCLK) on the DVDM Assy ?
SDRAM (IC602)
(Is a signal fluctuating ?)
Communication with SDRAM

Is a signal output from IC603-pin 28 (PRD#) on the DVDM Assy?

DVDM Assy
(Is a signal fluctuating for several hundred mS after the power is turned D
Flash ROM (IC603)
on ?)
DVDM Assy
Is a signal input into IC101-pin 16 (ACK) on the FLKY Assy ?
DVD IC (IC601)
(Is a signal fluctuating ?)
FLKY Assy
Communication with FL Control IC
FL Control IC (IC101)
Is a signal output from IC101-pin 10 (XREADY) on the FLKY Assy ? FLKY Assy
(Is a signal fluctuating in the range of 0-3V ?) FL Control IC (IC101)
DVDM Assy
Are the signals output from IC101-pin 9, pin 8 and pin 7 on the FLKY DVD IC (IC601)
Assy ? FLKY Assy
(in the range of 0-3V) FL Control IC (IC101)
communication line
E
Are the signals of IC60-pin 5(SDA) and pin 6(SCL) on the DVDM Assy DVDM Assy
fluctuating for one or two seconds after the power is turned ? EEPROM (IC60)

3 An opening screen is not DVDM Assy

displayed on the monitor Check the video signal path between DVD IC (DVDM Assy IC601) and
Video circuit after DVD IC
(The FL display lights. The video-out terminal (see the block diagram)
(IC601)
mechanism does not work.)

DV-270-S 55
5 6 7 8
 1 2 3 4

No. Symptoms Diagnosis Contents Possible Defective Points

4 A tray cannot be opened. Does the voltage of CN103-pin 3 and pin 5 on the DVDM Assy change
Tray SW
(An opening screen is normally ?
displayed on the monitor) Pin 3 (SW2(TRIN)): Tray is fully closed: "L"
A Pin 5 (SW1(TROUT)): Tray is fully opened: "L"
DVDM Assy
Is a LOAD-DRV signal reaching ?
DVD IC (IC601)
Are the signals output from IC101-pin 36 and pin 37 (CN103-pin 1 and
pin 2) on the DVDM Assy ? DVDM Assy
Pin 36: Approx. 6V during opening tray approx. 0V during closing tray. FTS Driver IC (IC101)
Pin 37: Approx. 0V during opening tray approx. 6V during closing tray.
Are wires of CN104 and CN103 on the DVDM Assy disconnected or
Connector / cable
damaged ?
Does the voltage of CN102-pin 12 change by pressing the Inside
Inside switch
switch.
5 Playback impossible Are the signals output from IC101-pin 34 (FOCS_DRV) and pin 35 DVDM Assy
B (no focusing) (FOCS_RTN) on the DVDM Assy ? FTS Driver IC (IC101)
Does 650-nm LD emit light ?
Does a pickup lens move up / down ? Pickup
Does an actuator spring bend ?
Are plastic parts damaged ? Or is a shaft detached ?
Mechanism section (motor)
Is the turntable detached or tilted ?
Is flexible cable of CN101 on the DVDM Assy disconnected or
Flexible cable / connector
damaged ?
Is signal output from IC601-pin 12 (FOSO) on the DVDM Assy ?
DVDM Assy
(Device control of about 1.4 V is output usually. It is fluctuated by about
DVD IC (IC601)
250 mV with focus up / down.)
6 Playback impossible Are the signals output from IC101-pin 12 (W), pin 13 (V) and pin 14 (U)
DVDM Assy
C (Spindle does not turn) on the DVDM Assy ?
FTS Driver IC (IC101)
Is pin 41 (STBY) fixed LOW and is pin 38 (ENDM) fixed LOW ?
Is there any part detached from the spindle motor ? Mechanism section
Or Is there any foreign object lodged in it ? (Spindle motor)
Are wires of CN102 on the DVDM Assy disconnected or damaged ? Flexible cable / connector
DVDM Assy
Is signal output from IC601-pin 18 (DMSO) on the DVDM Assy ?
DVD IC (IC601)
7 Playback impossible Does 650-nm LD deteriorate ? 650-nm LD deteriorated.
(Playback stops) If the voltage at each both ends of R22 and R25 on the DVDM Assy is (When playback of a DVD is
0.4 V or more, the 650-nm LD is definitely deteriorated. impossible)
Does 780-nm LD deteriorate ? 780-nm LD deteriorated.
If the voltage at each both ends of R21 and R26 on the DVDM Assy is (When playback of a CD is
0.4 V or more, the 780-nm LD is definitely deteriorated. impossible)
D DVDM Assy
Is there abnormality in FG waveform ? FG output : FTS Driver IC (IC101)
Are there scratches or dirt on the disc ? Disc
8 Picture disturbance during Are there scratches or dirt on the disc ?
playback Disc
Is there a problem with the format of the disc ?
(block noise, freeze, other)
9 No sound DVDM Assy
Check the waveform (ABCK, ALRCK, ACLK, ASDATA).
(Picture is normal) DVD IC (IC601)
Is signal output from IC701-pin 7 and pin 8 on the DVDM Assy ? DVDM Assy
Audio Dac IC (IC701)

56 DV-270-S
1 2 3 4
 5 6 7 8

Symptoms That May Occur When Any Of The Following ICs Is In Failure
IC Symptoms
EEP ROM User's data cannot be stored in memory. A
(DVDM Assy : IC60) The ID number is lost.

8M Flash ROM The power cannot be turned on.

(DVDM Assy : IC603) Downloading of the firmware cannot be performed.

DVD IC Any kind of symptoms (no power, a failure in any of the servo, video and audio systems, etc.) may be
(DVDM Assy : IC601) generated, because the DVD processing is performed by a single chip.

RF IC Failure in the servo system.

(IC301) (no disc-type distinction, no disc playback, etc.)

64M SDRAM No power.

(DVDM Assy : IC602) Block noise is generated during playback.
B

DV-270-S 57
5 6 7 8
 1 2 3 4
7.1.8 ID NUMBER AND ID DATA SETTING
Caution:
For the DVD players compatible with DVD-RW, for playback of a DVD-RW disc (CPRM), it is necessary that an individual ID
number and ID data are set for each player. If the ID number and ID data be not properly set in the manner described below,
A future operations cannot be guaranteed. The ID number is written on the yellow label at the rear panel of the player.
If there is no yellow label, before downloading FLASH ROM, take note of the ID number set following the procedures
outlined in "ID Number Confirmation Mode" on the next page.

Note: Enter ID numbers while the unit is in Stop mode so that the values set will be immediately written to the flash ROM.

Setting an ID number or ID data is required in the 5 After entering all 9 digits, if you press the SEARCH key, the
following case: unit unconditionally sets the input number as the ID number.
If "No ID Number!" or "NO ID DATA!" is displayed on the Then the unit automatically enters Player's Data Input Mode.
TV screen and on the FL display for a few seconds (The SEARCH key is not accepted after all 9 digits have been
immediately after the power to the player is turned on or entered.)
during Stop mode.
[Player's ID Number Setting]
B ID Number ?
JIGS AND MEASURING INSTRUMENTS
000000001

4 <PLAY> Compare Mode

5 <SEARCH> Enter

Input ID Number !

Service Remote Control Unit DVD Data Disc

[GGF1381] [GGV1175 (& GGV1171)]
Note) GGV1175 is to be released in May, 2004. 6 This display appears when the PLAY key is pressed in Step 4.
C Enter a 9-digit number to compare. The number is also
ID Number Input Mode displayed on the FL display.

1 To enter ID Number Input Mode, with no ID number set, such as 7 By pressing the CLEAR key without having input a number, the
in a case of immediately after upgrading the firmware, press the unit returns to Step 2 without doing anything else. Each press
ESC key then the STEREO key. of this key after a number has been input deletes one digit.

Note: If a previous ID number and ID data, such as a factory-

preset ID number and ID data, are maintained, the unit [Player's ID Number Setting]
enters ID Number Confirmation Mode when the above keys ID Number ?
are pressed. However, if only an ID number is maintained, 000000001
the unit enters ID Data Input Mode.
Compare
2 Enter a 9-digit ID number. The ID number is also displayed on 6
the FL display.
D
3 By pressing the CLEAR key without having input a number, you
can exit this mode. Each press of this key after a number has
been input deletes one digit. Input ID Number !

[Player's ID Number Setting]

ID Number ? 8 After entering all 9 digits, if you press the PLAY key, the unit
2 --------- compares the numbers input in Steps 2 and 6, and only if the
numbers match, that number is set as the ID. Then the unit
automatically enters ID DATA Input Mode. If the numbers do not
3 <CLEAR> Exit match, the disc tray is opened, and the unit exits ID Number
Input Mode.

Note: If you press the PLAY button before inputting a 9-digit ID

E Input ID Number ! number, the unit returns to Step 6 without doing anything
else.

[Player's ID Number Setting]

ID Number ?
4 After entering all 9 digits, if you press the PLAY key, the unit 000000001
enters Compare mode. Enter the same ID number again. Only
if your two input numbers match, the ID number is set. Compare Compare
mode helps eliminate mistyping of the ID number. 000000001
Note: If you press the PLAY button before inputting a 9-digit ID
number, the unit returns to Step 2 without doing anything 8 <PLAY> Enter
else.
Input ID Number !
F

58 DV-270-S
1 2 3 4
 5 6 7 8

ID Number Confirmation Mode

1 To enter ID Number Confirmation Mode after the ID number and Indication of an ID number already set
the ID data are set, press the ESC key then the STEREO key. An ID number already set is displayed in the following cases:
1) When the ESC key then the CLEAR key are pressed, user A
2 The ID number already set is displayed. settings are cleared, then the ID number set is displayed on
(It is also displayed on the FL display.)
the screen. In this case, the ID number is not displayed on the
FL display.
3 Enter a 9-digit number for comparison. This is not required
when you only wish to check the ID number visually. 2) When the unit enters ID Number Confirmation Mode by your
(The number is also displayed on the FL display.) pressing the ESC key then the CLEAR key, the ID number set
is displayed. In this case, the ID number is also displayed on
4 By pressing the CLEAR key without having input a number, you the FL display.
can exit this mode. Each press of this key after a number has If you only need to confirm the ID number, you can exit
been input deletes one digit. this mode by pressing the CLEAR key or turning off the power.

Indication when no ID number is set

[Player's ID Number Setting] If no ID number is set, the message "No ID Number!" flashes on
ID Number ? the screen and FL display for a few seconds after the power is
2 000000001 turned on or during Stop mode. B
Compare
3

4 <CLEAR> Exit

Input ID Number !

5 After entering all 9 digits, if you press the PLAY key, the unit C
compares the number entered in Step 2 with the ID number
set, and only if the numbers match, the unit automatically exits
ID Number Confirmation Mode. If an ID data has not been
entered, the unit enters ID DATA Input Mode. If the numbers do
not match, the disc tray is opened, and the unit exits ID Number
Confirmation Mode.
Note: If you press the PLAY button before inputting a 9-digit ID
number, the unit returns to Step 4 without doing anything
else.

6 After entering all 9 digits, if you press the STOP key, the unit
compares the number entered in Step 3 with the ID number
set, and only if the numbers match, the unit automatically
deletes the ID number and exits this mode. If the numbers do D
not match, the disc tray is opened, and the unit exits this mode.
(The STOP key is not accepted after all 9 digits have been
entered.)

[Player's ID Number Setting]

ID Number ?
000000001
Compare
000000001

5 <PLAY> Enter
6 <STOP> Memory Clear
E
Input ID Number !

DV-270-S 59
5 6 7 8
 1 2 3 4

ID DATA Input Mode

1 To enter ID DATA Input Mode, with the ID number set, press the 5 When writing of the data read from the disc to flash ROM is
ESC key then the STEREO key. completed, "Rom Write OK!" is displayed. After seeing this
A message, you can exit this mode by pressing the CLEAR key.
2 When the STEREO key is pressed, the unit enters ID DATA Note: Whether or not the data have been written to flash ROM can
Input Mode. be confirmed by watching for the message "Rom Write OK!"
being displayed after the disc is read.

[Player's ID Number Setting] [Player's Data Input Mode]

ID Number ?
[000000001]
Compare
> 5 Rom Write OK!

<CLEAR> Exit <CLEAR> Exit

B
2 <STEREO> ID Data Setting Mode

Input ID Number !

3 If the DVD DATA DISC is loaded in this mode, the unit 6 If the data cannot be read from the disc, "Disc Error!" is
automatically starts reading the data. displayed on the screen, and the disc is ejected.
(If the DVD DATA DISC has already been loaded, the unit does
not start reading the data. In this case, open then close the
tray.)
C
[Player's Data Input Mode]
4 To exit this mode, press the CLEAR key. While data are being
read from the DVD DATA DISC, you cannot exit this mode.

[Player's Data Input Mode]

6 Disc Error!

<CLEAR> Exit

4 <CLEAR> Exit

D
Insert The ID Data Disc ! Indication when the data have not been set
If no ID data are set after the ID number is changed, the message
"NO ID DATA" flashes on the screen and FL display for a few
seconds after the power is turned on or during Stop mode.

60 DV-270-S
1 2 3 4
 5 6 7 8
7.1.9 SEQUENCE AFTER POWER ON
Flow chart from power on to the picture output

A
STANDBY

Power on operation by a user [DVD IC]

(remote controller key or product key) Accesses 64M SDRAM
(Remaining part)
(Display of VFD : LOADING)
FL controller receives a message

Disc detection (Focus control)

[FL controller] B
FL lighting / outputs a power on signal
(POWER ON: "L""H") Spindle turn

[FL controller] Read DISC information code

Release the reset for DVD IC
(XRESET: "L""H")
Disc Identification

[DVD IC]
Accesses flash ROM The picture appears C

[DVD IC]
Accesses RF IC

[FL controller]
Request communication to DVD IC
(FP_XRDY)

D
[DVD IC]
Outputs the communicable signal to
FL controller (FP_ACK)

DVD IC FL controller
communication

[DVD IC]
Accesses 64M SDRAM (part) E

The opening picture appears

(Pioneer Logo)

DV-270-S 61
5 6 7 8
 1 2 3 4
7.1.10 DISASSEMBLY

Note: Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures
described here are common.
A
Diagnosis of the DVDM Assy

1 Bonnet and Tray panel

1 Remove the bonnet by removing the five screws.
2 Press the STANDBY/ON button to turn on the 2 6
power.
3 Press the 0 button to open the tray.
4 Remove the tray panel.
B 5 Press the 0 button to close the tray.

6 Press the STANDBY/ON button to turn off the

power.

3 3 5
Tray
5
Tray panel
C

How to open the Tray when the power cannot be on

Insert a screwdriver (small) into the slit located at the bottom of the
unit, and slide the projection of the drive cam in the 04 LOADER
Assy in the direction of the arrow, as indicated in the photo. If the tray
D pops out a little, fully pull it out by a hand.

Screwdriver (small)
Projection
Slit

Drive cam

E
Tray open
04 LOADER Assy

F
Screwdriver (small)

62 DV-270-S
1 2 3 4
 5 6 7 8

2 Front panel section

Front panel section
1 Remove the six hooks.
2 A
2 Remove the front panel section. 1 1
1 1
1
1

3 DVDM Assy
1 Remove the four screws.
1 1 1 1
2 Remove the three screws.

C
2 3

DVDM Assy

DVDM Assy
3 Remove the DVDM Assy and stand it against the
other parts.

Diagnosis
E

DV-270-S 63
5 6 7 8
 1 2 3 4

4 04 LOADER Assy
1 Short-circuit two points of C and D by soldering.
Rear view
A
Note: After replacement, connect the flexible cable,
then remove the soldered joint (open).

2 Disconnect the four connectors.

3 Remove the four screws.

CD 2 2 2
4 Remove the 04 LOADER Assy. 1
2

3 3

3 3
4
C

04 LOADER Assy

64 DV-270-S
1 2 3 4
 5 6 7 8

Removing the Traverse Mecha. Assy-S and Pickup Assy-S

A
1 Bridge and Tray
1 Remove the bridge by removing the one screw.
2 Pull out the tray, then remove it by pressing the hook.

2 -1
Hook

1 -1

Bridge

1 -2

Tray
2 -2
D

Note when reinserting the Tray Drive cam Pin

When reinserting the tray, first align the triangle
printed on the loading base and the pin of the drive
cam, then insert the tray.

Front Side

Loading base Triangle

DV-270-S 65
5 6 7 8
 1 2 3 4

2 Traverse Mecha. Assy-S

Flexible cable
1 Dislodge the flexible cables from their packaged for the spindle motor Front Side
A placement.

1
B

Flexible cable for the pickup

Bottom View

Traverse Mecha. Assy-S 2 2

2 Remove the four hooks.
3 Remove the Traverse Mecha. Assy-S.

2 2

66 DV-270-S
1 2 3 4
 5 6 7 8

3 Pickup Assy-S
Note: The Pickup Assy-S can be removed without Front Side
removing the Traverse Mecha. Assy-S. A
(shown as Step .)

1 Remove the flexible cable for the pickup.

C
Flexible cable for the pickup
Bottom View

Adjustment screw 2 2 Adjustment

(Skew screw) screw
(Skew screw)
2 Remove the two adjustment screws.
Pickup Assy-S
3 Remove the Pickup Assy-S.

Note:
Be careful not to lose the spring for the skew screw.

Skew screw

Spring

DV-270-S 67
5 6 7 8
 1 2 3 4

4 Remove the one screw.

Pickup Assy-S
Note: The screw is secured with the silicone adhesive.
A Make sure to apply the silicone adhesive after
reattaching the screw.

4
Silicone Adhesive
GEM1037

Arrangement of the flexible cable for the spindle motor

: Conductive surface
Hook
Front Side

E Hook

Bottom View
F

68 DV-270-S
1 2 3 4
 5 6 7 8

Arrangement of the flexible cable for the pickup

: Conductive surface
A
Note:
Be sure to move the Pickup Assy-S to the innermost perimeter.

1 Fold the flexible cable of pickup with the backing outward 4 Hook the part folded in Step 1 to the hook.
in the illustration below.
5 Pass the flexible cable through the hook.

Reference line
Reference line
Hook
1 5
4 B
Backing
76 mm

Hook

C
2 Attach the flexible cable of the pickup to the connector. 6 Fold the flexible cable along the hook.
7 Pass the flexible cable through the hook.

Hook
2
7
Backing

6 D

Bottom View
Front Side

Hook

3 Pass the flexible cable through the hook.

E
Hook Hook
3

Make sure that the cable is loose

DV-270-S 69
5 6 7 8
 1 2 3 4

7.2 IC
The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.

A List of IC
MT1336E-L1, MT1379EE-L1

7 MT1336E-L1 (DVDM ASSY : IC301)

RF IC

Block Diagram

70 DV-270-S
1 2 3 4
 5 6 7 8

Pin Function A

DV-270-S 71
5 6 7 8
 1 2 3 4

A Pin Function

72 DV-270-S
1 2 3 4
 5 6 7 8

Pin Function A

DV-270-S 73
5 6 7 8
 1 2 3 4

A Pin Function

74 DV-270-S
1 2 3 4
 5 6 7 8

Pin Function A

DV-270-S 75
5 6 7 8
 1 2 3 4

7 MT1379EE-L1 (DVDM ASSY : IC601)

DVD IC
Block Diagram
A

Pin Function

76 DV-270-S
1 2 3 4
 5 6 7 8

Pin Function A

DV-270-S 77
5 6 7 8
 1 2 3 4

A Pin Function

78 DV-270-S
1 2 3 4
 5 6 7 8

Pin Function A

DV-270-S 79
5 6 7 8
 1 2 3 4

A Pin Function

80 DV-270-S
1 2 3 4
 5 6 7 8

Pin Function A

DV-270-S 81
5 6 7 8
 1 2 3 4

A Pin Function

82 DV-270-S
1 2 3 4
 5 6 7 8

Pin Function A

DV-270-S 83
5 6 7 8
 1 2 3 4

A Pin Function

84 DV-270-S
1 2 3 4
 5 6 7 8

Pin Function A

DV-270-S 85
5 6 7 8
 1 2 3 4

7.3 DISC / CONTENT FORMAT PLAYBACK COMPATIBILITY

86 DV-270-S
1 2 3 4
5 6 7 8

DV-270-S 87
5 6 7 8
 1 2 3 4

7.4 CLEANING

A Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools:

Position to be cleaned Cleaning tools

Pickup lenses Cleaning liquid : GEM1004

Cleaning paper : GED-008

88 DV-270-S
1 2 3 4
 5 6 7 8

8. PANEL FACILITIES

DV-270-S 89
5 6 7 8
 1 2 3 4

90 DV-270-S
1 2 3 4
5 6 7 8

DV-270-S 91
5 6 7 8
 1 2 3 4

7 Jigs list
Name Jig No. Remarks
A Service Remote Control Unit GGF1381 diagnosis
DVD Data Disc GGV1175 (& GGV1171) diagnosis (ID data setting)
GGV1175 is to be released in May, 2004.
Use only GGV1175 after GGV1175 was
released because GGV1175 includes all the
data of GGV1171.
DVD Test Disc (DVD-Video) GGV1025 Check of DVD-Video
CD Test Disc STD-905 Check of CD

92 DV-270-S
1 2 3 4