Service DEH-2350/X1M/ES

Manual ORDER NO.

CRT2559

HIGH POWER CD PLAYER WITH FM/AM TUNER

DEH-2350
DEH-1350 X1M/ES
X1M/ES

- This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-958 CRT2423 S8.1 CD Mech. Module:Circuit Description, Mech.Description, Disassembly

CONTENTS
1. SAFETY INFORMATION ............................................2 7. GENERAL INFORMATION .......................................39
2. EXPLODED VIEWS AND PARTS LIST .......................2 7.1 DIAGNOSIS ........................................................39
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....8 7.1.1 TEST MODE ..............................................39
4. PCB CONNECTION DIAGRAM ................................24 7.1.2 DISASSEMBLY .........................................42
5. ELECTRICAL PARTS LIST ........................................32 7.1.3 CONNECTOR FUNCTION DESCRIPTION .......46
6. ADJUSTMENT..........................................................35 7.2 PARTS .................................................................47
7.2.1 IC................................................................47
7.2.2 DISPLAY ....................................................54
7.3 OPERATIONAL FLOW CHART ...........................55
8. OPERATIONS AND SPECIFICATIONS.....................56

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

PIONEER ELECTRONICS SERVICE 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

C PIONEER CORPORATION 2000 K-ZZA. OCT. 2000 Printed in Japan

DEH-2350,1350

- CD Player Service Precautions

1. For pickup unit(CXX1285) handling, please refer 2. During disassembly, be sure to turn the power off
to"Disassembly"(see page 42). since an internal IC might be destroyed when a con-
During replacement, handling precautions shall be nector is plugged or unplugged.
taken to prevent an electrostatic discharge(protection 3. Please checking the grating after changing the ser-
by a short pin). vice pickup unit(see page 37).

1. SAFETY INFORMATION
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 trained to 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 may void the warranty.
If you are not qualified to perform the repair of this product properly and safely; you should not risk trying to do so
and refer the repair to a qualified service technician.

2. EXPLODED VIEWS AND PARTS LIST

2.1 PACKING
5
6
3
4

8
2
9 11
7

14 16
1

15
10

13

12

2
 DEH-2350,1350

NOTE:
- Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.
- Screws adjacent to ∇ mark on the product are used for disassembly.

(1) PACKING SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.
1 Cord Assy CDE6468 11-1 •••••
2 Spring CBH1650 11-2 Owner’s Manual CRD3281
3 Screw CBA1002 11-3 Installation Manual CRD3283
* 4 Polyethylene Bag CEG-127 12 Carton See Contrast table(2)
5 Screw CRZ50P090FMC 13 Contain Box See Contrast table(2)

6 Screw TRZ50P080FMC 14 Protector CHP2346

* 7 Polyethylene Bag CEG-158 15 Protector CHP2347
8 Handle CNC5395 16 Case Assy See Contrast table(2)
9 Bush CNV3930
10 Polyethylene Bag CEG-162

(2) CONTRAST TABLE

DEH-2350/X1M/ES and DEH-1350/X1M/ES are constructed the same except for the following:

Part No.
Mark No. Symbol and Description DEH-2350/X1M/ES DEH-1350/X1M/ES
12 Carton CHG4150 CHG4157
13 Contain Box CHL4150 CHL4157
16 Case Assy CXB3520 Not used

- Owner's Manual, Installation Manual

Model Part No. Language
DEH-2350/X1M/ES CRD3281 English, Spanish, Portuguese(B),
DEH-1350/X1M/ES CRD3283 Chinese, Arabic

3
DEH-2350,1350

2.2 EXTERIOR

4
 DEH-2350,1350

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.
1 Tuner Amp Unit See Contrast table(2) 36 Holder CNC8042
2 Screw ASZ26P080FMC 37 Cover CNM6276
3 Screw BPZ26P080FMC 38 Panel CNS5355
4 Screw BSZ26P160FMC 39 Arm CNV4692
5 FM/AM Tuner Unit CWE1563 40 Arm CNV4728

6 Holder CNC8815 41 Arm CNV5576

7 Pin Jack(CN301) CKB1041 42 Screw IMS20P030FZK
8 Terminal(CN403) CKF1059 43 Case Unit CXB4033
9 Plug(CN901) CKM1330 44 Chassis Unit CXB4625
10 Connector(CN601) CKS3581 45 Detach Grille Assy See Contrast table(2)

11 Connector(CN605) CKS3838 46 Screw BPZ20P100FZK

12 Antenna Jack(CN402) CKX1056 47 Button(DETACH) CAC5789
13 Holder CNC8041 48 Button(+/-, EQ, LD) CAC6821
14 Holder CNC8043 49 Button(1-6, CLK) CAC6822
15 Holder CNC9128 50 Button(A, B) CAC6823

16 Heat Sink CNR1589 51 Button(EJECT/BSM) CAC6824

17 Button CAC4836 52 Button(CROSS) CAC6825
18 Spring CBH1835 53 Button(SOURCE) CAC6851
19 Spring CBH2208 54 Spring CBH2210
20 ••••• 55 Cover CNS6114

21 Screw BSZ26P060FMC 56 Keyboard Unit See Contrast table(2)

22 Screw BSZ30P060FMC 57 LCD See Contrast table(2)
23 Screw BSZ30P120FMC 58 Connector(CN1801) CKS3580
24 Cable CDE6160 59 Holder CNC9078
25 Cord Assy CDE6468 60 Sheet CNM7057

26 Fuse(10A) CEK1136 61 Lighting Conductor CNV6475

27 CD Mechanism Module(S8.1) CXK5203 62 Lighting Conductor CNV6476
28 Holder CNC5704 63 Rubber CNV6477
29 Cover CNC9127 64 Rubber CNV6478
30 Cushion CNM5210 65 Grille Unit See Contrast table(2)

31 Insulator CNM6224 66 Holder Unit CXB6681

32 Insulator CNM6386 67 Screw ISS26P055FUC
33 Panel CNS6344 68 IC(IC302) PAL006A
34 Spring CBH2367 69 Transistor(Q904, 981) 2SD2396
35 Bracket CNC6791

(2) CONTRAST TABLE

DEH-2350/X1M/ES and DEH-1350/X1M/ES are constructed the same except for the following:

Part No.
Mark No. Symbol and Description DEH-2350/X1M/ES DEH-1350/X1M/ES
1 Tuner Amp Unit CWM7293 CWM7297
45 Detach Grille Assy CXB6146 CXB6150
56 Keyboard Unit CWM7303 CWM7307
57 LCD CAW1606 CAW1633
65 Grille Unit CXB7182 CXB7186

5
DEH-2350,1350

2.3 CD MECHANISM MODULE

6
 DEH-2350,1350

- CD MECHANISM MODULE SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.
1 Control Unit CWX2411 46 •••••
2 Connector(CN802) CKS2192 47 Ball CNR1189
3 Connector(CN801) CKS2193 48 Belt CNT1086
4 Connector(CN701) CKS2773 49 Roller CNV4509
5 Connector(CN101) CKS3486 50 Arm CNV6037

6 Screw BMZ20P030FMC 51 Arm CNV5247

7 Screw BSZ20P040FMC 52 Arm CNV5248
8 Screw(M2x3) CBA1077 53 Arm CNV5249
9 Screw(M2x5) EBA1028 54 Guide CNV5254
10 Screw CBA1243 55 Guide CNV5255

11 Screw(M2x4) CBA1362 56 Gear CNV5257

12 Washer CBF1037 57 Gear CNV5256
13 Washer CBF1038 58 Guide CNV6272
14 Washer CBF1060 59 Damper CNV6174
15 ••••• 60 Arm CNV6096

16 Spring CBH2079 61 Arm CNV6031

17 Spring CBH2117 62 Arm CNV6211
18 Spring CBH2314 63 Guide CNV6012
19 Spring CBH2110 64 Guide CNV5510
20 Spring CBH2282 65 •••••

21 Spring CBH2318 66 Guide CNV5751

22 ••••• 67 Clamper CNV6013
23 Spring CBH2324 68 Gear CNV5813
24 Spring CBH2118 69 Motor Unit(M1) CXB2190
25 Spring CBH2161 70 Screw Unit CXB5892

26 Spring CBH2163 71 Chassis Unit CXB4797

27 Spring CBH2189 72 Gear Unit CXB4728
28 Spring CBH2377 73 Arm Unit CXB5753
29 Spring CBH2260 74 Motor Unit(M2) CXB2195
30 Spring CBH2262 75 Lever Unit CXB4730

31 Bracket CNC8568 76 Arm Unit CXB4731

32 Spring CBL1369 77 Motor Unit(M3) CXB2562
33 Connector CDE5531 78 Arm Unit CXB4732
34 Connector CDE5532 79 Bracket Unit CXB4795
35 Shaft CLA3894 80 Screw JFZ20P025FMC

36 Screw(M2.6x6) CBA1458 81 Screw JGZ17P025FZK

37 Frame CNC8565 82 Washer YE20FUC
38 Frame CNC8749 83 Pickup Unit(Service)(P8) CXX1285
39 Lever CNC9265 84 Screw IMS26P030FMC
40 Arm CNC8663 * 85 PCB CNX2982

41 Bracket CNC8567 86 Photo-transistor(Q1, 2) CPT230SX-TU

42 ••••• 87 Damper CNV6175
43 Spacer CNM3315 88 Rack CNV6014
44 Sheet CNM6659 89 Spring CBH2315
45 •••••

7
 1 2 3 4
DEH-2350,1350
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A TUNER AMP UNIT
A
FM/AM TUNER UNIT
FM/AM 1ST IF 10.7MHz MPXREF 41kHz
ANTENNA CN402 AMRF T51 Q51 CF51 CF52 CF53 AMDET
AMANT
28 ATT L ch
IC 2 FM MPX 6
R ch
5

ANT ADJ IC1 COMP

21
MIXER, IF AMP, DET. LDET
18
FMANT
27 ATT
RFGND
26 FMRF
CF202

IC 3
IMG ADJ AM 2ND IF X901 EEPROM
450kHz 10.25MHz

FMLOCL
VDD

STIND
SDBW
DGND

FMSD
DI/DO
CREQ
VCC
RF ADJ

NL1
NL2
CE2

CE1
WC

NC
NC
NC

CK

SL
LOCH LOCL
23 25 7 17 20 22 10 19 14 24 9 11 12 15 16 8 13 2 3 4 1
Q411

PDIO

PCE2
PCK
PCE1

SL
SD
PDIO

LOCL

VCC VDD

PICKUP UNIT(SERVICE)(P8) C CONTROL UNIT

LD Q101 CN701 CN605

CN101
MD LD+ 98 16 CDL
14 LD L_OUT 8 17
MD
5
97
PD
A+C/F
HOLOGRAM
UNIT B+D/E IC 201
24 UPD63711GC
FO+ FOP
FOCUS ACT 4
TO+ TOP X201
TRACKING ACT 3
23 RF-AMP, DSP,
SERVO, DAC
IC 301
BA5985FM TD/FD
16 SD/MD
FOP 39
CD DRIVER

18 TOP HOME
4

SPINDLE M S801
C MOTOR 12
SOP
HOME
11
CN801 SOM
14
1 COP
CARRIAGE M 13 COM 1 CDLOAD CDLOAD
MOTOR 2 FWD 6 19
10 28 CDEJET EJET
LOP REV 5 20
9 21 CONT CONT
LOM MUTE 11 14
LOADING 3
MOTOR
M
4

CN802
EJTSNS EJTD
3 22 3
1 DSCSNS DINC
23 2

CLAMP CLAMP
VD 21 4
SELECT Q981
SENSE D802 D801 VD
S802 VD 24 1 B.U
2 CLAMP
DISC SENSE +5V REGULATOR
4 IC 701 2
D PHOTO UNIT(S8) VDD
BA05SFP
IN
Q982
1 CD5VON CD5VON
7 18
VDCONT

8
1 2 3 4
 5 6 7 8
DEH-2350,1350

CN301

REAR L CH
Q346

SYSTEM
CONTROLLER
IC 601(1/2)
PE5196A

6
SD
76
SL

14
PCE
13
PCK
48
TUNPCE2
12
PDO
PDIO 11
PDI VST
VCK Q363
57 VDT
LOCL

CN901

Q903
BACKUP
VDD B.U B.U
FUSE
10A B
2
BACK UP
GND
1
VST/ VCK/ VDT GND
2 POWER AMP
IN2_L

E.VOL 23 FL—
9
FL–
FIE/EQ 10 14 21 FL+
3 Frontout_L FL IC 302 11
IN3_L FL+
11 12 RL PAL006A 3 RL—
IC 301 Rearout_L 10
RL–
PML003AM 5 RL+
12
RL+
MUTE STBY B.REM
22 4 25
SYSPW

Q350 Q351 MUTE

Q902
asens ACC 4
ACC
bsens
B.U
63
ASENS
Q901
64
BSENS

SYSTEM
CONTROLLER
IC 601(2/2) C
PE5196A
42
SYSPW B.REM
31 CDLOAD 5
34 CDEJET B.REM

23 CONT

44
80 MUTE
EJTSNS
79
DSCSNS
B KEYBOARD UNIT
27
CLAMP

CN601 CN1801

8 20
KYDT 3 3 KYDT
22 9 LCD
VDCONT 4 4 18
DPDT DPDT
RESET
60 1 IC 602 2
RESET VDD
S—80834ANY
VDD
56
5 5 VDD
10 VLCD
41
SWVDD Q650
35
CD5VON
KEY CONT.
LCD DRIVER
D
IC 1801
KEY MATRIX PD6340A

22 23

X1801

9
5 6 7 8
 1 2 3 4
DEH-2350,1350
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.

A
A TUNER AMP UNIT
A-a
Large size
SCH diagram
A-a A-b
FM/AM TUNER UNIT

FM(100%):-19.5dBs
CN402
AM(30%):-30dBs
A-a A-b Guide page

A-a A-b Detailed page

272

183
DSP-201M-S00B

162
162
183
CN403
272

203
273

PE5196A

SYSTEM CONTROLLER

CN601

B
KEYBOARD
UNIT

D
NOTE :
Symbol indicates a resistor.
No differentiation is made between chip resistors and For resistors and capacitors in the circuit diagrams, their resistance values or
discrete resistors. capacitance values are expressed in codes:
Symbol indicates a capacitor.
No differentiation is made between chip capacitors and Ex. *Resistors
discrete capacitors. Code Practical value
The > mark found on some component parts indicates 123 12k ohms
the importance of the safety factor of the part. 103 10k ohms
Therefore, when replacing, be sure to use parts of
identical designation. *Capacitors
Code Practical value

A
103 0.01µF
101/10 100µF/10V
10
1 2 3 4
 5 6 7 8
DEH-2350,1350

A-b A
FM(100%):+3.6dBs
AM(30%):-6.9dBs
CD:+9.4dBs
CD:+10.2dBs
E.VOL
FIE/EQ

CN301

Pin 25 : B.REM(DEH-2350/X1M/ES)
NC(DEH-1350/X1M/ES)
332/16
CN901
POWER AMP

PAL006A(DEH-2350/X1M/ES)
TDA7386(DEH-1350/X1M/ES)
B

FM(100%):+29.6dBs

(DEH-2350/X1M/ES)
AM(30%):+19.1dBs
CD:+36.2dBs

>

CEK1136

600µH
331/16

RESET

C
(DEH-2350/X1M/ES)

A.SENS
(DEH-1350/X1M/ES)

B.SENS

CN605
CONTROL UNIT

CD:+4.1dBs
D
C

5 6 7
A
8
11
 B

D
A

C
A-a A-b

12
1
1

TUNER AMP UNIT

A

A-a
DEH-2350,1350

FM/AM TUNER UNIT

FM(100%):-19.5dBs
CN402
AM(30%):-30dBs

2
2

272

183
162

DSP-201M-S00B
162

183

CN403

3
3

272

4
4
 RESE
5

5
203
273
2

PE5196A

SYSTEM CONTROLLER
6

6
CN601

B
KEYBOARD
UNIT
7

7
NOTE :
CONTROL UNIT

Symbol indicates a resistor.

No differentiation is made between chip resistors and For resistors and capacitors in the circuit diagrams, their resistance values or
discrete resistors. capacitance values are expressed in codes:
C

Symbol indicates a capacitor.

No differentiation is made between chip capacitors and Ex. *Resistors
discrete capacitors. Code Practical value
The > mark found on some component parts indicates 123 12k ohms
the importance of the safety factor of the part. 103 10k ohms
Therefore, when replacing, be sure to use parts of
identical designation.

8
*Capacitors
8

A-a
Code Practical value
103 0.01µF
101/10 100µF/10V

13
DEH-2350,1350

A-a A-b
B

C
A

D
 B

D
A

14
A-a A-b

1
1

A-b
FM(100%):+3.6dBs
DEH-2350,1350

AM(30%):-6.9dBs
CD:+9.4dBs
CD:+10.2dBs
E.VOL
FIE/EQ

CN301

2
2

NC(DEH-1350/X1M/ES)
Pin 25 : B.REM(DEH-2350/X1M/ES)

3
3

CN901
332/16

POWER AMP
PAL006A(DEH-2350/X1M/ES)
TDA7386(DEH-1350/X1M/ES)

4
4

FM(100%):+29.6dBs
AM(30%):+19.1dBs
CD:+36.2dBs
(DEH-2350/X1M/ES)

>

CEK1136

600µH
 CEK1136

600µH

RESET

331/16
5

5
2

(DEH-2350/X1M/ES)

A.SENS
(DEH-1350/X1M/ES)
6

6
B.SENS

CN605
7

7
CD:+4.1dBs

CONTROL UNIT
C

8
8

A-b
A-a A-b

15
DEH-2350,1350

C
A

D
 1 2 3 4
DEH-2350,1350

3.3 KEYBOARD UNIT

B KEYBOARD UNIT

LCD DRIVER
KEY CONTROLLER

LCD CAW1606(DEH-2350/X1M/ES), CAW1633(DEH-1350/X1

16 B
1 2 3 4
 5 6 7 8
DEH-2350,1350

EQ

CN601
IL1801, 1802:CEL1651(14V 40mA)
B
CLK LOUD

A
R1708, 1710, 1712:151

BSM

C
D1701-1708:SML210PT

50/X1M/ES)

5 6 7
B
8
17
 1 2 3 4
DEH-2350,1350

3.4 CD MECHANISM MODULE

A
C CONTROL UNIT

PICKUP UNIT
(SERVICE)(P8)

CN101

RF-AMP, SE

CL203IRXTU CL203IRXTU

D PHOTO UNIT(S8)
Q1 CPT230SX-TU Q2 CPT230SX-TU
CN802

SPINDLE MOTOR

M3 CXB2562

CARRIAGE MOTOR

M1 CXB2190

D LOADING MOTOR

CD DRIVER
M2 CXB2195

CN801

18 C D
1 2
BA05SFP
5V REGULATOR
3 4
 5 6 7 8
DEH-2350,1350

SWITCHES:
CONTROL UNIT
S801 : HOME SWITCH.....ON-OFF
S802 : CLAMP SWITCH....ON-OFF
The underlined indicates the switch position.

MP, SERVO, DSP, DAC, LPF

CN701

CN605
A

5 6 7
C8
19
DEH-2350,1350

Note:1. The encircled numbers denote measuring pointes in the circuit diagram.
2. Reference voltage
REFO:2.5V
- Waveforms
1 RFI 0.5V/div. 0.5µs/div. 1 CH1: RFI 1V/div. 0.5ms/div. 1 CH1: RFI 1V/div. 0.5ms/div.
Normal mode: play 2 CH2: MIRR 5V/div. 2 CH2: MIRR 5V/div.
Test mode: Tracking open Normal mode: The defect part
passes 800µm

REFO →

REFO →

REFO →
REFO →

REFO →

3 CH1: FD 0.5V/div. 0.2s/div. 3 CH1: FD 0.5V/div. 0.2s/div. 6 CH1: FE 0.5V/div. 1ms/div.

4 CH2: FO+ 2V/div. 5 CH2: FOK 2V/div. 7 CH2: XSI 2V/div.
Test mode: No disc, Focus close Normal mode: Focus close Normal mode: Focus close

REFO → REFO →

REFO →

REFO →
REFO → REFO →
GND →

8 CH1: TE 0.5V/div. 0.5ms/div. 8 CH1: TE 0.5V/div. 0.5ms/div. 8 CH1: TE 0.5V/div. 5ms/div.

9 CH2: TD 0.5V/div. 9 CH2: TD 0.5V/div. 9 CH2: TD 0.5V/div.
Test mode: 32 tracks jump (FWD) Test mode: Single jump (FWD) Test mode: 100 tracks jump (FWD)

REFO → REFO → REFO →

REFO → REFO → REFO →

6 CH1: FE 0.1V/div. 20ms/div. 3 CH1: FD 0.5V/div. 0.5s/div. 3 CH1: FD 0.5V/div. 0.5s/div.

3 CH2: FD 0.2V/div. 0 CH2: MD 1V/div. 0 CH2: MD 1V/div.
Normal mode: Play Normal mode: Focus close (12cm) Normal mode: Focus close (8cm)

REFO → REFO →

REFO →

REFO → REFO → REFO →

20
 DEH-2350,1350

8 CH1: TE 0.2V/div. 8 CH1: TE 0.5V/div. 0 MD 0.5V/div. 0.1s/div.

20ms/div. 5ms/div.
9 CH2: TD 0.2V/div. ! CH2: SD 0.5V/div.
Normal mode: play TEST mode: 100 Tracks jump(FWD) Normal mode: Play (12cm)

REFO →
REFO →

REFO →

REFO → REFO →

0 MD 1V/div. 10ms/div. @ EFM 1V/div. 5µs/div. 8 CH1: TE 1V/div. 2ms/div.

Normal mode: # CH2: TEC 1V/div.
Long Search (12cm) Normal mode: play Test mode: Focus close
Tracking open

REFO →

REFO →
REFO →

REFO →

GND →

8 CH1: TE 0.5V/div. $ PLCK 2V/div. 0.5µs/div. % SCKO 2V/div. 1µs/div.

0.2s/div.
6 CH2: FE 0.5V/div.
Normal mode: AGC after focus close Normal mode: play Normal mode: play

REFO →

REFO → REFO →
REFO →

GND → GND →

^ Dout 2V/div. 10µs/div. & LRCK 2V/div. 20µs/div. * VD 5V/div. 50ms/div.

Normal mode: play Normal mode: play Normal mode: No disc

GND →
REFO → REFO →

GND → GND →

21
DEH-2350,1350

( CH1: R OUT 1V/div. 6 CH1: FE 0.2V/div. 8 CH1: TE 0.2V/div.

0.2ms/div. 1ms/div. 1ms/div.
) CH2: L OUT 1V/div. 3 CH2: FD 0.5V/div. 9 CH2: TD 0.5V/div.
Normal mode: Play (1kHz 0dB) Normal mode: During AGC Normal mode: During AGC

REFO →
REFO → REFO →

REFO → REFO → REFO →

1 CH1: RFI 1V/div. 3 CH1: FD 0.5V/div. 9 CH1: TD 0.1V/div.

0.5ms/div. 0.5ms/div. 0.5ms/div.
⁄ CH2: HOLD 5V/div. ⁄ CH2: HOLD 5V/div. ⁄ CH2: HOLD 5V/div.
Normal mode: The defect part passes Normal mode: The defect part passes Normal mode: The defect part passes
800µm(B.D) 800µm(B.D) 800µm(B.D)

REFO → REFO → REFO →

REFO → REFO → REFO →

22
DEH-2350,1350

23
 1 2 3 4
DEH-2350,1350

CORD ASSY

4. PCB CONNECTION DIAGRAM

A TUNER AMP UNIT
4.1 TUNER AMP UNIT
A
NOTE FOR PCB DIAGRAMS
1. The parts mounted on this PCB
2
include all necessary parts for
4 6 8 10 12 14 16
several destination.
1 3 5 7 9 11 13 15
For further information for
respective destinations, be
sure to check with the
schematic diagram.
2. Viewpoint of PCB diagrams

Connector Capacitor

SIDE A
B

P.C.Board Chip Part SIDE B

C B
24 A1 2
CN701

3 4
CN1801
 5 6 7 8
DEH-2350,1350

SIDE A

ANTENNA PRE OUT A

3
1 2

C
FM/AM TUNER UNIT

FRONT

5 6 7
A 8
25
 1 2 3 4
DEH-2350,1350

A
A TUNER AMP UNIT

4 3
5 2
6 1

1 6
2 5
3 4

26 A
1 2 3 4
 5 6 7 8
DEH-2350,1350

SIDE B

4 3
1 6 5 2
2 5 6 1
3 4

FRONT

5 6 7
A 8
27
 B

D
A

28
1
1

B
DEH-2350,1350

4.2 KEYBOARD UNIT

B KEYBOARD UNIT

2
2

BSM EJECT
EQ
VOL+
↑
VOL+
AUDIO

← →
VOL-
BAND

LOUD VOL- ↓
SOURCE 1 3 4 5 6
SOURCE 2 CLK

3
3

SIDE A

4
4
1 2 3 4
DEH-2350,1350

SIDE B
A

B
CN601

C
A
KEYBOARD UNIT

D
B

1 2 3
B 4
29
 B

D
A

30
C CONTROL UNIT

1
1

PICKUP UNIT(SERVICE)(P8)

M1 CARRIAGE MOTOR

C D
DEH-2350,1350

M2 LOADING MOTOR
HOME

M3 SPINDLE MOTOR

2
2

4.3 CD MECHANISM MODULE

3
3

PHOTO UNIT(S8) A CN605

D

4
4

3
2 C CN802
1
SIDE A
 1 2 3 4
DEH-2350,1350

SIDE B

CLAMP

B
CONTROL UNIT

C
C

1 2 3
C 4
31
DEH-2350,1350

5. ELECTRICAL PARTS LIST

NOTES:
- Parts whose parts numbers are omitted are subject to being not supplied.
- The part numbers shown below indicate chip components.
Chip Resistor
RS1/_S___J,RS1/__S___J
Chip Capacitor (except for CQS.....)
CKS....., CCS....., CSZS.....
=====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ ------------------------- --- ------ ------------------------------------------ -------------------------
Unit Number : CWM7293(DEH-2350/X1M/ES) RESISTORS
A : CWM7297(DEH-1350/X1M/ES)
R 310 RD1/4PU222J
Unit Name : Tuner Amp Unit R 311 RD1/4PU222J
R 332 RS1/16S221J
MISCELLANEOUS R 333 RS1/16S221J
R 334 RS1/16S221J
IC 301 IC PML003AM
IC 302 IC(DEH-2350/X1M/ES) PAL006A R 335 RS1/16S221J
IC 302 IC(DEH-1350/X1M/ES) TDA7386 R 342 RS1/16S681J
IC 601 IC PE5196A R 343 RS1/16S681J
IC 602 IC S-80834ANY R 344 RS1/16S223J
R 345 RS1/16S223J
IC 970 IC(DEH-1350/X1M/ES) TPD1018F
Q 346 Transistor RN1610 R 346 RS1/16S0R0J
Q 350 Transistor DTA124EK R 351 RS1/16S102J
Q 351 Transistor DTC114EK R 352 RS1/16S103J
Q 353 Transistor DTA124EK R 353 RS1/16S103J
R 354 RS1/16S331J
Q 411 Transistor 2SC2412K
Q 650 Transistor 2SA1037K R 360 RD1/4PU153J
Q 901 Transistor 2SC2412K R 411 RS1/16S681J
Q 902 Transistor 2SC2412K R 412 RS1/16S681J
Q 903 Transistor 2SD1859 R 413 RS1/16S681J
R 414 RS1/16S103J
Q 904 Transistor 2SD2396
Q 905 Transistor 2SB1243 R 415 RS1/16S681J
Q 906 Transistor DTC114EK R 416 RD1/4PU473J
Q 920 Transistor RN46A1 R 417 RD1/4PU472J
Q 981 Transistor 2SD2396 R 418 RS1/16S473J
R 419 RS1/16S473J
Q 982 Transistor RN46A1
D 650 Diode 1SS270 R 420 RS1/16S473J
D 651 Diode 1SS270 R 421 RS1/16S473J
D 652 Diode 1SS270 R 422 RS1/16S473J
D 653 Diode 1SS270 R 423 RS1/16S681J
R 424 RS1/16S681J
D 654 Diode 1SS270
D 655 Diode 1SS270 R 425 RS1/16S393J
D 901 Diode HZS7L(C2) R 427 RS1/16S222J
D 902 Diode S5688G R 428 RS1/16S222J
D 903 Diode S5688G R 460 RS1/16S272J
R 461 RS1/16S272J
D 904 Diode HZS7L(A1)
D 905 Diode S5688G R 464 RS1/16S162J
D 906 Diode HZS6L(B2) R 465 RS1/16S162J
D 907 Diode HZS9L(B3) R 468 RS1/16S0R0J
D 941 Diode S5688G R 469 RS1/16S0R0J
R 610 RD1/4PU203J
D 942 Diode S5688G
D 981 Diode HZS9L(B1) R 611 RS1/16S273J
L 310 Ferri-Inductor LAU1R0M R 619 RS1/16S0R0J
L 401 Ferri-Inductor LAU4R7K R 620 RS1/16S223J
L 402 Ferri-Inductor LAU2R2K R 622 RD1/4PU222J
R 623 RD1/4PU222J
L 403 Inductor LAU100K
L 610 Ferri-Inductor LAU101K R 624 RS1/16S473J
L 611 Ferri-Inductor LAU2R2K R 625 RS1/16S473J
L 650 Ferri-Inductor LAU2R2K R 626 RS1/16S473J
L 901 Choke Coil 600µH CTH1221 R 627 RS1/16S473J
R 628 RD1/4PU222J
X 610 Crystal Resonator 4.194304MHz CSS1023
AR 946 Arrester DSP-201M-S00B
FM/AM Tuner Unit CWE1563

32
 DEH-2350,1350

=====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ ------------------------- --- ------ ------------------------------------------ -------------------------
R 629 RS1/16S473J C 366 CKSQYB474K16
R 630 RS1/16S822J C 367 CKSQYB474K16
R 631 RD1/4PU102J C 368 CKSQYB474K16
R 649 RS1/16S222J C 369 CKSQYB474K16
R 650 RD1/4PU222J C 370 CKSQYB474K16

R 651 RD1/4PU222J C 371 CKSQYB474K16

R 652 RS1/16S472J C 372 CKSQYB225K10
R 653 RD1/4PU222J C 373 (DEH-2350/X1M/ES) CKSRYB473K25
R 654 RS1/16S473J C 390 CKSRYB104K16
R 655 RS1/16S103J C 391 3300µF/16V CCH1368

R 656 RS1/16S103J C 411 CKSRYB223K25

R 657 RD1/4PU102J C 412 CKSRYB223K25
R 658 RD1/4PU102J C 413 CKSRYB102K50
R 660 RS1/16S1R0J C 414 CEJA220M10
R 681 RD1/4PU681J C 415 CKSRYB473K16

R 682 RS1/16S102J C 416 CEAL101M10

R 683 RS1/16S102J C 417 CKSRYB472K50
R 684 RS1/16S102J C 419 CCSRCH101J50
R 901 RS1/16S104J C 420 CCSRCH101J50
R 902 RD1/4PU104J C 462 CKSRYB183K25

R 903 RD1/4PU103J C 463 CKSRYB183K25

R 904 RS1/16S473J C 490 CKSQYB103K50
R 905 RD1/4PU102J C 499 CKSRYB103K50
R 906 RS1/16S473J C 612 CEJA4R7M35
R 907 RS1/16S473J C 613 CKSRYB473K16

R 908 RS1/16S472J C 614 CCSRCH101J50

R 909 RD1/4PU103J C 628 CCSRCH150J50
R 910 RS1/16S0R0J C 629 CCSRCH150J50
R 911 RS1/16S122J C 630 CKSRYB473K16
R 912 RD1/4PU103J C 631 CEAL2R2M50

R 913 RS1/16S101J C 650 CKSRYB104K16

R 914 RD1/4PU152J C 901 CEJA101M10
R 916 RS1/16S221J C 902 CKSRYB473K16
R 918 RS1/16S1R0J C 903 470µF/16V CCH1331
R 944 RD1/4PU152J C 904 CKSRYB473K16

R 971 (DEH-1350/X1M/ES) RS1/16S103J C 905 330µF/16V CCH1326

R 981 RS1/16S472J C 906 CKSRYB103K50
R 982 RS1/16S222J C 907 CEJA101M16
R 983 RD1/4PU221J C 941 CKSRYB473K16
R 984 RD1/4PU221J C 971 (DEH-1350/X1M/ES) CKSRYB103K50

CAPACITORS C 972 (DEH-1350/X1M/ES) CKSRYB473K16

C 981 CEJA101M10
C 310 CKSRYB105K6R3 C 982 CKSRYB102K50
C 311 CKSRYB104K16 C 983 CKSRYB473K16
C 313 CKSRYB105K6R3
C 314 CKSRYB104K16 Unit Number : CWM7303(DEH-2350/X1M/ES)
C 315 CKSRYB102K50 B : CWM7307(DEH-1350/X1M/ES)
C 316 CKSRYB102K50 Unit Name : Keyboard Unit
C 330 CEJA470M10
C 331 CEJA100M16 MISCELLANEOUS
C 332 CKSRYB104K16
C 333 CEJA4R7M35 IC 1801 IC PD6340A
D 1701 LED SML210PT
C 334 CEJA4R7M35 D 1702 LED SML210PT
C 336 CKSRYB153K25 D 1703 LED SML210PT
C 337 CKSRYB153K25 D 1704 LED SML210PT
C 340 CEAL2R2M50
C 341 CEJA2R2M50 D 1705 LED SML210PT
D 1706 LED SML210PT
C 346 CCSRCH100D50 D 1707 LED SML210PT
C 347 CCSRCH100D50 D 1708 LED SML210PT
C 348 CCSRCH100D50 D 1801 Diode MA152WK
C 349 CCSRCH100D50
C 350 CEJA330M10 D 1802 Diode MA152WA
D 1811 LED NSSW440-9159
C 361 CEJA2R2M50 D 1812 LED NSSW440-9159
C 362 CKSQYB225K10 X 1801 Ceramic Resonator 4.97MHz CSS1422
C 363 CEJA100M16 IL 1801 Lamp 14V 40mA CEL1651
C 364 CKSQYB474K16
C 365 CKSQYB474K16 IL 1802 Lamp 14V 40mA CEL1651
LCD(DEH-2350/X1M/ES) CAW1606
LCD(DEH-1350/X1M/ES) CAW1633

33
DEH-2350,1350

=====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ ------------------------- --- ------ ------------------------------------------ -------------------------
RESISTORS CAPACITORS
R 1701 RS1/16S151J C 101 CKSRYB102K50
R 1702 RS1/16S181J C 102 CKSRYB104K16
R 1703 RS1/16S181J C 103 CEV101M6R3
R 1704 RS1/16S181J C 104 CEV470M6R3
R 1705 RS1/16S181J C 105 CKSQYB334K16

R 1706 RS1/16S151J C 106 CKSQYB334K16

R 1707 RS1/16S151J C 107 CKSQYB334K16
R 1708 RS1/16S151J C 201 CKSRYB104K16
R 1709 RS1/16S181J C 202 CKSRYB471K50
R 1710 RS1/16S151J C 203 CKSRYB104K16

R 1711 RS1/16S181J C 205 CEV101M6R3

R 1712 RS1/16S151J C 206 CKSRYB104K16
R 1713 RS1/16S131J C 207 CKSRYB104K16
R 1801 RS1/16S222J C 208 CKSRYB104K16
R 1802 RS1/16S222J C 209 CKSRYB104K16

R 1803 RS1/16S471J C 210 CKSRYB332K50

R 1804 RS1/16S471J C 211 CKSRYB104K16
R 1805 RS1/16S471J C 212 CKSRYB104K16
R 1806 RS1/16S471J C 213 CKSRYB392K50
C 214 CKSRYB104K16
CAPACITORS
C 215 CKSRYB104K16
C 1801 CKSRYB103K50 C 216 CCSRCJ3R0C50
C 1811 CKSQYF104Z25 C 217 CCSRCH270J50
C 1812 CKSQYF104Z25 C 218 CKSRYB104K16
C 219 CCSRCH181J50
Unit Number : CWX2411
C Unit Name : Control Unit C
C
220
221
CCSRCH510J50
CKSRYB682K25
C 222 CEV220M6R3
MISCELLANEOUS C 223 CKSRYB103K25
C 224 CKSRYB224K10
IC 201 IC UPD63711GC
IC 301 IC BA5985FM C 301 CEV101M10
IC 701 IC BA05SFP C 603 CCSQSL152J50
Q 101 Transistor 2SB1132 C 604 CCSQSL152J50
D 801 LED CL203IRXTU C 702 10µF/10V CCH1349
C 703 CKSQYB334K16
D 802 LED CL203IRXTU
X 201 Ceramic Oscillator 16.934MHz CSS1456
Unit Number :
S
S
801
802
Spring Switch(HOME)
Spring Switch(CLAMP)
CSN1051
CSN1052 D Unit Name : Photo Unit(S8)
RESISTORS Q 1 Photo-transistor CPT230SX-TU
Q 2 Photo-transistor CPT230SX-TU
R 101 RS1/8S120J
R 102 RS1/8S100J Miscellaneous Parts List
R 103 RS1/16S222J
R 201 RS1/16S104J Pickup Unit(Service)(P8) CXX1285
R 202 RS1/16S103J M 1 Motor Unit(CARRIAGE) CXB2190
M 2 Motor Unit(LOADING) CXB2195
R 203 RS1/16S393J M 3 Motor Unit(SPINDLE) CXB2562
R 204 RS1/16S103J Fuse(10A) CEK1136
R 205 RS1/16S103J
R 206 RS1/16S182J
R 207 RS1/16S123J

R 302 RS1/16S153J
R 303 RS1/16S103J
R 501 RS1/16S102J
R 502 RA4C681J
R 601 RS1/16S102J

R 602 RS1/16S102J
R 605 RS1/16S0R0J
R 606 RS1/16S0R0J
R 801 RS1/8S751J
R 803 RS1/8S751J

R 902 RS1/16S0R0J
R 906 RS1/16S0R0J

34
 DEH-2350,1350

6. ADJUSTMENT
6.1 CD ADJUSTMENT
1) Precautions 2) Test Mode
• This unit uses a single power supply (+5V) for the reg- This mode is used for adjusting the CD mechanism
ulator. The signal reference potential, therefore, is module of the device.
connected to REFO(approx. 2.5V) instead of GND.
If REFO and GND are connected to each other by mis- • Test mode starting procedure
take during adjustments, not only will it be impossi- Reset while pressing the 4 and 6 keys together.
ble to measure the potential correctly, but the servo
will malfunction and a severe shock will be applied to • Test mode cancellation
the pick-up. To avoid this, take special note of the fol- Switch ACC, back-up OFF.
lowing.
Do not connect the negative probe of the measuring • After pressing the EJECT key, do not press any other
equipment to REFO and GND together. It is especially key until the disk is completely ejected.
important not to connect the channel 1 negative
probe of the oscilloscope to REFO with the channel 2 • If the ] or [ key is pressed while focus search is in
negative probe connected to GND. progress, immediately turn the power off (otherwise
Since the frame of the measuring instrument is usual- the actuator may be damaged due to adhesion of the
ly at the same potential as the negative probe, change lenses).
the frame of the measuring instrument to floating sta-
tus. • Jump operation of TRs other than 100TR continues
If by accident REFO comes in contact with GND, after releasing the key. CRG move and 100TR jump
immediately switch the regulator or power OFF. operations are brought into the “Tracking close” sta-
tus when the key is released.
• Always make sure the regulator is OFF when connect-
ing and disconnecting the various filters and wiring • Powering Off/On resets the jump mode to “1TR”, and
required for measurements. the automatic adjustment value to the initial value.

• Before proceeding to further adjustments and mea-

surements after switching regulator ON, let the player
run for about one minute to allow the circuits to stabi-
lize.

• Since the protective systems in the unit's software are

rendered inoperative in test mode, be very careful to
avoid mechanical and /or electrical shocks to the sys-
tem when making adjustment.

• Disc detection during loading and eject operations is

performed by means of a photo transistor in this
unit.Consequently, if the inside of the unit is exposed
to a strong light source when the outer casing is
removed for repairs or adjustment, the following mal-
functions may occur.
*During PLAY, even if the eject button is
pressed,the disc will not be ejected and the unit
will remain in the PLAY mode.
*The unit will not load a disc.
When the unit malfunctions this way, either re-posi-
tion the light source, move the unit or cover the photo
transistor.

35
DEH-2350,1350

- Flow Chart

4 6
Test Mode In
Reset

Select CD SOURCE

New test mode

BAND 3 6

Power ON
(Adjustment for T.Offset)
Power ON
TRK MIN SEC
(Not adjustment for T.Offset)
Display 00 00 00 TRK MIN SEC

Display 99 99 99
Power OFF

BAND 3 6 1 ] [ 2

Focus Close/ *1 Focus Mode *2 *3

S Curve Check Select Auto Adjustment
<Tracking Servo Close> CRG+ CRG-
Display Select
TRK MIN SEC TRK MIN SEC TRK MIN SEC TRK MIN SEC TRK MIN SEC

Display
91 91 91 Display 0x 0x 0x 00 00 00 00 00 00 00 00 00
or or or
TRK MIN SEC TRK MIN SEC TRK MIN SEC

99 99 99 99 99 99 99 99 99
Power OFF

BAND 1 6 3 ] [ 2

T.Close and
F,T AGC and T. Close and RF AGC Coefficient Display/ CRG+ CRG- T.Balance
RF AGC and Fit Servo Rough Servo and RF AGC Adjustment
Fit Servo TRK MIN SEC TRK MIN SEC

Display 8x 8x 8x 8x 8x 8x
or or
TRK MIN SEC TRK MIN SEC

9x 9x 9x 9x 9x 9x

Tracking
Power OFF Open

BAND 1 3 6 ] [ 2
*4 *5 *6 CRG-/TR Jump- *6
F, T, RF AGC/ F, T AGC and CRG/TR Jump NO. CRG+/TR Jump+ *7
F.Bias Display Select RF AGC Select TRK MIN SEC

Power OFF
Display
8x 8x 8x
or
BAND TRK MIN SEC
2
9x 9x 9x
Tracking
Open
TRK MIN SEC

Display 8x 8x 8x
or
TRK MIN SEC

9x 9x 9x

*1 "00", "99"→Focus Close / "01"→S.Curve *6 1TR/4TR/10TR/32TR/100TR

*2 Focus Close S.Curve LD Off *7 CRG Move,100TR Jump

00(99) 01 02

*3 F.Cancel T.Offset The original display

*4 TRK, MIN, SEC F.AGC Gain T.AGC Gain F.Bias

*5 1TR 4TR 10TR 32TR 100TR CRG Move

91(81) 92(82) 93(83) 94(84) 95(85) 96(86)

36
 DEH-2350,1350

6.2 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT

• Note :
The grating angle of the PU unit cannot be adjusted after the PU unit is changed. The PU unit in the CD mecha-
nism module is adjusted on the production line to match the CD mechanism module and is thus the best adjusted
PU unit for the CD mechanism module. Changing the PU unit is thus best considered as a last resort. However, if
the PU unit must be changed, the grating should be checked using the procedure below.

• Purpose :
To check that the grating is within an acceptable range when the PU unit is changed.

• Symptoms of Mal-adjustment :
If the grating is off by a large amount symptoms such as being unable to close tracking, being unable to perform
track search operations, or taking a long time for track searching.

• Method :
• Measuring Equipment • Oscilloscope, Two L.P.F.
• Measuring Points • E, F, REFOUT
• Disc • ABEX TCD-784
• Mode • TEST MODE

CONTROL UNIT

E
F L.P.F.

Xch Ych
E 100kΩ
Oscilloscope
REFO 390pF

F 100kΩ

390pF
REFO REFO

L.P.F.

• Checking Procedure
1. In test mode, load the disc and switch the 5V regulator on.
2. Using the ] and [ buttons, move the PU unit to the innermost track.
3. Press key 3 to close focus, the display should read "91". Press key 2 to implement the tracking balance adjust-
ment the display should now read "81". Press key 3 2 times. The display will change, returning to "81" on the
fourth press.
4. As shown in the diagram above, monitor the LPF outputs using the oscilloscope and check that the phase differ-
ence is within 75° . Refer to the photographs supplied to determine the phase angle.
5. If the phase difference is determined to be greater than 75° try changing the PU unit to see if there is any
improvement. If, after trying this a number of times, the grating angle does not become less than 75° then the
mechanism should be judged to be at fault.
• Note
Because of eccentricity in the disc and a slight misalignment of the clamping center the grating waveform may be
seen to "wobble" ( the phase difference changes as the disc rotates). The angle specified above indicates the aver-
age angle.

• Hint
Reloading the disc changes the clamp position and may decrease the "wobble".

37
DEH-2350,1350

Grating waveform Ech → Xch 20mV/div, AC

Fch → Ych 20mV/div, AC

0° 30°

45° 60°

75° 90°

38
 DEH-2350,1350

7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 TEST MODE
- Error Messages
If a CD is not operative or stopped during operation due to an error, the error mode is turned on and cause(s) of the
error is indicated with a corresponding number. This arrangement is intended at reducing nonsense calls from the
users and also for facilitating trouble analysis and repair work in servicing.

(1) Basic Indication Method

1) When SERRORM is selected for the CSMOD (CD mode area for the system), error codes are written to DMIN (min-
utes display area) and DSEC (seconds display area). The same data is written to DMIN and DSEC. DTNO remains
in blank as before.

2) Head unit display examples

Depending on display capability of LCD used, display will vary as shown below. xx contains the error number.

8-digit display 6-digit display 4-digit display

ERROR–xx ERR–xx E–xx
OR
Err–xx

(2) Error Code List

Code Class Displayed error code Description of the code and potential cause(s)
10 Electricity Carriage Home NG CRG can't be moved to inner diameter.
CRG can't be moved from inner diameter.
→ Failure on home switch or CRG move mechanism.
11 Electricity Focus Servo NG Focusing not available.
→ Stains on rear side of disc or excessive vibrations on REWRITABLE.
12 Electricity Spindle Lock NG Spindle not locked. Sub-code is strange (not readable).
→ Failure on spindle, stains or damages on disc, or excessive vibrations.
Subcode NG A disc not containing CD-R data is found. Turned over disc are found,
though rarely.
→ Failure on home switch or CRG move mechanism.
RF AMP NG An appropriate RF AMP gain can't be determined.
→ CD signal error.
17 Electricity Setup NG APC protection doesn't work. Focus can be easily lost.
→ Damages or stains on disc, or excessive vibrations.
30 Electricity Search Time Out Failed to reach target address.
→ CRG tracking error or damages on disc.
A0 System Power Supply NG Power (VD) is ground faulted.
→ Failure on SW transistor or power supply (failure on connector).
Remarks: Mechanical errors are not displayed (because a CD is turned off in these errors).
Unreadable TOC does not constitute an error. An intended operation continues in this case.
A newly designed head unit must conform to the example given above.
Upper digits of an error code are subdivided as shown below:
1x: Setup relevant errors, 3x: Search relevant errors, 3x: Search relevant errors, Ax: Other errors.

39
DEH-2350,1350

- New Test Mode

S-CD plays the same way as before.
If an error such as off focus, spindle unlocking, unreadable sub-code, or sound skipping occurs after setup, its
cause and time occurred (in absolute time) are displayed.
During setup, operational status of the control software (internal RAM: CPOINT) is displayed.
These displays and functions are prepared for enhancing aging in the servicing and efficiency of trouble analysis.

(1) Shifting to the New Test Mode

1 Turn on the current test mode by starting the reset from the key.
2 Select S-CD for the source through the specified procedure including use of the [SOURCE] key, and inserting the
disc. Then, press the [Jump Mode Selector] key while maintaining the regulator turned off.
3 After the above operations, the new test mode remains on irrespective of whether the S-CD is turned on or off.
You can reset the new test mode by turning on the reset start.
* With some products, the new test mode can be reset through the same operations as that employed for shifting to
the STBY mode (while maintaining the Acc turned off).

(2) Key Correspondence

Key Test mode New test mode
(Example) Power Off Power On In-play Error Production
BAND To power on To power off – Time/Err.No. switching
(offset adjustment performed)
] – FWD-Kick FF/TR+ –
[ – REV-Kick REV/TR- –
1 – T.Close (AGC performed) Scan –
/parameter display switching
2 – T.BAL adjustment Mode –
/T.Open
3 To power on F.Close/RF AGC/AGC – –
(offset adjustment not performed)
6 – Mode switching Auto/Manu –
/T.Close (no AGC)/Jump switching
Note: Eject and CD on/off is performed in the same procedure as that for the normal mode.

(3) Cause of Error and Error Code

Code Class Contents Description and cause
40 Electricity Off focus detected. FOK goes low.
→ Damages/stains on disc, vibrations or failure on servo.
41 Electricity Spindle unlocked. FOK = Low continued for 50 msec.
→ Damages/stains on disc, vibrations or failure on servo.
42 Electricity Sub-code unreadable. Sub-code was unreadable for 50 msec.
→ Damages/stains on disc, vibrations or failure on servo.
43 Electricity Sound skipping detected. Last address memory function was activated.
→ Damages/stains on disc, vibrations or failure on servo.
Note: Mechanical errors during aging are not displayed.
The error codes should be indicated in the same way as in the normal mode.

40
 DEH-2350,1350

(4) Display of Operational Status (CPOINT) during Setup

Status No. Contents Protective action
01 Carriage move to home position started. None
02 Carriage is moving toward inner diameter. Specified 10 seconds has been passed or failure
on home switch.
03 Carriage is moving toward outer diameter. Specified 10 seconds has been passed or failure
on home switch.
05 Carriage outer diameter feed (1 second) in progress. None
11 Setup started. None
12 Spindle rotation and focus search started. None
13 Waiting for focus close (XSI=Low). Specified focus search time has been passed.
14 Waiting for focus close (FOK=High). (After AGC) Specified focus search time has been passed.
15 Waiting for focus close (FOK=High). (Before AGC) Specified focus search time has been passed.
16 Rough AGC in progress. Off focus.
17 Setup (1/2) before T balance adjustment is started. Off focus.
18 Setup (2/2) before T balance adjustment is started. Off focus.
24 T balance adjustment (1/2). Off focus.
25 T balance adjustment (2/2). Off focus.
26 Standing by after spindle rough servo is over. Off focus.
27 Setup before RF AGC (first) is started. Off focus.
28 RF AGC (first) in progress. Off focus.
29 Setup before RF AGC (second) is started. Off focus.
30 RF AGC (second) in progress. Off focus.
31 Tracking close in progress. Off focus.
32 Standing by after tracking is closed. Off focus.
33 Focus AGC started. Off focus.
34 Focus AGC in progress. Tracking AGC started. Off focus.
35 Tracking AGC in progress. Off focus.
Spindle processes applicable servo.
36 Check of MIRR and LOCK pin. RF AGC in progress. Off focus. Spindle not locked.
CRG close in progress. Check of sub-code. Sub-code unreadable.

(5) Display Examples

1) During Setup (When status no. = 11)
TRK No. MIN. SEC.
11 11' 11"

2) During Operation (TOC read, TRK search, Play, FF and REV)

The same as in the normal mode.

3) When a Protection Error Occurred

Switch to the following displays (A) and (B) using the [BAND] switch:

(A) Error occurrence timing display in absolute time.

An example: Error occurred in 12th tune at 34'56" in absolute time.

TRK No. MIN. SEC.

12 34' 56"

(B) Error No. display

An example: Error #40 (Off focus is detected)
ERROR-40

41
DEH-2350,1350

7.1.2 DISASSEMBLY
- Removing the Case Unit (not shown)
1. Remove the Case Unit.

- Removing the CD Mechanism Module (Fig.1)

Remove the four screws.

Disconnect the connector and then remove the CD

Mechanism Module (not shown).

- Removing the Panel Assy (not shown)

1. Disconnect the two stoppers and then remove the
Panel Assy.

Fig.1
CD Mechanism Module

Cover
- Removing the Tuner Amp Unit

Remove the three screws and then remove

the Cover. (Fig.2)

Remove the two screws. (Fig.2)

Fig.2
Remove the screw. (Fig.3)

Straight the tabs at fore locations indicated

and then remove the Tuner Amp Unit.
(Fig.3)

Fig.3
Tuner Amp Unit

42
 DEH-2350,1350

- Removing the Upper Frame

A
1. Remove six Springs A, two Springs B and four Upper Frame
Screws. A
2. Remove two Tabs situated on rear side of the Upper
Frame, remove two Arms on the front side, then A

remove two Tabs on the front side.

B A

Arm A

Arm

B A

- Removing the Carriage Mechanism

Carriage Mechanism Section
1. Disengage the Carriage Mechanism from the two
dampers situated in the front side by driving it up,
then disengage and remove the mechanism from the
one damper by driving it up aslant into front side
direction.
Note : When assembling the Carriage Mechanism, coat
the dampers with alcohol prior to the assembly.

- Removing the Clamp Arm Assy A Clamp Arm Assy Section

1. Remove a Spring A, a B and a Spring C.
B
2. Drive the Clamp Arm Assy up into rear side direction,
then disengage the arm from its current position
Finally, drive the assembly approximately 45 degrees
upward, then slide the assembly toward right side to
remove it.

43
DEH-2350,1350

- Removing the Guide Arm Assy

1. Remove a connector, a spring A and B
2. Drive the Guide Arm Assy up aslant into rear side Guide Arm Assy Section
direction, then remove it from a Pin. Finally, drive the
assembly approximately 45 degrees upward, then A
slide the assembly toward left side to remove it.
Note : When assembling the guide arm assembly, route
the cord inside the assembly. In this operation,
care must be exercised so that cord may be
caught by the gear.
B
Pin

LO Arm Assy Section

- Removing the LO Arm Assy
1. Remove two Pins to dismount the LO Arm Assy.

- Removing the Control Unit and the Spindle Short Pin

Motor
1. Remove from the connector after mounting the short Spindle Motor
pin on the flexible PCB of the pickup unit.
2. Remove two Soldered joints, then remove two
B
Screws A.
3. Remove two connectors and a Screw B.
4. Disengage the Control Unit from two Tabs, then dis-
mount the unit by sliding it toward left.
5. Dismount the Spindle Motor.
Control Unit

A A

44
 DEH-2350,1350

- Removing the Loading Motor and Carriage

C
Motor Guide
1. Remove the Spring and two Screws A.
2. Dismount the Loading Motor.
B
3. Remove the Belt, a Screw B, two Screws C, a Guide
and a Screw Unit. Screw Unit Carriage Motor
4. Dismount the Carriage Motor.
Note : When assembling the Belt, use care so that it
may not be contaminated by grease. Belt
C

A
A

Loading Motor

- Removing the Pickup Unit

1. Remove two Screws and a Shaft.
2. Dismount the Pickup Unit.

Pickup Unit

Shaft

45
DEH-2350,1350

7.1.3 CONNECTOR FUNCTION DESCRIPTION

PRE OUT ANTENNA

15 13 11 9 7 5 3 1

16 14 12 10 8 6 4 2

1. BACK UP
2. GND
3. NC
4. ACC
5. B.REM
6. NC
7. NC
8. NC
9. FL-
10. RL-
11. FL+
12. RL+
13. FR-
14. RR-
15. FR+
16. RR+

46
 DEH-2350,1350

7.2 PARTS
7.2.1 IC
- Pin Functions(PE5196A)
Pin No. Pin Name I/O Format Function and Operation
1 MODEL1 I Model select input
2 NL1 I Noise level input
3 NL2DT I Noise level input 2
4 AVSS AVSS
5 ST I Stereo input
6 SD I SD signal input
7 AREF1 AVREF1
8 KYDT I Key data input
9 DPDT O C Key data output
10 SDBW I SDBW input
11 TUNPDI I PLL IC data input
12 TUNPDO O C PLL IC data output
13 TUNPCK O C PLL IC clock output
14 TUNPCE O C PLL IC chip enable output
15 currq O C Tuner voltage FIX output
16 XSI I C CD LSI serial data input(TSI)
17 XSO O C CD LSI serial data output(TSO)
18 XSCK O C CD LSI serial clock output(TSCK)
19 drst O C RDS decoder reset output
20 ADPW O C A/D converter power output
21 fm/AM O C Tuner power supply control output
22 VDCONT O C VD power supply control output
23 CONT O C Servo driver power control output
24 XAO O C CD LSI command / data control output
25 xrst O C CD LSI reset control output
26 xstb O C CD LSI strobe output
27 CLAMP I Disc clamp sense input
28 MIRR I Mirror detection input
29 FOK I Focus OK signal input
30 LOCK I Spindle lock detector input
31 CDLOAD O LOAD motor loading control output
32 TELIN I Cellular mute input
33 VSS VSS
34 CDEJECT O LOAD motor eject control output
35 CD5VON O C CD +5V power supply control output
36–39 NC Not used
40 RECIEVE O C RDS decoder receiving output
41 swvdd O C Grille microcomputer power supply control output
42 SYSPW O C System power supply control output
43 ILMPW O C Illumination power output
44 mute O C Mute output
45 PEE O C Beep tone output
46 LOCH O C LOCH output
47 RDS57K I 57kHzBP-OUT sense input
48 TUNPCE2 O C EEPROM chip enable output
49 PCL O C Test mode clock adjustment output
50 VCK O C Clock output for electronic volume
51 VDT O C Data output for electronic volume
52 ANTPW O Antenna power output
53 VST O Strobe pulse output for electronic volume
54 DALMON O Stand-by output
55,56 NC Not used
57 LOCL O LOCL output
58 rdslk I RDSLK input

47
DEH-2350,1350

Pin No. Pin Name I/O Format Function and Operation

59 RDT I RDS data input
60 reset Reset
61 LDET I PLL lock detection input
62 RCK I RDS clock input
63 asens I ACC power sense input
64 bsens I Back up power sense input
65 dsens I Grille detach sense input
66 TMUTE O C Tuner mute output
67 NC Not used
68 VDD VDD
69 X2 Crystal oscillator connection pin
70 X1 Crystal oscillator connection pin
71 IC(VPP) IC(VPP)
72 NC Not used
73 TESTIN I Test program mode input
74 AVDD AVDD
75 AVREF0 AVREF0
76 SL I Signal level input
77 TEMP I Temperature detection input
78 VDSENS I VD power supply sense input
79 DINC I Disc detection input
80 EJTD I Disc eject position detect input

IC's marked by* are MOS type.

Output Format Meaning Be careful in handing them because they are very liable
C C MOS output
to be damaged by electrostatic induction.
*PE5196A

80 61
1 60

S-80834ANY

20 41

21 40

1 2 3
OUT VDD VSS

48
 DEH-2350,1350

- Pin Functions (PD6340A)

Pin No. Pin Name I/O Function and Operation
1-5 SEG4-0 O LCD segment output
6-9 COM3-0 O LCD common output
10 VLCD LCD drive power supply
11-14 KST3-0 O Key strobe output
15,16 KDT0,1 I Key data input (analogue input)
17 REM I Remote control reception
18 DPDT I Display data input
19 NC Not used
20 KYDT O Key data output
21 MODA GND
22 X0 Crystal oscillator connection pin
23 X1 Crystal oscillator connection pin
24 VSS GND
25,26 KDT2,3 I Key data input
27 NC Not used
28 KST4 O Key strobe output
29-32 NC Not used
33-55 SEG35-13 O LCD segment output
56 VDD Power supply
57-64 SEG12-5 O LCD segment output

*PD6340A
33

48

32 49

17 64
16

49
DEH-2350,1350

- Pin Functions (UPD63711GC)

Pin No. Pin Name I/O Function and Operation
1 D.GND Logic circuit GND
2 RFOK O RFOK signal output
3 rst I Reset signal input
4 A0 I Command/parameter identification signal input
5 stb I Data strobe signal input
6 sck I Clock signal input for serial data input/output
7 SO O Serial data and status signal output
8 SI I Serial data input
9 xtalen I Crystal oscillation control pin
10 D.VDD Positive power supply terminal to logic circuit
11 DA.VDD Positive power supply terminal to D/A converter
12 R_OUT O Right channel audio output signal
13 DA.GND D/A converter GND
14 REGC I The outside putting capacitor connection pin for SCF regulator
15 DA.GND D/A converter GND
16 L_OUT O Left channel audio output signal
17 DA.VDD Positive power supply terminal to D/A converter
18 R+ O Right channel audio data output
19 R- O Right channel audio data output
20 L- O Left channel audio data output
21 L+ O Left channel audio data output
22 X.VDD Positive power supply terminal to crystal oscillation circuit
23 XTAL I Crystal oscillator connect pin
24 xtal O Crystal oscillator connect pin
25 X.GND Crystal oscillation circuit GND
26 D.VDD Positive power supply terminal to logic circuit
27 EMPH O Output pin for the pre-emphasis data in the sub-Q code
28 FLAG O Flag output pin to indicate that audio data currently being output consists
of noncorrectable data
29 DIN I Serial data input to internal DAC
30 DOUT O Serial audio data output
31 SCKIN I Serial clock input to internal DAC
32 SCKO O Audio data that is output from DOUT changes at rising edge of this clock
33 LRCKIN I LRCK signal input to internal DAC
34 LRCK O Signals to distinguish the right and left channels of the audio data output
from DOUT
35 HOLD O Defect detection output
36 TX O Digital audio interface data output
37 D.GND Logic circuit GND
38 C16M O Oscillator clock buffering output
39 LIMIT I Status of the pin is output at Bit 5 of the status output
40 D.VDD Positive power supply terminal to logic circuit
41 LOCK O EFM synchronous detection signal
42 RFCK O Frame synchronous signal of XTAL-system
43 MIRR O MIRR output
44 PLCK O Monitor pin of bit clock
45 D.GND Logic circuit GND
46 C1D1 O Output pin for indicating the C1 error correction results
47 C1D2 O Output pin for indicating the C1 error correction results
48 C2D1 O Output pin for indicating the C2 error correction results
49 C2D2 O Output pin for indicating the C2 error correction results
50 C2D3 O Output pin for indicating the C2 error correction results
51 D.VDD Positive power supply terminal to logic circuit
52 PACK O CD-TEXT PACK synchronous signal
53 TSO O CD-TEXT data serial output
54 TSI I CD-TEXT control parameter serial input
55 tsck I CD-TEXT serial clock input
56 TSTB I CD-TEXT parameter strobe signal input
57 D.GND Logic circuit GND

50
 DEH-2350,1350

Pin No. Pin Name I/O Function and Operation

58 TEST0 I Test pin
59 TEST1 I Test pin
60 ATEST O Test pin
61 A.GND Analog circuit GND
62 FD O Focus drive output
63 TD O Tracking drive output
64 SD O Sled drive output
65 MD O Spindle drive output
66 DAC0 O DAC output for adjustment
67 DAC1 O DAC output for adjustment
68 DAC2 O DAC output for adjustment
69 DAC3 O DAC output for adjustment
70 A.VDD Positive power supply terminal to analog circuit
71 EFM O EFM signal output
72 ASY I EFM comparator reference voltage input
73 C3T 3T detection capacitor additional pin
74 RFI I RF signal input for EFM data regulation
75 AGCO O RF signal output of after gain adjustment
76 AGCI I RF-AGC amplifier input
77 RFO O RF summing amplifier output
78 EQ2 RF amplifier equalizer parts additional pin
79 EQ1 RF amplifier equalizer parts additional pin
80 RF- I RF summing amplifier inverted input
81 A.GND Analog circuit GND
82 A I Photo detector A input
83 C I Photo detector C input
84 B I Photo detector B input
85 D I Photo detector D input
86 F I Photo detector F input
87 E I Photo detector E input
88 A.VDD Positive power supply terminal to analog circuit
89 REFOUT O Reference electric potential output
90 FE- I Focus error amplifier inverted input
91 FEO O Focus error amplifier output
92 TE- I Tracking error amplifier inverted input
93 TEO O Tracking error amplifier output
94 TE2 O Tracking error output of after amplification
95 TEC I Tracking comparator input
96 A.GND Analog circuit GND
97 PD I PD detection signal input for LD output monitor
98 LD O LD control current output
99 PN I APC circuit control polarity set pin
100 A.VDD Positive power supply terminal to analog circuit
*UPD63711GC
20
25

1
1

26
21 100
80

50
40 76
61
51

75
41

60

51
DEH-2350,1350

PAL006A

sw_vcc
Protector;
Over voltage
1

TAB Reference
amp_vcc

Stand-by
2

P-GND2 Circuit

+-
3

OUT2-

1CM
Offset Protector;
4

STBY Detection Thermal

-+
5

OUT2+
6

VCC

+-
7

OUT1-

1CM
Offset
8

P-GND1 Detection

-+
9

OUT1+
10

SVR
11

IN1
12 13

IN2
amp_vcc

Protector;
S-GND Short circuit
14

IN4
15

IN3
16

AC-GND
17

+-

OUT3+
1CM
18

Offset
P-GND3 Detection
19

-+

OUT3-
20 21

VCC
+-

OUT4+
1CM
22

Offset
MUTE Detection
23

-+

OUT4-
24 25

P-GND4

SWITCH
sw_vcc
stby

Protector;
Over current limit

Mute circuit

52
 DEH-2350,1350

FM/AM TUNER UNIT

FM/AM 1ST IF 10.7MHz MPXREF 41kHz
AMRF T51 Q51 CF51 CF52 CF53 AMDET
AMANT
28 ATT L ch
IC 2 FM MPX 6
R ch
5

ANT ADJ IC1 COMP

21
MIXER, IF AMP, DET. LDET
18
FMANT
27 ATT
RFGND
26 FMRF
CF202

IC 3
IMG ADJ AM 2ND IF X901 EEPROM
450kHz 10.25MHz

FMLOCL
VDD

STIND
SDBW
DGND

FMSD
DI/DO
CREQ
VCC
RF ADJ

NL1
NL2
CE2

CE1
WC

NC
NC
NC

CK

SL
LOCH LOCL
23 25 7 17 20 22 10 19 14 24 9 11 12 15 16 8 13 2 3 4 1

No. Symbol I/O Explain

1 STIND O stereo "Low" when the FM stereo signals are received.
indicator To be pulled up to the "VDD" at 47kΩ.
2 FMSD O FM station "High" when signals are received. To be pulled up to the "VDD" at 47kΩ
detector Meanwhile, 10kΩ should be used when taking diver FIX trigger from here
and "High: 0.9VDD or more" and "Low: 250mV or less".
(Should satisfy the diver IC specifications)
3 NL1 O noise level-1 "High" when noise is received. Output for the RDS. GND at 47kΩ //1,800pF.
4 NL2 O noise level-2 "High" when noise is received. Output for the RDS. GND at 36kΩ //330pF.
5 Rch O R channel FM stereo "R-ch" signal output or AM audio output.
output Add the specified di-emphasis constant.
6 Lch O L channel FM stereo "L-ch" signal output or AM audio output.
output Add the specified di-emphasis constant.
7 WC write control EEPROM write control. Writing permissible at "Low". Normally open.
8 SDBW O SD bandwidth SD bandwidth signal output. For detection of detuning data for the RDS.
9 NC Not used
10 VDD power Power supply pin for the digital section.
supply D.C. 5V +/- 0.25V. Be careful about overlapping noise in the logic section.
11 DGND digital ground Grounding for the digital section.
12 CE2 I chip enable-2 EEPROM chip enable. Active a "Low"
To be pulled up to the "VDD" at 47kΩ
13 SL I/O signal level Received FM/AM signal level (strength) output.
Connect the specified load resistor and capacitor (10k Ω + 39k Ω //4,700pF)
14 DI/DO I/O data input/ Data input/Data output
data output To be pulled up to the "VDD" at 47kΩ
15 CK I clock Clock input To be pulled up to the "VDD" at 47kΩ
16 CE1 I chip enable-1 AF·RF chip enable. Active at "High" To be grounded at 47kΩ
17 NC Not used
18 LDET O lock detector Active at "Low". To be pulled up to the "VDD" at 47kΩ
19 CREQ I current request Active at "Low". To be grounded at 47kΩ
20 NC Not used
21 COMP O composite signal FM composite signal output. r out < 100Ω
22 VCC power supply Analog section power supply pin.D.C.8.4V +/- 0.3V
23 LOCH I local high FM local high pin. When seeking local high, apply 5V together with "LOCL".
24 FMLOCL I FM local low FM local low pin. When seeking local low, apply 5V to the base of the NPN
transistor with which the specified resistor is being connected to the emitter.
Keep it open in case of ordinary marketed models.
25 LOCL I local low FM/AM local low pin. When seeking local low, apply 5V to the base of the
NPN transistor. Since this pin is exclusive for AM when the FMLOCL is in use,
do not drive it under FM.
26 RFGND RF ground Grounding for the antenna section.
27 FMANT I FM antenna input FM antenna input. 75Ω. Serge absorber (DSP-201M-S00B) is necessary.
28 AMANT I AM antenna input AM antenna input. High impedance.
Connect to the antenna through an L (LAU type) of 4.7µH.To cope with the
power transmission line hums, insert a series circuit consisting of an L
(a coil of about 100mH) + R (a resistor of 470 Ω to 2.2kΩ) between the GND.

53
 54
COM3A COM3A 50
COM2A COM2A 49
COM1A COM1A 48
COM2B COM2B
47
COM0A COM0A 46
COM2C COM2C
COMMON

45
SEGMENT

COM3B COM3B 44
COM2D COM2D 43
COM1B COM1B 42
COM0B COM0B 41
SEG39 40
SEG38 39
SEG37 38
SEG35 37
SEG34 36
SEG33 35
SEG32
34
SEG31 33
SEG30 32
SEG29
31
SEG28 30
SEG27 29
SEG26
28
SEG25
27
SEG24
26
SEG23
25
SEG22
24
SEG21 23
SEG20 22
SEG19 21
SEG18
20
SEG17
19
SEG16
18
SEG15 17
SEG14
16
SEG13 15
SEG12 14
SEG11 13
SEG10 12
SEG9 11
SEG8 10
SEG7 9
SEG6 8
SEG5 7
SEG4 6
SEG3
5
SEG2
4
NC
3
NC 2
SEG36 1
- CAW1606(DEH-2350/X1M/ES), CAW1633(DEH-1350/X1M/ES)
7.2.2 DISPLAY
DEH-2350,1350
 DEH-2350,1350

7.3 OPERATIONAL FLOW CHART

Power ON

VDD=5V
68pin

bsens
64pin

BSENS=L

asens
63pin

ASENS=L

dsens
65pin

DSENS=L
ADPW←H
20pin

Starts communication with Grille microcomputer.

300ms

SWVDD←L
41pin
300ms
In case of the above signal, the communication
Source keys with Grille microcomputer may fail.
operative If the time interval is not 300msec, the oscillator
may be defective.

Source ON

SYSPW←H
42pin

Completes power-on operation.(After that, proceed to each source operation.)

55
DEH-2350,1350

8. OPERATIONS AND SPECIFICATIONS

8.1 OPERATIONS

Key Finder

Head Unit

+/– buttons LOCAL/BSM button

EQ button CD loading slot EJECT button

AUDIO button
BAND button

LOUD button Detach button

Buttons 1–6 5/∞/2/3 buttons

SOURCE button CLOCK button

56
 Basic Operation
To Listen to Music Basic Operation of Tuner
The following explains the initial operations required before you can listen to music. Reset the AM tuning step from 9 kHz (the factory preset step) to 10 kHz when using the
Note: tuner in North, Central or South America.
• Loading a disc in this product. Manual and Seek Tuning
1. Select the desired source (e.g. Tuner). • You can select the tuning method by changing the length of time you
press the 2/3 button.
Manual Tuning (step by step) 0.5 seconds or less
Seek Tuning 0.5 seconds or more
Each press changes the Source ...

Note:
Each press of the SOURCE button selects the desired source in the following order: • If you continue pressing the button for longer than 0.5 seconds, you can skip broadcast
Built-in CD player = Tuner stations. Seek Tuning starts as soon as you release the button.
• Stereo indicator “” lights when a stereo station is selected.
Note:
• When no disc is set in this product, built-in CD player source will not change.
• When this product’s blue/white lead is connected to the car’s Auto-antenna relay control terminal,
the car’s Auto-antenna extends when this product’s source is switched ON. To retract the antenna,
switch the source OFF. Frequency Indicator

2. Raise or lower the volume. Band Indicator Preset Number Indicator

3. Turn the source OFF.

Preset Tuning Band

Hold for 1 second FM1 = FM2
• You can memorize broadcast stations in buttons 1
= FM3 = AM
through 6 for easy, one-touch station recall.
Preset station recall 2 seconds or less
Broadcast station preset memory 2 seconds or more

Note:
• Up to 18 FM stations (6 in FM1, FM2 and FM3) and 6 AM stations
can be stored in memory.
• You can also use the 5 or ∞ buttons to recall broadcast stations
memorized in buttons 1 through 6.

57
DEH-2350,1350
58
Basic Operation
Basic Operation of Built-in CD Player

Eject
Note:
CD Loading Slot • The CD function can be turned ON/OFF
DEH-2350,1350

with the disc remaining in this product.

Note: • A disc left partially inserted after ejection
• The built-in CD player plays one standard 12 cm may incur damage or fall out.
or 8 cm (single) CD at a time. Do not use an
adapter when playing 8 cm CD.
• Don’t insert any materials except for CD into CD
loading slot.

Track Number Indicator Play Time Indicator

Track Search and Fast Forward/Reverse

• You can select between Track Search or Fast Forward/Reverse by press-
ing the 2/3 button for a different length of time.
Track Search 0.5 seconds or less
Fast Forward/Reverse Continue pressing

Note:
• If a disc cannot be inserted fully or playback fails, make sure the recorded side is down.
Push the EJECT button and check the disc for damage before reinserting it.
• If a disc is inserted with the recorded side up, it will be ejected automatically after a few
moments.
• If the built-in CD player cannot operate properly, an error message (such as “ERR-14”)
appears on the display. Refer to “Built-in CD Player’s Error Message”.
 Connection Diagram

1. This product

2. Rear output 10. Power amp

(sold separately)
9. Connecting cords with RCA pin plugs
(sold separately)
4. Fuse
3. Antenna jack

8. Blue/white
5. Yellow To system control terminal of the power amp or Auto-antenna
To terminal always supplied relay control terminal (max. 300 mA 12 V DC).
with power regardless of
ignition switch position.

11. System remote control

6. Red
To electric terminal controlled
by ignition switch (12 V DC) ON/OFF.

7. Black (ground) 16. White 20. Gray

+ +
To vehicle (metal) body. 14. Front speaker (Left) 24. Front speaker (Right)
≠ ≠
17. White/black 21. Gray/black

18. Green 22. Violet

+ +
15. Rear speaker (Left) 25. Rear speaker (Right)
12. With a 2 speaker system, do not connect ≠ ≠
19. Green/black 23. Violet/black
anything to the speaker leads that are not
connected to speakers.

13. Perform these connections when using

a different amp (sold separately).
+ +
15. Rear speaker (Left) 25. Rear speaker (Right)
≠ ≠

59
DEH-2350,1350
DEH-2350,1350

8.2 SPECIFICATIONS

General CD player
Power source .......... 14.4 V DC (10.8 – 15.1 V allowable) System .................................... Compact disc audio system
Grounding system ........................................ Negative type Usable discs .................................................. Compact disc
Max. current consumption ...................................... 10.0 A Signal format .................... Sampling frequency: 44.1 kHz
Dimensions Number of quantization bits: 16; linear
(DIN) (chassis) ...... 178 (W) × 50 (H) × 159 (D) mm Frequency characteristics .............. 5 – 20,000 Hz (±1 dB)
(nose) ............ 188 (W) × 58 (H) × 19 (D) mm Signal-to-noise ratio ...... 94 dB (1 kHz) (IEC-A network)
(D) (chassis) ...... 178 (W) × 50 (H) × 164 (D) mm Dynamic range ............................................ 92 dB (1 kHz)
(nose) ............ 170 (W) × 48 (H) × 14 (D) mm Number of channels ............................................ 2 (stereo)
Weight ...................................................................... 1.4 kg
Electrode dark current .................................... 6mA or less FM tuner
Frequency range ...................................... 87.5 – 108 MHz
Amplifier Usable sensitivity ...................................................... 9 dBf
Continuous power output is 22 W per channel min. into 4 (0.8 µV/75 Ω, mono, S/N: 30 dB)
ohms, both channels driven 50 to 15,000 Hz with no more 50 dB quieting sensitivity .... 15 dBf (1.5 µV/75 Ω, mono)
than 5% THD. (DEH-2350) Signal-to-noise ratio ...................... 70 dB (IEC-A network)
Distortion .......................... 0.3% (at 65 dBf, 1 kHz, stereo)
Continuous power output is 20 W per channel min. into 4
Frequency response ...................... 30 – 15,000 Hz (±3 dB)
ohms, both channels driven 50 to 15,000 Hz with no more
Stereo separation .......................... 40 dB (at 65 dBf, 1 kHz)
than 5% THD. (DEH-1350)
Maximum power output AM tuner
(DEH-2350).................................................. 50 W × 4 Frequency range ........................ 531 – 1,602 kHz (9 kHz)
(DEH-1350).................................................. 45 W × 4 530 – 1,640 kHz (10 kHz)
Usable sensitivity .............................. 18 µV (S/N: 20 dB)
Load impedance .......................... 4 Ω (4 – 8 Ω allowable) Selectivity .................................................. 50 dB (±9 kHz)
Preout maximum output 50 dB (±10 kHz)
level/output impedance ............................ 2.2 V/1 kΩ
Equalizer (3-Band Equalizer)
(Low) .................................................. Level: ±12 dB
(Mid) .................................................... Level: ±12 dB
(High) .................................................. Level: ±12 dB
Loudness contour
(Low) .................. +3.5 dB (100 Hz), +3 dB (10 kHz)
(Mid) ................ +10 dB (100 Hz), +6.5 dB (10 kHz)
(High) ................ +11 dB (100 Hz), +11 dB (10 kHz)
(volume: –30 dB)

Note:
• Specifications and the design are subject to possi-
ble modification without notice due to improve-
ments.