1722 W
1722 W
mopeEL 1722W
a
SECTION 1
SERVICE MANUAL
TABLE OF CONTENTS
L SPECIFICATIONS: « 2s. caiccenigie bebe a bes det ehh Mobi as tases Gees tee 4
4. SIGNAL TO NOISE: RATIO 122. dd hie Sioltal tdacee eb eran eR eheee eS sk:cng BS eee Bas 6
nett
5. TOTAL HARMONIC DISTORTION FACTOR ...... eee eee
.-....
0200 7
6. CROSS TALK (Cross talk between the tracks) ......02 eee eee eee eee
.....0 7
7. ERASE RATIO .. 1... eneene ee eee tt eee 7
ee eee ee eres
........-..---.5e
ADJUSTMENT 11
2. SUPPLY REEL TABLE TENSION
REEL TABLE TENSION ADJUSTMENT ........... eee eeee
-------+ 11
3. TAKE UP
..........-.---- 12
4. FWD/REC MODE MECHANISM CHANGE AND ADJUSTMENT
...... eee eee eee eee .
...--- eens 12
5. DRIVE BELT POSITION ADJUSTMENT
..........---- ee eee renee -5 eee 12
6. FLYWHEEL LOOSE PLAY ADJUSTMENT
7. ADJUSTMENT OF IDLER #2 POSITION
AT FAST FORWARD MODE bBo Ral aap etBatata ea Za 14
SHUT-OFF OPERATING POINT ADJUSTMENT ............-..-. 14
8. AUTOMATIC
V. HEAD HEIGHT ADJUSTMENT 0000-...
........ c eee ..06
te .
tenes 15
1. HEAD HEIGHT ADJUSTMENT ...... 2ee eee...eee ..0
ee -eee 15
Vi. -AMPLIFIER. (se ieee 26 dag hh he PIS Oe en tee gigas See eet 17
1. RECORDING BIAS FREQUENCY ..........CHECK .-.-2
eee eee eee eee 17
ee em
H. MEASURING METHOD
Fig. 1
Method B
Supply a 3,000 Hz sine wave signal from an Audio 4. SIGNAL TO NOISE RATIO
Frequency Oscillator and make a recording on a Speaker
blank tape at the beginning, ‘ middle, > and end of tape Output
pu Input
npu
. rae
winding. Rewind and playback tape. Measure wow 1722W ee eed a ae
and flutter with a Wow and Flutter Meter. (The aches
ad wow and flutter value of Method B will be close to
| 2 times of Method A) Fig. 4
Fig. 5
Er =20 log (dB)
2— 1
where,
= desired cross talk ratio (dB)
E, = 1,000 Hz signal output level (V)
E, = 1,000 Hz cross talk level (V) Wl NLA
E, = Non-input signal recorded level (V)
I. DISMANTLING OF UNIT
In case of trouble, etc. necessitating disassembly, please disassemble in the order shows in photographs. Reassemble
—_—
in reverse order.
PAUSE KNOB
sECHANISM: KNOBS
SCREWS
IV. MECHANISM ADJUSTMENT
PINCH ROLLER
Fig. 8
& a
Fig. 9
eal
ST 2
; ee
cM iss ia
pe taHaBe
Fig. 10
i
<=
60mm
Fig. 11
CC
2 6)
“~~ CAM ROLLER A
M1T,2 LEVER !
RECémprwo. {7 \T
CLILETESSSSSLLETLLEETED
ESSE
Fig. 12
eee in eae
LILLE APTI ZT ZAI LP
DLT I IO
TrID
Fig. 13
A NUT
Yd} Von
Neat
FLYWHEEL
= Cerra
Fig. 14
TAKE UP ROLLER A
IDLER WHEEL #2
SG
ASAAS
RA
AO,
INDICATES F. FWD. LEVER | CAM C ADJUSTING SCREW ©
—-——-- INDICATES STOP Fig. 15
PINCH ROLLER
MICRO SW,
CUT POINT
A LEVER SHAFT
Fig. 16
Move Cam © shown in Fig. 15 up and down as Move Micro Switch as indicated by the arrow mark
indicated by the arrow mark (~>) in the figure and (~=) in the figure and fix Screws (a) and ©) so
adjust Lever ©) height so that Idler #2 contact that when the Automatic Shut-off Switch is at ON
between Take Up Roller A and the knurling Pulley position, the Micro Switch is perfectly turn off at
is uniform when the F.FWD/RWD Lever is set to position at which the gap between A lever shaft
F.FWD position. Fix at adjusted position with and AS lever Stopper is about 5 mm as shown in
Adjustment Screw () Fig. 16.
During operation, confirm that the rotating position
of Idler #2 is ideal.
V. HEAD HEIGHT ADJUSTMENT
oo _
HEIGHT ADJUSTMENT (HEIGHT ADJUSTMENT
SLANT ADJUSTMENT. LANT ADJUSTMENT
@,® ©,@
3 watt.
ERASE REC./P.B.
HEAD HEAD
Fig. 17
As head adjustment is of utmost importance to the 2. HEAD SLANT ADJUSTMENT (See Fig. 17)
operation of a tape recorder, please be especially
careful in making these adjustments. Also please Adjust Adjustment Screws @) , ) , ©), and (@)so
check the tape travel system. that the erase and recording/playback heads contact
If the tape travel system is faulty, because. this the tape at the proper angle in relation to tape
causes the tape to twist, etc., be sure that reel travel.
height adjustment is precise.
1) Erase Head
Loosen Screws (a) and ©) and adjust the erase
head height. Tighten screws. At position at
which the upper edge of the tape is 0.15 mm
lower than the upper edge of the erase head
core.
2)Recording/Playback Head
Adjust with Head Height Adjustment Screws ©)
and @) so that the upper edge of the tape and
the upper edge of channel 1 head core are the
same height.
a
1722W/L LINE OUT
Fig. 18
3. RECORDING/PLAYBACK HEAD
AZIMUTH ALIGNMENT ADJUSTMENT
(See Figs. 17 and 18)
_ ERASE VOLTAGE
Correct erase voltage is about 43.5V A.C.
Between Red-Vit
Between Gry-Vlt
Main Motor
Between Wht-BIk 14002
Between Ylw-Bik
Primary 150Q
-
Driver Transformer N24-6847 AT
Secondary 700
_ Erase- Head 22
Recording/Playback Head
5 240V_BLU
Chart 1
VIII. COMPOSITE VIEWS OF COMPONENTS
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FROM OSC.
CTION
{LS-5207)
TCH.
FROM TRACK
SELECTOR SW(SW7) Feeor)
~ FROM POWER
SUPPLY SECTION JO LINE OUTPUT
(L$ -5207) JACK(J8 ,J 10)
FROM TRACK
SELECTOR SW(SW7) TO RIGHT CH.
POWER SECTION
{LS-5207)
TO HEAD PHONE ...-.
JACK ST
TO SPEAKER SW,
(swio)
vt
>
JIO
JACK
CH.
RIGHT
FROM
JACK
MIC/PHONO TOLINE
OUTPUT CH.
RIGHT
CH. M2
METER
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RIGHT
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~ SECTION 2
PARTS Lust
TABLE OF CONTENTS
1. This parts list is compiled by various individual blocks based on assembly process.
2. When ordering parts, please describe parts number, serial number, and model number in detail.
3. How to read list.
-—The reference number corresponds with illustration or photo number of that particular
parts list.
This number corresponds with the Figure Number.
This number corresponds with the individual parts index number
in that figure.
‘A small “x” indicates the inability to show that particular part
«; in the Photo or Illustration. ;
12-1 1 5x - Schematic Diagram Number of individual
manufactured part.
(not required for parts order)
en of particular part required.
. The symbol numbers shown on the P.C. Board list can be matched with the Composite Views
of components of the Schematic Diagram or Service Manual.
. The indications of Resistors and Capacitors in the photos of P.C. Board are being eliminated. 7
a>
oer
. The shape of the parts and parts name, etc. can be confirmed by comparing them with the parts
shown on the Electrical Parts Table of P.C. Board.
. Both the kind of part and installation position can be determined by the Parts Number. To
determine where a parts number is listed, utilize Parts Index at end of Parts List.
It is necessary first of all to find the Parts Number. This can be accomplished by using the
Reference Number listed at right of parts number in the Parts Index. (meaning of ref. no.
outlined in Item 3 above).
. Utilize separate “Price List for Parts” to determine unit price. The most simple method of
finding parts Price is to utilize the reference number.
Stopper Type
(
Because the indication of resistors
and capacitors in the P. C. Board
photos are being eliminated, please
f
Insulator Type
confirm parts name and shape by
comparing them with the parts
shown in this table. Solid Resistor Carbon Resistor
Rin
Sg, a
F
MP Capacitor (Tubular Type) Plastic Capacitor Mylar Capacitor VFM (Hi-Q) Capacitor
5 Vertical Type
sae
Mylar Capacitor Tantalum Capacitor Oil Capacitor (Tubular Type) Styro] Capacitor
Vertical Type
(Tubular Type)
i
I
Metalized Mylar (Paper) Capacitor
i HEAD BLOCK
Ref. ae Schematic _,
No. Parts No. Description No. Q’ty pice #
-1x
1-1 BH482051 4-TR-LC Head Block Comp. LS-2, 3
: -
1-2 HZ392501 Head Base, LS (s/pin) - LS-0001
i 1-3
- HZ274195 Tape Guide No. 11 1630-19
1-4x ZW273745 Spring Washer M3
1-5x ZW601290 Nut M3
1-6 HZ392545 RH Angle Base LS-0003
1-7 HP375131 REC./PB. HEAD P4-150
1-8x ZS201508 Screw, pan head 2x4
1-9 ZS345914 Screw, round head 3x10
1-10 ZG382757 Angle Adjust Spring D RD-Al2
1-11x HZ393974 JI-MK Head Terminal Plate RC-89
1-12 HE384693 ERASE HEAD E4-200
1-13 HZ410984 Erase Head Base LF-0002
1-14 ZS201475 Screw, pan head 2x3
1-15x ZS344283 Screw, pan head 3x4
' : 1-16 HZ256432 Lifter Mt. Table B, w/pin LM-4
1-17 ZW345442 Washer (Nylon) D4.2x9xiIt
1-18 ZG389283 Tension Spring, LS LS-0005
4 1-19 ZW290283 ‘U’ Ring 2.85M 6-11
1-20 MZ301048 Lifter Spoke, 920 LM-12
.
1-21 EJ392567 Mold Socket SB-5202 (M Type) 31-7
1-22x ZW273881 Earth Lug M4
1-23. ZS202061 Screw, binding head 3x5 SB
WWNeE
eB
BP
ONN
NN
Ne
=
w=
Seem
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ————~—————___
FIG. 2. ILLUSTRATION OF ae
REEL TABLE BLOCK eSAcer =
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail, ————————
Ne
FIG. 3. ILLUSTRATION OF MOTOR/BELT CHANGE LEVER BLOCK
5 am
4 = + } 4
lt
ik A at
: wy
: i]
<2 Q
4
| !
HE bi ®
u ‘ 1 Fo a
eZ i al A
16 1 cE je
12 4 f 7
ae : 4 ry | go
b> q
oy i |‘ =zCO ANG
ee i ii T
14
ers |
30 q
28 . i !
31 or 4
22
23 if |
| !
29 ‘ I
24 1
er
MOTOR BLOCK ; *
3-1x BM364320 Motor Block 16Y Comp. LS-1, 2,3 1
3-2x BM486663 Motor Block 16Y Comp. (CSA) LS-2,3 1
3-3x BM489137 Motor Block 16Y Comp. (CEE) LS-2,3 1
3-4 MZ448222 24 Motor Cover, w/metal 24X-781 2
3-5 MZ459178 24 Seal D 24X-786 i
3-6x MZ458594 Oil Felt D BS-7031 1
3-7x MZ453598 24 Seal C 24X-785 1
3-8x MZ458605 Oil Felt E BS-7032 1
3-9x ZS384131 Screw, round head 3x5 4
3-10 ZS427037 Screw, pan head 4x50,
w/washer 4
3-11 MH254316 24 Motor Prop B 24X-729 4
3-12 MZ254373 Motor Mt. Plate L 24X-733 I
3-13. MZ430334 Motor/R. Table B RC-112 1
3-14 MH254160 Motor Prop A 24X-730 2
3-15 MH254182 Motor Prop B 24X-731 1
3-16 ZS424056 Screw, pan head 4x10 4
3-17. ZS272395 Motor Prop Retaining Screw,
Mage’ wa £5 M-7 24X-732 1 7
3-18 ZS427026 Screw, countersunk head 4x10 2
3-19x MZ296144 24 Oil-cut 24X-735, 2
3-20x ZW222388 Rubber Washer 24X-739 1
3-21x ZW259885 Washer (PBP) D5.1x10.3x0.1t 1
3-22 MR336172 Motor Pulley B, 24L 24X-775 1
3-23 MR257984 Knurling pulley, w/sleeve 24X-740C 1
3-24 ZS413921 Screw, oval countersunk bead
3x15 1
3-25 MZ254068 Motor Out-side Shield 2 3A-770C 1
3-26x MZ292364 Motor Shield Plate B, XR
(CSA, CEE) XR-705 1
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ————————
7
FIG. 4 ILLUSTRATION OF ee
FLYWHEEL BLOCK ca
-
a
FLYWHEEL BLOCK
Ref. Schematic
No . Parts No. Description No. Q’ty
When ordering parts, please describe Parts Number, Serial Number, and Modet Number in detail ——————————__
FIG. 5 ILLUSTRATION OF os
SWITCH BLOCK
SWITCH BLOCK
ai Parts No. Description ete Qty. 2 7°
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ———————_____
MECH. ASSEMBLY BLOCK een
Schematic Ref. Schematic
: ha Parts No. Description No. Q’ty No. Parts No. Description No, Q’ty
ES;
Vig.
Ay
« eA
}
_
nN\
aagiaie
=
SSK
qm!
SSsS5
ZA
2A
SS
NOILVULSATIE
“OL
9HOSW
JO
ATAWASSV
YOOTH
)aoero iN
V3 NA
“AA
yy
re
4 wy
y |\
iS) \ fen iaHi
Parts
a
No.
ER2113757
ae Be Parts No. Description Q’ty
QPY
<
oO.
ER362485
7-R1,2
Resistor, Stopper Type
ER336442
7-1x BA482117 PRE-AMP. P.C. Board Comp.
1
ER357412
(LS-5209) Carbon RD1/4 100k(J)
NNNNNNNNNNBPNNNNNN A
7-R3
ER211757
7-TR1 ET234843 Transistor 2SC458LG(B) (C) 2 Carbon RD1/4 330k(J)
7-R4
7-TR2 ET234843 Transistor 2SC458LG(B) (C) 2
ER212264
Carbon RD1/4 10k(J)
7-R5
Carbon RD1/4 220(3)
ER212883
7-D1 ED219464 Germanium Diode 1N34A 2
7-R6
ER336442
2 Carbon RD1/4 100k(J)
7-R7
7-SW1 ES307877 Slide SW. CL162B35
Carbon RD1/4 22k(J)
ER349907
7-R8
7-2 ZG227441 ~=Spring C 2
Capacitor,
Carbon RD1/4 4.7k(J)
7-R9,
ER357570
Vertical
7-3x EZ392095 Fasten Tab 3
EC220678
7-R11
ER306887
Carbon RD1/4 10k(J)
10
Type
EC320051
7-R12
RD1/4 33k(J)
ER357456
Carbon
25WV
Elect.
47uF
EC336194
7-C1
0.00i1uF(K)
270PF(J)
7-R13
Carbon RD1/4 150k(J)
ER399644
16WV
VFMElect.
NYMNNNNNNNNNNN YN
10uF
EC250604
—_ =
7-C2
7-R16 7T-R14
Carbon RD1/4 15k(J)
ER380913
50OWV
EC220590
7-C3
7-Ri5
Carbon RD1/4 2.2k(J)
ER212477
50WV
Mylar
EC350616
7-C4
Carbon RD1/4 82(J)
ER357412
VFMElect.
10WV 10WV
S50PF(J)
EC220590_—-
7-C67T-C5S
33uF
Carbon RD1/4 33(J)
7-R17
ER213030
SOWV
EC450527_—s
7-R18
ER213120
Carbon RD1/4 3.3k(3)
Elect.
0.472F(M)
33uF
7-C97-C87T-C7
EC487157
0.0082uF(J)
7-R19
Carbon RD1/4 220(J)
680PF(3)4.7uF
50WV 25WV
NP Elect.
EC411827
7-R20
Carbon RD1/4 5.6k(J)
50WV SOWV
0.0068uF(K)
EC429851
Carbon RD1/4 56(J)
7-C10
EC342821
FMS50PF(J)
7-C11
0.0068uF(K)
EC270573
VFM
SOWV SOWV
Mylar
7-C12
EC342821
SOOWV
7-C13
=Mylar
7-C14
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail. ————————_____
FIG. 8 PHOTO OF MAIN AMP./OSC./POWER SUPPLY P.C. BOARD. £1S-5207) BLOCK
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail —————————
FIG 9 PHOTO OF AMP . ASSEMBLY BLOCK
i
REC, LEVER BLOCK 9-58x BT481702 Power Trans. LST-5 (CEE) 38-4-173 i
9-1x BL482130 Rec. Lever Block Comp. LS-2, 3 1 9-59 ZS200700 Tapping Screw #2 4x8 (Round) 4
9-2 ML294625 Rec. Lever 1, 1720 LCS-5 ] 9-60 EJ300508 Mate-N-Lock Plug Housing 9P
9-3 ML294636 Rec. Lever 2, 1720 LCS-7 1. 1-480274-0 52-1-7 1
9-4x ZS349288 Screw, binding head 3x5, 9-61x EJ373634 Socket Contact 61115-1 §2-1-1 8
w/washer 4 9-62 EJ233370 Socket (Volt. Selector)
9-5 EZ294434 1720 Shaft Hodler LCS-6 1 S-18010 4023 1 |
9-6 MS294513 Tension Arm Shaft, 1720 Les-4 1 9-63x EF563681 Fuse tA 250V 39-150 1
| 9-7x ZW273914 Spring WasherM4 1 9-64x ZS201183 ISO Screw, Truss Head 3x8
9-8x . ZW273960 Nut M4 1 (Black) 2
ZW290283 ‘U’ Ring 2.85M 6-1-1 1 9-65x EJ254970 Lug Plate KP1L1 33-3-3 1
9-9x
9-10x MZ481825 SW. Interlocking Plate, 1720, 9-66x EF460653 Fuse ST-1 1A (UL) 391-25 1
(w/plate spring) LS-5204 1 9-67 EW540112 AC Cord (CUL) 2.5M 26-3-19 1
9-68x EW354240 Power Cord (CEE) ER-0150 1
JACK PLATE BLOCK 9-69x EW315448 Australia Cord (3 core) 26-3-11 1
9-11x BJ482141 Jack Plate Block Comp. LS-2, 3 1 9-70x EW486797 Power Supply Cord (WG) 26-3- 26 1
9-12 EJ481590 Jack Plate 1721, w/jack LS-5205 1 9-71x EJ585876 Fuse Terminal Plate 8 (CSA) 101061 1
9-13x ER440921 Carbon/R. RD1/4 27k(J) 9-72 EZ382263 Strain Relief SR-4K-4 2-71-12 1
ea (Insu. Type) 35-95 2 9-73x EZ246936 Strain Relief SR-6W-1
9-14x ER443790 Carbon/R. RD1/4 470k(3) r (WG, 3 core) 2-7-8 I
35-45 2 9-74x ZW392692 Washer, Strain Relief LS-5017 11
ties .” Gnsu. Type)
Slide SW. SL-222B4C 25-3-40 1 9-75x ZW459134 Washer, Strian Relief (CEE) LS-5027 J
9-15 ¥ES422436
9-16 ES481601 Slide SW. SL-243B4F 25-3-65 1 9-76x EJ585865 Fuse Holder (CEE) 101060 1
Terminal C (Nut) LS-5218 1 9-77x EF354295 Fuse (T Type) 1.6AT (CEE) 1
9-17x EJ486404
55-5033 1 9-78x EF480903 Fuse 1A 125V (CSA) 391-44 1
9-18 EJ457637 Terminal B (Screw)
9-19x EZ328331 Fasten Receptacle 170043-2 52-1-8 4 9-79 BA482117 Pre-Amp. P.C. Board (LS-5209)
Comp. LS-5209 1
AMP. ASSEMBLY BLOCK 9-80 ZG250367 Micro Spring E MH-22 1
9-20 EZ481307 Amp. Chassis 1721 LS-5201 1 9-81 BA482128 Main Amp./Osc./Power Supply
9-21 ES317531 Slide SW. ESD-271DU 25-3-24 1 P.C. Board (LS-5207) Comp. LS-5207 1
9-22x ZW273881 Earth Lug M4 d 9-82x EJ314403 Nylon Clip HP-2N (CEE) 2-7-36 1
ZS200700 Tapping Screw #2 4x8 (Round) 1 9-83 EZ512122 SW. Retaining Plate LS-5228 1 os
9-23x
9-84 ES422436 Slide SW. SL-222B4C 25-3-40 baa
9-24 EC353766 Elect./C. 2200uF 25WV (Lug T
(Lug Type) 241047 1 9-85 ML294647 Rec. Lever 3, 1720 LCS-8 1
9-25 ZS325495 Tapping Screw #2 3x6 (BR) 11 9-86 EZ293231 Speaker Mt. Chassis A, 1630
9-26x EZ225077 Jack Plate Prop (Main Amp.) LD-512 1 (Left) 1630-601 1
9-27x ZS322626 Screw, binding head 3x8, 9-87 EZ293242 Speaker Mt. Chassis B, 1630
w/washer 1 (Right) 1630-601 1
MH481678 32 Prop (Pre-Amp.) LCS-33. 3 9-88 SS487168 Speaker 75E-8A 29-2-6 2
9-28x
9-29 ZS413728 Screw, binding head 3x6, 9-89 ZS200496 Screw, countersunk head 4x12
1 (Black) 8
w/washer
3A-745 2 9-90 ZW413188 Nut #1 M4 8
9-30 MZ259233 Wire Band C
9-31 EA390543 Pilot Lamp P.C. Board LS LS-5016 1 9-91 ZW290248 Speed Nut (U Type) #1 M4
EL390576 Pilot Lamp (L/T) (Small) 6-31 4
9-32
RM6-24V-50MA __28-2-6 1 9-92 ZW290250 Speed Nut (U Type) #1 M4
LS-5226 1 (Large) 6-3-2 8
9-33, EA498958 SRTR SW. P.C. Board
Ferri Inductor FL9H 200uH(K) 23-1-4 1 9-93 SM481342 Jack Name Plate A LS-6206,7 1
9-34 ~EO392578
Slide SW. SL-243B4D 25-3-33 J 9-94x SM481353 Jack Name Plate B(UL, CSA) LS-6206,8 1
9-35 ES368436
Connector Plug 7P S-17302 42-1-40 1 9-95x SM481364 Jack Name Plate C (CEE) LS-6206,9 1
9-36 EJ390453
Slide SW. SL-222B4C 25-3-40 1 9-96x ZS201150 Screw, truss head 3x6 (Black) 2
9-37 ES422436
Screw, binding head 2.6x4 4 9-97 SE449100 Mask B BS-6012 2
9-38. .2S442585
9-39 EV390554 Double/Vol. D24N 50 kB+SOKA 36-3-24 2 9-98x SE225977 SW. Mask (Nyon) 1630-605 1
9-40x ER214290 Carbon/R. RD1/4 4.7k(J)
(insu. Type) 35-95 2
9-41 EJ433844 Mic. Jack 2PMJ4 31-2-35 2
9-42x ER364948 Carbon/R. RD1/4 3.3k(J)
: (insu. Type) 35-95 2
9-43x EZ225180 Nylon Collar, Jack LD-520 2
9-44 ZW455275 Washer (Fiber) D9.1x18x0.5t 3
9-45 ~.ZW391680 EJackNut. 7-1-20 3
9-46 EJ442078 Mic. Jack 3PM54 31-2-36 }
9-47 ES246025 Push SW. SDF1PBP1
(UEH-12BP) 511}
9-48x ES469541 Push SW. TV-3 JB52 (UL) 25-5-60 1
9-49x ES499972 Push SW. JS-09 (CEE, WG) 55-67 1
9-50 SK569790 Push Button LS-5230 1
9-51 ER376413 Spark Quencher U/L
0.0334+1202 SOOWV = 41-1-37 1
9-52 ZS442585 Screw, binding head 2.6x4 4
9-53 EM476482 VU Meter D-1807R (18B Type) 46-1-54 2
9-54x SE446545 MaskA _ DF-6041 2
9-55 BT390598 Power Trans. LST-1 38-4-10] 1
9-56% BT390587 Power Trans. LST-2(UL) 38-4-102, 1
9-57x BT481713 Power Trans. LST-4 (CSA) 38-4-172 1
When ordering parts. please describe Parts Number, Serial Number, and Model Number in detial. ———————_____
4
1
1
i
t
2 ge SAS
en
FINAL ASSEMBLY BLOCK
on Schematic al
Ref.
No. Parts No. Description No. Q’ty
CASE BLOCK
10-10 BC575695 Wood Case Block Comp. 1 i
20-11x BC575706 Leather Case Block Comp. 1
10-12 SA377190 Rubber Foot, LM LM-44 «6
10-13x ZW406247 Washer (SUP) D3.2x10x0.5t 6
10-14x ZS202511 Screw, round head 3x18 6 é
10-15x ZW345947 Tapping Screw #1 2.6x8
countersounk 8
10-16x ZS316642 Wood Screw, countersunk head
: 2.4x6.3 8
10-17x SE382217 Fan Grill RD-A42 1
10-18 ZS324448 Tapping Screw #1 3x10 (Truss)
(Black) 11
10-19 SE382228 Speaker Grill RD-A48 2
10-20x SZ237993 Hooking Holder B 100737 2
10-21x SZ208271 Holder Metal Supporting Plate CD-64 2
10-22x ZW304536 Screw, oval countersunk head
3x14 2 F i
10-23x ZS203218 Wood Screw, round head eee
2.7x10 6
10-24x SZ304964 Hooking #1 700 AT-37 2
10-25x ZS202375 Screw, round head 3x10 2
10-26x VM293883 Hinge #1700 AT-38 2
10-27x SZ293477 Vinyl Handle #1630 1
10-28x S$Z324303 Handle Metal Fitting #1630 2
10-29x SZ293455 Handle Metal Fitting Cover
#1630 2
10-30x 2S345971 Screw, countersunk head 4x35 2
When ordering parts, please describe Parts Number, Serial Number, and Model Number in detail, ———-————
pebe J
INDEX
Ref. No. & Ref. No. & Ref. No. & Ref. Ref. No. &
Parts No. Symbol No. Parts No. Symbol No. Parts No. Symbol No. Parts No. ‘Symbot No. arts No. Symbol No.
BA482117 7-1x EJ373623 6-129x ES481656 6-11x MR217203 5-24 MZ317068 5-27 '
BA482117 9-79 EJ373634 9-61x ES499972 9-49x MR217203 6-56 MZ327251 6-71
BA482128 8-1x EJ390453 9-36 ES601650 = 5-3 MR217203 6-99 MZ327341 5-6
BA482128 9-81 EJ392567 = 1-21 ES601672 5-12 MR217214 6-57 MZ327352 5-8
BC575695 10-10 EJ433844 909-41 ET234843 7-TR1 MR251460_ 2-12 MZ392490 5-16
BC575706 10-11x E}442078 9-46 ET234843 7-TR2 MR252044 2-38 MZ413976 4-6
BF482040 4-1 EJ450573 = 6-128x ET338894 8-TR6,7 MR252066 2-20 MZ430334 3-13
BH482051_—‘I-1x EJ457637 99-18 ET379462 8-TR2 MR252077 2-41 MZ446635 4-7
BJ482141 = -9-11x EJ481590 9-12 ET380834 8-TR5 MR256094 2-36 MZ448222 3-4
BL204658 6-125 EJ486404 = 9-17x ET391735 8-TR3,4 MR257984 3-23 MZ452496 6-53x
BL482130 9-1x EJ585865 9-76x ET539987 8-TR1 MR269763 6-114 MZ453598 3-7x
BL564107 3-27x EJ585876 9-71x EV390554 9-39 MR336172 3-22 MZ458594 3-6x
BM364320 3-1x EL390576 9-32 EW315448 9-69x MS205560 6-62 MZ458605 3-8x
BM486663_ 3-2x EM476482 -9-53 EW354240 9-68x MS243404 6-111 MZ459178 3-5
BM489137 3-3x E0383308 8Lt EW486797 9-70x MS245463 6-26 MZ481612 6-8x
BR570802 2-1x EO383365 8-T2 EW540112 9-67 MS255600 2-6 MZ481825 9-10x
BR570813 2-2x E0392578 9-34 EZ225077 9-26x MS257051 6-19 MZ518973 6-29x
BS601604 = 5-1x E0393423 8-L2 EZ225180 9-43x MS260515 6-30 MZ585887 6-43
BT390565 = 8-T1 E0606071 6-32 EZ246936 9-73x MS294513 9-6 MZ885900 4-15
BT390587 9-56x E0609862 6-33x EZ293231 9-86 MS481858 4-3 MZ585911 4-14
BT390598 9-55 - ER211465 8R7 EZ293242 9-87 MS582906 6-113 MZ586438 4-9x
BT481702 ‘'9-58x ER211465 8-R20 EZ294434 9-5 MT222366 2-13 MZ605700 6-136x
BT481713 9-57x ER211757 7-Ri, 2 EZ328331 9-19x MT228598 2-48 MZ605711 6-137x
BZ400948_ 6-1x ER211757 7-R6 EZ382263 9-72 MT245215 6-81 SA377190 10-12
BZ482062 6-7x ER212016 8-R9 EZ392095 7-3x MT252101 =2-19x SA377190 10-31x
EA390543 9-31 ER212016 8-Ri1 EZ481307 9-20 MT252112 2-4x SB258478 6-77
EA4989S8 9-33 ER212264 7-R7 EZ481792 = 8-2 MT255420 2-8 SB485741 6-40
EC220151 8-C7 ER212477 7-R17 EZ512122 9-83 MT255565_ 2-10 SC465761 =—10-41x
EC220151 =8-C17 ER212681 8-R3 HE384693 1-12 MT255712 2-3 SC481408 10-38
EC220151 8-C19 ER212681 8-R21 HP375131 91-7 MT255870 2-18 SC481487 10-5
EC220465 8-C3 ER212883 7-R8 HZ247511 1-26 MT255870 2-27 SE225977 9-98x
EC220590 = 7-C5 ER212883 8-R2 HZ256432 1-16 MT255881 2-40x SE382217 10-17x
EC220590 7-C7 ER212883 8-R25 HZ274195 = 1-3 MT255971 2-21 SE382228 10-19
EC220678 7-Cl ER213030 7-R19 HZ392501 1-2 MT255982 2-42x SE446545 9-54x a oe
EC220768 8-C8 ER213120 7-R20 HZ392545_ 1-6 MT255993 2-33 SE449100 9-97 ae
EC250604 7-C4 ER214290 9-40x HZ393974 = 1-11x MT292386 2-31 SE569744 10-34
EC250841 8-C20,21 |ER214402 8-Ri4 HZ410984 = 1-13 MT297663 2-7 SE569788 10-8
EC270573 =7-C13 ER251583 8-R12,13 |HZ468281 6-15x MT376110 2-5 SK314100 10-56
EC290520 =8-C4 ER251730 8-R22 MB256590 4-11 MT376457 6-85x SK425158 10-44
EC320051 =7-C2 ER304402 8-R26 MB406168 6-124x MT438592 2-28 SK476684 10-47
EC320051 8-C2 ER306887 7-R13 MC216448 6-123 MT438603 2-29 SK569790 9-50
EC320051 8-C9 ER306887 8R19 MH204311 6-2 MT438614 2-43 SK576573 10-50
EC324516 8C6 ER336442 =7-R4 MH244710 4-8 MT438625 2-30x SK576606 10-49
EC329850 8-Cl ER336442 7-R9, 10 MH245485 6-27x MT438636 2-47 SM481342 9-93
EC329850 8-Ci1 ER336442 8-Ri5 MH248343 6-24x MT438647 2-22 SM481353 9-94x
EC330401 3-35 ER336442 8-R18 MH254160 3-14 MT440313 2-46 SM481364 9-95x
EC336194 7-C3 ER339805 3-38 MH254182 3-15 MV248117 6-5 SM576551 10-39
EC342821 7-C12 ER342933 8-R} MH254316 3-11 MV269965 4-13 SM576562 10-40x
EC342821 =7-C14 ER349907 7-R11 MH260425 5-28 MV270066 5-30 SP569766 10-3
EC350616 7-C6 ER350065 8R16 MH270000 2-35 MV270066 6-134 SP569777 —10-4x
EC350616 8C5 ER350100 8-R6 MH273295 6-17 MZ210071 6-95 SP570745 10-1x
EC353766 9-24 ER357412 7-R5 MH481678 9-28x MZ217113 6-74 SP570756 10-2x
EC379157 8-C15 ER357412 + =7-R1i8 MI204423 6-65 MZ217271 5-31 SS487168 9-88
EC389485 8-C14 ER357456 7-R14 MI204423 = 6-102 MZ217271 6-135 S$Z208271 10-21x
EC411827 7-C10 ER357570 = =7-R12 MI231423 6-108 MZ217686 6-120 $Z237993 10-20x
EC411827 8-C12 ER362485 7-R3 MI296245 4-2 MZ217708 6-69 SZ293455 10-29x
EC424708 8-Cl6 ER363644 8-R5 ML2i7462 3-28 MZ217855 6-118 $Z293477 = 10-27x
EC429851. 7-Cll ER364948 9-42x ML217934 6-80 MZ225720 5-23 S$Z304964 10-24x
EC450055 = 8-C10 ER371946 8-R10 ML226258 6-39 MZ229138 6-130x $Z324303 10-28x
EC450270 8-C18 ER376413 9-51 ML251932 6-84 MZ237418 6-34 $Z327442 10-53x
oa t
“a EC450527 = 7-C8 ER380913 7-R16 ML257040 6-98 MZ248354 3-29 SZ465377 6-3
EC451462 8-C13 ER391961 8-R4 ML257128 5-16 MZ253113 4-10 SZ465388 6-6
EC486630 3-36x ER392534 8-R8 ML257163 6-103 MZ253653 6-60 $Z476728 10-54x
EC487157 =7-C9 ER399644 7-R15 ML262337 6-91 MZ254068 3-25 VM293883 10-26x
EC520481 =8-C22 ER399723 8-R23,24 |ML270685 6-61 MZ254373 3-12 ZG205571 6-67
ED219464 7-Di ER440921 9-13x ML294625 9-2 MZ256814 5-35x ZG217337 6-92
ED329128 8-D1 ER443790 9-14x ML294636 9-3 MZ256882 3-41 ZG217394 3-32x
ED329130 8-D2 ER450011 8-Ri7 ML294647 9-85 MZ257073 6-21 ZG217394 6-132
EF354295 9-77x ES246025 9-47 ML295727 6-100 MZ259233 9-30 ZG217866 6-119
EF460653 = 9-6 6x ES250007 6-42 ML300161 6-88 MZ260662 6-93 ZG224796 6-104
EF480903 =9-78x ES307877. _7-SW1 ML308564 6-28x MZ292364 3-26x ZG227441 7-2
EF563670 10-52x ES317531 9-21 ML309093 6-55 MZ293567 6-121 ZG227452 6-86
EFS63681 9-63x ES368436 9-35 ML369718 6-116 MZ293578 6-122 ZG227485 5-33
EF563681 10-58x ES422436 969-15 ML475920 6-54 MZ296144 3-19x ZG227542 2-39x F
EJ205986 6-51x ES422436 9-37 ML481768 6-13x MZ301048 6-131 ZG227553 2-14 ce
EJ233370 9-62 ES422436 9-84 ML492344 6-110 MZ301048 1-20 ZG227586 5-7
EJ254970 9-65x ES469541 = 9-48x ML548280 6-87 MZ316901 5-2 ZG232121 5-32
E}300508 9-60 ES479485 6-96 MP204794 6-127x MZ316945 5-15x ZG250367 9-80
EJ314403 = 9-8 2x ES479496 6-9 MP204794 10-43 MZ316956 5-29 [eee 2-9
EJ373623 6-73x ES481601 9-16 MR217203 5-17 MZ316956 6-133 ZG256937 5-34
LL —L :
An
INDEX
—
. No. Ref. No. & Ref. No. & Refi arse — Ref. No. &
Part No. Syke! ne Part No. Symbol No. Fart:No; Symbol No. PartNo. * “Symbol No. Farina: Symbol No.
20
=e
SECTION 3
SCHEMATIC DIAGRAM
1. 1722W SCHEMATIC DIAGRAM
2. 1722L SCHEMATIC DIAGRAM
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AUTOMATIC
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1722W AAL 1722W CSA
I722W/L
DIAGRAM
SCHEMATIC
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POWER AMP. & POWER SUPPLY P.C. BOARD
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NOTE
ACCORDING TO AREA SHOWN AS OTHER SCHEMATIC DIAGRAM
POWER TRANSFORMER BLOCK & MOTOR BLOCK ARE DIFFERENT
ALL RESISTORS IN 11 174W()
UNLESS OTHERWISE. SPECIFIED
ALL CAPACITORS IN pF SOWA)
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200 199
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ON
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DIAGRAM
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