Sanyo G-2915NK User manual

SANYO
PORTABLE
STEREO
MUSIC
SYSTEM
G-2915NK
SERVICE
MANUAL
A
PRODUCT
OF
SANYO
ELECTRIC
CO.,
LTD.

GENERAL
Audio
Input
Level:
Microphone
2mV,
400K
ohm
Transistors:
17
(for
tape
recording)
impedance
wey
|
:
3
SPEAKER
SECTION
ee
ae
120/200/220/240V
asshole
inking
Sine
:
HOOV
(Six
“OM
standard
batteries)
Dimensions:
7-7/8"
x
3-1/8"
x
10-1/8
Dimensions:
2N-1/4
IW)
y
6-1/4"
(D)
x»
16-3/4'"(H)
PHONO-PLAYER
SECTION
Weight:
Approx.
23
ibs.
(10.5
kg)
Turntable
Speeds:
33-1/3,
45
&
78
rpm
TUNER
Pickup
System:
Ceramic
Stereo
Cartridge
{part
#R-SO7135)
with
Sapphire
Stylus
Frequency
Ranges:
MW
530
—
1605kHz
(part
#R-SO7146)
Oe
eo
Turntable
Size:
7”
dia.
EM
Be
te
Wow
&
Flutter:
0.3%
intermediate
Frequencies:
MW/SW
455kHz
FM
10.7MHz
CASSETTE
SECTION
Effective
Sensitivities:
MW
400uV/m
Recording/Erasing
System:
AC
Bias
SW
400unV/m
:
Tape
Speed:
1-7/8"
FM
12uV
|
Rewind/F.Forward
Time:
120
sec.
(C-60
Cassette)
FM
Stereo
Separation:
20dB
.
Wow
&
Fiutter:
0.35%
AUDIO
AMP
SECTION
8
TRACK
SECTION
Output
Power:
3.5W/channel
.
Recording/Erasing
System:
AC
Bias
Frequency
Response:
30.
—
20000Hz
Tape
Speed:
3-3/4
ips
Output
Terminals:
Speaker:
8
ohms
Wow
&
Flutter:
0.35%
AM ALIGNMENTS
AM JF and RF Alignment
1 MW
SIGNAL
FREQUENCY
AND
DIAL
SETTING
COMPONENTS
TO
BE
INPUT
MODULATION
OF
SSG
OF
RADIO
ADJUSTED
FOR
MAX.
OUTPUT
Thru
Loop
455KHz
30%
~
Lower
end
{FT.
T-7,
T-8,
T-9
Antenna
3.2MHz
30%
Lower
end
OSC
coil
L-8
12MHz
30%
Upper
end
OSC
trimmer
CT-6
3.5MHz
,
30%
3.5MHz
Ant.
coi}
L-6
11.5MHz
30%
11.5MHz
530KHz
1605KHz
30%
Upper
end
600
KHz 30%
600
KHz
1400
KHz
30%
1400
KHz
Ant. trimmer CT-4
OSC coil L-9
30% Lower end
OSC trimmer CT-7
Ant. coil L-5
Ant. trimmer CT-5
SVR-1: Tp1 ~Tp2 V=0.6V
Repeat step 4 and 5,
Repeat step 8 and 9.
FM IF Alignment -
Connect
sweep
generator
to
CT-3
Tune
for
max.
gain
and
symmetry
and
oscilloscope
to
test
point
Tp-3
of
response
curve
(Fig.
1)
Connect
sweep
generator
to
CT-3
Tune
for
symmetricai
‘'S’’
curve
2
10.7MH
;
.
Bann
and
oscilloscope
to
test
point
Tp-4
(Fig.
2)
Fig. 1
n
6
NO
Symmetrical
response curve
10.7MHz marker
Symmetrical
"S"’ curve
10.7MHz marker
ee
mE weed Qe oe Babe ess Sam Are ae tn te

\ A
tA ee re ce ee Af Rl NN TR eA Ren A Al A ER A LF pe ne a NN EE ee ne tment ee ee
RF Alignment
STEP SIGNAL FREQUENCY AND DIAL SETTING COMPONENTS TO SE
INPUT MODULATION OF SSG OF RADIO ADJUSTED FOR MAX. OUTPUT
Thru dummy S8MeHz Lower end OSC coi} L4
Ant.
Fig. 3 108MHz Upper end OSC trimmer CT-3
90 MHz 9O0MHz RF coil L-2
90MHz S9O0MHz Ant. coil L-1
106MHz 106MHz RF trimmer CT-2
106MHz 1O06MHz ANT trimmer CT-1
Repeat STEP 3, 4, 5and 6.
Fl
Bates Z 3
i
S.S.G. 35 ohm ! 37.5 ohm
() To Aerial terminai
{Antenna)
OQ To EarthiGround)
Se ite ee eek S 3 75 ohms
FM MPX Adjustment
STEREO SIGNAL
STANDARD GENERATOR COMPONENTS
STEP SUBJECT SIGNAL MAIN. LEFT TO BE INDICATION |
GENERATOR PILOT RIGHT AND ADJUSTED
SIGNAL
SUB SIGNAL
; |
Adjustment L-102
1 of 19K Hz | -103 TP-102 Max. Output
and 38KHz :
Adjustment
2 ot
main channel
Separations 98MHz 60dB 10% MOD.
e e
3 Sub channel L-103 speaker Min. distortion
Output
left channel
output
; |
30% MOD. with |
right channel
SV R-101 . Min, Output
(or right chan-_
ne! output
{or left channel)
Right channel
| o | VV. OSCILLOSCOPE
Left channei
FM STANDARD
SIGNAL
GENERATOR
oes

PARTS LIST
PACKAGE PARTS
R-4770922 | Instruction book
R-4072075 individual carton
R-4170320
R-477070 Tag, Power
R-357237 Polyethylene bag
Poiyethytene bag, 160 x 245 x 0.05,
AC cord
Poiyethylene bag, 100 x 240 x 0.05, Mic
Polyethylene bag, 240 x 320 x 0.05
Protector, 19 x 19 x 100, Battery case &
Control left
Protector 5 x 21 x 150, 8 track & Cassette
Styro-foam cushion, Unit right & left
ACCESSORIES | |
R-S07137
R-SO7138
R-$07037
R-S8574b
R-S8575b
R-S3777
Microphone, Dynamic with remote
on-off switch, 400 ohms
Microphone, Dynamic, 400 ohms
Cassette Tape
Plug Adaptor, Siemens, Pitch 19mm
Plug Adaptor, England, Pitch 16.7mm
AC Cord
CABINET & APPEARANCE PARTS
1 R-A70683 Case complete assembly
R-A 70684 Case assembly
R-317227 Case
2 R-2670699 Frame
3 R-127767 Fix metal front
4 R-127829 Fix metal rear
5 R-127760 Fix metal right & left
6 R-127759 Fix metal
7 Tap. Screw, Pan Hd. (2) 3x8
8 R-S87096 Hinge assembly
9 R-118045 Fix metal, Hinge
10 R-4070778 Spacer
11 Screw Oval Hd. 3 x 12
12 R-S$870384 Lock assembly
13 Tap. Screw Pan Hd.3 x8
14 R-397085 Handie
R-397166 Handle base
R-117192 Fix metal, Handle base
15 Screw Pan Hd. 4 x 12
16 R-3970549 Base
17 Screw Bind Hd. 3 x 10
18 Nut Hex Hd. with Washer
19 R-437193 | Felt 10 x 30 x 5t
20 Neoplane 30 x 40 x &t
21 R-12080 Special nut 36
22 R-A70685 Panel assernbly
30 R-357146 Antenna holder
R-2670716 Decoration metal, Cassette lid
31 R-2670708 Decoration metal, Cassette azimuth
32 R-A70686 8 Track lid assembly
R-327286 | 8 Track lid
R-2670706 | Door 8 Track cartridge
R-157346 | Shaft, Door
R-127761 | Clip, Door
R-157342 Spring, Door
R-387418 3 Sign board, Channel
R-2670707 | Decoration metal, Channel!
33 R-A70637 | Battery case assembly
R-3970550 | Battery case
34 | R-327292 | Fix plastic board
R-157343 | Coil spring, + & — terminal
R-157344 Cail spring, — terminal
R-237119 Terminai +
R-237120 Terminal —
Lug 3x6
35 R-23970551 Knob
36 R-127762 Spring metal | |
Tap. Screw, Pan Hd., 2.6 x 6
R-357247 Ribbon
37 R-3970552 Rest stand, Pick-up
Tap. Screw, Pan Hd. with Washer "F’’,
3x8
38 R-A70688 Knob assembly, Tuning
Key ee :
Part No. | Description
a ee a ee |
we eNO BNNNNN AH ROWDRRANWH OB ea
~—
ak ed A} a ed ed wt
a ee ee eee ee
(1)
(1)
40
41
42
43
44
45
46
CABINET & APPEARANCE PARTS
| R.A708R9
R-3970555
R-3970556-L
R-327208
R-397076
R-3970556-M
R-325153
R-447839
R-2670709
K nob assembly, Rec./Vol./Rass/T reble/
Balance/Band/Function
Knob, Pop-up/Program
Knob, Rec.
Knob, Speed select
Knob, Mic mixing
Knob, Fast Forward, 8 Track
Adaptor, 45 rpm Disc
Turn-table rubber mat
Metai disk, Turn-table
Tap. Screw, Oval Hd., 3 x 30, Pane! ass’y
‘Tap. Screw, Oval Hd., 3 x 40, Panel ass‘y
Tap. Screw, Pan Hd., 3 x 8, 8 Track lid
SPEAKER BOX ASSEMBLY (RIGHT)
R-A70680
R-A70691
R-317230
R-2670671
R-$870382
R-117205
R-S870385
R-3970549
R-237114
R-$07136
R-12011
R-437025
R-$87143
Speaker box complete
Case assembly |
Case
Frame
Buffle plate assembly
Hinge
Fix metal, Key
Base
Special washer, Buffle plate
Screw, 8ind Hd., 3 x 10, base
Nut, Hex Hd. with Washer, base
Tao. Screw, Flat Hd., 3 x 10
Tap. Screw, Oval Hd. 3 x 20
Tap. Screw, Oval Hd., 3 x 10, Hinge
Tap. Screw, Pan Hd.,3 x8
Speaker, 8 ohm, 1.6W
Lug
Nylon tube, 4¢ x 27
Cushion, felt 45 x 45 x 2
Nut, Hex Hd. with Washer
Cord assembly, Speaker lead & piug
SPEAKER BOX ASSEMBLY (LEFT)
63
64
65
66
R-A70692
R-A70693
R-317232
R-2670670
R-S07136
R-72011
R-437035
R-S87143
Speaker Box Assembly, without speaker
Speaker Box only
Box
Frame
Speaker, 8 ohms, 1.6W
Lug
Nyton Tube, 4¢ x 27
Cushion, Feit 45 x 45 x 2
Nut, Hex Hd. with Washer
Cord Assembly, Speaker lead & plug
tod
BE NO 0 ee
J
{
(1)
(1)
wt Pak a ok ot
PANEL MECHANICAL PARTS
—4—
R-127770
R-2670712
R-157345
R-S870383
R-4170321
R-117886a
R-127764
R-32315
R-247137
R-157189
R-325017
R-147054
R-2670378
Chassis
Dial scale
Dial pointer
Shaft assembly
Nut, Hex Hd., M8
Cushion, Indicator
Pressure metal, Indicator _
Fix metal, Mic mixing SW
Drum
Special screw, VC — Drum
Washer Spring 2.66
Coil spring, Drum
Dial cord strings, _-335
Pulley
Pulley shaft
Heat sink
Tap. Screw, Pan Hd., 3 x 6, Heat sink
a eR eh Es ne i EAE ah ato I aU
oo ee oe ee ee ee eee ee a ee
BWW —
NA ee GR A A Me AA A
Lo Aiea Rea 5 a

EXPLODED VIEW (Case)
2) @ @
(2) (

ee ee
9ARTS LIST
67
638
PANEL MECHANICAL PARTS
R-397004
R-157140
R-127763
R-417735a
R-127765°
R-1177390
R-127726
R-415279
R-117739c
R-447843
R-4770977
R-1170533
R-157336
R-1170534
R-1170539
R-1170538
R-11 70531
R-157335
R-157331
R-1170537
R-147047
R-711 70536
R-147047
R-157330
R-1170535
R-147047
R-157239
R-157196
R-157369
R-11 70532
R-147047
R-1170530
R-S870389
R-157334
R-157327
R-S870390
R-247474
R-157328
R-S870391
R-157332
R-157333
ee a A
Pipe, Pick-up
Spring pin, Pick-up
Fix metal, Mic jack
Tap. Screw, Pan Hd.,3 x8
Support
Fix
metal,
Cassette
shield
case
Tap. Screw, Pan Hd., 2.6 x 6, shield case
Shield case, Cassette
Shield plate, Cassette Circuit Board
Tap. Screw, Pan Hd. with Washer “F",
2.6 x6
Protector, Cassette OSC Circuit Board
Shieid case, 8 Track OSC
Protector, 35 x 35 x 10, 8 Track C.B.
Shield plate, 8 Track C.B.
Screw, Pan Hd., 2.6 x 4 Shieid plate
Protector, 46 x 24 x 0.8, Shield plate
Holder, FM Stereo lamp & 8 Track lamp
Lable, Connector
Tap. Screw, Pan Hd., 3 x 8, Bronze
Fix metal, 8 Track lid, right
Screw, Pan Hd., 3 x 24
Washer, Flat, 3.3x8x 0.5
Spacer, Pop-up
Fix metal, 8 Track lid, left
Fix metal, 8 Track C.B., right
Fix metai, 3 Track C.B., left
Tap. Screw, Pan Hd., 3 x 6
Support bracket, Right
Tap. Screw, Pan Hd., 3 x 12
Spacer, Support bracket
Coil spring, Support bracket
Pop-up fever
Special screw with Washer
Pop-up link
Special screw with Washer
Spring, Link-lever
Lock plate
Special screw with Washer
Spring
Washer, Felt3x10x1
Spring
Nut, Hex Hd., 3
Spring, Mechanism — Support bracket
Tap. Screw, Pan Hd., 3 x 10, Mechanism
Support bracket, Left
Special screw with Washer
Fix metal, F.F switch
Lever assembly, Recording
Tap. Screw, Pan Hd.,3 x 8
Spacer
Spring
Arm assembly, Recording
Spacer
Coil spring
Tap. Screw, Pan Hd.,2.6 x8
Lever assembly, Channet
Spacer
Tap. Screw, Pan Hd., 26x6
Spring
oe seen ee
ives asap oQoaias awe ae Se SS SS OSS eS Se ROR ae
107
100
101
102
103
104
105
106
at ne pe apr ae ee et 0 ame NO a
L801
VR254
VR251,253,
255
VR252
$2
31
ne eg ce re entre ER CE A
R-A70676
R-A70679
R-A70670
R-247284
R-A70677
R-A70671
R-247144
R-A70678
R-A70672
R-A70673
R-S07133
R-S07135
R-SO7146
R-S5743
R-S5716
R-W1756
R-R1167002
R-R1167003
R-R1167004
R-S47151
R-S47152
R-S47026
R-$57019
R-S47057
R-S47061
R-$2720
R-S4734
R-S2766
R-S27117
R-S1721
R-S17134
R-S2115
R-W77060
R-S3010
R-S3741
R-377033-12
R-12004
R-127500
R-12011
R-S87827
R-$87828
R-S47150
Circutt bDOara assembry,
TUNER
Circuit board assembly, MPX
Circuit board assembly, AMP
Circuit board assembly, MIC
Circuit board assembly,
CASSETTE
Special screw
Circuit board assembiy,
CASSETTE OSC
Circuit board assembly,
8 TRACK
Special screw
Circuit board assembly,
8TRACK OSC
Circuit board assembly,
CONTROL
Circuit board assembiy,
POWER
Nut Hex Hd., 3
Tap. Screw Pan Hd., 3x 8
Washer Flat 3.3 x 10x 1
Tap. Screw Pan Hd.,3 x6
Pickup assembly
Cartridge
Stylus
Motor, DC, Phono
Turntable
Choke coil, Motor
Volume 50K MN
Volume, 50K 8
Voiume, 50K A
Rotary switch, Function
Rotary switch, Band
Push switch, Mic mixing
Indicator
Rotary switch, Power select
Tap. Screw, Pan Hd.,
Rest switch, Phono
Tap. Screw, Pan Hd. with
Washer “F', 3x8
Jack, Speaker
Switch, Power
Jack, Head phone
Jack, Mic.
Terminai, Power
Tap. Screw, Pan Hd., 3 x 6
Rod antenna
Screw, Bind Hd., 3 x 10
Washer, Flat, 3.3 x 10x 1
Washer, Sprina, 3
Socket, Rod antenna
Power transformer, AC 120/
200/220/240V
Tap. Screw, Pan Hd. with
Washer “F’, 4x 10
Nut, Hex Hd. with Washer, 4
2P lug
3P lug
Housing 12P, Cassette 8 track
Lug
Lug, Large
iug
Nylon tube 4¢ x 60
Battery terminai, +
Battery terminal, —
Push switch, 8 Track &
F.F channel
Screw, Pan Hd., 2x 4
Nut, Hex Hd., 2
SEMICONDUCTORS
Diode, SLP-24, 8 Track channel!
Diode, SLP-24, Stereo [ndicator
——
ey
Wa st a es Ot
_—
>
Mm— =~ p90) ON N) - NO Nm we ee ek wk CD et wet et AD — A} oe a
&
7
4

EXPLODED VIEW
(8)
%
(
\
x

PARTS LIST
PANEL ELECTRICAL PARTS
TUNER (RF AMPLIFIER) CIRCUIT BOARD
2a Maree ermal rr pp,
CAPACITORS SEMICONDUCTORS
C806 Electrolytic, 10mfd 10V 1 TRI1 Transistor, 2SC668 E 1
C801,802 Ceramic, S5000F, +10%, 35V 2 TR2 Transistor, 2SC668 D 1
C803 Ceramic, 0.02mfd, +100 —0% 1 TR3 Transistor, 2SA222 1
35V IC, LA1201C 1
02,3,4 Diode, 18188 FM 3
RESISTORS D5 Diode, 1S188 AM 1
D1,6,7 Diode, 181588 3
R811,861 Carbon, 220K ohm, +5%, 1/4W 2
R812,862 Carbon, 220 ohm, +5%, 1/4W 2 RESISTORS
R1,11 . Carbon, 680 ohm, +10%, 1/4W 2
CASSETTE PARTS . R24 Carbon, 2.2K ohm, +10%, 1/4W 2
. R3 Carbon, 39K ohm, +10%, 1/4W 1
R-S97014 Cassette mechanism assembly 1 R5 Carbon, 180K ohm, +10%, 1/4W 1
R-$5732 Motor, DC (1) R63 Carbon, 220 ohm, +10%, 1/4W 2
R-397623a Knob (6) R?7 Carbon, 150 ohm +10%, 1/4W 1
R-2670709 | Decoration metal, Cassette 6 RS Carbon, 15K ohm +10%, 1/4W 1
Knob : R10 Carbon, 1.5K ohm +10%, 1/4W 1
Tap. Screw, Pan Hd., 3 x 12 4 R12 Carbon, 1.2K ohm +10%, 1/4W 1
Washer, Flat, 2.66 x 50 x 0.5 4 R13 Carbon, 56 ohm 410%, 1/4W 1
R-SO0814
Recording
head
1
R14
Carbon,
8.2K
ohm
+10%,
1/4W
1
R-S0815 Erasing head 1 R16 Carbon, 2.7K ohm +10%, 1/4W 1
screw, Pan Hd., 2 x 4 3 R17,24 Carbon, 100 ohm +10%, 1/4W 2
Screw, Pan Hd., 2x 6 1 R20,21 Carbon, 1K ohm = £10%, 1/4W 2
Spring, Leaf switch 1 R22,23 Carbon, 5.6K ohm +10%, 1/4W 2
R25 Carbon, 10K ohm +1710%, 1/4W
R26 Carbon, 4.7K ohm +£10%, 1/4W
8 TRACK PARTS R28,29 Carbon, 120 ohm +10%, 1/4W ;
. R15,30 Carbon, 22K ohm = =+10%, 1/4W
D2 ae 8 Sainte cee assembly R19 Carbon, 270 ohm +10%, 1/4W 1
3507131 | Head. 1) R27 Carbon, 120 0hm +10%, 1/4W 1
| R-447843 a ier Cae anel R37 Carbon, 18K ohm +10%, 1/4W 1
ies R34 , Carbon, 27 anm — 410%, 1/4W '
| Tap. Screw, Pan Hd., 3x 12 9 : = :
RESISTORS
CAPACITORS
R40 Carbon, 820 ohm, +5%, 1/4W 1 C1,25 Ceramic, 10 pfd, — £10%, SOV | 2
nace | Solid, 2.7 ohm, +20%, 1/2W | 1 oy: Ceramic, 10 pfd, 40.25 pfd, SOV |
|
|
es
Ceramic,
oe
’
£10%,
=
|
'
Ref.
Bilin
;
C4
Ceramic,
O.
mfd,+10%,
1
C6,26 Ceramic, 3 pfd, +0.25 pfd, 50V 2
C7,28
Ceramic,
30
pid,
+10%,
50V
2
TUNER (RF AMPLIFIER) CIRCUIT BOARD C3 Ceramic, 500 pid. 210%. SOV ;
cg Ceramic 7 pfd, +10%, 50V 1
R-A70674 Circuit board assembly 1 C10,29 31 Ceramic, 0.001 mfd,+10%, 50V | 3
Loo.7
R
-S870346
ANT
coil
assembly,
SW
+
MW
1
C12
Ceramic,
2
pfd,
+0.25
pfd,
50V
i
4
Tap.
Screw,
Pan
Hd.,
3x
8
1
C15,33,
Ceramic,
0.04
mfd,
+100
—0%,
50V
i
4
| Washer, Flat, 3.36 x 80 x 0.5t 1 42,55 |
CV1,2,3.4 | R-C1710 | Variable capacitor J C20 Ceramic, 0.02 mfd, +10%, SOV | i
R-445081 | Cushion, VC 1 C23 24 Ceramic, 0.01 mfd, +20%, 50V 2
R-257026 {| Spring, VC 1 C32 : Ceramic, 100 pfd, +10%, 50V | 1
| Screw, Pan Hd., 2.6 x 4 2 C29 Ceramic, 10 pfd, +10%, SOV 1
CT4,5,6,7 | R-CO0046 | Trimmer 2 C45 Ceramic, 13 pfd, +10%, SOV | 1
CT1,2,3 | R-CO710 | Trimmer 3 C1722 Ceramic, 0.02 mfd, +10%, 25V | 2
bs] ! R-W2773 | ANT coil, FM 1 or Ceramic, 18 ofd, +10%, 50V 1
L2 1R-W9515 =| VHF coil 1 crs | Styrol, 200 pfd, +10%, 50V 1
L
;R-W9018
0)
VHF
coll
1
C44
:
Styrol,
1300
pfd,
+5%,
50V
1
L4 R-W9701 | VHF coil 1 C46 | | Styrol, 350 pid, +10%, SOV i
se) )R-W8548 | Coll, SW Oscillator 1 C19,27,48 | Myiar, 0.022 mfd, +20%, 50V 1 -3
LS tR-W3549 | Coil, MW Oscillator 1 C36.41 | | Mylar, 0.01 mfd, +20%, 50V a,
L10 | R-W1059_— | Choke coil | 1 C40 | | Mylar. 9.0075 mid, +20%, 50V | 4
Ti VR-WOT757 | IF Transiormer, FM 1 C43 | Mylar, 0.0033 mfd, +20%, SOV 1
12 | R-W5T 758 | IF Transformer, FM 1 C54 Mylar, 0.0047 mfd, #20%, SOV 1
2 | R-W5ST 759 | IF Transformer, FM 1 C1416, | Mylar, 0.039 mid, +20%, 50V 4
T4 iR-W5T 760 IF Transformer, FM 1 18 37 |
T5 i R-W5T761 IF Transformer, FM 1 C47 Mylar, 0.0022 mfd, +20%, SOV 1
T6 /R-W5T762 1F Transformer, FM 1 C21.30 Electrolytic, 4.7 mfd, 6.3V 5
ze | R-W5T 763 IF Transformer, AM 1 C3435 Electrolytic, 220 mfd, 10V i 9
TS R-WST 764 | \F Transformer, AM 1 C38 Electrolytic, 10 mfd, 10V 71
T9 R-W5T765 | tF Transformer, AM 1 C49 Electrolytic, 1 mfd, 10V ]
SVR R-R110704 | Pre-set resistor 7] C51 Electrolytic, 0.22 mid, 10V 1
. R-245128 | Eyelet jug 11
R-24372 | Tip, Rod antenna 1 |
|
PARTS
HUMBER
GF
STR
TAPE
R-SG71S7 —8-
ea Aa Pr Chetan alsin asst BENG hn TP Ma RN SIR ECT
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PARTS LIST
MPX (FM STEREO DECODER) CIRCUIT BOARD
Schematic
Location
AUDIO AMPLIFIER CIRCUIT BOARD
Schematic BAe O't
|
oO
|
%s ircust board embi 1 C218,318 | | Electroiytic 47 mid/6.3V Z
102 ieee aT oe 1 C2Z15;515 | Electrolytic 1 mfd/10V 2
L103 R-W4713 MX coil 1 ey es RS i Electrolytic 0.22 mfd/16V 4
L151,152
|
R-W1751
Choke
coil,
40m#
1
214,314
|
SVR101
R-R110714
Pre-set
resistor,
1K
ohm
1
C213,313
Electrolytic
1
mfd/16V
2
| R-$1803 Terminal 1
| Eyelet 2x 3 7 CASSETTE AMPLIFIER CIRCUIT BOARD
| IC, LA3301 1 . | R-A70670 Circuit board assembly 1
L612,712 R-W1719 Bias trap 2
RESISTORS SVR611,711|R-R110705 | Pre-set resistor, 50K 2
| R-S27112-12 | Plug, 12P 1
R151 Carbon, 4.7K ohm +5%, 1/4W 1 R-S47155 Slide switch, RECORD-PLAY- 1
R152 Carbon, 220 ohm +10%, 1/4W 1 BACK Select
R153 Carbon, 390 ohm = 10%, 1/4W 1 R-237112 Shaft angle
R154,155 Carbon, 3.3K ohm +10%, 1/4W 2 L601 R-W1046 Choke coil, 40uH
R156,157 Carbon, 12K ohm = +10%, 1/4W 2 Eyelet, 2x 3 10
R158 Carbon, 820 ohm = +10%, 1/4W 1 R-257098 Pin 10
= R-257099 Pin large 2
CAPACITORS
| SEMICONDUCTORS
C156 | Styrol, 10000 pfd, +£10%, 125V 1
C157 | Styrol, 2500 pfd, +10%, 125V 1 IC, LA3155 1
C155 | | Mylar, 0.0015 mfd, +20%, SOV | TR6E02,702 Transistor, 2SC536 D 2
C162,163 | _ Mylar, 0.001 mfd, +20%, 50V 2 D601 ,602 Diode, 1S188 AM 2
C160,161 | i Mylar, 0.0047 mfd, +20%, SOV 2
C164.165 | Mylar. 0.0068 mfd, +20%. SOV 2 RESISTORS
C166,167 Mylar, 0.0033 mfd, #20%, 50V 2
C169 | Mylar, 470 pfd, +20%, 50V 1 R611,711 | Carbon, 100hm +5%, 1/4W 2
C158,159 | Electrolytic 1 mfd/10V 2 R612,712 | Carbon, 120K ohm +5%, 1/8W | 2
C151,154 | Electrolytic 4.7 mfd/6.3V 2 R605,613, | Carbon, 27K ohm = +5%, 1/8W 1 3
C168 Electroiytic 330 mfd/10V 1 713 \
ee Carbon, 10K ohm 410%, 1/4W | 2
' Carbon, 150K ohm +5%, 1/8W 2
AUDIO AMPLIFIER CIRCUIT BOARD 620,720 oe ee eae Ce
Carbon, 56K ohm = +5%, 1/8W 2
R-A70676 Circuit board assembiy 1 R622,722 | Carbon, 390K ohm +5%. 1/8W | 2
R-235128 Eyelet lug 1 R601 602 Carbon, 220 0hm +5%, 1/8W | 2
R-12004 Oval lug 3 R603 Carpon, 330 0hm = +5%, 1/8W ea
Eyelet 1.6x3 1 R623,723 Carbon, 6.8K ohm 45%, 1/8W | 2
| | Eyeiet 2x3 4 R606 | Solid, 10 ohm, +20%, 1/2 | 1
|
SEMICONDUCTORS
|
CAPACITORS
|
I |
| IC, HA1314 2 C605,606, | Mylar, 0.01 mfd, +20%, 50V 4
TR201,301 Transistor, 2SC644 R 2 629,729
C616,716 | Mylar, 0.015 mfd, +20%, 50V 2
RESISTORS C621,721 | Mylar, 0.002 mfd, +20%, 50V 9
| seen Myiar, 0.001 mfd, 220%, SOV | 4
9 . ;
R211,311
Carbon,
6.8K
ohm
+5%,
1/4W
2
6820720
Sienna
oo
;
oti arbon, 6. ohm 15%, 720
R212.312 | Carbon, 39K ohm 45%. 1/4W 2 C613/713 Alea Be eee | :
R213,313 Carbon, 10K ohm +5%, 1/4W 2 C626 726 | ic, 80 pid, = £10%, 50
Ceramic, 150 pfd, +10%, 50V Z
R214,314 Carbon, 2.2K ohm +5%, 1/4W 2 C604 Ceramic. 0.04 mfd. +100 —0% 1
R215,315 » Carbon, 12K ohm = $5%, 1/4W y | a eg te ee
( 9
Soeeoe
:
Carbon,
1Mohm
=
5%,
1/4W
4
ee
|
|
Electrolytic
220
mfd/10V
|
4
R217,317 Carbon, 68 ohm +5%, 1/4W 2 C615,715, =n : z
R218,318 | Carbon, 82K ohm +5%, 1/4W 2 623,723, | crectralytic 1 mid/10V | =
Bl | | Carbon, 10 ohm 45%, 1/4W | 2 625,725 | |
i Carbon, 1K ohm +5%, 1/4W | 1 C614,714 | | gy | )
j i Ke ectrolytic 47 mfd/§.3V
eee
|
eee
gee
an
|
|
Electrotytic
10
mfd/10V
3
| | |
C611,771 i .
CAPACITORS Electrolytic 1 mfd/16V 2
C216,316 Ceramic, 0.001 mfd, +10%, 25V 2 |
C219,319 Ceramic, 100 pfd, +10%, SOV 2
C220 ,320 Ceramic, 500 pfd, +10%, 50V 2
CZ22.322 Ceramic, 200 pfd, +10%, 50V 2
C225, 325 Ceramic, 20 pfd, +10%, SOV 2 |
C221,321 Myiar,0.04 mfd, 420%, 25V 2 |
C226 326 Mylar,0.001 mfd, +20%, 50V 2
C201 | Electrolytic 2200 mfd/16V 1 |
C2V73t7 Electrolytic 220 mfd/10V 2 |
C212,312 Electroiytic 33 mfd/6.3V 2
C224 324 Electrolytic 470 mfd/10V 2
C223.32723 Electrolytic 100 mfd/6.3V 2
C2062,203 Electrolytic 100 mid/10V 2

PARTS LIST
Schematic
|
.
—_
CASSETTE BIAS OSC CIRCUIT BOARD |
R-A 70677 Circuit board assembly
SVR651,652 | R-R11018 Pre-set resistor, 250K ohm
L651
R-W8737
Oscillator
Coil,
Bias
TR651,652
Transistor,
2SC536D
RESISTORS
R661
Carbon,
39K
ohm
+5%,
1/4W
R662
Carbon,
12K
ohm
+5%,
1/4W
R663
Carbon,
4.7K
ohm
+5%,
1/4W
R664
Carbon,
1
ohm
+5%,
1/4W
R665
Carbon,
68
ohm
+5%,
1/4W
CAPACITORS.
C661 Mylar, 0.047 mfd, +20%, 50V
C662
Mylar,
0.01
mfd,
+20%,
50V
C663
Mylar,
0.0068
mfd,
+20%,
50V
Bear Styrol, 1800 pfd, +10%, 50V
C651
Electrolytic 100 mfd/10V
8-TRACK AMPLIFIER CIRCUIT BOARD .
| R-A70671 Circuit board assembly 1
L412,512 R-W1719 - Bias trap. 2
SVR411,511 | R-R110705 Pre-set resistor, SOK ohm 2
R-S27112-12 | Plug, 12P 1
S4 R-S47149 Slide switch, RECORD-PLAY- 1
BACK Select _
R-S47150 Push switch 2
L411,511 R-W6724 Choke coil, 10 mH 2
R-W1046 Choke coil, 40 mH 2
Eyelet 1.6 x 3 10
R-257098 Pin 9
R-257099 Pin 2
SEMICONDUCTORS
IC, LA3155 1
TR401,/501 Transistor, 2SC536 E 2
TR402,502 | | Transistor, 2SC536 D 2
| RESISTORS
{Carbon type, +10%, 1/4W unless otherwise noted)
R411,511 Carbon, 100 ohm = +55%, 1/4W 2
R412,512 Carbon, 120K ohm +5%, 1/4W 2
R413,513 Carbon, 8.2K ohm +5%, 1/4W 2
R414,514 Carbon, 6.8K ohm +5%, 1/4W | 2
R415,515 Carbon, 82K ohm = +10%, 1/4W 2
R416,516 Carbon, 82K ohm = +5%, 1/4W 2
R417,517 ' Carbon, 180K ohm +5% 1/8W 2
R418,518 Carbon, 180 ohms +5%-1/8W 2
R419,519. | Carbon, 1.2K ohm +5% 1/8W 2
R420,520 | Carbon, 56K ohm 45% 1/8W 2
R421,521 | Carbon, 68K ohm = 45% 1/8W 2
R422,522 Carbon, 47K ohm +5% 1/8W | 2
R423,523 Carbon, 6.8K ohm 45% 1/gw | 2
R426,526 Carbon, 22 ohm 45% 1/8W | ?
R401, 402, | Carbon, 220 ohm 45%, 1/BW 3
403 © . es
| CAPACITORS |
C416,516 Mylar, 0.03 mfd, +20%, 50V 2
C418,518 Mylar,0.022 mfd, +20%, 50V 2
C421,521, Mylar, 0.001 mfd, +20%, 50V 6
422,522,
426,526
;
C428 528 Mylar, 470 pfd, +10%, 50V 2
C420 ,520 Styrol, 2300 pfd, +5%, 50V 2
/C413,513 | Ceramic, 100 pfd, +10%, 50V 2
C401 402, Electrolytic 220 mfd/10V 4
403,404 |
C423 ,523, Electrolytic 1 mfd/10V 4
425,525 |
C414,514 Electrolytic 4.7 mfd/6.3V 2
| C914,964
,
Locaticn
0412512, | Electrolytic 10 mfd/10V g
415,515,
417,517,
419,519
C405 Electrolytic 470 mfd/16V 1
C411,511 Electrolytic 1 mfd/16V 2
8-TRACK BIAS OSC CIRCUIT BOARD
R-A70678 | Circuit board assembly | 1
L451 R-W8768 Oscillator Coil, Bias 1
TR451,452 Transistor, 2SC1317 R 2
RESISTORS & CAPACITORS
R461 _ Carbon, 10K ohm +5%, 1/4W 1
R462 Carbon, 4.7K ohm +10%, 1/4W 1
R463 ,464 Carbon, 4.7 ohm +10%, 1/4W 2
R465 ,466 Carbon, 1 ohm +10%, 1/4W | 2
R467 Carbon, 22 ohm +10%, 1/4W 1
C461 ,462 Mylar, 0.033 mfd, +20%, SOV 2
C463 Mylar,0.05 mfd, +20%, 50V 1
C464,465 Mylar, 0.022 mfd, +20%, 50V 2
C451 Electrolytic 100mfd/10V 1
R-A70679 |.Circuit board assembly 1
Eyelet 2x3 5
TR901,951 Transistor, 2SC644 Ror S 2
Carbon, 560 0hm +5%, 1/4W
Carbon, 22K ohm +5%, 1/4W
Carbon, 470K ohm =5%, 1/4W
Carbon, 1K ohm +5%, 1/4W
Carbon, 18K ohm 75%, 1/4W
Carbon, 100 ohm = +5%, 1/4w
Electroiytic 100mid/10V
Electrolytic imfd/16V
Electrolytic 0.1mfd/16V
R913,963
R912,963
R911,961
R915,965
R914,964
R901
C901
C911,961
RESISTORS & oa |
POWER SOURCE CIRCUIT-BOARD |
R-A70673 | Circuit board assembly
R-23275 Eyelet lug
R-S1749 Selenium rectifier, 10DC1
RESISTORS & CAPACITORS |
NOM = = MM DDN hO
=.
0
1
R813 Solid, 10 ohm, +20%, 1/2W 1
C812,813 | Ceramic, 0.02 mfd, +80 —20%, 2
50V_
C814 Electrolytic 220 mfd/10V 1
CONTROL CIRCUIT BOARD | | |
R-A70672 Circuit board assembly 1
RESISTORS
R251,351 Carbon, 12K ohm +5%, 1/4W
R252,352
Carbon,
470
ohm
=+5%,
1/4W
R253,353 Carbon, 680 ohm = £5%, 1/4wW
R254
354
Carbon,
5.6K
ohm
+5%,
1/4W
R255,355 Carbon, 56K ohm = +5% 1/4W
R256,356 Carbon, 10K ohm = 5%, 1/4W
| CAPACITORS
C251,351 Mylar,0.01 mfd, +20%, 50V
C253,353, Myiar, 0.039 mfd, +20%, 50V
254,354
C256,356 . Mylar, 470 pfd, +20%, 50V
C252,352 Mylar, 0.015 mfd, +20%, 50V
255.355 Mylar, 0.001 mfd, +20%, 50V
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CIRCUIT BOARD DIAGRAM (Bottom View)
CONTROL CIRCUIT BOARD
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CASSETTE PCB S3-3 PLAY
ERASE HEAD(—)
CASSETTE BIAS OSC CIRCUIT BOARD
CASSETTE P.C.6
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HLYVS
ERASE HEAD RCH (+)
ERASE HEAD RCH (-)
ERASE HEAD LCH(+)
ERASE HEAD LCH(-)
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PARTS LIST
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151 0304
151 03018
151 0302
151 0303
151 0305
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151 0401
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151 0478
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11 0305
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424 0801
151 0804
11 0608
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2L4
R-$57018
R-S07131
Description
Chassis deck
Metal mount
Guide roller
Leaf switch
Cam bracket assembly
Cam spring
Main cam
Cam channel indicate
Pressure spring plate
Oilless meta!
Fiywheel
Channel change cam
Washer
Film washer
Metal bracket, Channel change jever
Relay
Base assembly, Channel change lever
Channel change lever -
Spring
Tape guide
Metal bracket
Cramper assembly
Cramper roller
Spacer
Washer
Spring cramper
Fine pulley
Rubber belt
Lug, Wraparound
Holder shaft assembly, head
Shifter spring
Head hoider
Azimuth screw
Azimuth screw, verticai
Earth terminai
Spacer
Strip terminai
Motor
Playing head, 8-track
Tap. Screw, Pan Hd.,3 x6
Tap. Screw, Pan Hd.,3x8
Tap. Screw, Pan Hd., 2.6 x5
Tap. Screw, Pan Hd. with Washer
*SP", 3x5
Screw, Pan Hd., 2.6 x 6
Screw, Pan Hd., 3 x 12
Screw, Pan Hd., 3 x 10
Screw, Pan Hd., 2.6 x 8
Washer, “C'’, ETWJ-3.2
Washer, “‘C’', ETWJ-3
Washer, ’C’’, ETWJ-2.3
Washer, ‘‘C’’, ETWJ-1.5
Washer, Plane, 4x 10x 0.8
Washer, Plane, 2.6 x 7.5 x 0.5
Washer, Spring M3
Nut, Hex Hd., M3
Tap. Screw, Pan Hd. with Washer
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CIRCUIT BOARD AMPLIFIER (Bottom View)
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CONTROL °. C.B (vR~204) a.
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HEAD PHONE JACK (R}
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-——__+__—>P0WER SW (RED)
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BAT T{—} (BLACK }
HEAD PHONE JACK (—)
——— AF. P.C.3(-)
Le PHONO MOTER(—}
PHONO MOTER (+)
{GOLD}

MPX (FM STEREO DECODER) CIRCUIT BOARD |
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PARTS LIST
El [ede
CASSETTE MECHANISM (TM-68MSN)
,
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
7
18
28
29
_30
31
32
33
34
35
36
37
39
40
41
42
43
44
45
46
47
48
49
50
51
33
141 0 3119 01403
141 0 7319 06900
141 0 1619 06801
141 2 1619 13700
R-2670709
141 0 7319 07600
141 2 5739 00200
141 2 7319 02100
141 2 7519 00500
141 2 8519 06900
141 2 3769 00700
141 0 5729 00200
141 0 7319 02200
141 0 5419 GO700
141 2 8519 09800
141 2 8519 00900
141 2 8519 04500
141 2 5219 03100
141 0 3519 00801
141 2 3519 03201
141 2 4469 00200
141 0 5319 00100
141 2 5319 00200
141 2 5369 00200
141 2 5369 00300
141 2 8519 00700
141 2 5519 01700
141 2 5369 00400
141 2 4539 00200
141 2 7139 00200
141 2 7319 00900
141 28519 01200
141 2 8529 00300
141 2 4219 03700
141 2 4219 03800
141 05519 00100
141 2 5559 00400
141 25719 00400
141 25519 00800
141 2 4569 00300
141 2 5519 00400
1144 2 4419 00200
141 2 4569 00100
141 28519 01400
141 2 5529 00600
141 2 5719 00600
141 2 8519 01300
141 0 5519 00200
141 0 73719 00300
141 2 8519 01700
141 2 8259 00400
141 0 7319 00400
141 0 5519 00700 }
141 2 8519 01800
141 2 5649 00201
141 2 4179 00100
141 2 4219 04600
141 0 7419 03700
147 2 7419 10900
141 28219 10200
141 2 5729 04700
141 2 7419 10800
141 2 8519 22400
141 2 8419 00600
141 2 8539 01700
141 2 8429 00700
141 2 8519 19100
141 2 7439 00700
141 2 7529 05200
141 2 8519 06200;
141 2 7319 03700
141 2 8519 06400
141 0 7439 00300
147 2 7439 00200
141 2 7529 08800
141 2 7529 09000
141 2 4459 03500
1412 4219 -
Assy Chassis, TM-68MSN
Assy Base Slide
Assy Button, Select
L Button, Select
Inlay, Select Button
Assy Sub-plate, Pushout
Support, Cassette Pushout Plate
Plate, Cassette Pushout
Spindle, Cassette Push Sub-plate
Spring, Cassette Pushout Plate
Spacer, Head
Assy Bushing Capstan
Assy Slide Base, ARM
Assy Pinch Roller
Spring, Pinch Roller x
Spring, Slide Base
Spring, Head Adjust
Flywheel & Capstan
Assy Support, Flywheel
Support Fiywheel
Pad Flywheel Spdi
Assy Reei Plate
Reel Plate
Fix Reel Plate 8
Fix Reei Plate C
SPG Ree! Plate
Ring Reel Plate
CAP, Reel Plate
Washer, Spindle
Plate, Brake
Slide, ARM PWR SW
Spring, Slide ARM PWR SW
Spring, Brake
Screw, Plate, Brake
Screw,, ARM REW Roller
Assy Take-up Pulley
ARM, Take up Pulley
Bush, Take up Pulley
Take up Pulley
Friction Ptate
Driving Roiler
Feit, Take up Pulley
Washer, Spring
Spring, Friction Plate
Spindie, Take up pulley
Bushing, Friction Plate
Washer, 1.60 x 4@ x 0.2t
Spring, Take up Pulley
Assy idler
Assy Base, idler
Spring, Idler
Roijer, tdier Base
Assy Arm, REW Roller
Assy Rewind Roller
Spring, Rewind Roller
Square Driving Belt
Nut
Screw, Base Siide
Assy Lever, Stop
b Lever Stop
+ Contact Tape
“ Hoider
Lever, Stop
Spring, Lever Stop
Interlock Lever
Soring, interiock Lever
Lever, RP Switch
Spring, Lever, RP Switch
Stopper, Slide Base
Shaft, Slide Base, Stopper
Spring, Slide Base, Stopper
Lock, Cassette Case
Spring, Cassette Case Lock
Screw
Assy Hoider, Cassette Case Right
. Holder Cassette Case R
PIN Cassette Case
Stop PIN Cassette Case
Cushion Cassette Case
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141 0 7439 00400
141 2 7529 09000
141 2 7419 03300
141 2 3529 01800
141 2 8519 06700
141 2 4459 03500
141 0 1149 03200
141 2 1149 09700
141 2 1149 01601
141 2 8539 01200
141 2 1519 01100
141 2 4419 01500
141 2 1319 05100
141 2 4539 06700
141 45279 70152
141 4 2319 70010
141 4 2319 70930
CASSETTE MECHANISM (TM-68MSN)
Assy Hoider Cassette Case Left
Stop PIN Cassette Case
Lever, Cassette Case L
Spacer, Cassette Case
Spring, Cassette Case Lever 8
Cushion, Cassette Case
Assy Case Cassette
Case Cassette Top
Case Cassette Bot
SPG Cassette Push
Reflection ALM
Cushion
Clear Window
Washer
Pan Hd. Screw, M2 x 4
Pan Hd. Screw, 2.6 x 5
Pan Hd. Tapping Screw, M2.6 x 6
Spring, Washer, M2.6
Washer, M4
E Ring, 1.50
E Ring, 2¢
E Ring, 2.56
E Ring, 36
Mylar Washer, 2x 4x 0.2t
Nylon Washer, 2 x 7 x 0.3t
Round Washer, 8 x 14 x 0.5t
Washer, 2x 7 x 0.3t
Flat Hd. Screw, M2 x 12
Pan Hd. Screw, 2.6 x 4
Motor
Switch, Power
Switch, Leaf
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EXPLODED VIEW (Mechanism)
@ [Pe
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TOP VIEW
BOTTOM VIEW
SANYO ELECTRIC TRADING CO., LTD.
33, Hiyoshicho 2-chome,
Moriguchi, Osaka, 570, Japan
MW-388 OCTOBER 1974 CP2000 Printed in Japan
~20-

MODIFICATION NOTICE
STEREO MUSIC SYSTEM
Chassis Nos.
Serial Nos.
Run Nos.
IN at
Wate
Date Issued by
The following corrections should be made in the SERVICE MANUALS and PARTS (PRICE) LIST. |
Section i Part No. Description Reason
1
From R-A70685 | Panel assy
Vabinet| 2c 5
‘To ° , R-A73768 Panel assy without R-A73769 1
R-A7 3769 ®ix plastic board assy, Azimuth
t-327287 #ix plastic board
R-2670708 Decoration metal, cassette azimuth
The ¥ix plastic board assy. will consist of the two parts listed above.
REASON FOR MODIFICATION
A... Standardization Cesk Improvement of reliability sia Miss vrint
B ..... Change of materials Du: Improvement of performance 7
SANYO ELECTRIC TRADING CO., LTD.
OSAKA, JAPAN
Printed
in
Japan
509
|
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— AFok