Sanyo M-G12 User manual

MODIFICATION NOTICE
ae SANYO
STEREO
CASSETTE PLAYER
Date:
September,
10,
1983
142
385
16
This Sheet has been modified from original model of M-G12. Against the original model, the pre-amplifier and the
power amplifier are constructed by one IC (LA4520).
The following corrections should be made in the SERVICE MANUALS and PARTS (PRICE) LIST.
For other items, refer to the Service Manual for the original model (WM-8805).
Section: PACKAGE
Non-modified
Part N
Description
art
No.
Post-modified
Part No.
141-6-1419-65300
141-6-1449-82600
Plain Pad 141-6-3919-42000
Individual Carton
Styrofoam Case
141-6-1419-71700
141-6-1449-91600
141-6-3919-45400
Section: ACCESSORIES
4-1529-70240
142-6-4119-31680
Headphones
Instruction Manual
4-1529-70370
142-6-4119-31876
Section: CABINET
Non-modified
Description
Part
No.
Post-modified
Part No.
141-0-1119-88101
141-2-4219-10602
4-1329-78100
141-2-2149-18300
141-2-4219-27200
Completed Cabinet Top
Screw, +M1.7x4.0
Amplifier P.C.B. Assy
Cabinet Bracket
Screw, +M1.7x5.0
NOT INTERCHANGEABLE
REASON FOR MODIFICATION
A: ..... Standardization Ce. Improvement of reliability
B: ..... Change of materials
D: ..... Improvement of performance
141-0-1119-88110
141-0-1939-02690
‘wee Misprint G: .....
re Registration
SANYO ELECTRIC INC.
Printed in Japan 7,000
Effective from xxx
Q'ty of initial production before modification Identification of modified unit.
Delete
Delete
Delete
WM-10728

Ref.
No.
Part No.
Description
AMPLIFIER P.C.B. ASSY
141 0 1939 02690
141 2 4729 04700
4 2319 74490
4 2319 75610
4 2319 74630
4 2359 75782
4 2359 72954
4 2229 73910
4 2229 73900
4 2229 73511
207 5 1484 52010
206 5 1555 51220
205 5 9040 44210
204 5 9000 00200
CD4 7 663A 0001V
CD4 7 663A 0001V
CD4 7 663A 0001V
CD1 0 6160 0001V
CD3 3 7100 0001V
CC1 5 2500 KEO0C
CD2 2 6100 0001V
CM33 3500 KOOMV
CD1 0 5500 0001V
CD4 7 663A 0001V
CD2 2 763A 0001V
CM33 3500 KOOMV
CC1 5 2500 KEOOC
CD2 2 6100 0001V
CM33 3500 KOOMV
CD1 0 5500 0001V
CD4 7 663A 0001V
CD2 2 763A 0001V
CM33 3500 KOOMV
CD4 7 4500 0001V
Cl2 2 3250 KFOOC
Cl2 2 3250 KFOOC
RD2 7 1251 JS000
RD6 8 1251 JSO00
RD4 7 1251 JSO00
RD1 3 1251 JS000
RD1 0 4251 JS000
RD3 9 2251 JS000
RD1 5 2251 JSO00
RD7 5 2251 JS000
RD1 5 3251 JNOOO
RD2 2 A251 JS000
RD2 4 1251 JS000
RD1 0 1251 JS000
RD1 3 1251 JSO00
RD1 0 4251 JSO00
RD3 9 2251 JSO00
RD1 5 2251 JS000
RD8 2 2251 JS000
RD1 5 3251 JSO00
RD2 2 A251 JSO00
RD2 7 1251 JSO00
RD1i 0 1251 JS000
RD4 7 1251 JSO00
RD2 7 1251 JSO00
RD5 6 2251 JSO00
RD1 2 2251 JSO00
Amplifier P.C.B. Assy
Staple, 10mm
Leaf Switch (Power)
Slide Switch (Tone)
Push Switch (Mute)
Jack 3P (Headphones)
Ext. Power Socket
P.C.BOARD PARTS LIST
Control Volume (Volume, A-20kQ)
Control Volume (Balance, B-20kQ)
Potentiometer (B-3kQ)
IC, LA 4520
IC, LA 5512
Diode, DS 442
Thermistor, SDT 20
Electrolytic 47 uF
Electrolytic 47 uF
Electrolytic 47uF
Electrolytic 10uF
Electrolytic 3304F
Ceramic 0.0015 uF
Electrolytic 22uF
Mylar 0.033 uF
Electrolytic 1uF
Electrolytic 47 uF
Electrolytic 220uF
Mylar 0.033.F
Ceramic 0.0015.4F
Electrolytic 22uF
Mylar 0.0334F
Electrolytic 1uF
Electrolytic 47uF
Electrolytic 220uF
Mylar 0.033 uF
Electrolytic 0.47uF
Boundary 0.0224F
Boundary 0.022uF
Carbon 2700.
Carbon 6800.
Carbon 4700,
Carbon 1300,
Carbon 100k.
Carbon 3.9kO
Carbon 1.5kO
Carbon 7.5kO,
Carbon 15kQ
Carbon 2.20,
Carbon 2400,
Carbon 1000.
Carbon 1300
Carbon 100kON
Carbon 3.9kQ
Carbon 1.5kN
Carbon 8.2kO0
Carbon 15kQ,
Carbon 2.20,
Carbon 2700,
Carbon 1000,
Carbon 4700.
Carbon 2700.
Carbon 5.6K.
Carbon 1.2kO,
6.3V
6.3V
6.3V
16V
10V
50V
10V
50V
50V
6.3V
6.3V
50V
50V
10V
50V
50V
6.3V
6.3V
50V
50V
25V
25V
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
1/4W
+10%
+10%
+10%
+£10%
10%
+10%
+10%
+10%
+5%
+5%
+£5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
+5%
Q’ty
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NOTES:
1. Parts order must contain Model Number, Part Number and
Description.
2. Ordering quantity of screws and resistors must be multiple of
10 pcs.

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SCHEMATIC DIAGRAM
ic' LA4520
PRE/POWER AMPLIFIER
Jl
fol HEADPHONES JACK
HDI-1 "4
PLAYBACK HEAD
v2
EXT, POWER JACK
Ta)
AA CELL x4 =
6V 1
-S
Se S|
-20K
BALANCE b outer
CONTROL
R2
680
D2 c303- P301 §
aos @scr-isia 0.022» B-3K
(BATTERY)
MOTOR
ic301 LA5512
MOTOR GOVERNOR CIRCUIT
[No | Name | Position |
S1_ | Power Switch OFF
Tone Switch
S3 | Mute Switch

WIRING DIAGRAM

HEADPHONE EXPLODED VIEW
net
Part
No.
Description
Q’ty
HEADPHONES
4 1529 70370 Headphones
141 2 1769 06400 Slider
141 2 3529 36800 Slide Adjustor
141 2 8219 32400 Stopper
141 2 1769 08100 Hanger, Left
141 2 1769 08101 Hanger, Right
141 2 1259 05401 —_ Housing, Right
4 1529 70380 Ear Speaker
141 2 4469 44400 Ear Pad
141 2 1259 05400 Housing, Left
0 4 2369 73860 Plug Cord
-O0ONOORWD =
=e. =e ND in, OSD > Ronee ae