DOWNLOAD Sony MHC-S3 / TA-S3 Service Manual ↓ Size: 1.85 MB | Pages: 24 in PDF or view online for FREE

3

This set is a component of the MHC-S3.
The MHC-S3 system configuration is as shown below, and there-
fore it does not operate normally unless all four components are
connected.
In performing the repair, connect all components with the system
cables.

The precaution to the users is described on the label stuck on the
back panel (CD player) and in the troubleshooting section in the
Operation Manual.

POWER SUPPLY

AC IN

TA

SYSTEM & CD 

µ

con

ST

CDP

TC 

µ

con

TC

DISPLAY

In checking the FRONT AMP board, prepare jig
(extension cable J-2501-087-A: 1.25 mm Pitch, 23 core, Length
300 mm)
(Fig A)

Turn over the FRONT AMP board with Heat Sink, THP board 
and RELAY board connected.

Remove the back panel 
(2CD/VCD) section.

Remove the fan motor 
connector lead wire.

FRONT AMP board
(CN104)

Connect jig (extension 
cable J-2501-087-A 
to the FRONT AMP board (CN104) 
and PANEL board (CN700).

PANEL board (CN700)

4

This section is extracted from
instruction manual.

The items are arranged in alphabetical order.

Refer to the pages indicated in parentheses ( ) for details.

P

o

O

p

6

3 4 5

7

8

2

9

q;

qa

qs

qd

qf

qg

1

DIGITAL 9 (28, 32)
ENTER/O/o/P/p 2 (9, 12, 18,

19, 22–27)

EQ qa (24)
EQ ON/OFF qs (9, 24)
FILE SELECT q; (20, 24)
FUNCTION 8 (9, 11, 12, 17, 18,

28)

GROOVE 5 (20)
MOVIE MODE 4 (20, 21)
MULTI CHANNEL DECODING

indicator 6 (22)

MUSIC MODE 3 (20, 21)
PHONES jack qg
SET UP qd (23–26)
SUR qf (22)
VOLUME 7
@/1 (power) 1 (8, 9, 32)

A/V amplifier

x

hH

H

hH

O

o

P

p

M

m

X

>

.

1

wa

qf

9

wf

wd

ws

qj

2

3

4

5

0

qs

qa

qd

6

7

8

qh

qg

ql

qk

w;

wk

wj

wh

wg

CD H wk (11, 12)
CHECK 3 (12)
CLEAR 4 (12)
CLOCK/TIMER SELECT qg

(19, 27)

CLOCK/TIMER SET qh (9, 18,

26)

DBFB qd (20)
DISPLAY qk (10, 13, 15, 26, 32)
D.SKIP 2 (11)
ENTER wa (9, 12, 14, 15, 18, 19,

22–27)

EQ qa (24)
EQ ON/OFF qs (9, 24)
FUNCTION w; (9, 11, 12, 17, 18,

28)

GROOVE qj (20)
SET UP q; (23–26)
SLEEP 5 (26)
SUR ql (22)
TAPE A hH wj (16)
TAPE B hH wh (16, 17)
TUNER/BAND wg (14)
TUNING + 7 (14)
TUNING – ws (14)
VOL +/– qf

@/1 (power) 1
X (pause) 8
x (stop) 6
. (go back) wf
> (go forward) wd
m (rewind) ws
M (fast forward) 7
O

/o/P/p 9

5

• This set can be disassembled in the order shown below.

3-2. COVER

(Page 6)

3-3. FRONT PANEL SECTION

(Page 6)

3-4. BACK PANEL (2CH/VCD) SECTION

(Page 7)

3-5. FRONT AMP BOARD

(Page 7)

SET

Note 1: The process described in     can be performed in any order.

Note 2: Without completing the process described in     , the next process can not be performed.

6

 Follow the disassembly procedure in the numerical order given.

2

two screws
(case 3 TP2)

2

two screws
(case 3 TP2)

1

three screws
(BVTT3 

×

 6)

4

Remove the cover
in the direction of arrow 

A

.

A

3

3

4

three screws
(BVTP3 

×

 8)

2

screw
(BVTP3 

×

 8)

6

front panel section

5

two 
claws

5

two claws

5

claw

3

lug

1

wire (flat type) (23 core)
(CN104)

3

lug

3

lug

2

screw
(BVTP3 

×

 8)

2

screw
(BVTP3 

×

 8)