Sony TA-S7AV Service Manual ▷ View online
2
TA-S7AV
TABLE OF CONTENTS
1.
SERVICING NOTES
...............................................
3
2.
GENERAL
...................................................................
4
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
5
3-2. Cover ...............................................................................
6
3-3. Front Panel Section .........................................................
6
3-4. Back Panel (AV) Section ................................................
7
3-5. FRONT AMP Board .......................................................
7
4.
TEST MODE
..............................................................
8
5.
DIAGRAMS
5-1. Note for Printed Wiring Boards
and Schematic Diagrams ................................................ 10
5-2. Printed Wiring Boards – FRONT AMP Section – ........ 11
5-3. Schematic Diagram – FRONT AMP Section (1/2) – .... 12
5-4. Schematic Diagram – FRONT AMP Section (2/2) – .... 13
5-5. IC Pin Function Description ........................................... 14
5-6. Printed Wiring Board
5-3. Schematic Diagram – FRONT AMP Section (1/2) – .... 12
5-4. Schematic Diagram – FRONT AMP Section (2/2) – .... 13
5-5. IC Pin Function Description ........................................... 14
5-6. Printed Wiring Board
– SURROUND AMP Section – ...................................... 14
5-7. Schematic Diagram
– SURROUND AMP Section – ...................................... 15
5-8. Printed Wiring Boards – CONTROL Section – ............ 16
5-9. Schematic Diagram – CONTROL Section – ................. 17
5-10. Printed Wiring Boards – POWER Section – ................. 18
5-11. Schematic Diagram – POWER Section – ..................... 19
5-9. Schematic Diagram – CONTROL Section – ................. 17
5-10. Printed Wiring Boards – POWER Section – ................. 18
5-11. Schematic Diagram – POWER Section – ..................... 19
6.
EXPLODED VIEWS
6-1. Cover Section .................................................................. 20
6-2. Front Panel Section ......................................................... 20
6-3. Chassis Section ............................................................... 21
6-2. Front Panel Section ......................................................... 20
6-3. Chassis Section ............................................................... 21
7.
ELECTRICAL PARTS LIST
............................... 22
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED
LINE WITH MARK
0
ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
3
TA-S7AV
SECTION 1
SERVICING NOTES
This set is a component of the MHC-S7AV.
The MHC-S7AV system configuration is as shown below, and
therefore it does not operate normally unless all four components
are connected.
In performing the repair, connect all components with the system
cables.
Note: 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.
The MHC-S7AV system configuration is as shown below, and
therefore it does not operate normally unless all four components
are connected.
In performing the repair, connect all components with the system
cables.
Note: 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.
System Configuration:
POWER SUPPLY
AC IN
TA
SYSTEM & CD
µ
con
ST
CDP
TC
µ
con
TC
DISPLAY
MODEL IDENTIFICATION
– Back Panel –
PART No.
Model
PART No.
AEP model
4-232-337-0
[]
UK model
4-232-337-3
[]
Australian model
4-232-337-5
[]
Mexican model
4-232-337-7
[]
Korean model
4-232-337-8
[]
FRONT AMP BOARD SERVICE POSITION
In checking the FRONT AMP board, prepare jig
(extension cable J-2501-019-A: 1.25 mm Pitch, 25 core, Length
300 mm) (Australian, Mexican and Korean models)
(extension cable J-2501-087-A: 1.25 mm Pitch, 23 core, Length
300 mm) (AEP, UK models)
(Fig A)
(extension cable J-2501-019-A: 1.25 mm Pitch, 25 core, Length
300 mm) (Australian, Mexican and Korean models)
(extension cable J-2501-087-A: 1.25 mm Pitch, 23 core, Length
300 mm) (AEP, UK models)
(Fig A)
Turn over the FRONT AMP board with Heat Sink,
SURROUND AMP board and RELAY board connected.
SURROUND AMP board and RELAY board connected.
Remove the back panel
(AV) section.
(AV) section.
Remove the fan motor
connector lead wire.
connector lead wire.
FRONT AMP board
(CN104)
(CN104)
Connect jig (extension
cable J-2501-019-A (Australian,
Mexican and Korean models),
J-2501-087-A (AEP, UK models)
to the FRONT AMP board (CN104)
and PANEL board (CN700).
cable J-2501-019-A (Australian,
Mexican and Korean models),
J-2501-087-A (AEP, UK models)
to the FRONT AMP board (CN104)
and PANEL board (CN700).
PANEL board (CN700)
(Fig A)
4
TA-S7AV
SECTION 2
GENERAL
This section is extracted from
instruction manual.
instruction manual.
Parts Identification
The items are arranged in alphabetical order.
Refer to the pages indicated in parentheses ( ) for details.
A
P
o
O
p
B
C
4
3
5
6
2
7
8
9
q;
qa
qs
qd
qf
qg
1
CINEMA STUDIO A–C 3 (24)
DIGITAL 7 (31, 35)
ENTER/O/o/P/p 2 (10, 12,
DIGITAL 7 (31, 35)
ENTER/O/o/P/p 2 (10, 12,
13, 15, 21, 22, 26–30)
EQ qa (27)
EQ ON/OFF qs (10, 27)
FILE SELECT q; (23, 28)
FUNCTION 6 (10, 14, 15, 20,
EQ ON/OFF qs (10, 27)
FILE SELECT q; (23, 28)
FUNCTION 6 (10, 14, 15, 20,
21, 31)
MIC jack (Except for European
model) 9 (31)
MIC LEVEL (Except for
European model) 8 (31)
MULTI CHANNEL DECODING
indicator 4 (25)
PHONES jack qg
SET UP qd (10, 12, 26, 28, 29)
SUR qf (25)
VOLUME 5
@/1 (power) 1 (9, 10, 17, 35)
SET UP qd (10, 12, 26, 28, 29)
SUR qf (25)
VOLUME 5
@/1 (power) 1 (9, 10, 17, 35)
Main unit
x
hH
H
hH
O
o
P
p
M
m
X
>
.
1 2 3
wg
qh
qa
wk
wj
wh
wa
4
5
6
7
qs
qf
qd
qg
8
9
q;
qk
ql
w;
qj
wd
ws
wf
es
ea
e;
wl
Remote Control
CD H es (14, 15)
CHECK 5 (15)
CLEAR 6 (15)
CLOCK/TIMER SELECT qj
CHECK 5 (15)
CLEAR 6 (15)
CLOCK/TIMER SELECT qj
(30)
CLOCK/TIMER SET qk (13, 21,
29)
DBFB qg (23)
DISPLAY ws (13, 16, 18, 29, 35)
D.SKIP 4 (14)
ENTER wg (10, 12, 13, 15, 17,
DISPLAY ws (13, 16, 18, 29, 35)
D.SKIP 4 (14)
ENTER wg (10, 12, 13, 15, 17,
18, 21, 22, 26–30)
EQ qd (27)
EQ ON/OFF qf (10, 28)
FUNCTION wf (10, 14, 15, 20,
EQ ON/OFF qf (10, 28)
FUNCTION wf (10, 14, 15, 20,
21, 31)
GROOVE wa (23)
SET UP qs (10, 12, 26, 28, 29)
SLEEP 7 (29)
SUR wd (25)
TAPE A hH ea (19, 35)
TAPE B hH e; (19, 20, 35)
TUNER/BAND wl (17)
TUNING + 9 (17)
TUNING – wh (17)
TV CH +/– ql
TV VOL +/– w;
TV @/1 2
TV/VIDEO 1
VOL +/– qh
SET UP qs (10, 12, 26, 28, 29)
SLEEP 7 (29)
SUR wd (25)
TAPE A hH ea (19, 35)
TAPE B hH e; (19, 20, 35)
TUNER/BAND wl (17)
TUNING + 9 (17)
TUNING – wh (17)
TV CH +/– ql
TV VOL +/– w;
TV @/1 2
TV/VIDEO 1
VOL +/– qh
BUTTON DESCRIPTIONS
@/1 (power) 3
X (pause) q;
x (stop) 8
. (go back) wk
> (go forward) wj
m (rewind) wh
M (fast forward) 9
O
X (pause) q;
x (stop) 8
. (go back) wk
> (go forward) wj
m (rewind) wh
M (fast forward) 9
O
/o/P/p qa
5
TA-S7AV
• This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
3-2. COVER
(Page 6)
3-3. FRONT PANEL SECTION
(Page 6)
3-4. BACK PANEL (AV) 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.