TA-S7AV — Sony Audio Service Manual (repair manual)

Model
TA-S7AV
Pages
27
Size
2.38 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ta-s7av.pdf
Date

View Sony TA-S7AV Service Manual online

SERVICE MANUAL
AV AMPLIFIER
AEP Model
UK Model
E Model
Australian Model
SPECIFICATIONS
TA-S7AV
Ver 1.0  2001.04
9-873-836-11
Sony Corporation
2001D0500-1
Home Audio Company
C
 2001.4
Shinagawa Tec Service Manual Production Group
TA-S7AV is the Amplifier section
in MHC-S7AV.
Amplifier section
European model:
Front Speaker:
DIN power output (rated) 95 + 95 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
120 + 120 watts
(6 ohms at 1 kHz, 10%
THD)
Music power output (reference)
200 + 200 watts
(6 ohms at 1 kHz, 10%
THD)
Center Speaker:
DIN power output (rated) 30 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
40 watts
(8 ohms at 1 kHz, 10%
THD)
Music power output (reference)
75 watts
(8 ohms at 1 kHz, 10%
THD)
Rear Speaker:
DIN power output (rated) 30 + 30 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
40 + 40 watts
(8 ohms at 1 kHz, 10%
THD)
Music power output (reference)
75 + 75 watts
(8 ohms at 1 kHz, 10%
THD)
Other models:
The following measured at AC 120, 220, 240 V,
50/60 Hz
Front Speaker:
DIN power output (rated) 95 + 95 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
120 + 120 watts
(6 ohms at 1 kHz, 10%
THD)
Center Speaker:
DIN power output (rated) 30 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
40 watts
(8 ohms at 1 kHz, 10%
THD)
Rear Speaker:
DIN power output (rated) 30 + 30 watts
(8 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
40 + 40 watts
(8 ohms at 1 kHz, 10%
THD)
Inputs
VIDEO (AUDIO) IN:
voltage 250 mV,
(phono jacks)
impedance 47 kilohms
MD IN:
voltage 450 mV,
(phono jacks)
impedance 47 kilohms
OPTICAL IN:
(Square optical connector jacks, rear panel)
wavelength
700 nm
MIC:
sensitivity 1 mV,
(Except for
impedance 10 kilohms
European model)
(phone jack)
Outputs
MD OUT:
voltage 250 mV
(phono jacks)
impedance 1 kilohms
PHONES:
accepts headphones of
(stereo mini jack)
8 ohms or more
FRONT SPEAKER:
accepts impedance of 6 to
16 ohms
REAR SPEAKER:
accepts impedance of 8 to
16 ohms
CENTER SPEAKER:
accepts impedance of 8 to
16 ohms
SUB WOOFER OUT:
Voltage 1 V,
impedance 1 kilohms
General
Power requirements
European model:
230 V AC, 50/60 Hz
Australian model:
230 – 240 V AC,
50/60 Hz
Mexican model:
120 V AC, 60 Hz
Korean model:
220 V AC, 60 Hz
Power consumption
European model:
300 watts
0.6 watts (during Power
Saving Mode)
Other models:
300 watts
Dimensions (w/h/d)
Approx. 280 x 128 x 350 mm
Mass
Approx. 7.7 kg
Design and specifications are subject to change
without notice.
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
– 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
6.
EXPLODED  VIEWS
6-1. Cover Section .................................................................. 20
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.
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.
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)
Turn over the FRONT AMP board with Heat Sink, 
SURROUND AMP board and RELAY board connected.
Remove the back panel 
(AV) section.
Remove the fan motor 
connector lead wire.
FRONT AMP board
(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).
PANEL board (CN700)
(Fig A)
4
TA-S7AV
SECTION  2
GENERAL
This section is extracted from
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,
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,
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)
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
(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,
18, 21, 22, 26–30)
EQ qd (27)
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
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
/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.

Download Sony TA-S7AV Service Manual (Repair Manual)

Here you can view online or download Sony TA-S7AV Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony TA-S7AV Audio. Information contained in Sony TA-S7AV service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).