XM-7547 — Sony Car Audio Service Manual (repair manual)

Model
XM-7547
Pages
28
Size
1.85 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
xm-7547.pdf
Date

View Sony XM-7547 Service Manual online

1
MICROFILM
XM-7547
US Model
Canadian Model
AEP Model
UK Model
E Model
SPECIFICATIONS
SERVICE MANUAL
STEREO POWER AMPLIFER
2
TABLE OF CONTENTS
1. SERVICE MODE
............................................................. 3
2. GENERAL
.......................................................................... 4
3. DISASSEMBLY
3-1. Side Plate and Filer Board .................................................... 7
3-2. Amplifier/Power Board and LED Board .............................. 7
4. ELECTRICAL ADJUSTMENT
.................................... 7
5. DIAGRAMS
5-1. Block Diagram – Amplifier Sction – .................................... 8
5-2. Block Diagram – Power Section – ........................................ 9
5-3. IC Block Diagram ............................................................... 10
5-4. Printed Wiring Board – LED/Filter Section – ..................... 10
5-5. Schematic Diagram – Filter/Amplifier (1/3) Section – ....... 11
5-6. Printed Wiring Board – Amplifier Section – ....................... 12
5-7. Schematic Diagram – Amplifier (2/3) Section – ................. 13
5-8. Schematic Diagram
– Power/Amplifier (3/3)/LED Section – ............................. 14
5-9. Printed Wiring Board – Power Section – ............................ 15
6. EXPLODED VIEWS
6-1. Plate and Cover Section ...................................................... 17
6-2. Board and Heat Sink ........................................................... 18
7. ELECTRICAL PARTS LIST
........................................ 19
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
 damaged by heat.
3
SECTION 1
SERVICE NOTE
Clearing the Protector During Repairs
• OVER CURRENT  : Detects overcurrent during output.
• OFF SET  : Detects DC offset at the speaker terminal.
1. Clearing the  OVER CURRENT  protector
1 When the position of the  MODE  switch (S801/power board)
is set to  HI-VOLTAGE  :
Cut the jumper wire JW535 of the amplifier board.
2 When the position of the  MODE  switch (S801/power board)
is set to  HI-CURRENT  :
Cut the jumper wire JW690 of the amplifier board.
2. Clearing the  OFF SET  protector
• Cut the jumper wire JW502 of the amplifier board.
3.   TEST TONE  Function
1 Press the  TEST TONE  button (S851/amplifier board) with the
power ON. The amplifier is normal if sound is produced from
the speaker.
2 If no sound
  : Problem causer by incorrect connecttion of the power supply
system or sperker system.
  : The signals input by the RCA cable before the amplifier system
are abnormal.
Adjustment Location:
S851
TEST
TONE
JW535
JW690
JW502
- POWER BOARD - (Component side)
- AMPLIFIER BOARD - (Component side)
S801
MODE
4
SECTION 2
GENERAL
This section is extracted from
instruction manual.
Page of 28
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Download Sony XM-7547 Service Manual (Repair Manual)

Here you can view online or download Sony XM-7547 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony XM-7547 Car Audio. Information contained in Sony XM-7547 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).