Sony MCE-F88K, Руководство по обслуживанию

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2
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
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.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
PARTS No. MODEL
4-900-307-0
s
Malaysia, Singapore, Hong Kong model
4-900-307-1 s Thai model
4-900-307-3 s Soudi Arabia model
MODEL IDENTIFICATION
— BACK PANEL —
TABLE OF CONTENTS
1. SERVICING NOTE
.......................................................... 3
2. GENERAL
.......................................................................... 4
3. DISASSEMBLY
3-1. Front Panel ......................................................................... 12
3-2. Base Unit (BU-5BD24) ....................................................... 12
4. TEST MODE
..................................................................... 13
5. ELECTRICAL BLOCK CHECKING
........................ 15
6. DIAGRAMS
6-1. Circuit Boards Location ...................................................... 17
6-2. Block Diagrams
• CD Section ........................................................................ 18
• Main Section ..................................................................... 19
• Video Section .................................................................... 20
6-3. Schematic Diagram – CD Section – ................................... 22
6-4. Printed Wiring Board – CD Section – ................................. 23
6-5. Schematic Diagram – Main Section – ................................ 24
6-6. Printed Wiring Board – Main Section – .............................. 25
6-7. Printed Wiring Board – Video Section – ............................. 26
6-8. Schematic Diagram – Video (1/3) Section – ....................... 27
6-9. Schematic Diagram – Video (2/3) Section – ....................... 28
6-10. Schematic Diagram – Video (3/3) Section – ..................... 29
6-11. Schematic Diagram – Display Section – ........................... 30
6-12. Printed Wiring Board – Display Section – ........................ 31
6-13. Schematic Diagram – Mic Section – ................................. 32
6-14. Printed Wiring Board – Mic Section – .............................. 33
6-15. Schematic Diagram – Trans Section – .............................. 34
6-16. Printed Wiring Board – Trans Section – ........................... 35
6-17. IC Block Diagrams ............................................................ 36
6-18. IC Pin Functions ................................................................ 38
7. EXPLODED VIEWS
7-1. Case Section ........................................................................ 43
7-2. Front Panel Section ............................................................. 44
7-3. Mechanism Deck Section (CDM14-5BD24) ...................... 45
7-4. Base Unit Section (BU-5BD24) .......................................... 46
8. ELECTRICAL PARTS LIST
........................................ 47
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 PUBLISHED BY SONY.
Parts No.