Sony MCE-K700, Service Manual

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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.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
This caution label is located inside
the unit.
The laser component in this product is ca-
pable of emitting radiation exceeding the
limit for Class 1.
SAFETY-RELATED COMPONENT WARNING !!
COMPONENTS IDENTIFIED BY MARK
!
OR DOTTED LINE
WITH MARK ! 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.
CAUTION
Use of controls or adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
TABLE OF CONTENTS
1. SERVICING NOTE .......................................................
3
2. TEST MODE .................................................................
4
3. GENERAL
.................................................................
6
4. DISASSEMBLY
4-1. Front Panel ......................................................................... 17
4-2. Base Unit (BU-5BD21) ...................................................... 17
5. ELECTRICAL ADJUSTMENTS ..............................
18
6. DIAGRAMS
6-1. Circuit Boards Location ..................................................... 20
6-2. Block Diagrams
• CD, Main Section ............................................................ 21
• Video Section .................................................................. 25
6-3. Printed Wiring Board — BD Section — ............................ 29
6-4. Schematic Diagram — BD Section — ............................... 31
6-5. Printed Wiring Board — Main, Displ Section — .............. 34
6-6. Schematic Diagram — Main, Disp Section — .................. 37
6-7. Schematic Diagram — Video Section — ........................... 43
6-8. Printed Wiring Board — Video Section — ........................ 47
6-9. IC Block Diagrams
• BD Section ...................................................................... 50
• Main, Disp Section .......................................................... 51
• Video Section .................................................................. 52
6-10. IC Pin Functions
• IC101 Digital Signal Processor (CXD2545Q)/
BD board ......................................................................... 55
• IC104 Digital Signal Processor for Karaoke
(CXD2721Q)/Main board ............................................... 58
• IC402 System Control, FL Driver (CXP82532-010Q)/
Disp board ....................................................................... 60
• IC501 Mechanism Control (HD6433032SK07F)/
Video board ..................................................................... 61
• IC507 MPEG Decoder (CXD1852Q)/Video board ........ 63
• IC509 Video Picture Quality Improvement (CXD1853Q)/
Video board ..................................................................... 67
• IC511 Digital Video Encoder (CXD1913Q)/
Video board ..................................................................... 70
• IC801 Character Generator (LC74760)/Video board ...... 73
7. EXPLODED VIEWS
7-1. Case Section ....................................................................... 74
7-2. Chassis Section ................................................................... 75
7-3. Mechanism Deck Section (CDM14-5BD21) ..................... 76
7-5. Base Unit Section (BU-5BD21) ......................................... 77
8. ELECTRICAL PARTS LIST .....................................
78