2
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.
This appliance is classified
as a CLASS 1 LASER
product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation 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.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
1. SERVICING NOTE
............................................................ 3
2. GENERAL
............................................................................ 6
3. DISASSEMBLY
3-1.
Front Panel ......................................................................... 7
3-2.
Base Unit (BU-5BD25) ...................................................... 7
4. TEST MODE
........................................................................ 8
5. ELECTRICAL BLOCK CHECKING
......................... 10
6. DIAGRAMS
6-1.
Circuit Boards Location ................................................... 12
6-2.
Schematic Diagram Loading Motor Section ................. 13
6-3.
Printed Wiring Board Loading Motor Section .............. 13
6-4.
Printed Wiring Board BD Section ................................. 14
6-5.
Schematic Diagram BD Section .................................... 15
6-6.
Printed Wiring Board Main Section .............................. 16
6-7.
Schematic Diagram Main Section ................................. 17
6-8.
Printed Wiring Board Display Section .......................... 18
6-9.
Schematic Diagram Display Section ............................. 19
6-10. Printed Wiring Board Power Section ............................ 20
6-11. Schematic Diagram Power Section ............................... 20
6-12 IC Pin Functions ............................................................... 21
6-13. IC Block Diagrams ........................................................... 25
7. EXPLODED VIEWS
7-1.
Front Panel and Case Section ........................................... 28
7-2.
CD Mechanism Section (CDM14FL-5BD25) ................. 30
7-3.
Base Unit Section (BU-5BD25) ....................................... 31
8. ELECTRICAL PARTS LIST
········································· 32
TABLE OF CONTENTS
