2
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.
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.
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.
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
MODEL IDENTIFICATION
— BACK PANEL —
TABLE OF CONTENTS
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. Printed Wiring Board – BD Section – ................................. 14
6-3. Schematic Diagram – BD Section – ................................... 15
6-4. Printed Wiring Board – Main Section – .............................. 16
6-5. Schematic Diagram – Main Section – ................................ 17
6-6. Printed Wiring Board – Display Section – .......................... 18
6-7. Schematic Diagram – Display Section – ............................ 19
6-8. Schematic Diagram – Power/HP Section – ........................ 20
6-9. Printed Wiring Board – Power/HP Section – ...................... 20
6-10. Schematic Diagram – Loading Motor Section – ............... 21
6-11. Printed Wiring Board – Loading Motor Section – ............ 21
6-12. IC Pin Functions ................................................................ 22
6-13. IC Block Diagrams ............................................................ 26
7. EXPLODED VIEWS
7-1. Case Section ........................................................................ 29
7-2. Front Panel Section ............................................................. 30
7-3. Mechanism Deck Section (CDM14FLS-5BD25) ............... 31
7-4. Base Unit Section (BU-5BD25) .......................................... 32
8. ELECTRICAL PARTS LIST
........................................ 33
4-997-214-6
s
4-997-214-7
s
XB740
XB740E
Parts No.
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
