Read Sony CDX-L440B Service Manual online
3
CDX-L440B
EXTENSION CABLE AND SERVICE POSITION
When repairing or servicing this set, connect the jig (extension cable)
as shown below.
as shown below.
• Connect the MAIN board (CNP701) and the SERVO board (CN1)
with the extension cable (Part No. J-2502-062-1).
MAIN BOARD CNP701
SERVO BOARD CN1
J-2502-062-1
TABLE OF CONTENTS
1. GENERAL
Location of controls ................................................................. 4
Connections ............................................................................. 5
Connections ............................................................................. 5
2. DISASSEMBLY
2-1. Front Panel Assy ................................................................. 7
2-2. CD Mechanism Block ......................................................... 8
2-3. Main Board ......................................................................... 8
2-4. Heat Sink ............................................................................. 9
2-5. Chassis (T) Sub Assy .......................................................... 9
2-6. Lever Section ..................................................................... 10
2-7. Servo Board ....................................................................... 10
2-8. Shaft Roller Assy .............................................................. 11
2-9. Floating Block Assy .......................................................... 11
2-10. Optical Pick-up Block ....................................................... 12
2-2. CD Mechanism Block ......................................................... 8
2-3. Main Board ......................................................................... 8
2-4. Heat Sink ............................................................................. 9
2-5. Chassis (T) Sub Assy .......................................................... 9
2-6. Lever Section ..................................................................... 10
2-7. Servo Board ....................................................................... 10
2-8. Shaft Roller Assy .............................................................. 11
2-9. Floating Block Assy .......................................................... 11
2-10. Optical Pick-up Block ....................................................... 12
3. DIAGRAMS
3-1. IC Pin Description ............................................................. 13
3-2. Block Diagram –CD Section– ........................................... 15
3-3. Block Diagram –Main Section– ........................................ 16
3-4. Block Diagram –Display Section– .................................... 17
3-5. Circuit Boards Location .................................................... 17
3-6. Printed Wiring Board –CD Mechanism Section– ............. 18
3-7. Schematic Diagram –CD Mechanism Section– ................ 20
3-8. Printed Wiring Boards –Main Section– ............................ 21
3-9. Schematic Diagram –Main Section (1/2)– ........................ 22
3-10. Schematic Diagram –Main Section (2/2)– ........................ 23
3-11. Printed Wiring Board –Display Section– .......................... 24
3-12. Schematic Diagram –Display Section– ............................. 25
3-2. Block Diagram –CD Section– ........................................... 15
3-3. Block Diagram –Main Section– ........................................ 16
3-4. Block Diagram –Display Section– .................................... 17
3-5. Circuit Boards Location .................................................... 17
3-6. Printed Wiring Board –CD Mechanism Section– ............. 18
3-7. Schematic Diagram –CD Mechanism Section– ................ 20
3-8. Printed Wiring Boards –Main Section– ............................ 21
3-9. Schematic Diagram –Main Section (1/2)– ........................ 22
3-10. Schematic Diagram –Main Section (2/2)– ........................ 23
3-11. Printed Wiring Board –Display Section– .......................... 24
3-12. Schematic Diagram –Display Section– ............................. 25
4. EXPLODED VIEWS
4-1. Chassis Section ................................................................. 28
4-2. Front Panel Section ........................................................... 29
4-3. CD Mechanism Section (1) ............................................... 30
4-4. CD Mechanism Section (2) ............................................... 31
4-5. CD Mechanism Section (3) ............................................... 32
4-2. Front Panel Section ........................................................... 29
4-3. CD Mechanism Section (1) ............................................... 30
4-4. CD Mechanism Section (2) ............................................... 31
4-5. CD Mechanism Section (3) ............................................... 32
5. ELECTRICAL PARTS LIST
......................................... 33
Click on the first or last page to see other CDX-L440B service manuals if exist.