BDP-BX38, BDP-S280, BDP-S380, BDP-S383 - Sony DVD Service Manual (repair manual). Page 3

1. 

SERVICE  NOTE

1-1.  Disc Removal Procedure If The Tray Cannot Be 
 

Ejected (Forced Ejection) .............................................  1-1

1-2.  Work when optical device are replaced ........................  1-1
1-3. Test 

Disc 

.......................................................................  

1-2

  1-3-1.  Operation and Display .............................................  1-2

1-4. Drive 

Repairing.............................................................  

1-15

  1-4-1.  Preparation ..............................................................  1-15
  1-4-2.  Checking Flow ~ Drive (BU) section ~ ....................  1-15
  1-4-3.  BU Check Flow [zz] ~ ..............................................  1-16
  1-4-4.  BU (Optical Block) Repair Guide .............................  1-16
  1-4-5.  BU Adjustment Flow [yy] ~ ......................................  1-17
  1-4-6.  KEM-470AAA/C2RP Packing Spec. .......................  1-17
  1-4-7.  KEM-470AAA/C2RP Packing ..................................  1-18

  1-4-8.  BU Data Decode Jig ................................................  1-19
  1-4-9.  Loading For Service

      .........................................  1-20

  1-4-10.  Laser Caution Label ................................................  1-20

2. DISASSEMBLY

2-1. Disassembly 

Flow 

........................................................  

2-1

2-2. Upper 

Case 

..................................................................  

2-1

2-3. Tray 

Cover 

Assy 

 

..........................................................  

2-2

2-4.  Front Panel Assy, FL-203 and IF-170 Board

 ....                                                    ...............  2-2

2-5.  Rear Panel Block .........................................................  2-3
2-6.  MB-138 Board  .............................................................  2-3
2-7. BD 

Drive

 

.......................................................................  2-4

2-8.    Switching Regulator .....................................................  2-5E

3. 

BLOCK  DIAGRAMS

3-1.  Overall Block Diagram..................................................  3-1
3-2.  DSP Block Diagram ......................................................  3-2
3-3.  AV OUT Block Diagram ................................................  3-3
3-4.  USB/ETHER,  Block Diagram      ..................................  3-4
3-5.  Power Block Diagram         ..........................................  3-5E

4. 

SCHEMATIC  DIAGRAMS

4-1.  This Note Is Common For Schematic Diagrams ..........  4-1
4-2.  Frame Schematic Diagram...........................................  4-2
4-3.  IF-170 Board (FRONT LEFT) Schematic Diagram  ... 4-3
4-4.  IF-170 Board (USB FRONT) Schematic Diagram  ...... 4-4

4-6.  MB-138 Board (DDR 3 A) 
 

Schematic Diagram (1/14)............................................  4-6

4-7.  MB-138 Board (DDR 3 B) 
 

Schematic Diagram (2/14)............................................  4-7

4-14.  MB-138 Board (AUDIO) 
 

Schematic Diagram (9/14)............................................  4-14

4-15.  MB-138 Board (VIDEO) 
 

Schematic Diagram (10/14)..........................................  4-15

4-16.  MB-138 Board (GPIO/JTAG) 
 

Schematic Diagram (11/14) ..........................................  4-16

4-17.  MB-138 Board (IF CON) 
 

Schematic Diagram (12/14)..........................................  4-17

4-18.  MB-138 Board (FE_POWER/OP/GIO) 
 

Schematic Diagram (13/14)..........................................  4-18

4-19.  MB-138 Board (FE_POWER/MOTOR DRIVE)  

4-20. Waveforms ...................................................................  4-20E

5. 

PRINTED  WIRING  BOARDS

5-1.  This Note Is Common For Printed Wiring Boards ........  5-1
5-2.  FL-203 Board (FRONT LEFT) Printed Wiring Board.....   5-2
5-3.  IF-170 Board  
 

Printed Wiring Board ......................................................  5-3

5-4. MB-138 

Board(MAIN)

 

Printed Wiring Board (Side A)   ...................................

..  5-4

5-5.  MB-138 Board (MAIN) 
 

Printed Wiring Board (Side B) ......................................  5-5E

6. 

IC  PIN  FUNCTION  DESCRIPTION

 ...................   6-1

7. 

SERVICE  MODE

 .....................................................   7-1

8. 

ERROR  LOG  LIST

 .................................................   8-1

9. TROUBLESHOOTING

 .............................................  9-1

10.  REPAIR  PARTS  LIST

10-1. Exploded Views ............................................................  10-1
  10-1-1.  Case Section ...........................................................  10-1
  10-1-2. 

 

...........................................  10-2

  10-1-3. 

Main Chassis Section

 

.............................................................  10-3

  10-1-4. 

BD Section

 ..........................................................  

10-4

  Accessories 

 

10-2.  Electrical Parts List .......................................................  10-5

Schematic Diagram (14/14) ........................................  4-19

4-11.  MB-138 Board (USB) Schematic Diagram (6/14).........  4-11

4-12.  MB-138 Board (HDMI) 
 

Schematic Diagram (7/14)............................................  4-12

4-13.  MB-138 Board (ETHERNET) 
 

Schematic Diagram (8/14)............................................  4-13

2-9.    Circuit Boards Location ................................................  2-5E

1-5.

 

Rear Panel Assembly Caution.................................

..  1-23E

  1-3-2.  Main functions

 

.........................................................  1-9

4-9.  MB-138 Board (CLK/POWER) 
 

Schematic Diagram (4/14)............................................  4-9

4-10.  MB-138 Board (FLASH/HOST) 
 

Schematic Diagram (5/14)............................................  4-10

4-8.  MB-138 Board (POWER) 
 

Schematic Diagram (3/14)............................................  4-8

4-5.  FL-203 Board (FRONT RIGHT)  Schematic Diagram ... 4-5