DVP-FX740DT - Sony DVD Service Manual (repair manual). Page 3

1. DISASSEMBLY

1-1. Disassembly 

Flow 

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

1-1

1-2.  Top Cover Block ...........................................................  1-1 
1-3.  LCD Panel Block ..........................................................  1-2
1-4. LCD 

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

1-2

1-5. Travers 

Unit 

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

1-3

1-6. MAIN 

Board 

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

1-4

1-7. ANT 

Board 

....................................................................  1-4

1-8.  Circuit Boards Location ................................................  1-5

2. 

BLOCK  DIAGRAM

2-1.  OVERALL BLOCK DIAGRAM ......................................  2-1

3. 

SCHEMATIC  DIAGRAMS

3-1.  FRAME SCHEMATIC DIAGRAM (1/3) .........................  3-1
3-2.  FRAME SCHEMATIC DIAGRAM (2/3) .........................  3-2
3-3.  FRAME SCHEMATIC DIAGRAM (3/3) .........................  3-3
3-4.  MAIN BOARD (1/7) (DC-DC POWER) .........................  3-4
3-5.  MAIN BOARD (2/7) (MCU & KEY) ...............................  3-5
3-6.  MAIN BOARD (3/7) 
 

(DVD SERVO & DSP MT1389LP) ...............................  3-6

3-7.  MAIN BOARD (4/7) (SDRAM & FLASH ROM) ............  3-7
3-8.  MAIN BOARD (5/7) (VIDEO OUT) ...............................  3-8
3-9.  MAIN BOARD (6/7) (AUDIO OUT) ...............................  3-9
3-10.  MAIN BOARD (7/7) (TUNER & ANT CONNECTOR) ...  3-10
3-11.  LCD BOARD (T_CON) .................................................  3-11
3-12.  KEY BOARD (TOUCH BOARD) ..................................  3-12
3-13.  ANT BOARD (ANTENNA) ............................................  3-13

4. 

PRINTED  WIRING  BOARDS

4-1.  MAIN Board (SIDE A) ...................................................  4-1
4-2.  MAIN Board (SIDE B)...................................................  4-2
4-3. LCD 

Board....................................................................  

4-3

4-4. KEY 

Board 

....................................................................  4-4

4-5. ANT 

Board 

....................................................................  4-5

5. 

WAVEFORMS  AND  CIRCUIT  VOLTAGE  CHECK

5-1. Waveforms 

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

5-1

5-2.  Circuit Voltage Chart ....................................................  5-3

6. 

IC  PIN  FUNCTION  DESCRIPTION

6-1.  MPEG/DSP/RF PIN Functiom

(MAIN Board U7: MT1389LP) ......................................  6-1

7. ELECTRICAL 

 

ADJUSTMENT

7-1.  VCOM DC Level Adjustment ........................................  7-1

8. TROUBLESHOOTING

8-1.  Electrical Trouble  Shooting Guide ...............................  8-1
8-2.  LCD Trouble Shooting Guide .......................................  8-6

9. 

REPAIR  PARTS  LIST

9-1. EXPLODED 

VIEWS 

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

9-1

  9-1-1.  Top Cover Block ......................................................  9-1
  9-1-2.  Bottom Block ...........................................................  9-2
  9-1-3.  LCD Panel Block .....................................................  9-3
9-2.  Electrical Parts List .......................................................  9-4