Read Sony DVP-FX870 / DVP-FX875 Service Manual online
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TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
1.
DISASSEMBLY
1-1.
Bottom Assy .................................................................. 1-1
1-2.
MAIN Board ................................................................... 1-1
1-3.
Upper Block ................................................................... 1-2
1-4.
LCD Panel Assy ............................................................ 1-3
2.
BLOCK DIAGRAM
2-1.
Overall Block Diagram ................................................... 2-1
3.
SCHEMATIC DIAGRAMS
3-1.
Frame ............................................................................ 3-1
3-2.
DC-DC POWER ............................................................ 3-3
3-3.
MCU & KEY ................................................................... 3-5
3-4.
DVD SERVO & DSP MT1389HD .................................. 3-7
3-5.
SDRAM & FLASH ROM ................................................ 3-9
3-6.
VIDEO OUT & PANEL CONNECT ................................ 3-11
3-7.
AUDIO OUT 1 ................................................................ 3-13
3-8.
AUDIO OUT 2 ................................................................ 3-15
3-9.
T-CON ............................................................................ 3-17
3-10. KEY ADC ....................................................................... 3-19
4.
PRINTED WIRING BOARDS
4-1.
Circuit Boards Location ................................................. 4-1
4-2.
MAIN Board ................................................................... 4-3
4-3.
LCD Board ..................................................................... 4-7
5.
WAVEFORMS AND CIRCUIT VOLTAGE
5-1.
Waveforms ..................................................................... 5-1
5-2.
Circuit Voltage Chart ..................................................... 5-5
6.
IC PIN FUNCTION DESCRIPTION
6-1.
MPEG/DSP/RF Pin Function
(MAIN Board U7: MT1389HD) ...................................... 6-1
(MAIN Board U7: MT1389HD) ...................................... 6-1
6-2.
FRONT MICOM Pin Function
(MAIN Board U6: Z8F0822) .......................................... 6-7
(MAIN Board U6: Z8F0822) .......................................... 6-7
7.
ELECTRICAL ADJUSTMENT
7-1.
Standard Video Level .................................................... 7-1
7-2.
VCOM DC Level ............................................................ 7-1
8.
TROUBLESHOOTING
8-1.
Electrical Trouble Shooting Guide ................................. 8-1
1.
Power (DC-DC Converter) Circuit ................................. 8-1
2.
MPEG Circuit ................................................................. 8-3
3.
Front Circuit (Dogotrpm & Key) ..................................... 8-4
4.
RF/Servo Circuit ............................................................ 8-5
8-2.
LCD Trouble Shooting Guide ........................................ 8-6
9.
REPAIR PARTS LIST
9-1.
Exploded Views ............................................................. 9-1
9-1-1. Main Block ................................................................ 9-1
9-1-2. Upper Block .............................................................. 9-2
9-1-3. LCD Block ................................................................. 9-3
9-1-2. Upper Block .............................................................. 9-2
9-1-3. LCD Block ................................................................. 9-3
9-2.
Electrical Parts List ....................................................... 9-4
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