Read Sony DVP-FX870 / DVP-FX875 Service Manual online
8-6E
Display condition
Inverter abnormal
Replace
VCC5V normal
PNL_DVDD normal
VGH normal
VGL normal
Y1 operate
Video_Y, Video_C
Is M1, U3 OK?
Is U2 OK?
Is U1 OK?
SDA, SCL signal
R, G, B signal output
TFT LCD normal
Check CN5
Check M1
Check BD1
Check BD2, BD3
Replace Y1
Check R15, R16, C82, R12, R13, C80
Replace M1, U3
Replace U2
Replace U1
Check R30, R31, R32, R33
Check RP1-RP6
Replace
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
Appear shadow from interference in black background
There is only bright (LCD B/D) abnormal
8-2. LCD TROUBLE SHOOTING GUIDE
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