Read Sony DVP-FX1021 Service Manual online
9-10
9-2. LCD TROUBLE SHOOTING GUIDE (1/2)
DESPLAY CONDITION?
appear shadow form interference
in black background
in black background
There is only bright light
abnormal)
FUSE Replace
IC8F1, IC8F2 Check and
T801, D8F1, D8F2, D8F3
Main PWB on located
IC901 Check and Replace (Key PWB M't)
IC801, IC804
A/V IN S/W (J403) Check (Main PWB M't)
X801, C832 Replace (TFT-LCD PWB M't)
IC805 Check and Replace (TFT-LCD PWB M't)
IC802, IC803 Check and Replace (TFT-LCD PWB M't)
IC500 Check and Replace (Main PWB M't)
Q8F1 Normal operate?
LCD Display signal?
X801 operate?
VCOM (TP878) signal?(3.3Vpp)
H/V SYNC (CON804 4p~5p)?
YES
YES
NO
NO
NO
NO
NO
Black
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
INVERTOR (A44B) ABNORMAL
.(LCD PWB
Main PWB
Main PWB
TFT-LCD PWB
TFT-LCD PWB
TFT-LCD PWB
TPA816 (+3.3V), TPA817 (+2.5V)
Normal?
TPA816 (+3.3V), TPA817 (+2.5V)
Normal?
FUSE(F801)Normal?
TP805 (+5V) Normal?
Replace (Main PWB M't)
Check (Main PWB M't)
Check (TFT-LCD PWB M't)
R (CON806 24p~29p), G (CON807 2p~7p),
B (CON807 15p~20p) signal output?
B (CON807 15p~20p) signal output?
TFT-LCD PWB
TP829 (+8.8V), TP813 (+16V),
TP817 (–10V) Normal?
TP829 (+8.8V), TP813 (+16V),
TP817 (–10V) Normal?
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