Lcd Trouble Shooting Guide (1/2) - Sony DVP-FX705 Service Manual

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9-2. LCD TROUBLE SHOOTING GUIDE (1/2)

DISPLAY CONDITION?
There is only bright light.(LCD B/D abnormal)
YES
Q8F1 Normal operate?
YES
+8.8V, +16V, -10V Normal?
YES
+5V Normal?
TE
L 13942296513 YES
+3.3V, +2.5V Normal?
YES
X801 operate?
YES
R.G.B signal output?
YES
VCOM signal?(4.6Vpp)
YES
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appear shadow form interference
in black background
NO
+8.25V, +17V, -15V Check and Replace
NO
T801, D8F1, D8F2, D8F3 Check
NO
IC901 Check and Replace(Key B/D Located)
NO
IC801, IC804 Check
NO
X801 Replace
NO
IC801 Check and Replace
NO
IC802, IC803 Check and Replace
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2 9
8
Q Q
3 6 7 1 3
.
9-10
9 4 2 8
INVERTOR ABNORMAL
Main B/D on located
1 5 0 5 8 2 9 9 4
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9 9
2 8 9 9