Lcd Trouble Shooting Guide (1/2) - Sony DVP-FX700 Service Manual

9-2. LCD TROUBLE SHOOTING GUIDE(1/2)
DISPLAY CONDITION?
There is only bright light.(LCD B/D abnormal)
FUSE(F801)Normal?
YES
Q8F1 Normal operate?
YES
7.5V, 17V, -15V Normal?
YES
+5V, +3.3V Normal?
YES
Y/C Display signal?
YES
X801 operate?
YES
R.G.B signal output?
YES
VCOM signal?(6.5Vpp)
YES
VCO Normal operate?
YES
H/V SYNC?
YES
appear shadow form interference
in black background
NO
FUSE Replace
NO
IC8F1, IC8F2 Check and Replace
NO
T801, D8F1, D8F2, D8F3 Check
NO
IC8F3, IC8F4 Check and Replace
NO
A/V IN S/W Check
NO
X801, C832 Replace
NO
IC801, IC803, Q806 Check and Replace
NO
IC808, Q811, Q812, QQ813 Check and Replace
NO
D801, L809, IC806 VCO Check and Replace
NO
Q810, IC807 Check and Replace
9-9
INVERTOR ABNORMAL