Mitsubishi Electric LT-3280 Service Manual page 39

2-2. No picture displayed and picture errors of PC signal only. . . . . 2-2. No picture displayed and picture errors of PC signal only 2-2. No picture displayed and picture errors of PC signal only 2-2. No picture displayed and picture errors of PC signal only 2-2. No picture displayed and picture errors of PC signal only
Enter an input of WXGA(1360x768:60Hz) or XGA
(1024x768:60Hz) gray scale in D-sub connector(J200),
and select PC INPUT.
The video level inputs above 0.7Vp-p.
Is all harness connected correctly?
YES
Problem is in IC203 or IC2A0 or IC2A1 or
IC200 or their peripheral circuits.
Please exchange PWB-MAIN
2-3. No picture displayed and picture errors of HDMI signal only 2-3. No picture displayed and picture errors of HDMI signal only. . . . . 2-3. No picture displayed and picture errors of HDMI signal only
2-3. No picture displayed and picture errors of HDMI signal only 2-3. No picture displayed and picture errors of HDMI signal only
Enter gray scale pattern of 1080i timing
in J500 connector, and select HDMI INPUT.
And then, perform AV reset by front switch.
The video level inputs above 0.7Vp-p.
Is all harness connected correctly?
YES
Problem is in IC500 or IC501 or their
Peripheral circuits.
Please exchange PWB-MAIN
MODELS: LT-3280D/LT-3780D
NO
Poor harness connection or
defective cable.
NO
Poor harness connection or
defective cable.
Page 39
0.7Vp-p