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7. Unusual display from RGB mode
Is video input
of the RGB Jack normal?
(Check JK703_Pin1,
2,3,13,14)
Yes
Is waveform
of Switching IC normal?
(Check IC700_Pin11,
12,13)
No
Same as Block A.
8. Unusual display from HDMI 1/2 mode
Is video
input of the HDMI
jack normal? (Check
JK900,901)
Yes
Check DDC
communication
lines(IC900,901_
Pin5,6
Yes
Check HDCP
communication lines
(IC902)
Yes
Is waveform
of Switching IC normal?
(Check IC902)
No
Same as Block A.
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Only for training and service purposes
No
Check the input source.
No
Check the IC700.
No
Check the input source.
No
Check the IC900, IC901.
No
Check the IC902.
No
Check the IC902.
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LGE Internal Use Only
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