LG 20HIZ20, Руководство по обслуживанию

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No Raster on AV Signal
(CVBS/S-VHS/SCART/TUNER)
Check L822, R124, R831
of video signal.
If CVBS of RCA(AV2).
Repeat [A] Process .
If YC
Yes
Fail
Yes
Check L822, R124, R831
of video signal.
Repeat [A] Process.
Pass
No
Pass
If RGB of SCART
Yes
Check R280, R281, R282, R110,
R112, R114 of video singal
No
Yes
If If CVBS of SCART
Yes
Check L205, R210, R121 of
video signal.
Check Signal Input jack
Check IC911/906
and Lips
Change Tuner.
No
If Tuner
Yes
Yes
5V_Tuner is On
Video valid on tuner Pin-13
Yes