Read LG 47SL90QD-AA (CHASSIS:LB91L) Service Manual online
Making
Revision
2009. 2 . 1
11/25
LCD TV
Symptom
HDMI 1~4 All No Video Problem
Revision
Check Signal format
Is it supported?
YES
Check the HDMI Cable
YES
Check the ADJUST MENU
Download EDID
(R f t Adj t
t S
)
EDID OK ?
YES
(Refer to Adjustment Spec)
NO
Replace
Replace MAIN B’D IC 100
NO
MAIN B’D IC601 (HDCP KEY)
Replace MAIN B D IC 100
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