Read LG 55LH55 (CHASSIS:LA92B) Service Manual online
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3. HDMI
Check input connect JK500,JK501,JK502,JK503
Can you see the normal waveform?
Can you see the normal waveform?
JK500,JK501,JK502,JK503
may have problem. Replace this Jack.
After checking the Power of this chip
you should decide to replace this or not.
After checking the Power of this chip
you should decide to replace this or not.
YES
YES
YES
NO
NO
NO
NO
After checking the Power & Select Pin & Etc of this chip
y ou should decide to replace this or not.
y ou should decide to replace this or not.
Check DDC communication lines (IC502)
Check the output of TDA9996HL(IC502)
_HDMI1,2,3
_HDMI1,2,3
or HDMI4.
.
Can you see the normal waveform?
Check HDCP communication lines(IC105)
YES
Check the Output
(Pin Audio_MASTER_CLK ,MS_LRCK
MS_SCK,MS_LRCH) of LGE3159(IC100).
Can you see the normal waveform?
Can you see the normal waveform?
Check IC600(NTP-3100L) L606/L607
YES
NO
NO
After checking the Power & Select Pin & Etc of this chip
y ou should decide to replace this or not.
y ou should decide to replace this or not.
After checking the Power & Select Pin & Etc of this chip
y ou should decide to replace this or not.
y ou should decide to replace this or not.
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