Read LG 47SL85-UA (CHASSIS:LA92M) Service Manual online
LA92B-SL80/SL85 Trouble shooting guide – HDMI
Audio(In)
Check input connect JK200,JK201,JK202,JK203
Can you see the normal waveform?
Can you see the normal waveform?
JK200,JK201,JK202,JK203 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,
you should decide to replace this or not.
you should decide to replace this or not.
Check DDC communication lines
(IC200)
(IC200)
Check the output of TDA9996HL(IC200)
_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 LGE3369(IC601).
Can you see the normal waveform?
MS_SCK,MS_LRCH) of LGE3369(IC601).
Can you see the normal waveform?
Check IC301(NTP-3100L) L304/L305
YES
NO
After checking the Power & Select Pin & Etc of this chip,
you should decide to replace this or not.
you should decide to replace this or not.
NO
After checking the Power & Select Pin & Etc of this chip,
you should decide to replace this or not.
you should decide to replace this or not.
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