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reserved. Only training and service purposes
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3. TROUBLE SHOOTING
3.11.1 Speaker
3.11 Audio Part
The Speaker control signals are generated by PM8940(U4100) chipset and the speaker are to be checked out.
START
Hear the Voice
through the SPK?
Yes
No
Yes
Check the output signal of
L4101, L4103
Check the Speaker.
And reconnect SPK module
No
Replace
Speaker Module
Replace Speaker Module
Check PM8940 (U4100)
TP1(L4101)
TP2(L4103)
TP1
TP2
Speaker
Contact
ANT6002
ANT6001
Checking Flow
Image
Circuit Diagram
40
Summary of Contents for LG-M700TV
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