Only For Training And Service Purposes - LG GM200 Service Manual

4. TROUBLE SHOOTING
CHECKING FLOW
Reassemble speaker module,
Can you hear the sound form RCV?
Can you hear
the sound from
the earphone?
YES
Check the L203,L204,CN201
YES
Problem is solved?
YES
Receiver
Working well!!
LGE Internal Use Only
LGE Internal Use Only
START
YES
NO
NO
NO
NO
Receiver
Working well!!
Change the U103
Change L203.L204,CN201
Change speaker module
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Only for training and service purposes