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4. TROUBLE SHOOTING
4.10.2 Headset path (Voice & Multimedia play)
Voice path for Head_Set as below:
MSM7201A HPH_R, HPH_L
J401 headset Jack
Connect the phone to network
Equipment and setup call
Setup 1KHz tone out
Or Play Multimedia Contents
And insert head_set
EAR_SENSE is high?
(Or Som e Sound Signal)
appear at C516, C517 ?
The sine wave appear at
LGE Internal Use Only
→
→
C516, C517
Start
And insert head_ Set
YES
The s ine wave
YES
R416, R417 ?
YES
Can you hear the tone
or sound?
YES
END
U503 (Audio Subsystem)
NO
Change th e Main board
NO
Change the Main board
NO
Check the U503
Or chang e the M ain b'd
NO
Check the J401
or ch ange the Main b 'd
Copyright © 2009 LG Electronics. Inc. All right reserved.
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→
R416,417 #3, #4 pin of
Only for training and service purposes
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Table of Contents
Troubleshooting
