LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 114 -
4.13 Receiver Path
MSM6280 RCV+/RCV-
→
CN833
→
Slide FPCB
→
Receiver
Start
The sine wave appears at
PIN3,PIN4 of Slide FPCB CON4
Change the Main board
YES
Connect the phone to network
Equipment and setup call
Setup 1KHz tone out
NO
The sine wave appears at
PIN3,PIN4 of CN833?
YES
NO
Can you hear the tone?
Change receiver
YES
NO
END
Slide FPCB re-connecting.
Содержание L704I
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