Audio - LG L705ix Service Manual

4. TROUBLE SHOOTING

4.13 Audio

MSM6280 RCV+/RCV- → R228 → U203 → CN501→ Slide FPCB (Main to Slide) → Speaker
Conn ect the phone to netw ork
Equipment a nd setu p call
Setup 1 KHz tone ou t
Can you hear the ton e?
The sine wave appears a t
Speaker p ad
The sine wave appears a t
PIN7,PIN8 of CN501
The sine wave appears a t
R227. R228
Chan ge th e Main board
LGE Internal Use Only
Start
YES
NO
YES
NO
YES
YES
NO
- 96 -
END
Chan ge rec eiv er
Slide FPCB Re-conn ecti ng
or Change Slide FPCB.
Chan ge U203(Anglog S/W)
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