LG U8120 Service Manual page 119

Hide thumbs Also See for U8120:
Table of Contents

Advertisement

4. TROUBLE SHOOTING
D. Headset Receiver (Voice call, Video Telephony, MP3)
START
Connect the phone to network
Equipment and setup call
Setup 1KHz tone out
Insert Head set.
Does the Headset ico n
display on the main LCD?
Does the sine wave appear
3
at C2611,C2619 ?
Does the sine wave appear
5
at C3268,C3269 ?
6
Resolder X2602 Pins
or change the Head set
Can you hear sine wave
out of the re ceiv er ?
END
NO
YES
NO
YES
NO
YES
NO
YES
- 120 -
1
Does the level of R3381
under 0.5Volt ?
YES
YES
Change t he main B,d
Change the main B íd
Change the main Bíd
NO
2
Does the level of R2613
over 2.0Vo lt ?
N0
4
Resolde r R2613,R3397
R3381,R3303.
And try ag ain fr om the start

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents