LG KF750 Service Manual page 178

Check Vapc level at
Check if there is any Major
difference.
Refer to Figure 4-20.
Check
GSM900/DCS/PCS PAM
output power at
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
.
GSM900>1.5 V?
DCS/PCS>1.3 V?
GSM900:33.0dBm
DCS: 31.0dBm
.
GSM Tx path OK. See Next page to check
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4. TROUBLE SHOOTING
No
Yes
No
Yes
Redownload SW, Cal
Changing GSM PAM
(U100)
LGE Internal Use Only