LG AT&T GR500 Service Manual page 153

4. TROUBLE SHOOTING
Check Vapc level at ③.
Check if there is any Major
difference.
Refer to Figure 4-20.
Check GSM900/DCS/PCS
PAM output power at ④.
LGE Internal Use Only
GSM900>1.5 V?
DCS/PCS>1.3 V?
Yes
GSM900:32.5dBm
DCS: 29.5.0dBm
Yes
GSM Tx path OK. See Next page to check
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No
Redownload SW, Cal
No
Changing GSM PAM
(U200)
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