3. TROUBLE SHOOTING
- 23 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3.4.5 Checking RF Tx Level (GSM850/900)
START Set the Phone Tx is ON, Set RGI=90
Change the Board
Check TP5(C1327) at
U1300
Check OVER 21dBm
Check TP21,22,23 at U1300
Check Over
TP21,22 : Over 3.0V
TP23 : Over 1.7V
Check TP15(L1325) at U1300
Check OVER -3dBm
PAM Circuit is OK, See next Page
PM8926 is OK
WTR1625L is OK
YES
YES
YES
NO
NO
NO