3. TROUBLE SHOOTING
- 22 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3.4.4 Checking RF Tx Level (LTE B26, WCDMA B1, CDMA BC0)
START Set the Phone Tx is ON, Set RGI=90
Change the Board
Check TP2(C1320) at
U1300
Check OVER 21dBm
Check TP21,22,23 at U1300
Check Over
TP21,22 : Over 3.0V
TP23 : Over 1.7V
Check TP12(L1308) at U1300
Check OVER -3dBm
PAM Circuit is OK, See next Page
PM8926 is OK
WTR1625L is OK
YES
YES
YES
NO
NO
NO