LG U8110 Service Manual page 160

TP Command
-mode =4
- Wtxc=9750,0,1,0
- Syct=10700
- Txgn=1,43
-TFTI=10700
23dBm ?
Check Duplex output
(C1012)
Yes
To Check PAM output
WCDMA PAM i s OK
See t he Next page
Check R1605
To Check PAM Input level
Check R1617
To Check PAM control
signal from
Vincenne(N2000)
(WPAREF)
Check R1603
To Check PAM VCC BIAS
from DC/DC
convertor(N1620)
(VCCWPA)
No
Level
< -10 dBm?
Yes
Level
>2 dBm
Yes
2.5V ?
Yes
3.4V ?
Yes
Change The
PAM (N1630)
- 161 -
4. TROUBLE SHOOTING
No
Download the SW
& Calibrate
No
Check the WCDMA RF
Tx Chip(Wivi)
No
Check the Vincenne
to WCDMA PAM Signal line
No
2.5V ?
No
Change
the Rosaili