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Only for training and service purposes
4. Trouble Shooting
Yes
No
TP Command
-mode =4
- WTXC=9750, 1,754,643,418,568
22dBm ?
Check Duplex output
(C129, L112)
To Check PAM
output
WCDMA PAM is OK
See the Next page
Level
< -
10dBm?
No
Download the SW
& Calibrate
Level
>2dBm
Check C149
To Check PAM Input
level
Check the WCDMA RF Tx Chip (RF3100)
Yes
Yes
1.1V at
Po_max
?
Check C115, C157
To Check PAM control
signal from AB3000
(Bias_CTRL)
Check the RF3100
to WCDMA PAM Signal line
3.4V ?
Check C133, C110
To Check PAM VCC
BIAS
from DC/DC converter
(VCC_WPA)
No
No
No
Change
the DC/DC
Yes
Yes
Change The PAM
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