Checking Pam Block - LG E900 Service Manual

4.5.4 Checking PAM Block

PAM control signal
WCDMA_2100_ON ,W_1700_1900_ON ,W_850_900_ON : PAM Enable
WCDMA_PA_RO: PAM Gain Control
PAM Enable must be HIGH (over 2.6V)
PAM IN/OUT Signal :
When PAM is under the operation of high power mode
PAM OUT power must be over 21 dBm
PAM IN power must be under 10 dBm
TP2
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Only for training and service purposes
(WCDMA_PA_R0
Test Point (TX Level)
- 77 -
4. TROUBLE SHOOTING
:Low),
TP3
TP3
TP1
LGE Internal Use Only