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G310 Service Manual
6.5.3 Power Amplifier Module
- First check the Power Supply Check point following 6.5.2. Then you can trace the guideline of PAM as
follows .
Test
Step
point
Z710
3-1
Logic High
Pin#3
Logic High
Z710
3-2
Pin#2
Logic Low
Typical Value
Condition
2, 3
3, 5
2, 4
Fig.6-5. PAM TXONPA Test Point Circuit
PANTECH
Check route connection : TXEN
Check this pin 2, When Logic High,
then PCS Mode. While Logic Low ,
GSM mode is operating.
48
R&D CONFIDENTIAL
Checking Point
STEP 3-1
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