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G800 Service Manual
6.6.3 Power Amplifier Module
- First check the Power Supply Check point following 6.3.2. 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
PANTECH
Typical Value
Condition
2, 3, 4
3, 4
2
Step 3-1
Fig.6-5. PAM TXEN Test Point Circuit
- 46 -
Checking Point
Check route connection : TXEN
Check this pin 2, When Logic High,
then DCS or PCS Mode. While Logic
Low , GSM mode is operating.
R&D CONFIDENTIAL
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