LG F2400 Service Manual page 55

4. TROUBLE SHOOTING
(4) Checking PAM Control Signal
Test Points
Waveform
Checking Flow
Check TX_RAMP and PA_EN Check TX_RAMP and PA_EN
Check if there is Check if there is
Any Major Difference or not Any Major Difference or not
Refer to Graph 4- 7 Refer to Graph 4- 7
PA_EN (R502)
TX_RAMP (R509)
Graph 4 -7
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Circuit Diagram
No No No
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