LG C3600, Service Manual

Page: 14 / 51

4. TROUBLE SHOOTING
4.3 TX Trouble
Start
HP8922:Test Mode
Set 62CH
，
7 level
（
TCH0
Set 62CH
，
-60dBm level
（
BCCH
）
1
、
check LDO
circuit
2
、
check VCTCXO
circuit
3
、
check antenna
and mobile
communication S /W
5
、
check RAM
control signal
Download S/W and calibration
again.
3
、
check antenna
and mobile
communication S /W
4.3.1 Check LDO Circuit
Detail on 4.2.1
4.3.2 Check VCTCXO Circuit
Detail on 4.2.2
4.3.3 Check Transmit IQ
Detail on 4.2.6
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