LG VX5400 Service Manual page 58

Rx TEST SETUP (HHP)
- Test Channel: 384
- Test Band : US Cellular
- SID: 2004
- Sect or Power: - 30 dB m Spectrum Analyzer Setting
Oscilloscope Setting
Check pin 4 at U107
Check if there is any major difference referring
To Figure 4.1.2 (c), (d)
Check pin 13at U 107
Check if there is any major difference referring
To Figure 4.1.2 (c), (d)
LNA is O.K Check the Rx I/Q Signal
LGE Internal Use Only
Checking Flow
Start
YES
YES
Checking Flow
Check signal path between pin 1
and 4 at U101
NO
Pin 9 and 15 are High?
NO
Copyright@2007 LG Electronics. Inc. All right reserved.
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.
YES
Replace U107 Check PMIC and MSMP
Only for training and serving purposes
NO