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CHAPTER 4. Trouble Shooting
CHAPTER 4. Trouble Shooting
4.1 Rx Part Trouble
4.1.1 When Rx Power isn't enough
Test Point
Duplexer
VCTCXO
VCTCXO
Checking Flow
Rx TEST SETUP(HHP)
- Test Channel : 384
E5515C Setup
- CH : 384
- Sector Power : -30 dBm
Spectrum Analyzer Setting
Oscilloscope Setting
1. Check
PMIC Circuit
2. Check
VCTCXO Circuit
3. Check
3
4
RFR6122
START
Rx VCO
5
2
PMIC
Figure 4-1
4. Check
Control Signal
5. Check
Duplexer
Mobile SW
6. Check
Rx I/Q data
Redownload SW, CAL
1
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