Nokia NSB-9 Service Manual page 191

CCS Technical Documentation
Apply input signal
1960.067 MHz
-90 dBm
Check RX IQ signal at
TP37
Start baseband
troubleshooting (UEM)
Issue 1 04/03
OSC
Check SHF VCO
output signal at TP40
3920 MHz
Check Hagar ASIC
supply voltages at
TP4, TP5, TP6, TP8:
2.78 VDC ± 3%
TP10: 1.35 VDC ± 2%
TP1: 4.75 VDC ± 3.2%
Check SDATA at
TP51, SCLK TP52,
SLE TP53
Change
Hagar ASIC
N600
Nokia Corporation
Troubleshooting Instructions
Start baseband
troubleshooting (UEM)
Check VCO supply
voltage at TP7:
2.78 VDC ± 3%
SA
Check VCO control
voltage at TP41:
3.3 VDC ± 200 mV
DMM
Change
Hagar ASIC
N600
Start baseband
troubleshooting (UEM)
Start baseband
troubleshooting (UPP)
OSC
NSB-9
DMM
DMM
Change
SHF VCO
G650
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