Anritsu MT8802A - Adjustments After Unit Replacement

4-5
4.2 Adjustment after Unit Replacement
4.2 Adjustment after Unit Replacement
After replacing each unit, perform adjustment and calibration according to the table
below. However, the adjustment and calibration about units omitted in the table are not
required.
Phenomenon Cause to be supposed
Fault block
A01 MAIN CPU
A05 MOD DSP
A09 RF INTERFACE
A10 CONVERTER
A11 LOCAL
A12 IF
A13 SG1
A16 AF
A32 Demod RF
A31 CDMA IQ
5.8 Serial No. setting
5.5 MOD DSP
5.2 Power meter
5.3 IF Gain
5.1 Span (≤1 MHz)
5.1 Span (FM coil)
5.1 Span (Main coil)
5.3 IF Gain
5.1 Span (≤1 MHz)
5.2 Power meter
5.3 IF Gain
5.4 The detection level
5.5 MOD DSP
5.6 AF
5.7 CDMA IQ
5.6 AF
5.7 CDMA IQ
MAIN terminal output
AUX terminal output
MAIN teminal input
AUX terminal input
Power meter
Spectrum Analyzer
MAIN terminal output
AUX terminal output
MAIN teminal input
AUX terminal input
Power meter
Spectrum Analyzer
MAIN teminal input
AUX terminal input
Power meter
Spectrum Analyzer
MAIN teminal input
AUX terminal input
Power meter
Spectrum Analyzer
MAIN terminal output
AUX terminal output
MAIN terminal output
MAIN terminal input