Anritsu MT8802A - Page 27

4-3
4.1 Detecting Faulty Block
RX Tester
Phenomenon Cause to be supposed Fault block
The RF output signal level is not normal.
The RF output signal frequency is not normal.
BER measurement impossible (TDMA
system)
FER measurement impossible (CDMA
system)
Signal route operation error
Level setting error
LO route operation error
LO frequency setting error
LO frequency setting error
TDMA system
CDMA system
Data or CLK route operation
error
A13 SG
A05 MOD DSP
A01 MAIN CPU
A13 SG
A131 SG LOCAL
A01 MAIN CPU
A01 MAIN CPU
A19 FREQ CONT
A01 MAIN CPU
A30 CDMA BASEBAND
A04 DEMOD DSP
A32 Demod RF
A30 CDMA BASEBAND
Call Processing
Phenomenon Cause to be supposed Fault block
The mobile station is not placed into the
standby mode. (TDMA system)
The mobile station is placed into the standby
mode, but the origination and termination fail.
(TDMA system)
The mobile station is not placed into the call
connected state. (CDMA system)
Hand-over impossible (TDMA system)
Hand-over impossible (CDMA system)
TX route operation error
RX route operation error
LO frequency setting error
LO operation error
Modulation error
LO frequency setting error
LO frequency setting error
A13 SG
A131 SG LOCAL
A05 MOD DSP
A02 BASEBAND1
A03 BASEBAND2
A10 CONVERTER
A11 LOCAL
A12 IF
A04 DEMOD DSP
A30 CDMA BASEBAND
A13 SG
A131 SG LOCAL
A32 Demod RF
A30 CDMA BASEBAND
A31 CDMA IQ
A32 Demod RF
A19 FREQ CONT
A30 CDMA BASEBAND
Analog Measure
Phenomenon Cause to be supposed Fault block
An AF output signal is not normal.
The AF level measurement result is not
normal.
AF Osc. operation error
Signal route operation error
A16 AF
A05 MOD DSP
A16 AF
A04 DEMOD DSP