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TROUBLESHOOTING: Digital Analysis Test
GPS Receiver Test (Continued)
Place UUT in BERBUG
MODE and Power up.
Connect UUT to CW
Generator.
While in
BERBUG Mode,
type "gps on"
Is UUT
responding
?
Pass
Probe iDEN/GPS
C502 Diplexer
Common Port.
Is RF Signal
~-95 dBm
(+2 dBm)?
Pass
TP_GPS_IFout
TP_GPS_IFoutX
Is RF Signal
~40 dBm
(+2 dBm)?
Pass
Continued
on next
page
108
Notes:
1. US = Unsoldered component/connection.
2. MP = Missing part(s).
3. DFP = Defective part(s).
Fail
Is
UUT Drawing
~165 mA?
Pass
Check
Baud Rate
of Unit.
Fail
Check Antenna Coax
Connecting, grounding, US, MP.
Fail
Check FL501
for US, DFP.
Fail
Is
Data Cable
Connected?
Pass
Problem
in DC Block
of Unit.
Fail
Connect
Data Cable
and Retest.
6880401P26-O
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