Nokia RH-21 Series Troubleshooting Manual page 23

CCS Technical Documentation
Check RF level at RX
IF filter input at 135.54
MHz
Y
Check RF level at RX
IF filter output at
135.54 MHz
Y
Check RX I and Q
signals at I: J801(+),
J803(-) and Q:
J804(+), J802(-)
Y
Check UEM and start
baseband troubleshoot
Issue 1 05/2003 Confidential
N
Check RF level at J751
and J752 at 2034.06
MHz
Change SAFARI
(N801)
N
Change RX IF filter
(Z830)
N
Check RF level by
L730 without having
electrical contact at
271.08 MHz
Change SAFARI
(N801)
Nokia Corporation
N
Start synthesizer
troubleshoot
Y
Note !
Check all discrete components and
voltages around SAFARI
N
Start synthesizer
troubleshoot
Y
RH-21
Troubleshooting
Page 23