Transmitter Troubleshooting; Cell Transmitter - Nokia RH-3 Series Troubleshooting - Rf
Transceivers
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Also See for RH-3 Series:
- Troubleshooting - bb (40 pages) ,
- Troubleshooting - gps (28 pages) ,
- Troubleshooting - antenna (16 pages)
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CCS Technical Documentation
5 Ensure MIN, MDN, and SID are entered into the phone.
6 Ensure VCTCXO is centered, as described in VCTCXO tuning description.
7 Ensure transmitter and receiver are working properly by checking them in local
mode.
Transmitter Troubleshooting
Cell Transmitter
Cell Transmitter Path
The following table indicates the test points to probe when troubleshooting the cell
transmitter path. The steps shown are the recommended but do not have to be followed
in that order. Refer to the Appendix for a reference diagram that illustrates the test
points on the circuit board. An HP high frequency probe is used to make the frequency
and output power measurements.
Setup:
Tx
Mode
Local
On
Chnn
384
600
Issue 1 06/2003
Constant Reference
Values
CELL Oscillator and IF:
VHF Tx Lo
457.2
VHF Rx Lo
367.2
CW or
Rx
Band
CDMA
On
PCS/CELL
CDMA
Tx Freq
Rx Freq
UHF
836.52
881.52
1065.12
1880
1960
2143.6
Nokia Corporation
Tx IF
228.6
Rx IF
183.6
BB GenIO
GenIO 8 = H
GenIO 12 = L
GenIO 13 = L
Confidential
RH-3
Troubleshooting - RF
PDM
Rho
TxIF and RF
On
AGC = 0
Page 7
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Troubleshooting
