Nokia 6233 - GSM Transmitters; GSM900;1800;1900 TX Troubleshooting

NO. Signal Name Test point GSM900 GSM1800 GSM1900
1 RXIP (out) J7515 124mVpp,
730mVDC
106mVpp,
760mVDC
100mVpp,
780mVDC
2 RXQP (OUT) J7517 124mVpp,
730mVDC
106mVpp,
690mVDC
100mVpp,
690mVDC
3 VC1_TXFEM J7530 0V 0V 0V
4 VC2_TXFEM J7531 0V 2.7VDC 2.7VDC
5 VC3_TXFEM J7532 0V 0V 2.7VDC
1 Measure RXIP 1
and RXQP 2 .
2 Measure front end module control signal voltages
3, 4 and 5 .
Figure 47 GSM900/1800/1900 RX test points
GSM Transmitters
GSM900/1800/1900 TX Troubleshooting
Preparations
Make the following settings:
RM-123; RM-145
Nokia Customer Care RF troubleshooting
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