Nokia 6233 - Page 165

Setting GSM900 GSM1800 GSM1900
Phoenix RF Control
Phoenix Tx Power level
Operational mode = Burst
Tx data type = Random
10 5 5
Check the following
Check the voltages in the steps below.
NO. Signal Name Test point GSM900 GSM1800 GSM1900
1 V_Det_GSM J7533 730mVDC 660mVDC 690mVDC
2 PA_supply-VBAT C7521 3.8VDC 3.8VDC 3.8VDC
3 RF level-ANT_GSM Conn. 23dBm 20dBm 20dBm
4 Sw cont-VC1_TXFEM J7530 2.75VDC 2.75VDC 2.75VDC
5 Sw con-VC2_TXFEM J7531 0V 2.75VDC 2.75VDC
6 Sw con-VC3_TXFEM J7532 2.75VDC 2.75VDC 2.75VDC
7 Tx-1 R7522 897.4MHz/-28.7
dBm
- -
Figure 48 GSM900/1800/1900 TX test points
RM-123; RM-145
RF troubleshooting Nokia Customer Care
Issue 1 COMPANY CONFIDENTIAL Page 7 –9
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