Tx Dc Test Points - Nokia 7088 Troubleshooting Manual

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TX DC Test Points

Test Point Description
1 PA_ON
2 PA_R1
3 LOCK_DET
4 TX_AGC
5 Tx IQ in
6 DAC_REF
7 VREG_MSMP
8 VREG_RFTX
Table 1 shows the Tx DC Test Points shown in Figure 5.
Issue 1 11/2006 © 2006 Nokia Corporation
Figure 5: Tx DC test point
Value
2.95V for PA turning on, 0 V for turning off
2.01V for high gain mode,1.46V for low gain
mode
2.96V for Lock, 0 V for unlock
1.85V for 5dBm, 2.04V for 15dBm, 2.28V for
25dBm.
0.84 V With oscilloscope: 500 mV p-p
1.82V
2.96V
2.65V
Table 1: Tx DC Test Points
Company Confidential
RF Description and Troubleshooting
7088 (RM-219)
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