Nokia 8208, Service Manual, Page: 100 / 170

RM-384
RF Troubleshooting
Page 4-12 Company Confidential Issue1
Copyright © 2008 Nokia. All rights reserved.
TX RF Test Points
Figure 41 Tx RF Test Points
Test
Point
Description Value
Check
component
1 TX_AGC_ADJ 1.85V for 5 dBm, 2.1V for 15 dBm U202
2 RFT6150 output -17 ~ -10 dBm U202
3 Cellular SAW output Max atten 7dB SAW201
4 Cellular PA output Gain 5~15dB U201
5 Cellular Coupler Output Max atten 7dB U207
6 Cellular Duplexer Output Max atten 3dB DPX102
7 Diplexer Out Max atten 3dB DPX101
13 RF connector 20 dBm J100
Table 18 Cell band Tx check shows the test points shown in Figure 41.
Test
Point
Description Value
Check
component
8 RFT6150 output -18 ~ -12 dBm U202
9 PCS PCS SAW output Max atten 7dB SAW202
10 PCS PA output Gain 5~15dB U204
11 PCS Coupler Output Max atten 3dB U208
12 PCS Duplexer Output Max atten 3dB DPX103
7 Diplexer Out Max atten 3dB DPX101
13 RF connector 19 dBm J100
Table 19 PCS band Tx check shows the test points shown in Figure 41.