User Guide

Nokia Customer Care RF Description and Troubleshooting
2115i/2116/2116i (RH-66)
Issue 1 03/2005 ©2005 Nokia Corporation Company Confidential Page 13
TX DC Test Points
Figure 8: Bottom side Tx DC test points
Table 4 shows the Tx DC test points shown in Figure 8.
Table 4: Tx DC Test Points and RF Supply Line Resistance to Ground
Test
Point
Description Value RF Supply Lines Resistance to Ground*
1 VIO 1.8 V
>1M
Ω to ground
N7100, N7000, UHF PLL
2 VR3 2.78 V (synthesizer)
>500k
Ω to ground
VCTCXO
3 VR7 2.78 V (Rx)
~500k
Ω to ground
N7100
4 VR5 2.78 V (Rx)
3.2~5.1
Ω to ground
N7160, N7100
5 VR4 2.78 V (Rx)
4.3k
Ω to ground
VCO
6 VR6 2.78 V (Tx)
300k
Ω to ground
N7000
7 VR2 2.78 V (Tx)
7.5k
Ω to ground
N7000, PA detector
8 VR1B 4.75 V (Tx)
>100k
Ω to ground
N7000
4
6
1
10
9
7
2
3
5
8