Receiver If Test Points - Nokia 3155 Rf Description And Troubleshooting

Nokia Customer Care

Receiver IF Test Points

1
3
Figure 35: Receiver IF test points on the bottom side of the main PWB
Table 10 includes the descriptions and values for Rx IF test points from
Test
Description
Point
1 Rx VHF LO
2 CDMA IF (to SAW) 128.1MHz
3 CDMA_IF_P (to the N7100)
128.1MHz
4 CDMA_IF_N
5 AMPS IF (to MCF) 128.1MHz
6 AMPS_IF_N (to the N7100)
128.1MHz
7 AMPS_IF_P
ISSUE 1 07/2005
6
7
4
Table 10: Receiver IF Test Point Values
©2005 Nokia Corporation
3155/3155i (RM-41), 3152 (RM-61)
RF Description and Troubleshooting
5
2
Value
256.2MHz at -70dBm
High gain: Cell channel 384 at -9dBm
Low gain: Cell channel 384 at -25dBm
High gain: PCS channel 600 at -8dBm
Low gain: PCS channel 600 at -24dBm
Cell high gain: -29dBm
Cell low gain: -45dBm
PCS high gain: -29dBm
PCS low gain: -45dBm
Cell high gain: -29dBm
Cell low gain: -45dBm
PCS high gain: -29dBm
PCS low gain: -45dBm
High gain: Cell channel 384 at -19dBm
Low gain: Cell channel 384 at -35dBm
Cell high gain: -28dBm
Cell low gain: -44dBm
Cell high gain: -28dBm
Cell low gain: -44dBm
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Figure 35.
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