User Guide

Nokia Customer Care RF Description and Troubleshooting

6235/6235i/6236i (RM-60)

Receiver Block Diagram

Following is the receiver system block diagram.

Figure 24: Receiver system block diagram

Receiver Schematics

The main part of the receiver is the N7160 Rx IC. This Rx IC contains two LNA and mixers.

The rest of the components are passive. The following schematics are for general

reference only. See the Schematics chapter for detailed versions.

Figure 25: Receiver schematics - 1

N7160 Rx

front-end IC

Cell RF SAW filter

PCS RF SAW filter

AMPS IF crystal filter

CDMA IF SAW filter