Nokia 6255 Service Manual

Nokia Customer Care

RF Description and Troubleshooting

6255/6255i/6256/6256i (RM-19)

Issue 2 05/2005

©2005 Nokia Corporation     Company Confidential

Page 7

Antenna 
connector

PCS PA

Cell PA

Cell Tx filter

PCS Tx filter

N7000: 
Tx Upconverter

FM radio IC

Tomahawk 
connector

Flash

D2800 
processor

VCO

Diplexer

Cell duplexer

PCS duplexer

Synthesizer IC

Headset jack

Rx RF Cell filter

N7160: 
Rx front-end

Rx RF PCS filter

Rx IF AMPS filter

VCTCXO

Rx IF CDMA filter

N7100:
Rx downconverter

UEM

Bluetooth IC

Cell coupler

PCS coupler