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Nokia Customer Care RF Description and Troubleshooting

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

Issue 2 05/2005 ©2005 Nokia Corporation Company Confidential Page 7

Figure 2: Main PWB component layout - bottom

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