User Guide

CC Technical Documentation Troubleshooting - FM Radio

RM-11

Troubleshooting - FM Radio

The FM radio circuits are located on the bottom of the PWB, near the Tomahawk

connector.

Figure 1: FM radio circuits

FM Radio Testing with Tomahawk Headset

1. Connect the Tomahawk headset (HDS-3) to the Tomahawk connector (bottom

connector).

2. Select “Radio” from the phone’s User Interface Menu control.

3. Set a local radio station by selecting “Automatic Tuning” from the Radio Menu

and pressing the UP arrow.

4. Listen for sound out of the Tomahawk headset.

• If there is a signal present, continue with step 1 in the next section,

"FM Radio Testing with UHJ Headset".

• If there is no static or sound present, inspect all the FM radio circuits on the

bottom PWB layer and refer to the Troubleshooting - Baseband section of

this manual on audio amplifier troubleshooting.