5: Maintenance
PRC1099A-MSOP 5-3
Operational
Check List
Use this check list before your equipment is placed in operation, during
operation and after shutdown. If the corrective measures do not work, the
problem requires a report to technical personnel.
1. Connect the handset.
2. Install the antenna.
3. Turn the VOLUME knob to 5.
4. Turn the CHANNEL knob to the channel to check.
5. Turn the POWER knob to LO or HI. The displayed channel number should
match the position of the CHANNEL knob. If not, try one or all of the
following:
• Reset the channel or frequency (refer to "Setting Channels and
Frequencies" on page 4-3).
• Ensure the Accessory cover is completely connected to accessory
connector.
• Replace the battery (refer to "Installing the Battery" on page 2-2).
6. Set and hold the MODE knob to LITE. Normally the backlight displays. If
the backlight does not go on,
• Report this information to technical personnel.
7. Turn the MODE knob to USB. Normally, background noise is heard. If you
don’t hear background noise,
• Report this information to technical personnel.
8. Turn the MODE knob to squelch. Normally, background noise stops. If
background noise does not stop,
• Report this information to technical personnel.
9. Listen to test signals from a nearby set operating on the same frequency.
If signals are not heard loudly and clearly,
• Check the antenna.
10. Transmit a test signal to a nearby set. If you don’t hear sidetone in the
handset or get a response from the test station, try one or more of the
following:
• Fully seat the antenna.
• Tune the radio.
• Replace the battery.
Repair Parts If you need to replace any of the external portions of the radio, refer to the
figure and table below when considering replacement parts.
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