ATCOM AT800 Series User Manual download pdf (Page 36)

AutoTune™ User Guide

29

7. Basic Troubleshooting

Symptom

Possible Cause(s)

Possible Solution(s)

Radio repeatedly fails

communication

initialization.

Serial link corruption

Retry communicating with the

radio after each of the following

steps:

• Power cycle the radio.

• Restart the analyzer.

Radio won’t power up.

Loose HKN6163_

cable connection.

Verify cable connection is OK.

Motorola CPS

Ignition Switch

setting.

Use Motorola CPS software to set

Radio Wide, Advanced, Ignition

Switch setting to “Blank”. This

setting lets radio power up for

testing without an ignition signal

present. Be sure to return this

setting to its original value when

testing completed.

Radio consistently fails TX

Power Out test and/or

alignment.

ASTRO 25 Mobile

CPS TX/Transmit

Power Level settings

limiting radio output

power.

Using ASTRO 25 Mobile CPS,

adjust Radio Configuration>Radio

Wide>TX/Transmit Power Level

settings to factory defaults. This

change lets radio output expected

power levels for correct AutoTune

TX Power Out testing and

alignment.

Deviation Balance test

following a Deviation

Balance alignment

occasionally fails at one or

more test frequencies.

Both XTL and XTS

series radios have

narrow “good” softpot

ranges. These radios

are designed such

that softpot settings

giving deviation

balance

measurements within

test limits are few,

likely one or two

softpot values.

Rerun the Deviation Balance

alignment.

Table 9-1. AutoTune Troubleshooting Chart

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 45 46

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