Bird-technologies AT-500-Manual User Manual download pdf (Page 65)

Maintenance

Troubleshooting

Operator maintenance or service is limited to battery

and fuse replacement. Any other required service must

be performed at an authorized Bird Service Center.

Refer to the following paragraphs for help in isolating

error conditions.

The Antenna Tester will not power up.

Power for the Antenna Tester can be provided in three

ways—the internal batteries, an AC mains adapter or an

optional automobile cigarette lighter adapter. Try to

power the tester using each available means. The inter

nal batteries may need charged, or if recently replaced,

are installed incorrectly. The AC mains adapter may not

be securely connected, may be damaged, or there is no

power supplied at the wall receptacle. The internal fuse

may have opened and requires replacement.

If the unit was recently opened, recheck P2, the bat-

tery connector, be sure it is securely connected. Follow

the instructions for battery and fuse replacement

when opening the unit.

NVRAM Test Fails

An NVRAM error indicates the information in nonvola-

tile RAM, a type of memory, is not valid. The probable

cause is power was lost. When the unit is off, the bat

teries, if charged and present, or power from the AC

mains adapter, if connected, supply power to retain

stored trace data and software settings. This informa

tion is lost if all power is removed. Clear the error by

pressing the ESC key. Be sure to read battery charging

and replacement sections if the problem persists.

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Bird-technologies AT-500-Manual User Manual Page 65