GAI-Tronics 7165-102 Manual del usuario - Página 9

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GAI-Tronics 7165-102 Manual del usuario
Model 716-102 and 7165-102 Flush-Mount Subsets

Troubleshooting

The following table lists some hints to aid technicians in troubleshooting:
Problem
Outgoing conversation level
requires adjustment.
Incoming conversation level
requires adjustment.
Sidetone (how the operator
hears himself) requires
adjustment.
Feedback/distortion (a hum or
buzz on the line) occurs
®
during all Page/Party
station
operation.
Feedback occurs during
paging.
Crosstalk occurs.
Miscellaneous
f:\standard ioms - current release\42004 instr. manuals\42004-643l2e.doc
04/13
Possible Solution
1. Adjust the microphone gain at the remote amplifier.
2. Replace handset microphone.
1. Adjust the receiver volume control at the remote amplifier.
2. Replace the receiver element in the handset.
1. Adjust the receiver sidetone at the remote amplifier.
2. Check the wire terminations for proper connections in the line
balance assembly.
1. Adjust the receiver sidetone at the remote amplifier.
2. The line may be improperly terminated. Inspect the system cable
for loose connections, shorts, and grounds. Line balance
assembly connections are critical.
Use the muting feature in the amplifier enclosure at the terminal
blocks as detailed in the enclosure manual.
One or more system cable pairs may be improperly terminated.
Visually inspect the system cable connections for accidental crossing
of the cable pairs or grounds.
A defective handset/speaker amplifier printed circuit board assembly
(PCBA) can cause numerous problems. If the station is not
functioning properly, it may be worthwhile to replace the
handset/speaker amplifier PCBA.
Pub. 42004-643L2E
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