GAI-Tronics 7245-005 SmartSeries Indoor Remote Subset Amplifier Enclosure - Manual (Page 8)

Pub. 42004-684L2B
Model 7245-005 Indoor Remote Subset Amplifier Enclosure Page: 8 of 9
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Preventative Maintenance
Regular inspection and a good preventive maintenance program will increase the reliability of your
GAI-Tronics station.
The following procedure can be used to keep your amplifier enclosure operating effectively:
1. Disconnect power to the enclosure.
2. Remove the amplifier from the enclosure.
3. Inspect each conductor for fraying, cracking, corrosion, etc. If it becomes necessary, re-terminate the
conductors by stripping the wires back to clean copper and replacing the lugs.
4. Using a Model 10440-002 extension cable, plug the amplifier into the connector in the enclosure.
Check the amplifier control settings. If necessary, make adjustments to maximize performance.
Instructions on amplifier adjustments can be found in the manual for the amplifier.
5. Reinstall the amplifier in the enclosure. Ensure that all gaskets and hardware are in place. Failure to
install the gaskets, which also act as spacers, can damage the connectors on the amplifier and
enclosure causing system faults.
Troubleshooting
The following table lists some of the most common difficulties encountered in systems. Included are
some troubleshooting hints to aid in remedying these problems.
Problem Solution
Feedback occurs only
during page. Use the muting feature in the amplifier enclosure at the terminal blocks.
Connect the violet wire at terminal 8 to terminal 7, or reposition the speaker.
In some cases, the speaker of a nearby station may have to be repositioned.
Crosstalk occurs. One or more system cable pairs may be improperly terminated or a fault
exists somewhere else in the system. Visually inspect the system cable
connections for accidental crossing of the cable pairs or grounds.
Remote subset is
inoperable. • Verify that the connector of the remote subset is securely connected to the
subset receptacle of the enclosure.
• Remove the amplifier from the enclosure. Re-install the amplifier
ensuring the enclosure connector and the amplifier connector are aligned
properly.
Auxiliary inputs do not
operate. • Remove the amplifier and verify the lugged auxiliary input wires are
properly terminated on terminal points TB1-10 and TB1-11 respectively.
• Verify the auxiliary inputs have been enabled in the system software.