GAI-Tronics 723-003 24 V DC Remote Handset/Speaker Amplifier - Manual (Page 4)

Pub. 42004-259E
Model 723-003 24 V DC Remote Handset/Speaker Amplifier Page 4 of 6
f:\standard ioms - current release\42004 instr. manuals\42004-259e.doc
04/13
Maintenance
The following adjustments are accessible through the rear chassis of the remote amplifier using a small
standard screwdriver. Each adjustment is clearly labeled:
 Microphone Gain: adjusts the gain level from the microphone signal to the page or party lines.
 Receiver Sidetone: adjusts the signal transmitted from the microphone to the receiver of a handset.
 Receiver Volume: adjusts the gain level from a party line to the receiver.
Troubleshooting
The following table lists some hints to aid technicians in troubleshooting:
Problem Solution
Feedback/distortion (a hum or
buzz on the line) occurs during
all Page/Party
® station operation.
The line may be improperly terminated. Inspect the system cable
for loose connections, shorts, and grounds. Line balance assembly
connections are critical.
Associated speaker level requires
adjustment. 1. Adjust the speaker volume control located on the front panel
of the subset, if equipped. Refer to Figure 1.
2. Adjust the speaker volume control at the amplifier. Use a
small standard screwdriver to perform these adjustments.
Refer to Figure 1