Hubbell 723-001 specifications Maintenance, Troubleshooting

Models: 723-001

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Maintenance

 

Pub. 42004-145C

Model 723-001 Remote Handset/Speaker Amplifier

Page: 4 of 6

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

The line may be improperly terminated. Inspect the system cable

buzz on the line) occurs during all

for loose connections, shorts, and grounds. Line balance assembly

Page/Party® station operation.

connections are critical.

 

 

 

Associated speaker level requires

1.

Adjust the speaker volume control located on the front panel of

adjustment.

 

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.

 

 

 

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Hubbell 723-001 specifications Maintenance, Troubleshooting