GAI-Tronics ITR1000-001 Model ITR1000-001 Basic Tone Remote Deskset with Line Select User and Installation Manual - Manual (Page 28)

Troubleshooting ITR1000-001 Basic Tone Remote Desk Set
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Problem Possible Solution
No receive audio on local
speaker or handset. Ensure that the tone remote adapter is supplying audio onto the private
circuit.
Ensure that the desk set’s local speaker is not muted. Muting is indicated
by a flashing frequency button.
There is no TX audio. Check to be sure that station transmitter is keyed when PTT is applied from
the desk set. If it is not, refer to the tone remote adapter or station manual.
Low TX audio. Verify that the desk set’s transmit output level is properly set and ensure
that there is no more than 20 dB of loss in the private or leased line, which
can cause degradation of the audio signal.
If a leased line is being used and excessive losses are measured, contact
your local exchange carrier. Check the pot 4 setting.
Distorted TX audio. Verify that the tone remote adapter’s transmit audio output level is properly
set to match the station’s rated transmit sensitivity. Refer to the station and
tone remote adapter manuals for proper setup procedures.
No audio on local speaker. Ensure that the volume is not turned down all the way, and the handset is
on-hook. If receive audio is not switched to the local speaker when the
handset is on-hook, the handset may be defective or have a defective
magnetic reed switch.
The local speaker is muted. (Indicated by a flashing frequency button.)
Fuse Replacement
CAUTION
For continued safe operation, replace fuses with the same type:
 F1 is a Bussmann GMA 750mA fuse.
 F2 is a Bussmann C515S 1.25A SB 2AG fuse.