Pub. 42004-645L2C
Model 723-801 SmartSeries
®
Remote Subset Amplifier
Page: 12 of 15
d:\standard ioms - current release\42004 instr. manuals\42004-645l2c.doc
01/04
Troubleshooting
Problem
Possible Solution
There is any problem with
station performance.
Remove the assembly from the enclosure and examine it carefully for
obvious faults such as unconnected plugs, loose connections where the
wires from the handset and hookswitch connect to the Handset Amplifier
PCBA, and so on. Determine whether the fault is in the assembly, or in
the system, by plugging in a known good spare assembly (set to the same
address as the assembly removed). If the fault is in the assembly, remove
it for repair.
Note
: When replacing the assembly, perform the following steps:
1.
Set the address on the new assembly to 03.
2.
Plug the assembly into the enclosure.
3.
After about 10 seconds, remove the assembly. The station is now set
up to request a download of configuration variables from MCU.
4.
Set the address to the correct address.
5.
Plug the assembly back into the enclosure. The station initiates a
configuration download request. The time required to complete the
download depends upon system configuration and system activity,
but several seconds is typical.
Speaker volume needs
adjustment.
Use the
USER ADJ
control to adjust the Minimum Level, Offset Level,
or VLC Level (as appropriate). Refer to the Adjustments section of this
document.
Incoming handset speech
level needs adjustment.
Use the
RCVR VOL
control to adjust the handset receiver volume. Refer
to the Adjustments section of this document.
Outgoing speech level is
too low for other users.
Use the
XMIT LEVEL
control to adjust the audio transmit level. Refer to
the Adjustments section of this document.
Crosstalk occurs.
Likely to be external to the assembly and related to system cable faults.
Acoustic feedback or
speech distortion during
page or party operation or
the user hears himself
when speaking.
•
If the problem affects all stations, the line may not be terminated
correctly, may have loose connections, or a short to ground. Line
balance connections are critical.
•
If the problem affects only this assembly, the problem may be with its
sidetone setting. Contact GAI-Tronics’ Field Service Department.
Feedback during page
only.
•
Check within the enclosure for a purple wire on terminal 7: this is the
default setting for local speaker mute. If the wire is on terminal 8,
then the speaker is un-muted and may be causing feedback. Connect
the wire to terminal 7.
•
An adjacent speaker could be causing feedback. If an adjacent
speaker is the source of the feedback, adjust the orientation of the
speaker so that it is not aimed directly at the station. As a last resort,
enable the mutual muting function of the station. This is done by
interconnecting terminal 7 of the two stations with the spare orange
wire in the system cable (if this wire is available).
