Reciter - Tait TB8100 User Manual

Reciter

Power up failure
Channel invalid
148 Part G: Alarms
The Reciter area shows the Alarm status of the reciter.
The reciter has failed an initialisation procedure.
1. The reciter may have failed to load the code into the DSP. Wait five
minutes; the alarm may clear.
2. The reciter may have failed to configure the Ethernet interface on the
system interface board. Because Ethernet is not available, you can only see
this alarm if you are connected via RS-232, most likely after seeing the
control panel alarm LED go on.
Other initialisation failures cannot be seen on this form; they cause the base
station to go into Download mode, in which the base station does not report
alarms to the Service Kit.
The base station has received an instruction to select an invalid channel number
and has stopped transmitting and receiving.
The channel could be invalid for one of the following reasons:
1. The channel number specifies a UHF frequency, but the base station is
VHF, or vice versa.
2. The base station cannot lock onto the specified frequency. To verify if this
is the cause, do a diagnostic test to see if the base station can lock onto the
frequency. See "Determining Synthesiser Lock Ranges" on page
3. There is a problem with the external selection of the channel.
a. Select Monitor > Monitoring > Base Station to determine whether the
channel number is determined by hardware.
b. Select Diagnose > Reciter > Digital I/O to see what the base station
thinks the hardware channel is set to.
c. Select Configure > Base Station > System Interface to check that the
base station is configured to correctly interpret the channel selection. Are
the settings for Binary or
d. Select Configure > Base Station > Channel Table to see whether a con-
figuration for the externally selected channel exists.
4. A Task Manager action
that does not exist in the channel table.
a. Check to see if a recent Task Manager action has changed the channel
number (Monitor > Task Manager > Recent Actions).
BCD format and for Invert correct?
asked the base station to go to a channel number
© Tait Electronics Limited December 2007
174.