Telecast
17
Table 7. Troubleshooting Chart
Symptoms
Possible Cause
Corrective Action
No operation, indicators all
off
No power
Make sure the power switches of both units
are
on
, and their external supplies are
delivering between 13.8 to 24 VDC.
No operation
INTERNAL
RESERVE
LED
off
Battery depleted and either
power switch
off
Make sure the power switches of both units
are
on
.
Recharge battery.
Normal operation
INTERNAL
RESERVE
LED
red
Internal battery depleted
The light should go back on after 1/2 hour
of use with the AC power adapter. If it does
not go on, replace the battery.
No operation
LINK
STATUS
LED
on
Optical communications
failure
Check for broken or disconnected Þbers or
that the Adder 882 unit at the other end is
not operational. On a one Þber system,
refer to Figure 2 on page 2.
Very low signal output on one
audio channel
Microphone on input with
0
dB
selected
Move internal slide switch to
40 dB
setting.
Signal distorted on one channel
Line
input with
4
0
dB
selected
Move internal slide switch to
0
dB
setting.
Internal reserve battery fails
quickly
Reserve battery is not
charged
Connect to power source of 13.8 to 24
VDC for 16 hours.
System goes dead as soon as
external power is removed
Reserve battery dead or
disconnected
Check the battery connection.
Replace the battery if necessary.
