Troubles Hooti - JRC JRL-2000F Service Manual

13.
Troubleshooting
One of A1 to A9 (alphanumeric) is displayed on the front panel when the JRL-2000F
issues an alarm. These displayes are helpful when troubleshooting. The trouble can
be caused by exciter, antenna or wraparound, etc. even if the JRL-2000F issues an
alarm. Troubleshooting procedures, based on alarm information, will be described in
this chapter.
+
Troubleshooting procedures based on alarm information
._ When A1 or A2 (power supply failure) is displayed:
No
Gauses exist outside
the JRL-2000F.
(exciter etc.)
START
Does VD become
80V when PA is
turned on?
Apply power
graduallyfrom the
exciter.
ls A1 or A2
displayed?
Power supply unit
failed
No
21
Remove the 2 fuses
from between the
power supply and
PA.
Does VD become
80V when PA
is turned on?
Refer to "When PA fails (1 )"in "Detailed
Troubleshooting Procedures When PA
Fails"(page 24).
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