5-26 Troubleshooting Charts
October 28, 2002 6881076C25-D
Chart C.33 ASTRO Spectra Plus VOCON Key Load Fail
Make sure the Secure Module is connected
to the Plus VOCON board and the radio is ON
Connect the Key Loader and download
the appropriate secure key. Reset radio.
Note: Use only supported KVL kits and
encryption types
Correct
equipment?
Obtain correct KVL
and cable
With KVL attached to radio,
verify display message
“KEYLOAD”
KEYLOAD
message
displayed?
Verify and repair connection
of OPT_SEL2/KEYLOAD*
from KVL to Universal
connector to J206
With the KVL attached to the
radio and radio on, initiate a
keyload by pressing PTT on
the keyloader and look for
activity on P1-15
Verify and repair connection
of KEYLOAD* from J501-21
to P1-15
Activity?
Replace Secure
Module
Good
connection?
Repair connection
Verify connection
across J801
Yes
Yes
Yes
Yes
No
No
No
Synopsis
This failure relates only to secure equipped
radios and indicates a failure to load a key
with the KVL indicated by the message
“xFail” and keyfail tone. Typical failure modes
would be:
1) Keyload line not connected properly.
2) Use of wrong KVL or KVL cable.
3) Failure of Secure Module.
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