Service manual

5-16 Troubleshooting Charts
July 1, 2002 68P81076C25-C
Chart C.21 Key Load Fail
Replace U206.
Repair
connection.
Verify and repair
connection of
OPT_SEL2/KEYLOAD*
from KVL to Universal
connector to J206.
Verify the use of the correct keyloader per the following table:
Secure Board Kit(s)Kit KVL Kit(s) Encryption
NTN7770 T3010DX DVP
NTN7771 T3011DX DES
NTN7772 T3011DX DES-XL
NTN7773 T3012DX DVI-XL
NTN7774 T3014DX DVP-XL
NTN7329 T3012DX & T3010DX DVI-XL & DVP
NTN7332 T3011DX & T3010DX DES-XL & DVP
NTN7331 T3011DX & T3014DX DES-XL & DVP-XL
NTN7330 T3014DX & T3010DX DVP-XL & DVP
NTN7370
NTN1146
NTN1152
NTN1153
NTN1158
NTN1147
NTN1367
NTN1368
NTN1369
NTN1370
NTN1371 T3014DX & T3012DX DVP-XL & DVI-XL
NTN1562 NTN8408 DES-OFB
NTN1563 NTN8409 DES-OFB & DES
NTN1564 NTN8410 DES-OFB & DES-XL
NTN1565 NTN8411 DES-OFB & DVP-XL
NTN1566 NTN8412
T3011DX
T3011DX
T3011DX
T3011DX & T3014DX
T3011DX & T3012DX DES-OFB & DVI-XL
Verify the use of the correct KVL cable as a TKN8506.
With KVL attached to
radio and radio on,
verify display
message "KEYLOAD"
Obtain correct
KVL and cable.
Keyload
Failure
No
Synopsis
This failure relates only to
secure equipped radios and
indicates a failure to load key
with the KVL indicated by the
message "x FAIL" and key fail
tone. Typical failure modes
would be:
1) Open between Pin 10 of the
universal connector C which
places radio in Keyload mode.
2) Use of wrong KVL or KVL
cable for ASTRO Digital Spectra
radio.
3) Failure of secure module.
"KEYLOAD"
message
displayed?
Correct
equipment?
Yes
No
With KVL attached to
radio and radio on,
inititate a keyload by
pressing P-T-T on the
keyloader and look for
activity on J801-15.
Activity?
Yes
Verify connection of
RTSIN*/KEYFAIL*
from the universal
connector pin 9
and from J206 to
J801-15.
Verify
connection
across J801.
Good
connection?
Good
connection?
Repair
connection.
Replace
secure module.
Yes
No
No
Yes
Yes
No
˚MAEPF-24413-B