53
B. Keyloading Problems
Use the following procedure to troubleshoot key-
loading problems:
1. Verify that the correct Key Variable Loader (KVL)
is being used for the particular encryption algo-
rithm present in the radio. Refer to the following
chart:
2. Connect the KVL to the radio via the TDN9390A
keyloader cable. Whe the cable is connected to
the radio, the radio should enter the keyloading
mode of operation, and the radio should display
“KEYLOADING” or “KEYLDG” and make a beep
tone.
3. If the radio displays “ERROR 09/10” or “E09/10”
then go to the ERROR 09/10 troubleshooting sec-
tion.
4. If the radio does not go into keyloading mode,
detach and reattach the keyloader cable.
5. If there is still a problem, refer to the universal
connector illustration found in the schematic and
circuit board section of this manual, and short pins
8, 10, and 12 on the universal connector together.
If this causes the radio to go into keyloading
mode, then replace the keyloader cable.
6. If the radio still does not go into keyloading mode,
check the continuity of the the Front Cover/Display
Flex and make sure that the Flex is properly con-
nected to the Universal Connector and to the
Controller Board.
7. If the radio does go into keyloading mode, but
after starting the keyloading process the KVL dis-
play indicates “X FAIL”, then check to see if there
are transitions on pins 13, 15, and 16 of connector
P1 on the Secure Module during a keyload.
8. If there are no transitions on any one of these
lines during a keyload, check the integrity and
continuity of the Expansion Board Connector. If it
is OK, try replacing the Controller Board.
9. If there are transitions on these lines, try replacing
the Secure Module.
10. If the KVL display indicates “X PASS” but you can-
not hear a keyload verification tone, then check
the volume of the radio. If the volume is OK, trou-
bleshoot the receive routing paths in the radio.
IV. SERVICE AID
A cable, Motorola kit number TDN9390A,
connects the MTS 2000 radio universal connector to
the keyloader.
V. RETROFIT INSTRUCTIONS
A. General
This section gives instructions on retrofitting a
secure module into a secure-capable MTS 2000 radio.
The following paragraphs give directions on how to
physically install the secure module, how to enable the
secure options by updating the codeplug, and how to
tune the radio for optimum secure performance.
B. Physical Retrofit of Secure Module
The radio must be partially disassembled to install
the secure module.
Follow the disassembly procedures in section VI,
located toward the front of this manual. Proceed
through paragraph B (Disassembly to Board Level) step
8, where the front cover has been removed and the
controls flex has been disconnected from the controller
board.
Continue through step 9a, to loosen the front
shield. Do not completely remove the front shield.
Simply raise the lower portion of the shield while the
opposite end is still connected to the top of the radio.
With the front shield raised, observe the controller
board which takes up the bottom third of the radio. On
the lower right corner of the controller board is an
empty female connector, which will be used to mate the
controller board to the secure module. Place the secure
module (component side toward controller board) over
the controller board with the secure module's male con-
nector placed above and aligned to the female
connector on the controller board. Interlock the connec-
tors by pressing down on the back of the the secure
module. The secure module has now been installed.
Reassemble the radio according to the reassembly
instructions in section VI, located toward the front of
this manual. Begin with paragraph E, step 5b.
C. Update Codeplug Through RSS
1. General
Once the secure module is installed, the radio's
codeplug must be reprogrammed so that the new
hardware can be used. There will also be some
secure options that the user may or may not want
to activate. Table 3, at the end of this appendix,
gives a quick reference to several properties and a
Secure Module Kit KVL Kit Description
NTN7279A T3011_X DES
NTN7280A T3011_X DES-XL
NTN7281A T3010_X DVP
NTN7282A T3014_X DVP-XL
NTN7283A T3012_X DVI-XL
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