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DISPLAY SHOWS
ITEM
Spectra
AA
FL 05/81
AB
AC
AD
FL 05/88
AE
Table 11B. SECURENET–Capable Radio Troubleshooting Display Codes
DISPLAY SHOWS
ITEM
Spectra
BA
DISPLAY SHOWS
ITEM
Spectra
CA
CB
CC
DISPLAY SHOWS
ITEM
Spectra
DA
II. SYSTEM SELF-CHECK
When the radio system is turned on it displays
"SELF CHECK." During this time, each processor does
a diagnostic check. This includes checking ROM, RAM,
EEPROMs, and serial bus circuitry. If no errors are
detected, the display shows the selected mode. If there
are any errors, they are displayed for two seconds each,
after the "SELF CHECK" display.
The error code is divided into two parts, separated
by a "/." The first part indicates the location of the error.
The second part indicates the type of error. While the
problem is not necessarily located on the board indicat-
ed by the location code, the troubleshooting guide for
that board should be used to initially locate the problem.
See Table 11A for interpretation of these codes for a
Spectra and Spectra 9000 control heads.
There are two types of errors. The first type does
not stop the system from operating. This error occurs if
an option board in not communicating on the serial bus.
Table 11A. Control Unit Troubleshooting Display Codes
Spectra 9000
Control head ROM defective (replace control head board).
FAIL 05/82
Control unit EEPROM corrupted. See control unit troubleshooting in this manual.
FAIL 05/84
Control unit EEPROM blank. See control unit troubleshooting in this manual.
Control head RAM defective (replace control head board).
FAIL 05/90
Control unit serial bus failure. See control unit troubleshooting in this manual.
Spectra 9000
FAIL 09/90
Option serial bus failure. See the appropriate SECURENET instruction manual.
ERROR 09/10
Table 11C. Trunking System Troubleshooting Display Codes
Spectra 9000
FAIL 10/82
Option EEPROM corrupted. See the trunking troubleshooting chart in this manual.
ERROR 10/02
FAIL 10/84
Option EEPROM blank. See the trunking troubleshooting chart in this manual.
FAIL 10/10
Option serial bus failure. See the trunking troubleshooting chart in this manual.
Table 11D. Siren/PA Troubleshooting Display Codes
Spectra 9000
FAIL 08/10
Option serial bus failure. See the Spectra 9000 siren/PA option instruction manual.
DESCRIPTION OF PROBLEM
DESCRIPTION OF PROBLEM
DESCRIPTION OF PROBLEM
DESCRIPTION OF PROBLEM
In this case, the display indicates "ERROR__/__." This
specifies the error. When this display appears, the oper-
ator is alerted by a beep. The system continues to
operate without the option.
The second type of error inhibits the operation of
the system. This occurs if the radio's EEPROM is cor-
rupted. Since the data needed to operate the radio is
stored in the EEPROM (frequencies and PL codes), the
system cannot work if that data is invalid. This type of
error is indicated by a display of "FAIL__/__." If there is
a single error of this type, the display shows it indefinite-
ly. If there are multiple errors, and one of this type, each
error display is shown for two seconds and the display
cycles through them.
A special case exists for error "ERROR 01/90."
This error indicates that the control unit did not receive a
message from the radio. If this error occurs, the control
unit resets the system, after all the error displays are
shown, in an effort to correct the failure.
35
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Troubleshooting
