4/18/11
888-2587-001
6-3
WARNING: Disconnect primary power prior to servicing.
Section 6 Troubleshooting
FM HD Radio System
PA TEMP:
90°C threshold exceeded - Fault off.
PA CURR:
6.4A threshold exceeded - Fault off.
PA OVER V:
28.8V (120% Nominal voltage) Threshold exceeded - Fault off.
PA UNDER V:
19.2V (80% Nominal voltage) Threshold exceeded - Fault off.
6.2.1.2
Other Faults for the Boost Pro
FAN TACH:
FAN tachometer indicates a low speed, or no operation fan condition -
Fault off.
APC UNLOCK:
The difference between the power sense and the ALC reference is
greater than 50 counts, lasting for more than 2 - 5 seconds - Fault off.
24V, 15V, 12V, -15V, -12V, 8V, 5V, 3V (Low Voltage Power Supplies):
All on-board
low voltage supplies thresholds are +/-20% - Warning only.
VSWR FOLDBACK:
Indication of a foldback condition, where the threshold levels
are based on the TX type and modulation defined in the master configuration file. The
foldback circuit will cancel the foldback state, and automatically restore power to the
previous level, once the condition causing the high VSWR stops.
PA TEMP WARN:
84° C threshold exceeded - Warning only.
EEPROM:
Data CRC error.
CPLD:
Cannot communicate with CPLD.
BIT DIGITAL:
At least one digital I/O has failed.
BIT ANALOG:
At least one analog I/O has failed.
