1 maintenance, 2 amplifier faults, 1 table of fault led conditions – CONTREX CXB2040 User Manual
Page 40
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CHAPTER SEVEN: MAINTENANCE, REPAIR, and WARRANTY
7.1 MAINTENANCE:
Contrex amplifiers do not require any scheduled maintenance, although it is a good idea to
occasionally check for dust build-up or other contamination.
7.2 AMPLIFIER FAULTS:
If an amplifier should cease to operate and one or more of the fault LED's are lit, review the sections
which follow on the fault in question for information and possible causes.
A FAULT CAN ONLY BE CAUSED BY ABNORMAL CONDITIONS. LOCATE AND
CORRECT THE CAUSE OF THE FAULT BEFORE REPEATED RECYCLING OF POWER TO
THE AMPLIFIER TO PREVENT POSSIBLE DAMAGE.
7.2.1 Table of Fault LED Conditions:
INPUT OR FAULT
CONDITION
RUN
LED
HS/ECB
LED
LS/ECB
LED
OVER VOLT
LED
OVER TEMP
LED
FAULT
OUTPUT
NORMAL
OPERATION
ON
OFF
OFF
OFF
OFF
NO
LIMIT + (ON)
ON
OFF
OFF
OFF
OFF
NO
LIMIT - (ON)
ON
OFF
OFF
OFF
OFF
NO
INHIBIT (ON)
OFF
ON
OFF
OFF
OFF
NO
RESET IN (ON)
OFF
OFF
OFF
OFF
OFF
NO
EXT. FAULT (ON)
OFF
OFF
OFF
OFF
OFF
YES
UNDER-VOLTAGE
(+15V)
OFF
OFF
OFF
OFF
OFF
YES
HS/ECB (LATCHED)
OFF
ON
OFF
OFF
OFF
YES
LS/ECB (LATCHED)
OFF
OFF
ON
OFF
OFF
YES
OVER-VOLTAGE B+
(LATCHED)
OFF
OFF
OFF
ON
OFF
YES
OVER TEMP
(LATCHED)
OFF
OFF
OFF
OFF
ON
YES
CHAPTER 7: MAINTENANCE, REPAIR, and WARRANTY