Error Codes - Crown XLS1000 Service Manual

ERROR CODES:

The amplifier's processor runs through a series of Power On Self Tests (POST) when
the amplifier is first powered up. If the processor encounters an error, it will
communicate the error via the front panel Thermal LED's.
These error codes are unique and based upon a Major and Minor element. The Major
element is determined by which portion of the amplifier failed POST, while the
Minor portion is which part of the Major element failed. They are displayed by CH1
Thermal LED = MAJOR, CH2 Thermal LED = MINOR. The MAJOR is blinked 1
then the MINOR.
MAJOR MINOR
0 1
0 2
0 3
0 4
1 1
1 2
2 1
2 2
2 3
3 1
3 2
3 3
4 1
ERROR
Processor POST Fail
Processor Assert Fail
Processor Watchdog Fail
Power Fail
LCD POST Fail
LCD Communications Fail
DSP Boot Fail
DSP POST Fail
DSP Communications Fail
RUBY POST Fail
RUBY Communications Fail
RUBY ADC Sensor Fail
MFGTEST Result Byte Failure
COMMENT
Internal MCU error (PLL, etc)
Something catastrophic in the
firmware.
Firmware error where
watchdog timeout has not
been attended.
Power Sequencing of the
Power Supply has failed.
Initialization of LCD failed
MCU unable to communicate
with LCD. Can occur
anytime as opposed to POST
MCU is unable to boot the
DSP via I2C
MCU was able to boot the
DSP, but not able to
communicate and control.
Can happen anytime. Would
have been found via Boot or
POST failure if full time I2C
problem
Unable to communicate with
Ruby on amplifier board
initially.
I2C communications failure
for some reason. Not caught
at POST
An illegal ADC value was
encountered by MCA via
Ruby
APM's MFGTEST byte
indicates test failure or not
st
,