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
st
,
then the MINOR.
MAJOR MINOR
ERROR COMMENT
0 1
Processor POST Fail Internal MCU error (PLL, etc)
0 2
Processor Assert Fail Something catastrophic in the
firmware.
0 3
Processor Watchdog Fail Firmware error where
watchdog timeout has not
been attended.
0 4
Power Fail Power Sequencing of the
Power Supply has failed.
1 1
LCD POST Fail Initialization of LCD failed
1 2
LCD Communications Fail MCU unable to communicate
with LCD. Can occur
anytime as opposed to POST
2 1
DSP Boot Fail MCU is unable to boot the
DSP via I2C
2 2
DSP POST Fail MCU was able to boot the
DSP, but not able to
communicate and control.
2 3
DSP Communications Fail Can happen anytime. Would
have been found via Boot or
POST failure if full time I2C
problem
3 1
RUBY POST Fail Unable to communicate with
Ruby on amplifier board
initially.
3 2
RUBY Communications Fail I2C communications failure
for some reason. Not caught
at POST
3 3
RUBY ADC Sensor Fail An illegal ADC value was
encountered by MCA via
Ruby
4 1
MFGTEST Result Byte Failure APM’s MFGTEST byte
indicates test failure or not
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