ELECRAFT KX2 - Error Messages (ERR nnn); Troubleshooting steps

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Error Messages (ERR nnn)
Error messages may be displayed on VFO B at power-up or during normal operation. In many cases error messages
are due to a problem with a single option module or incorrect firmware configuration.
Some error conditions suggest doing an EEINIT if other remedies fail. DO NOT DO AN EEINIT unless
you have consulted Elecraft customer support.
If you see an error message on VFO B (ERR nnn): Write down the error message, as well as any associated
error data shown on the VFO A display (e.g. d=005). Then tap any switch to clear the error code. Multiple errors
may occur; in this case, write down each of the messages and VFO A data, if any, before you clear them.
See Error Message table below for details on specific ERR messages and associated data values, if any.
Error Msg
Problem
Troubleshooting steps
ERR ATC,
ERR ATI
KXAT2 module not accessible:
ATC = I/O expander C
ATI = I/O address mismatch
If the module is not actually installed, set MENU:ATU
MD to NOT INST. If the module is installed, remove it
and re-install it, making sure the 8-pin connector is
correctly lined up with its mating connector on the RF
board.
ERR ATR
KXAT2 relay failure (on VFO
A, d=nnn identifies the failing
relay, e.g. 001 for relay K1)
Turn power off for 10 seconds, then back on. Remove and
re-install the KXAT2 option module, making sure both of
its connectors are correctly lined up with their mating
connectors on the RF board. If this doesn’t correct the
problem, replace the module.
ERR DS1
No DSP SPI command echo
Turn power off for 10 seconds, then back on. Reload
MCU and DSP firmware. If this doesn’t correct the
problem, save your configuration using KX2 Utility, then
consult customer support to see if you should do an
EEINIT (pg. 58). If this corrects the problem, restore your
configuration using KX2 Utility. If error codes persist,
write down all error codes and associated data values
(displayed on VFO A) and contact Elecraft.
ERR DS2
DSP SPI echo not inverted
ERR DSE,
DSX
DSP command timeout.
d=nnn is the last DSP
command sent.
ERR DSP
DSP, CODEC, or ADC power-
up self-test failed
ERR EE1
On-chip EEPROM read/write
The main microcontroller (MCU) may be defective.