RF board may be disconnected
from Control Panel board
Follow steps for ERR IOA.
RF board relay failure (on VFO
A, d=nnn identifies the failing
relay, e.g. 001 for relay K1)
Follow steps for ERR IOA.
Transmit power MOSFET Q6
or Q7 bias out of range
Follow steps for ERR IOA.
Transmit gain constant out of
range
If this only occurs on one or two bands, there could be a
problem with a band-pass or low-pass filter. Also try re-
doing Transmit Gain calibration (pg. 39). If this doesn’t
correct the problem, reload a known-good Configuration
file using the latest version of the KX2 Utility. Customer
support can supply the original Configuration file if you
didn’t save one when you first received your KX2.
Transmit attempt without first
calibrating TX BIAS in CW
(TXC) or SSB (TXS) mode
Perform Transmit Bias calibration (pg. 39). This is a
fully-automated procedure that requires no test equipment.
Transmit attempt without first
nulling the carrier on present
band
Reload a known-good Configuration file using the latest
version of the KX2 Utility. Customer support can supply
the original Configuration file if you did not save a
Configuration file when you first received your KX2.
Transmit attempt without first
nulling the opposite sideband
on present band
Transmit attempt without first
calibrating gain on present band
Follow steps for ERR TXC.
Power amplifier temperature
sensor out of range
Follow steps for ERR IOA.
VOX activation detected at
power-on
Usually caused by audio at the mic at power-on, with
VOX enabled for voice modes. Turn power off, then
disconnect the mic. Turn power back on. Turn voice-mode
VOX off or reduce VOX gain.