4-30
Err
Code
Description
Possible Cause
Things to Check
Correction
237
POST memory
failure.
Errors found in micropro-
cessor memories during
power initialization.
Cycle system power and deter-
mine if this error is repeated.
Replace the
Controller assembly.
239
RF Controller
rejected a calibra-
tion value
Calibration failed for one or
more modes.
Confirm proper load resistor and
power measurement.
Configure system for test mode
operation.
Check for proper HVPS output
voltage while activated in test
mode.
Check for proper RF output
power while activated in test
mode.
Cycle system power and deter-
mine if this error is repeated.
Repair or Replace
the HVPS.
Repair or Replace
the RF Amplifier.
Repair or Replace
the RF Transformer
board.
Repair or Replace
the RF output
board.
Replace the
Controller assembly.
311
POST Monitor
memory failure.
Errors found in Monitor
microprocessor memory
during power initialization.
Cycle system power and deter-
mine if this error is repeated.
Replace the
Controller assembly.
314
POST Monitor or
RF controller clock
failure
RF Controller or Monitor
clock oscillator failure
detected during POST.
Check for 10 MHz clock fre-
quency input to RF Controller
and Monitor processors.
Verify that the ribbon cable con-
nector, J1, is properly connected
to the Transformer Assembly,
A7.
Replace the control-
ler assembly.
315
POST Monitor
activation circuitry
failure
The states of the activation
request signals detected by
the Monitor do not match
the states detected by the
System Controller.
Check for active high activation
request on lines running to the
Monitor.
Replace the control-
ler assembly.
320
Monitor failed pro-
gram CRC test
Errors found in software
downloaded from the
System Controller to the
Monitor during initializa-
tion.
Cycle system power and deter-
mine if this error is repeated.
Replace the
Controller assembly.
321
Monitor failed cali-
bration data CRC
test
Monitor calibration data is
corrupted.
Recalibrate all system modes.
Replace the
Controller assembly.
322
Monitor or RF
controller did not
return to IDLE
state
Activation continues after
activation command ceases.
Cycle system power and deter-
mine if this error is repeated.
Replace the
Controller assembly.