4-26
Err
Code
Description Probable Cause Things to check Correction
388 POST monitor
timed out- did
not respond to a
POST command
Reset machine and if error
repeats, then replace Control/
Display Board
Cycle system power and deter-
mine if this error is repeated.
Replace the Control/
Display Board.
389 Dial setting over
maximum limit
The front panel power setting
exceeds the limit for the selected
mode.
Cycle system power and deter-
mine if this error is repeated.
Replace the Control/
Display Board.
391 Monitor detect-
ed the wrong RF
waveform
The Monitor has detected an
improper RF Amplifier drive
waveform or frequency for the
selected mode.
Cycle system power and deter-
mine if this error is repeated.
Replace the Control/
Display Board.
395 Maximum peak
voltage was
exceeded for a
given mode.
Disconnected wire terminal or
bad A/D converter.
Check for loose wires on the
Power board T3.Cycle system
power. Test each mode open
circuit at maximum power and
determine if this error is repeat-
ed.
Replace the Control/
Display Board.
Replace the Power
Board.
396 The monopolar-
bipolar selection
relay is stuck in
the bipolar posi-
tion.
TBD
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