ConMed System 2450 - Page 35

4-25
Err
Code
Description Possible Cause Things to check Correction
379 RF calibration
failed POST
System calibration required on
one or more modes.
Recalibrate the system. Configure
the system for test mode opera-
tion and cycle power. Measure
the actual power into a fixed
load. If power is correct, verify
proper operation of the Monitor
voltage and current sensing
circuits. If power is correct,
verify proper operation of the RF
Controller voltage and current
sensing circuits, the HVPS, and
the RF Amplifier.
Replace the Control/
Display Board if
the system will not
calibrate.
381 No tone feed-
back during
POST
The Monitor did not detect
tones during POST. This
typically occurs because of a
problem in the tone generation
circuitry.
Listen for tones during POST.
Verify that all internal cables are
properly connected. Increase
the tone volume by adjusting
the Volume Control on the con-
trol panel. Cycle system power
and determine if this error is
repeated. Configure system for
test mode operation. Check
the tone drive signal from the
Control/Display Board while the
unit is activated. Lack of a signal
indicates a problem with the
Control/Display Board. Check
for a proper TONE_ MON sig-
nal to the controller. Lack of a
signal indicates a problem with
the Power Board assembly.
Replace the Control/
Display Board.
Repair or replace the
Back Panel assembly.
382 Activation with-
out a tone
The Monitor did not detect a
tone during activation. This
typically occurs because of a
problem in the tone generation
circuitry.
Listen for a tone during acti-
vation. Verify that all internal
cables are properly connected.
Increase the tone volume by
adjusting the Volume Control on
the control panel. Cycle system
power and determine if this error
is repeated. Configure system
for test mode operation. Check
the tone drive signal from the
Control/Display Board while the
unit is activated. Lack of a signal
indicates a problem with the
Control/Display Board. Check
for a proper TONE_ MON sig-
nal to the controller. Lack of a
signal indicates a problem with
the Power Board.
Replace the Control/
Display Board.
Repair or replace
the Power Board.
383 RF Current
sensed at an
unselected out-
put.
The Monitor has sensed cur-
rent flowing at an output that
has not been selected. This may
indicate a faulty or stuck output
relay.
Arrange the system with fixed
loads connected to all outputs.
Activate each output in turn
while monitoring all outputs for
current.
Replace or repair the
Output assembly.
Replace the Control/
Display Board.