ConMed ExcaliburPLUS PC - Page 97

ER
Err CODES
21.0
22.0
22.1
22.2
23.0
23.1
23.2
24.1
MEANING
ARM voltage less than or
equal to 0.4V.
Base Voltage drive (VBASE) is too
low during Power On Self Test.
Base Voltage drive (VBASE) is too
high during Power On Self Test.
Base Voltage drive (VBASE) too high in
Run Mode.
Waveform too low during Power on
self tests.
Waveform too high during Power on
self tests.
Waveform too high in Run Mode.
Tone detector can't disable RE
POSSIBLE CAUSES
-Faulty A5Q2 or Q3.
-A3U21 or VR2 faulty.
-Bent pin on ribbon cable.
-Shorted bypass cap on VARM line.
-Shorted VARM sense line.
-Shorted A5T4.
“Test jumper A3TP3 to A3TP22 is still
installed. (Remove it.)
-Faulty A8Q1 or connections.
-+5V Over Voltage Shutdown Circuit
malfunction.
-Base voltage Check circuitry (A3R64, R63,
C69, U26B) failure.
-Any failure in the VBASE circuitry.
-A801 shorted to supply.
-Base voltage Check circuitry (A3R64, R63,
C69, U26B) failure.
-Any failure in the VBASE circuitry.
-Unit calibrated without load or too high a
load Recalibrate with rated load connected
to unit.
-A801 shorted to supply.
-Base voltage Check circuitry (A3R64, R63,
C69,
U26B) failure.
-Any failure in VBASE circuitry.
Waveform detection circuitry (A3U27A,
R66, R65, C70, U26C) malfunction.
-Ripple on +12V supply.
Tone detector or tone generator circuitry
failure keeping waveform drive off.
-Waveform detection circuitry (A3U27A,
R66, R65, C70, U26C) malfunction.
-Ripple on +12V supply.
-Waveform detection circuitry (A3U27A,
R66, R65, C70, U26C) malfunction.
-Ripple on +12V supply.
-Stuck address lines to A3U10 orU17.
- Failure in tone detect circuitry ( A3U26D,
C71, D11, D12, R68, R69, R70, R22
prevents TONEDET from pulling low
during power on self test.
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