Tuttnauer 2540 EHS, Technician Manual

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81
Corrections
—
Repair or replace the
faulty item.
1.5
—
Tighten loose screws.
—
Reconnect
grounding
cable.
Possible cause check-up and tests
—
Turn the power back on and check for 5V and 12V on the Test Point board, if voltages are okay, then one connector at a time reconnect the connector and test the voltage. Each time turning the power off before reconnecting.
—
If a cable or connector causes a problem, but the cable or connector are, good then proceed down the line to the device attached to the other end of the cable or connector and continue with the previous step. The problem could be with any one of the external devices connected to the system (valves, sensors, etc.) or another electronic board.
1.5
Check the grounding
—
Connect the negative probe of the multimeter to TP1 on the Test Point board.
—
Using the positive probe check the voltage at various grounding points on the autoclave, on the ANL-T2 and DIG- T2 boards, on the enclosure of the electric box and the main grounding screw of the machine.
10. TROUBLESHOOTING (cont.)
10.3 Pre-process malfunction
(cont.)
Symptom
1. (cont.)