Cebora 965, Service Manual, Page: 10 / 24

CEBORA S.p.A.
10
3.3.3 - The start button produces no effect.
START COMMAND TEST.
Correct?
‰
Control board (6), connector J3, terminals 1 and 2 = approximately 24 Vac, with start button
on torch released; approximately 0 Vac, (contact closed) with button pressed.
YES
NO
♦
Check the wiring between J3 of control board (6) and J2 HF-filter board (47), and
between J1 HF-filter board (47), torch cable, torch button and contact of the
nozzle guard on the torch.
♦
Make sure connection between J1 and J2 on HF-filter board (47).
♦
Make sure the insulation between torch start button cables and electrode and
nozzle cables on the torch cable. If insulation is reduced replace the torch
complete. An eventual insulation loss between conductors may damage control
(6) and HF-filter (47) boards.
♦
Perform CONTROL BOARD (6) POWER SUPPLY TEST, par. 3.3.1.
♦
Replace control board (6).
♦
Perform CONTROL BOARD (6) POWER SUPPLY TEST, par. 3.3.1.
♦
Replace control board (6).
3.302.173 28/07/04