CONTROL BOARD (27) POWER SUPPLY TEST.
q Control board (27), connector CN4, terminals 1 and 5 = 380/415/440 Vac, with switch (5)
closed, for machines with this supply voltage.
q Control board (27), connector CN4, terminals 3 and 5 = 220/230/240 Vac, with switch (5)
closed, for machines with this supply voltage.
YES
NO
♦ Check the wiring between terminals 1 and 5 (or 3 and 5) of CN4 on the control
board (27) and switch (5).
♦ Check switch (5), and replace if defective.
♦ Check the mains voltage conditions.
SERVICES POWER SUPPLY TEST.
q Control board (27), connector CN3, terminals 4 (+) and 6 (-) = +12 Vdc, with switch (5)
closed.
YES
NO
♦ Check the status of fuse F1 on control board (27).
♦ Replace control board (27).
♦ Power supply regular, replace lamp (6).