Mains Connection Test - Cebora 337 Manual De Servicio

CEBORA S.p.A.

MAINS CONNECTION TEST

With the switch (10) on filter board (7) off, approximately 220 or 400 VAC is

measured between terminals FS1, FS2 and FS3, depending on mains voltage.
Perform:
SERVICE no.1 POWER SUPPLY TEST
SERVICE no.1 POWER SUPPLY TEST
Power board (48), connector J19, terminals 1 - 5 = approximately 22 VAC.
q
Perform:
SERVICE no.2 POWER SUPPLY TEST
SERVICE no.2 POWER SUPPLY TEST
Control board (48), test point TP5 with respect to test point TP4 = + 12.5 VDC,
approximately.
Perform:
SERVICE no.3 POWER SUPPLY TEST
3302336-B
YES
Correct?
Check the power cable and plug; replace if
necessary.
Check the switch (10); replace if defective.
Check the mains voltage conditions, and
especially that none of the three power supply
phases is missing. The service transformer (5)
is powered between two mains phases.
Replace the filter board (7).
YES
Correct?
Check the FUSE on the services board (6): if
blown, replace the fuse with one of exactly the
same specifications; make sure that the
service transformer (5) is intact; replace if
damaged.
YES
Correct?
Check the FUSE on the services board (6): if
blown, replace the fuse with one of exactly the
same specifications; make sure that the
service transformer (5) is intact; replace if
damaged.
NO
NO
NO
53
20/12/2019