Troubleshooting; The Power Source Does Not Start, Control Panel Off - Cebora POWER PLASMA 3100 Service Manual

CEBORA S.p.A.

3.3 - Troubleshooting.

ANY INTERNAL INSPECTIONS OR REPAIRS MUST BE CARRIED OUT BY QUALIFIED
BEFORE REMOVING THE PROTECTIVE GUARDS AND ACCESSING INTERNAL
PARTS, DISCONNECT THE POWER SOURCE FROM THE MAINS AND WAIT FOR THE
INTERNAL CAPACITORS TO DISCHARGE (6 MINUTES).
Items in boldface describe problems that may occur on the machine (symptoms).
Operations preceded by this symbol refer to situations the operator must determine (causes).
q
♦ Operations preceded by this symbol refer to actions the operator must perform in order to
solve the problems (solutions).

3.3.1 - The power source does not start, control panel off.

MAINS SUITABILITY TEST.
Missing voltage at the power source input due to tripped mains protection.
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♦ Eliminate any short-circuits on the connections between power cable, switch (9)
and filter board (36).
♦ Make sure that the terminals IN1 and IN2 on filter board (36) are not short-
circuited between them or towards earth. If short-circuited, disconnect the
terminals OUT1 and OUT2 from the filter board (36) and repeat the checks on
terminals P1 and P2 of power board (35). If the short-circuit is still present replace
power board (35), if the short-circuit has been removed, replace filter board (36).
♦ Check the insulation towards earth of the choke (17). If leaking or short-circuited
towards earth, replace it.
♦ Mains not suitable to power the power source (ex.: insufficient installed power).
POWER BOARD (35) POWER SUPPLY TEST.
Power board (35), terminals P1and P2 = 115 or 230 Vac, with switch (9) closed.
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♦ Check the wiring between P1 and P2 on power board (35) with OUT1 and OUT2
on filter board (36).
♦ Check power cable and plug and replace if necessary.
♦ Check switch (9), and replace if defective.
♦ Make sure that the voltage on terminals IN1 and IN2 of filter board (36) = 115 or
230 Vac, with switch (9) closed. If correct, replace the filter board (36). If
incorrect, make sure that the choke (17) is intact and check its connections to the
3.302.089
WARNINGS
PERSONNEL.
NOTE
Correct?
NO
Correct?
YES
YES
NO
9
31/05/02