Power Source Powered, Control Panel On, Fans (27) Stopped; Power Source Powered, Display And Signals Does Not Indicate The Correct Values - Cebora TRI STAR MIG 1635/M Service Manual

CEBORA S.p.A.
♦ Check the wiring between J3 and J7 on control board (29) and J4 power board
(32).
♦ With the power source off, temporarily disconnect the connector J7 on control
board (29) and check the resistance between terminals 3 - 4 of J7 on control board
(29). Corrected value = >Mohm in both measure sense. If short-circuited, replace
control (29) and power (32) boards.
♦ Replace power (32) and control (29) boards.
♦ Replace the control board (29).

3.3.2 - Power source powered, control panel on, fans (27) stopped.

FANS (27) TEST.
Power board (32), connectors J2 and J3, terminals 1(+) - 2(-) = +13 Vdc for the first 5 seconds
approximately (start-up phase); successively +25 Vdc.
♦ Check the wiring between fans (27) and connectors J2 and J3 on power board
(32).
♦ Make sure that there are no mechanical impediments blocking the fans.
♦ Replace the fans (27).
♦ Replace the control board (29).

3.3.3 - Power source powered, display and signals does not indicate the correct values.

ERROR CODE TEST.
Upon start-up, after the lamp-test, display (M) shows "Err" and display (N) a number, to
indicate an error code.
♦ See Error codes and alarm signals, par. 3.4.
INDICATORS TEST.
Upon start-up, after the lamp-test, display (M) indicates the Cebora article number (i.e.:
"283").
After one second, display (M) indicates the version of the programs related to synergic curves
(i.e.: "H01", H = synergic programs table (short), 01 = programs version); display (N)
indicates the version of the "firmware 283 Cebora".
After one second, displays (M and (N) indicate the process setup as they were set before the
last time the unit was shut off.
After two seconds, display (M) indicates the programmed welding current and display (N) the
programmed or actual output voltage.
With the button (V) and knobs (I) and (L) the set-up functions parameters and "Service
Functions" adjustments are possible (see Instructions Manual).
3.302.233
Correct?
NO
Correct?
NO
YES
YES
10
22/09/2008