Tuttnauer 3850 ELVG-D, Руководство техника

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8
6 TROUBLESHOOTING
a) At the customer’s location, avoid replacing any component, which is not
connected to a socket or to a flat cable. If necessary, replace the complete
board or box. If problem persists service the autoclave at the service lab.
b) Whenever the AJUNC3 board of the complete electrical assembly
(CB90030) is replaced without replacing the pressure transducer, or after
replacing the pressure transducer, the pressure must be re-calibrated.
c) When working with the autoclave, DISCONNECT the power cord from the
socket or turn the circuit breaker OFF.
6.1 Turning on the system, no response
a) Check the voltage at the terminal (is the power cord damaged?
change the power cord if necessary.
b) Check the flat cable connecting the PREDG and the AJUNC3,
replace it if necessary.
c) Check the circuit breaker, if it is off, turn it on.
d) Check the cut - off position pushes it in and turn it on.
e) Check the power supply input fuse and replace the fuse if
necessary.
If the network input is o.k., the problem must be with one of the
elements along the line, the power supply, the PREDG or AJUNC
boards and the elements they are connected to.
f) Check the voltages by means of connecting the Test board to JP14
on the AJUNC 3 board as detailed in the voltage checking
procedure.
6.1.1 If there is no 12V nor 5V
a) Does the power supply receive the network voltage?
b) Is the power supply output OK? Disconnect the
connector to JP3 (AJUNC3 board) and check for
voltage on the female connector no. 12V at the female
connector indicates a faulty power supply that should be
replaced. At the client’s location replace the whole
electrical box (C B 90030). 12V at that location
indicates that the power supply is functioning and that
the problem is somewhere else.
c) Check the AJUNC3 board. Disconnect the fan (JP5), the
valves (JP2) and the printer (if present). If disconnecting
any of these elements brings up the voltage, that
element is damaged and has to be replaced.
d) Disconnect the PREDG board and the printer from the
AJUNC 3 board. If any of these elements are faulty, 5V
appears as it is disconnected. If there is still no 5V, the
power supply is damaged.
6.2 System is ON - display is lit
If the other LEDS are functioning the display is most likely damaged.
Replace the PREDG board.