ALSA ALSATOM SU 100 MPC - Ricerca Guasti Troubleshooting

ALSATOM SU MPC series – SERVICE MANUAL
- alsa apparecchi medicali s.r.l. -
8
RICERCA GUASTI TROUBLESHOOTING
To monitoring the unit, and make easy troubleshooting, the unit software gives different alarm codes
depending on the failure. So it’s possible to look for it directly on the damaged section or ask for information
to our technical dept. giving the appeared error code.
The unit advises about error codes using different acoustic signals: number of acoustic slow repeated gives
what error occurs. Refers to the following table for the complete list of error codes.
N° repeated
acoustic
alarms
DETECTED ERROR FAILURE PLACED IN
1 Error microcontroller internal RAM Microcontroller board
2 Fail CRC check Microcontroller board
3 Error in system variables Microcontroller board
4 Error in microcontroller low voltage power supply Microcontroller board
5 Activation failure in pedal or manual mode when
the unit is switched on
Main board
6 Error in HF output power Microcontroller board / Main board
7 Wrong operation made by the user (eg. selection
change during activation or wrong mode selector
position)
-
8 Failure in one or both potentiometers Main board
9 Activation time higher than 20 secs -
10 Error in HF modulation signal Microcontroller board
11 Error in HF output current monitoring circuit Main board
12 Error in HF section power supply monitoring
circuit
Main board
13 Error in watchdog timer Microcontroller board
- Neutral plate Main board
- Wrong activation by the user (press cut pedal
with selector mode in bipolar)
-
- Wrong activation by the user (press cut and
coagulation pedals at the same time)
-
NOTE: last three errors have no alarm code because are recoverable failures.
Neutral plate a red light on panel advises about it; in models with displays, unit
shows PPP on CUT display.
“Cross” activation if a conflict exists from user activation and selector mode position.
The unit advises with blinking yellow and blue lights for CUT and
COAGULATION and a intermittent acoustic signal as well. In
models with displays unit shows EEE on CUT display. To solve this
problem, simply stop the activation.
Simultaneous activation as above, when two pedals or two pencil pushbuttons or a
pushbuttons and a pedal are activated at the same time.