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4. Troubleshooting
4-1 Failure Display Codes
Failure code
CAUSE
SOLUTION
-SE-
short key
When 10 seconds elapses, It will display
“-SE-” after buzzer is beeping 10 times long
if between main PCB and cable connector or
keypad and cable have a short circuit .
Please make sure through the method of
4-1 on 30 page if those series of working
for informing error take long time or not
functioned .
Key
Connector
(CN07)
Key
Connector
(CN05)
Control PCB
Control PCB
Main PCB (Back)
Main PCB (Back)
- SE -
*Disconnect power.
*Take out keypad from the main PCB.
*Check whether between connector(CN05)
pin and pin on main PCB have a short
circuit.
*Make sure whether between keypad
have a short circuit.
Yes
Yes
No
No
* Repair the area of circuit
having short between
connector(CN05) pins on
main PCB.
* Repair after confirming
whether pattern is between
micom and connector have
a short circuit or get damaged.
* Replace or repair keypad
END
END
END
