In Operating Stop[(Closing The Door) - Samsung APH180HD Service Manual

2 In operating stop[(closing the door)

P ress the stop key.
Is the voltage across the re l a y ( RY82) coil approximately 12V?
(Check while the door is being closed.)
While checking the micom pin 11 output wave, is it high?
(Check while the door is being closed.)
While checking the IC03 pin 11 output wave, is it low?
(Check while the door is being closed.)
Is the voltage across the door motor(CN72 #1, #5) 187V~253V?
(Check while the door is being closed.)
Check the door motor and replace it.
• The door motor is operated by the start/stop key only and when the start/stop signal is given, the
function of opening or clossing door is detected by the photo sensor installed at the shutter PCB.
• If the door open is not operate in 20 seconds after input of start/stop key, "E2" error mode occurs.
Samsung Electronics
Y
Y
Y
N
Check the relay and replace it.
N
Check MICOM(IC01) and replace it.
N
Check IC03 and replace it.
N Check the relay and connection wire harn e s s
d i s c o n n e c t i o n .
Troubleshooting
5-11