65
13-6) When Alarm Sound continues without stop
Diagnostics
1) If melody sounds continuously
1. When Door gets open,Door Open alarm ("Ding Dong")goes off in 2 minutes with Door
opened.When Door remains open after this,the alarm goes off every minute.
2. When Door Switch is not pressed well,MICOM considers it as opened and alarming sound
goes off. Room Lamp becomes OFF in 10 minutes since it detects Door Open.In this case,
even though Door gets opened, Room Lamp does not comes ON.
Note
R DOOR SIGNAL MICOM #43
OPEN :0V,CLOSE :5V
F DOOR SIGNAL MICOM #42
OPEN :0V,CLOSE :5V
NO
NO
NO
NO
Contact trouble of Connector
CN30,Insert it again
Is insertion
of MAIN PCB Connector
(CN30)normal?
Does DOOR S/W
come in & out well?
Is DOOR S/W
good in condition?
Are MICOM #43
& #42 "HIGH"(5V)?
Start
YES
Repair DOOR S/W pressing
part
Change DOOR S/W
YES
Check DOOR S/W Circuit,
Change PCB
YES
Normal
YES
