13-6) When Alarm Sound Continues Without Stop - Samsung RB215BSSB Service Manual

Diagnostics

13-6) When Alarm Sound continues without stop

Note
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.
1) If melody sounds continuously
R DOOR SIGNAL MICOM #43
OPEN :0V,CLOSE :5V
F DOOR SIGNAL MICOM #42
OPEN :0V,CLOSE :5V
Start
Is insertion
of MAIN PCB Connector
(CN30)normal?
YES
Does DOOR S/W
come in & out well?
YES
Is DOOR S/W
good in condition?
YES
Are MICOM #43
& #42 "HIGH"(5V)?
YES
Normal
65
NO
Contact trouble of Connector
CN30,Insert it again
NO
Repair DOOR S/W pressing
part
NO
Change DOOR S/W
NO
Check DOOR S/W Circuit,
Change PCB