Samsung RSJ1K Series, Service Manual

Page: 71 / 107

71
TROUBLE SHOOTING
4-2-5) When Alarm Sound continues (Buzzer Sound)
1) When "DingDong" sound continues
Start
Find out any root causes
such as being pushed out
by food, etc and correct it.
Gap exists
Close well
Door is closed
properly or not
Replace Door Magnet
Ass'y
YES
YES
There is no water
penetration intoDoor S/W.
NO
Wire Cut, Defective REED
S/W & Magnet Contact
NO
The MAIN
#31/32/41 input voltage changes
as the door gets
open or closed.
YES
Repair the defective contact
of the connector or insert
the connector properly
NO
The Connector (CN30)
is inserted properly
YES
Replace REED S/W
NO
Door S/W is good.
MAIN PCB & DOOR S/W are good
Remove the Door S/W
and check if it switches
and 0 as the switch
is on and off.
F-Door Sensing MICOM #31
F-Home Bar Door Sensing
MICOM #41
R-Door Sensing MICOM #32
; Correct Voltage Reading
- Open 5V, Close 0V
Start
Cancel Forced Operation
or Forced Defrost, or Re-
plug the unit
YES
NO
2) When "Beeping" sounds continue
Forced Operation or
Forced Defrost is
not selected
MAIN PCB is normal
NO
After being
replugged in, it sends
out the sounds.
YES
Check if there is any foreign substance or
short-out component at MAIN PCB TEST
JUMPER.