In Case Of R-Fan Doesn’t Run (Run The Dc Voltage) - Samsung SR-61KTC Service Manual

② In case of R-fan doesn't run (Run the DC voltage)
(Reference BLDC MOTOR run circuit)
Check IC 06 KA324 Change MAin PCB
START
Is it forced operation?
Y
Does it run lmin after the door
S/W pressed?
N
Is confivcate AC 220V of the MAIN
PCB connection CN72 PIN 1.3?
Y
Does the door
S/W works norks nomally
Y
Is 5V vltg MAIN PCB MICOM
PIN27?
N
Has vltg the MAIN PCB
connection CN70 pin 2?
(12V or 9V)
Y
Has wave the MAIN PCB
connection CN70 pin5?
Y
N
Y
N
N
Y
N
N
－44－
Forced operation
F-FAN O.K
Re-connection CON72
Check wire
Change DOOR S/W
Change MAIN PCB
Check CON70 Connection
Check the MOTOR
Check MOTOR Change
MOTOR