Samsung R1031GWS YLR Service Manual page 20

8-2-5. Driving Part Checking
◆ Confirm The Output Of DC5V, When The Every Part Of Micom Number Check,
According To The Some Problem Condition
ex) When The Drain Is Not Operating But Pump Motor Is Operating, Check
The 5Voltage Of Micom
Micom Number, 9 Is
5Voltage?
The Part Of ⓐ Is
0 Voltage?
Check R38, TRIAC2
※ Check The Micom 12th In The Above Method When The Cold Water Is Bad
YES
YES
+12V
TRIAC2
TRIAC4
TRIAC5
TRIAC3
NO
NO
IC65003
ⓐ
R26
ⓐ
R43
ⓐ
R47
R30
ⓐ
19
Micom Bad
Check The IC 65003
MICOM
POWER
1
DOOR
7
COLD
12
PRE
2
PUMP
9