LG LTNS16121V /00 Service Manual page 51

- LED is not working (Multiduct)
No Checking
Check the R-LED when the door is open.
7
Is the R-LED turn on?
Check the R-LED. When the door is open,
8
the voltage value for R-LED is 12 V?
CON101
Door
CON101
er ro
1 ~ 3 Open
er ro
1 ~ 3 Closed
Check the voltage of door switch PCB. While
9
the door is closed, is the voltage value of 0V
for CON8 (11th~12th)?
CON8
Refrigerador LED lamp
(11th~12th)
Check the voltage of door switch PCB.
10
While the door is open, is the voltage value
between 10 & 12V for CON8 (11th~12th)?
CON8
Refrigerador LED lamp
(11th~12th)
Voltage [ V ]
12V
0V
CON8
Voltage [ V ]
Closed 0V
CON8
Voltage [ V ]
Closed 12V
Result and SVC countermeasure
Result
Yes
No
Result
Yes Change LED from refrigerator
No
Result
Yes
No
Result
Yes Explain to customer. Product is normal
No
51
SVC Support
Explain to customer
Go to step 8
SVC Support
Go to step 9
SVC Support
Go to step 10
Replace PCB
SVC Support
Replace PCB