LG GC-B207GLQV Service Manual page 48

Does the cold-air come out of
the top of the main duct?
Yes
Enter the TEST 1 MODE
Does not cold-air come
out of the top of the main
duct?
No
Checking Damper itself
Is the resistance
Values between (1) & (4),
(2) & (3) like as below?
(4)YL (2)WH
(1)RD (3)BL
Resistance of Damper
Test Point
(1) To (4)
369 ~ 451 Ω
(2) To (3)
369 ~ 451 Ω
Yes
Check the
No
Damper
itself
Check the
Yes
Damper
itself
No
Result
After reset the unit, take steps to PCB as
follows for temperature compensation.
1. replacing RCR1
RCR1
8.2 ㏀
5.6 ㏀
3.3 ㏀
2.0 ㏀
470 Ω
2. Compensate with Jump wire cutting
Replace
Damper
JUMP
Cutting both jumpers affords a
2º compensation
- 48-
Temp.
Compassion
0 deg
10 ㏀
- 0.5 deg
- 1.0 deg
-1.5 deg
- 2.0 deg
- 2.5 deg
Temp.
WIRE Compassion
JCR3
-1.0 deg
JCR4
-1.0 deg
Remark
Current
Cold