LG GA-B409U*QA Service Manual page 27

• TEMPERATURE COMPENSATION OF FREEZER ROOM
Revi s ed resi s tance
470 Ω
Present resi s tance
470 Ω
COMPENS A T E
2k Ω
3.3k Ω
5.6k Ω
8.2k Ω
FREEZER
10k Ω
ROOM
(R1)
12k Ω
18k Ω
33k Ω
56k Ω
180k Ω 10 ° C ↓
• This circuit is aimed to input the necessary temperature compen sation values into the MICOM in order to adjust the freezer tem p erature
which is different in each model.
2k Ω 3.3k Ω
NO T
1 ° C ↑ 2 ° C ↑
NO T
1 ° C ↓ 1 ° C ↑
COMPENS A T E
NO T
2 ° C ↓ 1 ° C ↓
COMPENS A T E
3 ° C ↓ 2 ° C ↓ 1 ° C ↓
4 ° C ↓ 3 ° C ↓ 2 ° C ↓
5 ° C ↓ 4 ° C ↓ 3 ° C ↓
6 ° C ↓ 5 ° C ↓ 4 ° C ↓
7 ° C ↓ 6 ° C ↓ 5 ° C ↓
8 ° C ↓ 7 ° C ↓ 6 ° C ↓
9 ° C ↓ 8 ° C ↓ 7 ° C ↓
9 ° C ↓ 8 ° C ↓
5.6k Ω 8.2k Ω 10k Ω
3 ° C ↑ 4 ° C ↑ 5 ° C ↑
2 ° C ↑ 3 ° C ↑ 4 ° C ↑
1 ° C ↑ 2 ° C ↑ 3 ° C ↑
NO T
1 ° C ↑ 2 ° C ↑
COMPENS A T E
NO T
1 ° C ↓ 1 ° C ↑
COMPENS A T E
NO T
2 ° C ↓ 1 ° C ↓
COMPENS A T E
3 ° C ↓ 2 ° C ↓ 1 ° C ↓
4 ° C ↓ 3 ° C ↓ 2 ° C ↓
5 ° C ↓ 4 ° C ↓ 3 ° C ↓
6 ° C ↓ 5 ° C ↓ 4 ° C ↓
7 ° C ↓ 6 ° C ↓ 5 ° C ↓
- -
27
12k Ω 18k Ω 33k Ω
6 ° C ↑ 7 ° C ↑ 8 ° C ↑
5 ° C ↑ 6 ° C ↑ 7 ° C ↑
4 ° C ↑ 5 ° C ↑ 6 ° C ↑
3 ° C ↑ 4 ° C ↑ 5 ° C ↑
2 ° C ↑ 3 ° C ↑ 4 ° C ↑
1 ° C ↑ 2 ° C ↑ 3 ° C ↑
NO T
1 ° C ↑ 2 ° C ↑
COMPENS A T E
NO T
1 ° C ↓ 1 ° C ↑
COMPENS A T E
NO T
2 ° C ↓ 1 ° C ↓
COMPENS A T E
3 ° C ↓ 2 ° C ↓ 1 ° C ↓
4 ° C ↓ 3 ° C ↓ 2 ° C ↓
56k Ω 180k Ω
9 ° C ↑ 10 ° C ↑
8 ° C ↑ 9 ° C ↑
7 ° C ↑ 8 ° C ↑
6 ° C ↑ 7 ° C ↑
5 ° C ↑ 6 ° C ↑
4 ° C ↑ 5 ° C ↑
3 ° C ↑ 4 ° C ↑
2 ° C ↑ 3 ° C ↑
1 ° C ↑ 2 ° C ↑
NO T
1 ° C ↑
COMPENS A T E
NO T
1 ° C ↓
COMPENS A T E