LG GR-B197WV Service Manual page 41

MICOM CIRCUIT DESCRIPTION
1-10. Key Button Input and Display Lighting Circuit
1. GR-P247, GR-P207, GR-L247, GR-L207
This circuit is to judge the work of function control button on the operation panel and to light each function indication led
(LED module). It is driven by SCAN method.
2. GR-C247, GR-C207, GR-B247, GR-B207, GR-B197
Freezer Refrigerator Crushed
Temp Temp /Water
Control Control /Cube
F5 R5
Max
F4 R4
F3 R3
F2 R2
F1 R1
Min
FRZ REF
TEMP TEMP
Freezer Refrigerator
Temp Temp
Control Control
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R S T
SELECT