LG LFC23760ST - Power Circuit

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8-2-1 Power Circuit
8-2-2 Load and Door Light Circuit (HV)
1. Load Drive Condition Check
To measure outputs of the control board, check voltages between the pins for the following components:
(Refer to Fig. 1).
Power is supplied to the control board at the pin 11 and 9 of connector #1. (Refer to figure 1)
115 VACCon 1 Pin 3Con 2 Pin 9
Ice Maker
115 VACCon 1 Pin 3
Con 2 Pin 1
and/or 3
R Lamp
115 VACCon 1 Pin 3Con 2 Pin 5
115 VACCon 1 Pin 3Con 2 Pin 7
Defrost
Heater
115 VACCon 1 Pin 3Con 1 Pin 1Compressor
Output
Voltage
Pin
Number
Pin
Number
Circuit
F Lamp
COMPNLN
13911Pin
Connector 1
COMPNLN
13911Pin
Connector 1
R LampF Lamp
Def
Heater
Ice
Valve
13579Pin
Connector 2
R LampF Lamp
Def
Heater
Ice
Valve
13579Pin
Connector 2
NOTE: When the door of the refrigerator is left open for 7 minutes or longer, the lamp of the refrigerator turns off
automatically.
French Door
Heather
Con 3 Pin 1 Con 3 Pin 3 115 VAC
Fig. 1
RD
L
N
PK
2
Cr
CAPACITOR PART
OLP
POWER
CORD
SUPPLY
4
M
5
/YL
GN
GN/YL
(GN)
Cs
S
9
PR
34
6
5
7
RD
BN
8
SB
1
CON 2
SB
2
FUSE-M
(72 C)
nc
A
B
com com
DOOR S/W-F
nc
ICE VALVE
LAMP-F
DEF-HEATER
BL
P.T.C
COMP' ACCESSORIES
*PLUG TYPE, CAPACITOR PART, P.T.C START
AND COMP' ACCESSORIES ON CIRCUIT DIAGRAM ARE
OPTION, DOOR HEATER, THERMOSTAT, RT-SENSOR
AND MODEL TYPE.
MEZ62439806
SUBJECT TO CHANGE IN DIFFERENT LOCALITIES
GN: GREEN
PK: PINK
PR: PURPLE
BK: BLACK
YL: YELLOW
SB: SKY BLUE
BN: BROWN
2
4
5
MC,MQ COMP'
4
3
6
CR
BL
ACCESSORIES
N
OLP
L
BK
* ALTERNATIVE COMP'
EG COMP'
* P.T.C OPTION
3
6
2
5
PTC
COMBO KIT
(PTC+OLP)
GN/YL: GREEN/YELLOW
BK/WH: BLACK/WHITE
RD/WH: RED/WHITE
BL/WH: BLUE/WHITE
GY: GRAY
BL: BLUE
RD: RED
WH: WHITE
3
6
BL
(GN)
BO: BRIGHT ORANGE
79
11 10
8 6 345
CON 1
2 1
BL BL
BN
BK
(SB)
WH
com
com nc
A
B
THERMOSTAT
LAMPS-R
FRENCH DOOR HEATER
DOOR S/W-R1&R2
2
CON 3
BL
3
1
BN
nc