LG WF-TS1400 Service Manual ▷ View online
29
4-1. SCHEMETIC DIAGRAM
4. SERVICE INFORMATION
33k 1/8W33k 1/8W
104104
C72C72
104104
C73C73
.
R74R74
KTC3875KTC3875
Q71Q71
10k 1/4W10k 1/4W
*R76*R76
VARISTORVARISTOR
RV1RV1
1N40021N4002
1N40021N4002
2
1
OUTOUT
330uF/16V330uF/16V
C74C74
3
GND
GND
ININ
LM7805CLM7805C
IC171IC171
104104
C79C79
2200uF/25V
C75C75
104104
C76C76
D73D73
D71D71
1N40021N4002
D72D72
33k33k
R73R73
1N40021N4002
D74D74
240mA240mA
TRANSTRANS
103103
C82C82
4.7K 1/4W4.7K 1/4W
2k 1/4W2k 1/4W
*R75*R75
*R104*R104
47k 1/8W47k 1/8W
103103
C81C81
R82R82
KTC3875KTC3875
Q81Q81
10k 1/8W10k 1/8W
R81R81
RLS4148RLS4148
SD81SD81
4.7k 1/4W4.7k 1/4W
*R83*R83
SD102SD102
47k 1/8W47k 1/8W
R105
KTC3875KTC3875
Q102
RLS4148RLS4148
1N41481N4148
47k 1/8W47k 1/8W
R84R84
SD82SD82
1N40071N4007
D81D81
330k/1W330k/1W
*R85 RJ*R85 RJ
104/AC250V104/AC250V
C77C77
\
\
RELAY2RELAY2
10A/250V10A/250V
4
3
3
\
\
1
2
2
10k 1/8W10k 1/8W
47k 1/8W47k 1/8W
4.7k 1/4W4.7k 1/4W
47k47k
R119R119
P67P67
OPTION PARTOPTION PART
RESET PARTRESET PART
DOOR PARTDOOR PART
*R47*R47
2
1
REED SWREED SW
SW1SW1
100 1/8W100 1/8W
103103
103103
C46C46
C45C45
NA4NA4
SENSING PART
WATER LEVELWATER LEVEL
THERMISTORTHERMISTOR
RT2RT2
t
THERMISTORTHERMISTOR
RT1RT1
t
1
2
3'3'
2'2'
3
\\
2
\\
105105
C36C36
1'1'
\
1
\
J3J3
PULSE TRANSPULSE TRANS
4'4'
4
CONN 4X2CONN 4X2
\\
2'2'
2
3'3'
\
\
\
\
3
15k 1/8W 1%15k 1/8W 1%
R36R36
.
10k 1/8W 1%10k 1/8W 1%
R31R31
*RP10*RP10
10k10k
RP4RP4
10k10k
*RP2*RP2
10k10k
*RP6*RP6
10k10k
10k10k
*RP8*RP8
10k10k
RP3RP3
10k10k
RP1RP1
.
.
10k10k
RP5RP5
10k10k
RP7RP7
10k10k
RP9RP9
.
.
.
.
10k10k
*RP12*RP12
RP11RP11
10k10k
5151
5555
5454
5353
5252
P63P63
P65P65
P64P64
P62P62
P61P61
1818
P17P17
3939
35,36,41,42,43,4435,36,41,42,43,44
\
P42P42
P44P44
P43P43
3838
3737
P45P45
4040
P52/PWMP52/PWM
4545
R213R213
R214R214
4.7k 1/8W4.7k 1/8W
4.7k 1/8W4.7k 1/8W
R211R211
R212R212
4.7k 1/8W4.7k 1/8W
4.7k 1/8W4.7k 1/8W
1uF/50V
C43C43
R43R43
1uF/50V
70427042
IC51IC51
104104
C53C53
.
2
\
1
\
3
\
C52C52
*R51*R51
10k 1/4W10k 1/4W
100k 1/8W100k 1/8W
R46R46
10k 1/8W10k 1/8W
R45R45
1.5k 1/8W1.5k 1/8W
.
103103
*C51*C51
OSCILLATION PARTOSCILLATION PART
7
8MHz8MHz
CRCR
102102
100 1/8W 1%100 1/8W 1%
IC41BIC41B
100k 1/8W100k 1/8W
560 1/8W560 1/8W
R41R41
R42R42
104104
C42C42
1111
1010
3
4
560K 1/8W 1%560K 1/8W 1%
*C31*C31
103103
R32R32
Q31Q31
KTC3875KTC3875
R37R37
14 14
1
2
1313
HD14069UBHD14069UB
103103
1212
*R44*R44
C41C41
*C35*C35
102102
10k 1/4W10k 1/4W
1k 1/4W1k 1/4W
*R35*R35
*R34*R34
RLS4148RLS4148
SD31SD31
C34C34
103103
2525
2323
RSTRST
XoutXout
1313
4747
1M 1/8W1M 1/8W
RR1RR1
P56P56
P54P54
2626
.
P60/AINOP60/AINO
5050
TESTTEST
VSSVSS
2020
10k10k
R61R61
5858
VassVass
4848
VarefVaref
VddVdd
4949
103103
C71C71
1313
22k 1/4W22k 1/4W
P12P12
TMP87CM41FTMP87CM41F
5656
1414
10k 1/4W10k 1/4W
*R33*R33
P66P66
P13P13
P10/INT0P10/INT0
1111
P15P15
1616
.
C78C78
P16P16
1717
47k 1/8W47k 1/8W
R87R87
*R88*R88
dot1dot1
DISPLAY1DISPLAY1
\
\
SW6 PROGRAMSW6 PROGRAM
SW5 WATER LEVELSW5 WATER LEVEL
SW4 WATER TEMP.SW4 WATER TEMP.
L4 JeanL4 Jean
L12 HotL12 Hot
KEY PARTKEY PART
KEY PARTKEY PART
SW3 WASHSW3 WASH
SW2 RINSESW2 RINSE
TX2TX2
J2J2
1'1'
\\
1
.
SW1 SPINSW1 SPIN
SD1SD1
1N41481N4148
SD2SD2
1N41481N4148
104104
C1C1
L8 TubClean L8 TubClean
L7 FavoriteL7 Favorite
L6 SilentL6 Silent
L5 WoolL5 Wool
11 11
9
\
10 10
\
\
\
12 12
8
7
6
5
KID65783AF/TD62783AWKID65783AF/TD62783AW
\
\
IC11IC11
13 13
\
14 14
\
\
15 15
\
16 16
L27 GreenL27 Green
L27 RedL27 Red
L15 Time LeftL15 Time Left
L14 DelayL14 Delay
L13 ColdL13 Cold
L24 MediumL24 Medium
L26 SmallL26 Small
L25L25
L1 FuzzyL1 Fuzzy
L3 EconomyL3 Economy
L2 DelicateL2 Delicate
DISPLAY PART
L9 StrongL9 Strong
L11 GentleL11 Gentle
L10 NormalL10 Normal
L18 RinseL18 Rinse
L19 SpinL19 Spin
L17 WashL17 Wash
L16 SoakL16 Soak
L20 Ex-LargeL20 Ex-Large
L22 LargeL22 Large
L23L23
L21L21
4.7k 1/4W4.7k 1/4W
SW8 START/PAUSESW8 START/PAUSE
SW9 DELAY TIMESW9 DELAY TIME
*C33*C33
SW7 STAIN LEVELSW7 STAIN LEVEL
SD4SD4
SD3SD3
1N41481N4148
1N41481N4148
SW10 POWERSW10 POWER
103103
10k 1/4W10k 1/4W
*R20*R20
10k 1/4W10k 1/4W
*R21*R21
1N41481N4148
SD32SD32
10k 1/4W10k 1/4W
*R22*R22
150 1/8W150 1/8W
R171R171
150 1/8W150 1/8W
R172R172
150 1/8W150 1/8W
R170
*R7*R7
*R7*R7
4
3
2
\
17 17
\
\
\
18 18
\
19 19
\
dot2dot2
min(wash)min(wash)
12 12
b'b'
a'a'a'a'
b'b'
\
11 11
\
time(rinse)time(rinse)
min(spin)min(spin)
10 10
9
\
\
a
b
7
6
KTC3875KTC3875
GND
GND
300 1/4W300 1/4W
*R8*R8
Q1Q1
300 1/4W300 1/4W
300 1/4W300 1/4W
8
1111
1010
O6O6
O7O7
47k 1/4W47k 1/4W
*R9*R9
*R10
7
I7I7
6
I6I6
150 1/8W150 1/8W
R165R165
6262
2222
5757
1919
2121
102102
C171C171
102102
C170
102102
C172C172
P21P21
P20P20
P22P22
5959
6060
6161
150 1/8W150 1/8W
150 1/8W150 1/8W
150 1/8W150 1/8W
R168R168
R166R166
R167R167
P71P71
P70P70
P72P72
P73P73
P11P11
1212
10k10k
103103
C86C86
R86R86
.
KTC3875KTC3875
Q86Q86
47k 1/8W47k 1/8W
R93R93
3
4
10k 1/8W10k 1/8W
P53P53
4646
103103
C91C91
R91R91
P00P00
0303
.
KTC3875KTC3875
Q91Q91
R92R92
.
R102
6363
6464
150 1/8W150 1/8W
150 1/8W150 1/8W
150 1/8W150 1/8W
150 1/8W150 1/8W
R163R163
R164R164
R161R161
R162R162
IC1IC1
P74P74
P75P75
P76P76
P77P77
1
2
2727
2828
2929
R138R138
150 1/8W150 1/8W
150 1/8W150 1/8W
150 1/8W150 1/8W
R137R137
R136R136
P30P30
P31P31
P32P32
4.7K 1/8W4.7K 1/8W
R101R101
Rinse ValveRinse Valve
Hot ValveHot Valve
Cold ValveCold Valve
Left MotorLeft Motor
Right MotorRight Motor
Drain Motor1(TDL)Drain Motor1(TDL)
Drain Motor2(outlet)Drain Motor2(outlet)
1010
P07P07
P06P06
P04P04
9
7
P05P05
P03P03
8
6
P01P01
P02P02
4
5
GND
GND
1
O1O1
8
I1I1
3
2
O2O2
O3O3
I3I3
I2I2
5
4
O4O4
O5O5
I5I5
I4I4
6
O6O6
I6I6
*R7*R7
e'e'e'e'
d'd'
c'c'c'c'
d'd'
g'g'
f'f'f'f'
g'g'
SCD-337SCD-337
1
e
c
d
R5R5
5
4
f
g
R2R2
3
2
R3R3
R1R1
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
10k 1/8W
ULN2004ULN2004
1616
300 1/8W300 1/8W
300 1/4W300 1/4W
300 1/8W300 1/8W
300 1/8W300 1/8W
O3O3
1313
1212
O4O4
O5O5
1515
1414
O1O1
O2O2
300 1/8W300 1/8W
IC2IC2
1
I3I3
5
I5I5
4
I4I4
3
2
I2I2
I1I1
R13
R13
R12
R12
R12
R11
R11
R11
R18
R18
R15
R15
R17
R17
R14
R14
R16
R16
.
3030
3131
3232
3333
3434
150 1/8W150 1/8W
150 1/8W150 1/8W
150 1/8W150 1/8W
150 1/8W150 1/8W
R135R135
R134R134
R133R133
R132R132
150 1/8W150 1/8W
R131R131
P35P35
P33P33
P34P34
P36P36
P37P37
Drain PumpDrain Pump
P14P14
1515
ULN2004ULN2004
IC5IC5
4.7K4.7K
R120
47k 1/8W47k 1/8W
7
2
IC211IC211
\
M93C46M93C46
4
3
\
\
\
\
6
\
5
104104
C211C211
1
\
8
\
.
R63R63
KTC3875KTC3875
Q61Q61
1.2k 1/4W1.2k 1/4W
2k 1/8W 1%2k 1/8W 1%
R72R72
*R62*R62
4.7k 1/4W4.7k 1/4W
10k 1/4W10k 1/4W
*R71*R71
BUZZERBUZZER
2
1
BZBZ
1.2k 1/4W1.2k 1/4W
*R64*R64
*R65*R65
47k 1/8W47k 1/8W
R89R89
.
C87C87
103103
.
FUSEFUSE
F1F1
1 \\
BL1BL1
\
2
\
V1V1
2'2'
RD2RD2
\
1
\
J8J8
1'1'
GY2GY2
\\
1
1
2
1'1'
100.1/2W100.1/2W
*R128 RS*R128 RS
1' 1'
1
CVCV
Q101Q101
2
1
2
RLS4148RLS4148
SD86SD86
.
1
817C817C
IC91IC91
2
RLS4148RLS4148
SD91SD91
1N41481N4148
SD87SD87
1N40071N4007
D86D86
1N40071N4007
D91D91
KTC3875KTC3875
1' 1'
\ \
330k/1W330k/1W
*R90 RJ*R90 RJ
100k/3W100k/3W
100k/3W100k/3W
*R95 RS*R95 RS
*R96 RS*R96 RS
\
M
J8J8
B1B1
2' 2'
\ \
\
2' 2'
\ \
B2B2
J8J8
RLY2RLY2
10A/250V10A/250V
RLS4148RLS4148
SD101SD101
2
1
\
\
\
\
3
4
103/AC250V103/AC250V
100,1/2W100,1/2W
*R103 RS*R103 RS
C103
1616
1515
1414
1313
1212
1111
*R112 RS*R112 RS
*R111 RS*R111 RS
*R113 RS*R113 RS
75 1/2W75 1/2W
75 1/2W75 1/2W
470 1/2W470 1/2W
*R114 RS*R114 RS
*R115 RS*R115 RS
*R117 RS*R117 RS
*R116 RS*R116 RS
470 1/2W470 1/2W
470 1/2W470 1/2W
470 1/2W470 1/2W
470 1/2W470 1/2W
100.1/2W100.1/2W
*R122 RS*R122 RS
103/250V103/250V
YL2YL2
C122C122
TRIACTRIAC
TR2TR2
103/250V103/250V
C121C121
BL2BL2
TRIACTRIAC
TR1TR1
100.1/2W100.1/2W
*R121 RS*R121 RS
TRIACTRIAC
TR3TR3
104104
C112C112
104104
C111C111
103103
C113C113
3
2
1
2
1
2'2'
\\
J8J8
2
1
2
\
\
\
\
HVHV
B3B3
\ \
\ \
2' 2'
\
\
RVRV
B4B4
J8J8
1' 1'
\ \
B7B7
DM/PUMPDM/PUMP
\
\
BMBM
\
\
3' 3'
\ \
B8B8
2' 2'
\ \
\
\
CMCM
B6B6
J1J1
1' 1'
\ \
TRIACTRIAC
TR6TR6
100.1/2W100.1/2W
*R125 RS*R125 RS
472/250V472/250V
472/250V472/250V
C123C123
C124C124
100.1/2W100.1/2W
*R123 RS*R123 RS
TRIACTRIAC
TR4TR4
WH2WH2
472/250V472/250V
C125C125
100.1/2W100.1/2W
*R124 RS*R124 RS
TRIACTRIAC
TR5TR5
103103
C114C114
C115C115
103103
103103
C116C116
YL3YL3
472/250V472/250V
C127C127
472/250V472/250V
C126C126
100.1/2W100.1/2W
*R126 RS*R126 RS
TRIACTRIAC
TR7TR7
103/250V103/250V
C128C128
TRIACTRIAC
100.1/2W100.1/2W
*R127 RS*R127 RS
TR7TR7
104104
C117C117
104104
C117C117
KTC3875KTC3875
Q111Q111
*R118 RS*R118 RS
75 1/2W75 1/2W
.
103103
C119C119
30
4-2. WIRING DIAGRAM
31
4-3. PROGRAM TIME CHART
Contents of changed algorithm by the sensor
Algorithm change :
The algorithm is automatically changed to operate at the optimum
condition according to the condition detected by the sensor
.
LED Display
Orange
Green
Red
W
ash Condition
Low T
emperature
High Hardness
Little Detergent
Moderate Condition
High T
emperature
Low Hardness
Much Detergent
Change Factor
W
ash time
W
ash time
W
ash pattern (Off time)
Spin time
Rinse w
. level
Rinse times
Change Level
Max +8 min.
Max -4 min.
Max +0.2 sec.
Max +2 min.
Max -0.2kHz
Deep rinse addition
Water Supply
Soak
Washing
Drain
Intermittent Spin
No Power Spin
Shower
Drain
Intermittent Spin
High Speed Spin
Intermittent Spin
Water Supply
Rinsing
Drain
Intermittent Spin
min
min
min
sec
sec
sec
sec
sec
sec
sec
sec
min
min
min
Fuzzy
XL~L/XL
7
15
5
120
130
30
40
60
20
130
7
3
Favorite
L~M/L
6
14
4
120
120
30
40
60
20
120
6
3
M~S/M
5
13
3
120
100
30
40
60
20
100
5
3
S
3
9
3
120
100
30
40
60
20
100
3
3
Jean
XL~L/XL
7
15
5
120
130
7
3
5
120
L~M/L
6
14
4
120
120
6
3
4
120
M~S/M
5
13
3
120
100
5
3
3
120
S
3
9
3
120
100
3
3
3
120
Delicate
XL~L/XL
7
10
5
60
100
7
3
5
60
L~M/L
6
10
4
60
90
6
3
4
60
M~S/M
5
10
3
60
80
5
3
3
60
S
3
10
3
60
80
3
3
3
60
Wool
XL~L/XL
7
6
5
60
100
7
3
5
60
L~M/L
6
6
4
60
90
6
3
4
60
M~S/M
5
6
3
60
80
5
3
3
60
S
Quick
XL~L/XL
7
3
5
90
110
60
110
7
2
Wash
L~M/L
6
3
4
90
100
60
100
6
2
M~S/M
5
3
3
90
90
60
90
5
2
S
3
3
3
90
90
60
90
3
2
Silent
XL~L/XL
7
25
5
120
130
7
3
5
120
L~M/L
6
25
4
120
120
6
3
4
120
M~S/M
5
25
3
120
100
5
3
3
120
S
3
25
3
120
100
3
3
3
120
Tub Clean
XL
7
125
5
7
3
1nd Deep Rinse
2nd
D
Program
Water Leve
l
Wash
Rinse
No Power Spin
Water Supply
Rinsing
Drain
Intermittent Spin
High Speed Spin
No Power Spin
min
min
min
min
5
200
5
150
4
200
5
130
3
200
4
110
3
200
4
100
130
7
3
5
200
5
150
120
6
3
4
200
5
130
100
5
3
3
200
4
110
100
3
3
3
200
4
100
100
7
3
5
100
150
90
6
3
4
100
130
80
5
3
3
100
110
80
3
3
3
100
100
100
7
3
5
100
150
90
6
3
4
100
130
80
5
3
3
100
110
100
5
200
1
150
4
200
1
130
3
200
1
110
3
200
1
100
130
7
3
5
200
150
120
6
3
4
200
130
100
5
3
3
200
110
100
3
3
3
200
100
5
200
80
Spin
D
eep Rinse
sec
sec
sec
32
4-4. ADJUSTMENT
1) Brake lever adjustment
• Shown as in the figure, untighten the adjustment
screw to keep clearance less than 1.9°æ0.1mm
between the tip and the brake lever.
And turn on the lock nut then paint it red.
between the tip and the brake lever.
And turn on the lock nut then paint it red.
• Painting part is adjusted in factory, it does not
need adjusting.
• Adjust the screw properly if the brake doesn't
work during spin.
CAUTION
2) Keeping clearance
• Keep the clearance about 2.0~3.5mm between
brake lever and P.V link as shown in the figure.
• Clutch pulley must be turning to one side P.V
Link is pulling the brake Lever.
• Clutch pulley must be turning to the left and the
right when P.V Linke does not pull the brake
Lever.
Lever.
CAUTION
3) V-belt adjustment
• Adjust the motor pulley by pushing the motor like
arrow
, to make V-belt tension parallel when
pushed at the point of arrow
.
• When the V-belt is not properly adjusted, the
motor will not be running or the belt will be
slipping.
slipping.
CAUTION
Click on the first or last page to see other WF-TS1400 service manuals if exist.