LG WF-T75B30AD Service Manual ▷ View online
28
4-1. SCHEMETIC DIAGRAM
A) WFT60A30(1)A(B,C)P(H,C,D,E,F,M) / WFT65A30(1)D(E,F)P(H,C,D,E,F,M) /
WFT70A30(1)D(E,F)P(H,C,D,E,F,M) / WFT75B30(1)A(B)P(H,C,D,E,F,M) /
WFT85B30(1)D(E)P(H,C,D,E,F,M) / WF-TS728PC / WF-TS788TC / WF-T8031TD/
WF-TS888PC / WF-TS988TH / WFT7800DP / WFT9200EP / WF-T8011D / WF-T7011D
4. SERVICE INFORMATION
WF-T6530TDW / WF-T8030TDW / WF-T9030TDW / WF-T8030TD / WF-T8040TD
29
Buzzer
KTC3875
2K 1/8W 1%
R72
Q61
10K 1/4W 1%
*R71
1.2K 1/4W
*R64
1.2K 1/4W
*R65
YL2
BL1
RD2
BL2
WH2
YL3
GY2
OSILLATION PART
PART
RESET PART
OPTION
DOOR PART
Reed
Switch
PART
WATER LEVEL
SENSING
KEY PART
DISPLAY
PART
+
EEPROM PART
+
+
Note
R211~214
4.7K 1/8W * 4EA
1
3
4
2
EEPROM
IC211
8
104
C211
5
6
7
12
6
7
5
3
2
8
R20
R41
BL3
*R47
100 1/4W
*RP2
RP1
10K
2
1
7042
RP4
*RP6
RP3
10K
RP5
10K
*RP8
*RP10
RP7
10K
RP9
10K
103
C45
103
C46
560 1/8W
1.5K 1/8W
R43
R45
10K 1/8W
R42
100K 1/8W
C53
104
IC51
4.7K 1/8W
R46
11 10
1
13
7
14
2
µø¿€/¿œ
Ω√
¡§¡ˆ
PULSE
TRANS
NA4
ø¬µµ
ºæº
≠
ºæº
≠
4
3
3
2
∞
浵
SW3
1
SW6
π∞≥
Ù¿Ã
SW2
SW1
«‡¡§
ƒ
⁄
Ω∫
SD1
SW4
π∞
ªÏ
ø
π
æ‡
SW5
SD2
*C31
104
C42
C36
105
R36
15K 1/8W 1%
103
IC41 HD14069UB
3
4
560K 1/4W 1%
R32
1N4148*4EA
10K 1/8W1%
R31
POWER
SW8
±
fi
ºˆ
SW7
SD3
SD4
SD1~SD4
10K 1/4W
*R20
IC11 (M54563P/KID62783P)
16
∞ʵµ(Green)
10
104
*C1
9
1
2
3
18
º“
L7
L6
L5
17
L30
L2
L4
L3
¡
fl
¿
˙
L1
∞
Ì
«Û±¿
L10
L11
≈
ªºˆ
ºº
≈π
L9
L8
∫“
∏≤
∞ʵµ(Red)
4
5
L25
¡
∂ºº¡§
≥√
ºˆ
L24
L23
15
L18
L16
L17
¡§¿
Ω
±‚æÔ
14
L30
6
7
8
13
12
b
a
9
11
a
b
4
E-Rinse
E-Wash
Jentle Spin
ø
π
æ‡
L19
L20
≥≤
¿
∫
L22
L21
ø¬ºˆ
Delicate
øÔ
±
fi
º”
L14
L15
√
ª
π
Ÿ¡ˆ
L13
∫–
Ω√
L12
«•¡ÿ
L28
L27
L26
f
e
d
c
g
f
1
e
d
c
g
C74
330uF/16V
P41(36),P40(35)
P30(27)
*RP12
1UF/ 50V
RP11
10K
C52
P61(51),AD
P65(55),AD
P63(53),AD
P62(52),AD
P64(54),AD
103
*C51
P17(18)
8MHz
10K 1/4W
*R51
C.R
RR1
1M 1/8W
C43
102
22K 1/4W
*R44
P54(47)
RST(23)
Xout(25)
Xin(24)
P12(13)
P60(50)
P45(40)
P43(38)
P42(37)
P44(39)
P47(42),P46(41)
P51(44),P50(43)
AINO
P52(45)
PWM
R61
10K 1/8W
10K 1/4W
C78
103
*R76
Vass(48)
Vdd(58)
Varef(49)
TEST(20)
Vss(26)
INTO
P10(11)
P15(16)
C72
C71
103
104
104
C73
+
Q71
33K 1/8W
R74
KTC3875
R105
R63
47K 1/8W
*R62
4.7K 1/4W
IC71
7805
O
G
2200uF
/25V
C75
I
104
C79
2K 1/4W
*R75
IN4002*4EA
D71~74
D73
D71
104
C76
D74
D72
47K 1/8W
*R104
4.7K 1/4W
33K 1/8W
R73
KTC3875
Q102
SD102
RLS4148
PCB
TRANS
RELAY2
OMI-SH-112LM
R87
IC91
817C
R82
47K 1/8W
47K 1/8W
P71(60)
C34
SD31
*R33
*R34
103
C41
*R35
1K 1/4W
100 1/8W 1%
*C35
102
KTC3198Y
Q31
R37
10K 1/4W 1%
RLS4148
P66(56)
10K 1/4W 1%
/50V
1uF
P13(14),DVO
R22
*C33
103
R21
SD32
1N4148
P67(57)
P20(19)
P21(21)
P22(22)
P70(59)
10K 1/4W
103
C86
*R86
103
C81
R81
10K 1/8W
P16(17)
P11(12)
KTC3875
Q81
R93
KTC3198Y
Q86
3
IC1 (TMP87CM41F)
IC1 (TMP87CM41F)
P53(46)
R91
103
C91
10K 1/8W
P00(03)
ALPHA
4.7K 1/8W
R101
KTC3875
Q91
47K 1/8W
R102
10K 1/8W
4
R92
KTC3875
SD101
RLS4148
Q101
IC2 ULN2004A
R6
R7
R18
16
15
8
P73(62)
P72(61)
P74(63)
P75(64)
P76(1)
2
1
P77(2)
P32(29)
P31(28)
300 1/4W *7EA
R5
R4
R3
R2
R1
*R1~7
14
12
13
11
10
5
4
3
R11~R18
10K 1/4W*8EA
7
6
P36(33)
P33(30)
P34(31)
P35(32)
P37(34)
5V
Hot Valve
P06(09)
P07(10)
P04(07)
P05(08)
Cold Valve
Left Motor
Right Motor
P03(06)
P01(04)
P02(05)
Rinse Valve
Drain Motor2(Outlet)
IC111 ULN2004AF
R119
P14(15)
4.7k 1/4W
Q111 KTC3875
TR6
TR5
TR4
TR1
TR3
*C121
51K 3W *2EA
D91
1N4007
*R83
4.7K 1/4W
SD81
RLS4148
*R88
4.7K 1/4W
1
1N4148
SD86
47K 1/8W
103
SD82
1N4148
C82
103
D81
1N4007
R84
47K 1/8W
1N4148
C87
SD87
1N4007
D86
R89
RM
RLS4148
SD91
2
1
OMI-SH-112LM
RELAY1
AC250V
*R103 RS
100 1/2W
*C103
103/
*R95,96 RS
M
2
LM
2
*C122
*R85 RJ
330K 1W
330K 1W
*R90 RJ
CV
1
HV
2
*C123
RV
1
TDL
3
*C125
*C124
R777
R777
*R121
*R114 RS 470 1/2W
*R113 RS 470 1/2W
*R111 RS 75 1/2W
*R112 RS 75 1/2W
C112
104
TR2
*R115 RS 470 1/2W
*R118 RS 75 1/2W
*R117 RS 470 1/2W
*R116 RS 470 1/2W
*R122
C111
104
*R123
C113
103
C114
103
*R125
*R124
C115
103
C116
103
FUSE
ZNR
561D
AC250V
C77
104/
2
1
R121~128 : 100 ohm 1/2W * 8EA
C121,122,128 : 103 AC250V * 2EA
C123~127 :472 AC250V * 2EA
TR3,4,5,6,7 : BCR1AM * 5EA
Triac RC Snubber part
Triac gate part
Relay ±
∏
µø part
CM & DM Signal part
Power & Interrupt part
Water level & Door Sensing Part
∞
ʵµ & ø¬µµ Sensing part
Display & Key part
TR8
TR7
DM
1
2
*C126
*C127
*C128
61~70
51~60
41~50
31~40
∫Œ«
∞
π
¯»£
211~220
121~130
111~120
101~110
91~100
81~90
71~80
1~30
Buzzer part
EEPROM part
∆
˜
∑
Æ
∞
®¡ˆ part
Reset part
«ÿ¥Á »
∏∑
Œ
∫Œ
*R126
C117
103
*R127
C118
104
*R128
TR1,2,8 : BCR8PM * 3EA
C119
103
*R120
47k 1/8W
Pump Motor
2
1
DM SIGNAL
CM SIGNAL
47K 1/8W
R21,22
10K 1/8W
RESISTANSE : 1M=1000000
RW : WOUND TYPE
RM : MPR/CEMENT TYPE
RJ : METAL GLAZED TYPE
RS : METAL OXIDE TYPE
'-' : NORMAL TYPE(CARBON)
R50 : R50 is 'SMD' type
*R50 : R50 is 'IMD' type
1) example : 10K = 10K , 1/4W, 5%
*R50 RS 10K 1/4W
2. The Spec of Resistor
WATTAGE
1K=1000
10=10
-12
1. The unit of Ceramic Capacitor is [pF=10 ]
ex) 472=47X10 [pF]=0.0047uF
2
Drain Motor1(TDL)
PUMP
4-1. DIAGRAMA ESQUEMÁTICO
B) WFT85C30(1)D(E,F)C(H,P,D,E,F,M) /
WFT10C30(1)D(E,F)C(H,P,D,E,F,M) / WF-TS1088TH
30
4-2. DIAGRAMA DE CABLEADO
B) Series WFT75B30(1)A(B)P(H,C,D,E,F,M) / WFT85B30(1)D(E)P(H,C,D,E,F,M) /
WF-TS888PC / WF-TS988TH / WFT9200EP / WF-T8011D/ WF-T8031TD/
4-2. WIRING DIAGRAM
A) Series WFT60A30(1)A(B,C)P(H,C,D,E,F,M) / WFT65A30(1)D(E,F)P(H,C,D,E,F,M)
WFT70A30(1)D(E,F)P(H,C,D,E,F,M) / WF-TS728PC / WF-TS788TC /
WFT7800DP / WF-T7011D / WF-T6530TDW
WF-T8030TDW / WF-T9030TDW / WF-T8030TD / WF-T8040TD
31
4-2. WIRING DIAGRAM
C) WFT85C30(1)D(E,F)C(H,P,D,E,F,M) /
WFT10C30(1)D(E,F)C(H,P,D,E,F,M) / WF-TS1088TH
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