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VLS YOBI10 29 28 27 26 25 24 23 22 21 20 19 18 17 16 GSP1 VSH3.3V VSH3.3V NC GND GND GND GLBR GCK POWER GSP2 VGH VGH CSCOM CSCOM 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 YOBI9 YOBI8 YOBI7 YOBI6 YOBI5 YOBI4 YOBI3 YOBI2 YOBI1 VGL VGL VEE VEE

30

SUB DUNTKC857WE (QPWBFC857WJ)

10
LCD GATE (QCNW-C947WJQZ)
SC105 KEY1 3.3Vstb POWER KEY2 N0596RE GND

11
(QCNW-B813WJPZ )
1 2 3 4 5 5 4 3 2 1 KEY1 POWER GND KEY2

12
(QCNW-C853WJQZ)
SC4201 N0596RE 3.3Vstb

13
P3301 N0442CE 1 SP_R (+) SP_R (-) SP_L (+) SP_L (-) GND 4 5 6 7 8 POWER_LED OPC_LED TIMER_LED OPC IREM 3 PC5V-A 2 3.3Vstb 1 2 3 4 SC3601 N0895RE SC4001 N0896RE 1 2 3 4 5 6 7 8 3.3Vstb PC5V-A IREM GND POWER_LED OPC_LED TIMER_LED OPC

14
(QCNW-B814WJPZ)
P3601 Z1338CE INV +B INV +B INV +B INV +B INV GND INV GND INV GND INV GND OFL1 OFL2 VSH3.3 LMP ERR SIG.GND 13 12 11 10 9 8 7 6 5 4 3 2 1 SC6701 Z1338CE 13 12 11 10 9 8 7 6 5 4 3 2 1 INV +B INV +B INV +B INV +B INV GND INV GND INV GND INV GND OFL1 OFL2 VSH3.3 LMP ERR SIG.GND

31

LED DUNTKC859WE (QPWBFC859WJ)

SW DUNTKC858WE ( Q PWBFC858WJ)

15

16
INVERTER DUNTKC856W E ( QPWBFC856WJ)
1 2 1 2 1 2 1 2 1 2 P6704 NA391WJ P6703 NA391WJ P6702 NA391WJ P6701 NA391WJ P6700 NA391WJ

17

18

BACKLIGHT

LC-20SH1E

(KLMP-A046WJZZ)

19

LC-20SH1E

DESCRIPTION OF SCHEMATIC DIAGRAM
VOLTAGE MEASUREMENT CONDITION:
1. The voltages at test points are measured on the stable supply voltage of AC 220-240V. Signals are fed by a colour bar signal generator for servicing purpose and the above voltages are measured with a 20k ohm/V tester.

INDICATION OF RESISTOR & CAPACITOR:
RESISTOR 1. The unit of resistance "" is omitted. (K=k=1000 , M=M). 2. All resistors are ± 5%, unless otherwise noted. (J= ± 5%, F= ± 1%, D= ± 0.5%) 3. All resistors are 1/16W, unless otherwise noted. 4. All resistors are Carbon type, unless otherwise noted. W : Cement C : Solid S : Oxide Film T : Special N : Metal Coating CAPACITOR 1. All capacitors are µF, unless otherwise noted. (P=pF=µµF). 2. All capacitors are 50V, unless otherwise noted. 3. All capacitors are Ceramic type, unless otherwise noted. (ML): Mylar (TA): Tantalum (PF): Polypro Film (ST): Styrol

CAUTION:
This circuit diagram is original one, therefore there may be a slight difference from yours.

IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "å" ( ) ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET.

32

LC-20SH1E

SCHEMATIC DIAGRAM
Ë INVERTER Unit
H

G

F

E

D

C

B

A

1

2

3

4

5

6

33

LC-20SH1E

Ë SUB Unit-1/2
H

G

F

E

D

C

B

A

1

2

3

4

5

6

7

8

9

10

34

LC-20SH1E

10

11

12

13

14

15

16

17

18

19

35

LC-20SH1E

Ë SUB Unit-2/2
H

G

F

E

D

C

B

A

1

2

3

4

5

6

7

8

9

10

36

LC-20SH1E

10

11

12

13

14

15

16

17

18

19

37

LC-20SH1E

Ë MAIN Unit-1/3
H

G

F

E

D

C

B

A

1

2

3

4

5

6

7

8

9

10

38

LC-20SH1E

10

11

12

13

14

15

16

17

18

19

39

LC-20SH1E

Ë MAIN Unit-2/3
H

G

F

E

D

C

B

A

1

2

3

4

5

6

7

8

9

10

40

LC-20SH1E

10

11

12

13

14

15

16

17

18

19

41

LC-20SH1E

Ë MAIN Unit-3/3
H

G

F

E

D

C

B

A

1

2

3

4

5

6

7

8

9

10

42

LC-20SH1E

10

11

12

13

14

15

16

17

18

19

43

LC-20SH1E

Ë OPERATION Unit
H

G

F

E

D

C

B

A

1

2

3

4

5

6

44

LC-20SH1E

Ë R/C, LED Unit
H

G

F

E

D

C

B

A

1

2

3

4

5

6

45

LC-20SH1E

PRINTED WIRING BOARD ASSEMBLIES
SC1202 SC1201

50

IC2201

R1205 108
109 56

R1206

R1207

1

R1214 R1210 R1120

H

C1207

20

1

C2201

73 72

1

R1116

G
R1211 IC1101 C2203
28 28

L2202
1

144

29

IC1201

1

36
1

F
SC1203
R22** 07 08 03 04 05 06 4

37

C816

1
2 20

C127

C764

30

4

1

CN107 P2002

CN108

R1104

C722

E

IC101
5 8

1

19

R123

R7

KC860WE

Q105

D101 C551

K2

D

C

B
C205

TU201 C206

R219 L202

XC860WJN4

R201

L203
2

C207

SF203 C201
14

C80

A

K1

4
6 7

C204

1

SC104

15

MAIN Unit (Side-A)
1 2 3 4 5 8 9 10

46

LC-20SH1E

SC1201 C759 C766 L751 C1119

1

IC751

1

3

2

R713

5
Q702

1 SC105

C760

116
C722

Q756 Q755

R755

01

15

Q752
C752

C704

3

1

Q753

IC704

C702
14

D1103 D759

D755

Q758

C753

D751

14

C1120

Q754

2

R1104

IC701
Q751
3 1

C764

IC703

C709
C751
1

C703

R123

R767

1

32

C710

D101 C551

C556

IC151

C111
51

16

17 26

C117

C820

C126

X101

C124 SF201

X501

C523

C525

C801

76

SF202

1

L203

R301 C303 C301 IC501 C535

100

C521
4 1

R201

R304

R305

3 201
4

15

1

23

C724

C826

10

11

12

13

14

15

C825

FB808

2

SC106

22

C822 C549 D702 R704

C720

a
16 17

C804

C304

C216

C420

C215

5

7

IC702

C513

C512

C524

C501

C152

1

4

2

SC102

4

3

15

18

19

47

LC-20SH1E

H
SC1202 SC1201

C1207
R1209 R1210 R1214

R1205 L2201 R1242

R1206

R1207

R1120

R1116

R1218

C2201

C722

G
C2203 IC2201 IC1201

R1211

C1203 R2232

L2202

R1240 C1216

IC1101

C2206

F
SC1203

R2207

R2208

R2203

R2204

R2205

R2206
C1104 R1102

R1104

C1105

R1101

C1114

P107 C816

P108
C763

C764 P2002
C127 R124

IC101

E
Q105

R123

D101

R122

C551

D

C117

C126

TU201

C124

C

C801

L203

B
R219 SF203 C207 C205 C206 L202 C204
R306

R201 C220 C80

C201

SC104 TP101

A

MAIN Unit (Chip Parts Side-A)
1 2 3 4 5 6 7 8 9 10

48

LC-20SH1E

SC1201 C766 L751

C1119 C759

IC751

SC105

Q759

R1116 R1118 R1117 R766 C760 D1101 D1103 D759

R713

C758

R708 R763

Q702

R141 R221

Q758

R762 D756

R764 Q755

D757 Q756

R220

R761 R2233

R757 R1109 R752 C1113 C1108 C1110 IC1101 L752 Q752

D755 TP102 C702

R755

Q757

C752

R1129
Q753

R1130

C1115

R1115

R753 C754 C753 C704

IC704

R1104 C127 R122
3 C201

C1105

C1114

R1106

R1111

C764

R1101

Q754 C1120 R754 D751

R701

R702

C701

SC102

C763

R767

R148

R149

R146
IC703

C709

Q751 R751 IC701 C703

C712

R711
C751 R721 Q701

R710

R124
R123 R103

R147

Q703

D101

C111 C556 C551 R143 R162

C710 IC151 R163 R719 R718 R720 C152

R138

C501

TL202

C820 C117

R161

C524

C833

C525 C126 X101

C834

IC501 C124

C523

C835

C512

C801 SF201 SF202

X501

L203 R301 C303

C521 TL233 TL230 TL232 TL231 C535 TL210 TL204

C513

R239

C366

C367

R201 C220 C804 C301 C304 C216 C420 C215 C822 C549 IC702

R305 R304
SC106

R142

R144
R704

D702 R703

C720

FB808

C724

C826

C825

10

11

12

13

14

15

16

17

18

19

49

803

801

809

105

106

107 109 108

R1105

R1107

D701

C1112 R1110
Q1103 C557

Q203 Q204

FB***

Q1106

D1104
R1123 C1109

SF201 SF202
R807

R214 R213 Q201

R1114

C105

Q1102 C1116
Q1105

R714

C821 C805 C803 R801 C123 R827 R804 R826 C302

R715
R127

C106
R716

R107

C711 R125 C505 R104 R112 R2231 R2230 R152 R137 R136 R151 C151 FB151

C558 C552 C547 R558 R557
R108 R552

C305

C109

C419 C217 C410 C412 C306 R816 R817 C817
C517

FB805

C761
R717

FB806 C536 R577
C580 C582 C579 C575 C578 C574 C570 C514

C830 R828

R110

C827 C518 FB508 C721
FB533 FB507

MAIN Unit (Side-B)
R145 R139

R707

R819

Q106

R822

R705 R706
5

R823

6
R709 C511
R544

7 C D

8

SC105

R135 R140
1

Q803

Q802

Q801

LC-20SH1E

G

H

E

B

A

F

1

2

3

4

5

50

Q202

R722

FB104 FB103 FB102 FB101 R109 C107 C104 C102 R111 R129

C103

R769

D704

C369

R368

R369

9

R1124 X101

C417 C416 C415 R423

D208

10