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11 Schematic Diagrams

11-4

LT17N23W

FROM SUB INPUT BOARD

TO PANEL INVERTER

LNA OPTION

Component2 Input(D4,JAPAN ONLY)

FUNCTION BOARD

FROM REMUTE/CON BOARD

Component1 Input

Component Audio Input

C827
100uF
16V

T815

1

MO

50V

100nF

C826

D817
RD8.2MB

1

2

3

RD8.2MB

D820

1

2

3

TP901

1

1/16W

47K

R830

TP900

1

1

TP899

1

R804

75

TP898

R805

75

B

75

R806

1

2

3

BD801

ACB1608H-060-T

1

2

3

9V_1

RLZ8.2

D828

1

D802

RLZ8.2

D824

1

2

3

TP124

N

L806

RLZ8.2

D830

1

2

3

C810

100pF

14

15

47K
1/16W

R844

4

5

6

7

8

9

10

11

12

13

7

8

d_sub15p

CN808

1

2

3

slcon8p

1

2

3

4

5

6

1

3.3UH

L811

CN804

1

TP833

17

TP834

1

TP127

5

6

7

8

9

10

11

12

13

14

15

16

CN805

slcon17p

1

2

3

4

1

TP863

1

R829
68ohm
1/16W

TP862

R864

U97

1

N

1/16W

1K

T871

1

L802

1

100nF

C822

75

TP835

TP865

1

R861

75

R832

C

E

D823
RLZ8.2

1

2

3

2SC2412K-Q

Q801

B

100nF

C815

C816
100nF

T802

1

3

BD804

BLM41PG600SN1L

1

A

2

B

SIG_8

11

D829
RLZ8.2

1

2

2

8

GND_2

SIG_1

4

SIG_ 2

3

6

SIG_3

5

SIG_4

SIG_5

10

SIG_6

9

12

SIG_7

1.5nF

C845

CN803

jack10_1

GND_1

MO

50V

10nF

C839

MO

50V

MO

50V

10nF

C843

MO

16V

100nF

C848

MO

16V

100nF

C847

MO

16V

100nF

C846

MO

50V

10nF

C838

MO

50V

10nF

C837

MO

50V

10nF

C836

MO

50V

10nF

C835

1/16W

MO

50V

10nF

C834

100

1/16W

R815

100

100

1/16W

R814

R812

100

1/16W

R813

R811

100 1/16W

33pF

C801

1/16W

4.7K

R825

L815

75

R802

T866

1

N

100pF

C807

C819
100nF

3

5V

1K

R808

D805

1

2

TP117

1

TP864

1

1

A

2

B

D807

1

2

3

BD808

BLM41PG600SN1L

T862

1

RLZ8.2

TP130

1

TP132

1

TP131

1

L810

3.3UH

C832

1/16W

75

R817

A3.3V

1nF

1/16W

1K

R867

R863

1/16W

1K

R862

R866

1/16W

1K

T828

1

1/16W

1K

1

RLZ8.2

D821

1

2

3

T861

C803

C823
470uF
16V

33pF

16V

220uF

C833

C825

100uF

16V

TP912

1

TP913

1

1

TP911

1

1

TP910

1

T804

5V

T805

1

T807

TP119

1

C806
33pF

T808

1

1

R834

100

1

TP914

TP134

1

TP116

D803

1

2

3

75

R860

U96

1

TP837

1

16

82

C818

16

82

C817

1

A

2

B

R818
75
1/16W

6

C1

4

C2

3

C3

C4

1

5

NC

L807

C821

D839
QZX363C5V6

2

A

T870

1

10uF

T864

1

T869

1

T863

1

TP135

1

1

2

3

1/16W

1K

R865

A

1

B

2

D808

RLZ8.2

1

2

3

L808

100pF

C813

D804

T832

1

3

C830
47UF
50V

1

A

2

B

D827

RLZ8.2

1

2

1

BD807

BLM41PG600SN1L

B

TP122

1

5V

T801

1

2

3

BLM41PG600SN1L

BD806

1

A

2

D826

RLZ8.2

C802
33pF

N

L801

R801
75

7

GND_3

2

SIG_1

3

SIG_2

SIG_3

5

6

SIG_4

8

SIG_5

9

SIG_6

jack9p_b

CN802

1

GND_1

GND_2

4

1

L805

N

U91

1

T806

VIDEO_OUT

VT

4

L816

N

GND3

21

GND4

22

1

NC_1

9

NC_2

NC_3

10

NC_4

11

12

NC_5

NC_6

13

SCL

6

7

SDA

16

SUPLVAL

2ND_SOUND_OUT

15

5

5V_1

17

5V_2

2

9V

14

AFT

3

AGC

AS

8

AUDIO_OUT

18

GND1

19

20

GND2

1

2

3

CN809

D822

RLZ8. 2

R827

D837

47K
1/16W

T858

1

10uF

C814

2

3

RLZ8.2

D815

1

2

3

1

D814

RLZ8.2

1

D834

1

2

3

T865

TP895

1

TP896

1

TP894

1

1

TP909

1

TP907

1

TP908

TP906

1

C820
100pF

3.3UH

L809

1

R833
75

T829

1

U92

ACB1608H-060-T

B

TP831

1

R828

5V

BD803

1/16W

43

1

2

3

D838

1

2

3

RD8.2MB

D816

RLZ8.2

D812

D801

1

2

3

L813

1.5uH

1K

R820

TP832

1

14V_INVERTER

33V

D825

1

2

3

3

C831

100nF

RLZ8.2

1

D835

1

2

ACB1608H-060-T

B

TP125

1

1.5uH

L814

BD802

1

TP869

1

TP867

1

TP868

1

5V

TP866

T856

1

T857

TP897

1

1K

R819

100pF

C828

100pF

C829

1.5uH

L812

1

2

3

T811

1

1

2

3

D833

75
1/16W

D832
MMBD4148SE

10

11

12

13

14

15

16

R816

1

2

3

4

5

6

7

8

9

1

CN801

d_sub16p

1

R831
75

TP123

TP893

1

T816

TP891

1

TP892

1

TP890

1

1

T827

1

1

TP889

TP905

1

TP887

1

TP888

1

TP904

1

1

TP903

1nF

C852

TP133

1

TP902

1nF

C851

T809

1

2

3

T831

1

15

16

17

RLZ8.2

D831

1

3

4

5

6

7

8

9

10

11

12

13

14

CN806

slcon17p

1

2

C840

MO

50V

10nF

C842

D813

1

2

3

MO

50V

10nF

1

RLZ8.2

1

TP871

1

T812

T860

1

TP870

T859

1

C808

100pF

L804

N

R810

N

L803

1K

T868

1

C824
100nF
16V
MO

C812
100pF

100pF

C809

D811

RLZ8.2

1

2

3

1/16W

4.7K

R826

C805
33pF

1

33pF

C804

R803

75

TP118

1

TP861

1

RLZ8.2

D809

1

2

3

T803

D806

1

2

3

RD8.2MB

1

2

3

R807

1K

D819

RD8.2MB

D818

1

2

3

MO

10nF

C844

50V

C

E

MO

50V

100nF

C811

1

A

2

B

Q802

2SC2412K-Q

B

BD805

BLM41PG600SN1L

MO

50V

10nF

C841

R809

1K

7

8

T867

1

CN807

slcon8p

1

2

3

4

5

6

SDA3

TUNERGND

AGND

IR

VIDEO_R

PC_5V

TUNERGND

TUNERGND

TUNER_CVBS

AGND

INVERT_GND

D4_L1

TV_VIDEO

POWER_KEY

CH-_OUT

KEY1

CH+_OUT

VIDEO_L

TUNERGND

SCL3

AGND

AGND

COMP1_L

D4_L

AGND

AGND

AGND

AGND

COMP1_R
D4_R

COMP1_CR

COMP1_Y

D4_L3

D4_L2

COMP1_CB

D4_ID

INVERT_GND

TUNERGND

TUNERGND

SIF

AFT

TUNERGND

TUNERGND

TUNERGND

INVERT_GND

AGND

AGND

AGND

D4_Y

D4_PB

D4_PR

AGND

AGND

AGND

PC_DDC_SCL_RX0

IDENT_PC

V_SYNC

PC_RED

PC_GREEN

H_SYNC

HP_R

PC_BLUE

LED_GRN

LED_RED

DGND

AGND

AGND

AGND

GND_AMP

INVERT_GND

ADJ_BRIGHT

SW_INVERTER

PC_DDC_SDA_TX0

PC_AUDIO_R

PC_AUDIO_L

HP_L

IDENT_HP

SVHS_C

SVHS_Y

VIDEO_CVBS

AGND

AGND

AGND

AGND

❈ 

This Document can not be used without Samsung’s authorization.

11-4 Schematic Diagram

Summary of Contents for LT17N23W

Page 1: ...TFT LCD TV MONITOR CONTENTS 1 Precautions 2 Product Specifications 3 Disassembly Reassembly 4 Alignment Adjustments 5 Troubleshooting 6 Exploded View Parts List 7 Parts List 8 Block Diagram 9 Wiring D...

Page 2: ...P1_Y NC 14V_INVERTER GND 14V_INVERTER NC GND COMP1_L GND D4_L GND NC GND COMP1_R GND D4_R GND PC_RED PC_GREEN PC_BLUE GND GND GND GND GND PC_5V IDENT_PC GND DDC_TXO H_SYNC DDC_RXO V_SYNC CN804 CN805 K...

Page 3: ...or main ass y BN91 00716A Yes No Does each proper DC 5V appear at L603 Change IC602 or main ass y BN91 00716A Yes No Does each proper DC 3 3V 33V appear at C618 C621 Change IC603 IC604 or main ass y B...

Page 4: ...5 Troubleshooting 5 2 LT17N23W WAVEFORMS 1 1 1 2 1 3 1 4...

Page 5: ...WAVEFORMS 1 5 1 6 1 7 5 Troubleshooting LT17N23W 5 3...

Page 6: ...l cable Yes No Does the signal appear at RA101 RA107 Change IC101 or main ass y BN91 00716A A Yes No Does the signal appear at RA514 RA519 Change main ass y BN91 00716A Yes No Does the signal appear a...

Page 7: ...5 Troubleshooting LT17N23W 5 5 WAVEFORMS 2 1 2 2 2 3 2 5 2 4...

Page 8: ...pear at RA201 RA204 Change IC305 or replace main board with new one Yes No Does the signal appear at X201 Change X201 or replace main board with new one Yes No 3 1 3 3 3 2 3 4 3 5 5 3 2 No Video Compo...

Page 9: ...5 Troubleshooting LT17N23W 5 7 WAVEFORMS 3 1 3 2 3 3 3 4 3 5...

Page 10: ...5 Troubleshooting 5 8 LT17N23W WAVEFORMS 3 6 3 7 3 8 3 9...

Page 11: ...C751 C752 AV C753 C754 D connector input C755 C766 comp1 Change IC703 or replace main board with new one Yes No Does the signal appear at C701 C704 Sound_R C724 C725 Sound_L Change IC701 or replace ca...

Page 12: ...essential 4 Avoid overload Excessive signal from a sweep generator might overload the front end of the TV When inserting signal markers do not allow the marker generator to distort test result 5 Conn...

Page 13: ...17N23W 4 2 Factory Mode Adjustments 4 2 1 Entering Factory Mode 1 To enter Service Mode Press the remote control keys in this sequence If you do not have Factory remote control If you have Factory rem...

Page 14: ...4 Alignments and Adjustments LT17N23W 4 3...

Page 15: ...4 Alignments and Adjustments 4 4 LT17N23W...

Page 16: ...nt adjustments are requried for RF DTV Component 1 D4 and PC modes 3 Optimum condition data for each mode are saved as default values Refer to Table 2 3 4 As the RF mode is applied with the same vlaue...

Page 17: ...720 Mode Pattern 36 PC Mode Model 21 1024 768 Mode Pattern 16 Picture 4 1 b Enter factory Calibration confirm the ADC data DTV PC Mode Only ADC default value Table 4 3 2 Adjust the white balance of RF...

Page 18: ...t and is not adjusted d Adjust the high light Refer to table 1 2 in adjustment position by mode Adjust red gain x and blue gain y to the color coordinates The green gain and sub Contrast Y are fixed t...

Page 19: ...4 Alignments and Adjustments 4 8 LT17N23W 4 3 4 PW565 The PW565 output data are fixed to the default and are not adjusted 4 3 5 VPC 3230 MAIN The Data are fixed to the default and are not adjusted...

Page 20: ...p 4 3 8 Check sum XXXX Displays the current check sum size of the MICOM Varies depending on program update 4 3 9 Service Adjustement Used where it is difficult to receive stereo sound Adjust the Pilot...

Page 21: ...8 Block Diagram This Document can not be used without Samsung s authorization LT17N23W 8 1...

Page 22: ...34 16V 22 R204 A5V C128 100nF C230 100pF 50V 16V C159 10uF R933 3 3UH BD102 SEN 6 SMS VDD 12 7 VIDEO Vin 13 1 Vss_1 11 Vss_2 1 16W 100 BOX 17 8 CSYNC GREEN 2 5 HIN LPF 9 18 RED RREF 10 15 SCK SDA 14 1...

Page 23: ...E R565 100 A B 2 C 3 T872 1 SGM32F1E104 2A FT504 1 R567 2 2K R566 2 2K 1 16W 47 R553 10K R550 1 16W 1K R951 1 16W 1nF C517 C527 100nF 1 2 3 4 5 6 7 8 C562 RA509 SUPLECODE C541 R505 0 T507 1 R534 0 1 2...

Page 24: ...nF C743 100nF C639 16V D603 SS24 BD606 1 A 2 B 16V 47uF C636 1 BLM41P600S 10uF C770 TP827 SUPLVAL BLM41P600S 1 A 2 B R739 1 16W 1K BD602 T531 1 100 R731 C755 C635 4 7uF 25V IC607 2 GND IN 1 OUT 3 100u...

Page 25: ...3 SIG_2 SIG_3 5 6 SIG_4 8 SIG_5 9 SIG_6 jack9p_b CN802 1 GND_1 GND_2 4 1 L805 N U91 1 T806 VIDEO_OUT VT 4 L816 N GND3 21 GND4 22 1 NC_1 9 NC_2 NC_3 10 NC_4 11 12 NC_5 NC_6 13 SCL 6 7 SDA 16 SUPLVAL 2...

Page 26: ...SIS BN91 00716A ASSY SHIELD BN91 00718A ASSY BOARD P AV JACK BN96 00503A ASSY BOX BN92 00927A ASSY LABEL BN92 00929A REMOCON BN59 00374A ASSY ACCESSORY BN96 00580Z BN96 00619W LT17N23W 7 1 Description...

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