Samsung 743N Service Manual
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Samsung 743N Service Manual

Lcd-monitor
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SERVICE
TFT-LCD Monitor
743N / 743B / 943N / 943B
Refer to the service manual in the GSPN (see the rear cover) for the more information.
LCD-Monitor
Chassis
: LS17MYA / LS17MYB
LS19MYA / LS19MYB
Model
: 743N / 743B
743NX
943N / 943B
Manual
1. Precautions
3. Disassembly and Reassemble
4. Troubleshooting
5. Exploded View & Part List
Contens

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Summary of Contents for Samsung 743N

  • Page 1 LCD-Monitor Chassis : LS17MYA / LS17MYB LS19MYA / LS19MYB Model : 743N / 743B 743NX 943N / 943B SERVICE Manual TFT-LCD Monitor Contens 1. Precautions 2. Product specifications 3. Disassembly and Reassemble 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram 7. Schematic Diagram 743N / 743B / 943N / 943B Refer to the service manual in the GSPN (see the rear cover) for the more information.

  • Page 2: Table Of Contents

    6-4. Cables ..........................6-3 7. Schematic Diagram ....................7-1 7-1. 743N/943N -Circuit Descriptions ..................7-1 7-2. 743N/943N Schematic Diagrams (Scaler Part) .............. 7-3 7-3. Schematic Diagrams (Power Flowchart) ................ 7-4 7-4. Schematic Diagrams (IP Board) ..................7-5 7-5. Schematic Diagrams (Main PBA) .................. 7-3...
  • Page 3 GSPN (Global Service Partner Network) Area Web Site North America http://service.samsungportal.com Latin America http://latin.samsungportal.com http://cis.samsungportal.com Europe http://europe.samsungportal.com China http://china.samsungportal.com Asia http://asia.samsungportal.com Mideast & Africa http://mea.samsungportal.com © 2007 Samsung Electronics Co.,Ltd. This Service Manual is a property of Samsung Electronics Co.,Ltd. All rights reserved. Any unauthorized use of Manual can be punished under applicable Printed in Korea International and/or domestic law. P/N: BN82-00294A-00...
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  • Page 24 5. Exploded View & Part List 5. Exploded View & Part List 5-1. SIMPLE STAND Exploded View...
  • Page 25 5. Exploded View & Part List 5-1-1. LS17MYAKF/XSF Parts List (743NX) Location No. Code No. Description & Specification Q’ty SA/SNA Remark T0003 BN96-06662B ASSY COVER P-FRONT;LS17MY(743NX),ABS HB, M0215 BN07-00491A LCD-PANEL;LTM170EU-L31-2,MCKINLEY,6bit H M0174 BN44-00124M IP BOARD;IP-35155A(MC),MCKINLEY 943B,3.2 M0081 6003-000115 SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SWRC M0081 6003-000115 SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SWRC M0081...
  • Page 26 5. Exploded View & Part List 5-2. LS17MYAKF/XSF Parts List (743NX) Service Bom (SA: SERVICE AVAILABLE, SNA: SERVICE NOT AVAILABLE) Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark LS17MYAKF/ 743NX,SAL1/S17B7-LMY,17,LCD-MO,CHINA M0002 BN90-01429C ASSY COVER REAR;LS17MYA,ANALOG_SIMPLE,AM S.N.A M0013 BN96-06482C ASSY COVER P-REAR;LS17MY,,HIPS HB,AM,BK2 ...3...
  • Page 27 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 Q601 0501-000445 TR-SMALL SIGNAL;KTC3875S-Y,NPN,150mW,SOT ..4 Q202 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 ..4 Q205 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 ..4 Q207 0501-002080 TR-SMALL SIGNAL;2SC2412K,NPN,200mW,SC-59 ..4 Q409 0505-001165 FET-SILICON;SI3443BDV,P,-20V,+-4.4A,65mo ..4 IC112...
  • Page 28 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000090 R-CHIP;10Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000102 R-CHIP;100Kohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110 2007-000309 R-CHIP;10ohm,5%,1/10W,TP,1608 ..4 R110...
  • Page 29 5. Exploded View & Part List Level Location No. Code No. Description & Specification Q’ty SA/SNA Remark ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120 2203-005005 C-CER,CHIP;100nF,10%,16V,X7R,1608 ..4 C120...
  • Page 30 6902-000110 BAG PE;LDPE,T0.05,W250,L400,TRP,28,2 S.N.A ...3 M0113 BH68-70455A CARD-TESTED GOODS;ALL (CHINA),SAMAUNG,CH S.N.A ...3 ACCESSORY BH75-00146B UNIT-11,WARRANTY;CHINA,-,ASS’Y-W/CARD,BH S.N.A ..4 BH68-00297E MANUAL FLYER-11,WARRANTY CARD;SAMSUNG BA S.N.A ..4 BH68-00297F MANUAL FLYER-10,WARRANTY CARD;ENVELOPE,S S.N.A ...3 ACCESSORY BN63-02368A CLOTH;LS07BTT,SUEDE,0.6,160,120 S.N.A ...3 M0215 BN96-06905A ASSY MANUAL P-IB+QSG;743N,743NX,943N,943 S.N.A...

  • Page 31: Safety Precautions

    1. Precautions 1. Precautions 1-1. Safety Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1-1. Warnings For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC power jack before servicing.

  • Page 32: Servicing Precautions

    1. Precautions 1-2. Servicing Precautions WARNING: An electrolytic capacitor installed with the wrong polarity might explode. Caution: Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. Note: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.

  • Page 33: Installation Precautions

    1. Precautions 1-4. Installation Precautions For safety reasons, more than two people are required for carrying the product. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.
  • Page 34 1. Precautions Memo...

  • Page 35: Product Specifications

    743N / 743B / 943N / 943B Feature Panel Specifications: 300 cd/m2, 5 ms, CR 1000:1, 170/160 (CR>10) � DPMS : <1W � 743N / 943N : TCO99, 743B / 943B : TCO03 � Off-Timer function for reducing standby power usages � Windows Vista authentication �...
  • Page 36 2. Product specifications Specifications Item Description Weight -19” SIMPLE STAND 3.8 kg / 4.95 kg (Set/Package) HAS STAND 4.85 kg / 6.5 kg Environmental Considerations Operating Temperature: 10˚C ~ 50˚C(50˚F ~ 122˚F) Operating Humidity : 10% ~ 90% Operating Temperature: -20˚C ~ 45˚C(-4˚F ~ 113˚F) Operating Humidity: 5% ~ 90% Note: Designs and specifications are subject to change without prior notice.

  • Page 37: Spec Comparison To The Old Models

    2. Product specifications 2-2. Spec Comparison to the Old Models Mckinley HAYDN Model (743N / 743B / 943N / 943B) (740B) Design Size 17” & 19” 17” Resolution 1280 x 1024 1280 x 1024 743N / 943N : Analog Input Analog / DVI 743B / 943B : Analog &...

  • Page 38: Accessories (Sold Separately)

    2-3. Accessories Product Description Ccde. No Remark Quick Setup Guide BP68-00274B Warranty Card BH68-00633B (Not available in all locations) Samsung Electronics User’s Guide, Service center Monitor Driver, BN59-00585A Natural Color Pro Software D-Sub(15 Pin) Cable BN39-00244G 743N/943N Power Cord 3903-000042 743B/943B 2-4.

  • Page 39: Schematic Diagram

    7. Schematic Diagram 7. Schematic Diagram 7-1. 743N/943N -Circuit Descriptions Location Function Remark Scaler Besides the ADC, LVDS, and scaling part, an MCU is embedded as well. All of 743N / 943N : IC200 them are integrated into one chip.
  • Page 40 7. Schematic Diagram 7-1-1. 743B/943B -Circuit Descriptions Location Function Remark Scaler Besides the ADC, LVDS, and scaling part, an MCU is embedded as well. All of 743B / 943B : IC200 them are integrated into one chip. SE756M-LF Flash Stores the MCU program embedded in the scaler. It is of a flash type and Memory MX25L1005 rewritable.
  • Page 41 7. Schematic Diagram 7-2. 743N/943N Schematic Diagrams (Scaler Part) SE717M-LF 7-2-1. 743B/943B Schematic Diagrams (Scaler Part)

  • Page 42: Schematic Diagrams (Power Flowchart)

    7. Schematic Diagram 7-3. Schematic Diagrams (Power Flowchart)

  • Page 43: Schematic Diagrams (Ip Board)

    7. Schematic Diagram 7-4. Schematic Diagrams (IP Board) SMPS Part ...
  • Page 44 7. Schematic Diagram Inverter Part ...

  • Page 45: Schematic Diagrams (Main Pba)

    7. Schematic Diagrams 7-5. Schematic Diagrams (Main PBA) This Document can not be used without Samsungs authorization. +5V_PANEL +5V_IP R236 +5V_IP CN400 R271 R218 10KOHM 3KOHM +1.8V 10KOHM +5V_IP BL_ADJ_ANALOG R270 +5V_PANEL +3.3V Q204 2KOHM MGND1 AGND R229 KSC1623-Y BL_ADJ_PWM C207 C208 KSC1623-Y...
  • Page 46 7. Schematic Diagrams Memo...

  • Page 47: Wiring Diagram

    6. Wiring Diagram 6. Wiring Diagram 6-1. Wiring Diagram - Main Board LVDS for Panel Lamp wire for Panel VGA Input DVI Input...

  • Page 48: Wiring Diagram - Ip Board

    6. Wiring Diagram 6-2. Wiring Diagram - IP Board LVDS Connector (Connect to Panel) 3708-001150 EEPROM Flash memory 3701-001219 3701-001173 Function Connector (Connect to IP-Board) RGB Connector DVI Connector (PConnect to PC) (Connect to PC)

  • Page 49: Connector Functions

    6. Wiring Diagram 6-3. Connector Functions Connector Functions CN102 DVI signal input termina (used on 743B / 943B only) * When a problem occurs : The No DVI output error may occur. CN1 ~ CN4 In Transmits the lamp current (6mA ~ 7mA) generated in the inverter to the lamp of the panel. * When a problem occurs: The Blank Screen error may occur.
  • Page 50 6. Wiring Diagram Memo...

This manual is also suitable for:

743b743nx943n943b

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