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Samsung LDO19WS Service Manual

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SERVICE
LCD Monitor
LCD-Monitor
Chassis
Model
Manual
Fashion Feature
- MFM Model
- VCT49xy
- W/W model
- High Contrast Ratio(700:1)
- High Luminance(300cd/m2)
LDO19WS
LDO19CS
940MW
940MG

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Table of Contents

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   Summary of Contents for Samsung LDO19WS

  • Page 1: Service Manual

    LCD-Monitor Chassis LDO19WS LDO19CS Model 940MW 940MG SERVICE Manual LCD Monitor Fashion Feature - MFM Model - VCT49xy - W/W model - High Contrast Ratio(700:1) - High Luminance(300cd/m2)
  • Page 2 Copyright Trademarks Samsung is the registered trademark of Samsung ©2005 by Samsung Electronics Co., Ltd. Electronics Co., Ltd. All rights reserved. LDO19WS and MacMaster Cable Adapter are This manual may not, in whole or in part, be copied, trademarks of Samsung Electronics Co., Ltd.
  • Page 3: Table Of Contents

    Contents . Precautions ………………………………………………………………………………………………………………………………………1 1-1. Safety Precautions ………………………………………………………………………………………………………………………1-1 1-2. Servicing Precautions ……………………………………………………………………………………………………………………1-2 1-3. Static Electricity Precautions ……………………………………………………………………………………………………………1-2 1-4. Install Precautions …………………………………………………………………………………………………………………………1-3 . Product specifications …………………………………………………………………………………………………………………………2 2-1. Fashion Feature ………………………………………………………………………………………………………………………… 2-1 2-2. Specifications Comparison to the Old Model …………………………………………………………………………………………2-1 2-3. Specifications ………………………………………………………………………………………………………………………………2-2 2-4.
  • Page 4 Contents 0. Operating Instructions and Installation ……………………………………………………………………………………………………1 10-1. Front …………………………………………………………………………………………………………………………………… 10-1 10-2. Rear …………………………………………………………………………………………………………………………………… 10-2 10-3. Remote Control ……………………………………………………………………………………………………………………… 10-5 1. Disassembly and Reassembly ………………………………………………………………………………………………………………1 11-1. Disassembly …………………………………………………………………………………………………………………………… 11-1 11-3. Reassembly …………………………………………………………………………………………………………………………… 11-3 2. PCB Diagram …………………………………………………………………………………………………………………………………1 13. C ircuit Descriptions ……………………………………………………………………………………………………………………………1 13-1.
  • Page 5 Samsung Electronics Co.,Ltd. -This Service Manual is a property of Samsung 416, Maetan-3Dong, Yeongtong-Gu, Suwon City, Electronics Co., Ltd. Gyeonggi-Do, Korea, 443-742 Any unauthorized use of Manual can be punished Printed in Korea under applicable International and/or domestic P/N : BN82-00125C-01 law.
  • Page 6: Operating Instructions And Installation

    10 Operating Instructions and Installation 10 Operating Instructions and Installation 10-1 Front 1. SOURCE Switches from PC Mode to Video mode. Moves from one menu item to another horizontally Changing the source is allowed only in external or adjusts selected menu values. devices that are connected to the monitor at the Adjusts the audio volume.
  • Page 7: Rear

    10 Operating Instructions and Installation 10-2 Rear 1. POWER Power terminal Connect the power cord for your monitor to the POWER on the back of the monitor. This product may be used with 100 ~ 240VAC (+/- 10%). 2.DVI/PC IN 1) DVI(HDCP) : Connect the DVI cable to the DVI(HDCP) port on the back of your monitor.
  • Page 8 10 Operating Instructions and Installation 3. EXT(RGB) External device terminal EXT(RGB) is mainly used in Europe. As for EXT(RGB) port of the monitor, it makes TV or Video signal input and output. 4. COMPONENT IN 1) R - AUDIO - L : DVD/DTV sound input terminal (left/right) 2) PR, PB,Y : DVD/DTV video input terminal(PR, PB,Y)
  • Page 9 10 Operating Instructions and Installation 6. AV connection terminal : Headphone sound output terminal 2) S-VIDEO : External device (S-video) input terminal 3) VIDEO : External device (video) input terminal 4) R - AUDIO - L : External device sound input terminal 7.
  • Page 10: Remote Control

    10 Operating Instructions and Installation 10-3 Remote Control 1. POWER 2. Number button 3. +100, -/-- 4. - 5. MUTE 6. TTX/MIX 7. MENU 8. ENTER 9. CH/P 10. SOURCE 11. INFO 12. EXIT 13. Up-Down Left-Right buttons 14. AUTO 15.
  • Page 11 10 Operating Instructions and Installation 1. POWER 14. AUTO - Available in PC Mode Only Use this button to turn the monitor on and off. Adjusts the screen display automatically. 2. Number button 15. P.MODE, M/B (MagicBright¢â) Selects TV channels in the TV mode. When you press this button, current mode is You may use this button in PIP mode as well.
  • Page 12 10 Operating Instructions and Installation 21. PRE-CH This button is used to return to the immediately previous channel. 22. SOURCE - Available in PIP Mode Selects the Video source. 23. SIZE - Available in PIP Mode You can switch the PIP picture size. 24.
  • Page 13 10 Operating Instructions and Installation Memo 10-8...
  • Page 14: Disassembly And Reassembly

    11 Disassembly and Reassembly 11 Disassembly and Reassembly This section of the service manual describes the disassembly and reassembly procedures for the LDO19WS TFT-LCD monitors. WARNING: This monitor contains electrostatically sensitive devices. Use caution when handling these components. 11-1 Disassembly Cautions: 1.
  • Page 15 11 Disassembly and Reassembly 3. Remove 4 screws from the shield-cover. 4. Remove 2 screws from the side connector. Lift up the shield-cover. 5. Remove 9 screws from the boards. Remove 9 screws from the BRKT. 11-2...
  • Page 16: Reassembly

    11 Disassembly and Reassembly 6. Lift up the Panel-BRKT. 11-2 Reassembly -Reassembly procedures are in the reverse order of disassembly procedures. 11-3...
  • Page 17 11 Disassembly and Reassembly Memo 11-4...
  • Page 18: Pcb Diagram

    12 PCB Layout 12 PCB Diagram 12 PCB Diagram 12-1...
  • Page 19 12 PCB Layout 12-2...
  • Page 20: C C Ircuit Descriptions

    13 Circuit Descriptions 13 Circuit Descriptions 13-1 Block description 13-1...
  • Page 21 13 Circuit Descriptions 13-1-1 VCT49XYI (IC700) 13-1-2 VSP Block : CVBS, S-Video, RF(IF), SCART (RGB) Convert 656 format to video input and transfer to MST51510 13-2...
  • Page 22 13 Circuit Descriptions 13-1-3 MSP Block : PC, Sound L/R, SCART, Receive audio input and send out to AMP. 13-1-4 SE6181(IC301) - Scaler(MFM) - Support Digital Video Input - Internal LVDS IC - Support PIP - OSD controller engine 13-3...
  • Page 23 13 Circuit Descriptions 13-1-5 Connect a Function Board to a Main Board 13-4...
  • Page 24: Reference Infomation

    14 Reference Infomation 14 Reference Infomation 14-1 Technical Terms - TFT-LCD - Image Lock This means "Fineness adjustment " in LCD (Thin film Transistor Liquid Crystal Display) ADC(Analog to Digital Converter) Monitor, the features are "Fine" and "Coarse" This is a circuit that converts from analog signal to digital signals.
  • Page 25 14 Reference Infomation - Dot Pitch - DTV The image on a monitor is composed of red, green Broadcasting (Digital TV Broadcasting) and blue dots. The closer the dots, the higher the An enhanced broadcasting technology to process resolution. The distance between two dots of the digital video signals using a set-top box, which same color is called the 'Dot Pitch'.
  • Page 26 - Channel Fine Tuning This feature allows the viewer to fine-tune the TV channel to obtain the best viewing conditions. The Samsung LCD TV has both automatic and manual channel fine-tuning features to enable the viewer to adjust their desired settings.
  • Page 27: Connecting Your Monitor

    14 Reference Infomation 14-2 Connecting the Monitor - Connecting to a monitor Connect the power cord for your monitor to the POWER on the back of the monitor. Plug the power cord for the monitor into a nearby outlet. 2-1. Using the D-sub (Analog) connector on the video card. Connect the signal cable to the 15-pin, RGB port on the back of your monitor.
  • Page 28: Connecting To Others Devices

    14 Reference Infomation 14-3 Connecting to Other devices - Connecting AV Devices Input devices such as DVD, VCR or Camcorder are connected to the VIDEO or S-VIDEO terminal of the monitor using the Video or S-Video cable. * S-Video, Video cable and EXT(RGB) cable is optional. Connect the Audio (R) and Audio (L) terminals of a DVD, VCR or Camcorders to the monitor's R and L audio input terminals using audio cables.
  • Page 29: Connecting Tv

    14 Reference Infomation - Connecting TV Connect the CATV or antenna coaxial cable to the Antenna terminal on the rear of the monitor. You need to use a coaxial antenna cable. - When using an interior antenna terminal: Check the antenna terminal on the wall first and connect the antenna cable. - When using an outdoor antenna: If you are using an outdoor antenna, use a professional for installation if possible.
  • Page 30: Attaching A Base

    14 Reference Infomation - Connecting Headphone Connect your headphones to the Headphone connection terminal. -Attaching a Base * This monitor accepts a 100 mm x 100 mm VESA-compliant mounting interface pad. A. Monitor B. Mounting interface pad (Sold separately) Turn off your monitor and unplug its power cord. Lay the LCD monitor face-down on a flat surface with a cushion beneath it to protect the screen.
  • Page 31: Pin Assignment

    14 Reference Infomation 14-4 Pin Assignments Sync 15-Pin Signal Cable Connector Type Separate Composite Pin No. Green Green Blue Blue GND (DDC Return) GND (DDC Return) GND-Red GND-Red GND-Green GND-Green GND-Blue GND-Blue DDC +5V DDC +5V CHK D_SUB CHK D_SUB DDC Data DDC Data Horizontal sync...
  • Page 32: Timing Chart

    14 Reference Infomation 14-5 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computer- generated video signals. Mode VESA VGA2/ VGA3/ 640/75 Hz 800/60 Hz 800/75 Hz 1024/60Hz 1024/75Hz 1280/60Hz 1280/75Hz 1440/60Hz 1440/75Hz...
  • Page 33: Preset Timing Modes

    14 Reference Infomation 14-6 Preset Timing Modes -If the signal transferred from the computer is the same as the following Preset Timing Modes, the screen will be adjusted automatically. However, if the signal differs, the screen may go blank while the power LED is on.
  • Page 34: Panel Description

    14 Reference Infomation 14-7 Panel Description Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks LT140X1-002 BN07-00004A BN68-00239H LT150XS-L01 BN07-00009A LT150XS-L01-B BN07-00022A LTM150XS-L02 BN07-00005A LT181E2-132 BN07-00001A LT150XS-T01 BN07-00010A LTM181E3-132 BN07-00019A LT170E2-131 BN07-10001D LT181E2-131 BN07-10001E LTM170E4-L01 BN07-00018A LTM240W1-L01 BN07-00015A LTM213U3-L01 BN07-00016A LTM150XH-L01 BN07-00026A LTM150XH-L03 BN07-00027A LTM150XS-L01...
  • Page 35 14 Reference Infomation Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks LTA400W1-L01 BN07-00109A PANEL of AMLCD 40" TV LTM153W1-L01 BN07-00110A Color coordinates change 0.280/0.290, 10000k & ZPD Panel LTM150XH-L06 BN07-00111A Color coordinates change 0.280/0.290, 10000k & ZPD Panel LTM170W1-L01 BN07-00112A Color coordinates change 0.280/0.290, 10000k & ZPD Panel LTM170EH-L05 BN07-00113A Color coordinates change 0.280/0.290, 10000k &...
  • Page 36 14 Reference Infomation Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks LTA260W2-L01 BN07-00185A AMLCD 26" 16:9 new Panel LTM240M1-L01 BN07-00195A 24" panel with high brightness deveiopment LTA400W2-L01 BN07-00186A AMLCD 40" 16:9 new Panel LTM150XO-L01 BN07-00197A AMLCD 15" XO-L01 Pb free panel code LTM150XO-L01 BN07-00197B AMLCD 15"...
  • Page 37 14 Reference Infomation Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks HANNSTAR HSD150MX17-A BN07-00226A Hannstar 15" slim panel ZPD code derivation TORISAN TM150XG-22L03(A) BN07-00021A TORISAN TM150XG-26L06 BN07-00042A TORISAN TM181SX-76N01 BN07-00048A TORISAN TM150XG-26L06 BN07-00059A 15" XGA TN MODE(ZPD) TORISAN TM290WX-71N31 BN07-00063A "RS24NS (TORISAN 29"" NEW PANEL)" TORISAN TM396WX-71N31 BN07-00064A...
  • Page 38 14 Reference Infomation Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks ACER M170EN05 BN07-00102A ZPD Panel code ACER M190EN02 BN07-00170A "AU Monitor 19"" new panel development (P19-1S)" ACER M190EN02 BN07-00170B "AU 19"" ZPD code derivation (ZPD)" ACER M170EN06 BN07-00171A "AU Monitor 17"" New panel development " ACER T260XW01 BN07-00163A...
  • Page 39 14 Reference Infomation Memo 14-16...
  • Page 40: Electrical Parts List

    6 Electrical Parts List 6 Electrical Parts List -You can search for updated part codes through ITSELF web site. URL : http://itself.sec.samsung.co.kr/ 6-1 LS19DOCSS/EDC Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA LS19DOCSS/EDC 940MW,SGN4/S19AV-LDO,19,LCD-MO,NETHERLAN M0001 BN90-00803L ASSY COVER FRONT;LS19DOCSS/EDC,940MW,TCO...
  • Page 41 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 D124 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D125 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D126 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D130 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D700 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D701 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D702 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4...
  • Page 42 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 IC104 0801-002899 IC-CMOS LOGIC;CD4069UBC,INVERTER,SOIC,14 ..4 IC104 0802-001025 IC-CMOS LOGIC;74LCX374,D FILP-FLOP,TSSOP ..4 IC112 1103-000129 IC-EEPROM;24C02,2Kbit,256x8Bit,SOP,8P,5x ..4 IC112 1103-000129 IC-EEPROM;24C02,2Kbit,256x8Bit,SOP,8P,5x ..4 IC112 1103-001279 IC-EEPROM;24C32,32Kbit,4Kx8Bit,SOP,8P,5x ..4 IC113 1105-001284 IC-DRAM;636165,-,16Mbit,1Mx16Bit,TSOP,50 ..4 IC113...
  • Page 43 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R430 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R431 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R432 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R433 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R434 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R435 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R436 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4...
  • Page 44 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R729 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R730 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R740 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R741 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R742 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R743 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R744 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4...
  • Page 45 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R702 2007-000402 R-CHIP;150ohm,5%,1/10W,TP,1608 ..4 R167 2007-000458 R-CHIP;18Kohm,5%,1/10W,TP,1608 ..4 R711 2007-000659 R-CHIP;27ohm,5%,1/10W,TP,1608 ..4 R136 2007-000869 R-CHIP;4.7Kohm,1%,1/10W,TP,1608 ..4 R428 2007-000869 R-CHIP;4.7Kohm,1%,1/10W,TP,1608 ..4 R429 2007-000869 R-CHIP;4.7Kohm,1%,1/10W,TP,1608 ..4 R721 2007-000869 R-CHIP;4.7Kohm,1%,1/10W,TP,1608 ..4...
  • Page 46 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C320 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C329 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C351 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C403 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C406 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C407 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C413 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4...
  • Page 47 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C326 2203-000972 C-CER,CHIP;47nF,10%,16V,X7R,1608 ..4 C122 2203-001071 C-CER,CHIP;0.056nF,5%,50V,C0G,1608 ..4 C727 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C729 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C736 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C738 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C744 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4...
  • Page 48 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C346 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C347 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C348 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C349 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C350 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C411 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C417 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4...
  • Page 49 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C448 2402-001165 C-AL,SMD;4.7UF,20%,35V,WT,TP,4X5.8MM ..4 C449 2402-001165 C-AL,SMD;4.7UF,20%,35V,WT,TP,4X5.8MM ..4 C450 2402-001165 C-AL,SMD;4.7UF,20%,35V,WT,TP,4X5.8MM ..4 C454 2402-001165 C-AL,SMD;4.7UF,20%,35V,WT,TP,4X5.8MM ..4 C746 2402-001165 C-AL,SMD;4.7UF,20%,35V,WT,TP,4X5.8MM ..4 C462 2402-001178 C-AL,SMD;10uF,20%,16V,WT,TP,4.3x4.3x5.8m ..4 C434 2402-001183 C-AL,SMD;22UF,20%,16V,WT,TP,5.3X5.3X6MM ..4...
  • Page 50 BAG PE;T0.05,W250,L400,TRP,28,2,- S.N.A ...3 ACCESSORY BH68-70448A CARD-01;TFT LCD,SRC,RUSSIA,S/W,120,W210* S.N.A ...3 T0128 BN39-00061B CBF SIGNAL-STEREO;MH15NS,1P,UL2851#26,20 ...3 T0059 BN68-00907A MANUAL FLYER-CARD;COMM,SAMSUNG,18 LANG,E S.N.A ...3 M0215 BN96-02318D ASSY MANUAL P-IB+QSG;LS19DOF, 940MW,Sync S.N.A ..4 BN59-00480D S/W DRIVER-03,IB;COMM,W/W,SYNCMASTER,W/W S.N.A ..4 QUICK_SETU BN68-00952A MANUAL FLYER-01,QSG;Dvorak 940MW W/W QSG S.N.A...
  • Page 51 6 Electrical Parts List 6-2 LS19DOCSS/XAA Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA LS19DOCSS/XAA 940MW,SGN4/S19AV-LDO,19,LCD-MO,UNITED ST M0001 BN90-00803L ASSY COVER FRONT;LS19DOCSS/EDC,940MW,TCO S.N.A M0081 6003-000275 SCREW-TAPTITE;BH,+,-,B,M3,L10,ZPC(BLK),S S.N.A T0003 BN96-03793A ASSY COVER P-FRONT;LS19DOC,ABS HB,GR70(S ...3 M0081 6003-000275 SCREW-TAPTITE;BH,+,-,B,M3,L10,ZPC(BLK),S S.N.A ...3...
  • Page 52 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 D701 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D702 0401-001056 DIODE-SWITCHING;MMBD4148SE,100V,200mA,SO ..4 D400 0402-000553 DIODE-SCHOTTKY;SS24/B240,40V,2000mA,DO-2 ..4 D102 0403-000579 DIODE-ZENER;BZX84C5V1,4.8-5.4V,200mW,SOT ..4 D108 0403-000579 DIODE-ZENER;BZX84C5V1,4.8-5.4V,200mW,SOT ..4 D109 0403-000579 DIODE-ZENER;BZX84C5V1,4.8-5.4V,200mW,SOT ..4 D110 0403-000579 DIODE-ZENER;BZX84C5V1,4.8-5.4V,200mW,SOT ..4...
  • Page 53 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 IC113 1105-001284 IC-DRAM;636165,-,16Mbit,1Mx16Bit,TSOP,50 ..4 IC113 1105-001284 IC-DRAM;636165,-,16Mbit,1Mx16Bit,TSOP,50 ..4 T0085 1201-001980 IC-AUDIO AMP;TDA7266D,SO,20P,16X11.1MM,- ..4 T0085 1201-002136 IC-AUDIO AMP;LM4810,MSOP,8P,3x3mm,DUAL,- ..4 IC705 1203-001212 IC-VOL. DETECTOR;7029,SOT-89,3P,-,PLASTI ..4 IC704 1203-001559 IC-RESET;DS1834A,SOIC,8P,150MIL,PLASTIC, ..4 T0087...
  • Page 54 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R435 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R436 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R437 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R438 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R439 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R440 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4 R441 2007-000074 R-CHIP;100ohm,5%,1/10W,TP,1608 ..4...
  • Page 55 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R743 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R744 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R745 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R746 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R747 2007-000084 R-CHIP;4.7Kohm,5%,1/10W,TP,1608 ..4 R713 2007-000087 R-CHIP;6.8Kohm,5%,1/10W,TP,1608 ..4 R714 2007-000087 R-CHIP;6.8Kohm,5%,1/10W,TP,1608 ..4...
  • Page 56 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 R429 2007-000869 R-CHIP;4.7Kohm,1%,1/10W,TP,1608 ..4 R721 2007-000869 R-CHIP;4.7Kohm,1%,1/10W,TP,1608 ..4 R722 2007-000869 R-CHIP;4.7Kohm,1%,1/10W,TP,1608 ..4 R712 2007-000882 R-CHIP;4.7ohm,5%,1/10W,TP,1608 ..4 R153 2007-001002 R-CHIP;510ohm,5%,1/10W,TP,1608 ..4 R710 2007-001002 R-CHIP;510ohm,5%,1/10W,TP,1608 ..4 R708 2007-001134 R-CHIP;68ohm,5%,1/10W,TP,1608 ..4...
  • Page 57 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C407 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C413 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C414 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C416 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C422 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C423 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4 C426 2203-000189 C-CER,CHIP;100nF,+80-20%,25V,Y5V,1608 ..4...
  • Page 58 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C738 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C744 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C753 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C756 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C759 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C764 2203-001656 C-CER,CHIP;0.47nF,5%,50V,NP0,1608 ..4 C402 2203-002793 C-CER,CHIP;1000nF,+80-20%,25V,Y5V,2012 ..4...
  • Page 59 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C411 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C417 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C418 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C424 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C425 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C461 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4 C700 2203-005065 C-CER,CHIP;1000nF,+80-20%,10V,Y5V,1608 ..4...
  • Page 60 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ..4 C462 2402-001178 C-AL,SMD;10uF,20%,16V,WT,TP,4.3x4.3x5.8m ..4 C434 2402-001183 C-AL,SMD;22UF,20%,16V,WT,TP,5.3X5.3X6MM ..4 C435 2402-001183 C-AL,SMD;22UF,20%,16V,WT,TP,5.3X5.3X6MM ..4 C725 2402-001222 C-AL,SMD;3.3UF,20%,50V,HR,TP,4.3X4.3X5.8 ..4 T0052 2703-000222 INDUCTOR-SMD;560nH,10%,2012 ..4 T0052 2703-001334 INDUCTOR-SMD;1.5uH,10%,2012 ..4 T0052 2703-001334 INDUCTOR-SMD;1.5uH,10%,2012 ..4...
  • Page 61 6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA 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 6003-000115 SCREW-TAPTITE;BH,+,B,M3,L6,ZPC(BLK),SWRC M0081 6003-000275 SCREW-TAPTITE;BH,+,-,B,M3,L10,ZPC(BLK),S S.N.A M0081 6003-001439 SCREW-TAPTITE;BH,+,S,M4,L8,ZPC(YEL) S.N.A M2893 BN39-00666C LEAD CONNECTOR-LVDS;DVORAK,UL1571#30,30P BN61-01997A HOLDER-JACK;DV19WS,ABS HB,T2.0 S.N.A M0107 BN63-02132A SHIELD-COVER;DV19WS,SECC,T0.8 S.N.A...
  • Page 62: Fashion Feature

    2-1 Fashion Feature - MFM Model - VCT49xy - W/W model - High Contrast Ratio(700:1) - High Luminance(300cd/m2) 2-2 Specifications Comparison to the Old Model Model LDO19WS / LDO19CS MH17ES Area World Wide China / East-South Asia Panel LTM190M2-L01 EU-L21...
  • Page 63: Specifications

    2 Product Specifications 2-3 Specifications Item Description LCD Panel TFT-LCD panel, RGB vertical stripe, normaly white, 19-Inch viewable, 0.2835mm pixel pitch Scanning Frequency 30 kHz ~ 81 kHz(Automatic) Display Colors 16.7 Million colors Maximum Resolution Horizontal:1440 Pixels Vertical: 900 Pixels Input Video Signal Analog, 0.7 Vp-p ±...
  • Page 64: Option Specification

    2 Product Specifications 2-4 Option Specification Item Item Name CODE.NO Remark Quick Setup Guide BH68-00376L Warranty Card BH68-70438A (Not available in all locations) User's Guide, Monitor BN59-00480D (940MW) Driver, Natural Color BN59-00480W (940MG) software D-Sub(15 Pin) BN39-00244B Cable Audio Cable BN39-00061B Power Cord 3903-000042...
  • Page 65 2 Product Specifications Memo...
  • Page 66 5 Exploded View & Parts List 5 Exploded View and Parts List -You can search for updated part codes through ITSELF web site. URL : http://itself. sec. samsung.co.kr 5-1 LS19DOCSS/EDC, LS19DOCSS/XAA Exploded View M0013 M0107 M0174 M0017 M0215 T0003 M0013...
  • Page 67 5 Exploded View & Parts List 5-2 LS19DOCSS/EDC Parts List Location.No CODE-NO SPECIFICATION & DESCRIPTION Q'TY SA/SNA REMARK T0003 BN96-03793A ASSY COVER P-FRONT;LS19DOC,ABS HB,GR70(S M0215 BN07-00280A LCD-PANEL;LTM190M2-L01-D016,Dvorak,6BIT BN96-02505A ASSY SHIELD P-PANEL;LS19DOW,SECC,T0.8,AM S.N.A M0017 BN91-00957F ASSY CHASSIS-STB;LS19DOWSS/EDC,DO19WS M0174 BN44-00116B IP BOARD;48135T(WN),DVORAK 19",3.2 ~4.8m S.N.A M0107 BN63-02132A...
  • Page 68: Block Diagram

    7 Block Diagrams 7 Block Diagram...
  • Page 69 7 Block Diagrams...
  • Page 70: Alignments And Adjustments

    3 Alignments and Adjustments 3 Alignments and Adjustments This section describes to adjust LCD monitor after replacing EEPROM, Main PBA or Panel. 3-1 Program Upgrade Change MICOM : If the similer happenings occur, EEPROM can be changed -. EX1) When screen appears but remote control and function key aren't working -.
  • Page 71: Ddc Jig Installation

    3 Alignments and Adjustments 3-2 DDC JIG installation Connect DDC JIG. PC parallel port ----- DDC JIG ----- Monitor D_sub cable JIG cable...
  • Page 72: Edid Installation With Windows Program

    3 Alignments and Adjustments 3-3 EDID Installation with Windows Program 1. Execute "WinDDC.exe" 2. Click "Sys Config" Select "Station : Write station" Check "Serial No and Week : Don't change" Click "Save" 3. Click "Open" icon. Select "Connected Port #1" and Next "OK". * File Name - SM940MWA.DDC : Analog - SM940MWD.DDC : Digital Press enter key on your keyboard.
  • Page 73: Factory Mode Adjustments

    3 Alignments and Adjustments 3-4 Factory Mode Adjustments 3-4-1 Factory Mode Admission - PAL : Power off Info Menu Power on - NTC : Power off MUTE Power on 3-4-2 Service Mode Menu -. DDP Part...
  • Page 74 3 Alignments and Adjustments -. MSTAR Part -. Adjust , PC/DTV Auto Color...
  • Page 75 3 Alignments and Adjustments -. Pre-Setting, Options , Checksum -. Panel Information , Reset...
  • Page 76: Troubleshooting

    4 Troubleshooting 4 Troubleshooting 4-1 No Power Does DC 13V, 5V Check Inverter/Adaptor Board appear at CN400? Does DC 3.3V Check circuits related Appear at FT412? to IC405. Does DC 3.3V Check circuits related to Appear at FT414? IC407. Check IC702(VCTI-F2), IC704, and IC301(SE6181LA).
  • Page 77 4 Troubleshooting 4-2 No Video (PC Signal) Power Indicator is green Does a signal appear at C103,C104 and C105 Check circutis relatedCN101. (R,G,B input?) Does a signal appear at Check circuits related CN101. R108 and R110(H/V Sync)? Does a signal appear at Check circuits related IC031.
  • Page 78 4 Troubleshooting WAVEFORMS...
  • Page 79: No Picture (tv)

    4 Troubleshooting 4-3 No Picture (TV) Does a signal appear at Check TU700(TUNER). PIN 2 of FT702 (X6966)? Does a signal appear at Check the circuits related to PIN71,72,73,74,75,78,79,80 IC702. of IC702? Does a signal appear at Check IC301. PIN 1~30 of CN300? Replace LCD Panel.
  • Page 80 4 Troubleshooting WAVEFORMS...
  • Page 81: No Picture (video/s-video/scart)

    4 Troubleshooting 4-4 No Picture (Video/S-VIDEO/SCART ) Power Indicator is off. Lamp on, no picture. Dose the signal appear at Check a A/V cable and R732,R733,R734 video signal. Does the signal appear at Check a connection harness. PIN(71:80) of IC703? Does the digital data Check a IC703.
  • Page 82 4 Troubleshooting WAVEFORMS...
  • Page 83: No Picture (component)

    4 Troubleshooting 4-5 No Picture (COMPONENT) Power Indicator is off. Lamp on, no picture. Does the signal appear at Check a A/V cable and video signal. PIN(31:37) of IC301? Does the digital data appear at output of LVDS Check a connection harness. (RA301~RA303)? Check a LVDS cable? Check a IC301.
  • Page 84 4 Troubleshooting WAVEFORMS...
  • Page 85: No Sound (tv)

    4 Troubleshooting 4-6 No Sound (TV) Does a signal appear at PIN 1,2 of FT702 Check Tuner. (X6966M)? Does a signal appear at Check the circuits relevant to IC702. R454 and R458? Does a signal appear at Check the circuits relevant PIN 2,5,9,16 of IC409 to IC409.
  • Page 86 4 Troubleshooting WAVEFORMS 4-11...
  • Page 87: No Sound (component)

    4 Troubleshooting 4-7 No Sound (COMPONENT) Does a signal appear at Check a connection harness. R442 and R445? Does a signal appear at PIN Check the circuits relevant 123,124of IC702. to IC702. Does a signal appear at Check the circuits relevant PIN 2,5,9,16 of IC409 to IC409.
  • Page 88 4 Troubleshooting WAVEFORMS 4-13...
  • Page 89 4 Troubleshooting Memo 4-14...
  • Page 90: Wiring Diagram

    8 Wiring Diagram 8 Wiring Diagram...
  • Page 91 8 Wiring Diagram Memo...
  • Page 92 1 Precautions 1 Precautions Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock. 1-1 Safety Precautions 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 93 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 94: Installation Precautions

    1 Precautions 1-4 Installation Precautions 1. For safety reasons, more than two people are 6. Keep the antenna far away from any high-voltage required for carrying the product. cables and install it firmly. Contact with the high- voltage cable or the antenna falling over may 2.
  • Page 95 1 Precautions Memo...
  • Page 96: S S Chematic Diagrams

    9 Schematic Diagrams 9 Schematic Diagrams - This Document can not be used without Samsung s authorization.
  • Page 97 9 Schematic Diagrams...
  • Page 98 9 Schematic Diagrams...
  • Page 99 9 Schematic Diagrams...

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