Samsung 940MW - SyncMaster - 19" LCD Monitor Service Manual Download

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SERVICE

Manual

LCD Monitor

Fashion Feature

LCD-Monitor

Chassis

LDO19WS

LDO19CS

Model

940MW

940MG

- MFM Model

- VCT49xy

- W/W model

- High Contrast Ratio(700:1)

- High Luminance(300cd/m2)

Summary of Contents for 940MW - SyncMaster - 19" LCD Monitor

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

Page 2: ...out prior written permission of Samsung Electronics Co Ltd LDO19WS Service Manual First edition September 2005 Printed in Korea Trademarks Samsung is the registered trademark of Samsung Electronics Co Ltd LDO19WS and MacMaster Cable Adapter are trademarks of Samsung Electronics Co Ltd Macintosh Power Macintosh are trademarks of Apple Computer Inc All other trademarks are the property of their resp...

Page 3: ...and Adjustments 3 3 1 3 1 Program Upgrade 3 1 3 2 DDC JIG Installation 3 2 3 3 EDID Installation with Windows Program 3 3 3 4 Factory Mode Adjustments 3 4 4 4 Troubleshooting 4 4 1 4 1 No Power 4 1 4 2 No Picture PC Signal 4 2 4 3 No Picture TV 4 4 4 4 No Picture Video S Video Scart 4 6 4 5 No Picture Component 4 8 4 6 No Sound TV 4 10 4 7 No Sound Component 4 12 5 5 Exploded View and Parts List 5...

Page 4: ...ly 11 1 11 3 Reassembly 11 3 1 12 PCB Diagram 1 12 1 13 C Circuit Descriptions 1 13 1 13 1 Block description 13 1 1 14 Reference Infomation 1 14 1 14 1 Technical Terms 14 1 14 2 Connecting Your Monitor 14 4 14 3 Connecting to Others devices 14 5 14 4 Pin Assignment 14 8 14 5 Timing Chart 14 9 14 6 Preset Timing Modes 14 10 14 7 Panel Description 14 11 Contents ...

Page 5: ... City Gyeonggi Do Korea 443 742 Printed in Korea P N BN82 00125C 01 URL http itself sec samsung co kr This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law ...

Page 6: ...n menu and exits from the menu screen or closes screen adjustment menu 4 CH Moves from one menu item to another vertically or adjusts selected menu values In TV mode selects TV channels 5 VOL Moves from one menu item to another horizontally or adjusts selected menu values Adjusts the audio volume 6 Enter button Activates a highlighted menu item 7 Power button Use this button to turn the monitor on...

Page 7: ...d 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 2 RGB Connect the signal cable to the RGB port on the back of your monitor 3 AUDIO PC sound terminal input ...

Page 8: ...evice 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 5 ANT IN TV antenna terminal ...

Page 9: ...n using it in a public place The locking device has to be purchased separately For using a locking device contact where you purchase it 6 AV connection terminal 1 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 ...

Page 10: ...rol 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 P MODE M B MagicBright â 16 P SIZE 17 STILL 18 PIP 19 S MODE 20 DUAL MTS 21 PRE CH 22 SOURCE 23 SIZE 24 POSITION 25 MAGIC CH ...

Page 11: ... you press this button current mode is displayed on the lower center of the screen TV AV Ext S Video Component Mode P MODE Picture Mode The monitor has four automatic picture settings that are preset at the factory Then push button again to circle through available preconfigured modes Dynamic æ Standard æ Movie æ Custom PC DVI Mode M B MagicBright â MagicBright â is a new feature providing the opt...

Page 12: ...ts the Video source 23 SIZE Available in PIP Mode You can switch the PIP picture size 24 POSITION Available in PIP Mode Changes the Position of the PIP window 25 MAGIC CH MagicChannel enables you to watch only certain channels This function is available only in Korea 10 Operating Instructions and Installation 10 7 ...

Page 13: ...Memo 10 Operating Instructions and Installation 10 8 ...

Page 14: ... contains electrostatically sensitive devices Use caution when handling these components 11 1 Disassembly Cautions 1 Disconnect the monitor from the power source before disassembly 2 Follow these directions carefully never use metal instruments to pry apart the cabinet 1 Place monitor face down on cushioned table Remove 4 screws from the stand 2 Remove 3 screws from the rear cover Lift up the rear...

Page 15: ... Disassembly and Reassembly 11 2 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 ...

Page 16: ...11 Disassembly and Reassembly 11 3 11 2 Reassembly Reassembly procedures are in the reverse order of disassembly procedures 6 Lift up the Panel BRKT ...

Page 17: ...Memo 11 Disassembly and Reassembly 11 4 ...

Page 18: ...12 PCB Layout 12 1 12 PCB Diagram 12 PCB Diagram ...

Page 19: ...12 PCB Layout 12 2 ...

Page 20: ...13 Circuit Descriptions 13 1 13 Circuit Descriptions 13 1 Block description ...

Page 21: ...13 Circuit Descriptions 13 2 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 ...

Page 22: ...cuit Descriptions 13 3 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 ...

Page 23: ...13 Circuit Descriptions 13 4 13 1 5 Connect a Function Board to a Main Board ...

Page 24: ...Display On screen display customer can control the screen easily with this Image Lock This means Fineness adjustment in LCD Monitor the features are Fine and Coarse FINE Fine adjustment is used to adjust visibility by control phase difference COARSE This is a adjustment by tuning with Video colck and PLL clock DVI Digital Visual Interface This provides a high speed digital connection for visual da...

Page 25: ...d 1024 vertical lines vertical resolution DVD A type of digital disk technology that takes up only the benefits of CD and LD to implement a high resolution quality which enables the user to enjoy clearer images DTV Broadcasting Digital TV Broadcasting An enhanced broadcasting technology to process digital video signals using a set top box which implements a high resolution and clearer digital imag...

Page 26: ...ernal video device as VCR camcorder and DVD player separate from a TV broadcast LNA Low Noise Amplifier This derives from artificial satellite technology that amplifies weak signals even in poor reception areas for sharper images Antenna Converter A connection part that is used to link a wide antenna cable feeder cable to the TV English Caption Caption Setting A kind of language selection feature ...

Page 27: ...nnect the DVI Cable to the DVI Port on the back of your Monitor 3 Connect the audio cable for your monitor to the audio port on the back of your computer 4 Turn on both your computer and the monitor 1 Using the D sub Analog connector on the video card Connect the signal cable to the D SUB port on the Macintosh computer 2 For older model Macintoshes you need to adjust the resolution control DIP swi...

Page 28: ...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 3 Then start the DVD VCR or Camcorders with a DVD disc or tape inserted 4 Select AV or S Video using the SOURCE Connecting AV Devices 1 Connect a video cable between the EXT RGB jacks on the monitor and the EXT RGB jacks on the DVD Player 2 Select Ext using the SOURCE Conn...

Page 29: ...ossible To connect the RF cable to the antenna input terminal Keep the copper wire portion of the RF cable straight 2 Turn on the monitor 3 Select TV using SOURCE button among the external signal adjustment buttons 4 Select a desired TV channel Connecting TV 1 Connect the Audio R and Audio L outputs on the DVD DTV set top box to the Audio R and Audio L inputs on the monitor using audio cables 2 Co...

Page 30: ...LCD monitor face down on a flat surface with a cushion beneath it to protect the screen 3 Remove four screws and then remove the Stand from the LCD monitor 4 Align the Mounting Interface Pad with the holes in the Rear Cover Mounting Pad and secure it with four screws that came with the arm type base wall mount hanger or other base This monitor accepts a 100 mm x 100 mm VESA compliant mounting inte...

Page 31: ...arate Composite 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Red Green Blue GND GND DDC Return GND Red GND Green GND Blue DDC 5V CHK D_SUB GND DDC Data Horizontal sync Vertical sync DDC Clock Red Green Blue GND GND DDC Return GND Red GND Green GND Blue DDC 5V CHK D_SUB GND DDC Data H V Sync Not Used DDC Clock ...

Page 32: ...sitive Positive Separate 31 469 31 777 3 813 1 589 26 058 0 318 70 087 14 268 0 064 0 858 13 155 0 191 28 322 Negative Positive Separate fH kHz A μsec B μsec C μsec D μsec E μsec fV Hz O msec P msec Q msec R msec S msec Clock Freq MHz Polarity H Sync V Sync Remark IBM 640 75 Hz 640 x 480 800 60 Hz 800 x 600 800 75 Hz 800 x 600 1024 60Hz 1024 x 768 1024 75Hz 1024 x 768 VGA2 70 Hz 720 x 400 VGA3 60 ...

Page 33: ...280 X 960 60 000 60 000 108 00 VESA 1280 X1024 63 981 60 020 108 00 VESA 1280X1024 79 976 75 025 135 00 VESA 1440 x 900 55 935 59 887 106 5 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 Refer to the video card manual and adjust the...

Page 34: ...s of 17 EH L05 SEC LTM170E5 L03 BN07 00056A ED Dell 1702FP pro E4 EH mechanical Compatible SEC LTM190E1 L01 BN07 00057A EE DELL 1900 FP SEC LTM181E5 L01 BN07 00061A EF 18 narrow bezel GH18PS SEC LTM150XP L01 BN07 00065A EG AMLCD PVA PANEL SEC LTM240W1 L02 BN07 00062A EH Panel for 15 Wide TV SEC LTM170EU L01 BN07 00071A EJ Slim design TN SEC LTM170E5 L04 BN07 00072A EK E5 L04 6 bits FRC for IBM SEC...

Page 35: ...C LTM190E1 L03 BN07 00151A E15 Development new 19 Panel form AMLCD Panel only for TCO03 SEC LTM240W1 L03 BN07 00134A E16 AMLCD 24 panel development SEC LTM190E1 L02 BN07 00128B E17 New Panel from AMLCD Specification 6bit Driver IC ZPD SEC LTM190E4 L01 BN07 00145A E18 AMLCD 24 new panel development SEC LTM170E8 L01 BN07 00158A E19 ZPD code derivation SEC LTM170EX L01 BN07 00159A E20 ZPD code deriva...

Page 36: ...6 9 SPVA 90 new Panel SEC LTA400WS LH1 BN07 00245A SPZ AMLCD 40 16 9 SPVA 90 new Panel CPT CLAA150XG09 BN07 00141A PA CPT 15 Monitor new panel development CPT CLAA170EA02 BN07 00148A PB 17 CPT NEW development panel CPT CLAA170EA02 BN07 00148B PC 17 CPT ZPD panel code derivation CPT CLAA150XG09 BN07 00141B PTZ CPT 15 panel ZPD code derivation GOYA PJT CPT CLAA150XP01 BN07 00173A PTH CPT 15 PSWG cod...

Page 37: ...an 15 Narrow Slim panel development TORISAN TM150XG A01 BN07 00162B RTZ Torisan 15 N S panel ZPD code Derivation SHARP LQ181E1DG11 A BN07 10001C PA SHARP LQ150X1LW71 BN07 00067A PB SHARP 15 PVA PANEL SHARP LQ370T3LZ41 BN07 00216A FAZ Rome2 HITACHI TX38D12VC0CAA A BN07 00003A HA HITACHI TX43DVCOCAB BN07 00060A HB 17 SXGA PVA MODE HITACHI TX43D15VC0CAB BN07 00101A HC ZPD Panel HITACHI TX51D11VC0CAB ...

Page 38: ...70E3 LO1 BN07 00050A CA TN PANEL CHIMEI M150X3 L01 BN07 00051A CB COMPATIBLE CHIMEI M170E4 L01 BN07 00052A CC MVA PANEL CHIMEI M150X2 L01 BN07 00066A CD CHIME 15 I PVA PANEL CHIMEI M150X3 L01 BN07 00079A CE Chimei ZPD panel CHIMEI M170E3 L01 BN07 00103A CF ZPD Panel code CHIMEI M170E4 L01 BN07 00104A CG ZPD Panel code CHIMEI V296W1 L01 BN07 00120A CH MVA CHIMEI M170E6 L02 BN07 00126A CJ HIGHLAND 1...

Page 39: ...14 Reference Infomation 14 16 Memo ...

Page 40: ...CB MAIN LS19DOWSS EDC DO19WS 1 S N A 3 T0245 0202 001522 SOLDER WIRE FLUX LFA3 107 D1 2 96 5Sn 1 S N A 3 IC012 1203 000165 IC POSI ADJUST REG 78R12 TO 220 4P PL 1 S A 3 FT702 2904 001179 FILTER SAW 36 125MHz 32 65 39 6MHz 0 5 1 S A 3 CN104 3701 001173 CONNECTOR DVI 24P 3R FEMALE ANGLE AUF 1 S A 3 CN101 3701 001219 CONNECTOR DSUB 15P 3R FEMALE ANGLE AUF 1 S A 3 CN330 3711 004712 HEADER BOARD TO CAB...

Page 41: ...TA 6 4V SMD 1 S A 4 D129 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D132 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D133 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D134 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D135 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D136 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D137 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S...

Page 42: ... R CHIP 47ohm 5 1 10W TP 1608 1 S A 4 R145 2007 000072 R CHIP 47ohm 5 1 10W TP 1608 1 S A 4 R146 2007 000072 R CHIP 47ohm 5 1 10W TP 1608 1 S A 4 R147 2007 000072 R CHIP 47ohm 5 1 10W TP 1608 1 S A 4 R412 2007 000072 R CHIP 47ohm 5 1 10W TP 1608 1 S A 4 R413 2007 000072 R CHIP 47ohm 5 1 10W TP 1608 1 S A 4 R102 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R103 2007 000074 R CHIP 100ohm 5 1 10...

Page 43: ... A 4 R750 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R751 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R424 2007 000076 R CHIP 330ohm 5 1 10W TP 1608 1 S A 4 R425 2007 000076 R CHIP 330ohm 5 1 10W TP 1608 1 S A 4 R116 2007 000077 R CHIP 470ohm 5 1 10W TP 1608 1 S A 4 R166 2007 000077 R CHIP 470ohm 5 1 10W TP 1608 1 S A 4 R727 2007 000077 R CHIP 470ohm 5 1 10W TP 1608 1 S A 4 R307 2007 ...

Page 44: ...608 1 S A 4 R317 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R318 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R320 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R405 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R406 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R407 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R410 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R41...

Page 45: ...A302 2011 000881 R NET 33ohm 5 1 16W L CHIP 8P TP 3 2x1 1 S A 4 RA303 2011 000881 R NET 33ohm 5 1 16W L CHIP 8P TP 3 2x1 1 S A 4 RA304 2011 000881 R NET 33ohm 5 1 16W L CHIP 8P TP 3 2x1 1 S A 4 C116 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C117 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C120 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C125 2203 000140 C CER CHIP 1 5n...

Page 46: ...00189 C CER CHIP 100nF 80 20 25V Y5V 1608 1 S A 4 C772 2203 000189 C CER CHIP 100nF 80 20 25V Y5V 1608 1 S A 4 C773 2203 000189 C CER CHIP 100nF 80 20 25V Y5V 1608 1 S A 4 C774 2203 000189 C CER CHIP 100nF 80 20 25V Y5V 1608 1 S A 4 C775 2203 000189 C CER CHIP 100nF 80 20 25V Y5V 1608 1 S A 4 C777 2203 000189 C CER CHIP 100nF 80 20 25V Y5V 1608 1 S A 4 C102 2203 000236 C CER CHIP 0 1nF 5 50V C0G 1...

Page 47: ...1 S A 4 C123 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C124 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C300 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C301 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C302 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C303 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C304 2203 005065 C C...

Page 48: ... C CER CHIP 10000nF 80 20 10V Y5V 3216 1 S A 4 C761 2203 005437 C CER CHIP 10000nF 80 20 10V Y5V 3216 1 S A 4 C776 2203 005437 C CER CHIP 10000nF 80 20 10V Y5V 3216 1 S A 4 C705 2402 000176 C AL SMD 10uF 20 16V GP TP 4 3x4 3x5 4 1 S A 4 C412 2402 001044 C AL SMD 100UF 20 25V GP TP 8 3X8 3X6 3 1 S A 4 C707 2402 001080 C AL SMD 47uF 20 50V WT TP 8x10mm 1 S A 4 C708 2402 001080 C AL SMD 47uF 20 50V W...

Page 49: ...82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 T...

Page 50: ...00 L10000 TRP 1 31 S N A 2 M0081 6902 000609 BAG ROLL T0 05 W2400 L1000 TRP 0 032 S N A 0 1 M0045 BN92 01584B ASSY ACCESSORY LS19DOWSS EDC DO19WS 1 S N A 2 M0013 BN96 02332D ASSY STAND P BASE HA19AS BS HIPS GR70 1 S A 3 M0081 6003 000282 SCREW TAPTITE BH B M3 L8 ZPC BLK SW 4 S N A 3 T0524 6902 000389 BAG PE T0 015 T0 5 T0 015 W350 L300 TRP 1 S N A 3 BN61 01235A SUPPORT BRKT BASE MJ19AS BS SECC T1 ...

Page 51: ... IC012 1203 000165 IC POSI ADJUST REG 78R12 TO 220 4P PL 1 S A 3 FT702 2904 001179 FILTER SAW 36 125MHz 32 65 39 6MHz 0 5 1 S A 3 CN104 3701 001173 CONNECTOR DVI 24P 3R FEMALE ANGLE AUF 1 S A 3 CN101 3701 001219 CONNECTOR DSUB 15P 3R FEMALE ANGLE AUF 1 S A 3 CN330 3711 004712 HEADER BOARD TO CABLE BOX 9P 1R 2mm STRA 1 S A 3 JA330 3722 000143 JACK PHONE 1P VER AG BLK ANGLE 1 S A 3 CN110 3722 000183...

Page 52: ... 6 4V SMD 1 S A 4 D137 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D138 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D139 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D140 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D141 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D142 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A 4 D143 0406 001163 DIODE TVS CDS3C05GTA 6 4V SMD 1 S A...

Page 53: ... 4 R102 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R103 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R111 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R112 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R113 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R114 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R115 2007 000074 R CHIP 100ohm 5 1 10W TP 1608 1 S A 4 R117 2007 00...

Page 54: ... 4 R166 2007 000077 R CHIP 470ohm 5 1 10W TP 1608 1 S A 4 R727 2007 000077 R CHIP 470ohm 5 1 10W TP 1608 1 S A 4 R307 2007 000078 R CHIP 1Kohm 5 1 10W TP 1608 1 S A 4 R450 2007 000078 R CHIP 1Kohm 5 1 10W TP 1608 1 S A 4 R454 2007 000078 R CHIP 1Kohm 5 1 10W TP 1608 1 S A 4 R459 2007 000078 R CHIP 1Kohm 5 1 10W TP 1608 1 S A 4 R716 2007 000078 R CHIP 1Kohm 5 1 10W TP 1608 1 S A 4 R738 2007 000078 ...

Page 55: ... 1 S A 4 R407 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R410 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R411 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R418 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R421 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R422 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R423 2007 000090 R CHIP 10Kohm 5 1 10W TP 1608 1 S A 4 R444 2...

Page 56: ...0V X7R 1608 1 S A 4 C120 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C125 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C126 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C127 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C452 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C453 2203 000140 C CER CHIP 1 5nF 10 50V X7R 1608 1 S A 4 C455 2203 000140 C CER CHIP 1 5n...

Page 57: ...7 2203 000189 C CER CHIP 100nF 80 20 25V Y5V 1608 1 S A 4 C102 2203 000236 C CER CHIP 0 1nF 5 50V C0G 1608 1 S A 4 C115 2203 000236 C CER CHIP 0 1nF 5 50V C0G 1608 1 S A 4 C308 2203 000257 C CER CHIP 10nF 10 50V X7R 1608 1 S A 4 C427 2203 000257 C CER CHIP 10nF 10 50V X7R 1608 1 S A 4 C701 2203 000257 C CER CHIP 10nF 10 50V X7R 1608 1 S A 4 C710 2203 000257 C CER CHIP 10nF 10 50V X7R 1608 1 S A 4 ...

Page 58: ... Y5V 1608 1 S A 4 C303 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C304 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C305 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C306 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C312 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C313 2203 005065 C CER CHIP 1000nF 80 20 10V Y5V 1608 1 S A 4 C314 2203 ...

Page 59: ...2402 001080 C AL SMD 47uF 20 50V WT TP 8x10mm 1 S A 4 C708 2402 001080 C AL SMD 47uF 20 50V WT TP 8x10mm 1 S A 4 C408 2402 001081 C AL SMD 100uF 20 25V WT TP 8 3x8 3x10 1 S A 4 C451 2402 001081 C AL SMD 100uF 20 25V WT TP 8 3x8 3x10 1 S A 4 C490 2402 001081 C AL SMD 100uF 20 25V WT TP 8 3x8 3x10 1 S A 4 C491 2402 001081 C AL SMD 100uF 20 25V WT TP 8 3x8 3x10 1 S A 4 C307 2402 001086 C AL SMD 100UF...

Page 60: ... A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45MHz 82ohm 1 S N A 4 T0568 3301 001145 BEAD SMD 60ohm 4516 TP 70ohm 45M...

Page 61: ... 02332D ASSY STAND P BASE HA19AS BS HIPS GR70 1 S A 3 M0081 6003 000282 SCREW TAPTITE BH B M3 L8 ZPC BLK SW 4 S N A 3 T0524 6902 000389 BAG PE T0 015 T0 5 T0 015 W350 L300 TRP 1 S N A 3 BN61 01235A SUPPORT BRKT BASE MJ19AS BS SECC T1 6 1 S N A 3 CIS4 BN61 01717A HOLDER STAND BIZET NI PLT CH M4 L11 5 1 S N A 3 T0004 BN63 01991B COVER STAND BASE HA19AS BS HIPS T2 5 BK2 1 S N A 3 BN63 01992D COVER ST...

Page 62: ...odel 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 Response Time 8ms 8ms Scart Jack O X Micom VCT49xy Embeded MCU TDA15021H Scaler SE6181 TSU396AWJ LF PBA ...

Page 63: ... TTL level Maximum Pixel Clock rate 140 MHz Active Display Horizontal Vertical 408 24 H x 255 15 V AC power voltage Frequency AC 100 240 Volts 10 60 50 Hz 3 Hz Power Consumption 55 W max Dimensions Set W x H x D 18 3 x 16 0 x 8 5 Inches 466 X 406 X 217 mm Weight Set Package 6 2 kg 14 Ibs TV Video Color system NTSC PAL SAM PAL M N NT43 PAL60 Sound system B G I D K Antena Input 75Ω Coaxial Cable Env...

Page 64: ... 00376L BH68 70438A BN59 00480D 940MW BN59 00480W 940MG BN39 00244B BN39 00061B 3903 000042 Warranty Card Not available in all locations User s Guide Monitor Driver Natural Color software D Sub 15 Pin Cable Audio Cable Power Cord BN59 00434C 4301 000121 3705 001191 Remote Control Batteries AAA X 2 Connecter ...

Page 65: ...Memo 2 Product Specifications 2 4 ...

Page 66: ... 5 1 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 T0003 M0215 CIS M0017 M0174 M0107 M0013 STD M0013 ...

Page 67: ...W HIPS HB BK24 1 S A STD BN96 02966A ASSY STAND P BODY LS19DOW HIPS HB BK24 Z 1 S A M0013 BN96 02332D ASSY STAND P BASE HA19AS BS HIPS GR70 1 S A Location No CODE NO SPECIFICATION DESCRIPTION Q TY SA SNA REMARK T0003 BN96 03793A ASSY COVER P FRONT LS19DOC ABS HB GR70 S 1 S A M0215 BN07 00280A LCD PANEL LTM190M2 L01 D016 Dvorak 6BIT 1 S A CIS BN96 02505A ASSY SHIELD P PANEL LS19DOW SECC T0 8 AM 1 S...

Page 68: ...7 Block Diagrams 7 1 7 Block Diagram ...

Page 69: ...7 Block Diagrams 7 2 ...

Page 70: ... replacement can be done when Service Bulletin issue is in practice The process of working need to be prepare on Service Bulletin As the visual sample shown after disassembling the set refer to SET disassemble remove the Micom in the exist IC202 Socket and replace new Micom Use appropriate JIG or any sharp tool and place in the both corners to assist in removing Be aware If the socket cause any da...

Page 71: ...3 Alignments and Adjustments 3 2 PC parallel port DDC JIG Monitor JIG cable D_sub cable Connect DDC JIG 3 2 DDC JIG installation ...

Page 72: ...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 4 Confirm the DDC OK After Replacing the Main Board EDID Installation Analog and Digital ...

Page 73: ...3 Alignments and Adjustments 3 4 3 4 Factory Mode Adjustments 3 4 1 Factory Mode Admission PAL NTC Info Power off Menu Power on MUTE Power off 1 8 2 Power on 3 4 2 Service Mode Menu DDP Part ...

Page 74: ...3 Alignments and Adjustments 3 5 MSTAR Part Adjust PC DTV Auto Color ...

Page 75: ...3 Alignments and Adjustments 3 6 Pre Setting Options Checksum Panel Information Reset ...

Page 76: ...wer Does DC 13V 5V appear at CN400 Check Inverter Adaptor Board Yes No Does DC 3 3V Appear at FT412 Check circuits related to IC405 Check IC702 VCTI F2 IC704 and IC301 SE6181LA Yes No Yes Does DC 3 3V Appear at FT414 Check circuits related to IC407 No ...

Page 77: ...a signal appear at C103 C104 and C105 R G B input Check circutis relatedCN101 Yes No Does a signal appear at R108 and R110 H V Sync Check circuits related CN101 Yes No Does a signal appear at 1 30 of CN300 LVDS out Check circuits related IC031 Yes No Replace LCD PANEL 1 2 3 4 ...

Page 78: ...4 Troubleshooting 4 3 WAVEFORMS 1 2 4 3 ...

Page 79: ...ignal appear at PIN 2 of FT702 X6966 Check TU700 TUNER Yes No Does a signal appear at PIN71 72 73 74 75 78 79 80 of IC702 Check the circuits related to IC702 Yes Yes No Does a signal appear at PIN 1 30 of CN300 Check IC301 No Replace LCD Panel 5 6 4 ...

Page 80: ...4 Troubleshooting 4 5 WAVEFORMS 4 5 6 ...

Page 81: ...at R732 R733 R734 Check a A V cable and video signal Yes No Does the signal appear at PIN 71 80 of IC703 Check a connection harness Yes No Check a LVDS cable Replace lcd panel Check a IC301 Change a main PCB ass y No Does the digital data appear at output of LVDS RA301 RA303 Check a IC703 Change a main PCB ass y Yes No 5 4 ...

Page 82: ...4 Troubleshooting 4 7 WAVEFORMS 4 5 ...

Page 83: ... on no picture Does the signal appear at PIN 31 37 of IC301 Check a A V cable and video signal Yes No Does the digital data appear at output of LVDS RA301 RA303 Check a connection harness Yes No Check a LVDS cable Replace lcd panel Check a IC301 Change a main PCB ass y No 5 4 ...

Page 84: ...4 Troubleshooting 4 9 WAVEFORMS 4 5 ...

Page 85: ...f FT702 X6966M Check Tuner Yes No Does a signal appear at R454 and R458 Check the circuits relevant to IC702 No Yes Does a signal appear at PIN 2 5 9 16 of IC409 SL SR OUT Check the circuits relevant to IC409 Yes No Check the Speaker L R 4 6 No Sound TV 5 7 ...

Page 86: ...4 Troubleshooting 4 11 WAVEFORMS 5 7 ...

Page 87: ...ck a connection harness Yes No Does a signal appear at PIN 123 124of IC702 Check the circuits relevant to IC702 No Yes Does a signal appear at PIN 2 5 9 16 of IC409 SL SR OUT Check the circuits relevant to IC409 Yes No Check the Speaker L R 4 7 No Sound COMPONENT 5 ...

Page 88: ...4 Troubleshooting 4 13 WAVEFORMS 5 ...

Page 89: ...Memo 4 Troubleshooting 4 14 ...

Page 90: ...8 Wiring Diagram 8 1 8 Wiring Diagram ...

Page 91: ...8 Wiring Diagram 8 2 Memo ...

Page 92: ...pliances and Underwriters Laboratories UL Publication UL1410 59 7 Figure 1 1 Leakage Current Test Circuit 4 With the unit completely reassembled plug the AC line cord directly into a 120V AC outlet With the unit s AC switch first in the ON position and then OFF measure the current between a known earth ground metal water pipe conduit etc and all exposed metal parts including metal cabinets screwhe...

Page 93: ...ord from the AC source and turn the power switch ON Connect an insulation resistance meter 500 V to the blades of the AC plug The insulation resistance between each blade of the AC plug and accessible conductive parts see above should be greater than 1 megohm 6 Always connect a test instrument s ground lead to the instrument chassis ground before connecting the positive lead always remove the inst...

Page 94: ...oisture Otherwise it may cause a fire or electric shock 5 Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product Also check the antenna cable or the external connectors if they are fully unplugged Damage to the cord may cause fire or electric shock 6 Keep the antenna far away from any high voltage cables and install it firmly Contact with the hig...

Page 95: ...Memo 1 Precautions 1 4 ...

Page 96: ...9 Schematic Diagrams 9 1 9 Schematic Diagrams This Document can not be used without Samsung s authorization ...

Page 97: ...9 Schematic Diagrams 9 2 ...

Page 98: ...9 Schematic Diagrams 9 3 ...

Page 99: ...9 Schematic Diagrams 9 4 ...

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Samsung 940MW - SyncMaster - 19" LCD Monitor, Service Manual

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