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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 1. For continued safety, do not attempt to modify the circuit board. 2. Disconnect the AC power and DC power jack before servicing. 1-1-2 Servicing the LCD Monitor 1. When servicing the LCD Monitor, Disconnect the AC line cord from the AC outlet. 2.
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. 1-2-1 General Servicing Precautions 1. 2. 3.
1 Precautions 1-4 Installation Precautions 1. For safety reasons, more than two people are required for carrying the product. 2. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. 3. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire. 6. Keep the antenna far away from any high-voltage cables and install it firmly.
1 Precautions Memo 1-4
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6 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.
5 Exploded View & Parts List Location Code.No M0173 BN96-03041B ASSY STAND P-CAP;LS19MB,BLACK,ABS HB,BK2 1 S.A M0045 BN96-03042H ASSY STAND P-SET;LS19MBX(S/M 971P),DC 40 1 S.A M0013 BN96-03040B ASSY COVER P-REAR;LS19MBP,ABS HB,BK26,BL 1 S.A M0215 BN07-00405A LCD-PANEL;LTM190E4-L31-D,Mobius,6bit Hi- 1 S.A M0215 BN44-00118D INVERTER;Mobius,M260,14V,3.3~4.4mA,6.8~8 1 S.A T0003 BN96-03892B ASSY COVER P-FRONT;MOBIUS,DP,BN96-03039B 1 S.
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 Parts List Level Loc. No. Code No. Description & Specification LS19MBXXFV/XSF 971P,SAD1/S19AZ-LMB,19,LCD-MO,CHINA Q'ty SA/SNA 0.1 ..2 ...3 ...3 ...3 ...3 ...
6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ....4 ....4 USB USB 2409-001065 2801-003326 C-ORGANIC;82uF,20%,16V,WT,TP,8X6.9mm,CRYSTAL-SMD;24MHZ,30PPM,28-ABX,20PF,50OH 2 1 S.A S.A 0.1 ..2 MP1.4 M0158 BN91-00591W BN44-00139A ASSY MISC-ADAPTOR;MOBIUS ADAPTOR;SAD03612A-UV,ADAPTOR,90 ~ 264Vac 1 1 S.N.A S.A 0.1 ..2 T0852 M0215 BN91-01303L BN07-00405A ASSY LCD-SPZ;LS19MBX LCD-PANEL;LTM190E4-L31-D,Mobius,6bit Hi- 1 1 S.N.A S.A 0.1 ..2 ..2 ..2 ..2 .
6 Electrical Parts List Level Loc. No. ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....
6 Electrical Parts List Level ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 6-4 Loc. No.
6 Electrical Parts List Level Loc. No. ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....
6 Electrical Parts List Level Loc. No. Code No. Description & Specification Q'ty SA/SNA ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 ....4 .....5 ....4 ....4 ....4 ....4 ....
7 Block Diagrams 7 Block Diagram 7-1 Power Tree 7-1
7 Block Diagrams 7-2 Block Diagram 7-2
8 Wiring Diagram 8 Wiring Diagram 8 Wiring Diagram (Connect to Panel) (Connect to Stand Cable) (Connect to Inverter) (Connect to Stand Cable) 8-1
8 Wiring Diagram Memo 8-2
9 Schematic Diagrams 9 Schematic Diagrams - This Document can not be used without Samsung s authorization.
9 Schematic Diagrams 1 2 5 3 4 7 9-2 6
9 Schematic Diagrams 9-2 Schematic Diagrams 9-3
9 Schematic Diagrams 9-3 Power inverter Schematic Diagrams 9-4
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12 PCB Layout 12 PCB Diagram DVI DDC Rom X1 14MHz Digital In CN102 12V Analog In CN101 Inverter connector Scaler SE656MR-LF IC203 Pivot Sensor MCU Down Rom IC 12-1
12 PCB Layout Memo 12-2
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14 Reference Infomation 14 Reference Infomation 14-1 Technical Terms -TFT-LCD (Thin film Transistor Liquid Crystal Display) ADC(Analog to Digital Converter) This is a circuit that converts from analog signal to digital signals. -PLL(Phase Locked Loop) During progressing ADC, Device makes clock synchronizing HSYNC with Video clock -Inverter Device that supply Power to LCD panel lamp. this device gernerate about 1,500~2,000V.
14 Reference Infomation -EDID Extended Display Identification Data PC can recognize the monitor information as Product data, Product name,Display mode,Serial number and Signal source,etc through DDC Line communicating with PC and Monitor. -Dot Pitch The image on a monitor is composed of red, green and blue dots. The closer the dots, the higher the resolution. The distance between two dots of the same color is called the 'Dot Pitch'.
14 Reference Infomation 14-2 Connecting Your Monitor 1. Connect the DC 14V adapter for your monitor to the power port 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 'DVI-A to D-Sub' Cable to the DVI-I port on the back of your monitor. DVI-A/D-Sub Cable Monitor PC D-Sub DVI-A 2-2. Connected to a Macintosh. Connect the monitor to the Macintosh computer using the DVI-I connection cable. 2-3.
14 Reference Infomation 14-3 Pin Assignments Sync Type Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 15-Pin D-Sub Signal Cable Connector Separate Composite Sync-on-green Red Green Blue GND DDC Return (GND) GND-R GND-G GND-B DDC Power Input (+5V) Self Raster GND Bi-Dr Data (SDA) H-Sync. V-Sync. DDC Clock (SCL) Red Green Blue GND DDC Return (GND) GND-R GND-G GND-B DDC Power Input (+5V) Self Raster GND Bi-Dr Data (SDA) H/V-Sync. Not Used DDC Clock (SCL) Red Green + H/V Sync.
14 Reference Infomation 14-4 Timing Chart This section of the service manual describes the timing that the computer industry recognizes as standard for computergenerated video signals. Table 2-1 Timing Chart VESA IBM Mode VGA2/ 70 Hz Timing VGA3/ 60 Hz 640/75 Hz 800/60 Hz 800/75 Hz 1024/60 Hz 1024/75 Hz 1280/60 Hz 1280/75 Hz 720 x 400 640 x 480 640x480 800x600 800x600 1024x768 1024x768 1280x1024 1280x1024 fH (kHz) 31.469 31.469 37.500 37.879 46.875 48.363 60.023 63.981 79.
14 Reference Infomation 14-5 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. Refer to the video card manual and adjust the screen as follows. Table 1. Preset Timing Display Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) Pixel Clock (MHz) Sync Polarity (H/V) IBM, 640 x 350 31.469 70.086 25.
14 Reference Infomation 14-6 Panel Description Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE BN68-00239H Remarks SEC LT140X1-002 BN07-00004A SA SEC LT150XS-L01 BN07-00009A SB - SEC LT150XS-L01-B BN07-00022A SC - SEC LTM150XS-L02 BN07-00005A SD - SEC LT181E2-132 BN07-00001A SE - SEC LT150XS-T01 BN07-00010A SF - SEC LTM181E3-132 BN07-00019A SG - SEC LT170E2-131 BN07-10001D SH - SEC LT181E2-131 BN07-10001E SJ - SEC LTM170E4-L01 BN07-00018A SK - SEC
14 Reference Infomation Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks SEC LTA320W1-L01 BN07-00108A E4 Panel for AMLCD 32" TV SEC LTM213U4-L01 BN07-00124A E5 NARROW BEZEL 21 " PANEL SEC LTM170E6-L04 BN07-00129A E6 HIGHLAND 17" LOW PANEL (Panel only for TCO03) SEC LTM190E1-L01 BN07-00088A E7 LTM190E1-L01 ZPD panel SEC M150X4-L06 BN07-00137A E8 15" Narrow & Slim panel SEC LTA170V1 BN07-00139A E9 17" Panel for Muse 4:3 VGA TV SEC LTM190E1-L02 BN07-00128A E10
14 Reference Infomation Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks SEC LTM201UX-L01 BN07-00249A STZ AMLCD 20.
14 Reference Infomation Maker VENDOR P/N TORISAN TM150XG-26L06 BN07-00042A RB - TORISAN TM181SX-76N01 BN07-00048A RC - TORISAN TM150XG-26L06 BN07-00059A RD 15" XGA TN MODE(ZPD) TORISAN TM290WX-71N31 BN07-00063A RE RS24NS (TORISAN 29" NEW PANEL) TORISAN TM396WX-71N31 BN07-00064A RF RS24NS (TORISAN 40" NEW PANEL) TORISAN TM150XG-26L09 BN07-00073A RG Panel for 15" TV TORISAN TM150XG-26L10 BN07-00089A RH L10(change except D/IC) ZPD TORISAN TM150XG-26L10 BN07-00090A RJ L1
14 Reference Infomation Maker VENDOR P/N PANEL_CODE PANEL_ABB STICKER_CODE Remarks ACER A201SN01 BN07-00177A ATZ AU TV panel 20.
14 Reference Infomation Memo 14-12
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