NEC MultiSync LCD1970NX Service Manual
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NEC MultiSync LCD1970NX Service Manual

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SERVICE MANUAL

MODEL
NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION
COLOR MONITOR
MultiSync
LCD1970NX (B) / (C)
LCD1970NX-BK (B) / (C)
1st Edition
NOVEMBER 2004
LCD1970NX
PART NO. 599910742
200412
08RJ1LBY
08RJ2LBY
08RJ1LCY
08RJ2LCY

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  • Page 1: Service Manual

    PART NO. 599910742 SERVICE MANUAL COLOR MONITOR  MultiSync LCD1970NX MODEL LCD1970NX (B) / (C) LCD1970NX-BK (B) / (C) 1st Edition NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION NOVEMBER 2004 200412 08RJ1LBY 08RJ2LBY 08RJ1LCY 08RJ2LCY...
  • Page 2 WARNING The SERVICE PERSONNEL should have the appropriate technical training, knowledge and experience necessary to: • Be familiar with specialized test equipment, and • Be careful to follow all safety procedures to minimize danger to themselves and their coworkers. To avoid electrical shocks, this equipment should be used with an appropriate power cord. This equipment utilized a micro-gap power switch.
  • Page 3 CONTENTS Page No. USER'S MANUAL --------------------------------------------------------------------- 1-1 SERIAL NUMBER INFORMATION ----------------------------------------------- 2-1 DISASSEMBLY ------------------------------------------------------------------------- 3-1 ADJUSTMENT PROCEDURES ---------------------------------------------------- 4-1 INSPECTION ----------------------------------------------------------------------------- 5-1 TROUBLE SHOOTING --------------------------------------------------------------- 6-1 CIRCUIT DESCRIPTION ------------------------------------------------------------- 7-1 REPLACEMENT PARTS LIST ----------------------------------------------------- 8-1 BLOCK DIAGRAM -------------------------------------------------------------------- 9-1 SCHEMATIC DIAGRAMS ----------------------------------------------------------- 10-1 PACKING SPECIFICATION -------------------------------------------------------- 11-1 REVISION HISTORY ------------------------------------------------------------------ 12-1...
  • Page 4 User's Manual MultiSync LCD1970V MultiSync LCD1970NX User’s Manual...

  • Page 5: Table Of Contents

    Index Warning, Caution ......................... English-1 Declaration ...........................English-1 Canadian Department of Communications Compliance Statement ..........English-2 Declaration of Conformity ......................English-2 Contents ............................English-3 Quick Start ...........................English-4 Controls ............................English-8 Recommended use ........................English-10 Specifications for LCD1970V ..................... English-12 Specifications for LCD1970NX ....................English-13 Features .............................

  • Page 6: Warning, Caution

    NERGY U.S. registered trademark. OmniColor is a registered trademark of NEC-Mitsubishi Electronics Display Europe GmbH in the countries of EU and Switzerland. ErgoDesign is a registered trademark of NEC-Mitsubishi Electric Visual Systems Corporation in Austria, Benelux, Denmark, France, Germany, Italy, Norway, Spain, Sweden and U.K.

  • Page 7: Canadian Department Of Communications Compliance Statement

    C-UL: Bears the C-UL Mark and is in compliance with Canadian Safety Regulations according to CAN/CSA C22.2 No. 60950-1. FCC Information Use the attached specified cables with the MultiSync LCD1970V (L194RK)/MultiSync LCD1970NX (L194RH) colour monitor so as not to interfere with radio and television reception.

  • Page 8: Contents

    Contents Your new NEC MultiSync LCD monitor box* should contain the following: • MultiSync LCD monitor with tilt/swivel/height adjust stand • Power Cord • Video Signal Cable (15-pin mini D-SUB male to 15-pin mini D-SUB male) • User’s Manual •...

  • Page 9: Quick Start

    Quick Start To attach the MultiSync LCD monitor to your system, follow these instructions: 1. Turn off the power to your computer. 2. For the PC or MAC with DVI digital output (NX only): Connect the DVI signal cable (not included) to the connector of the display card in your system (Figure A.1).
  • Page 10 7. Place the DVI cable into the specific hooks indicated in Figure C.3. 8. Make sure all cables are resting flat against the stand (Figure C.3). DVI Cable (NX only) Flat 9. Hold the all cables firmly and place the cable cover onto the stand (Figure D.1).

  • Page 11: Raise And Lower Monitor Screen

    Raise and Lower Monitor Screen The monitor may be raised or lowered. To raise or lower screen, place hands on each side of the monitor and lift or lower to the desired height (Figure RL.1). NOTE: Handle with care when raising or lowering the monitor screen. Figure RL.1 Tilt and Swivel Grasp both sides of the monitor screen with your hands and adjust the tilt and swivel as desired (Figure TS.1).

  • Page 12: Flexible Arm Installation

    5. Lift up the stand to unlatch the upper hooks and remove the stand (Figure S.3). 6. Remove the 2 screws on the top of the monitor (Figure S.4). The monitor is now ready for mounting in an alternate manner. 7.

  • Page 13: Controls

    Controls OSM (On-Screen Manager) control buttons on the front of the monitor function as follows: To access OSM menu, press any of the control buttons (MENU/EXIT, Left, Right, Down, Up). To change signal input, press the SELECT button (NX only). To change DV MODE, press the RESET button (NX only).

  • Page 14: Menu Tools

    Colour Control System Colour Control System: Six colour presets select the desired colour setting (sRGB and NATIVE colour presets are standard and cannot be changed). R,G,B: Increases or decreases Red, Green or Blue colour depending upon which is selected. The change in colour will appear on screen and the direction (increase or decrease) will be shown by the bars.

  • Page 15: Recommended Use

    NOTE: As with all personal display devices, NEC-Mitsubishi Electronics Display recommends displaying moving images and using a moving screen saver at regular intervals whenever the screen is idle or turning off the monitor when not in use.
  • Page 16 CORRECT PLACEMENT AND ADJUSTMENT OF THE MONITOR CAN REDUCE EYE, SHOULDER AND NECK FATIGUE. CHECK THE FOLLOWING WHEN YOU POSITION THE MONITOR: • For optimum performance, allow 20 minutes for warm-up. • Adjust the monitor height so that the top of the screen is at or slightly below eye level. Your eyes should look slightly downward when viewing the middle of the screen.

  • Page 17: Specifications For Lcd1970V

    60 Hz to 75 Hz 1152 x 870* at 75 Hz 1280 x 1024 at 60 Hz to 75 Hz NEC-Mitsubishi Electronics Display cites recommended resolution at 60 Hz for optimal display performance. Active Display Area Horizontal: 376.3 mm/14.8 inches Vertical: 301.1 mm/11.9 inches...

  • Page 18: Specifications For Lcd1970Nx

    Specifications for LCD1970NX Monitor Specifications MultiSync LCD1970NX Monitor Notes LCD Module Diagonal: 48.2 cm/19.0 inches Active matrix; thin film transistor (TFT) Viewable Image Size: 48.2 cm/19.0 inches liquid crystal display (LCD); 0.294 mm dot Native Resolution (Pixel Count): 1280 x 1024 pitch;...

  • Page 19: Features

    Features Thin-frame design creates more desktop space for you to work and play, while the flat screen’s crisp, bright images and crystal- clear text deliver a comfortable viewing experience. No Touch Auto Adjust automatically adjusts your optimal image settings upon initial power-on. Colour Control System allows you to change between six colour settings on your display to match your personal preference.

  • Page 20: Troubleshooting

    NOTE: As with all personal display devices, NEC-Mitsubishi Electronics Display recommends displaying moving images and using a moving screen saver at regular intervals whenever the screen is idle or turning off the monitor when not in use.

  • Page 21: Tco'03

    TCO’03 Congratulations! The display you have just purchased carries the TCO’03 Displays label. This means that your display is designed, manufactured and tested according to some of the strictest quality and environmental requirements in the world. This makes for a high performance product, designed with the user in focus that also minimizes the impact on our natural environment.

  • Page 22: Manufacturer's Recycling And Energy Information

    ISO (International Organisation for Standardization) and TCO (Swedish Trades Union). For more information, and for help in recycling your old NEC or Mitsubishi monitors, please visit our website at http://www.nec-mitsubishi.com (in Europe) or...

  • Page 23: Serial Number Information

    Serial Number Information Refer to the serial number information shown below. EX.) SERIAL NUMBER LABEL Model Name : LCD1970NX LCD1970NX-BK SERIAL NO. : g g g g g g g g g g Manufactured Year : ( Last digit ) Manufactured Month : January to September 1 to...
  • Page 24 DISASSEMBLY g Before you disassemble the set, turn off power and pull out the power plug. g Use the proper screwdriver. If oversize or undersize screwdriver is used, screws may be damaged. g Assembly is the opposite process of disassembly. For Europe For China Cabinet...
  • Page 25 For Europe For China Cabinet Symbol Description Version (NPG Part Number) (NMV Part Number) Color 14300471 SC,PL-CPIMS4*16*3K B / C 14300271 P3X8 ML(IN) White B / C 14300311 P3.0*8 MC(ZN) Black B / C 10107361 79PQ7832 BACK L194RJ (N) WH White B / C 10107371...
  • Page 26 For Europe For China Cabinet Symbol Description Version (NPG Part Number) (NMV Part Number) Color 14000121 SCREW (CUP)3x8x15BF B / C 14300201 SCREW 4#-40Tx4.8HLx4HLx5 B / C 14000491 SC,CBIPSx4x8x15B B / C R3201481 79PQ7825 WIRE CC12P 1571#30L180 B / C JM100401 79PQ7815 U INVERT-POWER 1970V AU...
  • Page 27 For Europe For China Cabinet Symbol Description Version (NPG Part Number) (NMV Part Number) Color 14300801 SC #3FSUSMS*3*6*15K B / C 10107611 79PQ7840 BEZEL WH(N) BC L194RJ White B /C 10107611 BEZEL WH(N) BC L194RJ Black 79PQ7842 BEZEL BK(N) C L194RJ Black 12001211 79PQ7855...
  • Page 28 For Europe For China Cabinet Symbol Description Version (NPG Part Number) (NMV Part Number) Color R3201471 79PQ7824 WIRE CC30P 1589#30L220 B / C 3A684091 3A684091 TFT LM190E02-A4K5 B / C (NMV Part Number)
  • Page 29 ADJUSTMENT PROCEDURES TABLE OF CONTENTS Page 1. Application ..........................4-2 2. Adjustment Conditions ......................4-2 2.1 Time for Adjustment ......................4-2 2.2 Measuring Instruments, Jigs, and Tools................4-2 2.3 Power Supply Voltage ....................... 4-2 2.4 Aging ..........................4-2 3. Default Setting ........................4-3 4.

  • Page 30: Application

    1. Application This adjustment specification should be applied to the adjustment of the LCD1970NX (L194RJ). 2. Adjustment Conditions 2.1 Time for Adjustment Adjustments should be made only when the unit is fully assembled. 2.2 Measuring Instruments, Jigs, and Tools When adjusting the unit, use measurement instruments, jigs, and tools specified below. a.

  • Page 31: Default Setting

    3. Default Setting Item Condition Power Supply AC100V~240V Input Freq. 1280×1024@75Hz BRIGHTNESS 100% CONTRAST Color Temp. NATIVE OSM TRUN OFF 45 sec. OSM LOOK OUT Resolution notifier OSM Setting OFF TIMER OSD/OSM SETTING URL SETTING WWW.NECMITSUBISHI.COM HOT KEY LANGUAGE ENGLISH 4.

  • Page 32: Set Adjustments

    5. Set Adjustments 5.1 Power On 1) Plug the AC power cable into the wall outlet. Then press the POWER key. Confirm that the status LED is amber, and that the OSM [NO SIGNAL] is displayed. NOTE: If the status LED is not amber after the POWER key is pressed check that the power cable is properly connected.

  • Page 33: Factory Mode

    5.2 Factory Mode The following pages comprise the Service Menu. The Warning Message 5.2.1 How to Enter Service Mode 1. Open Information menu (Signal information). 2. Press “SELECT”+”RESET”. 3. The Warning Message will be shown. 4. Then press “Select” to enter the Service Mode. 5.

  • Page 34: How To Use Service Mode

    5.2.2 How to Use Service Mode Page1: This page is used to check user’s HOURS RUNNING and system’s total HOURS RUNNING. 1. Press “SELECT” to move cursor on HOURS RUNNING. 2. Press “3(LEFT)” + ”RESET” at the same time to check HOURS RUNNING. 3.
  • Page 35 Page2: This page is used to adjust RGB offset, and gain. AUTO CONTRAST A gain, offset1 and offset2 are auto adjusted. Input frequency: Analog signal, white frame and gray pattern. 1. Press “6(DOWN)” or “5(UP)” to move cursor to AUTO CONTRAST. 2.
  • Page 36 Page4: OSD DESIGN: It does not operate. OSD SELECT: The OSD/OSM display is modified for the OSD user menu. 0: OSD: (Japanese destination) 1: OSM: Setting for shipment (overseas destination) (setting for shipment) URL: Display/non-display of the Internet address is modified for MONITOR INFO. 0: No displayed 1: Display: WWW.NECMITSUBISHI.COM (overseas destination) (setting for shipment)
  • Page 37 Page5: CS SAMPLE COMP: The position that detects the synchronized signal of a composite signal is adjusted. 0: A synchronized signal is detected in a 2/8 level synchronous position. 1: A synchronized signal is detected in a 3/8 level synchronous position. 2: A synchronized signal is detected in a 4/8 level synchronous position.

  • Page 38: How To Exit Service Mode

    5.2.3 How to Exit Service Mode Press the “EXIT” key to close OSM menu (Service mode). If you turn off (power off) the monitor in the Service mode, it will exit the Service mode. Likewise, if you unplug the power cord while in the Service mode, it will exit the Service mode. 5.2.4 Burn in Mode The monitor can display color image without signal for aging.

  • Page 39: Auto Contrast Adjustment

    6. Auto Contrast Adjustment 6.1 ADC Bias and Gain Control a: Enter the input signal of VESA 640x480 (75Hz) in 8Grayscale+Window+Frame pattern. Input signal level: 0.7Vp-p b: OSM into factory mode c: OSM select to “auto contrast” then press “Left” or “Right” button, then push down key. d: Press “SELECT”...

  • Page 40: Reference Signal Timing

    6.5 Reference Signal Timing Item Abbreviation VESA 1280x1024 75Hz VESA 640x480 75Hz Pixel frequency 135.00MHz 31.500MHz Horizontal frequency 79.98kHz 37.50kHz Line Time total 12.50us 1688CLK 26.67us 840CLK Horizontal active display 9.48us 1280CLK 20.32us 640CLK Horizontal sync pulse 1.07us 144CLK 2.03us 64CLK Horizontal back porch 1.84us...

  • Page 41: Inspection -----------------------------------------------------------------------------

    INSPECTION TABLE OF CONTENTS Page 1. General Description ------------------------------------------------------------------------------------------ 5-2 2. Electrical Characteristics ------------------------------------------------------------------------------------ 5-3 2.1 Power Supply --------------------------------------------------------------------------------------------- 5-3 2.2 LCD Panel ------------------------------------------------------------------------------------------------- 5-4 2.3 85Hz Refresh Rate Support --------------------------------------------------------------------------- 5-4 2.4 White Color Temperature ------------------------------------------------------------------------------- 5-4 2.5 Check Power Manage Function ---------------------------------------------------------------------- 5-5 3.

  • Page 42: General Description

    1. General Description Product Specifications LG.Philips LM190E02-A4K5 Analog Input Digital Input Pixel Pitch 0.294mm Resolution 1280x1024 dots (SXGA) LCD Module Color 16.7 million colors (8 bit) Brightness *1) 250cd/m (Typical) Contrast Ratio 500:1 (Typical) Viewing Angle 88/88(L/R), 88/88(U/D) (CR>10: Typical) Horizontal 31.5 –...

  • Page 43: Electrical Characteristics

    Power Supply Universal AC100 – 240V Current Rating 1.2A (AC100V) / 0.6A (AC240V) Temp. 5 – 35°C Operational Environment Humid. 30 – 80% (without condensation) 367.0(W) x 362.0 – 472.0(H) x 198(D) mm Dimension Gross 426.0(W) x 446.0(H) x 252.0(D) mm 7.5kg Weight Gross...

  • Page 44: Lcd Panel

    2.2 LCD Panel Active matrix thin-film-transistor (TFT) Effective display size 376.32(H) x 301.056(V) mm Pixel number 1280 x 1024 pixels Color filter arrangement RGB vertical stripes Display method IPS, Normally black Drive method Active matrix thin-film-transistor (TFT) Pixel pitch 0.294(H) x 0.294(V) mm Dot number 1280 x 1024 dots Back-light...

  • Page 45: Check Power Manage Function

    2.5 Check Power Manage Function This function conform DPMS of VESA, and International Energy Star Office Equipment program. Power Management condition and status for ANALOG Input mode. Mode Horizontal Vertical Power Supply Input Timing Power Consumption 240Vac VESA 1280x1024 (75Hz) 38W +20% Stand-by 240Vac...

  • Page 46: External Inspection On The Lcd Module

    3. External Inspection on The LCD Module 3.1 Inspection Conditions 1. Room temperature: 20-25°C 2. Humidity: 65 ±5%RH 3. Illumination: Single 20W fluorescent lamp non-directive (Appearance 300 ~ 700 Lux, Display 180 ~ 200Lux) 4. To be a distance about 35 cm in front of LCD unit, viewing line should be perpendicular to the surface of the module judge the visual appearance with human’s eyes.
  • Page 47 :Bright Dot :Dark Dot Note 1. Horizontally adjacent 2 dots (R+G, G+B) Count as horizontally adjacent 2 dots Do not count as adjacent 2 dots etc. Combination Combination except horizontally with Bright adjacent 2 dots. & Dark Dot Note 2. 1) + 2) : Max. 3 Note 3.
  • Page 48 Note 5. Distance between bright dots Count as defect Do not count as defect ≤ 5.9mm ≤ 5.9mm ≤ 5.9mm ≤ 5.9mm ≤ 5.9mm ≤ 5.9mm ≤ 5.9mm ≤ 5.9mm ≤ 5.9mm Combination with Bright Dot & Dark Combination with the different color Distance between the same colors Note 6.

  • Page 49: Polarizer Defects

    3.3 Polarizer Defects Items Criteria 0.01 ≤ W ≤ 0.05, 1.0 ≤ L ≤ 10.0, N ≤ 4 Scratch Linear 0.2 ≤ D ≤ 0.8, N ≤ 4 Dent Circular NOTE: D: Average Diameter D=(a+b)/2 W: Width, L: Length, N: Quantity Linear: a>2b, Circular: a≤2b Extraneous substances, which can be wiped out, like Finger...

  • Page 50: Safety Test

    4. Safety Test • Destination : All over the world • Applicable standards : UL60950/C-UL/EN60950 • Unit class : Class I units (the units protected against electric shocks by protective earthing, or those equipped with 3-core power cords) • Ratings : AC100 - 240V 50/60Hz 1.5A/0.8A 4.1 Input Current Measurements Under the measuring conditions specified below, an input current should be measured while the 50Hz input...

  • Page 51: Dielectric Strength Test

    4.3 Dielectric Strength Test To confirm the freedom from insulation breakdown, testing should be carried out under the conditions specified below. 1) Measuring conditions • Measuring instrument: Dielectric strength tester (The specified voltage should be maintained in the state that a current of 10mA is carried.) •...

  • Page 52: Insulation Resistance Test

    4.5 Insulation Resistance Test An insulation resistance should be measured under the conditions specified below, in order to confirm that the requirements of the judgment standard are met. 1) Measuring conditions • Measuring instrument: 500V DC MEGOHM Meter • Testing point: Between the power circuit block and the exposed metallic block (D-SUB connector) •...

  • Page 53: Plug & Play Communication Inspection

    5. PLUG & PLAY Communication Inspection 5.1 System Connection This system should be connected as shown below. Fig.5.1.1 D-SUB connector connection Fig 5.1.2 DVI-D connector connection 5-13...

  • Page 54: Input Signal

    The pins of there points cuts it. Fig 5.1.3 DVI to D-SUB Signal Cable (Special) Fig 5.1.4 DDC Communication I/F BOARD 5.2 Input Signal Horizontal synchronization frequency: Not specified. Vertical synchronization frequency: Not specified. 5.3 Program Service tool Ver. 3.27 (Part No. 599910735) 5-14...

  • Page 55: Operations

    5.4 Operation 5.4.1 EDID Data Inspection and Writing to the D-SUB Connector (Analog) 1) Connect the EDID data-writing unit with jigs, etc. 2) Copy all the files of the service tool Ver. 3.27 in a proper directory. 3) Start [Service2.EXE] of the service tool Ver. 3.27. 4) When the screen as shown below appears, check to [LCD] of [Monitor Type] and press the [START] button.
  • Page 56 6) Enter Factory mode, a tag 4 is select by the ”6(DOWN)” or ”5(UP)” key move cursor to EDID WP (EDID write-protection). 7) A numerical value is set to "0" (OFF) and EDID write-protection is canceled. 8) When the screen as shown below appears, check to [EDID_READ] and press the [OK] button. 9) When the screen as shown below appears, confirm that the correct data are displayed in the columns of EDID DATA CONTENTS and Serial information.
  • Page 57 11) When the screen as shown below appears, examine the serial number of the unit, enter an input in the column of [Input Serial No.] through the keyboard, and press the [Input OK] button. Enter an input in the column of [.Year=> ] in manufactured year(A.D. four digits) and [Month=>] in manufactured month through the keyboard, and press the [Input OK] button.

  • Page 58: Edid Data Inspection And Writing To The Dvi-D Connector (Digital)

    13) If the writing of EDID data is completed normally, EDID WP will be returned to "1 (ON)" and Factory mode will be closed. 14) Upon the normal completion of EDID data writing, press the [Exit] button to close the program. 5.4.2 EDID Data Inspection and Writing to the DVI Connector (Digital) 1) Connect the EDID data writing unit with jigs, etc.

  • Page 59: Edid Data File

    5.5 EDID Data File EDID date: LCD1970NX_A.edi (ANALOG) Note1 Note2 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note4 EDID date: LCD1970NX_D.edi (DIGITAL) Note1 Note2 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note3 Note4 Week of manufacture = Month of manufacture ×...

  • Page 60: Appendix Reference Signal Timings

    Appendix Reference Signal Timings H-Video H active Horizontal H back H front H pulse H total V-Video V active Vertical V back V front V pulse V total 5-20...
  • Page 61 Item Abbreviation VGA 640x480 60Hz MAC 640x480 Pixel frequency 25.175MHz 30.24MHz Horizontal frequency 31.47kHz 35.00kHz Line Time total 31.78us 800CLK 28.57us 864CLK Horizontal active display 25.42us 640CLK 21.16us 640CLK Horizontal sync pulse 3.81us 96CLK 2.12us 64CLK Horizontal back porch 1.91us 48CLK 3.17us 96CLK...
  • Page 62 Item Abbreviation VESA 800x600 56Hz VESA 800x600 60Hz Pixel frequency 36.00MHz 40.00MHz Horizontal frequency 35.16kHz 37.88kHz Line Time total 28.44us 1024CLK 26.40us 1065CLK Horizontal active display 22.22us 800CLK 20.00us 800CLK Horizontal sync pulse 2.00us 72CLK 3.20us 128CLK Horizontal back porch 3.56us 128CLK 2.20us...
  • Page 63 Item Abbreviation VESA 1024x768 70Hz VESA 1024x768 75Hz Pixel frequency 75.000MHz 78.75MHz Horizontal frequency 56.48kHz 60.02kHz Line Time total 17.71us 1328CLK 16.66us 1312CLK Horizontal active display 13.65us 1024CLK 13.00us 1024CLK Horizontal sync pulse 1.81us 136CLK 1.22us 96CLK Horizontal back porch 1.92us 144CLK 2.24us...
  • Page 64 MODE Item Abbreviation VESA 1280x1024 75Hz Pixel frequency 135.00MHz Horizontal frequency 79.98kHz Line Time total 12.50us 1688CLK Horizontal active display 9.48us 1280CLK Horizontal sync pulse 1.07us 144CLK Horizontal back porch 1.84us 248CLK Horizontal front porch 0.12us 16CLK Horizontal sync polarity Vertical Frequency 75.03Hz Frame time total...
  • Page 65 CIRCUIT DESCRIPTION TABLE OF CONTENTS Page 1. Block Diagram ........................7-2 2. Power Circuit .......................... 7-3 2.1 Power Input ........................7-3 2.2 DC to DC Circuit........................ 7-3 2.3 Panel Vcc Control ......................7-3 3. Microprocessor Control Circuit ....................7-3 3.1 Clock Circuit ........................7-3 3.2 I C Buses ..........................
  • Page 66 1. Block Diagram...

  • Page 67: Power Circuit

    2. Power Circuit 2.1 Power Input 15V & 5V DC input from Power Board through S402 to interface. The 12V is provide Panel Vcc. The 5V is provide Flash Memory, and EEPROM. 2.2 DC to DC Circuit U401 is used generate the system power. It provides low-dropout voltage output 3.3V and 1.8V to provide Scalar.
  • Page 68 3.3.2 Scalar Control U403 Pin178 input scalar reset signal. 3.3.3 LED Control U403 pin 83 controls Q404 for Green LED. U403 pin 82 controls Q403 for Amber LED. 3.3.4 Data Memory Flash Memory IC (U405) store F/W parameters. 4. Scalar The scalar IC (U403) is analog and digital interface input.
  • Page 69 REPLACEMENT PARTS LIST TABLE OF CONTENTS Page Model LCD1970NX (B) (For Europe) ..................8-2 Model LCD1970NX-BK (B) (For Europe) .................. 8-9 Model LCD1970NX (C) (For China) ..................8-16 Model LCD1970NX-BK (C) (For China) ................... 8-23...
  • Page 70 REPLACEMENT PARTS LIST(For Europe) The components specified for Model LCD1970NX(B) For Europe SYMBOL DESCRIPTION (NPG Part Number) *** ICS *** U401 E1A12251 IC SMD MW1537BCM5 U402 EQ500117 CHIP FET P HAT1053M U403 E1A12271 IC SMD GM5221-LF-BC U405 EHA12331 IC SMD A290021TL-70 U406 EHA50051 IC SMD 24LC02B...
  • Page 71 For Europe SYMBOL DESCRIPTION (NPG Part Number) ZD408 EYD40562 CHIP DIODE ZENER UDZS5.6B *** RELAYS & SWITCHES *** SW801 J3A00041 SW SMD TACT TSXH-2G SW802 J3A00041 SW SMD TACT TSXH-2G SW803 JCA00031 SW SMD TACT TMFV-1502 SW804 J3A00041 SW SMD TACT TSXH-2G SW805 J3A00041 SW SMD TACT TSXH-2G...
  • Page 72 For Europe SYMBOL DESCRIPTION (NPG Part Number) B434 80000991 BEAD WBR6H-3T-R7K-B5 B435 80000991 BEAD WBR6H-3T-R7K-B5 B436 HM017021 L BEAD SMD MCB1608S121G B437 HM017021 L BEAD SMD MCB1608S121G B439 HM017021 L BEAD SMD MCB1608S121G B442 HM017021 L BEAD SMD MCB1608S121G *** ELECTRICAL PARTS & MISCELLANEOUS PARTS *** 3A684091 TFT LM190E02-A4K5 (NMV Part Number)
  • Page 73 For Europe SYMBOL DESCRIPTION (NPG Part Number) R412 FM010103 CHIP RES 1/10W(T) 5% 10KO R416 FM010103 CHIP RES 1/10W(T) 5% 10KO R420 FM010103 CHIP RES 1/10W(T) 5% 10KO R421 FM010103 CHIP RES 1/10W(T) 5% 10KO R422 FM010103 CHIP RES 1/10W(T) 5% 10KO R428 FM010103 CHIP RES 1/10W(T) 5% 10KO...
  • Page 74 For Europe SYMBOL DESCRIPTION (NPG Part Number) R478 FM100222 CHIP RES 1/8W(T) 5% 2.2KO R479 FM010103 CHIP RES 1/10W(T) 5% 10KO R480 FM010103 CHIP RES 1/10W(T) 5% 10KO R481 FM010103 CHIP RES 1/10W(T) 5% 10KO R482 FM010103 CHIP RES 1/10W(T) 5% 10KO R483 FM100332 R SMD METAL 1/8W 3.3K J T...
  • Page 75 For Europe SYMBOL DESCRIPTION (NPG Part Number) C434 GX410423 C SMD X7R 0.1U 16V K 0603 C435 GGM22610 C ELE105 22U 10V M(T) LOW C436 GX410423 C SMD X7R 0.1U 16V K 0603 C437 GGM22610 C ELE105 22U 10V M(T) LOW C438 GX410423 C SMD X7R 0.1U 16V K 0603...
  • Page 76 For Europe SYMBOL DESCRIPTION (NPG Part Number) C488 GX410423 C SMD X7R 0.1U 16V K 0603 C489 GX410423 C SMD X7R 0.1U 16V K 0603 C490 GX410423 C SMD X7R 0.1U 16V K 0603 C491 GX410423 C SMD X7R 0.1U 16V K 0603 C492 GX410423 C SMD X7R 0.1U 16V K 0603...
  • Page 77 REPLACEMENT PARTS LIST(For Europe) The components specified for Model LCD1970NX-BK(B) For Europe SYMBOL DESCRIPTION (NPG Part Number) *** ICS *** U401 E1A12251 IC SMD MW1537BCM5 U402 EQ500117 CHIP FET P HAT1053M U403 E1A12271 IC SMD GM5221-LF-BC U405 EHA12331 IC SMD A290021TL-70 U406 EHA50051 IC SMD 24LC02B...
  • Page 78 For Europe SYMBOL DESCRIPTION (NPG Part Number) ZD408 EYD40562 CHIP DIODE ZENER UDZS5.6B *** RELAYS & SWITCHES *** SW801 J3A00041 SW SMD TACT TSXH-2G SW802 J3A00041 SW SMD TACT TSXH-2G SW803 JCA00031 SW SMD TACT TMFV-1502 SW804 J3A00041 SW SMD TACT TSXH-2G SW805 J3A00041 SW SMD TACT TSXH-2G...
  • Page 79 For Europe SYMBOL DESCRIPTION (NPG Part Number) B434 80000991 BEAD WBR6H-3T-R7K-B5 B435 80000991 BEAD WBR6H-3T-R7K-B5 B436 HM017021 L BEAD SMD MCB1608S121G B437 HM017021 L BEAD SMD MCB1608S121G B439 HM017021 L BEAD SMD MCB1608S121G B442 HM017021 L BEAD SMD MCB1608S121G *** ELECTRICAL PARTS & MISCELLANEOUS PARTS *** 3A684091 TFT LM190E02-A4K5 (NMV Part Number)
  • Page 80 For Europe SYMBOL DESCRIPTION (NPG Part Number) R412 FM010103 CHIP RES 1/10W(T) 5% 10KO R416 FM010103 CHIP RES 1/10W(T) 5% 10KO R420 FM010103 CHIP RES 1/10W(T) 5% 10KO R421 FM010103 CHIP RES 1/10W(T) 5% 10KO R422 FM010103 CHIP RES 1/10W(T) 5% 10KO R428 FM010103 CHIP RES 1/10W(T) 5% 10KO...
  • Page 81 For Europe SYMBOL DESCRIPTION (NPG Part Number) R478 FM100222 CHIP RES 1/8W(T) 5% 2.2KO R479 FM010103 CHIP RES 1/10W(T) 5% 10KO R480 FM010103 CHIP RES 1/10W(T) 5% 10KO R481 FM010103 CHIP RES 1/10W(T) 5% 10KO R482 FM010103 CHIP RES 1/10W(T) 5% 10KO R483 FM100332 R SMD METAL 1/8W 3.3K J T...
  • Page 82 For Europe SYMBOL DESCRIPTION (NPG Part Number) C434 GX410423 C SMD X7R 0.1U 16V K 0603 C435 GGM22610 C ELE105 22U 10V M(T) LOW C436 GX410423 C SMD X7R 0.1U 16V K 0603 C437 GGM22610 C ELE105 22U 10V M(T) LOW C438 GX410423 C SMD X7R 0.1U 16V K 0603...
  • Page 83 For Europe SYMBOL DESCRIPTION (NPG Part Number) C488 GX410423 C SMD X7R 0.1U 16V K 0603 C489 GX410423 C SMD X7R 0.1U 16V K 0603 C490 GX410423 C SMD X7R 0.1U 16V K 0603 C491 GX410423 C SMD X7R 0.1U 16V K 0603 C492 GX410423 C SMD X7R 0.1U 16V K 0603...
  • Page 84 REPLACEMENT PARTS LIST(For China) The components specified for Model LCD1970NX(C) For China SYMBOL DESCRIPTION (NMV Part Number) *** ICS *** U401 79PQ7789 IC SMD MW1537BCM5 U402 79PQ5258 CHIP FET P HAT1053M U403 79PQ7791 IC SMD GM5221-LF-BC U405 79PQ7796 IC SMD A290021TL-70 U406 79PQ5880 IC SMD 24LC02B...
  • Page 85 For China SYMBOL DESCRIPTION (NMV Part Number) ZD408 79PQ5250 CHIP DIODE ZENER UDZS5.6B *** RELAYS & SWITCHES *** SW801 79PQ7801 SW SMD TACT TSXH-2G SW802 79PQ7801 SW SMD TACT TSXH-2G SW803 79PQ7802 SW SMD TACT TMFV-1502 SW804 79PQ7801 SW SMD TACT TSXH-2G SW805 79PQ7801 SW SMD TACT TSXH-2G...
  • Page 86 For China SYMBOL DESCRIPTION (NMV Part Number) B434 79PQ1233 BEAD WBR6H-3T-R7K-B5 B435 79PQ1233 BEAD WBR6H-3T-R7K-B5 B436 79PQ5850 L BEAD SMD MCB1608S121G B437 79PQ5850 L BEAD SMD MCB1608S121G B439 79PQ5850 L BEAD SMD MCB1608S121G B442 79PQ5850 L BEAD SMD MCB1608S121G *** ELECTRICAL PARTS & MISCELLANEOUS PARTS *** 3A684091 TFT LM190E02-A4K5 P402...
  • Page 87 For China SYMBOL DESCRIPTION (NMV Part Number) R408 79PQ5675 CHIP RES 1/10W(T) 5% 10KO R409 79PQ7910 R SMD METAL 1/10W 249 F 0 R410 79PQ5675 CHIP RES 1/10W(T) 5% 10KO R411 79PQ5675 CHIP RES 1/10W(T) 5% 10KO R412 79PQ5675 CHIP RES 1/10W(T) 5% 10KO R416 79PQ5675 CHIP RES 1/10W(T) 5% 10KO...
  • Page 88 For China SYMBOL DESCRIPTION (NMV Part Number) R474 79PQ5277 CHIP RES 1/10W(T) 5% 4.7K R475 79PQ5277 CHIP RES 1/10W(T) 5% 4.7K R476 79PQ5272 CHIP RES 1/10W(T) 5% 100O R477 79PQ5272 CHIP RES 1/10W(T) 5% 100O R478 79PQ5681 CHIP RES 1/8W(T) 5% 2.2KO R479 79PQ5675 CHIP RES 1/10W(T) 5% 10KO...
  • Page 89 For China SYMBOL DESCRIPTION (NMV Part Number) C430 79PQ5240 C SMD X7R 0.1U 16V K 0603 C431 79PQ5240 C SMD X7R 0.1U 16V K 0603 C432 79PQ7913 C ELE105 1U 50V M T PW C433 79PQ5355 C SMD X7R 0.01U 50V K 060 C434 79PQ5240 C SMD X7R 0.1U 16V K 0603...
  • Page 90 For China SYMBOL DESCRIPTION (NMV Part Number) C484 79PQ5244 C SMD C0G 47P 50V J 0603 C485 79PQ5244 C SMD C0G 47P 50V J 0603 C486 79PQ5240 C SMD X7R 0.1U 16V K 0603 C487 79PQ5240 C SMD X7R 0.1U 16V K 0603 C488 79PQ5240 C SMD X7R 0.1U 16V K 0603...
  • Page 91 REPLACEMENT PARTS LIST(For China) The components specified for Model LCD1970NX-BK(C) For China SYMBOL DESCRIPTION (NMV Part Number) *** ICS *** U401 79PQ7789 IC SMD MW1537BCM5 U402 79PQ5258 CHIP FET P HAT1053M U403 79PQ7791 IC SMD GM5221-LF-BC U405 79PQ7796 IC SMD A290021TL-70 U406 79PQ5880 IC SMD 24LC02B...
  • Page 92 For China SYMBOL DESCRIPTION (NMV Part Number) ZD408 79PQ5250 CHIP DIODE ZENER UDZS5.6B *** RELAYS & SWITCHES *** SW801 79PQ7801 SW SMD TACT TSXH-2G SW802 79PQ7801 SW SMD TACT TSXH-2G SW803 79PQ7802 SW SMD TACT TMFV-1502 SW804 79PQ7801 SW SMD TACT TSXH-2G SW805 79PQ7801 SW SMD TACT TSXH-2G...
  • Page 93 For China SYMBOL DESCRIPTION (NMV Part Number) B434 79PQ1233 BEAD WBR6H-3T-R7K-B5 B435 79PQ1233 BEAD WBR6H-3T-R7K-B5 B436 79PQ5850 L BEAD SMD MCB1608S121G B437 79PQ5850 L BEAD SMD MCB1608S121G B439 79PQ5850 L BEAD SMD MCB1608S121G B442 79PQ5850 L BEAD SMD MCB1608S121G *** ELECTRICAL PARTS & MISCELLANEOUS PARTS *** 3A684091 TFT LM190E02-A4K5 P402...
  • Page 94 For China SYMBOL DESCRIPTION (NMV Part Number) R408 79PQ5675 CHIP RES 1/10W(T) 5% 10KO R409 79PQ7910 R SMD METAL 1/10W 249 F 0 R410 79PQ5675 CHIP RES 1/10W(T) 5% 10KO R411 79PQ5675 CHIP RES 1/10W(T) 5% 10KO R412 79PQ5675 CHIP RES 1/10W(T) 5% 10KO R416 79PQ5675 CHIP RES 1/10W(T) 5% 10KO...
  • Page 95 For China SYMBOL DESCRIPTION (NMV Part Number) R474 79PQ5277 CHIP RES 1/10W(T) 5% 4.7K R475 79PQ5277 CHIP RES 1/10W(T) 5% 4.7K R476 79PQ5272 CHIP RES 1/10W(T) 5% 100O R477 79PQ5272 CHIP RES 1/10W(T) 5% 100O R478 79PQ5681 CHIP RES 1/8W(T) 5% 2.2KO R479 79PQ5675 CHIP RES 1/10W(T) 5% 10KO...
  • Page 96 For China SYMBOL DESCRIPTION (NMV Part Number) C430 79PQ5240 C SMD X7R 0.1U 16V K 0603 C431 79PQ5240 C SMD X7R 0.1U 16V K 0603 C432 79PQ7913 C ELE105 1U 50V M T PW C433 79PQ5355 C SMD X7R 0.01U 50V K 060 C434 79PQ5240 C SMD X7R 0.1U 16V K 0603...
  • Page 97 For China SYMBOL DESCRIPTION (NMV Part Number) C484 79PQ5244 C SMD C0G 47P 50V J 0603 C485 79PQ5244 C SMD C0G 47P 50V J 0603 C486 79PQ5240 C SMD X7R 0.1U 16V K 0603 C487 79PQ5240 C SMD X7R 0.1U 16V K 0603 C488 79PQ5240 C SMD X7R 0.1U 16V K 0603...

  • Page 98: Block Diagram

    BLOCK DIAGRAM S401 to Panel U408 24LC16 U402 SW LVDS +12V HAT1053 X401 14.3MHz S402 Inverter control Powe B/D U403 Mute S404 to Key B/D Scaler 3.3V Gm5221 U401 MW1537 1.8V S403 to G-probe U405 ROM A29002 U409 74LVC14 R,G,B R,G,B U406 24LC02 P402 DSUB...
  • Page 99 MODEL LCD1970NX(B)/(C) SCHEMATIC DIAGRAM MAIN BOARD (Display) (1/4) B401 NC S401 Si3457DV B402 U402 LV_O[0..9] R401 MHC1608S121P LV_O0 RXO0- +12V + C401 PANEL_VCC LV_O1 RXO0+ LV_O2 RXO1- B403 LV_O3 RXO1+ MHC1608S121P R402 LV_O4 RXO2- C402 C403 LV_O5 RXO2+ R403 33PF 33PF LV_O6 RXOC-...
  • Page 100 MODEL LCD1970NX(B)/(C) SCHEMATIC DIAGRAM MAIN BOARD (Scaler) (2/4) +3.3V +3.3V 3.3V_TMDS +3.3V 3.3V_PLL 1.8V_AVDD 3.3V_AVDD B409 B436 B410 3.3V_DVDD 1.8V_TMDS 1.8V_PLL CVDD_1.8 3.3V_LVDS MCB1608S121G MCB1608S121G MCB1608S121G C422 C423 C424 C425 C427 C428 C429 C430 C431 C433 + C421 + C426 + C432 0.1uF 0.1uF...
  • Page 101 MODEL LCD1970NX(B)/(C) SCHEMATIC DIAGRAM MAIN BOARD (DVI/VGA Input) (3/4) D401 RBD495D C468 0.01uF B417 MCB1608H750G R437 47R 1% BLUE+ BLUE+ D402 SCS217 C469 P402 R438 75R 1% C470 0.01uF ADC_GND BLUE- R439 84.5R PC_+5V C471 0.1uF C472 0.1uF ADC_GND ADC_GND SOG_MCSS 2 U406 AT24C02...
  • Page 102 MODEL LCD1970NX(B)/(C) SCHEMATIC DIAGRAM MAIN BOARD (Key Pad EEPROM) (4/4) U408 AT24C16 R476 100R R477 100R stuffing Option Q403 Q404 DTC114TKA DTC114TKA S404 B422 MCB1608S121G LED_GREEN 2 B423 MCB1608S121G LED_AMBER 2 B424 MCB1608S121G RESET B425 MCB1608S121G SELECT B426 MCB1608S121G LEFT B427 MCB1608S121G RIGHT...

  • Page 103: Packing Specification

    Packing Specification Caution Sheet (Bver. MANUAL ASSY only) Put it on EPS top and attach by tape. POWER CORD FILLER T SIGNAL CABLE SHEET SETUP FILLER B 11-1...
  • Page 104 For Europe For China ITEM DESCRIPTION Cabinet color Version (NPG Part (NMV Part Number) Number) SHEET CAUTION PISA19 B 15802261 White/Black MANUAL ASSY LCD1970NX B 15503533 White/Black MANUAL ASSY LCD1970NX C 79PQ7894 White/Black PW CORD EU 2M R-PLUG GR RG030031 White PW CORD EU 2M BLK WANSHIN RG030051...

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Multisync lcd1970v

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