Page 1: Service Manual
PART NO. 599910603 SERVICE MANUAL  MultiSync LCD1920NX COLOR MONITOR MODELS LCD1920NX (A)/-BK(A)/(B)/-BK(B) NEC-MITSUBISHI ELECTRIC VISUAL SYSTEMS CORPORATION AUGUST 2002 200208 08EA1AAF 08EA2AAF 08EA1ABF 08EA2ABF...
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...
Page 4 USER'S MANUAL 1. A Version MultiSync ® LCD1920NX...
Page 5: Table Of Contents
Index Warning ........................1 Getting Started ..................... 2 Adjusting the Monitor ..................3 Quick Installation ....................4 Operations ......................6 OSD Main Menu .......................7 Recommended Use ....................10 Specifications ....................... 12 Features ......................... 13 Troubleshooting ....................14 References ......................15 Limited Warranty ....................
Page 6: Warning
C22.2 No. 950. CAN/CSA FCC Information 1. Use the attached specified cables with the MultiSync LCD1920NX (L19GC061) color monitor so as not to interfere with radio and television reception. (1) Please use the supplied power cord or equivalent to ensure FCC compliance.
Page 7: Getting Started
Getting Started Congratulations on your purchase of this LCD Monitor. Please read this section carefully to get an instant understanding of this product and its correct operations. Important! Please keep the original carton and all packing materials for future shipping needs. Package Contents Your LCD Monitor package includes the following items: •...
Page 8: Adjusting The Monitor
Adjusting the Monitor Press down on the stand and gently adjust the monitor to a suitable viewing angle (see Figure below). Please note that this monitor can only be tilted forward to 5 degrees, backward to 20 degrees, and swiveled 90 degrees left/right. To prevent damage to the monitor, do not press the screen over its tolerant angles.
Page 9: Quick Installation
Quick Installation • Make sure the computer is turned off. • Attach the female end of the power cord (Indication E) to the AC adapter (Indication D), then plug the AC adapter connector to the power “DC-IN (Indication A)” jack of the LCD monitor. •...
Page 10 Quick Installation Remove Monitor Stand for Mounting Non-abrasive surface To prepare the monitor for alternate mounting purposes: 1. Disconnect all cables. 2. Place monitor face down on a non-abrasive surface (Figure R.1). 3. Remove the 4 screws connecting the monitor to the stand and lift off the stand assembly (Figure R.1).
Page 11: Operations
Operations To turn the monitor on or off, push the power button (Indication E) on the front of the monitor. When the power light (Indication F) turns green, the LCD is ready to use. Function Keys A. MENU 1. Press this button to turn on the OSD (On Screen Display) main menu.
Page 12: Osd Main Menu
OSD Main Menu For screen adjustments, press the [MENU] button to display the OSD (On-Screen Display) Main Menu shown below. Press the [+] or [–] button to scroll up or down the menu to your required options. Please note that the OSD will automatically turn off in 30 seconds without any manipulation or by simply pressing the [MENU] button for 2 seconds.
Page 13 OSD Main Menu –continued LCD ADJUST Sub-Menu (Analog input only): Under the Main Menu, select LCD ADJUST using the [+] or [–] button, then press [MENU] button to enter LCD ADJUST Sub-Menu. PC/MAC: Switching between PC at 800X600 resolution and MAC at 832X624 resolution, using [+] or [–] button.
Page 14 OSD Main Menu MISC Sub-Menu Under the Main Menu, select MISC using the [+] or [–] button, then press [MENU] button to enter MISC Sub-Menu. RESOLUTION NOTIFIER: This optimal resolution is 1280 x 1024. If ON is selected, a message will appear on the screen after 30 seconds, notifying you that the resolution is not at 1280 x 1024.
Page 15: Recommended Use
Recommended Use Safety Precautions and Maintenance FOR OPTIMUM PERFORMANCE, PLEASE NOTE THE FOLLOWING WHEN SETTING UP AND USING THE MULTISYNC LCD COLOR MONITOR: ® • DO NOT OPEN THE MONITOR. There are no user serviceable parts inside and opening or removing covers may expose you to dangerous shock hazards or other risks.
Page 16 Do not use primary color blue on a dark background, as it is difficult to see and may produce eye fatigue to insufficient contrast For more detailed information on setting up a healthy work environment, call NEC at (800) 632-4662, NEC FastFacts information at (800) 366-0476 and request ™...
Page 17: Specifications
Specifications Monitor MultiSync ® ™ 1920NX Specifications Monitor Size 19.0" (full 19.0" viewable diagonal area) Type TFT (Thin Film Transistor), Active Matrix Panel 0.294mm pixel pitch Color Filter RGB Vertical Stripe Glass surface Anti-Glare Maximum Left/right 85°/85° Viewing Angles Up/Down 85°/85°...
Page 18: Features
Features Reduced Footprint: Provides the ideal solution for environments requiring superior image quality but with size and weight limitations. The monitor’s small footprint and low weight allow it to be moved or transported easily from one location to another. AccuColor Control Systems: Allows you to adjust the colors on your screen and ®...
Page 19: Troubleshooting
”ghost” of that image remains, the monitor should be turned off for one hour to erase the image. NOTE: As with all personal display devices, NEC-Mitsubishi Electronics Display of America recommends using a screen saver at regular intervals whenever the screen is idle.
Page 20: References
References • BBS (978) 742-8706 NEC-Mitsubishi Electronics Display of America Remote Bulletin Board System is an electronic service accessible with your system and a modem. Communica- tion parameters are: 300/1200/2400/9600/14.4k/28.8k/33.6k bps, no parity, 8-data bits, 1 stop bit • Customer Service/...
Page 21: Limited Warranty
Product may vary. Therefore, suitability of a Product for a specific purpose or application must be determined by consumer and is not warranted by NMD-A. For the name of your nearest authorized NEC-Mitsubishi Electronics Display service facility, contact NEC-Mitsubishi Electronics Display of America at 1-800-632-4662. 1-18...
Page 22: Tco'95
TCO’95 MultiSync LCD1920NX (L19GC061) Black Model Congratulations! You have just purchased a TCO’95 approved and labeled product! Your choice has provided you with a product developed for professional use. Your purchase has also contributed to reducing the burden on the environment and also, to the further development of environmentally adapted electronics products.
Page 23 TCO’95 reproductive damage in fisheating birds and mammals, due to the bio-accumulative* processes. Flame retardants have been found in human blood and researchers fear that disturbances in foetus development may occur. TCO’95 demand requires that plastic components weighing more than 25 grams must not contain organically bound chlorine and bromine.
Page 24: Tco'99
TCO’99 MultiSync LCD1920NX (L19GC061) White Model Congratulations! You have just purchased a TCO’99 approved and labeled product! Your choice has provided you with a product devel- oped for professional use. Your purchase has also contributed to reducing the burden on the environment and also to the further development of environmentally adapted electronics products.
Page 25 TCO’99 accumulative* processes. Flame retardants have been found in human blood and researchers fear that disturbances in foetus development may occur. TCO’99 demand requires that plastic components weighing more than 25 grams must not contain flame retardants with organically bound chlorine and bromine. Flame retardants are allowed in the printed circuit boards since no substitutes are available.
Page 26 Council Directive 73/23/EEC: – EN 60950 Council Directive 89/336/EEC: – EN 55022 – EN 61000-3-2 – EN 61000-3-3 – EN 55024 and marked with NEC-Mitsubishi Electric Visual Systems Corporation 4-13-23, Shibaura, Minato-Ku Tokyo 108-0023, Japan 1-23...
Page 27 2. B Version MultiSync LCD1920NX User’s Manual UÏivatelská pﬁíruãka Bedienerhandbuch δηγίες ρήσης Manual del usuario Manuel Utilisateur Manuale utente Gebruikershandleiding Podr´cznik u˝ytkownika Руководство пользователя Kullan∂c∂ Klavuzu 1-24...
Page 28: Declaration Of Conformity
C-UL: Bears the C-UL Mark and is in compliance with Canadian Safety Regulations according to CAN/CSA C22.2 No. 950. FCC Information 1. Use the attached specified cables with the MultiSync LCD1920NX (L19GC061) color monitor so as not to interfere with radio and television reception.
Page 29 TCO’95 MultiSync LCD1920NX Black Model TCO’95 demand requires that plastic components weighing more than 25 grams must not contain organically bound chlorine and Congratulations! You have just purchased a TCO’95 bromine. approved and labeled product! Your choice has Lead** provided you with a product developed for professional use.
Page 30 TCO’99 MultiSync LCD1920NX White Model Lead** Congratulations! You have just purchased a Lead can be found in picture tubes, display screens, solders and TCO’99 approved and labeled product! Your choice capacitors. Lead damages the nervous system and in higher has provided you with a product developed for doses, causes lead poisoning.
Page 31: Avertissement
Index Warning, Caution ........English-1 Waarschuwing, Let op! ....Nederlands-1 Declaration ..........English-1 Kennisgeving ........Nederlands-1 Getting Started ........English-2 Aan de slag ........Nederlands-2 Adjusting the Monitor ......English-2 De monitor afstellen ......Nederlands-2 Quick Installation ........English-3 Snel installeren ........ Nederlands-3 Operations ..........
Page 32 English Deutsch Ελληνικά Español Français Italiano Nederlands Русский 1-29...
Page 33: Declaration Of The Manufacturer
Therefore, it should be read carefully in order to avoid any problems. Declaration Declaration of the Manufacturer We hereby certify that the colour monitor MultiSync LCD1920NX is in compliance with Council Directive 73/23/EEC: – EN 60950 Council Directive 89/336/EEC: –...
Page 34: Tco'95
Getting Started Congratulations on your purchase of this TFT LCD Monitor. Please read this section carefully to get instant understanding of this product and its correct operations. Important! Please keep the original carton and all packing materials for future shipping needs. Package Contents Your TFT LCD Monitor package includes the following items: •...
Page 35 Quick Installation • Make sure the computer is turned off. • Attach the female end of the power cord (Indication E) to the AC adapter (Indication D), then plug the AC adapter connector to the power “DC-IN (Indication A)” jack of the LCD monitor. •...
Page 36: Remove Monitor Stand For Mounting
Quick Installation - continued Remove Monitor Stand for Mounting To prepare the monitor for alternate mounting purposes: Non-abrasive 1. Disconnect all cables. surface 2. Place monitor face down on a non-abrasive surface (Figure R.1). 3. Remove the 4 screws connecting the monitor to the stand and lift off the stand assembly (Figure R.1).The monitor is now ready for mounting in an alternate manner.
Page 37: Function Keys
Operations Push the power button (Indication E) on the front of the LCD monitor to turn it on. When the power light (Indication F) turns green, the LCD is ready to use. Push the power switch button to turn off. Function Keys A.
Page 38 OSD Main Menu For screen adjustments, press the [MENU] button to display the OSD (On-Screen Display) Main Menu shown below. Press the [+] or [–] button to scroll up or down the menu to your required options. Please note that the OSD will automatically turn off in 30 seconds without any manipulation or by simply pressing the [MENU] button for 2 seconds.
Page 39 LANGUAGE: Selecting preferred language used in the OSD menus. Under Main Menu, scroll to Language using [+] or [–] button, then press [MENU] button to activate the function. Press [+] or [–] button to choose preferred Language, then press [MENU] to return to Main Menu. MAIN MENU: Returning to OSD main menu.
Page 40 Recommended Use Safety Precautions and Maintenance FOR OPTIMUM PERFORMANCE, PLEASE NOTE THE FOLLOWING WHEN SETTING UP AND USING THE MULTISYNC LCD COLOR MONITOR: • DO NOT OPEN THE MONITOR. There are no user serviceable parts inside and opening or removing covers may expose you to dangerous shock hazards or other risks.
Page 41 • If reflected light makes it hard for you to see your screen, use an anti-glare filter. • Clean the LCD monitor surface with a lint-free, non-abrasive cloth. Avoid using any cleaning solution or glass cleaner! • Adjust the monitor’s brightness and contrast controls to enhance readability. •...
Page 42 If an image was on the monitor for one hour and a “ghost” of that image remains, the monitor should be turned off for one hour to erase the image. NOTE: As with all personal display devices, NEC-Mitsubishi Electronics Display recommends using a screen saver at regular intervals whenever the screen is idle.
Page 43: Serial Number Information
Serial Number Information Refer to the serial number information shown below. EX.) SERIAL NUMBER LABEL Model : LCD1920NX : LCD1920NX-BK SERIAL NO. : g g g g g g g g g Manufactured Year : ( Last digit ) Manufactured Month : January to September : 1 to 9 October :...
Page 44 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. SYMBOL CODE DESCRIPTION...
Page 45 SYMBOL CODE DESCRIPTION TAP. SCREW-TB #3.0*10.0L,NI SYMBOL CODE DESCRIPTION COLOR 79PZ0166 BACK COVER CAB. LCD1920NX White 79PZ0172 BACK COVER CAB. LCD1920NX Black...
Page 46 SYMBOL CODE DESCRIPTION MAC. SCREW-MB M3.0*4.0L,Zn-Cc SYMBOL CODE DESCRIPTION MAC. SCREW-MRFW M3.0*4.0L,NI NUT #4-40*5.0L (BRONZE + Ni) 79PZ0014 LCD MAIN BD ASS'Y 79PZ0008 INVERTER DC-AC T65I008.00...
Page 47 SYMBOL CODE DESCRIPTION TAP. SCREW-TB #3.0*10.0L,NI 79PZ0013 LCD DISPLAY BD ASS'Y SYMBOL CODE DESCRIPTION COLOR TAP. SCREW-TB #3.0*10.0L,NI 79PZ0165 PANEL CAB. LCD1920NX (NEC White 79PZ0171 PANEL CAB. LCD1920NX (NEC Black...
Page 48 SYMBOL CODE DESCRIPTION COLOR 79PZ0162 POWER BUTTON LCD1920NX White 79PZ0009 POWER BUTTON LCD1920NX Black 79PZ0165 PANEL CAB. LCD1920NX (NEC White 79PZ0171 PANEL CAB. LCD1920NX (NEC Black SYMBOL CODE DESCRIPTION MAC.SCREW-MBSFW M3.0*12.0L.Zn-Cc...
Page 49 SYMBOL CODE DESCRIPTION 79PZ0004 LCD MODULE 19.0 TFT FLC4"...
Page 50 SYMBOL CODE DESCRIPTION COLOR MAC. SCREW-MPSWF M4.0*10.0L,ZN HINGE LEFT LCD1920NX HINGE RIGHT LCD1920NX 79PZ0163 BASE CAB. LCD1920NX White 79PZ0001 BASE CAB. LCD1920NX Black SYMBOL CODE DESCRIPTION 79PZ0032 BASE FOOT (18.0*3.0T) 79PZ0003 BASE ROTATE LCD1920NX SWIVEL SHEET (187*0.5) MAC. SCREW-MB M3.0*4.0L,Zn-Cc...
Page 51 SYMBOL CODE DESCRIPTION BASE BRACKET + HINGE HOLDER LCD1920NX MAC. SCREW-MB M3.0*4.0L,Zn-Cc...
Page 52 ADJUSTMENT PROCEDURES TABLE OF CONTENTS Page 1. Application ........................... 4-2 2. Basic operation ........................4-2 2.1 General conditions ......................4-2 2.2 Basic operation ........................4-2 2.2.1 Video input change ......................4-2 2.2.2 Factory mode ........................4-3 3. Set adjustments ........................4-4 3.1 Application .........................
Page 53: Application
1. Application This specification shall be applied to the adjustment of the LCD1920NX set. 2. Basic operation 2.1 General conditions Unless otherwise specified, adjustments shall be carried out under the following conditions: 1) Power source voltage : AC 100 - 120V/ 220 - 240V ± 10%, 50/60Hz 2) Equipment to be used : Equipment that can generate an output of the adjusted LCD1920NX unit or equivalent.
Page 54: Factory Mode
2.2.2 Factory mode At the time of adjustment of this model, a suggestion may be given to enter the user (factory) mode. This will be explained below. (1) User mode: 1) Press the power Key and verify that LED is green. Press MENU to into OSD MENU. 2) Select COLOR and into color adjust.
Page 55: Set Adjustments
3. Set adjustments 3.1 Application This adjustment specification is applicable when the LCD MAIN BD ASSY (MAIN PWB) or the E PROM is replaced. 3.2 Source voltage 100-120V / 220-240V ±10% 50 / 60Hz 3.3 Adjustments Using DDC-2Bi communication, the initial value data of the color temperature 9300K are written in. 3.3.1 Connection (1) Configuration The unit configuration and the method of connection for this system are described below.
Page 56: Data Writing Procedures
3.3.2 Data writing procedures (1) Connect the data writing unit, jigs, and others for the reception of VESA 1280 × 1024@60Hz (all white). (2) Let the data writing unit stay in the factory mode. (Refer to 2.2.2 User service mode / factory mode) (3) Copy all the files of RGB Adjust Software in an appropriate directory.
Page 57: Input Video Signal
3.4 Input video signal Preset Mode No. VESA Signal Name 1280*1024 (60) Resolution 1280*1024 Dot Clock (MHz) 108.000 (kHz) 63.981 (Hz) 60.020 Total (dot) 1688 (uS) 15.630 Disp (dot) 1280 (uS) 11.852 Front (dot) (uS) 0.444 Sync Pulse (dot) (uS) 1.037 Back (dot)
Page 58: Setting Before Shipment
3.5 Setting before shipment CONTRAST : Approx. 60% (with an analog signal input) / Approx. 80% (with a digital signal input) BRIGHTNESS : Approx. 80% COLOR : R, G, B at MAX. in all cases (User) LANGUAGE : ENGLISH RESOLUTION NOTIFIER : ENABLE H-OSD POSITION / V-OSD POSITION : Center of the screen SMOOTHING...
Page 59 INSPECTION TABLE OF CONTENTS Page 1. Set Inspection ......................5-2 1.1 Application ......................5-2 1.2 Inspection conditions .................... 5-2 1.2.1 Power source voltage ..................5-2 1.2.2 Equipment to be used ..................5-2 1.2.3 Brightness setting ....................5-2 1.2.4 Inspection mode ....................5-2 1.2.5 OSD functions .....................
Page 60: Set Inspection
1. Set Inspection 1.1 Application The inspection procedures specified in this item shall be applied to the inspection of the LCD1920Nx unit. 1.2 Inspection conditions Unless otherwise specified, inspection shall be carried out under the following conditions. 1.2.1 Power source voltage AC voltage: 100 - 120V/220 - 240V ±...
Page 61: Inspection Mode Setting
1.2.7 Inspection mode setting The respective setting data shall be the data for the VG-819. Signal VG-819 setting values Mode Not used CLOCK [MHz] 28.322 35.500 21.053 28.322 35.500 HPERIOD [DOT] HDISP [DOT] HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL VDISP...
Page 62 Signal VG-819 setting values Mode CLOCK [MHz] 25.18 30.24 31.5 31.5 36.0 HPERIOD [DOT] HDISP [DOT] HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL VDISP VSYNC VBACKP EQP FP EQP BP SERRATION VDSTART VDLINE SCAN Nonint Nonint Nonint Nonint Nonint OUTPUT NRZ/RZ...
Page 63 Signal VG-819 setting values Mode CLOCK [MHz] 36.0 40.0 49.5 50.0 56.25 HPERIOD [DOT] 1024 1056 1056 1040 1048 HDISP [DOT] HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL VDISP VSYNC VBACKP EQP FP EQP BP SERRATION VDSTART VDLINE SCAN Nonint Nonint...
Page 64 Signal VG-819 setting values Mode CLOCK [MHz] 57.28 65.0 70.49 75.0 78.75 HPERIOD [DOT] 1152 1344 1344 1328 1312 HDISP [DOT] 1024 1024 1024 1024 HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL VDISP VSYNC VBACKP EQP FP EQP BP SERRATION VDSTART VDLINE...
Page 65 Signal VG-819 setting values Mode Not used CLOCK [MHz] 94.5 94.50 108.00 126.00 107.50 HPERIOD [DOT] 1376 1528 1800 1680 1664 HDISP [DOT] 1024 1152 1280 1280 1280 HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL 1000 1000 1078 VDISP 1024 VSYNC...
Page 66 Signal VG-819 setting values Mode CLOCK [MHz] 108.00 117.00 135.00 135.00 94.50 HPERIOD [DOT] 1688 1632 1688 1664 1480 HDISP [DOT] 1280 1280 1280 1280 1152 HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL 1066 1067 1066 1066 VDISP 1024 1024 1024...
Page 67 Signal VG-819 setting values Mode CLOCK [MHz] 108.00 162.00 108.00 HPERIOD [DOT] 1600 2160 1688 HDISP [DOT] 1152 1600 1280 HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL 1250 1066 VDISP 1200 1024 VSYNC VBACKP 6380 EQP FP EQP BP SERRATION VDSTART VDLINE...
Page 68 Signal VG-819 setting values Mode CLOCK [MHz] 34.40 34.40 HPERIOD [DOT] HDISP [DOT] HSYNC [DOT] HBACKP [DOT] HDSTART [DOT] HDWIDTH [DOT] VTOTAL 1024 1024 VDISP VSYNC VBACKP EQP FP EQP BP SERRATION VDSTART VDLINE SCAN Nonint Nonint OUTPUT NRZ/RZ NEGA NEGA POSI NEGA...
Page 69 Note 1: According to the designation of sync signals and the setting of each inspection mode, the analog outputs (BNC) of the signal generator shall be connected as specified below. (Except the cases when otherwise specified) 1) SEPARATE: R/G/B CONNECTION, HS ←→ H, VS ←→ V, CS not connected 2) COMPOSITE: R/G/B CONNECTION, CS ←→...
Page 70: Operational Description Of Osd Control
1.3 Operational description of OSD control Each OSD function is available by pressing the buttons (MENU, -, +, AUTO) located on the lower section of the front bezel. 1.3.1 Function of each button The basic function of each button (also called a key, but it bears the same meaning) is explained below. In case of no OSD display, either buttons of MENU, -, + or AUTO may be pressed to display an OSD menu.
Page 71: Power On
1.4 POWER ON Turn on the power supply in the procedures specified below. 1) Make connections according to the mode in which the VG-819 cable is being set. 2) Turn on the POWER switch of the VG-819 unit. 3) Connect the AC POWER cord to the unit under inspection. 4) Turn on the POWER switch of the unit under inspection.
Page 72: Inspection Of Automatic Adjustment Function
1.5.2 Inspection of automatic adjustment function 1) Enter Signal 26 through D-SUB port. (A screen of one-dot missing plus external frame) 2) Display an OSD menu. Using the +up and -down buttons to select LCD ADJUST and enter the LCD ADJUST menu by press MENU button.
Page 73: Inspection Of Input Signal Discrimination
1.5.3 Inspection of input signal discrimination Purpose of this inspection: Intended to confirm that a normal display is presented for any signal input. Unless otherwise specified, the display pattern shall conform to the initial screen as defined in 1.2.7, “Inspection mode setting.” --- Inspection of signal inputs --- According to the table specified below, setting of input port/signal is performed and a signal input is entered.
Page 74: Inspection Of Video Detect Function
1.5.4 Inspection of VIDEO DETECT function This inspection shall be carried out to confirm that the [VIDEO] function of the OSD menu is normally available and that the video input port is automatically changed according to the combination of video inputs.
Page 75: External Inspection On The Lcd Module
2. External inspection on the LCD module 2.1 External inspection of the display surface The display surface shall be visually inspected according to the inspection items specified below. In cases of the discovery of extreme defects or doubtful judgment, final judgment should be made on the basis of relevant detailed standards for inspection.
Page 76 Item description Standard Remark 1. Test pattern : Full white or Full 1 dot (R/G/B) N≤4 black. 2 dots adjacent ≤1 Bright 2. Slight bright & dark dot do not ≥3 dots seen in 50% gray pattern is Total N≤4 ignored.
Page 77 FLC48SXC8V Content Remarks Specification (FJ) Clear mura (with clear border) By 8% ND filter (1)Test pattern : Full black/full Unclear mura (with unclear white/50% gray By 8% ND filter 9 Mura (mm) border) Light or dark hor. & Vertical (2)Invisible, (Note 3, 4) By 8% ND filter bands 10 White dot spots...
Page 78: Inspection Of Plug & Play Communication And Osd For Model Name/ Serial Number
3. Inspection of PLUG & PLAY communication and OSD for model name/ serial number 3.1 System Connection This system should be connected as shown below. P R O G R A M P a rt N o . 5 9 9 9 1 0 5 5 2 D V I to D -S U B S ig n a l C a b le (S p e c ia l) P a rt N o .
Page 79: Operational Procedures
3.3 Operational procedures 1. Start PNP.EXE from DOS mode or the Windows DOS prompt. 2. Operation key assignment • Determine the operation mode with the F1 ~ F9 and ESC keys. F1: Setting file changeover for respective models F4: EDID data for reading F5: D-SUB connector (Analog) for writing (EDID data) F8: DVI-D connector (Digital) for writing (EDID data) F9: D-SUB (Analog) and D-VI-D (Digital) for writing (Write ALL)
Page 80: Edid Data File
Upon normal completion, a screen display is presented "OK". g. A power-supply switch is switched off -> turned on, A signal generator (There is no designation in the input signal.) and a writing equipment are connected with the D-SUB signal cable directly. h.
Page 81 TROUBLE SHOOTING TABLE OF CONTENTS Page 1. Power is not available ......................6-2 2. No image display ......................... 6-3 2.1 LED light, but no OSD, no back light and no image ............6-3 2.2 LED green, and no OSD and no back light ................ 6-4 2.3 LED green, and OSD present, but no image ..............
Page 82: Power Is Not Available
1. POWER is not available Confirm if there is any withdrawal of internal cables, disconnection, etc. Is +12V available at W09 on MB.? Failure point Check the power adapter. Is +5Vx system ok? +5Vx for system. (Pin7 for IC22) Failure point 1) Check fuse (F1) ok? 2) Check ZD04;...
Page 83: No Image Display
2. No image display 2.1 LED green, but no OSD, no back light and no image Is the LED turned green when a power switch is pressed? Is +12V power source ok ? (It means +12V power is connect to W09 and ok?) Failure point Check power adapter .
Page 84: Led Green, And No Osd And No Back Light
2.2 LED green, and no OSD and no back light Is +12V available at L01and L02? Failure point Check the power supply (Adapter). Is +12V is available at W05 Pin1, 2, 3: +12V for Inverter, and Pin8: +5V ok? Failure point Check JP01 and IC18, and inverter control circuit.
Page 85: Led Green, And Osd Present, But No Image
2.3 LED green, and OSD present, but no image Is there a VIDEO signal at W01,and H-sync V-sync ok? Is there Digital (DVI) signal input on W06? Is there a digital signal output available of Failure point IC11 (H, V, CLK, DE, data)? 1) Check power of IC11.
Page 86: Picture Errors
3. Picture errors 3.1 High-light in white or black Is High-light in white or black? Normal Use [AUTO CONTRAST] to adjust video gain and black-level offset value. Normal Is the RGB input maintained at 0.7Vp-p in L20, L21, and L22? Failure point Adjust the input on the signal side to 0.7Vp-p again.
Page 87: Image Is Unclear
3.2 Image is unclear Are image still unclear even though [H-SIZE] and [FINE TUNE] are adjusted? Normal Is the display used in the ENLARGE mode? Failure point 1) Change to resolution of 1280x1024. 2) Adjust [SMOOTHING] function. Replace the connection cable that is extended toward the PC.
Page 88: Image Noise
3.3 Image noise Is the image still unclear even though H-SIZE and FINE TUNE are adjusted? Normal Replace the video cable that is connected to the PC. Normal Is there any change in the noise when the contrast is adjusted? Failure point Analog : Check power, output signal and...
Page 89: Others Operational Error
4. Others operational error 4.1 DDC read error 1) D-SUB • Check the power supply for IC26. • Check the clock signal waveform at Pin 6 of IC26 and the data waveform at Pin 5. 2) DVI • Check the power supply for IC14(24C02). •...
Page 90: Switching Power Circuit Failure
5. Switching power circuit failure Is +12V power source available? (IC18 pin7, 8) 1) Make sure that the voltage of between IC18 pin1 and GND approximate +5V. 2) Make sure that the voltage of between IC22 pin5 and GND approximate +5V 3) Make sure that the voltage of between IC22 pin7 and GND approximate +5V.
Page 91 CONTNUE Is C79 “+” approximately 3.5V? Failure point 1) Check +5V ok? 2) Check IC08 ok? 3) Check the value of R198, R199. Is C65 “+” approximately 3.5V? Failure point 1) Check +5V ok? 2) Check IC31 ok? 3) Check the value of R80, R218. Is C172 “+”...
Page 92 CIRCUIT DESCRIPTION TABLE OF CONTENTS Page 1. Summary ..........................7-2 2. Circuit description ........................ 7-3 2.1 System block diagram ......................7-3 2.2 Analog signal input circuit ....................7-4 2.3 A/D converter ........................7-5 2.4 AM121-2 and peripheral circuits ..................7-7 2.4.1 General description ......................
Page 93: Summary
1.Summary LCD1920NX is a dual input, multi-frequency and multi mode color TFT LCD monitor. It supports different resolutions including SXGA, XGA, SVGA, VGA and other various high-resolution modes up to 1280x1024 for IBM, PC compatibles, Power PC and Macintosh. LCD1920NX uses a TFT LCD panel with a 0.294mm pixel pitch, providing 16.7 million color image.
Page 94: Circuit Description
2. Circuit description 2.1 System block diagram...
Page 95: Analog Signal Input Circuit
2.2 Analog signal input circuit This product uses 74F153 as a signal switch in order to support composite SYNC and SYNC on Green timings. The MPU (IC25) in this product provides the differential function to the Composite SYNC, so the SYNC processor circuit is simplified.
Page 96: A/D Converter
2.3 A/D converter The A/D converter (IC01) is used to convert the RGB video signals of about 0.7Vp-p into the digital signals of odd-numbered and even-numbered pixels of 8 bits each, 48 bits in total. In regard to the clocks for conversion into digital signals, the built-in PLL is used to generate the clock signals inside the IC01, based on the horizontal sync signal.
Page 97 The AD9884 is a complete 8-bit 140MSPS, monolithic graphics digitizer optimized for digitizing RGB graphics signals from personal computers and workstations. Its 140MSPS encode rate capability and full-power analog bandwidth of 500MHz supports display resolutions of up to 1280x1024 at 75Hz with sufficient input bandwidth to accurately acquire and digitize each pixel.
Page 98: Am121-2And Peripheral Circuits
2.4 AM121-2and peripheral circuits The AM121-2 is enhanced version of the AM100 chip. It is an IC designed for dual-interface SXGA TFT LCD monitors. A dual-interface LCD monitor takes analog or digital RGB signals from a personal computer graphics card. This feature makes a dual-interface LCD monitor. 2.4.1 General description The analog input RGB signals are first sampled by six channels of the 8-bit A/D converter, and the 48-bit RGB data is then fed into AM121-2.
Page 99: Am121-2 Internal Block Diagram
2.4.2 AM121-2 internal block diagram Input mode detection and auto calibration AM121-2 can handle up to 14 different modes, it can automatically detect the mode and scaling. Buffer memory and read/write control The AM121-2 uses internal buffer memory to store a portion of the input image for image scaling and output synchronization.
Page 100: Circuit Diagram
2.4.3 Circuit diagram...
Page 101: Pin Description
2.4.4 Pin description Symbol Pin # Description B_IN10 Channel B Data Input Color Blue (LSB) B_IN11 Channel B Data Input Color Blue B_IN12 Channel B Data Input Color Blue B_IN13 Channel B Data Input Color Blue DATA_SEL Indicate Channel A or Channel B contains valid input data: 1: data in Channel A is valid 0: data in Channel B is valid B_IN14...
Page 102 R_OUT0_O Output Color Red Odd Pixel (right pixel) R_OUT1_O Output Color Red Odd Pixel (right pixel) R_OUT2_O Output Color Red Odd Pixel (right pixel) R_OUT3_O Output Color Red Odd Pixel (right pixel) Power Supply R_OUT4_O Output Color Red Odd Pixel (right pixel) R_OUT5_O Output Color Red Odd Pixel (right pixel) Output Color Red Odd Pixel (right pixel)
Page 103 R_IN05 Channel A Data Input Color Red R_IN06 Channel A Data Input Color Red R_IN07 Channel A Data Input Color Red (MSB) R_IN10 Channel B Data Input Color Red (LSB) R_IN11 Channel B Data Input Color Red Ground R_IN12 Channel B Data Input Color Red Channel B Data Input Color Red R_IN13 Power Supply...
Page 104: Function Description
2.4.5 Functional description The AM121-2 has the following major function block Input mode detection and auto calibration block Buffer memory and read/write control block Image scaling, interpolation and dithering block OSM mixer and LCD interface block EEPROM interface block CPU interface block 2.5 Reset signal generator circuit Q30 is a reset IC.
Page 105: Cpu (Mtv112Mn32) Description
2.6 CPU (MTV112MN32) description 2.6.1 CPU internal block The MTV112MN32 micro-controller is an 8051 CPU core embedded device specially tailored to LCD monitor applications. It includes an 8051 CPU core, 256 bytes SRAM, fourteen built-in PWMDACs, DDC1/DDC2B interface, 24Cxx series EEPROM interface, A/D converter and a 32K bytes internal program EPROM. 2.6.2 Features 8051 core.
Page 106: Pin Description
2.6.3 Pin description Pin# Name Type Description 40 42 44 1 1 2 General purpose I/O P1.0 2 2 3 General purpose I/O / V-sync half frequency output. P1.1/HALFV 3 3 4 General purpose I/O / H-sync half frequency output. P1.2/HALFH 4 4 5 General purpose I/O / H-sync clamp pulse output.
Page 107: H/V-Sync Processing
2.6.4 H/V-sync processing H/V Polarity Detection The Polarity functions detect the input HSYNC/VSYNC high and low pulse duty pluse. If the high pluse duration is longer than that of the low pluse, the negative polarity is asserted; otherwise, positive polarity is asserted.
Page 108: Ddc & Iic Interface
2.6.5 DDC & IIC Interface DDC1 Mode MTV112MN32 enters DDC1 mode after Reset. In this mode, VSYNC is a data clock. The HSCL pin should remain at high. The data output to the HSDA pin is taken from 8 bytes FIFO in MTV112MN32. MTV112MN32 fetches the data byte from FIFO, then sends it in a 9-bit packet format which includes a null bit (=1) as packet separator.
Page 109: Lvds Description
2.7 LVDS description 2.7.1 Circuit The 48-bit digital signal output from the scaling IC (IC02) is entered in the LVDS transmitter (IC36, IC37). The LVDS signal is transmitted from W07 to the panel control board, and decoded within this board. 7-18...
Page 110: General Description
2.7.2 General description The THC63LVDM83A transmitter converts 28 bit CMOS/TTL data into four LVDS (Low Voltage Differential Signaling) data streams. A phase-locked transmit clock is transmitted in parallel with the data streams over a fifth LVDS link. Every cycle of the transmit clock 28 bits of input data are sampled and transmitted. At a transmit clock frequency of 65MHz, 24 bits of RGB data and 3bits of LCD timing and control data (HSYNC, VSYNC, DATA ENABLE) are transmitted at a rate of 455 Mbps per LVDS data channel.
Page 111: Ddc Circuit Description
2.8 DDC circuit description 2.8.1 Analog circuit 2.8.2 Digital circuit 2.8.3 General description The EEPROM for DDC are two pieces (IC26, IC14) in analog and digital. The EDID of both IC are same data. IC26 has DDC1 mode and DDC2B mode, but this circuit supported only DDC2B mode. IC14 only has DDC2B.
Page 112: Power System Circuit And Description
2.9 Power system circuit and description The LCD1920NX uses an external power adaptor to provide the DC+12 voltage. In order to greatly reduce the power consumption when in power saving stage, the circuit is used not only to convert the +12V to +5V, but also to control the +5V ON/OFF status.
Page 113: Over Voltage Protection
2.10 Over voltage protection Over voltage protection is needed on any power system. If some failure occurs and the voltage of +5Vx is too high, the power system has over voltage protection circuit. +5Vx system has a comparator (IC20-LM339), if the voltage of IC20 Pin 9 is higher than ZD03, IC20 Pin 14 will generate a High level output and MOSFET will turned OFF.
Page 114: Tmds Signal Process
2.11 TMDS signal process 2.11.1 Circuit and description This product uses IC11 (SiL153B) for digital interface, IC14 (24C02) is digital interface DDC data and uses W06 DVI interface for TMDS signal to IC11. When digital interface D6 is at Low level , Q10 is turned on and power of IC11 is output through D115 and D116 and the power will support about 3.5V.
Page 115: Chip General Description
2.11.2 Chip general description IC11 uses PanelLink Digital technology to support displays ranging from VGA to SXGA (25-135MHz) which is ideal for desktop and specialty applications. The SiL161 receiver supports up to true color panels (24 bit/pixel, 16.7M colors) in 1 or 2 pixels/clock mode, and also features an inter-pair skew tolerance up to 1 full input clock cycle.
Page 116: Pin Description
2.11.4 Pin description Pin Name Pin # Type Description SCDT Sync Detect. A HIGH level is outputted when DE is actively toggling indicating that the link is alive. A LOW level is outputted when DE is inactive, indicating the link is down.
Page 117 Output Pins Description Pin Name Pin # Type Description QE23 - QE0 See SiL161A Output Even Data [23:0] corresponds to 24-bit pixel Pin Diagram data for 1-pixel/clock input mode and to the first 24-bit pixel data for 2-pixels/clock mode. Output data is synchronized with output data clock (ODCK).
Page 118 Reserved Pin Description Pin Name Pin # Type Description Reserved Must be tied HIGH for normal operation. Power and Ground Pin Description Pin Name Pin # Type Description 6,38,67 Power Digital Core VCC, must be set to 3.3V. 5,39,68 Ground Digital Core GND.
Page 119: Waveforms
2.12 Waveforms DE (IC02 Pin34) Vsync (IC02 Pin32) Hsync (IC02 Pin31) Data-clk (IC02 Pin33) Vsync & Hsync (CH1:Vsync CH2:Hsync) Vsync & DE (CH1:Vsync CH2:DE) 7-28...
Page 120 Free-run Hsync +5Vx switching power frequency (D19) VLCD switch power frequency(D20) Input signal (CH1:Hsync CH2:Data) Input signal (CH1:Vsync CH2:Data) ISCL & ISDA (CH1:ISDA CH2:ISCL) 7-29...
Page 121 2933 PFD (CH1:IC03 Pin4 CH2:IC03 Pin5) PLL output clk (IC03 Pin3) SOGIN (IC01 Pin14) “-“; ”function”; ”+”; ”select” (WO4 Pins 1~4) Crystal clk (IC25 Pins 18;19) Reset signal (CH1:5Vx CH2:Q30 output pin) 7-30...
Page 122 OSM Data (CH1:IC04 Pin15 ) vs. Digital Vsync & DE (CH1:Vsync CH2:DE) OSM DE (CH2:IC04 Pin12) Digital Hsync & DE (CH1:Hsync CH2:DE) Digital Hsync & CLK (CH1:Hsync CH2:CLK) 7-31...
Page 123: Replacement Parts List
REPLACEMENT PARTS LIST The components specified for Model LCD1920NX(A) SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION *** ICS *** IC01 0430-8000-3846 79PZ0154 IC AD9884AKS-140 SMD 128P IC02 0430-7007-4939 79PZ0151 IC AM121-2 SMD 160 PIN IC03 0430-7000-6015 79PZ0148 IC TLC2933IPWR SMD 14PIN IC04 0430-7007-7040...
Page 124 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0410-0000-2106 79PZ0129 TRANSISTOR 2SA673AC TO-92 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-0000-2106 79PZ0129 TRANSISTOR 2SA673AC TO-92 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM...
Page 125 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0500-0105-0302 79PZ0008 INVERTER DC-AC T65I008.00 MAINBD 3190-0142-0150 79PZ0014 LCD MAIN BD ASS'Y *** COILS & FILTERS *** 0370-0000-1010 79PZ0113 FERRITE CORE RH 3.5X6X1.0 0370-0000-1010 79PZ0113 FERRITE CORE RH 3.5X6X1.0 0344-6880-0603 79PZ0111 PEAKING COIL 0.68UH 1/4W 0344-6880-0603...
Page 126 79PZ0165 PANEL CAB. LCD1920NX (NEC POWBU 1701-0409-4000 79PZ0162 POWER BUTTON LCD1920NX *** PRINTED & PACKING MATERIALS *** BALB 1936-1100-4070 79PZ0170 BACK LBL LCD1920NX AN NEC CARD 1925-1900-0010 79PZ0028 CARDBOARD FOR NMV CART 1925-1200-3640 79PZ0167 CARTON LCD1920NX AN NEC CUBO 1925-1000-1180...
Page 127 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION PR60 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR61 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR62 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PRA17 0141-4709-3851 79PZ0107 ARRAY RES.
Page 128 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION R142 0130-3901-0055 79PZ0093 RES. CF 3.9K 1/10W J R143 0130-2401-0055 79PZ0085 RES. CF 2.4K 1/10W J R144 0130-3301-0055 79PZ0090 RES. CF 3.3K 1/10W J R145 0130-1002-0055 79PZ0067 RES. CF 10K 1/10W J R146 0130-2200-0055 79PZ0077...
Page 129 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION R196 0130-2209-0055 79PZ0084 RES. CF 22H 1/10W J R197 0130-0000-0055 79PZ0061 RES. CF 0.0H 1/10W J R198 0130-2200-0055 79PZ0077 RES. CF 220H 1/10W J R199 0130-1200-0055 79PZ0071 RES. CF 120H 1/10W J R202 0130-2200-1450 79PZ0078...
Page 130 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0130-1500-0055 79PZ0072 RES. CF 150H 1/10W J 0130-1500-0055 79PZ0072 RES. CF 150H 1/10W J 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J 0130-4709-0055 79PZ0098 RES.
Page 131 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0101-1471-1311 79PZ0042 E/C GEN. 470UF 25V 105' F C124 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C127 0111-3103-5116 79PZ0050 C/M MULTI 0.01UF 50V X7R C129 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C130 0111-3104-2536 79PZ0051...
Page 132 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION C178 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C179 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3100-5106 79PZ0048 C/M MULTI. 10PF 50V NPO C180 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C181 0111-3103-5116 79PZ0050...
Page 133 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3470-5106 79PZ0059 C/M MULTI.
Page 134 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0111-3470-5106 79PZ0059 C/M MULTI. 47PF 50V NPO 8-12...
Page 135 REPLACEMENT PARTS LIST The components specified for Model LCD1920NX-BK(A) SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION *** ICS *** IC01 0430-8000-3846 79PZ0154 IC AD9884AKS-140 SMD 128P IC02 0430-7007-4939 79PZ0151 IC AM121-2 SMD 160 PIN IC03 0430-7000-6015 79PZ0148 IC TLC2933IPWR SMD 14PIN IC04 0430-7007-7040...
Page 136 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0410-0000-2106 79PZ0129 TRANSISTOR 2SA673AC TO-92 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-0000-2106 79PZ0129 TRANSISTOR 2SA673AC TO-92 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM...
Page 137 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0500-0105-0302 79PZ0008 INVERTER DC-AC T65I008.00 MAINBD 3190-0142-0150 79PZ0014 LCD MAIN BD ASS'Y *** COILS & FILTERS *** 0370-0000-1010 79PZ0113 FERRITE CORE RH 3.5X6X1.0 0370-0000-1010 79PZ0113 FERRITE CORE RH 3.5X6X1.0 0344-6880-0603 79PZ0111 PEAKING COIL 0.68UH 1/4W 0344-6880-0603...
Page 138 1712-0100-3120 79PZ0003 BASE ROTATE LCD1920NX HICO 1701-1901-8010 79PZ0010 HINGE COVER LCD1920NX ( PACA 1801-0110-1020 79PZ0171 PANEL CAB. LCD1920NX (NEC POWBU 1701-0409-4010 79PZ0009 POWER BUTTON LCD1920NX *** PRINTED & PACKING MATERIALS *** BALB 1936-1100-4080 79PZ0174 BACK LBL LCD1920NX ANBK N CARD...
Page 139 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION PR60 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR61 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR62 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PRA17 0141-4709-3851 79PZ0107 ARRAY RES.
Page 140 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION R142 0130-3901-0055 79PZ0093 RES. CF 3.9K 1/10W J R143 0130-2401-0055 79PZ0085 RES. CF 2.4K 1/10W J R144 0130-3301-0055 79PZ0090 RES. CF 3.3K 1/10W J R145 0130-1002-0055 79PZ0067 RES. CF 10K 1/10W J R146 0130-2200-0055 79PZ0077...
Page 141 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION R196 0130-2209-0055 79PZ0084 RES. CF 22H 1/10W J R197 0130-0000-0055 79PZ0061 RES. CF 0.0H 1/10W J R198 0130-2200-0055 79PZ0077 RES. CF 220H 1/10W J R199 0130-1200-0055 79PZ0071 RES. CF 120H 1/10W J R202 0130-2200-1450 79PZ0078...
Page 142 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0130-1500-0055 79PZ0072 RES. CF 150H 1/10W J 0130-1500-0055 79PZ0072 RES. CF 150H 1/10W J 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J 0130-4709-0055 79PZ0098 RES.
Page 143 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0101-1471-1311 79PZ0042 E/C GEN. 470UF 25V 105' F C124 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C127 0111-3103-5116 79PZ0050 C/M MULTI 0.01UF 50V X7R C129 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C130 0111-3104-2536 79PZ0051...
Page 144 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION C178 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C179 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3100-5106 79PZ0048 C/M MULTI. 10PF 50V NPO C180 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C181 0111-3103-5116 79PZ0050...
Page 145 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3470-5106 79PZ0059 C/M MULTI.
Page 146 SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION 0111-3470-5106 79PZ0059 C/M MULTI. 47PF 50V NPO 8-24...
Page 147 REPLACEMENT PARTS LIST The components specified for Model LCD1920NX(B) SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION *** ICS *** IC01 0430-8000-3846 79PZ0154 IC AD9884AKS-140 SMD 128P IC02 0430-7007-4939 79PZ0151 IC AM121-2 SMD 160 PIN IC03 0430-7000-6015 79PZ0148 IC TLC2933IPWR SMD 14PIN IC04 0430-7007-7040...
Page 148 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0410-0000-2106 79PZ0129 TRANSISTOR 2SA673AC TO-92 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-0000-2106 79PZ0129 TRANSISTOR 2SA673AC TO-92 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM...
Page 149 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0500-0105-0302 79PZ0008 INVERTER DC-AC T65I008.00 MAINBD 3190-0142-0150 79PZ0014 LCD MAIN BD ASS'Y *** COILS & FILTERS *** 0370-0000-1010 79PZ0113 FERRITE CORE RH 3.5X6X1.0 0370-0000-1010 79PZ0113 FERRITE CORE RH 3.5X6X1.0 0344-6880-0603 79PZ0111 PEAKING COIL 0.68UH 1/4W 0344-6880-0603...
Page 150 1701-0409-4000 79PZ0162 POWER BUTTON LCD1920NX *** PRINTED & PACKING MATERIALS *** ADDR 1925-1600-0150 79PZ0181 ADDRESS SHEET FOR LCD1920 BALB 1936-1100-4110 79PZ0182 BACK LBL LCD1920NX BN NEC CARD 1925-1900-0010 79PZ0028 CARDBOARD FOR NMV CART 1925-1200-3680 79PZ0176 CARTON LCD1920NX BN/BNBK CAUT 1925-1400-1030...
Page 151 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION PR57 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR58 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR59 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR60 0141-4709-3851 79PZ0107 ARRAY RES.
Page 152 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION R138 0130-1002-1859 79PZ0068 RES. CF 10K 1/4W J 0130-1500-1858 79PZ0074 RES. CF 150H 1/8W J R140 0130-2209-0055 79PZ0084 RES. CF 22H 1/10W J R142 0130-3901-0055 79PZ0093 RES. CF 3.9K 1/10W J R143 0130-2401-0055 79PZ0085...
Page 153 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION R190 0130-1001-0055 79PZ0066 RES. CF 1.0K 1/10W J R192 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J R194 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J R196 0130-2209-0055 79PZ0084 RES. CF 22H 1/10W J R197 0130-0000-0055 79PZ0061...
Page 154 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0130-0000-0055 79PZ0061 RES. CF 0.0H 1/10W J 0130-1001-0055 79PZ0066 RES. CF 1.0K 1/10W J 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J 0130-1500-0055 79PZ0072 RES. CF 150H 1/10W J 0130-1500-0055 79PZ0072 RES.
Page 155 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION C117 0111-3100-5106 79PZ0048 C/M MULTI. 10PF 50V NPO C118 0101-1331-1211 79PZ0040 E/C GEN. 330UF 16V 105' F C119 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0101-1471-1311 79PZ0042 E/C GEN. 470UF 25V 105' F C124 0111-3104-2536 79PZ0051...
Page 156 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION C175 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C176 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C177 0101-1101-1211 79PZ0039 E/C GEN. 100UF 16V 105' F C178 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C179 0111-3104-2536 79PZ0051...
Page 157 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI.
Page 158 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0111-3470-5106 79PZ0059 C/M MULTI. 47PF 50V NPO 0111-3470-5106 79PZ0059 C/M MULTI. 47PF 50V NPO 0111-3220-5106 79PZ0053 C/M MULTI. 22PF 50V NPO 0111-3470-5106 79PZ0059 C/M MULTI. 47PF 50V NPO 8-36...
Page 159 REPLACEMENT PARTS LIST The components specified for Model LCD1920NX-BK(B) SYMBOL Part No for AmTRAN Part No for NMV DESCRIPTION *** ICS *** IC01 0430-8000-3846 79PZ0154 IC AD9884AKS-140 SMD 128P IC02 0430-7007-4939 79PZ0151 IC AM121-2 SMD 160 PIN IC03 0430-7000-6015 79PZ0148 IC TLC2933IPWR SMD 14PIN IC04 0430-7007-7040...
Page 160 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0410-0000-2106 79PZ0129 TRANSISTOR 2SA673AC TO-92 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-0000-2106 79PZ0129 TRANSISTOR 2SA673AC TO-92 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM 0410-5000-1610 79PZ0130 TRANSISTOR MMBT3904LT1 SM...
Page 161 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0500-0105-0302 79PZ0008 INVERTER DC-AC T65I008.00 MAINBD 3190-0142-0150 79PZ0014 LCD MAIN BD ASS'Y *** COILS & FILTERS *** 0370-0000-1010 79PZ0113 FERRITE CORE RH 3.5X6X1.0 0370-0000-1010 79PZ0113 FERRITE CORE RH 3.5X6X1.0 0344-6880-0603 79PZ0111 PEAKING COIL 0.68UH 1/4W 0344-6880-0603...
Page 162 BARO 1712-0100-3120 79PZ0003 BASE ROTATE LCD1920NX HICO 1701-1901-8010 79PZ0010 HINGE COVER LCD1920NX ( PACA 1801-0110-1020 79PZ0171 PANEL CAB. LCD1920NX (NEC POWBU 1701-0409-4010 79PZ0009 POWER BUTTON LCD1920NX *** PRINTED & PACKING MATERIALS *** ADDR 1925-1600-0150 79PZ0181 ADDRESS SHEET FOR LCD1920 BALB...
Page 163 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION PR57 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR58 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR59 0141-4709-3851 79PZ0107 ARRAY RES. A(X) 47H 4R J PR60 0141-4709-3851 79PZ0107 ARRAY RES.
Page 164 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION R138 0130-1002-1859 79PZ0068 RES. CF 10K 1/4W J 0130-1500-1858 79PZ0074 RES. CF 150H 1/8W J R140 0130-2209-0055 79PZ0084 RES. CF 22H 1/10W J R142 0130-3901-0055 79PZ0093 RES. CF 3.9K 1/10W J R143 0130-2401-0055 79PZ0085...
Page 165 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION R190 0130-1001-0055 79PZ0066 RES. CF 1.0K 1/10W J R192 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J R194 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J R196 0130-2209-0055 79PZ0084 RES. CF 22H 1/10W J R197 0130-0000-0055 79PZ0061...
Page 166 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0130-0000-0055 79PZ0061 RES. CF 0.0H 1/10W J 0130-1001-0055 79PZ0066 RES. CF 1.0K 1/10W J 0130-4701-0055 79PZ0096 RES. CF 4.7K 1/10W J 0130-1500-0055 79PZ0072 RES. CF 150H 1/10W J 0130-1500-0055 79PZ0072 RES.
Page 167 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION C117 0111-3100-5106 79PZ0048 C/M MULTI. 10PF 50V NPO C118 0101-1331-1211 79PZ0040 E/C GEN. 330UF 16V 105' F C119 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0101-1471-1311 79PZ0042 E/C GEN. 470UF 25V 105' F C124 0111-3104-2536 79PZ0051...
Page 168 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION C175 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C176 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C177 0101-1101-1211 79PZ0039 E/C GEN. 100UF 16V 105' F C178 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V C179 0111-3104-2536 79PZ0051...
Page 169 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI. 0.1UF 25V Y5V 0111-3104-2536 79PZ0051 C/M MULTI.
Page 170 Part No for AmTRAN Part No for NMV SYMBOL DESCRIPTION 0111-3470-5106 79PZ0059 C/M MULTI. 47PF 50V NPO 0111-3470-5106 79PZ0059 C/M MULTI. 47PF 50V NPO 0111-3220-5106 79PZ0053 C/M MULTI. 22PF 50V NPO 0111-3470-5106 79PZ0059 C/M MULTI. 47PF 50V NPO 8-48...
Page 171 BLOCK DIAGRAM MODEL LCD1920NX 24 bit sepreater H-sync Digital Power comp. sequency control 74F153 VLCD circuit D-SUB V-sync Digital AD9884 control clock H-sync center generator 24LC21 Href LVDS -5V for DDC analog TLC2933 64LC83 PLL IC clock control Divider 12V in Power register Digital Data...
Page 172 MODEL LCD1920NX LCD MAIN BD (1/7) SCHEMATIC DIAGRAM Schematic Diagram 10-1...
Page 173 MODEL LCD1920NX LCD MAIN BD (2/7) SCHEMATIC DIAGRAM 10-2...
Page 174 MODEL LCD1920NX LCD MAIN BD (3/7) SCHEMATIC DIAGRAM 10-3...
Page 175 MODEL LCD1920NX LCD MAIN BD (4/7) SCHEMATIC DIAGRAM 10-4...
Page 176 MODEL LCD1920NX LCD MAIN BD (5/7) SCHEMATIC DIAGRAM 10-5...
Page 177 MODEL LCD1920NX LCD MAIN BD (6/7) SCHEMATIC DIAGRAM 10-6...
Page 178 MODEL LCD1920NX LCD MAIN BD (7/7) SCHEMATIC DIAGRAM 10-7...

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