ViewSonic VX2240W-4 Service Manual
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ViewSonic VX2240W-4 Service Manual

22” color tft lcd display
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Service Manual

ViewSonic VX2240W-4
Model No. VS11985
22" Color TFT LCD Display
(Manufacture date: NOV. 2008)
VX2240W-4

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Summary of Contents for ViewSonic VX2240W-4

  • Page 1: Service Manual

    Service Manual ViewSonic VX2240W-4 Model No. VS11985 22” Color TFT LCD Display (Manufacture date: NOV. 2008) VX2240W-4...

  • Page 2: Revision History

    Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSonic to notify any person of such revision or changes.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1. Precautions and Safety Notices..................1 2. Specification ........................2 3. Front Panel Function Control Description ...............4 4. Circuit Description ......................9 5. Adjusting Procedure ......................16 6. Trouble Shooting Flow Chart ....................21 7. Block Diagrams .........................22 8. Schematic Diagrams ......................23 9.

  • Page 4: Precautions And Safety Notices

    1. Precautions and Safety Notices 1.1 safety precautions This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However, improper use or installation may cause damage to the monitor as well as the user. Carefully go over the following WARNINGS before installing and keep this guide handy.

  • Page 5: Specification

    DVI-D Cable / 1.8m Arabic, English, Finnish, Spanish, German, ViewSonic CD Wizard Italian, Japanese, Swedish, Polish, Korean Portuguese, Russian, French, Greek, Dutch, ViewSonic Quick Start Guide Turkish, Simplified Chinese, Traditional Chinese, Czech, Hungarian Screen Protector Mylar Extrme Label (up to 2ms)

  • Page 6: Interface Description

    2.2 Interface description 15 pin D-sub connector pin assignment Pin Number Pin Function Red video input Green video input Blue video input No Connection Ground Red video ground Green video ground Blue video ground H/V sync ground No connection (SDA) Horizontal sync (Composite sync) Vertical sync (SCL)

  • Page 7: Front Panel Function Control Description

    3. Front Panel Function Control Description Use the buttons on the front control panel to display and adjust the OSD controls which display on the screen. The OSD controls are explained at the top of the next page and are defined in “Main Menu Controls”...
  • Page 9 sRGB-This is quickly becoming the industry standard for color management, with support being included in many of the latest applications. Enabling this setting allows the LCD display to more accurately display colors the way they were originally intended. Enabling the sRGB setting will cause the Contrast and Brightness adjustments to be disabled.
  • Page 10 Information displays the timing mode (video signal input) coming from the graphics card in the computer, the LCD model number, the serial number, and the ViewSonic website URL. See your graphics card’s user guide for ® instructions on changing the resolution and refresh rate (vertical frequency).
  • Page 11 Setup Menu displays the menu shown below: Language Select allows the user to choose the language used in the menus and control screens. Resolution Notice advises the optimal resolution to use. OSD Position allows the user to move the OSD menus and control screens.

  • Page 12: Circuit Description

    4. Circuit Description Scaler EEprom EEprom NT68670HTFG 24C16 24C04 EEprom 24C02 D _SUB OSD control LCD panel board The NT68670 is a highly integrated flat panel display controller that interfaces analog, digital, and video inputs. It combines a triple ADC, a DVI compliant TMDS receiver, a digital YUV receiver, a high quality zoom and shrink engine , a multi-color on screen display (OSD) controller , an advanced color engine ,an liquid crystal display accelerator over –...
  • Page 13 Writer Ver 3.0 Setp1: Setup EasyUSB WriterV3.0.exe...
  • Page 14 Setp2: Enter :...
  • Page 16 Step 3 : Find Writer in this program. Step 4 : OptionàConfigurationàCHIMEIàConfirm change...
  • Page 17 The IIC speed catches by program. Choose tools for CMO Step 5 : Print to D-Sub and DVI-D Link Monitor which is update Link PC Step 6 : BIOS update: Load FileàAutoàFinish...

  • Page 19: Adjustment Procedure

    5. Adjustment Procedure 1. All Modes Reset You should do “All Model Reset” (Refer to Chap 3. Hot Keys for Function Controls) first. This action will allow you to erase all end-user’s settings and restore the factory defaults. 2. Auto Image Adjust The Auto Adjust is aimed to offer a best screen quality by built-in ASIC.
  • Page 20 7. 25 Gray Test Signal: 1280*1024@60Hz Test Pattern: Full Screen 25% White (Gray) Inspection Item: Particle, Line Defect & Mura 8. 50 Gray Test Signal: 1280*1024@60Hz Test Pattern: Full Screen 50% White (Gray) Inspection Item: Bright Dot, Particle, Line Defect & Mura 9.
  • Page 21 11. RED Test Signal: 1280*1024@60Hz Test Pattern: Full Screen Red Inspection Item: Bright Dot, Partial & Line Defect 12. Green Test Signal: 1280*1024@60Hz Test Pattern: Full Screen Green Inspection Item: Bright Dot, Partial & Line Defect 13. Blue Test Signal: 1280*1024@60Hz Test Pattern: Full Screen Green Inspection Item: Bright Dot, Partial &...
  • Page 22 Item Pattern Description Remark Vertical 64 (256) Gray Scale (右→左 ， From 0 to Gray_Scale_0-100_V Figure 1 100% White) Horizontal 64 (256) Gray Scale (上→下，From Gray_Scale_0-100_H Figure 2 0 to 100% White) Black Full Screen Black Figure 3 Full Screen 50% Red Figure 4 Green Full Screen 50% Green...
  • Page 23 Figure 5 Figure 6 Figure 8 Figure 7...

  • Page 24: Troubleshooting

    Loose or broken pins in the cable connector could cause an improper connection. • Connect the LCD display to another computer. • If you have an older graphics card, contact ViewSonic for a non-DDC ® adapter. Control buttons do not work...

  • Page 25: Block Diagram

    7. Block Diagram Power 24C16 24C02 24C04 24C02 Inveter System for HDCP LVDS Audio MCU + Scaler APA2068 NT68665 KBoard...

  • Page 26: Schematic Diagrams

    8. Schematic Diagrams Main board LIPS_5V LIPS_5V LIPS_5V 04_INTERFACE SPK_R+ SPK_R+ SPK_R+ SPK_R- SPK_R- SPK_R- SPK_L+ SPK_L+ SPK_L+ 02_VGA SPK_L- 05_AUDIO ADC_VAA ADC_VAA SPK_L- SPK_L- 03_SCALER CVDD1V8 06_DVI ADC_VAA...
  • Page 27 100M/33ohm VGA_5V VGA_VDD VGA_SCL VSCL RAI+ 0402/56R/1% 0402/47n/16V/Y BK1608HS330 VGA_SDA VSDA BAV70W /RoHS 0402/75R/1% NC/BAV99/RoHS 0402/3.9K/5% VGA_5V VGA_SCL RAI- RI1- 0402/100R/1% 0402/47n/16V/Y VGA_SDA RI1- AT24C02B-10TU-1.8/RoHS NC/0402/100n/16V/Y GND_POWER 0402/100n/16V/Y 0402/470R/1% SOGI GND_POW ER SOGI GND_POW ER 0402/1n/16V/7 GAI+ 0402/56R/1% 0402/47n/16V/Y RAI+ NC/0402/1M/1% BK1608HS330 RAI-...
  • Page 28 scaler VGA_3V3 AD C _VAA PVCC C VD D 1V8 VGA_3V3 2,4,5 C VD D1V8 ADC _VAA VGA_3V3 D VDD ADC _VAA 2,4,5 Option for NT68670 C 15 C 17 0402/100n/16V/Y GN D_POW ER D VD D 0402/100n/16V/Y 0402/100n/16V/Y 0402/100n/16V/Y C 63 DVD D 2,4,5...
  • Page 29 interface VGA_3V3 EC50117KAG/3.3V/1A V33S LIPS Interface VGA_3V3 2,3,5 DVDD V33S 2,3,5 DVDD 2,3,5 VOUT VOUT 0805/0R/5% 0805/0R/5% ADC_VAA HEADER2X4FR2.54/RoHS EC31QS03L/RoHS +5V1 LIPS_5V INV_ADJ 3 ADC_VAA 2,3,5 INV_ON/OFF 3 MCU_VDD 1206/10u/10V/Y/E 1206/10u/6.3V/5/RoHS LV101M016E055R LIPS_5V 6 MCU_VDD 2,3,5 0805/0R/5% (SCALER VCC) 0402/100n/16V/Y 1206/10u/10V/Y /E GND_POWER V18C1...
  • Page 30 DVI_SCL 0402/100R /5% DVI_VDD DVI_VD D DVI_SC L DSCL DVI_SDA 0402/100R /5% DVI_SD A DSDA 0402/4.7K/5% 0402/4.7K/5% DVI_VDD CVDD1V8 For 686x5 series DVI Read EDID Fail C VDD1V8 DVI_5V DVI_SCL DVI_SDA DVI_SCL 3 DVI_SDA 3 +5V 2,4 NC/0402/2.2K/5% NC/UDZSF-5.6B/RoHS NC/UDZSF-5.6B/RoHS NC/0402/10K/5% BAV70W/RoHS NC/0402/10K/5%...
  • Page 31 Audio LIPS_5V 5V_AMP 0603/0R/5% LIPS_5V LV101M016E055R 1206/10u/10V/Y 1206/10u/10V/Y NC/VPORT0603470KV05T MUTE SPK_R- MUTE ROUT- AMP_SHDN 5V_AMP /SHDN 0402/1u/10V/Y 0402/0R/5% RIN- GND_AUDIO SPK_R+ RIN- ROUT+ 0805/2.2u/16V/Y GND_AUDIO BYPASS SE/BTL GND_AUDIO 0402/0R/5% 0402/1u/10V/Y LIN- SPK_L+ 2SJ-05101NC3 LIN- LOUT+ VOL_PWM 5V_AMP NC/VPORT0603470KV05T SPK_L- VOLMAX LOUT- NC/0402/0R/5% LIN-...
  • Page 32 R116 C104 R117 D110 F100 L102 NTC100 T101 D108 CE104 CE102 R130 ZD104 R134 CY100 CN100 D107 LF100 VAR100 F101 R132 L101 CE105 D112 CE106 Q104 CY101 L100 R118 C105 C111 R133 R119 D106 D105 CY102 R120 R112 R107 Q100 CE101 R129 R113...
  • Page 33 F200 +19V CN200 ON/OFF C209 C204 C214 R255 R244 R204 Q200 D209 D208 C239 Q201 (00A-7037 A, 漏感 220mH) C210 IC_VCC C234 R201 T200 C218 R213 R248 ZD200 R233 R207 C202 Q205 R211 C205 CN201 R200 R214 C215-1 C215 R245 R228 D210 D211...

  • Page 34: Pcb Layout Diagrams

    9. PCB Layout Diagrams...
  • Page 36 10. Exploded Diagram and Exploded Parts List...
  • Page 38 TC6MNBHKNWVSN ViewSonic Model Number:VX2240W-4 Rev: ViewSonic Item Ref. P/N Description Q'ty 750GLMC0KZ512C000Q PANEL A220Z5 VSC CMO/SM0Z131D01 0M1G 330 4120 SCREW 42A9930008 Conductive Tape 277mm *15mm *0.06mm (单 导) N52G 1VSC010 HB Conductive Tape 155mm *15mm *0.06mm(单 导） N52G 1211001 HB...

  • Page 39: Recommended Spare Parts List

    11. Recommended Spare Parts List TC6MNBDTNWVWN Location Part No. Description Remark 705GN734132 BEZEL ASSY 40-D021924 N44GC010968 1B CARTON- 78-D023666 N40G000196855A CARTON LABEL EDIDVSC22D001 CHECKSUM 0X09 EDIDVSC22A001 CHECKSUM 0XB4 N52G 1VSC006 HB Conductive Tape 60mm *24mm *0.06mm main source N52G 1211001 Conductive Tape 155mm *15mm *0.06mm N52G 1211001 HB...
  • Page 40 80GL22708DE POWER BOARD/27-D018867 main source 80GL22700YY POWER BOARD/27-D018868 089G412A18NISC POWER CORD 32E1818058 POWER CORD 089G415A18NISC I-SHENG(KR&EU)/32-D022217 089G404A18N YH POWER CORD(32E1818018/32-D022217) main source 089G421A18N IS POWER CORD/32-D022217 089G412A18NIS3 POWER CORD/32E1818058 main source 705GN734133 REAR ASSY 40-D021927 N40G0001968 2A S/N LABEL 7741513161 N40G000196831A S/N LABEL- 77-D022381 N40G 22N96821C...
  • Page 41 N52G 1VSC006 Conductive Tape 60mm *24mm *0.06mm N44G9003185 CORNER PAPER 7841595111/78-D004862 N44G9003 80 CORNER PAPER 78-D004868 N85G0011 1 COVER AD 41-D022926 705GN734130 COVER HINGE ASS'Y40-D021919 N44GC010 1 CUSHION LEFT 78-D022378 N44GC010 2 CUSHION RIGHT 78-D022387 089G1738SAA600 D-SUB CABLE 1800mm 32-D002132 089G1738JAA 23 D-SUB CABLE 1800mm 32F3018003 089G 728CAAN00...
  • Page 42 0M1G1740 10120 SCREW 42A9940008 0Q1G 330 5120 SCREW 42-D003574 SCREW FOR STD/MF 0M1G1740 8120 42-D020715/42-D000649 705GN734131 SEAT ASS'Y 40-D021922 N52G 1VSC002 HY Security Tape- 7345511002 N44GC010VSC 1A Shipping Draw- 79-D022372 705GN734134 STAND ASS'Y 40-D021930 N52G 2191 01 TAPE /7345911004 050G 600 1 W WHITE STRAP 095G8014 2N00 WIRE HARNESS 2P-2P 20MM/32-D016783...
  • Page 43 089G176C 55N04 FFC Cable 55P 155MM/32-D019364 main source 089G176J 55N01 FFC CABLE 55P 155MM/32-D019364 N52G 1VSC011 ISOLATED TAPE 73-D018291 KEPC7NC3 KEY BOARD/35-D023591 N41G220296821A MANUAL 76-D022374 017G MBN1IUSIC000 MB 35-D019445/10-D024286/001071227_2 N07G0006 1 PALLET- 78-D020542 750GLMC0KZ512C000Q PANEL A220Z5 VSC CMO/SM0Z131D01 N52G6020001 panel protector film N45G 88607004 HQ PE BAG FOR SKD 78-D019961 N45G 52001...
  • Page 44 N44GC010968 1B CARTON- 78-D023666 N40G000196855A CARTON LABEL EDIDVSC22D001 CHECKSUM 0X09 EDIDVSC22A001 CHECKSUM 0XB4 main N52G 1VSC006 HB Conductive Tape 60mm *24mm *0.06mm source N52G 1211001 Conductive Tape 155mm *15mm *0.06mm main N52G 1211001 HB Conductive Tape 155mm *15mm *0.06mm source main N52G 1VSC010 HB...
  • Page 45 main 80GL22708DE POWER BOARD/27-D018867 source 80GL22700YY POWER BOARD/27-D018868 089G402A18N YH POWER CORD(32-D022438) main POWER CORD/(TPV 共用)32-D022438 089G402A18N IS source 089G402A18NISC POWER CORD/32-D022438 705GN734133 REAR ASSY 40-D021927 N40G0001968 2A S/N LABEL 7741513161 N40G000196831A S/N LABEL- 77-D022381 F40G 22N96821B SAFETY LABEL 002G6008 2 SCREW 42-D015647 0M1G 330 4120 SCREW 42A9930008...
  • Page 46 N44G9003 80 CORNER PAPER 78-D004868 N85G0011 1 COVER AD 41-D022926 705GN734130 COVER HINGE ASS'Y40-D021919 N44GC010 1 CUSHION LEFT 78-D022378 N44GC010 2 CUSHION RIGHT 78-D022387 N40G000296811C ZA Customer label on Carton 089G 728HAA DB D-SUB CABLE 089G1738SAA600 D-SUB CABLE 1800mm 32-D002132 089G1738JAA 23 D-SUB CABLE 1800mm 32F3018003 089G 728CAAN00...
  • Page 47 SCREW FOR STD/MF 0M1G1740 8120 42-D020715/42-D000649 705GN734131 SEAT ASS'Y 40-D021922 N52G 1VSC002 HY Security Tape- 7345511002 N44GC010VSC 1A Shipping Draw- 79-D022372 089G1748CAA AC SIGNAL CABLE DVI COMLINK main source 705GN734134 STAND ASS'Y 40-D021930 N40G000296822B ZA Supplier label N52G 2191 01 TAPE /7345911004 N41G780P968 1A WARRANTY CARD- 78-D021250...
  • Page 48 main 089G1748HAA AC DVI CABLE source 089G1748JAA600 DVI Cable 1800mm / 32F0000004 089G1748SAAA01 DVI CORD 32-D013540 089G176C 15N17 FFC CABLE 15P 248.7mm/32-D021932 089G176C 55N04 FFC Cable 55P 155MM/32-D019364 N52G 1VSC011 ISOLATED TAPE 73-D018291 KEPC7NC1 KEY BOARD/35-D021770 main KEPC7NC3 KEY BOARD/35-D023591 source N41G220296832A MANUAL 76-D022380...
  • Page 49 N52G 2191 01 TAPE /7345911004 N41G780P968 1A WARRANTY CARD- 78-D021250 050G 600 1 W WHITE STRAP 095G8014 2N00 WIRE HARNESS 2P-2P 20MM/32-D016783 095G8014 2N01 WIRE HARNESS 2P-2P 40MM/32-D015712 P45G 77001 enlace film...

  • Page 50: Different Parts List

    12. Different parts list Diversity of TC6MNBDTNWVWNND compared with TC6MNBDTNWVWN Location Part No. Description Remark KEPC7NC1 KEY BOARD/35-D021770 F40G 22N96821B SAFETY LABEL Diversity of TC6MNBHKNWVSN compared with TC6MNBDTNWVWN Location Part No. Description Remark N41G220296821A MANUAL 76-D022374 089G402A18N YH POWER CORD(32-D022438)(美規) POWER CORD/(TPV 共用)32-D022438 089G402A18N IS 089G402A18NISC...
  • Page 51 089G414A18N YH POWER CORD(32E1818021)(中規) N40G000296813B ZA QC PASS LABEL N40G000196858A S/N LABEL- 77-D022383 F40G 22N96821B SAFETY LABEL F40G000296822B ZA Supplier label N41G780P968 1A WARRANTY CARD- 78-D021250...
  • Page 52 Reader’s basic dada: Name: Title: Company: Add: Tel: Fax: E-mail: After completing this form, please return it to ViewSonic Quality Assurance in the USA at facsimile 1-909-839-7943. You may also e-mail any suggestions to the Director, Quality Systems & Processes (marc.maupin@viewsonic.com)
  • Page 53 www.s-manuals.com...

This manual is also suitable for:

Vs11985

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