ViewSonic VX910 Service Manual
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ViewSonic VX910 Service Manual

ViewSonic VX910 Service Manual

19” color tft lcd display
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Service Manual

ViewSonic VX910-1
Model No. VS10162
19" Color TFT LCD Display
(VX910_SM_834 Rev. 1a June 2004)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

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  • Page 1: Service Manual

    Service Manual ViewSonic VX910-1 Model No. VS10162 19” Color TFT LCD Display (VX910_SM_834 Rev. 1a June 2004) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...

  • 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

    4. Circuit Description 5. Adjusting Procedure 6. Trouble Shooting Flow Chart 7. Recommended Spare Parts List 8. Exploded Diagram And Spare Parts List 9. Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VX910...

  • Page 4: Precautions And Safety Notices

    1.0 milliamp. In the case of a measurement exceeding the 1.0 milliamp value, a rework is required to eliminate the chance of a shock hazard . AC VOLTMETER 0.15u 1500 To Metal Parts Earth Ground Confidential - Do Not Copy ViewSonic Corporation VX910...

  • Page 5: Specification

    DDC1/2B interface Scaler chip Mstar MST8131a AC Power range 90 V ~ 264 V, 50 Hz / 60 Hz Power consumption < 40W green / < 1W amber (On / Off mode) Confidential - Do Not Copy ViewSonic Corporation VX910...

  • Page 6: Front Panel Function Control Description

    Also toggles between two controls on some screens. Also a shortcut to toggle between analog and digital connections. Power light Green = ON Orange = Power Saving Power On/Off Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 7 • If necessary, make small adjustments using H POSITION and V POSITION until the screen image is completely visible . (The black border around the edge of the screen should barely touch the illuminated “active area” of the LCD display.) Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 8 Contrast (black level) and the foreground (white level). adjusts background black level of the screen image. Brightness allows you to toggle between an analog and a Input Select digital signal. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 9 ▼ To adjust selected color, press Important: If you select RECALL from the Main Menu when the product is set to a Preset Timing Mode, colors return to the 6500K factory preset. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 10 Horizontal Size sharpens focus by aligning the illuminated text and/ Fine Tune or graphic characters. adjusts the clarity and focus of the screen image. Sharpness Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 11 Preset Timing Mode listed in this user guide. Exception: This control does not affect changes made with the User Color control, Language and Power Lock setting. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 12 [1] + [ ] ▼ Power Lock ▲ [1] + [ OSD Lock [2] + [ ] Factory Mode Remark : All the short cuts function are only available while OSD off Confidential - Do Not Copy ViewSonic Corporation VX910...

  • Page 13: Circuit Description

    SIGNAL DB15HD Red Video Green Video Blue Video None Ground (DDC return) Red GND Green GND Blue GND +5V (for DDC) Sync GND None DDC Data Horizontal Sync Vertical Sync DDC Clock Confidential - Do Not Copy ViewSonic Corporation VX910...

  • Page 14: Electrical Specifications

    3.1 Standard conditions Display Area 404.2 x 330.0 mm Video Signal 0.7Vpp Contrast Max. Brightness Max. Ambient 20 +/- 5 ¢X C Input Warming up > 30 min Display 1280 x 1024 Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 15 Analog video input: 75 ohm Digital video input: 100 ohm Sync input: > 1 k ohm Audio input: 10K ohm 4. SIGNAL CABLE: Signal cable with Mini D-Sub 15P connectors at both ends. Length: 1.8 meter. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 16 Date: Mon Dec 01, 2003 ______________________________________________________________________ ______________________________________________________________________ VIEWSONIC CORPORATION EDID Version # 1, Revision # 3 DDCTest For: ViewSonic VX910 ______________________________________________________________________ ______________________________________________________________________ 128 BYTES OF EDID CODE: ________________________________________ 0 | 00 FF FF FF FF FF FF 00 5A 63...
  • Page 17 1152 X 864 @75Hz 1024 X 768 @85Hz 800 X 600 @85Hz 640 X 480 @85Hz Not Used Not Used Not Used (54-71) Detailed Timing / Descriptor Block 1: 1280x1024 Pixel Clock: 108.00 MHz Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 18 Max Vertical Freq - 85 Hz Min Horiz. Freq - 30 KHz Secondary GTF - Not Supported ______________________________________________________________________ (108-125) Detailed Timing / Descriptor Block 4: Monitor Name: VX910 (126) No Extension EDID Block(s) (127) CheckSum OK Confidential - Do Not Copy...
  • Page 19 Date: Mon Dec 01, 2003 ______________________________________________________________________ ______________________________________________________________________ VIEWSONIC CORPORATION EDID Version # 1, Revision # 3 DDCTest For: ViewSonic VX910 ______________________________________________________________________ ______________________________________________________________________ 128 BYTES OF EDID CODE: ________________________________________ 0 | 00 FF FF FF FF FF FF 00 5A 63...
  • Page 20 (38-53) Standard Timing Identification: 1280 X 1024 @60Hz 1152 X 864 @75Hz 1024 X 768 @85Hz 800 X 600 @85Hz 640 X 480 @85Hz 640 X 400 @70Hz Not Used Not Used Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 21 Max Horiz. Freq - 82 KHz Pixel Clock - 140 MHz Secondary GTF - Not Supported ______________________________________________________________________ (108-125) Detailed Timing / Descriptor Block 4: Monitor Name: VX910 (126) No Extension EDID Block(s) (127) CheckSum OK Confidential - Do Not Copy...
  • Page 22 Green - Blue + Blue - H sync V sync d) OSD: The MST8131A has a fully programmable, high-quality OSD controller. The on-chip static RAM stores the cell map and the cell definitions. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 23 U10 as a 2.5V regulator, Desired output voltage are determined by the equation Volt=1.25 x (1 + R84/R83)= 2.5 U11 as a 3.3V regulator, Desired output voltage are determined by the equation Volt=1.255 x (1+ R86/R85)= 3.3 Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 24 6.2 Power Board(Inverter Section) This is a specific inverter for VX910 monitor backlight which converters 12Vdc to drive four cold cathode fluorescence tubes. Electrical specification described as below. INPUT Rated Input Voltage 12Vdc Input Voltage Range 11.4~12.6Vdc Input Current <1.96A Off state Input Power <0.1W...

  • Page 25: Adjusting Procedure

    Press “[¡¶]¡¨ Button to the previous item or “[¡¿]“ Botton to the next item. 1) sRGB Item 2) 9300K Item 3) 6500K Item 4) 5400K Item Press “[2]” Button to select current Item. Press “[1]” Button to exit current item. 5) User Color Item Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 26 Press “[1]” Button to exit Horizontal Size item. Press¡§[¡¶]¡¨ Button to make current item high. Press“[¡¿]““Button to make current item low. 3) Fine tune Item Press “[2]” Button to enter Fine tune item. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 27 Press “[2]” Button to enter the Vertical Position option. Press “[1]” Button to exit Horizontal Position option. Press ¡§[¡¶]¡¨ Button to make current option high. Press “[¡¿]“ Button to make current option low Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 28 Press ¡§[¡¶]¡¨ or“[¡¿]“ Button to enter the Brightness Dialog. Press “[1]” Button to exit the Brightness Dialog. Press “[2]” Button to enter the Contrast Dialog. Press ¡§[¡¶]¡¨Button to make brightness high. Press “[¡¿]“Button to make brightness low. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 29 Press “[1]” Button to exit the page. Press ¡§[¡¶]¡¨ Button to the previous item or “[¡¿]“ Botton to the next item. 1) sRGB Item 2) 9300K Item 3) 6500K Item 4) 5400K Item Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 30 Press “[2]” Button to select the language. Press “[1]” Button to exit the option. 2) Resolution Notice Item Press “[2]” Button to enter Resolution Notice item. Press “[1]” Button to exit Resolution Notice item. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 31 Press ¡§[¡¶]¡¨ Button to the previous option or “[¡¿]“ Botton to the next option. 6) Memory Recall Page Press “[2]” Button to do the memory recall function. Press “[1]” Button to exit the page. Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 32 Press [2] then Power on it will enter Factory Mode then it will add one Menu page named Factory Menu Press “[2] “ Button Enter Factory Menu item Then Press”[2]” Button Enter Burn Mode Confidential - Do Not Copy ViewSonic Corporation VX910...

  • Page 33: Trouble Shooting Flow Chart

    6. Trouble Shooting Flow Chart 1. Display color abnormal: Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 34 2.. Monitor can not power on Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 35 3. Monitor white screen Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 36 4. Monitor black screen Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 37 5. Analog input: always shows NO SIGNAL: Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 38 6. Digital input: always shows NO SIGNAL Confidential - Do Not Copy ViewSonic Corporation VX910...

  • Page 39: Recommended Spare Parts List

    7. Recommended Spare Parts List VX910-1 RSPL Item Category ViewSonic P/N Reference P/N Description Location Lead time Q'ty CABLES M-FC-0809-0829 DD0L7TLC006 Cable for MB-LCD (30P. Rev.1A) MB-LCD cable 4 weeks POWER B-PS-0204-0076 AS02B012D24 Power board Power board 4 weeks M-LCD-0826-0240 AA190E03000 LCD(TFT)19"...
  • Page 40 VX910-1 BOM Item ViewSonic P/N ReferenceP/N Description Location Q'ty #N/A 1L9VZZZVS04 L9V LCD MONITOR(L9VD,LG) B-MB-0201-2749 29L7VMB0042 L7VD M/B ASSY(FOR L9V) #N/A 3BL7VSS0033 L7VD M/B S/S ASSY(FOR L9V) #N/A DAL7VDMB2A8 PCB(M/B) L7VD MB(2L,125*108,REVA) #N/A BA039040Z01 TRANSISTOR,SMD MMBT3904(40V,200MA) Q5,Q12 #N/A AKE1A800Y02 IC EEPROM(8P,5V) 24LC02B(2K*1,SOP)
  • Page 41 Item ViewSonic P/N ReferenceP/N Description Location Q'ty #N/A CC73303MD51 CAP ELEC 330U 16V(+-20%,105C,8*11,2000HR C58,C79 #N/A CC71004MD68 CAP ELEC 100U 25V +-20%,105C,6*11,LESR C68,C69,C70,C71 E-C-0404-4904 CC81001MD71 CAP ELEC DIP 1000U6.3V +-20% 105C 8*11.5 E-X-0415-0128 BG614318D55 XTAL DIP 14.318MHZ(+-30PPM,07010-X-136-2 #N/A BG611059319 CRYSTAL DIP 11.0592MHZ(+-30PPM,49/US)
  • Page 42 Item ViewSonic P/N ReferenceP/N Description Location Q'ty M-MS-0808-9399 DDL7VDPC005 CABLE ASSY L7VD MB-VGA (15/15P,REV1A) A-PC-0106-0224 DM333181G97 POWER CORD 3P 1.8M(USA)V04VS35001218000 M-MS-0808-9681 HAL0T001012 EPE BAG L0T(HAL0T001,REV 3A) P-FM-0602-0896 HBL9V001019 END CAP-L L9V(HBL9V001,REV3A) P-FM-0602-0897 HBL9V002015 END CAP-R L9V(HBL9V002,REV3A) M-LB-0813-0747 HCL7V004013 CORE LABEL(HCL7V004,REV3A)

  • Page 43: Exploded Diagram And Spare Parts List

    8. Exploded Diagram And Spare Parts List ViewSonic Corporation VX910 Model Exploded Diagram Title Date Rev: Confidential - Do Not Copy Confidential - Do Not Copy ViewSonic Corporation ViewSonic Corporation VX910 VX910...
  • Page 44 VX910-1 Exploded Part List Item ViewSonic P/N Reference P/N Description Q'ty C-FP-0301-1048 EBL9V001018 BEZEL L9V(EAL9V001,REV3A) C-FP-0301-1047 EAL9V002014 MIDDLE BEZEL L9V(EAL9V002,REV3A) PL-BT-0706-0165 EBL7V027012 CONTROL BUTTON L7VD(EBL7V027,REV3A) M-MS-0808-9243 FEL7V003019 LOGO FRONT-VSC-38CM L7VC(FEL7V003,REV3A) M-MS-0808-9401 EBL7V028019 LENS L7VD(EBL7V028,REV3A) M-MS-0808-9402 FEL7V007014 BIRD LOGO L7VD(FEL7V007,REV3A) B-CB-0206-0188...

  • Page 45: Block Diagram

    9. Block Diagram 9.1 Video Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 46 9.2 Power Confidential - Do Not Copy ViewSonic Corporation VX910...

  • Page 47: Schematic Diagrams

    POWER +3.3V EEPROM +3.3V +3.3V 24LC16 MICRO-CONTROLLER MTV312 AC 90-264V POWER INVERTER +12V AIC1563 +5.0V AIC1117AIJ +2.5V AIC1117AIJ +3.3V Title BLOCK DIAGRAM Confidential - Do Not Copy VX910 ViewSonic Corporation Size Document Number DISPLAY Date: Thursday, February 19, 2004 Sheet...
  • Page 48 RX0+ RX5- Z5.6/NS Z5.6/NS RX5+ R121 TXC+ 4 RXC+ R122 TXC- 4 RXC- Z5.6/NC 1U/6NC 10K/6NC Title DVI-D VGA AND DVI INPUT Confidential - Do Not Copy VX910 Size Document Number ViewSonic Corporation DISPLAY Date: Thursday, February 19, 2004 Sheet...
  • Page 49 GPO1 22/6/NC XSTB 6 GPO1 GPO2 YDIO 6 GPO2 0.1U/6 GPO3 YCLK 6 BYPASS GPO3 GPO4 YOE 6 AVSS_LPLL GPO4 Title MST8131A Size Document Number DISPLAY Date: Thursday, February 19, 2004 Sheet Confidential - Do Not Copy VX910 ViewSonic Corporation...
  • Page 50 1U/6 0.1U/6 10K/6/NC 2N3904 VDD3V3 VCC12 1K/6 6.8K/6 1K/6 4.7K/6 PWR_SEL R112 1U/8 2K/6 2K/6 BRIGHTNESS 4 2N3904 Title MCU & BUTTON Confidential - Do Not Copy VX910 ViewSonic Corporation Size Document Number DISPLAY Date: Thursday, February 19, 2004 Sheet...
  • Page 51 AF730B-A2G1T/NC XSTB BXDIO YCLK YDIO LCDVDD 0/8/NC 0/8/NC 0/8/NC 0/8/NC MTH276D126 MTH276D126 LCDVCC 0/8/NC Title AF750B-A2G1T/NC PANEL INTERFACE 0.1U/6/NC 0.1U/6/NC MTH276D126 MTH276D126 Size Document Number DISPLAY Date: Thursday, February 19, 2004 Sheet Confidential - Do Not Copy VX910 ViewSonic Corporation...
  • Page 52 VOUT CX000800000/1206 ADJ/GND 200/6 LT1117/TO223 100u/16V 100u/16V 200/6 VDD3V3 0.8A Max VOUT CX000800000/1206 ADJ/GND 200/6 LT1117/TO223 100u/16V 100u/16V 330/6 Title Confidential - Do Not Copy VX910 ViewSonic Corporation POWER Size Document Number DISPLAY SCHEMATIC1 Date: Thursday, February 19, 2004 Sheet...

  • Page 53: Pcb Layout Diagrams

    11. PCB Layout Diagrams Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 54 Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 55 Confidential - Do Not Copy ViewSonic Corporation VX910...
  • Page 56 We would appreciate your completion of the Assessment Matrix below, for return to ViewSonic Corporation Assessment A.What do you think about the content after reading VX910 Service Manual? t i n e l l Precautions And Safety Notices 2.

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