ViewSonic VA2012w-1 User Manual Download

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ViewSonic VA2012w-1

VA2012wb-1

Model No. VS108

20” Color TFT LCD

Display

(VA2012w-1_VA2012wb-1_SM Rev. 1b

Jun.

2006)

ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583

Service Manual

Summary of Contents for VA2012w-1

Page 1: ...ViewSonic VA2012w 1 VA2012wb 1 Model No VS10859 20 Color TFT LCD Display VA2012w 1_VA2012wb 1_SM Rev 1b Jun 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual...

Page 2: ...ability or fitness for any particular purpose Further ViewSonic reserves the right to revise this publication and to make changes from time to time in the contents hereof without obligation of ViewSon...

Page 3: ...ety Notices 1 2 Specification 5 3 Front Panel Function Control Description 12 4 Circuit Description 14 5 Adjustment Procedure 25 6 Troubleshooting Flow Chart 50 7 Recommended Spare Parts List 53 8 Exp...

Page 4: ...f the high voltage used in the inverter circuit the voltage is exposed in such areas as the associated transformer circuits 4 LCD Module Handling Precautions 4 1 Handling Precautions 1 Since front pol...

Page 5: ...contains a small amount of mercury Please follow local ordinances or regulations for disposal 13 The LCD module contains a small amount of materials having no flammability grade The LCD module should...

Page 6: ...panel is pressed by fingers this may cause MURA Do not touch the surface of the polarizer incorrect method Take out the monitor by grasping the LCD panel That may cause MURA could scratch the surface...

Page 7: ...hen assemble disassembly bezel when assemble disassembly bezel when assemble disassembly bracket when assemble disassembly bracket 4 ViewSonic Corporation Confidential Do Not Copy VA2012w 1_VA2012wb 1...

Page 8: ...ync on Green No PC Yes Power Mac Yes Compatibility TV Box NextVision 6 Yes Power Voltage AC 100 240V 50 60Hz Yes On Mode Max Typ 50 W 47 W Power Consumption Active Off Mode Max 2 W Audio 1 W Yes Tilt...

Page 9: ...o cards Resolution Compatibility 640 x 350 640 x 480 720 x 400 640 x 400 800 x 600 832 x 624 1024 x 768 1280 x 720 1280 x 1024 1600 x 1200 1680 x 1050 Exclusions Not compatible with interlaced video P...

Page 10: ...TRICAL REQUIREMENT Horizontal Vertical Frequency Horizontal Frequency ANALOG 30 94 KHZ DIGITAL 30 82 KHZ Vertical Refresh Rate 50 75 HZ Maximum Pixel Clock Analog 205 Mhz Digital 165 MHz Sync Polarity...

Page 11: ...ctory setting when execute Auto Adjust The monitor needs to do Auto Adjust the first time a new mode is detected see section 0 Touch Function Actions While running Change Mode Auto Adjust or Memory Re...

Page 12: ...X ms Tf XXX ms Max Panel Defects Please see Panel Quality Specifications 2nd Source Panel AUO M201EW01 V 0 Type MVA Technology Active Size 433 44 H x 270 90 V Pixel Arrangement RGB Vertical Stripe Pix...

Page 13: ...ze Primary Preset Full Screen Saturation Contrast Default Brightness Default TEST PATTERN 32 GRAY No visible saturation Contrast 100 Brightness 100 Test pattern 32 gray 6 8 level saturation MECHANICAL...

Page 14: ...olution Notice Enabled OSD H Position 50 720x400 640x400 720x400 Display Size Horizontal Display Size Primary Preset Full Screen Vertical Display Size Primary Preset Full Screen Saturation Contrast De...

Page 15: ...3 Front Panel Function Control Description 12 ViewSonic Corporation Confidential Do Not Copy VA2012w 1_VA2012wb 1...

Page 16: ...ics card in your computer See your graphic card s user guide for instructions on changing the resolution and refresh rate vertical frequency VESA 1280 x 1024 60 Hz recommended means that the resolutio...

Page 17: ...CONNECTORS 2 1 AC inlet CEE22 typed connector 2 2 Audio Line in CN9 2 3 4 5 1 Line in receptacle Line in receptacle is green 2 3 Video signal connector for analog input 15P Mini D Sub PIN MNEMONI SIGN...

Page 18: ...2 3 GND Logic Ground 4 RX4 Reserved No connection 5 RX4 Reserved No connection 6 SCL DDC2B Clock 7 SDA DDC2B Data 8 VS Reserved No connection 9 RX1 TMDS negative differential input channel 1 10 RX1 TM...

Page 19: ...s LCD display can automatically function with a certain position Horizontal Sync frequency 30 94 KHz Analog 30 82KHz Digital Vertical Sync frequency 50 75 Hz 3 4 Signal level and input impedance 3 4 1...

Page 20: ...5 30 31 30 30 30 30 31 0A 90 00 00 00 FD 00 32 4B 1E 5E 15 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 56 41 32 30 31 32 77 120 53 45 52 49 45 53 00 BA _____________________________________________...

Page 21: ...Hz 1400 X 1050 60Hz 1400 X 1050 75Hz 1280 X 1024 60Hz 1280 X 960 60Hz 1152 X 864 75Hz 1600 X 1200 75Hz ______________________________________________________________________ 54 71 Detailed Timing Desc...

Page 22: ...Block s 127 CheckSum OK 5 2 Digital EDID Digital EDID is stored in IC4 Appendix F Digital EDID VA2012wb Time 08 45 59 Date Wed Sep 07 2005 _____________________________________________________________...

Page 23: ...Number ________________ 3 20 VIDEO INPUT DEFINITION Digital Signal Non VESA DFP 1 x Compatible 21 Maximum Horizontal Image Size ________________ 430 mm 22 Maximum Vertical Image Size ________________...

Page 24: ...Blanking Time 560 pixels Sync Offset 104 pixels Sync Pulse Width 176 pixels Border 0 pixels Frequency 65 29 KHz Vertical Active Time 1050 lines Blanking Time 39 lines Sync Offset 3 lines Sync Pulse W...

Page 25: ...aces analog digital and video inputs It combines a triple ADC a DVI compliant TMDS receiver a multi color on screen display OSD controller and many other functions in a single chip It provides user a...

Page 26: ...3 U4 U5 The AIC1563 is a monolithic control IC containing the primary functions required for DC to DC converters The device consists of an internal temperature compensated reference comparator control...

Page 27: ...4 This is a general purpose AC DC adapter which converter 90 240 Vac to a stabilized DC voltage 20V for inverter and 12V for system board with rated output current of 4 16A 6 4 1 Power Electrical spec...

Page 28: ...Hz Yes Yes 9 720 x 576p 50Hz 31 25kHz Yes Yes 10 720 x 576i 50Hz 15 62kHz Yes Yes 11 800 x 600 56Hz 35 1kHz Yes Yes 12 800 x 600 60Hz 37 9kHz Yes Yes 13 800 x 600 75Hz 46 9kHz Yes Yes 14 800 x 600 72H...

Page 29: ...nce RGB color Check the color temperature of RGB signal color Pattern 3 4 5 4 Sub pixel defect RGB color Check the sub pixel defect Pattern 3 4 5 5 Full white Full white Check the brightness and contr...

Page 30: ...Pattern 5 Pattern6 Pattern 7 Pattern 8 Pattern 9 28 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...

Page 31: ...Press the button to decrease the brightness Press the 2 button to enter the contrast adjustment page Press the 1 button to exit the page 3 Input Select Page Press the 2 button to switch to digital inp...

Page 32: ...he right Press the button to shift the image to the left b Vertical Position Press the 2 button to return to the horizontal position adjustment page Press the 1 button to exit the page Press the butto...

Page 33: ...the page a Horizontal Position Option Press the 2 button to enter the vertical position adjustment page Press the 1 button to exit the page Press the button to shift the menu to the right Press the b...

Page 34: ...een analog and digital modes B When in Digital Input Mode 1 Main Menu Press the 1 Menu button to enter the Main Menu Press the button to highlight the previous item or the button to highlight the next...

Page 35: ...2 button to cycle among the colors Press the 1 button to exit the page Press the button to increase the selected color level Press the button to decrease the selected color level 5 Information Page P...

Page 36: ...ge Press the 1 button to exit the page Press the button to shift the menu to the right Press the button to shift the menu to the left b Vertical Position Option Press the 2 button to enter the horizon...

Page 37: ...analog and digital modes C Other Information When the No Signal or Out of Range messages appear If no input signal is detected the No Signal message will appear in the center of the screen If the V Sy...

Page 38: ...heck whether the firmware version If not please following procedure to upgrade to the latest version 1 Equipment needed VA2012w b PC Personal computer LPT cable Fixture LM5ISP Firmware upgrade program...

Page 39: ...onment Hardware PC or notebook parallel printer cable ISP tooling Software If OS was Win2000 or WinXP please install PORT95NT exe In order to ensure can execute ISP program please set BIOS in PC or No...

Page 40: ...T95NT exe in Windows install the program see Fig 0 1 Fig 0 1 0 2 Keep on press Next 4 times to go through the installation processes see Fig 0 2 Fig 0 2 37 ViewSonic Corporation Confidential Do Not Co...

Page 41: ...e Typical then press Next see Fig 0 3 Fig 0 3 0 4 Keep on press Next 4 times to go through the installation processes see Fig 0 4 Fig 0 4 38 ViewSonic Corporation Confidential Do Not Copy VA2012w 1_VA...

Page 42: ...er could download ISP driver and PORT95NT install from Myson Century website www myson com tw 1 2 After extracting the ZIP file the total files list as Fig 1 0 and double click the file of setup exe t...

Page 43: ...see Fig 1 1 Fig 1 1 1 4 Keep default setting or press Change button for selecting the path that you want and then press Next button to continue see Fig 1 2 Fig 1 2 40 ViewSonic Corporation VA2012w 1_V...

Page 44: ...1 5 Press Install button to continue see Fig 1 3 Fig 1 3 1 6 Installation has finished press Finish button see Fig 1 4 Fig 1 4 41 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...

Page 45: ...ult setting see Fig 2 1 Fig 2 1 2 2 Security file is a key to use ISP function press OK button see Fig 2 2 Fig 2 2 2 3 The warning is used to remind user of that different CPU rate may cause ISP funct...

Page 46: ...5 shows the setting for security code of software ISP it needs 2 command No and key in command sequentially for 7C 4C 77 The command No and command must be set by user while coding About the detailed...

Page 47: ...3 2 If user change the MTV type it must load file again or the buffer of load file will be cleared 3 3 CRC cyclic redundancy check the host can check CRC register s result instead of reading every by...

Page 48: ...ly procedure Open back cover 5 unlock stand screw 4 take out LCD 1 put lcd on the desk with sponge 2 tear off AL FOIL 6 unlade I o cover 3 45 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do...

Page 49: ...t lvds cable 9 tear off yellow tape 10 pull out CCFT CABLE 7 unlock shielding screw 8 unlock button b screw 11 pull out button b cable from button b connector 12 46 ViewSonic Corporation VA2012w 1_VA2...

Page 50: ...ock bkt L R screw 18 unlade speaker 13 take down shielding 14 tear off mylar and rubber 16 unlock bezel screw 17 tear off AL FOIL 15 47 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not C...

Page 51: ...pull out cable from pcb a 21 unlock pcb a screw and reclaim mylar 19 take out pcb a 20 48 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...

Page 52: ...check cover carton 3 assemble END CAP R L 1 stick lcd film packing method 2 cover PE BAG 1 1 1 2 Front of PANEL base manual manual VGA DVI CABLE VGA DVI CABLE handle stick Packing for shipping proced...

Page 53: ...Check U4 U3 pin2 3 3V correct Check U5 pin 2 1 8V correct Check Y1 frequency 12MHz Change M B Change Y1 Change U5 Change U3 U4 Change power board 6 Troubleshooting Flow Chart 50 ViewSonic Corporation...

Page 54: ...in 1 2 12V correct Check U6 pin 6 Volume and Q7 Check U6 pin12 mute p11 stby Change M B Check input source or change J1 Change speaker Change power board module Change Q7 Change U6 NO OK NO NO NO NO O...

Page 55: ...eck panel cable Check open short of IC2 Check panel power supply of Q4 Check panel Change M B Change panel cable Repair open short Change Q4 Change panel OK OK OK OK NO NO NO NO 52 ViewSonic Corporati...

Page 56: ...ghted and correlated with the ECN ECR approved by ViewSonic Corporation This is to eliminate repeated cross checks of each item between this version and prior versions 1 B 00004142 Button board Rev 1b...

Page 57: ...13 MF30060BBJ6 SCREW F3 0 6 B NI GP 10 39 M MS 0808 8986 MBLI1004018 IO NUT LI1 MBLI1004 REV3A GP 4 40 M SCW 0824 0814 MM30060BBJ3 SCREW M3 0 6 B NI GP 1 41 N A MS35080B456 SCREW F3 5 8 B NI WASHER GP...

Page 58: ...P 1 89 N A HDW0VX01010 ENERGY STAR NOTICE W0VX HDW0VX01 R3A GP 1 90 PL 00005198 JXLM5003011 HANDLE LM5S JXLM5003 REV 3B GP 1 91 M 00004158 JXW0ZB01019 LCD FILM W0ZB A1 JXW0ZB01 REV3A GP 1 92 M LB 0813...

Page 59: ...0 6 B NI GP 10 39 M MS 0808 8986 MBLI1004018 IO NUT LI1 MBLI1004 REV3A GP 4 40 M SCW 0824 0814 MM30060BBJ3 SCREW M3 0 6 B NI GP 1 41 N A MS35080B456 SCREW F3 5 8 B NI WASHER GP 1 42 N A FCL7TA03011 AL...

Page 60: ...1 89 N A HDW0VX01010 ENERGY STAR NOTICE W0VX HDW0VX01 R3A GP 1 90 PL 00005198 JXLM5003011 HANDLE LM5S JXLM5003 REV 3B GP 1 91 M 00004158 JXW0ZB01019 LCD FILM W0ZB A1 JXW0ZB01 REV3A GP 1 92 M LB 0813 1...

Page 61: ...8 Exploded Diagram and Exploded Parts List Model Title Date Rev ViewSonic Corporation 58 ViewSonic Corporation Confidential Do Not Copy VA2012w 1_VA2012wb 1...

Page 62: ...00004152 DD0L9VLC023 CABLE LVDS 30P 140MM LINKTEC AU L9VA GP 1 25 CB 00004150 DDW0VABU007 CABLE MB BUTTON 11P 11P 240MM W0VA GP 1 26 CB 00004151 DD0W0EIV008 CABLE MB INV 7P 8P 320MM W0E GP 1 27 E 000...

Page 63: ...DS 30P 140MM LINKTEC AU L9VA GP 1 25 CB 00004150 DDW0VABU007 CABLE MB BUTTON 11P 11P 240MM W0VA GP 1 26 CB 00004151 DD0W0EIV008 CABLE MB INV 7P 8P 320MM W0E GP 1 27 E 00004155 DN0TE130F01 SPEAK ASSY L...

Page 64: ...010 Base assy 1 PACKING PART LIST VA2012w 1 ViewSonic Model Number VS10859 ViewSonic Model Number VS10859 Rev 1b Item ViewSonic P N Ref P N Location Q ty 1 N A 1LW0VAXVS05 VA2012wb monitor 1 2 P 00004...

Page 65: ...V 5V 12V 12V PHONE JACK MUTE STANDBY VOLUME 5V LCD_VDD 3 3V 1 8V Key Pad BL ON BL BRIGHT SDA CSL VGA SDA VGA SCL DVI SDA DVI SCL VGA SDA VGA SCL DVI SDA DVI SCL SDA CSL LCD ON RSTN REFCLKI MCU VDD 3 3...

Page 66: ...GND_A GND_A GND_A GND_A GND_A MCU VDD MCU VDD 0 6 R107 75 6 R4 1000pF 6 NC C1 BEAD 30 6 L3 D2 BAV99 NC 1 3 2 22pF 6 NC C3 4 7K 6 R5 1K 6 R3 D3 ZD5V6 NC 1 2 D4 ZD5V6 NC 1 2 0 6 L2 100 6 R119 100 6 NC...

Page 67: ...3 2 D13 ZD5V6 NC 1 2 1K 6 R16 10 6 R18 4 7K 6 R12 10 6 R17 10 6 R11 D14 BAV99 NC 1 3 2 D15 BAV99 NC 1 3 2 CN2 DVI I Female 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 31 32 C1 C2 C3...

Page 68: ...105 104 103 AGND RX2 RX2 AVCC RX1 RX1 AGND RX0 RX0 AGND RXC RXC AVCC REXT PVCC PGND ADC_GNDA ADC_VAA BVMID BIN1 BIN1 SOGI1 GIN1 GIN1 RIN1 RIN1 RVMID ADC_VAA ADC_GNDA BIN0 Y0 BIN0 Y1 SOGI0 Y2 GIN0 Y3 G...

Page 69: ...20 21 11 13 16 17 15 14 24 23 9 8 7 6 5 4 3 28 27 26 25 2 29 30 31 34 35 1 36 37 18 19 38 39 40 32 33 PC2 SOGI PC1 PC0 RSTB VDD PD6 GND OSCO OSCI P30 RXD P31 TXD P34 T0 P35 T1 PB3 ADC3 INTE1 PB2 ADC2...

Page 70: ...LCD VDD 18V LCD VDD 5V 12V GND_A GND_A GND_A GND_A GND_A R67 10K 6 NC C46 330uF 16V L11 BEAD 120 1206 NC C45 2200pF 6 R69 0 6 NC L10 BEAD 120 1206 NC C44 2200pF 6 CN4 1841 30P 1 3 5 7 9 11 13 15 17 19...

Page 71: ...1206 NC R83 13 3K 1 NC C54 0 1uF 8 C63 2200pF 6 NC U5 AIC1084 TO252 1 2 3 ADJ GND VOUT VIN C52 0 1uF 6 R90 150 6 1 C83 10K 6 C65 330pF 6 NC D26 RB081L 20 2 1 C66 330uF 16V C61 330uF 16V NC R76 330K 6...

Page 72: ...10K 6 R99 20K 6 R103 10K 6 Q9 DTC144EUA 2 3 1 C75 0 47uF 6 U6 TDA7496L 4 9 5 6 7 17 14 12 11 10 13 15 16 1 2 3 19 20 18 INL INR VAROUT_L VOLUME VAROUR_R OUTL OUTR MUTE STBY SVR GND VS VS GND GND GND...

Page 73: ...11 PCB Layout Diagrams MB TOP70 70 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...

Page 74: ...MB TOP 71 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...

Page 75: ...MB BOTTOM7 72 ViewSonic Corporation VA2012w 1_VA2012wb 1 Confidential Do Not Copy...

Page 76: ...art 7 Recommended Spare Parts List 8 Exploded Diagram and Exploded Parts List 9 Block Diagrams 10 Schematic Diagrams 11 PCB Layout Diagrams B Are you satisfied with this Service Manual Item Excellent...

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