ViewSonic VA2012w-2 User Manual Download

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ViewSonic VA2012w-2

VA2012wb-2

Model No. VS108

20” Color TFT LCD

Display

(VA2012w-2_VA2012wb-2_SM Rev. 1

Jun. 2006)

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

Service Manual

Summary of Contents for VA2012w-2

Page 1: ...ViewSonic VA2012w 2 VA2012wb 2 Model No VS10859 20 Color TFT LCD Display VA2012w 2_VA2012wb 2_SM Rev 1a Jun 2006 ViewSonic 381 Brea Canyon Road Walnut California 91789 USA 800 888 8583 Service Manual...

Page 2: ...either expressed or implied with respect to the contents hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose Further ViewSonic reserves the right to...

Page 3: ...ety Notices 1 2 Specification 4 3 Front Panel Function Control Description 10 4 Circuit Description 12 5 Adjustment Procedure 25 6 Troubleshooting Flow Chart 50 7 Recommended Spare Parts List 53 8 Exp...

Page 4: ...HOT CHECK 4 1 Plug the AC cord directly into the AC outlet Do not use an isolation transformer during this check 4 2 Connect a 1500 ohm 10 watt resistor paralleled by a 0 15uF capacitor between each m...

Page 5: ...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 6: ...hen assemble disassembly bezel when assemble disassembly bezel when assemble disassembly bracket when assemble disassembly bracket ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 3...

Page 7: ...pliant with Revision 1 3 Sync Compatibility Separate Sync Video Compatibility Shall be compatible with all PC type computers Macintosh computers and after market video cards Resolution Compatibility 6...

Page 8: ...dered US Type Power Cable Separate 3 prong NEMA 5 15P type plug Length 1 8m Connects to AC outlet Color Black European Type Power Cable Schuko CEE7 7 Length 1 8m Connects to AC outlet Color Black Powe...

Page 9: ...5kkHz Yes N A 26 1600 x 1200 75Hz 93 8kHz Yes N A 27 1680 x 1050 60Hz 65 3 kHz Yes N A 28 1680 x 1050 75Hz 82 3 kHz Yes N A 29 1920 x 1080i 50Hz 56 5kHz Yes N A 30 1920 x 1080p 50Hz 62 5kHz Yes N A Pr...

Page 10: ...stereo cable 1 8m length Panel Characteristics 1st Source Panel QDI QD20AL01 Type TN Technology Active Size 433 44 H x 270 9 V Pixel Arrangement RGB Vertical Stripe Pixel Pitch 0 258 mm Glass Treatme...

Page 11: ...ast Ratio 800 1 Typ 4001 Min Color Depth 16 7 million colors 8bit panel Viewing Angle Horizontal 176 deg Typ 150deg Min CR 10 Viewing Angle Vertical 176 deg Typ 150deg Min CR 10 Response Time 10 90 Ta...

Page 12: ...ce for the bezel is the silver color chip for VA2012w and midnight gray color for VA2012wb provided by ViewSonic Neck Base Speaker Cover and Rear Cover Color The reference for the bezel is the black c...

Page 13: ...ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 3 Front Panel Function Control Description 10...

Page 14: ...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 15: ...ive under analog input Contrast Brightness Audio Adjust Color Adjust Information Manual Image Adjust Setup Menu Memory Recall 1 4 Contrast and Brightness can be directly controlled with UP DOWN key 1...

Page 16: ...SDA DDC Data 13 HS Horizontal Sync 14 VS Vertical Sync 15 SCL DDC Clock 3 ELECTRICAL SPECIFICATIONS 3 1 Standard conditions Display Area 433 44 x 270 9 mm Video Signal 0 7Vpp Contrast Default Brightne...

Page 17: ...CD display can automatically function with a certain position Horizontal Sync frequency 30 94 KHz Analog Vertical Sync frequency 50 75 Hz 3 4 Signal level and input impedance 3 4 1 Video Signal level...

Page 18: ...00 51 39 32 80 30 36 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 2D 32 0A 20 20 20 00 FF __________________________...

Page 19: ...TIMING II 800 X 600 72Hz VESA 800 X 600 75Hz VESA 832 X 624 75Hz Apple Mac II 1024 X 768 60Hz VESA 1024 X 768 70Hz VESA 1024 X 768 75Hz VESA 1280 X 1024 75Hz VESA 37 Manufacturer s Reserved Timing 115...

Page 20: ...nking 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 Width...

Page 21: ...___________________________________________________ 90 107 Detailed Timing Descriptor Block 3 Monitor Range Limits Min Vertical Freq 50 Hz Max Vertical Freq 75 Hz Min Horiz Freq 30 KHz Max Horiz Freq...

Page 22: ...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 2D 32 0A 20 20 20 00 FE ______________________________________________________________________ 08 09 ID Manufacturer...

Page 23: ...8 75Hz VESA 1280 X 1024 75Hz VESA 37 Manufacturer s Reserved Timing 1152 X 870 75Hz Apple Mac II 38 53 Standard Timing Identification 1680 X 1050 75Hz 1600 X 1200 60Hz 1400 X 1050 60Hz 1400 X 1050 75H...

Page 24: ...2 89 Detailed Timing Descriptor Block 2 Monitor Serial Number Q93060100001 ______________________________________________________________________ 90 107 Detailed Timing Descriptor Block 3 Monitor Rang...

Page 25: ...on screen display OSD controller and many other functions in a single chip It provides user a simple flexible and cost effective solution for various flat panel display products The NT68563HF operate...

Page 26: ...with MCU and support up to 400Kbit per second transmit rate 6 1 2 Power Regulator AIC1563 U1 AIC1117 U3 U4 U5 The AIC1563 is a monolithic control IC containing the primary functions required for DC to...

Page 27: ...r on 0 0 2 for off Rated Output Strike on Voltage 1500 2000Vrms Rated Output Voltage 710Vrms at 6mA Rated Output Frequency 40 50KHz OUTPUT Rated Output Current 6 7mA 6 4 This is a general purpose AC D...

Page 28: ...es N A 7 720 x 400 70Hz 31 5kHz Yes N A 8 720 x 480i 59 94 60Hz 15 7 kHz Yes N A 9 720 x 576p 50Hz 31 25kHz Yes N A 10 720 x 576i 50Hz 15 62kHz Yes N A 11 800 x 600 56Hz 35 1kHz Yes N A 12 800 x 600 6...

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 ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 27...

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: ...irmware updates procedure When you received a received monitor please check whether the firmware version If not please following procedure to upgrade to the latest version 1 Equipment needed VA2012w b...

Page 39: ...tor Appendix A How to install the software for ISP 0 To setup ISP environment Hardware PC or notebook parallel printer cable ISP tooling Software If OS was Win2000 or WinXP please install PORT95NT exe...

Page 40: ...nfidential Do Not Copy VA2012w 2_VA2012wb 2 37 0 1 Double click the PORT95NT 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 proces...

Page 41: ...Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 38 0 3 Choose 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...

Page 42: ...ted restart the PC or notebook See Fig 0 5 Fig 0 5 1 Install ISP 1 1 User could download ISP driver and PORT95NT install from Myson Century website www myson com tw 1 2 After extracting the ZIP file t...

Page 43: ...Do Not Copy VA2012w 2_VA2012wb 2 40 1 3 Press Next button to continue 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 butt...

Page 44: ...ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 41 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...

Page 45: ...we could find the shortcut in the setting path or the program bar default 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 warnin...

Page 46: ...djusting bar to decrease speed of IIC bus See Fig 2 4 Fig 2 4 2 5 Fig 2 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 com...

Page 47: ...o the MCU and select AUTO item then press RUN button see fig3 1 Fig 3 1 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 che...

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 ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA20...

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 ViewSonic Corporation Confidential Do...

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 ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2...

Page 51: ...pull out cable from pcb a 21 unlock pcb a screw and reclaim mylar 19 take out pcb a 20 ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 48...

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: ...VA2012w 2_VA2012wb 2 50 6 Troubleshooting Flow Chart No Power No Power Check CN6 pin 1 2 12V correct Check U4 U3 pin2 3 3V correct Check U5 pin 2 1 8V correct Check Y1 frequency 12MHz Change M B Chang...

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 ViewSonic Corporation...

Page 56: ...s to eliminate repeated cross checks of each item between this version and prior versions Electronic Components RECOMMENDED SPARE PARTS LIST VA2012w 2 Description ViewSonic Model Number VS10859 Serial...

Page 57: ...10 37 M MS 0808 8986 MBLI1004018 IO NUT LI1 MBLI1004 REV3A GP 2 38 M SCW 0824 0814 MM30060BBJ3 SCREW M3 0 6 B NI GP 1 39 N A MS35080B456 SCREW F3 5 8 B NI WASHER GP 1 40 N A FCL7TA03011 AL 50 25 L7TA...

Page 58: ...V3A GP 1 88 M LB 0813 0747 HCL7V004013 CORE LABEL HCL7V004 REV3A GP 1 89 N A HCW0VA02016 ID LABEL S W0VA HCW0VA02 REV3A GP 1 90 M LB 0813 0745 HCL7V002011 SERIAL LEBAL L7V HCL7V002 REV3A GP 1 91 M LB...

Page 59: ...VA FAW0VA02 REV3A GP 1 31 N A FAW0VA03011 LCD BKT R W0VA FAW0VA03 REV3A GP 1 32 N A GBL9C001016 PANEL SPONGE L9C GBL9C001 REV3A GP 1 33 N A FCL70007019 MYLAR SCALAR LCD L70L A FCL70007 R3A GP 1 34 N A...

Page 60: ...4165 38W0VABS001 W0VA BASE SUB ASSY GP 1 83 CB 00002602 DDL7VDPC005 CABLE MB VGA 15 15P 1 8M L7VD GP 1 84 CB 00005211 DDW9ZAPA009 CABLE AUDIO ST 1 8M BLACK W9ZA GP 1 85 P 00004159 HAL0T002019 PE BAG L...

Page 61: ...8 Exploded Diagram and Exploded Parts List Model Title Date Rev ViewSonic Corporation ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 58...

Page 62: ...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 00004155 DN0...

Page 63: ...ABLE 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 00004155 DN0TE130F01 SPEAK...

Page 64: ...0 Base assy 1 PACKING PART LIST VA2012w 2 ViewSonic Model Number VS10859 Rev 1a Item ViewSonic P N Ref P N Location Q ty 1 N A 1LW0VAXVSA5 VA2012w2 monitor 1 2 P 00004161 HBW0VA01019 END CAP L 1 3 P 0...

Page 65: ...I P X TAL 12MHz SI9435 TDA7496L STEP DOWN CONVERTER 3 3V CVDD1V8 1 8V MCU VDD 3 3V 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 S...

Page 66: ...A GND_A GND_A GND_A GND_A GND_A GND_A MCU VDD MCU VDD C2 0 1uF 6 IC1 74LVC14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 D0 Q0 D1 Q1 D2 Q2 GND Q3 D3 Q4 D4 Q5 D5 VCC D2 BAV99 NC 1 3 2 D4 ZD5V6 NC 1 2 D5 BAV99 NC...

Page 67: ...14 10 6 R13 10 6 R20 10 6 R19 4 7K 6 R10 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 C4 C5 C6 TX2 TX2 TX2 4 Shld TX4 TX4 DDC CLK DDC DATA A VS TX1 TX...

Page 68: ...GND 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 GIN0 Y4 RIN0 Y5 RIN0 Y6 ADC_GND Y7 VREF...

Page 69: ...K 6 NC D31 CHN217 1 3 2 R113 10K 6 Q2 MMST3906 3 1 2 R63 4 7K 6 D32 CHN217 1 3 2 D33 CHN217 1 3 2 R52 4 7K 6 R53 4 7K 6 R112 1K 6 C37 0 1uF 6 IC4 AT24C16 1 2 3 4 8 7 5 6 A0 A1 A2 GND VCC WP SDA SCL R4...

Page 70: ...VDD 18V LCD VDD 5V 12V GND_A GND_A GND_A GND_A GND_A C46 330uF 16V R72 2 2K 6 C48 0 1uF 6 Q3 SI9435 2 3 4 5 7 6 8 1 L12 BEAD 120 1206 Q4 MMBT3904 3 2 1 C47 0 1uF 6 R73 4 7K 6 R71 4 7K 6 L10 BEAD 120...

Page 71: ...6 1 R74 0 1206 R77 240K 6 1 R78 1K 6 1 R88 330 6 1 C70 100uF 25V R90 150 6 1 C54 0 1uF 8 R79 3K 6 1 C71 100uF 25V C50 330uF 16V NC C58 1000pF 6 D19 1SS355 C57 2200pF 6 C60 1000uF 6 3V CN6 CONN 4x2 R...

Page 72: ...E STBY SVR GND VS VS GND GND GND GND GND GND R102 10K 6 C73 0 1uF 6 L24 BEAD 120 0805 1 2 R91 1K 6 R104 10K 6 C79 220pF 6 L23 BEAD 120 0805 1 2 C72 1uF 8 R105 10K 6 C80 330uF 16V C75 0 47uF 6 R103 10K...

Page 73: ...MB TOP 11 PCB Layout Diagrams ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 70...

Page 74: ...MB TOP ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 71...

Page 75: ...MB BOTTOM ViewSonic Corporation Confidential Do Not Copy VA2012w 2_VA2012wb 2 72...

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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