Service Manual ViewSonic VA1912w-2 VA1912wb-2 Model No. VS10866 19” Color TFT LCD Display (VA1912w-2_VA1912wb-2_SM Rev. 1b Aug. 2006) ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583...
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.
Specification Front Panel Function Control Description Circuit Description Adjustment Procedure Troubleshooting Flow Chart Recommended Spare Parts List Exploded Diagram and Exploded Parts List Block Diagram 10. Schematic Diagrams 11. PCB Layout Diagrams ViewSonic Corporation VA1912w-2_VA1912wb-2 Confidential - Do Not Copy...
(14) The LCD module is designed so that the CCFL in it is supplied by a Limited Current Circuit (IEC60950 or UL1950). Do not connect the CCFL to a Hazardous Voltage Circuit ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
Take out the monitor by grasping the LCD panel. That may cause “ MURA“. Place the monitor on a clean & soft foam pad . Place the monitor on foreign objects . That could scratch the surface of panel ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
1280 x 960, 1280 x 1024, 1440 x 900 Resolution Compatibility * The image vertical size might not be full screen. But the image vertical position should be at the center. Exclusions Not compatible with interlaced video ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Color = Black Power Saving Operation(Method) VESA DPMS Signaling ON Mode < W (max) / W (typ) Power Consumption ACTIVE OFF < ON Mode = N/A, ACTIVE OFF < 5 sec Recovery Time ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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● The monitor needs to do “Auto Adjust” the first time a new mode is detected but except the DOS mode 640 x 350, 720 x 400 & 640 x 400.(see section “0-Touch™ Function Actions”) ● While running Change Mode, Auto Adjust or Memory Recall, the image shall blank ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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White Balance. (Not shown on user’s guide) [1] + [▼] Power Lock [1] + [▲] OSD Lock [ X] Audio Mute on /off Remark : All the short cuts function are only available while OSD off ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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, Mute* Color Adjust sRGB, 9300K, 6500K(default), 5400, 5000, User Color [R, G, B] Information H Frequency, V Frequency, Resolution, Pixel Clock, Serial Number, Model Number, “www.ViewSonic.com” Manual Image Adjust H. Size* , H./V. Position* , Fine Tune* , Sharpness*...
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Connector PC99 requirement Audio in Cable type / length 3.5mm stereo cable / 1.8m length NOTE: THERE IS NO GUARANTEE <1 W POWER Audio DPMS CONSUMPTION IN ACTIVE OFF MODE, WHEN THE AUDIO CABLE IS CONNECTED ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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” on page 10. ViewSonic Corporation Confidential - Do Not Copy...
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• 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.) ViewSonic Corporation Confidential - Do Not Copy...
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2. To adjust selected color, press and . . Important: If you select RECALL from the Main Menu when the product is set to a Preset Timing eset. Mode, colors return to the 6500K factory pr ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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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).
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Resolution Notice allows the user to enable or disable this notice. If you enable the Resolution Notice shown above and your computer is set at a resolution other than 1440 x 900, the following screen appears. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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OSD Background allows the user to turn the OSD background On or Off. Memory Recall returns the adjustments back to factory settings if the display is operating in a factory Preset Timing Mode listed in the Specifications of this manual. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
The TSUM17AK also incorporates a new Dynamic Frame Rate (DFR) generator for the digital output video to the display panel that preserves the advantages of a fixed output clock rate, while eliminating the output end of frame short-line. ViewSonic Corporation Confidential - Do Not Copy...
Full Screen 50% White (Gray) Inspection Item: Bright Dot, Particle, Line Defect & Mura 9. White Box Test Signal: 1280*1024@60Hz Test Pattern: Window standard pattern Inspection Item: Particle, Line Defect, Power, Image Remain & Mura ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
Full Screen 50% Red Figure 4 Green Full Screen 50% Green Figure 5 Blue Full Screen 50% Blue Figure6 White Full Screen White Figure7 Black_Tile Black Tile Under White Background Figure 8 ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Take the cable of Print Port to connect Print Port of PC and Print Port of fixture(and EDID burn in the same fixture) to connect VGA Cable between D-sub of fixture and D-sub of AD Board of monitor,the monitor must be turned on the power。 Step 2 : Open ISP Tool ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
”確定”。 Step 4: Press ”Read” then enter as below figure,then press to down load the program of BIOS (*.bin)。 If down load BIOS that is successful as below figure then press”確定”。 ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
BIOS procedure。 The BIOS procedure is displayed the message ”Verify OK” that the BIOS procedure is successful。 Step 6 : Press ”Dis Con” then leave the mode of ISP。 ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Step 7: When select ”ReConnect” and press “Run” then repeat to connect the mode of ISP into next the action of BIOS procedure ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
1.4 Place the monitor into the carton and then put all the accessories into the carton. As last, close the carton and seal it with tape. (Figure 4) Figure 4 Figure 3 ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Step 1 : Remove the Seat Assy Step 2 : Remove the Stand Cover. Step 3 : Loose and remove 4 screws Step4 : Remove the Stand Assy Step 5 : Completed. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Separate Bezel hooks to take Bezel and Rear Cover apart. Step 1 : Loose and remove 2 screws. Step 2 : Separate Bezel hooks to take Bezel and Rear Cover apart. Step 3 : Remove Rear Cover. Step 4 : Completed. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Loose and remove 4 screws. Step 3 : Lift up LCD module and remove bezel. Step 4 : Remove 2 pieces of Backlight wires. Step 5 : Remove 2 pieces of Backlight wires. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Step 6 : Loose and remove 2 screws. Step 7 : Loose and remove 2 screws. Step 8 : Loose and remove 4 screws. Step 9 : Remove the PCBA Cover ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Loose and remove 4 screws. Step 2 : Remove Lips Board Step 3 : Remove 2 pieces of FFCs. Step 4 : Remove the FFC. Step 5 : Loose and remove 4 screws. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Step 1 : Place new AD Board. And fasten 4 fixed screws. Step 2 : Fasten 4 fixed screws. Step 3 : Insert FFC. Step 4 : Insert 2 pieces of FFCs . ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Step 5 : Insert new Lips Board. Step 6 : Fasten 4 fixed screws. Step 7 :Completed. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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5. Remove OSD Board Step 1 : Separate both Audio Cable. Step 2 : Take OSD Board apart. Step 3: Completed. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Insert Audio cable to connectors of New OSD Board. Step 3: Completed. 7. Add Cover to AD PCB Heatsink Step 1 : Join the PCB Cover. Step 2 : Fasten 4 fixed screws. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Step 4 : Fasten 2 fixed screws. Step 5 : Insert 2 pieces of Backlight wires. Step 6 : Insert 2 pieces of Backlight. wires. Step 7 : Join LCD module and remove bezel. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Insert FFC. Step 10 : Completed. 8. Rear Assy & Stand Assembly Step 1 : Place Rear Cover. Step 2 : Fasten 2 fixed screws. Step 3 : Place the Stand Assy. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Step 4 : Fasten 4 fixed screws. Step 5 : Join the Stand Cover. Step 6 : Join the Seat Assy Step 7 : Completed. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
Bright Dot Display Dark Dot Backlight Light Leakage Mura Panel Change Check Panel Image Sticking Brightness spot Particle Dot Defect Image Remain Group Bright Dots Others Cosmetics Defect TEST Next Step Completed ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Panel Change Check Panel Beat Display Shut Down AD/B Change Display Wave Check PCBA Power/B Change CNT/B Change Check Panel Panel Change No Backlight Check Adapter Adapter Change TEST Next Step Completed ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Check Adapter Adapter Change No signal AD/B Change Check PCBA CNT/B Change R.G.B Display Abnormal VGA cable Check Wire Gray Scale DVI cable Display Panel Change Check Panel Abnormal TEST Next Step Completed ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Vertical Check Panel Panel Change Band Defect Horizontal Band Defect Power Saving Display Check PCBA AD/B Change Abnormal AD/B Change Power/B Change Peculiar Smell Check PCBA Inverter/B Change TEST Next Step Complete ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Power/B Change LED Off Check PCBA Abnormal Inverter/B LED Dark OSD/B Change LED Abnormal OSD Cable Check Wire LED Loss DC Power CNT Cable Change LED Flicker Adapter Change TEST Next Step Completed ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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CNT/B Change Abnormal Power/B Change Loud Check PCBA Inverter/B Change Abnormal OSD/B Change Check Wire No Voice OSD Cable Change Loudspeaker L/R Same Check Loudspeaker Change Volume Loudspeaker Next Step TEST Noise Completed ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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AD/B Change Display Abnormal EDID Update Check EDID Code Check PCBA TV /B Change TV Function Check Wire Display AV Cable Change Abnormal Remote controller Check Controller Change TEST Next Step Complete ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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Use OSD Color Menu to adjust color setting. Dark area distorted Use OSD Color Menu to adjust color setting. White color is not white Use OSD Color Menu to adjust color setting. ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
Remark 1: Above listed items are examples, supplier can expand the rows to add more necessary items. Remark 2: All revised RSPLs with newly added items or any change made should be highlighted and correlated with the ECN/ECR approved by ViewSonic Corporation.
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Remark 2: All revised RSPLs with newly added items or any change made should be highlighted 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.
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Seat Assy,A190A2-H05,ABS PA757N,Black(J91A11B5) Cushion,A190A2-T05,EPS,WHITE,450 mmx160 mmx145 mm,PS FOAM (Left),Green P-00004295 78-D004392 Cushion,A190A2-T05,EPS,WHITE,450 mmx160 mmx145 mm,PS FOAM (Right),Green P-00004296 78-D004388 79-D004425 Shipping Package Information for ,A190A2-H05,ViewSonic DC-00005604 77-D008326 Carton Label for ,A190A2-H05,76.2 mmx76.2 mm,VSC_VA1912w-2,Green II P-00005607 78-D008325 Carton,A190A2-H05,538 mmx158 mmx470 mm,VSC_VA1912w-2,Green II DC-00005605...
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BOM LIST (VA1912WB-2) ViewSonic Model Number: VS10866 Rev: 1a Serial No. Prefix: QBM Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty E-00005747 MJ0A10AK01 19" Wide Semi Product, A190A2, 1440X900, TN Driver IC, Scan, HX8636APD400(TSMC), 300Channel, , 36X8636401 RoHS, Green I L3J009XXXX 19"...
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Item ViewSonic P/N Ref. P/N Description Location Universal number# Q'ty Label, Pallet Barcode Label, 75x40, A190E2-H03, VSC, 0.021 DC-00000586 7741999141 Non Green Tape, Security Tape, OPP, L900xW50x0.045mm, VSC, M-00000560 7345511002 Non Green Customer Label, A170E1-H0G, 180 mm, 100 mm, Green...
8. Exploded Diagram and Exploded Parts List EXPLODED PARTS LIST (VA1912WB-2) EXPLODED PARTS LIST (VA1912W-2) ViewSonic Model Number: VS10866 ViewSonic Model Number: VS10866 Rev: 1a Rev: 1b Serial No. Prefix: QBM Serial No. Prefix: Q90 Item ViewSonic P/N Ref. P/N...
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PACKING PART LIST ( VA1912WB-2 ) PACKING PART LIST ( VA1912W-2 ) ViewSonic Model Number: VS10866 ViewSonic Model Number: VS10866 Rev: 1a Rev: 1b Item ViewSonic P/N Ref. P/N DESCRIPTION Q'ty Item ViewSonic P/N Ref. P/N Location Q'ty VA1912W-2 LCD Monitior...
9. Block Diagram Speaker OSD Key Pad / Audio Out 3.3V Main Board LCD Module D-sub Analog Video Signal DC-12V DC-5V LIPS AC Power Backlight Audio In ViewSonic Corporation Confidential - Do Not Copy VA1912w-2_VA1912wb-2...
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AUDIOR- DCDC_ON/OFF AUD_DET V12A AUD_DET V12A V33P V33P V33P V33P VOL_ADJ VOL_ADJ POWER V33C AUDIO_ON LED_GL V18C V33C V12A V12A INV_ON/OFF ViewSonic Corporation INV_ON/OFF INV_ADJ INV_ADJ Model System Diagram Title Date Rev: VA1912w-2_VA1912wb-2 Confidential - Do Not Copy ViewSonic Corporation...
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) ViewSonic Corporation Confidential - Do Not Copy...