Question about ViewSonic VA703mb Monitor

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I want schematic for power board No BN91-00182A of View Sonic monitor VA703M-4 and a componet list

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Tarkan271, Will you please let me know asap when you get a genuine copy of the ViewSonic schematic for the "switch-mode-power-supply" and "inverter" circuit. Don't you know that they are "top secret" documents? You absolutely must do a NEW comment here on fixya if you find some documentation!! My suggestion to you would be to call ViewSonic and ask them if you can get a .pdf file sent to your e-mail address of the schematic and BOM. Good freaking luck, guy!! 12fixlouie

Posted on Nov 13, 2009

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Posted on Jan 02, 2017

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View sonic va1931wa powersupply repair


If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
Power supply schematics to many popular brand TVs & Monitors are given.

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Hello,
This is a common indication that the power supply board has bad filter capacitors. When the capacitors go out the power board can not start up correctly so you get either a white screen, a flashing power light and no display, a flickering display or no power at all. The repair is easy, it just requires replacing the bad capacitors on the power supply board. About 10 minutes and a little soldering and your monitor should be as good as new. Here is a link to a repair kit with the correct parts to do the repair.
http://www.ccl-la.com/catalog/product_info.php?products_id=145

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Here is a link for your View Sonic power supply:

http://www.shopzilla.com/laptop-power-adapters/viewsonic-power-supply/9177/products

It should have a replacement for you.

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2 Answers

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Hello,

This model has a know issue with the power supply. Check out our repair guide at: www.ccl-la.com click the monitor repair link and then go to page 2, its listed under the Wetinghouse LCM-22W3 monitor, they use the same power supply - DAC-19M009. If you can solder then you should be able to do the repair yourself. If you don't want to do the repair we do offer a repair service for $35 plus return shipping.

I hope this helps, If so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com

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1 Answer

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1 Answer

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