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Is there a fuze in a veiwsonic va521 Does not work and i am trying to fix it .

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Hi

The schematic doesn't show a fuse but sometimes different production runs are different from the schematic. First thing to do before anything else is to disconnect all the cables from the monitor. Do not expose the insides with either a power cable or data cable conected. Once you have the power supply board exposed you'll see the fuse. If it is blown then make sure you check the triacs and the capacitors before putting power back to the unit. The caps should be checked with an ESR meter because shorts are not physically evident. The Triac needs to to be checked with a SCR/Triac tester. If you can't do this kind of work then you can send it to me or take it to a local serviceman.

Thanks

Posted on Jul 24, 2009

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