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malschuler
New Member
Last Activity: 03-14-2014, 09:09 PM
Joined: 11-08-2013
Location: Warren
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  • Vizio VW42L Bad Power Supply Questions

    I have a 42" Vizio VW42L that I'm trying to fix. I've extensively read all the posts I can find about this unit, but I'm stumped. I'm getting the white logo/amber logo, but no sound, picture, backlight. I can turn the set on and off.

    The power supply only puts out 5v until I unplug the inverter boards. They I get 5.13 v, 24.25 v, but only 10.75 v instead of 12. Both inverter boards were bad, the master had swollen caps, the slave had a blow chip and bad mosfets. I bought replacement boards instead of redoing both boards, doing the zener mod, etc. The set still doesn't work...
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  • Thanks for all of your help

    I know just enough about electronics to be dangerous, but I'm hoping that reading the posts on this forum, and others, will help me better understand how these circuits work. I've repaired a number of pieces of electronic equipment by either simply finding bad solder joints, replacing bulging capacitors, or reading on forums, such as this one.

    As the circuits get more complicated, it's getting harder to just open up the case and find the problem, but it appears that many of these issues boil down to a few touchy parts and that's why Badcaps.net...
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