Vizio VX42L Repair

Received this TV as repair. Issue when taken in no power wouldn’t turn on by remote or by hard panel button. “No picture or Sound”

Power cord was good and fuse was okay as well.
First place TV on a flat surface with a blanket underneath to protect screen from unwanted scratches. Also be sure there isn’t any screws or small objects on the surface your laying the TV down on. Missing a small screw or object can and most likely will result in cracking the LCD panel once this is done may as well toss the TV and/or pay customer for your mistake. The cost for panel is much more than just buying a new TV set. Especially if your repairing a 42″ or smaller.

Remove the back off television first remove the 8-screws that hold the stand on TV. Then there is about 20 more screws on back of the television after removing all of them use a plastic card or any non metal pry tool to pop the back off.  It’s small snap latches that hold back on after removing the screws.

This tool is perfect for popping the lock rivets. They are sold online can be used on tablets and cell phones as well. Cost $5 and will not damage the plastic around the TV set.
Once back is off the Power supply is in plain sight. Be sure to label the wires on right side it’s important that they be plugged back into correct slots.
Vizio vx42l PSU back off

Normally I would do some testing but this issue was heard. When turning on the TV could hear the PSU clicking. Which means the PSU is bad there are Repair Kits for Power Board and Inverter Boards but this cost is right at $30. May as well shop around and just buy the whole PSU which can start at $40 and go up to $65.

Old PSU looks nice but it is bad:-(
While sure you can save $10-$20 by purchasing the kit but remember more time means more labor costs so spending a bit more on whole PSU may save you from charging customer a few more hours labor. In the end could save or break even either way both you and the customer benefit.

Always make sure your grounded and be careful these power supply’s hold enough power to knock you to the coffin. If you don’t know much about these things get help or just pay someone to do it for you.

Finished product

Keep looking I may be taking in a Mitsubishi 60″ DLP HDTV. From what I was described as issue was white specks or stars. These can also be black as well. Means the mirrors are sticking and will require chip replacement. When I take it in I will go ahead and post details of issue and cost & repair.

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