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Old 03-27-2013, 09:42 PM   #1
gorayomd
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Default Vizio vx20l - no picture no sound powers on, cannot turn off

I've seen similar type posts for similar issues/models, but not sure if all the recommendations would apply. I've checked out the main fuses and the regulators and they all seem to be ok. Any other tips or next things I should check?

Thanks in advance and much appreciated
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Old 03-27-2013, 09:46 PM   #2
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Default Re: Vizio vx20l - no picture no sound powers on, cannot turn off

Check caps maybe... post pictures so we can inform you better what to check. I would say to check the inverter board but your tv might not have one. From the pictures...oh...wait... there are none.
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Old 03-27-2013, 09:46 PM   #3
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Default Re: Vizio vx20l - no picture no sound powers on, cannot turn off

Please post good clear pictures of all the boards using attachment function so we can see what we are dealing with.
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Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956

Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999

Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl

Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/

TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809
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Old 03-27-2013, 10:54 PM   #4
gorayomd
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Default Re: Vizio vx20l - no picture no sound powers on, cannot turn off

Sorry about the pics in advance, the best I can do with my camera phone.

Let me know if you need better pics of anything.
Attached Images
File Type: jpg IMG_20130328_003852.jpg (1.86 MB, 12 views)
File Type: jpg IMG_20130328_003903.jpg (1.99 MB, 9 views)
File Type: jpg IMG_20130328_003915.jpg (2.03 MB, 9 views)
File Type: jpg IMG_20130328_003928.jpg (1.97 MB, 7 views)
File Type: jpg IMG_20130328_003941.jpg (1.75 MB, 8 views)
File Type: jpg IMG_20130328_003950.jpg (1.67 MB, 8 views)
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Old 03-28-2013, 02:27 PM   #5
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Default Re: Vizio vx20l - no picture no sound powers on, cannot turn off

Does anyone have the specs or should I list the vin and vout as well?
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Old 03-28-2013, 02:32 PM   #6
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Default Re: Vizio vx20l - no picture no sound powers on, cannot turn off

For each regulator list all three pins (the fourth tab pin is the same as the second pin) plus the part # on the device.
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