Re: Visio VX32L-HDTV10A - no picture
Thanks for all the help. When I took off the metal cover under the power supply and main board to expose the T-CON board it became obvious that the cable running from the main board to the T-CON board was not fully plugged in to the T-CON board. I replugged it and now the set works great. So I surmise the U33 repair was the original culprit.
Many thanks to all of you who took your time to help me out.
Acorlin
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Last Activity: 02-25-2015, 04:13 PM
Joined: 08-16-2010
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Re: Visio VX32L-HDTV10A - no picture
I have not checked T-Con board at all. Will check tonight.Leave a comment:
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Re: Visio VX32L-HDTV10A - no picture
I will post some photos tonight. The back lights are turning on and off. If the BL_ON (Inv_on) signal was bad would they still turn on?Leave a comment:
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Re: Visio VX32L-HDTV10A - no picture
It has a dark screen not blue.Leave a comment:
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Re: Visio VX32L-HDTV10A - no picture
I have not checked for sound. The back lights do go on and off as they should when I push the side on-off button.Leave a comment:
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Re: Visio VX32L-HDTV10A - no picture
I should have been more clear in answering your question. U33 was bad causing two other 1117's to malfunction. U7 being one of them. I replaced U33 and all the voltages went to spec. The output of U7 is now 1.25V. No change in operation after the replacement of U33.Leave a comment:
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Re: Visio VX32L-HDTV10A - no picture
All of the 1117's now have voltages that are within spec including U7. What is puzzling to me is that I am not having the usual trouble I read about in the forum. My set will turn off and on. It does have the usual problem where there is no sound and the back lights do light up. The Visio logo does turn White.
I appreciate you taking the time to help me out.
Alan
AA6DWLeave a comment:
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Re: Visio VX32L-HDTV10A - no picture
Tom--
thanks for the answer. On the 32" set I have checked all the DC-DC converters and the outputs are to spec yet the set will still not turn on. the Visio logo turns white and I am able to turn it on and off with the side button. On Ebay someone is selling a kit of 4 parts that are supposed to "cure" this problem. What 4 parts (other than the DC -DC converter chips) do you think they are? I have checked most of the caps and they seem fine.Leave a comment:
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Re: Visio VX32L-HDTV10A - no picture
I have an unrelated question on this same model Visio. Can a main board from a VX37LHDTV10A numbered Vizio 0171-2272-2174 3637-0052-0395 be used in a Visio 32" set? The 32" board is a 0171-2272-2174 3632-0202-0150 .The 32" set had a bad U33 but now that I have good voltage it still will not turn on. The Visio logo on the front does turn white. I have a good 37" board and just want to know if that can be used. Thanks--Leave a comment:
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Re: YET ANIOTHER VIZO Vizio VX32L turns on with backlight, no video or sound
Found the Vizio VX32L schematics and parts break out on this page. If anyone can find an easier way to view this information ie. PDF file please let me know.
[url]http://www.scribd.com/doc/94726027/Vizio-Vx32l-Hdtv-Service-Manual[/url]Re: YET ANIOTHER VIZO Vizio VX32L tu...me know.<br />Leave a comment:
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Re: HP 1755 Benq Inverter Board
I also have a problem with the board pictured in--
[url]https://www.badcaps.net/forum/attachment.php?attachmentid=6511[/url]
On the reverse side of this board is an SMD part. 8 legs marked "Q-812"
It is marked as follows.
4431
AM
L53C
To the left of the "A" on the second line is what looks like a scroll
and to the right of the "M" is a Delta symbol (triangle)
Can anyone tell me what this part is? There are two of them on the...Last edited by Acorlin; 05-07-2012, 11:35 AM.Leave a comment:
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