Re: Vizio VW42lHDTV10A no pix, no sound, won't turn off
Do a search on this web site for VW32lHDTV10A or VX32lHDTV10A
or VW42lHDTV10A or VX42lHDTV10A
There is plenty of people with the very same problem, most of them have bad caps
on the power supply or main board.
questor42
Member
Last Activity: 04-26-2016, 10:14 PM
Joined: 05-29-2011
Location: up state NY
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Re: Vizio VW42LFHDTV10...Brother Mikes TV...
I looked on the web and found three sites right off the bat selling your board and in stock, All I did was type in 3642-0502-0150 on the dogpile.com search page.
Also the sub that I found for your board was 3642-0502-0395 with Serial number beginning with: LSPBYDJ
So there is a chance that the board you bought might not work for you.Leave a comment:
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Re: Vizio VW42L HDTV10A no picture or sound
I agree with PlainBill they are over priced, The ESR meter that I borrowed was a cap wizard it worked well but I had to do some repairs to it before using it, The battery came out and the buzzer was loose inside shorting out on the circuit board.
There is nothing high tech inside of it to justify the cost. I am building my own with all the same features as the cap wizard.
There are a lot of choices but the Blue ESR meter is a good choice and you can save some money by getting it in kit formLeave a comment:
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Re: Vizio VW42L HDTV10A no picture or sound
On a capacitance meter they can measure close to their correct values But still be bad.
It happened to me, a brand new cap was bad. I borrowed a ESR meter and tested all of the caps on the power section of the board that tested good with a cap meter and found 6 that were bad.
So the can look good and test good and still be bad.
Read article at [url]http://ludens.cl/Electron/esr/esr.html[/url]
for more info and how to build your own ESR meterRe: Vizio VW42L HDTV10A no picture o.../> <br /> OnLeave a comment:
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Re: Vizio VW42L HDTV10A no picture or sound
From what I have seen the VW42L HDTV10A and VX42L HDTV10A
mother boards do not have a U4 and it's not in the parts list either.Leave a comment:
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Re: Vizio VW42L HDTV10A no picture or sound
One more problem with the set that I did not know about till I exchanged my cable box for the HD version yesterday.
Everything works fine but the HDMI video output is all garbage on the screen so I need to replace more caps, All other video output modes work great.
What section of the board should I be looking at ? Just the area of the HDMI input connector or elsewhere on the board ?Leave a comment:
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Re: Vizio VW42L HDTV10A no picture or sound
U33 was replaced with a AMC1117
My soldering skills are fine, I was out of fine solder and had to use a thicker grade and the picture was taken before the extra solder was removed with solder wick.
Also It was worked on by someone else before I took it out of a free pile at a yard sale, it had 4 different Cap brands on it.
Set is fixed now it turns out that CE27 that had just been replaced was bad.
ESR was over 4 ohms, Once it was replaced U33 was @ 3.31 volts
So less then...Leave a comment:
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Re: Vizio VW42L HDTV10A no picture or sound
As of yesterday I had borrowed a esr meter and replaced all the caps I did not like with higher esr values than new caps and it still is not showing a picture or sound.
Can someone help me with this please.
ThanksLeave a comment:
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Re: Vizio VW42L HDTV10A no picture or sound
It's too bad that the power supply is not the problem, it would then be a cheap & easy fix
mine has all the correct voltages coming out.
If I could find the correct mail board # 3642-0222-0150 4a or 3642-0132-0395
I would just buy it at this point.Leave a comment:
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Vizio VW42L HDTV10A no picture or sound
My Vizio Vw42L HDTV10A Turns on with the power button, the light changes from amber to white and the back light comes on, but there is no sound or video.
Went through all the Vizio posts for repair info.
Checked all the DC-DC converter voltages and the power supply input on the main board.
Fuses on main board, power supply and each fuse on inverter boards are good.
All measurements from circuit board ground.
Replaced u7, u8, u9 and u33
Replaced all the caps in the regulator section, I am waiting for some
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Re: Vizio VW42lHDTV10A no pix, no sound, won't turn off
Thanks for the help it's the right one
but does not have the Main Board Circuit Diagram
It's Listed in the Appendix but the Appendix is missing from the manual.
I am a older disabled electronics tech
So I was trained to follow circuit diagram's with test points and following the circuit to find the problem, So I am going to have a problem fixing this thing.
Thanks againLeave a comment:
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Re: Vizio VW42lHDTV10A no pix, no sound, won't turn off
On your Vizio VW42lHDTV10A where did you find it at ?
I have the same set as you but can't find the correct
service manual. I have been looking for three days
with no luck, can you point me in the right direction?
Thanks...Leave a comment:
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