hello to all i have a 50 vizio hdtv 20a no picture but sound works black screen looking for some help to troubleshoot thanks
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vizio 50 hdtv 20a have sound no picture
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Re: vizio 50 hdtv 20a have sound no picture
What is the exact model number of the TV? There is no Vizio 50 HDTV 20A; there are Vizio VP50 HDTV20A and P50 HDTV20A and they are plasma TVs.
Odds are you've got a shorted buffer(s) and blown Y-Sustain.
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.
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Re: vizio 50 hdtv 20a have sound no picture
I second bill's motion. y buffers and maybe y drive.
check out my previous post.https://www.badcaps.net/forum/showth...ht=vp50hdtv20a
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Re: vizio 50 hdtv 20a have sound no picture
I WOULD BUT IT,S HARD TO FIGURE OUT WHAT IS WHAT. i am a hands on guy but this stuff is all new to me the model is a s50hw-ydo2 i could not find the y sustain or the buffers not sure of the location i pulled some numbers off some of the boards this is what i have seen lj92 01500a / lj44 00132b / lj41 o5121a and 05122a / lj41 05170a and several other numbers any help with part numbers would be grateful sorry for bugging you guys .
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Re: vizio 50 hdtv 20a have sound no picture
You can usually plug those part numbers in Google to identify them...
lj44 00132b - power supply
lj92 01500a - z sus
lj41 05121a - y buffer
lj41 05122a - lower y buffer
lj41 05170a - interface board
Here's a general troubleshooting procedure:
Unplug TV, wait 5 minutes. Disconnect power cable from Y-Sus. Plug in TV and turn on. If it turns off by itself, the Y-Sus is not the problem. Unplug TV, wait 5 minutes, reconnect the power cable to the Y-Sus, disconnect the power cable from the Z-sus. Plug in TV and turn on. If it turns off by itself, it's not the Z-sus. Unplug TV. Wait 5 minutes, reconnect power cable to the Z-sus. Disconnect power cable to the X-card. Plug in TV and turn on. If it turns off by itself, replace the power supply.Last edited by daimoku; 04-04-2011, 10:37 AM.
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Re: vizio 50 hdtv 20a have sound no picture
Originally posted by gregory lathrop View Posti need a diagram of the set i dont know which one is the inverter or the other componets
PlainBillFor a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.
Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.
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Re: vizio 50 hdtv 20a have sound no picture
hey guys took pictures but for some reason they wont upload i will try tomorrow states security key i even when to a different browser still no go i know where the y sustain and buffers are now i have to figure out how to test then i dont want to start swaping in new partsLast edited by gregory lathrop; 04-04-2011, 11:51 PM.
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Re: vizio 50 hdtv 20a have sound no picture
ok just did a couple of tests on the vp50hdtv20a disconnected the lj41 04217a y sus and turned the tv on it stayed on but part lj41 0422a had 3 lights one on all the time one came on for 5 seconds or so then went out and a thrid just just kept blinking shut off power waited 5 minutes connected y sus back disconnected z sus plugged vp50 back in tuned on same with the lights then the burning smell just enough it was coming from the lj41 04127a so what be be the next step to replace the y sus and both buffers or just the y sus and where can i find the quality parts at a fair price i dont want used from craigslist or ebay any ideas again thank you all for your help. matt
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Re: vizio 50 hdtv 20a have sound no picture
your best bet is ebay for instance http://cgi.ebay.com/3Pcs-LJ41-04217A...item25627e0df2
remember new 50" plasma's are $500.00
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Re: vizio 50 hdtv 20a have sound no picture
there is firm here in calif they take your board and repair or exchange it for a working board and they test both buffers for free the cost is $89.00 for a refurbished y susLast edited by gregory lathrop; 04-05-2011, 04:25 PM.
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