Tim Funk: What if you don't see the vizio light at all (stand by or on) it's it still
the power supply board
Sunlight Paladin: the Whole right side of my screen Goes really dark and distorted and i have
to smack it or shake it to make it stop .
Juan Castacan: I have the same model but I don't have any response from the on/off touch
pad, I have the orange light on but no power Is getting to the touch pad
and therefore I can't turn it on with the remote either. anyone can help
jarvis agulto: I have a blurry image and static, then it gets clear then again gets
blurry/static. whats the problem and how can I fix this? please let me know
Adam Spinelli: +Grants Pass TV Repair I've got the same model, but my problem is, the
screen comes on for a few seconds and then shuts off. vizio logo remains
white. Once I press any of the menu buttons, they light up for about a
second and then turn off, followed by the logo turning orange. Does that
sound like a Mainboard issue, or a power board issue? I don't have the
tools or the know how to test the boards, but i'm pretty confident I can
just swap them out. I would just like to know what I should buy before I go
wasting money. This would make an awesome christmas present for my little
brother. Help me out and I'll buy you a beer! (if you take paypal.)
Dan Daugherty: i have the VW47L version, given to me by a friend who didn't want to take
the time to have it repaired. it is very similar to the GV model you are
showing in this video. He said he heard a pop and it stopped working, he
did try and replace the main board but that did not help. All fuses appear
good, when I plug it in, the VIZIO does turn hello, I do not hear any
relays when I press the power button on the side and nothing changes. I do
have the 5v standby but no other voltages coming out of the power supply.
I"m not sure if I should have the 12 / 24 volts out since I don't hear the
relay or if there is some type of power check on the board that if one is
missing, it won't try and turn on? Yours in the video does have the 24volts
going to the inverter boards but you did hear the relay. Bad power board?
hoopfan71: @hoopfan71 No such luck - I ended up having to replace the main board.
domincan231: Were you able to find a fix? I have the same issue
mrbrain80: The fuse on the power supply/board was test and is good.
Brian Doyle: I have the same model tv with a 20A at the end rather than the 10A you show
on the video. Last night the screen went to about half brightness and a
buzzing sound started in the rear of the tv(almost sounds like a relay
chattering) I have read a few posts and all seem to lean to the main board.
Any suggestions on how to check?
gubni: @GrantsPassTVRepairs Yep, my board is 364700620150. Still GV47L but minor
difference. My problem is I get back light but no video.
Grants Pass TV Repair: @gubni I found 3 of the AMC1117 regulators on this board but nothing with
the location characters of U33. Two of them were under the location
characters of U5 and U18 and the third didn't have any location number on
the board so I'm wondering where you found a the U33? I looked near the
power in connector and couldn't find it.
mrbrain80: I had this problem, I thought it was the power supply but ended up being
the main board. found the main board part locally for $50. Not really worth
fixing since it could happen again..
da9ball: I had the black screen of death and found your video to be helpful. I too
tested some of the small Littelfuse (LF) micro fuses at F1 to F3 locations
and found the the fuse at F3 to be faulty. Found a LF fuse on Ebay that
matched the service manual's description and piggy backed it on the old
fuse and it seemed to do the trick. Thanks for video though it gave me good
insight on what I would be looking at when I opened it. A good tear down
instruction video would be cool to compliment this one.
Grants Pass TV Repair: The main board is difficult to test other than to look for missing voltages
on various locations as marked on the board or schematic, but when you
mention hearing a buzzing noise and a picture with only half brightness I
would think your inverter board may have a problem rather than it being a
main board problem.
Maxxarcade: Very similar to the situation I have with the Philips/Magnavox set I'm
working on. Found a board for about $150 on Ebay, but I'm not sure the
customer will go for it. Also bringing in an Akai LCD/DVD player combo this
week, and I hope to make a video about that once I dig into it.
Grants Pass TV Repair: @gubni I think you must be describing a different main board for Vizio. On
my Vizio TV main board part number is 364700120150 (5A) and the only part
with a U33 location number next to it is a small 16 pin IC with the part
number P1503257QE, but no AMC1117. mine does have 3 AMC1117 adjustable
regulators but they are in completely different locations.
Grants Pass TV Repair: Yes but in this case I replaced the whole main board. Check the micro fuses
on the main board first. Sometimes they go bad.
yosimar urrutia: I have the same exact TV with the exact same problem. Do you have a shop I
can stop by?
Grants Pass TV Repair: Only tips I can give you are in this video. In this case it was the main
board that went bad.
foggyrider: Thanks so much for this video. My 4 year old GV47L had the exact same
symptons. I followed what you did in the video, I had good voltage at the
inverters, so I ordered a main board ($180) and it fix it!
hoopfan71: @THEtechknight I have a GV42L with the same symptoms - the original owner
told me the main board is faulty per a tech. Hopefully I can fix it cheaply
at the component level.
Kells Saridjo: I need to replace m vizio main board. 3642-0312-0150 (5A). I found one on
ebay. everything looks the same. only that's a 3642-0212-0150 (5A) Will it
Grants Pass TV Repair: Norcal715 has a couple videos where he shows people how to repair a common
problem on the Vizio mainboards. and the part is 65 cents. Look him up on
gubni: I've fixed a few of these now. It always seems to the the 1117 regulator on
Vizio TVs but occasionally in a different spot. Check voltage on that
middle pin and you will find the bad one.
gubni: The main problem with these is U33 near the power in on the motherboard.
When turned on this should have 5v on the top leg and 3.3 in the middle.
The main problem is the middle voltage will be close to 2v. Replace it with
AMC1117. Google for a supplier or try electronica-usa
N0JRJ's Ham Stew: Glad to see another video from you. Its been a while. Hope everything is
Tony Florida: Thanks 1 million for your share.
Grants Pass TV Repair: Yes you can. My shop is at 938 SW 6th street. About one block past 711 on
the right. I'm generally in between 10:30 and 5:30 unless I'm doing a
service home service call.
Grants Pass TV Repair: Sorry but I don't have a clue.
mrbrain80: Hi I have a vizio gv42l. The vizio logo does not come on. I though it could
be the power supply board but the capacitor looks good. Any ideas? Thanks
Edison Restrepo: hello dear friend first wanted to thank him for his great contribution to
these videos and who have helped me a lot. I also wanted to ask a question
in reference to an HDTV PDP42 * 3200 I have. the problem is that when I
turn on the tv the sound comes out fine but as I get only image in red and
tried to balance the colors but gives no result .. PLEASE IF YOU CAN HELP
ME AND THANK YOU FOR YOUR GREAT HELP ...
Manuel Graciano: Hello I have a vizio 320vl and I have an issue with it. It turns on,
however, on the display it shows the logo "VIZIO" but very dark n dim .
What do u think it can be?
Grants Pass TV Repair: I repaired this TV by replacing the main board not the inverter board. If
you suspect your inverter board is bad you need to test the transformers
and mosfets to see if they are shorted. You might start by testing the
micro fuses on the inverter boards and go from there.
Dwayne Carey: amber light, no click??? What to do?
abosman1: This video was very informative video with a very good sus path. Thanks for
sharing you save me time and money
THEtechknight: Actually, these VIZIO boards are KNOWN for this. Orange to white light, but
nothing happens. There is a low voltage dropout regulator that fails and
must be replaced. but ill be DAMNED if i can remember where it was. lol.
stephanie33069: help, I have this same TV, and got the "pop of death" from what i hear its
called. heard a pop and the screen went blank. vizio logo still on but
power wont turn off with remote or power on the tv. if i unplug it goes off
and i can turn it back on by remote ot panel on tv. still no sound or pic,
Im see blogs its because of blown capacitors that are easy to replace. I
see the power board but no capacitors, except maybe under the metal
housings on the board. any ideas on how to fix this
Gary Revuelto: I have a vizio VW32L HDTV20A. Im try to fix problem unit does not come on.
I have a orange vizio light does not go from orange to white. I suspect the
power board, I hear no click on power board when power button is pressed,
also I only have 5volts DC on the output side of the board no 12v or
24v.Not sure if the control voltage for the power board comes from the main
board then to the power button then to a relay on the power board to supply
the missing voltage.Any input would be appreciated, l
Jubie Ruiz: I had the same problem and found a board for $60 on ebay and it worked like
a charm. Thanks alot.
Nelson Chua: When all else fails.....SHOTGUN (replace the whole board) it! B^)
Martino R: hey i got the same tv 10A and I have the same problem has @trevabbie that
screen went to about half brightness and a buzzing sound started in the
rear of the tv. and Im looking on ebay for inverter board but i see 2
different kinds one that say slave inverter board and the other one that
just only say inverter board and they look different. I want to know how I
know which on is the right one before i purchase it online?