vizio e37ovl turns on and back off

[yankys]

Hi, im new to this form i have a 37" vizio only a year old that was working great untill yesterday. my son turned it off and when he turned it back on it will now only go to the vizio logo on the screen and back off. any help in this problem would be greatly appreciated. Thanks Tom

[selldoor]

Re: vizio e37ovl turns on and back off

Hi Tom
See "Search" above - Type vizio into the search and read some/all of the previous posts. This will give you some idea of the information/pics /details of your problem, your abilities and your tools that you will have to provide
If you then return and make a second post stating what you have done/tried someone may be able to assist you. You may not even have to, you may be able to use the information you glean to fix it without assistance.

As a first idea you could try and find if there is a factory reset for this tv
on line and try that, if you have not already.
Try a hard reset Unplug the tv and anything connected to it and leave for an hour
then try it again.

[yankys]

Re: vizio e37ovl turns on and back off

I"ve read other post and im not seeing anything in regards to this problem. i did the hard reset and tryed factory reset still same thing turns on goes to vizo logo on screen and back off, i did look at the power supply and main board but did not see anything obvious like burnt spots, or bubbled caps if some has another way to trouble check this please let me know thanks Tom.

[PlainBill]

Re: vizio e37ovl turns on and back off

I"ve read other post and im not seeing anything in regards to this problem. i did the hard reset and tryed factory reset still same thing turns on goes to vizo logo on screen and back off, i did look at the power supply and main board but did not see anything obvious like burnt spots, or bubbled caps if some has another way to trouble check this please let me know thanks Tom.

Check the PS_ON line, check the power supply outputs, check the voltage across the large cap on the power supply.

PlainBill

[yankys]

Re: vizio e37ovl turns on and back off

is the voltage dc or ac on this cap what should it show, and do i ground my black prob to the frame or both leads to the cap.

[rpgruss]

Re: vizio e37ovl turns on and back off

It is DC, put your negative lead on the negative side of the capacitor, and the positive to positive. Be extremely careful, if the cap is working properly there will be approximately 1.4x line voltage on the capacitor, so 168 volts at least!

[yankys]

Re: vizio e37ovl turns on and back off

It shows 164.7 at the larg capacitor on the power board.

[yankys]

Re: vizio e37ovl turns on and back off

here a pic of the power board.

[yankys]

Re: vizio e37ovl turns on and back off

with it showing 164.7 will this cause the tv to turn on to logo screen and off meaning i need to replace this capacitor?

[rpgruss]

Re: vizio e37ovl turns on and back off

I would say your main cap is good. If my past experience with Vizio is any indication, you have a fault on the main board. I will defer to someone who is more of an expert on these, Vizio is very tight fisted about their service manuals. The last time I fixed a Vizio I ended up just buying a new main board which fixed it.

[yankys]

Re: vizio e37ovl turns on and back off

thanks for the info with this being said is there any way to test the main board or just replace it.

[yankys]

Re: vizio e37ovl turns on and back off

Hi, every one im still trying to fix this tv is there a way to confirm if the power supply is bad i checked the large cap and it read 164. but im not shur where to go from here, i have read other post but being new to this i have'nt ben able this diagnose this yet if some one could point me in the right direction would be great Thanks Tom

[PlainBill]

Re: vizio e37ovl turns on and back off

If you really want help you are going to have to give us something to work with.

1. We will need two pictures, each close to but not over 2000 pixels on a side. The first should be of the top side of the power supply, the second of the bottom side. To be adaquate we should be able to read component identifiers. To be exceptional we would be able to read IC part numbers.

2. AAA third picture showing the printing near the power supply output connector would be helpful.

3. IPretend you are writing for an English Composition class. If it is difficult to read your post, I skip to the next thread.

PlainBill

[yankys]

Re: vizio e37ovl turns on and back off

ok ill get some picture of it tomorrow thank you. Tom

[retiredcaps]

Re: vizio e37ovl turns on and back off

If it is difficult to read your post, I skip to the next thread.

Regulars here reply with punctuation, periods, and paragraphs. We try to be as clear as possible in our explanations and give detailed responses. If you are not going to do the same, we move onto the next thread.

Note PlainBill asked you to check 3 things in post #4 and you only checked 1 of them.

[selldoor]

Re: vizio e37ovl turns on and back off

I dont know much, but I have already given up - did not seem to do the basics as I suggested other than a reset. When I could barely read any numbers on the board I went to do a bit of decorating. It must be bad!!

[yankys]

Re: vizio e37ovl turns on and back off

Thank you everyone for trying to help me. I will do the trouble shooting and get the 3 pictures uploaded very soon. Again Thanks very much everyone.

[selldoor]

Re: vizio e37ovl turns on and back off

Hopefully this time they will be pictures of YOUR boards as it is, it looks like 16 people have wasted their time trying to find fault with this

http://www.ebay.com/itm/Vizio-E370VL...item3cc0dd2713.

Hopefully some of them will be more forgiving than I.

[yankys]

Re: vizio e37ovl turns on and back off

I am very sorry my intension was not to mislead anybody. I was unable to figure out how to upload my actual pictures; therefore I used a picture of one like mine. I was just showing everyone what my power supply looks like. Since then I have figured out how to upload the pictures and will be posting the three pictures that were asked for along with the readings. Again I'm sorry and thank you all for your help, Tom

[yankys]

Re: vizio e37ovl turns on and back off

The readings are as followed (as asked for in post 4)....
Ps_on 0.3 while off
Ps_on 2.98 while on

24V pin 5.36 while off
24V pin none while on

450V/100uf capacitor 164.3 while off
450V/100uf capacitor 393 while on

12V pin 0V while off
12V pin 12V while on

Here are some picture of the top, bottom and power output on board. Any help would be greatly appreciated.

Thanks again,
Tom