Re: Vizio VX42L Pop then Screen blurred - LCD Problem
I will update the list into a text format. I couldn't paste the table into the replies is why I uploaded the pictures.
Are you saying the Nichicon HE, PW, or PM, UCC KY are the ones to purchase as replacements along with Panasonic FC and FM's?...
stauffercaps
Member
Last Activity: 12-27-2015, 04:22 PM
Joined: 09-09-2010
Location:
-
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
Listing of the Caps on the power supply and the inverter boards....Leave a comment:
-
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
Sounds like the noise is coming near these "transformers"? Hard to tell which one. See Picture!
The TV has been on all day today,
Still not convinced it is fixed completely since I had a hard time getting it to reproduce the issue this last time I disassembled the TV. I'll let it cook for awhile longer to see. Thanks....
Leave a comment:
-
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
Ok, I got the 4 caps on the inverter boards replaced. The replacements are a little longer than the originals so they don't fit in the cutouts on the PCB as well. I hope it will be alright. I have the tv all assembled and running so we will see how long it will run without messing up.
Again, sorry about the quality of the pictures (iphone) but you can get the idea.
Also, I hear a slight "buzzing" or "humming" from the power supply board. Is that normal? You can't really hear it...Leave a comment:
-
Re: Mitsibushi V51LCD Monitor Screen Tinted Red
I was not familiar with that phrase so I google'd it....
Occam's Razor: The principle is popularly interpreted as "the simplest explanation is usually the correct one".
I like it!
Thanks again everyone!...Leave a comment:
-
Re: Mitsibushi V51LCD Monitor Screen Tinted Red
Ok, so I performed the factory reset from within the OSD. You could see the screen change from the pronounced red to a yellowish tint. After picking up the LCD to move it from the desk I noticed that when I moved the end of the VGA cable the screen would tint blue, then yellow, green, and normal. I swapped the cable and and monitor looks like back to normal.
I never noticed the cable causing the screen to move to a red tint.... It was just always tinted red. Not really sure if the factory reset was an issue or just a...Leave a comment:
-
Re: Mitsibushi V51LCD Monitor Screen Tinted Red
Awesome, Any idea how to access the service menu to do a factory reset? I can access the regular OSD fine, can I get to it from there? Thanks.Leave a comment:
-
Re: Mitsibushi V51LCD Monitor Screen Tinted Red
Pictures of the insides, sorry in advance. (pics from an iPhone)...Leave a comment:
-
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
I have not replaced any caps but did purchase the four caps from digi-key for the inverter boards. I have no way to test caps either so I guess I might be ordering a bunch of replacement caps and blasting these PCB's with some caps.
Good catch on the other thread going for the RCA with no picture. It has the same inverters and LCD controller as my Vizio does.
I cant say thanks enough for all the suggestions......Leave a comment:
-
Re: Mitsibushi V51LCD Monitor Screen Tinted Red
Are inexpensive replacement CCFL's likely to be found? What supplier would you suggest?
Thanks for your response retiredcaps!Leave a comment:
-
Re: Mitsibushi V51LCD Monitor Screen Tinted Red
Oh shoot, just realized that I posted this under the wrong section. Sorry!
I tried to see if I could move it or delete it but didn't see where I could.Leave a comment:
-
Mitsibushi V51LCD Monitor Screen Tinted Red
I have a V51LCD monitor that turns on and works but the screen show the content but with a heavy RED tint. It can not be adjusted out using the OSD controls. Interesting enough the Menu/OSD shows up normally without the red tint.
Any ideas what could be causing this? Will post some pictures when I get home. -
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
Before tearing down the TV again I recreated the problem standing upright which it did. I layed it facedown on the table to tear apart and tested again. The problem repeated two times so I thought lets tear down.
Sadly once I got everything torn apart I could not get the TV to mess up. Urgghh. So I thought maybe it when the back cover was on it trapped more heat inside causing a fault to occur. Couldn't get it to mess up. BUMMER! Next i thought maybe it would mess up in the upright position so I leaned the tv with...Leave a comment:
-
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
Quasar and retiredcaps-
Thanks for the helpful suggestions, I will do a deeper inspection hopefully tonight and see what I can find. I will update you on my findings.Leave a comment:
-
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
I guess I will proceed with replacing the Master and Slave Inverter Caps just to try something since another poster had bad caps on these boards.
Ordered 4 replacement caps from DigiKey on Monday and got them yesterday just 4 days from ordering to my door is pretty quick.
Uploaded a pic of the Master Inverter board to show the caps I plan on swapping. More to come. Thanks for the direction from those that have replied so far....Leave a comment:
-
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
Thanks for the responses. I did read the other posts that had bad caps on the slave and master invertor boards and the C241 Cap that was bulging on one members power supply. None of my caps appear to look defective on any of the boards, which from what I have read in this forum doesn't really mean that they are good since they do not look leaky or bulging.
Would you recommend replacing all the caps? Should I start one board at a time? Is a cap what is most likely to be making the "popping" sound? ...Leave a comment:
-
Re: Vizio VX42L Pop then Screen blurred - LCD Problem
I uploaded some images of the components....Leave a comment:
-
Vizio VX42L Pop then Screen blurred - LCD Problem
I picked up a Vizio VX42L LCD TV that was not working for nothing. It would work fine for a few minutes then you would hear a POP and the picture would get all blurred. Once this happens the TV power buttons on the side would not respond nor would any of the input, volume, or channel buttons. Removing the power cord is the only way to get it back to normal function. It will only work for less than a minute before popping again.
I removed the back cover to check the power supply and invertor boards for visible defective caps but did not find any that visually looked bad. When the...
No activity results to display
Leave a comment: