I have an interesting on. I had a vertical line issue. I just recieved a new TCon board, hooked it up and when i turned it on the backlights never kicked on. I unplugged the power from the tcon board and tried again and the backlights come on but nothing else, as expected. Here is the part that is confusing me, I then plugged the tcon back in, but unplugged the ribbon from the inverter to the tcon board. Fired up the tv and everything seems to work perfect. Should it be working fine without the small cable from inverter to tcon board hooked up? Will it hurt anything by running it this way? Now a couple of days later i get a little bit of timing issues at startup, but after a few mins everything is ok
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Re: Vizio xvt473sv tcon questoin
That cable is probably the sync cable for keeping the inverter synchronised with the t-con, it blanks the backlight when the t-con is updating the screen which creates the illusion of a faster screen update. It should be plugged in though it may work without it...Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Vizio xvt473sv tcon questoin
Why would it cut off the inverter when the cable is connected? The blue light on the inverter dosent even blink. Actually the tv tries booting up, then after a minute of no backlight the tv shuts back off. Maybe its a bad ribbon?Comment
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Re: Vizio xvt473sv tcon questoin
Possibly -- or maybe the t-con board is bad?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Vizio xvt473sv tcon questoin
its a new board. Before I put this board in I put this board in I had the vertical line problem and the new board seemed to have solved that part.Comment
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Re: Vizio xvt473sv tcon questoin
The board could work in one way and be faulty in another way, if you picked up the board from eBay or another internet site, they are mostly reclaimed parts (from damaged TVs) that are rarely tested.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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I just got this tv today and it appeared to have no backlight on. After taking off the rear cover and checking again in the dark I can see that MAYBE one quadrant is lit.. But still it's quite dim. I was going to check the LEDs with my tester, and I found LED 1 and LED 2 + pins on the wire from the inverter, but I couldn't identify a ground. Nonetheless I tried using a mounting screw on the inverter board and also the chassis as ground but regardless my tester reads 300 which is what it reads when there is no voltage draw.
I don't know how exactly to test the inverter itself. Is it... -
Hi,
I have a VIZIO E70-E3.
Symptoms: Black screen, no picture, but LED backlights are working.
I probed the power board and voltages are as listed on the board.
Main board appears fine, too.
I believe the problem is either a bad T-CON board, or connection to LCD, or bad LCD.
There are two separate ribbon cables feeding the LCD.
If both are connected, the screen is black.
If only the ribbon cable that feeds the right side of the screen (when viewed from the front) is disconnected, the left side of the screen shows picture and... -
Just bought this for 10 bucks yesterday hoping to fix it. The guy said water dropped inside from a dehumidifier hose and it started showing black and white vertical bars then went blank. When I got it home and turned it on it came on fine and displayed correctly but I was noticing faint vertical bars in the image. After a little bit I turned it off and back on and it was a black screen again. I opened it up to check for water damage and corrosion but didn't find anything of the sort. I cleaned the ribbons anyway and reconnected them but still got a blank screen. If I disconnect the right side...
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Got this TV free. Guy said it tries to turn on and doesn't. I haven't seen this specific issue before but shown in video. Any way to test the screen to rule it out on these Vizio? Or anyone seen this issue before?
Any help appreciated
https://youtu.be/tPeV2Q7TXIQ?feature=shared
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