Question about Mitsubishi LT-3020 30 in. HD-Ready LCD Television

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Thank you vcdr for your solution. I did what you suggested and the problem presented itself. Could this be simply a poor connection of the cable into the jack or do you still think it is a cold solder? It actually appears to be a cable into the audio jack on Component 2.

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Re: COLOR PROBLEM WITH MITSUBISHI LT3020 - Mitsubishi LT-3020 30 in. HD-Ready LCD Television Flat Panel Televisions

You could try a new cable.

Posted on Jun 08, 2006

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My Sony Bravia KDL-55BX520 will not power on, there are no indicators lit up.

Sounds like SMPS section circuit has the fault. Check all the other voltages according to circuit diagram.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.

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Hi, Simply attaching the cable isn't always enough. Sometimes you actually have to tell the laptop to display via HDMI or DVI onto your external monitor or it will not output any signal.

Try pressing Windows Key+P, this will change your presentation settings in Windows (What screens you get a display on and how they are displayed). Cycle through to either "projector only" or "duplicate screens" and see if you get a display on your TV then.

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Any tricks to replacing the LVDS cable in Samsing LNS4051DX/XAA

Its easy but be sure the set is unplugged. The LVDS has little tabs that are on each side of the metal connection when you press in on the tabs the lvds cable slides right out of the Tcon and the other end does the same on the main board. To plug it back in press in the side tabs and then slide it squarely into the socket on the TCon and then release the pins when the connection is all the way in. 2_13_2013_1_58_03_pm.jpg

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I want to hook up a dvd and a vcr to this tv. It is a Vizio E3D470VX

Does it have two separate inputs? Then connect it to these. If it does not have, buy a manual switch that can take one output from three inputs, and can be selected by a sliding switch. Then connect the DVD and VCDR to its inputs, and connect the output to your TV. If the TV has S-Video, connect the four RCs from VCR to TV and connect the DVD to your TV in its AV in.

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Dark smudgy lines in screen

your set might have 2 issues: the one is fixable, the other is not. I'd start to inspect t-con board's ribbon cables, which connect the board to display itself. In many cases, due to overheating or moisture accumulating, those connections might get unstable, what result in those intermittent lines. T-con board itself might cause this. If you won't get lucky by just reconnecting t-con's ribbon cables. Replace t-con board. It's cheapest among all signal processing. If that's not an issue, the display itself at fault. Then, you know what to do: dispose TV properly or sell it for parts in whole at Craigslist. Good luck,

Jan 02, 2012 | Toshiba Flat Panel Televisions

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I have black horizontal lines (left to right) from about middle to bottom of screen and I want to know how to fix it. Sound and picture work...just those line remain. Model # P50H401

It looks like problem is originated near buffer board/s.
You can try to repair this but it is not recommended for untrained person.
If you remove back cover of your TV on the left hand side you will find ribbon cables that connected to narrow and long buffer board (or two boards) with one end while other end goes inside PDP (Plasma Display Panel). Poor connection could be present on any side of that ribbon cables. You can try to "play" with ones that are visible and see if it will clear the picture while TV is turned on. But this is not safe, there is about 200V running on some boards so you have to be extremely careful. If poor connection is on the other side of the cable - than issue is impossible to fix without replacing whole panel. And this is more expensive than just buy a new TV.
I would recommend let professional to take a look at it. Your health and life is not worth of any TV set out there.

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Television isnt working correctly

Are you changing the Video Input selector to the proper HDMI port? AKA the SOURCE button.
Couldn't decipher if you said that you've used another console with HDMI video on the Sharp Aquos already.

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This is typically caused by poor ground connections either at the cable input or inside the tuner itself. Check all external cable connections for good grounds. If those are good, then the tuner needs to be examined carefully for poor solder connections at the grounds.


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1 Answer

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Once you open up the unit, you should see a series of flat orage cables coming from the panel itself. These are the cables that can have poor connections. CAREFULLY remove them by releasing the connector "lock" and reseat them inside the connector. Re-lock the connector and try the set. If that fails, you should have the set examined as specialized equipment will be necessary to trace this problem.

Apr 30, 2008 | Flat Panel Televisions

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