Question about Mitsubishi VS-50607 50" Rear Projection Television

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Mitsibishi 50707 one day the tv just started getting horizontal lines and seemed to be rolling you could somewhat see a picture then after some time about 1/2 the screen would have a compressed picture the other half was black then finally a full natural one, then back to the lines etc. sometimes it would shut off as soon as i turned it on, now it never clears up, please help

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Re: mitsibishi 50707

This set will have componet inputs in the back (red blue green) if your dvd is progressive scan then we need to hook it up here using the red blue green jacks on the dvd and hook them to the tv.these lines should clear up using these inputs. if they do i might have a idea of your problem.
let me know?

  • Have you paid your bill lately? Most cable companies will interrupt your cable box if you are 2 months past due.
  • If and when your cable tv goes completely out, most likely it is an outage and will clear up spontaneously on it's own. To generate an outage and have the operators tech's come out to investigate, report all outages to your cable operators immediately. They appreciate the report.
  • Most cable TV problems, and I say 80%, can be solved by the subscriber by checking the obvious like coax lines, for no picture on screen and have a box is the TV set itself set to channel 03? Have you installed splitters/moved equipment? Have you a High Def TV and box ?? Make certain that you have the television set to the correct INPUT by using your TELEVISION maker's remote to change from AV1..AV2..VIDEO 1 etc through the settings until you get a cable picture on screen. If your on screen displays don't show on your TV. you either have the TV set on the "wrong" input or that your cable box is not even powered on. Like I said, check the obvious first.
    • Motorola boxes that read 888 are dead and need to be replaced. Do not waste your time to call the cable company, just swap it out for a new one!

Posted on Nov 19, 2007

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Re: mitsibishi 50707

Replace vertical output IC and check capacitors in vertical
power supply....requires chassis pull and above average skill....

Posted on Nov 17, 2007

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TV was working fine, moved to new home and the problem began. Picture rolls to the right, picture is fuzzy and will clear up somewhat at times. The picture will stop rolling at times also,but may be a half...

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Mitsubishi TV had horizontal lines across the screen and rolls up

ONE: Yes, the speaker mounted close/near to the set can be a cause of mischief; please move it further away and see if that helps clear up the problem. But, you must keep it away for several days before you will know for sure because it takes some time to degauss all the internal parts that may have become corrupted by the magnets in the speaker.

TWO: Yes, any set can be repaired the question is cost and wisdom. Old sets are sometimes not worthy of the repair simply because of the likelyhood that another failure will follow soon after. A big screen always invokes a repair charge of $200 and up. After a few of these you will wish you had put all the money into a new set!

THREE: The lines are most likely a problem in the vertical blanking circuits of the set. These are horizontal retrace lines that are supposed to be blanked out during vertical retrace of the raster. Think of it as a paintbrush that scans across the screen painting thin lines and when you get to the bottom of the screen it goes quickly back to the top, but during that time the horizontal, which is many times faster, has made several sweeps; so it must be blanked out during the retrace. The repair involves finding the guilty parts and replacing them. Usually this repair runs over the $200 somewhat.

FOUR: Prior to calling in a service tech try a hard reset to see if that will recover any of the circuit degradations. Merely unplug the power cord and leave unplugged for 4 hours or more. It may help. Or, it may not help; but worth a try since is won't cost you anything.

If the set is over 5 or 6 years of age it probably is not a condidate for any expensive repair. On the other hand, it is a Toshiba - and they make a fine set.

Hope this helps. Let me know if you have further thoughts.

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If the picture looks like a 3D then you have a convergence failure.
I would suggest to visually inspect the STK Ics for dry or crystallized solder joints.
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