Question about Mitsubishi VS-5043 50" Rear Projection Television
Picture is fairly clear except for horizontal lines across the screen can this be adjusted out?
Posted by Anonymous on
When you say horizontally, do you mean it collapse or it scrambles. Because the 2 are different problems. If you pictures shrinks or collapse then it is in the vertical circuit. and if it scrambles itself almost like you can see the picture but it is broken up over and over again, then this is video problems in video circuit. Need more info
Posted on Aug 13, 2007
The green CRT's (color picutre tube or color wheel, or ballast) will need to be tested for replacement.
It is quite common with these tv's
You will need an ohmmeter and or voltmeter and test each component for currency and accuracy
Posted on May 06, 2009
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.
Posted on May 09, 2009
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