Question about Mitsubishi VS-45607 45" Rear Projection Television

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Horizontal lines on TV are bouncing across screen and will disappear after TV warms up (sometimes). Please help!

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Re: Horizontal lines on TV are bouncing across screen and...

It's caps most likely and one of the more common that fail is C2p08 100mfd/16v in the 5v line. But there are undoubtedly others and you'll probably need to shop it to get them all...
A tech will use an ESR meter to test the caps, testing for their equivilent series resistance. Too high or open caps need to be replaced.
Caps are not that expensive so the parts cost will be minimal. But it is labor intensive to go through each circuit and find the failed ones...
Mits are some great Tv's though and worth the repair.

Posted on Dec 19, 2007

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White horizontal lines covering picture on Toshiba 51HC85

The set uses a Hyper board inside that processes all signals, it is well known for this issue, board no longer available=reason is quite simple : about a dozen tiny surface mounted filter caps on that board with age dry out, at first it will work after warms up as poor caps regain some capacitance and seem to be ok.

Buy a new set, you can send that board out and have it repaired/rebuilt but the last one I saw which was under extended warranty cost about 200 just for the board rebuild.

In the last 4 years Here on Fixya I have encountered only 2 people who were able with instructions had the skill to remove the board and replace those caps, both were top notch computer repair techs.

Dec 09, 2012 | Projection Televisions

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Limes across screen when first turned on, by turning off and on sometimes fixes it, what could cause that problem?

If the lines are colored or even look 3d it is a convergence problem--if other lines it will depend on what they look like and what the model number is.

May 27, 2012 | Mitsubishi Projection Televisions

1 Answer

Vertical lines appear on screen...

You have a defective light engine. Contact RCA support. Sometimes they will warranty these even after the 1yr warranty has expired.

May 16, 2009 | RCA HD50LPW42 50" Rear Projection HDTV

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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.

May 09, 2009 | Mitsubishi WS-55511 55" Rear Projection...

1 Answer

I have red horizontal lines across my entire screen. The lines are noticable. However, I still have a clear picture.

I fixed my problem: it was the screen voltage.
To (try to) fix it: open up your tv, look for a thing like this:
As you can see it has 3 control-screws. one of these is for the screen (it has the text 'screen' near it), turn it slightly to the left to reduce the voltage, and the lines will probably disappear.

Apr 06, 2008 | Projection Televisions

1 Answer

Horizontal lines and screen bounce

These sets have capacitors that will go bad, but without a good ERS meater that tests these in curcuit you could be spending a lot of time doing nothing, But the most common is to find the 9 volt reg on the signal board and change all within a 2 inches of that regulator

Feb 07, 2008 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer


Your red CRT socket may be loose or have cracked solder if not, try turning down the red gun screen control inside the set just a little. Youre experienceing what is known as retrace lines

Jan 21, 2008 | RCA P52771AT 52" Rear Projection...

2 Answers

Lines in picture

I had this problem around the time my TV was 3 years old. I ended up having to get it repaired at a TV repair place, it cost me $375.

Sep 24, 2007 | Toshiba 57H83 57" Rear Projection HDTV

1 Answer

Horizontal lines and screen bounce

You have some leaky filter caps - C2C52 = 10MFD 50 VOLT (off base of Q2C51 on signal board) also check C2P05 = 100 MFD 16 VOLT off pin #3 of IC2P01 and C2P08,C2P03 = 100 MFD 16 VOLT

Aug 22, 2007 | Mitsubishi VS-60707 60" Rear Projection...

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