Question about Mitsubishi CS-40503 TV

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Mitusbishi tube

The t.v. screen is divided with black and black with picture going through the middle of the screen.

 

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Ok! you have defective vertical boost up! your defective parts is small capacitors or resistors! at vertical section!

Posted on Oct 22, 2007

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Replace vertical output IC,check caps in vertical power supply,
replace open 1 ohm resistor in B+ supply located near flyback
transformer.......T.

Posted on Oct 25, 2007

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1 Answer

Black vertical band on tv screen


Actually I am not sure about this one, but I like to suggest to leave the unit running for at least 24 hours and see what happens. Going by the amount of time it has not being used it is hard to tell what actually occurs, the advice is to leave it on standby for any period of time. See what happens anyway, you can't do anymore damage than you already got can you? Else, keep switching it on and off, it may clear it that way. If you are able get a update on-line, re-program you tv it worked for my Samsung 39 inch. Good Luck

Aug 15, 2014 | Televison & Video

1 Answer

Sony KP-57WV700


Hi. It seems that the g2 voltage of the picture tube is too high, resulting in a white screen, often with white horizontal lines. The g2 (= second grid) voltage is derived from the flyback high voltage. The voltage divider is mostly integrated in the flyback trafo housing.(including the adjustment knobs). A failure in this divider may lead to this defect. The static you hear may come from sparking in the divider. The flyback trafo is soldered onto the main printed cirrcuit board. Sometimes, one of the pins sits loose in the soldering pads.
Turn on the set and observe for any sparking around the entire flyback circuitry, and, or the flyback trafo itself
The screen turns black after a while, as a too high beamcurrent is detected. The set disables the flyback. Stand-by blinks meaning that there is a fault condition.
Be carefull with the high voltages. The flyback voltage is very high (20-30 Kilovolts !) and may be lethal !!

Jul 02, 2012 | Sony KP-57WV600 57" Rear Projection...

1 Answer

Black spot in the middle of the screen looks like it has a burned spot


Yes if it uses 3 picture tubes one is burnt dead center--cover the lens one at a time to see which is causing this--permanent damage caused by a arc.

If a newer set you have a display unit with a dead pixel.

Mar 31, 2012 | RCA Televison & Video

1 Answer

I have a hitachi 50vs69a with 2 yellow spots in the middle of the t.v when powerd on.....black when off. these spots almost resemble states...there is also blue splotches in the middle of these spots. any...


Yes, if the spots are round or teardrop it may be burnt picture tubes.

Easy to confirm this by covering lens of tubes one at a time with set on and see which removes the blotches.

What happened in a lot of these sets is the set arcs and burns a black dot dead center in one or all three of the screens of the picture tubes used--fatal case and permanent.

Mar 14, 2012 | Hitachi 50VS69 50" Projection HDTV

1 Answer

Television hAs a black box blocking picture in the middle o he screen. when you hit volume the black goes away until the volume icon goes off


Go to ur tv menu.Go in captioning turn off all 1,2,3 and all txt will stop the black box in the middle of the screen.

Mar 26, 2010 | Toshiba 32A33 32" TV

1 Answer

PSCAN warning and screen is split in two


hotpoint first edition hvl211 has 3 flashing lights how do u stop this is there a reset you can do

Jan 05, 2010 | Acoustic Solutions Audio Players &...

1 Answer

There is a black empty box in the middle of my TV


use your remote to go to your closed caption settings and shut off the 'text'.

Jul 07, 2009 | Daewoo DTQ-20U4SC 20" TV

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