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Bad video how would we identify this part, and is it worth replacing?

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Usually its more to replace than to just get a new TV, I had one replace about 2 years ago, and it cost me short of 50 bucks of what I paid for the set.

Posted on Aug 30, 2008

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1 Answer

WHat has caused both audio and video to go out?


Usually a bad power supply. Not worth trying to fix at the price of new flat screen LCD TVs

Jul 31, 2014 | Hitachi 50GX30B 50". Rear Projection...

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7 year old sony projection tv. suddenly multiple video inputs stopped working. only one input works but no sound. no video even off cable.


Can you please provide us the brand and model of this unit so we can help you better with your concern...

Oct 21, 2008 | Projection Televisions

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Need hook up for computer


Hook up to Computer


• Identify ports that you have on your computer , look for Video Out

( read your computer manual )

• Identify Audio and Video inputs of your TV

( read your TV manual )


To hook up ,

• Computer Video Card Out

( set it to use a secondary monitor )


to TV Video In



• Computer Sound Card Spk Out to TV Analog Audio In

Aug 03, 2012 | Hitachi Projection Televisions

1 Answer

I have a 2004 Zenith 44 inch LCD projection television, model E44W46LCD that keeps overheating. Is it worth getting fixed or should I buy a new one?


I would like to know what you mean by overheating.
If you mean it shuts down after a period of running (30 seconds or 30 minutes, or whatever) then your issue may not be overheating at all!

There's a good chance you have failing electrolytic capacitors either in the power section or the inverter / ballast section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the TV will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.

If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.

If you are handy with a soldering iron and can identify the power supply and inverter / FM / ballast section for the backlights / bulb(s), an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are positive it's only doing ripple filtering, and even then, you should go OVER, not under the uF rating).

Most of the caps that go are 10V 1000uF or 3300uF.

I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.

http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related

As you can see, this issue spans plasma TVs, as well as large and small LCD and projection TVs and monitors.
The parts are cheap, and skill required is minimal.

Apr 26, 2011 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

My tv popped shut off and wouldnt come back on unplugged it it will power on and shut right back off


Since you say it made a pop sound, there is a defective part on one of the circuit boards. It shouldn't be very hard to identify due to the fact that it will be burned or bulging. Capacitors can make this pop sound due to the fact that the electrolyte evaporates inside of them and they vent. Some decide to explode rather than vent. You could look around inside your tv and inspect the circuit boards and see if you can find the bad component. If you are handy with a soldering iron you could do the repair yourself. If not, it might be time to upgrade to a new set or if it is worth it to you, have this one repaired at a shop. Sometimes when you repair the tv, there may be an underlying cause that made the part go bad or soon after, another component may fail.

Mar 12, 2010 | Hitachi Projection Televisions

1 Answer

Flashes green yhen shuts off


Many of these sets had bad picture tubes--they use a red, green and blue crt. Most commonly the blue gives troubles--The tubes are now only available on a rebuild basis--usually not worth doing as the cost is very high.

You may have a bad blue picture tube but there is a way to deal with this first----the set has a black plastic block with six controls---three are Focus(red,green,blue) the other 3 controls are Screen controls(red, green, blue)

Someone has to remove the entire piece on the front of the set below the screen(usually a plastic part) most of the time it is secured with 3 screws on either side of the set in the back; once you remove the screws the entire piece should pull out(pull from right to left(it will not fall off or come out easy--it is held in with several large plastic pegs) With it removed there is an inspection plate with 4 screws-----the screen/focus block is behind it.

You need to look very closely at the block to identify the focus versus screen controls----one row left to right will be marked Focus and the other row leftto right will be marked screen------YOU need to locate the Green Screen control (they are black like the block) With the set on(be careful) go to a video input clip_image001.gif with nothing connected---if you see a green screen as well as the input number turn the Green SCREEN CONTROL SLOWLY TO THE LEFT UNTIL THE green is gone.

If this cures the problem you may only be buying yourself some time----if the picture tube is bad sooner or later this trouble may return----I have seen sets where this was adjusted and the set worked for a year or more with no repeat of the trouble----replacing thetube would likely cost you 400 -500 parts and labor.

I do this here for free so if this has helped you rate this solution.


SD TECH

Dec 14, 2009 | Sony KP-65WS500 65" Rear Projection...

2 Answers

Blue violet ghost


did you just replace your lamp? your balance is probably off.

Jan 31, 2008 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

Toshiba 50H72 rear projection TV. NO Video


Bad caps and solder connections, especially in around the 9v regulator just about center of the defection circuit... Not a terribly expensive job and certainly worth the repair if the cabinet is in good condition...
Bill

Jan 13, 2008 | Toshiba 50H72 50" Rear Projection...

1 Answer

Hitachi rear projection 60" tv, power failure


Yes,it's worth it ! Check for bad C702 capacitor next to HV
transformer covered partially by glue and E994 open pico fuse
in power supply .part # for cap 1-161-754-00 102K / 3KV.......T.

Dec 04, 2007 | Hitachi FDX Series 43FDX10B 43" Rear...

2 Answers

Tv wiggs out with too much black


This model is famous for capicators going bad, and would probably not be worth repair.

Jan 03, 2007 | Mitsubishi VS-5075 50" Rear Projection...

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