Question about Hitachi 53UDX10B 53" Rear Projection Television

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Hitachi 53UDX10B My t.v. is about 6 years old. I powers up, but i have a blank screen and it makes a chirping sound. Any help would be appreciated. Thanks.

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Sounds like the HV board is gone

Posted on Jul 08, 2007

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With the set unplugged check the horizontal output transistor, horizontal driver transistor and the horizontal driver transformer, for shorts, cold solder joints. Next if all checks ok, suspect the convergence IC's and related circuitry.

Posted on Jul 06, 2007

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1 Answer

Blank Screen


If it has sound, then its back-light has failed which is a service engineers work but may also be related to a screen fault in which case a new set is needed as cost of repair makes it not worth it.

If no sound then dare I say worse and mostly if more than 2 years old, not worth it, sad to say as parts do not linger very long other than major brand names most are generic badges on economy sets.

Hope this helps..........

Nov 24, 2017 | Vizio vm190xvt 19 in. TV

1 Answer

Hi we have a 720 Magnavox flat screen tv that is about 5 years old. When i went to turn it on the other day the picture started flasing and making a chirp noise.. and won't fully


power supply problems does it have a separete power supply if so you can try to change or if you have someone with the same you can ask to try it.if its internal power supply it needs to be fixed.

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1 Answer

2002 tahoe chirping sound- turn steering to right lessens chirping sound


Sounds like you have a brake backing plate (or something similar) rubbing the brake rotor, or up against the tire or wheel. I would look at that first. It is very likely not the power steering or the pump or belt. You are saying that the chirp is less when steering to the right. Look at the Right front wheel and wheel bearing.

Dec 27, 2017 | 2002 Chevrolet Tahoe

1 Answer

My Viewsonic N4060W 40" LCD TV will not come on, i get a steady green light when power button is pushed but the screen is blank and no sound. My TV is 3 years old and just last year i had a somewhat...


Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find. If the tech installed a used power supply, it may be bad also. 3 years are typical for capacitors to go bad.

Nov 15, 2009 | ViewSonic NextVision N4060w 40 in. LCD...

1 Answer

My Daewoo TV screen just went all Blank n Black suddenly while it was running all fine Then this was accompanied by a strange clicking sound and now whenever i turn it on,it just shows nothing(blank...


The set has developed a short either in the power supply or the horizontal/high voltage circuit. The power supply makes a weird noise when it gets overloaded. This can get complicated so have a repair shop check it out for you. Thanks

Nov 01, 2009 | Daewoo DTQ-13V1FC TV

2 Answers

Noise from hitachi 42PD5000


The noise is coming from one of the plasma driver boards. There are 2 inside the set. These are essentially power supplies for the plasma itself and contain many capacitors. The noise you hear is some oscillation inside a cap or two. This is an indication that one or more components have drifted from their rated value. While the set will continue to work for a while, that board should be replaced. If the board fails, 1/2 of the picture will be blank or the set will not start at all. Call around to get the cost of that board. Please note that continued use of the set WILL NOT cause any harm. This is an annoyance only at this point.

Dan

Apr 29, 2009 | Panasonic Viera TH-42PX80U Plasma TV

1 Answer

Zenith iqc50h95 50 in rear proj


Rainman, can`t really be of any great help on this one, both techs can be right, the chirp is exactly as you thought, the set is trying to come on but there is a short in the set and it`s shutting down because of the short, could be convergence, low voltage power supply, high voltage power supply, until a tech gets in there and starts un-loading circuits it`s impossible to say where the short is, gonna have to call someone out for this one, good luck with it, BMW Rider

Jan 09, 2008 | Zenith IQC50H95W 50" Rear Projection...

2 Answers

TV making chirping sound


If one of the secondary supplies is shorted, the power supply will "chirp" when plugged in. This is the power supply's way of protecting itself and this usually happens when the horizontal output transistor is shorted. If this set was in my shop and needed a new output transistor, a fair price would be right around $100.

Jun 28, 2007 | Toshiba 32DF46 32" TV

1 Answer

When tv turned screen is blank and chirping sound comes from back


A chirping sound usually means that one of the secondary supplies has shorted, most likely the horizontal output transistor. The power supply "chirps", which is the sound it makes when it protects itself from drawing too much current. The set should be serviced by someone with experience in Philips projection TV'.

Jun 21, 2007 | Philips 43PP9202 43" Rear Projection...

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