Question about Hitachi 46UX24B/25K 46" Rear Projection Television

1 Answer

Power goes off intermittently while viewing

When power suddenly goes off,I use remote to power on producing this result: I hear the familiar "shutting OFF" sound ,I press power button on the remote a second time and the power comes on as usual. I am OK for sometimes an hour,sometimes only 5 minutes. The overall picture is always great. This set is 10 years old. I am 70 and can't afford another new TV at today's prices. Would it do any good to unplug it,take the back off and vacuum out the dust? This is NOT a worn power cord problem ; it has not been moved for 10 years.

Posted by on

1 Answer

Re: Power goes off intermittently while viewing - Hitachi 46UX24B/25K 46" Rear Projection Television Projection Televisions


Posted on Mar 21, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

2 Answers

Tv pops on and off suddenly after viewing for about 10 to 15 mins. this problem becomes progressively worst after prolonged viewing. as of today there is absolutely no picture and or sound.

Your symptoms exactly match this scenario: a component involved in picture & sound was failing intermittently, then progressed to a hard failure.

My suspect: a power capacitor in the power supply. They sometimes fail this way - when the dielectric breaks down completely, then the power supply fails, causing no pic/sound.

Fix: replace power supply (or the specific capacitor, if you can determine which one died).

Oct 23, 2010 | RCA D52W20 52" Rear Projection HDTV-Ready...

4 Answers

Toshiba TW40H80 40"

ok! maybe you have defective convergence correction circuit! sir do you have experience in electronic repairing?

Oct 11, 2007 | Toshiba TW40H80 40" Rear Projection...

1 Answer

My kf-e50a10 lcd projection tv suddenly just shut off and when i

Check your fans. You have a stuck fan. You may want to call a service center as it is a pain to get to one or two of the fans. Theres 3 or 4 of them.

Dec 15, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Panasonc 32 inch TV - when you press the power switch on the front the indicator light blinks constantly - If you pull the power cord you hear a relay sound - then plug it back in and you can power it up -...

Using the remote turn it on and off if you do not get the same results then you will be best served by taking it to a authorized service center since the power relay unit switch is one punit and not something that a customer can do himselfif nota qualified technician.

Dec 13, 2008 | Panasonic Projection Televisions

1 Answer

Pioneer 710 hd power/not turning on 10/12/08

When the set goes into protection BANG like that, without any intermittencies, usually the convergence ICs have gone out and need replacing. I recommend using the STK 392-180s, which are the stronger upgrade to the 392-110s used originally. You'll need 2.

Mr Bob
bob at imageperfection dot com

Oct 13, 2008 | Pioneer PRO-710HD 64" Rear Projection...

2 Answers

Need Help big screen turns on thens goes off

a tv has two components, firstly a power supply produces high voltage to trigger a line transformer, in turn a transformer produces smaller voltages. firstly check if the ht is constantly been produced from a supply, if this is there than go to a line transformer, and check voltages at the output.

Sep 10, 2008 | Panasonic PT-61HX40 61" Rear Projection...

1 Answer

Screen seems to flip

All the symptoms in your tv point to a convergence problem,the unit has 3 amplifiers one for each color,this amplifier IC's need to be replaced and then realign the colors,sometimes just by replacing the Ic's you are able to realign the color with the remote but sometimes they need to be realign from the service menu. You can identify the IC's because they are mounted in heatsinks and by its marking,in the front they have STK--- ---,6 numbers after the letters,their size is about 2.5 " long and 1.5" wide with a row of pins solder to the main board.If you are familiar with tv service this information will help but if you are not too familiar be safe and call for assistance from a servicer.

Oct 12, 2006 | Toshiba 61H70 61" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

156 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Hitachi Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides