Question about Hitachi 50EX20B 50" Rear Projection Television

1 Answer

Does Not Turn On

Our neighbor just upgraded to an LCD TV and gave us their used Hitachi 50EX20B projection TV. After moving it into our home, it worked for one day then just quit. When I press the on button, just get a little click, but no picture. I know it's not the power, since other appliances work fine from that outlet. When I asked the neigbor about it, they mentioned it was going on and off by itself for a while, but would always come back on once they hit the power button. I opened the unit and cleaned it up a bit - I think there was 10 years of dust inside, but the unit still does not come on. I can see a couple of green lights flickering, and a couple of red lights come on and stay on, but no picture. When I "turn off" the power, the red lights go off.
Is this something I can fix? Since it's a free TV, willing to put something into it, but only if it is worthwhile...

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 4 Answers
Re: Does Not Turn On

I actually ended up with this set. It turned out to be a very nasty short circuit on the audio board. To trouble shoot disconnect PSD5 to isolate the power supply. It's the 3rd connector from the back on the left side of the power supply. If you turn on the tv and now see 5 green leds and the one red led, look for a short outside of the power supply. The short on this set was on the left side of the audio board (which is to the left of the power supply) There was a wire add and a part add covered in wax. The bare wire was touching a ground but you have to remove the wax to see it. Since this may be a change that was made to all sets of this model, it may be a common failure. Good Luck all.

Posted on Aug 09, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

No problem, I just need to know how much it weighs.

This thing weighs 250 pounds,had this big bulky DLP tv before for 5 years,gave it to good will,because it big and very bulky.Plasma and LCD tv same size weighs only 50 pounds.

Oct 27, 2010 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Hitachi tv LCD blinking red light tv wont' turn on. replaced lamp model 60V500A

I have hitachi lcd rear projection tv model 60v500A at first I was getting a red spot on centar of tv with in two mounths the spot got bigger. I chanched the lamp but now i don't have a picture, the red indicator on tv is now blinking.

Aug 10, 2010 | Hitachi Projection Televisions

1 Answer

Hitachi 50ex20b shuts of

Hi, you need to stop running the set , call a tech and have him do some solder re-work, this is a cheap, easy fix, keep running it that way and it will become an expensive fix, gl, video-tek

Jun 06, 2009 | Hitachi 50EX20B 50" Rear Projection...

2 Answers

Picture good but no sound on my Hitachi model 50ex20b

Your audio switch on the back may have gotten moved please check the switch

Mar 10, 2009 | Hitachi 50EX20B 50" Rear Projection...

1 Answer


Depending on what you have done so far after replacing STKs it can take up 6 hrs to realine complete convergence on these sets and if your DCU moduel is bad cost is 215.00 This type of alinment requires someone who knows what they are doing .

Oct 01, 2008 | Hitachi 50EX20B 50" Rear Projection...

2 Answers


Check for bad resistors low ohms near your STKs big black ics.

May 04, 2008 | Hitachi 50EX20B 50" Rear Projection...

2 Answers

Hitachi 50EX20B Bigscreen TV

You can download a PDF from here: Make sure that the coolant is not leaking out onto the printed circuit boards. i have had the remote sensor cause this problem before and also I have had bad capacitors in the sweep and the main power supplies. Good Luck

Jun 14, 2007 | Hitachi 50EX20B 50" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

175 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