Question about Panasonic PT-56HX41 56" Rear Projection Television

1 Answer

TV comes on then goes off.

I tried to turn on my set with no luck. I unplugged the tv and it came on but only long enough to get sound and then turns off again. Unplugging the set allows me to repeat the problem but has not corrected it, any suggestions.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 337 Answers
Re: TV comes on then goes off.

The unit is sensing a problem and thats why it turns itself off,if you are familiar with tv service you can check the output transistor for a short ,this is a good place to start,this will involve checking the component with a meter if is bad it will have to be replaced with the same type,if the transistor is changed and it fails again the set might also need the output transformer(flyback)all this checking has to be done with set unplug,if you are not too familiar with tv's be safe and call for assistance from a servicer this is the high voltage area and is dangerous.

Posted on Oct 11, 2006

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

2 Answers

Sony kf 50e200a screen goes black and sound turns off for min...

TV has gone into "protect mode" to do just that to protect against the damaging failure that has been detected, you will need a servicer to diagnose the failure. Good luck and Merry Christmas!

Dec 25, 2009 | Projection Televisions

1 Answer

Sound but no picture, tv turns off and on

It sounds Lamp is dead in your TV, how old is this TV and did you replaced its lamp recently?
Click Part Store to see required lamp image and price info.

Nov 02, 2009 | Toshiba 46HM95 46" HDTV

2 Answers

Mitsubishi WS-55909 dm board repair

I have the same TV and the error light code on my set is 22

May 31, 2009 | Mitsubishi WS-55809 55" 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

Lost Color after Speaker was too close to TV

Good Day, Props123;
It sounds like you may have locked-up the micro, try unplugging TV from wall for 3-4 minutes, then replug. If the TV was magnetized (crt) the osd would also display no color.
Good Luck, Big Irish.

Jul 08, 2008 | Sony KP-51WS510 51" Rear Projection...

5 Answers

No picture but has sound

switch on no picture but short period of sound then nothing

Jan 20, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Wont turn off, goes to magic focus

enter your menu set up and turn off auto focus and see what happens then,also check your other settings while your there.

Sep 09, 2007 | Hitachi 51F500 51" Rear Projection...

1 Answer

Chirping noise

Sounds like something may be shorted out inside keeping the power supply loaded enough it wont start, dont recommend trying to fix unless you know EXACTLY what you are doing, there are some high voltages inside, I wold Call a TV tech out to repair, Just FYI, these sets from Phillips/MAG usually have CRT fluid getting cloudy causing discoloration/fog to pix around this age and older, between both repairs, some sets start around $1000, just an idea.

Jul 16, 2007 | Philips 60PP9352 60" Rear Projection...

3 Answers

Need Help big screen turns on thens goes off

The unit is going in to shutdown. Sounds like you have a short in the high voltage section.

Feb 18, 2007 | Panasonic PT-53WX52 53" Rear Projection...

2 Answers

Toshiba 42wt29b. screen keeps turning blue

MMMM Hard call here. The fact that it does try to come on blue maybe an indication that the power supply regulator circuit is good. It could also be a shorted blue tube and when it comes on its overloading the screen drive and the set goes into overload protection shutdown. The real way to see Would be to pull off the blue crt socket as well as the Hi Voltage lead on the crt and see if the set comes on without blue. If it does Your gonna need a pict tube. If it dosent then troubleshooting along the switched power supplys would be neccassary.. BUT I advise you THAT IF YOU HAVE NO EXPERIENCE TROUBLESHOOTING TV SETS PLEASE SEEK A PRO TO ASSIST YOU AS THERES VERY HIGH VOLTAGE INSIDE THESE SETS EVEN IF THEY ARE UNPLUGGED. GOOD LUCK

Jun 28, 2006 | Toshiba 42H83 42" Rear Projection...

Not finding what you are looking for?
Panasonic PT-56HX41 56" Rear Projection Television Logo

Related Topics:

59 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

Josh Whitehead
Josh Whitehead

Level 3 Expert

1142 Answers

The Knight
The Knight

Level 3 Expert

66623 Answers

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

Answer questions

Manuals & User Guides