Question about Toshiba 43HX71 43" Rear Projection Television

1 Answer

Click when plugged in and steady blinking red light.

Would it be power supply or fuse? How to get part #? I acquired a Toshiba 43HX71. Plug it in and there is what sounds almost like a double click(could be single) and the power light just blinks. I hit the power button and the light stays on for a few seconds and than starts blinking again. This is a red light. Any ideas? I've been seeing alot of power invertor problems with rear projections. Might this be something similar? Hopefully someone can help.

Posted by on

  • 1 more comment 
  • jakmiller May 27, 2009

    I've taken the back off and inspected the pc board of any obviouos
    signs of burn't resistors, capacitors and etc. I've also looked at the
    main heat sinks and the chips or mosfets(can't remember exactly what
    they are). Nothing seems obvious. I checked the fuse and its good. I
    even got the assembly out enough to where I could tilt it 90 degrees to
    see the other side of the boards. I just can't seem to find anything. So, I'm down to getting a multi-meter and testing every part possible.

    You think it would be the video side even though the tv does not turn on?

    I'm sorry for being such a novice. I do know alittle bit about this, but, could use to learn more.

  • jakmiller May 28, 2009

    There's the two main boards, three to four individual boards on the audio side(where the audio jacks are located). Also a mini board located up by the projectors, the smaller boards on the bottom of the projectors and a board located up on the front just under the speaker. If you have an email, I could possibly get pictures and send them to you.

  • jakmiller Jun 01, 2009

    I found three to four leads have started to come up on the Covergence IC connections. Should I just solder in some short leads or is there a way I can fix the connections? I'm just replacing the IC's to be sure that I won't have to do this again.



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Toshiba Master
  • 1,525 Answers

Hello it sounds like it could be just a dry joint on the video section of the tv good luck


Posted on May 27, 2009

  • 1 more comment 
  • shaun taylor May 27, 2009



  • shaun taylor May 28, 2009 just dug some old notes out check these parts /Z801/ this might have dry joint .check .P803 /F850/F852/D7808/L7711 when checking these parts desolder 1 end lift away from the board so you get a proper reading on the meter i'll try and get you a service manual get back to if you find anything


  • allenica Mar 29, 2011

    I have a Toshiba 43HX71 for 8 years.
    No power on only with a red blinking LED light.
    Not always the STK392-110 convergent IC problem.
    Open the lower-back cover, goto the far-left corner.
    On the big-floor PCB, try to locate the black SOC Fuses.
    Total 4 (5Ax2, 2A, 1.25A) around a group of purple Capacitors.
    These bad FUSES are all with infinite (1) resistance unit.
    Should be easily picked up with a Volt-Ohm-Milliammeter.

    Replaced and done. Good Luck to all.
    Allen 2011/3/27



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Lg 47ls4500 tv will not come on. Has a steady red lite, not blinking.

There could be an open internal fuse or failed power supply.

Jun 25, 2016 | LG Televison & Video

1 Answer

Toshiba 57H81 Blinking power light


Power supply cannot sustain / provide juice to the whole system.
If you are qualified to do electronics, check the power supply section, otherwise contact a repairman.

Keep us posted and thank you for using our service.
FixYa for all your troubleshooting needs.

Jun 29, 2008 | Toshiba 57H81 57" Rear Projection...

1 Answer

Cannot locate internal fuse in my Toshiba 32DV504B

Contact any service technician. The fuse can be located at its main power supply regulator board itself. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.

Mar 16, 2014 | Toshiba Televison & Video

1 Answer

Power Problem with 2Wire 2701HG-B

Sounds like a startup self test. All wireless devices go through a power on self test. Does it connect? You can connect to it and go online? I rarely turn mine off, only in a electrical storm.

Nov 22, 2012 | 2wire (2701HG-B) Wireless Router

1 Answer

My toshiba 50 inch when i plug it in it clicks and that's it no picture sound nothing

not knowing the model number just a general answer: Click is likely a mechanical power relay that should do that--problem likely in power supply of set or something triggering protective shutdown elsewhere in set, a bit like saying my car won't start as a number of different reasons for this issue.

Nov 03, 2012 | Toshiba Televison & Video

1 Answer

Set is getting power, but no sound or picture. we purchased it black friday

Power supply issue such as bad caps etc. But need the model number of the set in order to assist further.

Feb 08, 2012 | Hisense Televison & Video

1 Answer

Power went off will not turn on. When I replug tv in the red power light blinks for a monment then all power if gone. Is there an internal breaker? I was attempting to plug the jacks to my sterio through...

If the red light is blinking then the internal main fuse is good...sounds like the switchmode power supply regulator has gone may need to have a repairman look at it as it may be extensive due to power surge.

Dec 22, 2010 | Toshiba 36A43 36" TV

1 Answer

My Toshiba rear projection TV -43hx71 is periodically turning itself off and on while we are watching a program. What could this be?

When tv shuts down for some reason, does it turn on again itself or you need to press power button to turn it On?
Let me know how old is this tv and any other related info that you think might be helpful to diagnose problem.

Oct 31, 2010 | Toshiba 43HX71 43" Rear Projection...

Not finding what you are looking for?
Toshiba 43HX71 43" Rear Projection Television Logo

Related Topics:

256 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74473 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jaime Hernandez

Level 3 Expert

2318 Answers

Are you a Toshiba Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides