Question about Toshiba 36HFX72 36" TV

1 Answer

TV picture is dark

Our Toshiba TV model 36HFX72 picture contrast is dark for TV and Video.  Is it time to get a new TV?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: TV picture is dark

The unit flyback has 2 adustments most likly one is focus the othercontrol on the unit g2 which if slightly adjusted will bump ur brightness up

Posted on Jul 30, 2008

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Tv picture is too dark- worked with contrast and

This sounds like low screen voltage(A1)try adjusting the a1 voltage bottom control on flyback transformer if you have a voltmeter, voltage on crt base possible market screen or A1 shoud be beteen 350/500 volts when making adjustment remember to take into account current taken by meter If voaltage will not adjust flyback transformer will have to replaced

Mar 06, 2010 | Standard (CRT) Televisions

1 Answer

Contrast & brightness is at 100% and picture is still too dark

If it can't be adjusted you have a problem with the biasing circuitry. Probably a bad bais IC resistor pack.

Mar 09, 2009 | Toshiba 36A40 36" TV

1 Answer

Toshiba television is black picture

If this just happens while vcr is playing. Check the vcr. Did you happen to adjust its brightness and contrast settings. If things doesn't change. Then if this model is a crt type could be adjustment on its flyback transformer is needed tweaking slowly its screen knob or tweaking also its focus knob until you got it to the level of viewing it correctly.

But be aware, hazardous voltages inside it. Or let th technician set it for you, its a minor adjustment.

Jan 09, 2009 | Toshiba 36AF41 36" TV

1 Answer

How do I fix contrast and brightness on 36" toshiba tv?

you can bring more brightness by removing cover on your tv and then you will see ther 2 button ther in back of your tv one is FoCUs and other is G2 rotate the G2 button till you see more brightness on your screen put the cover back and that is if you dont know to do that go to one authorised service

Dec 10, 2008 | Toshiba 36AF41 36" TV

1 Answer

The Contrast and Brightness on tv appears to be dark.

If this is a CRT-based TV and it's been played most of the time, you may have a bad picture tube, especially if strong red colors bleed to the right. CRT's dim with use, unlike LCD or plasma. But it could also be trouble in the video circuits - none of this falls into the DIY category, unfortunately. High voltage involved, unless you're comfortable around it and want to try turning up the screen controls inside the TV. If you do, let me know - but "no response at all" from the external adjustments points to a more serious problem.

Dec 10, 2008 | Toshiba 36AF41 36" TV

1 Answer

Picture way too dark

Good day,

There is an adjustment on the rear portion of your units flyback. It controls the screen brightness. Check out on this.


Nov 28, 2007 | Toshiba 36A40 36" TV

1 Answer

Darks too dark

try to open your tv and you can find the flyback ,in flyback you can see the screen and focus to adjust.use and try to rotate the screen,it control the brightness of your unit

Oct 15, 2007 | Toshiba 32AF43 32" TV

1 Answer

Picture adjustment questions

*The brightness control setting determines how bright your picture will be. *The contrast control sets the gain of the video circuit. This determines the difference between dark and light scenes. Low contrast settings make the picture "hazy". High contrast settings make the picture more distinction between dark and light scenes. *The sharpness control determine the frequency response of the video circiut. High sharpness settings give better resolution but also shows more noise in your picture. Lower sharpness settings smoothe out the picture removing noise but also fine detail. It needs to be set for the best all around picture. *Picture Enhancement is pre-set adjustments which give you different picture qualities. You just select the one you like. Stargazer

Mar 03, 2007 | Zenith B25A02Z TV

2 Answers

Dark picture (HELP)

Open up the back of the set but be very carefull. Notice a large black block with a large red wire that runs up to the picture tube. on one side of that large block where the thick red wire is comming out of are two controls, one should be marked focus or F and one should be marked screen or S. With the set operating normally and not touching anything else, slowly turn the control marked screen or S clockwish till the picture gets bright enough. If you go too bright the set will shut down or you see small thin white lines so back down on the control. then touch up the focus and your good to go. good Luck.

Dec 01, 2006 | Toshiba 32A42 32" TV

1 Answer

Toshiba 35A44 - Dark picture on all channels and DVD's

for this brightness problem actually came out from flyback, before you spend and waste your money, try to adjust at back of your tv first. But if you aren't an expert, better ask technician to do because that transformer supply a very high voltage....there's two adjustment point at flyback transformer, one point for focus and the other one for brightness! try first...

Nov 06, 2006 | Toshiba 35A44 35" TV

Not finding what you are looking for?
Toshiba 36HFX72 36" TV Logo

Related Topics:

136 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Standard (CRT) Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers


Level 2 Expert

49 Answers

Cindy Wells

Level 3 Expert

4720 Answers

Are you a Toshiba Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides