Question about Toshiba 27A34 27" TV

1 Answer

Dark Picture The picture on my TV is dark and adjusting the settings does not help. This problem started about a 4 months ago and progressively got worse to where you can't see the picture.

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 who has answered 500 questions.

  • Expert
  • 556 Answers
Re: Dark Picture

This problem is due to 1 not proper voltage on crt terminals 2 check video output supply voltage 3 check luminance section of chroma ic 4 if tv is very very old than there is a possibility of crt getting weak

Posted on Sep 14, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

My tv screen is to dark how do I lighten the picture

If your TV has already fully adjusted in brightness set up?, and there will be no good picture results?...try to adjust the "SCREEN-Screw" at the flyback slowly. If the picture still dark'?. the picture tube has need to rejuvenate.

Oct 24, 2014 | JVC Standard (CRT) Televisions

1 Answer

Picture has become progressively dark 27'' TV JVC AV-27320

disgaussing will not help this problem..i am scared your picture tube problem or try to change the crt socket first it is not cost much

Jul 01, 2009 | Standard (CRT) Televisions

1 Answer

TCL TV picture too dark

try turning the light sensor off

Oct 20, 2008 | JVC AV32F476 32" TV

1 Answer

Picture is too dark

How many years is your TV now? Usually TV has its life span, there comes a time that it happens. And need to look for a technicians, cause some of theme can still be repair by adjusting the brightness inside your TV.

Oct 19, 2008 | JVC AV-27530 27" TV

1 Answer

Dark picture, mostly red colors

if you set is over 4 yrs old the tube is at fault,you may try to adjust the screen settings.

Mar 27, 2008 | Zenith B25A76R 25" TV

1 Answer

Dark Picture

Hi there!
The knobs you refer to, are those perhaps the knobs on the board or knobs on the flyback transformer? None of these knobs should be turned. They are preset to the factory standard and if a fault occurs the fault should be addressed, not adjustments to pots. I would suggest checking all the caps in the power supply, Line stage and video section. It may also be the video processor(in the area of the tuner section). Check for caps which are rounded at the top. This is common for dark picture. Please note: There is on average about 15000V running through a TV when switched on, please be careful and unplug when changing components or refer to a repair technician. Good Luck, Jus004

Jun 06, 2007 | JVC AV-32FA44 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

1 Answer

Dark picture

How old is the TV? More than 6-7 yrs? Then it's time to do a trade in. But if you are very attached to it, get a Technician to recondition the Picture Tube. This may give it life for another couple of years. You could also ask a technician to check the DC filter Capacitor for the HT line to the Video Drive circuits. Over time this capacitor dries out and also causes a darkening of the picture. It is normaslly a 100 mfd 160V capacitor.

Sep 08, 2006 | JVC AV-27D303 27" TV

1 Answer

RCA F32649

i dont know this exact model, but i can advice you based on a slightly diffrent model. i hope the solution will be valid for your model as well: TV is digital controlled and have to be adjusted via service menu except the external focus and screen on back of (flyback) high voltage transformer. This is one you can try: Need plastic allen or plastic small flat blade screwdriver to fit these. Focus is top, bottom is the screen that set the overall brightness. Before adjusting, go in menu: press menu once, select picture quality, I think number 4, press 2 for "preset..", press 2 again to select normal. Back out by pressing zero repeatedly. It may ask you to save new settings, select yes. If screen is adjusted too bright, picture look lousy (washed out) the blacks will light up (becomes grey, or visible lines) this means you have actual fault that prevents you to get decent pix, that when it is time to take it in for repair.

Feb 11, 2006 | RCA F32649 32" TV

Not finding what you are looking for?
Toshiba 27A34 27" TV Logo

Related Topics:

90 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