Question about Toshiba 36A42 36" TV

1 Answer

No red when the TV is turned on, there is no red present but when you turn it off, there is a circle of red, blue, and green in the center of the screen as it is being turned off. Could this be a video driver problem and if so, where is it? Thanks

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 432 Answers
Re: no red

There're video guns. Red, Blue, and Green. Sounds like they maybe going bad and need replacing. The red is already going out. Could be about $200 or more to fix.

Posted on Jun 24, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

1 Answer

Tv out of foucs

These procedures are from the owners manual, go into menu and then picture quality and then: Convergence The Convergence feature lets you adjust the TV’s three tubes. When the TV tubes’ images are precisely aligned, they create the color images you see on the screen. Over time, the picture can drift out of alignment (this is normal). If your picture seems fuzzy or has a yellow tint, using Convergence could correct this misalignment. Only one convergence is needed for all inputs, regardless of the signal format. Note: Make sure the TV has been on for at least 30 minutes (TV needs to warm up for best results) before starting Auto Converge or Red/Blue Centering. When you select the Convergence feature, a submenu appears with three options: Auto Converge Automatically aligns the projection lenses to self-correct color images. You’ll see flashing squares of color dance across the screen (this is normal). Note: After performing auto convergence, use the Blue Centering and Red Centering menus to fine tune convergence in the center of the screen, if necessary. Blue Centering Aligns the blue and green images to fine-tune the picture. Red Centering Aligns the red and green images to fine-tune the picture. Note: The ability to change channels is disabled when adjusting the convergence options. The TV must be tuned to a usable signal to converge the picture.

Apr 23, 2010 | RCA HD52W58 52" TV

1 Answer

My bush tv has a light purple circle in the middle with a blue then green halo.It turns red to blue in the centre,is it worth repairing.

has any full tv image? if not is a vertical and horizontal circuits defectives, send to repair

Nov 22, 2009 | Bush 5693D 24" TV

1 Answer

Green picture only

The projection TV has 3 guns RED GREEN BLUE. In your case the red and the blue guns are gone. So you are getting the green color screen. You got to replace the picture tube.

Jul 25, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

Screen series of coloured circles

The degusser is out .
When you turn the set affter its
been off awhile it makes a thud sound
and demagnatizes the tube thats
the degusser working . cost to
fix verries on makes 40.00 80.00
on 27"

Jul 01, 2009 | Standard (CRT) Televisions

1 Answer

Intermittent blank screen with r,g and b semi-circles at top of screen

the blinking standby light should be a help. It should be blinking a repeating code. Can you post that here please?


Sep 09, 2008 | Sony KP-46V35 TV

2 Answers

Tv rainbow in screen

The picture tube has become magnetized, possibly by someone getting a magnet to close to it. You can de-magnetize it using a strong magnet (cow magnet or similar). Place the magnet as close the the screen as possible without touching it to the screen. Starting at the middle of the screen and slowly (not too slow, about one full circle per second should do) move the magnet in a circular motion. With each full circle move the magent twards the outside (making a larger circle) as well as moving it farther away from the screen. Using a magnet will not harm the screen, so play with it and you'll soon get the feel and will see what you need to do.
Tv's have a circuit built in to 'Degauss' (demagnetize) the screen each time you turn it on, but this will only work if the set is 'Cold'. If the set is left off for 2 hours (to cool doen) and does not demagnetize when you turn it on the circuit is faulty.

Jul 21, 2008 | RCA TruFlat 27F520T 27" TV

2 Answers

Screen Green Tint

Turn down your color and see if the screen has a normal black & white screen. If it doesn't then the CRT is bad (picture tube). If it is black & White then you have a either lost your red or blue.That problem will be in your video driver circuit of which a service center can handle.

Feb 18, 2008 | RCA 20V500T 20" TV

1 Answer

Colored Circles

sounds like the degausing coil isnt working or you have a speaker close by.

Dec 04, 2007 | Panasonic CT-36D32 36" TV

5 Answers

My tv is picture is blue and green

Hi there my t.v has a similar problem, I turned it on and the colours arn't right, there the colours go out in three circles mainly mainly blue, green, red yellow, but depends whats showing on the t.v? Please help.

Apr 17, 2007 | Bush 5693D 24" TV

2 Answers

Green is not being displayed on my TV

If you have experience troubleshooting solid state TV sets, you should be able to tell by a couple of voltage measurements if its a problem with the picture tube or the drive circuit. Simply take the multimeter and compare the base voltage of the green drive to the red or blue drive transistor. If the voltage is about the same, measure the collector of all three. if the green voltage on the collector is higher then the others, then theres an open between the drive transistor and the crt element. this could be an open resistor, a bad solder connection on the crt socket, or an open picture tube element. If theres no voltage there then your going to have to trouble shoot the drive circuit.

Sep 08, 2006 | Toshiba 32AF41 32" TV

Not finding what you are looking for?
Toshiba 36A42 36" TV Logo

Related Topics:

54 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

4719 Answers

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

Answer questions

Manuals & User Guides