Question about Toshiba 32A43 32" TV

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Brightness I have had this tv about 3 years now.The problem i am having is that my picture brightness will not go high enough.And is at the max on control.The picture is dull and hard to see.Could this be a blown fuse or is my tube going out.

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Re: brightness

As you said your tv is about 3 years old. we cant tell that the picture tube is defective and im sure your CRT socket is in solid contact at that 3 years old tv. for me it could be a path ways to the CRT wirings. a blurry picture may cause a insufficient voltage or a lost of voltage ratings. try to check if you can see and test a leaky capacitor 16V 1000mf near from the CRT wirings ending in contact to the main board. if you cant fix this problem contact a pro to solve your problem. good luck

Posted on Aug 24, 2007

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How long u have this RCA analoge tv?Around 10 years or more and used it like about 5 or 6 hrs everydays?Yes,than ur tv it is losing CRT tube radiation cohetion.As times go bye years in years out the tv CRT-(tv tube) radiation will slowly dying out,Tv actual pictures will lost some of it luster and it brightnesses to the tv auctual pictures.Brightnesses of CRT tube will get darker and darker until the tv actual pictures barely it is watchable anymore.Contrast,Brightness and Colors adjusting more will help some.But u have to take this tv aparts and take a Flat scerw driver turn up a little bit more of the tv HV-(high voltage) SCREEN button on the FBT-(flyback transformer) to make any big differences of the CRT tube brightnesses.The FBT-(flyback tranformer) is the big block of plastic with a red wire with a black cap hook up to the tv CRT-(tv tube).This adjustment on of the FBT,HV-SCREEN button will help the tv CRT-(tv tube) last another year or two.

Aug 16, 2011 | RCA TruFlat 27F520T 27" TV

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I have a tube tv. the picture as lines and is blur that goes in and out.

If the lines are colored DIAGONAL lines, they are referred to as "retrace lines," which indicates either that the picture tube bias is set too high, or the brightness level is set too high.. If the blur occurs when the image is particularly bright or a particular color is bright, it is referred to as "blooming." This is caused by either a weak high voltage circuit or because the picture tube bias is set too high.

Is the picture set very bright? Try reducing the brightness control to a level where the retrace lines disappear, and reducing the contrast control below the level where the blooming occurs.

If the television is more than ten years old or has many hours of use, the picture tube may simply be deteriorating normally. By nature, they have a limited life span. Before you decide to throw the set out, if you are technically-inclined, try adjusting the bias and screen drive controls for the television as recommended by the set manufacturer (you didn't specify what make or model the set is), and you may get a few months or years of additional life out of the set.

Jul 05, 2011 | Standard (CRT) Televisions

1 Answer

Hi Guys, I have a JVC 32T55EKS TV & the picture is overly dark. When the picture goes through the set-top box the picture gets even darker. The brightness is turned up fully & I have accessed the...

U turn on the contrast level to the max,if still not watchable,tv cathoray tube is dying,radiaton is disappearing.Time to buy another tv.

Feb 14, 2011 | JVC AV-27230 27" TV

1 Answer

Some channels on my tv are dark and tinted orange, I used the menu button to display the menue and scrolled down to picture but I did not know how to select picture.

Adjust colour control to zero, and check for a pure black/white picture. Adjust contrast and brightness control to minimum and check whether the picture goes completly off or a slight picture prevails. If the picture goes out when you turn down brightness control to 1/3 position, that is about 20 points, your TVs screen voltage is very low, and it can be adjustable. If the picture does not go out and more brightness prevails, screen voltage is high. If the screen voltage is high, there will be some fine lines across the screen at about an inch apart; on the whole screen from top to bottom.
Screen voltage adjustment is critical for the clarity of the picture. If it is low, no proper colour will be dispayed. If it is high, it is harmful to both picture tube and your eyes.
Never try to adjust it without proper knowledge about it. The screen control can be located alongwith the LOT [Line Output Transformer], of your tv. There will have two adjustable controls there, one is for Focus, and the other is for Screen. Both are interactive, that is adjusting one will effect an other.

Oct 18, 2010 | Emerson TS2587D 25" TV

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Samsung HL-R5056


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Tv too bright

This problem might be caused by a problem called blooming. is the picture fuzzy and does the picture look to be streched out. Since you do not have contrast and brightness control this would almost completly point to the HV section of the TV either the control and screen grids of the CRT are going bad or the HV power supply is about to go bad, I would suggest that if you have a background in electronics that you check the HV at the anode of the picture tube and make sure the voltage is from 20Kv to 40Kv using a high voltage probe. You will need a schematic to aid you in your troubleshooting

Nov 07, 2007 | Apex Digital AT2008S 20" TV

2 Answers

Screen too dark even with all brightness settings set to max

The picture is very dark it is mostly due to 1 power supply output is low. 2 voltage on crt g2 pin is low. 3 video output supply is low. 4 some components in luminance section might be defective or loose. 5 finally crt getting weak is set is old. good luck

Sep 21, 2007 | JVC AV-27430 27" TV

1 Answer

JVC AV 270305 Brightness not Bright enough.

Yes you could look for the capacitor that is leaky, probably in the 200v line, or you could just open back and turn up G2 screen control on the Flyback. You have Screen and Focus on this black transformer with a long anode lead going to the picture tube of set. Becareful, High Voltage!

Sep 08, 2007 | JVC AV-27530 27" 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

6 Answers

JVC AV27320 Screen too dark

hi solution #2 was correct. the adjustment knobs r on what's called the "flyback" i adjusted the bottom knob and the difference was from "night to day" !!!

Oct 12, 2006 | JVC AV-27230 27" TV

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