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Screen darkness Screen has been darkening for about the last 3 months. Using the manual video adjustments on the TV or remote has no effect on the darkness. The TV is only about 3 years old, so this is mystifying.

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Just fixed mine.Remove the back of the TV on my model there in a small pwer supply turn the bottom of the two pots this will darken or lighten the screen. Fine tune with the settings on the remote

Posted on Jul 24, 2008

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Posted on Jan 02, 2017

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The screan is too dark while I am watching tv


If a conventional picture tube type set it will have a high voltage transformer inside with a focus and "screen" control--in this case the screen needs to be adjusted up slightly.

Adjustment is inside the set so you have to have back off and be careful as high voltage is present when set is on (need it on to adjust the screen control just up a tiny bit).

10_22_2012_4_03_32_pm.jpg

Oct 21, 2012 | Orion STV2763 27" TV

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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.


Hello
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

1 Answer

Looks like a black thumbprint blocking 1/3 of the screen. No LED's lit on front of TV. Started as black dots, and filled in almost completely. Initial lamp lasted 2 years. The replacement lamp lasted 3...


It looks like DLP chip is failing. It is installed on DMD board that in turn belongs to optical engine. Issue should get progressively worse. If you look at screen up close - you see that "tumbprint" consist of little small dark-gray squares, some of them flickering.
Cheapest solution - to replace DLP chip. instead of replacing whole optical engine.
This repair have to be confirmed (by running test patterns in service mode first) and done by professional.
Repair could cost aroung $400.
During procedure I would recommend to turn ceiling fans and other air blowing devices off. Single little dust speckle landing on the chip surface will ruing all effort and same amount of labor have to be applied yet again just to get rid of it (been there, done it).
Good luck.
Russ.

Apr 06, 2010 | Samsung DLP HL-P5663W 56" TV

1 Answer

1) I own a Quasar TV model# SP 3232A. I have a dark screen but good sound.What are the possible troubles. 2)Is a service manual available for this model


If the screen is dark, then the brightness and contrast adjustment must be poor. Use the MENU key (in the TV or the Remote, either) adjust the brightness and contrast as per your viewing convenience. Service manual for this model is not in my knowledge and you should not try to repair or troubleshoot it by yourself without proper knowledge of the circuit workings inside.

Jan 23, 2009 | Quasar SP-3233 TV

1 Answer

No picture


you may have turned down the screen control
It is the lower one on the flyback transformer
Just advance it enough to get the pix back. If you advance it too much it may get retrace lines in the pix or shut down.
turn very slowly.
Thanks Guy

May 10, 2008 | Sony FD Trinitron WEGA KV-27FS100 27" TV

2 Answers

Sharp 27H-S60 TV problem


Good day.

With regards to the brigthness issue, you can adjust the brightness control of the your unit through the Screen control located along the flyback of your TV.


chris

Feb 28, 2008 | Sharp 27H-S60 TV

1 Answer

Picture tinted green


green tint & screen dark means that there is a problem in green video circuit. 1 check green video supply . 2 components in green video ckt. 3 adjustment in green video section. 4 check for signal to green video.

Sep 16, 2007 | Toshiba 36AF42 36" TV

1 Answer

TV


If you are using cable and the signal is connected to the TV through the regular cable wire, then the TV must be in TV mode to work properly. If you are using a cable box with that TV then the TV must be on channel 3. If the screen shows AV 1, then the TV is in the AV mode (red, white and yellow RCA jacks), and you most likely accidently hit the INPUT button on the remote. Pressing 0 3 or INPUT a couple of times on the remote should bring your picture back.

Aug 09, 2007 | Samsung DynaFlat TX-P2775H 27" TV

1 Answer

Tv is too dark


You didn't say how old your TV is. If it's very old the picture tube could be weak. IF not then there is a screen adjustment on the flyback transformer that you might try to adjust. Sometimes you can access this adjustment without removing the back cover. If you see an adjustment through a hole in the back of the cabinet marked "SCREEN" then you might try turning this control clockwise while watching the picture in a mirror. Only a slight adjustment may be needed. Don't make it too bright or the set may shut down or have small white (retrace) lines in the picture. If you have a projection TV then dust on the three picture tube lenses will darken the picture. These are general statements that apply to different TV's. I assumed that this is a direct view 32 in. TV. Stargazer

Feb 26, 2007 | GE 31GT660 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

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