Question about Sharp Televison & Video

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I have an old Sharp flat-tube tv. The picture is bad, it's very dim even though the brightness setting is all the way up.

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  • Contributor
  • 31 Answers

If the "contrast" is also turned up, then, the tube is toast and needs replacement. A local repair shop can quote you so you can determine if it's cheaper to purchase a new t.v. or not.

Posted on May 09, 2014

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Posted on Jan 02, 2017

SOURCE: Bright white horizontal stripes - Symphonic 27

YOUR brightness on the high voltage block is too high...turn it down

Posted on Jun 27, 2008

  • 1 Answer

SOURCE: TV No Picture

My 32D40U would turn on for 5-10 seconds (Please Wait would appear) and the screen would go black. Sound Normal. It would also sometimes do this after running 5-10 minutes. I read somewhere that the inverter board would come loose and lose proper ground. I took the set apart, removed the board, and cleaned up the grounding points. I reassembled using some copper paste on the ground points and LockTite on the screws. I used some contact cleaner on all the connectors going to the board. I noticed two cables that are covered with copper shield tape where too tight at their connectors and repositioned the tape to give them some slack. The problem hasn't occurred since the fix.

Posted on Mar 22, 2008

dsacco86
  • 1077 Answers

SOURCE: My Sharp TV will only hear sound. No picture or images even from the tv menu setup option. Model# LC-19SB25U. About 1.5 yrs old. Converter box ok.

In most cases, you can reset the TV by leaving it unplugged for 30mins.
If this doesn't work, I believe the circuit board that supplies power to the screen maybe bad. They call this board a backlight inverter board. It would most likely cost more to repair than replace the TV .

Posted on May 27, 2009

  • 197 Answers

SOURCE: sony bravia 46 lcd The picture dims and

set has a light sensor. go in menu and turn light sensor off

Posted on Jul 02, 2009

DrewPalmer04
  • 325 Answers

SOURCE: Hitachi 50V710 The picture is dim,

I've seen this in two scenarios.


First: The housing of the bulb is dirty (the lens the bulb lights onto) and the internal screen is dirty also.


The second: The bulb is wired reversely of the proper way to wire it. This will light the bulb, but will not light as bright as when it is wired correctly!


Thank you and please rate!

Posted on Apr 08, 2011

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I have a Samsung 55in curved TV. It has auto dimming. In the evening with the lights out it dims to where it is difficult to see the picture. Can I get rid of the auto dimming?


If the brightness on your TV changes automatically (randomly dims and brightens), you may need to adjust the:
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My Samsung DLP HD tv's picture is starting to go dim. What can I do to make the picture bright like it used to be. Model Code - HLS6187WX Thank you for any help you can provide. Spencer


Has the lamp ever been replaced? As lamps age they get darker screens. First though check to make sure the TV settings aren't accidentally on a dark setting. Go into the menu and see if increasing the brightness helps.Different picture modes like movie, games, vivid have different brightness settings vivid usually the brightest.

Sep 11, 2010 | Samsung Televison & Video

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The screen on my big screen is black it still works i can hear the tv but just cant see the pictures


Hi,

If all the following apply to your set:

(1) Adjusting the brightness and seeing that video is present (just black)

(2) The TV's menu system is visible on screen even though no images are

(3) Your particular SHARP model supports picture in picture mode

Then I suspect that the problem is your TV's picture-in-picture sub-board. All external video sources & the internal tuners must pass through this board before being processed and displayed on the picture tube (even when PIP is not enabled). As far as I am aware SHARP does not provide this board as a spare part anymore, but they can be repaired at the component level if the failed component is a generally available device.

Regards

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1 Answer

The picture is really dark even though I have the brightness set to a hundred percent


brightness isn't brightness, its technically called white level, as for the fault, probably a power supply issue, also turn the brightness down as having it set to high can cause long term damage to the tube.

Apr 18, 2010 | Hitachi 43FDX01B TV

5 Answers

My Sharp LC32D40U went black yesterday, I can still hear the speakers but no image


I have the same model 3yrs old. Your problem is a loose contact on a circuit board. Unplug the tv and remove the back cover. Remove the circuit board on the opposite side of the input plug. Clean the mating surface of the circuit board and the mount, reinstall the circuit board and tighten the screws. This is where the lost contact is occuring. Reinstall the back cover. Thats it. good luck and happy watching.

Apr 17, 2010 | Sharp Aquos LC-32D40U Television

1 Answer

Get sound but no picture


Test: You might see a pic by shining a bright light against the screen. (Halogen can burn a spot if too close for too long like 15 seconds). If so, you probably have an inverter, backlight tube or coil/driver board problem. Some of these units have a bad ground on the tube driver coil board which can be shimmed and/or tightened. Sometimes a simple car light tester (continuity tester with a 12v bulb) from casing/mount ground to any of the negative (upper usually) side of the backlight driver coils will light the screen and reveal if and which tube is non functional. I leave one dome light running in such ground position one of my TVs at all times for regulation and night dimming.

Apr 01, 2010 | Sharp LC52SB55U LCD TV

1 Answer

No picture only sound


Test: You might see a pic by shining a bright light against the screen. (Halogen can burn a spot if too close for too long like 15 seconds). If so, you probably have an inverter, backlight tube or coil/driver board problem. Some of these units have a bad ground on the tube driver coil board which can be shimmed and/or tightened. Sometimes a simple car light tester (continuity tester with a 12v bulb) from casing/mount ground to any of the negative (upper usually) side of the backlight driver coils will light the screen and reveal if and which tube is non functional. I leave one dome light running in such ground position one of my TVs at all times for regulation and night dimming.

Dec 31, 2009 | Sharp LC-19SB15U LCD TV

1 Answer

TV Screen Dims during dark Scenes


Most likely you have the opc feture on. go to the menu under picture setting first option should be to turn on or off the opc. turn it of and should solve the problem.

Mar 18, 2009 | Sharp Televison & Video

1 Answer

Dim picture


change ur backlight ccfl lamp

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