Question about Sharp Aquos LC-32D40U Television

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Vertical bar have a vertical bar about 1" thick. always there. not a specific color, just not as bright or dark as area around it. also, have been unable to track down the service manual

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Re: vertical bar

Horizontal deflection problem. Usually a chip in horizontal circuitry or cold solder. Tap on set and see if bar goes away. If so, it's a cold joint. If not, chip is bad or associated circuitry, or the flyback could need resoldering or the H.O.T could be leaking from emitter to collector. keever

Posted on Mar 06, 2008

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Contrast really dark but seems to improve after the tv has been on several hours

You may have a problem with the inverters in the unit, they are responsible for lighting up the back panel. Check or have checked the power supply voltage to the inverters, should be around 18-24 volts DC. Also leaky capacitors on the power supply will cause this issue as well as leaky or puffy capacitors on the inverter.

Sep 08, 2011 | LG 32LG30 32 in. LCD HDTV

1 Answer

Picture has too much blue, and picture is dark

Go to your TV MENU (you can find the button on the remote or on the TV itself)
Go to PICTURE SETTINGS- here you will find color settings and brightness settings
Go to COLOR SETTINGS and just adjust the bars until the picture on the screen is the right color.
Go back and click on BRIGHTNESS- here you can adjust the bar to make it brighter and easier to see your picture.
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May 23, 2011 | Flat Panel Televisions

1 Answer

The screen has colored vertical lines and becomes to a dark black band about 6 inches of width.The tv is exactly two years old by today.

My 3-year old 52-inch Toshiba flat panel TV (Model # 52RV53U, Serial # AM409000295) developed a display problem (purchased Aug. 2008, manufactured July 2008). Vertical multicolored lines appeared on the screen just left of center. The band of thin vertical bars is 5.5 inches wide. The lines are about 1/16-inch wide. They are stationary, always exactly in same place. They over-ride any other picture on the screen (no transparency). They are there all time even with no video inputs to the TV after the unit is turned on. See picture #1. The TV works well in every other respect, but, obviously, it is annoying to watch the picture with the color band blocking about 1/6 of the picture.

Further info, pics, comments, and updates on my Facebook page at

I already swapped out the TCON board with no improvement and replugged the TCON board cables with no improvement.

Most likely it is the flat panel tab bond failure (panel made by Samsung). Further solution updates will be on my Facebook page.

Apr 11, 2011 | Toshiba REGZA 52RV530U LCD TV

1 Answer

42 inch toshiba\r\n tv screen

Dark picture. I adjusted brightness, but it keeps getting dark. It has vertical lines that can be seen in grey areas on the screen.

Dec 08, 2010 | Toshiba Regza 42RV535U 42 in. LCD HDTV

1 Answer

Sony bravia kdl 32l4000 - color bars running vertically on screen

In most cases is the screen is covered with vertical lines all the way accross the screen then the T-Con module is at fault. The t-con board is replaceable without having to replace the entire LCD panel which would usually make it cheaper than replacing the TV. The part number I come up with is 1-857-213-11. Please take a moment to rate my answer. Thanks...

Dec 02, 2009 | Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

1 Answer

Dont know the contrast ratio of this tv

Panel Type: 32" Diagonal (31.5" Viewable), 16:9 Wide Screen, Color TFT Active Matrix LCD
Panel Specifications: Anti-Static and hard coated surface
Pixel/Dot Pitch: 0.507mm (H) x 0.5107mm (V)
Display Compatibility: HDTV (1080i)
Signal Compatibility: 80i (SDTV), 480P (EDTV), 720P (HDTV), 1080i (HDTV)
Response Time: 8 ms (typical)
Colors: 8 bit 16.77 Million colors
Brightness: 500 cd/m2
Contrast Ratio: 5500:1 Dynamic Contrast Ratio
Viewable Angle: 178° (horizontal and vertical)

May 23, 2009 | Vizio VW32L 32 in. LCD HDTV

1 Answer

Ideal settings for Samsung LN-T 4234H

sure, lcd tvs need to be tweeked depending on the light in the room the darker the worse the picture. so try this
from standard:
picture: 85 to 95 %
brightness: 45% or adjust the black of the video to the black of the pilar bars to equilize them.
color: 32 to 38% or until the flesh tones are not so hot
sharpness: low 10%
tint: always to center
color temp: cool1
back lamp ( if avalible) low when lights are dim, high when lights are bright.
the problem with LCD is they don't look so good with dark sceens. the contast ratio is very low. natively 3000:1 aas compaired to plasma or other direct view TVs. the LCD is back lite and the thin materal of the LCD can not completely block the back light from coming thru. there for the complete "black screen" is illuminated "blue". the best thing is to keep the lights on bright in the room for the best picture.

Feb 22, 2008 | Samsung LNT3242H Television

1 Answer

Vertical portion pixelats then forms solid vertical lines. Problem intermitent but persistant. The tv is 2 years old, if its the lcd panel is it worth repairing? I think I have the same problem with a...

In some cases, there are minor defects in some parts of the screen. Points that do not light, points with
brightness different from that of the periphery, or points with color different from that of the periphery.
Some pixels will always be on or always off. Please note that this is not a malfunction. So what this says is that it's not the Plasma Cell problem, its more like a bad board inside. You will need more info like schematic and find out which area the bad part is in.

Jan 04, 2008 | JVC PD-42WX84 42 in. HD-Ready Plasma...

1 Answer

Cable question

Make sure your refresh rate is set no more than 60HZ. Your monitor might not support refresh rates higher than that.Also try lower resolutions.
Here is a list of specs: (also try another cable)
  • Olevia LT23HVX 23-inch HDTV Compatible Widescreen LCD TV

  • General Features:
  • Black cabinet
  • 23-inch active screen size
  • 16:9 widescreen aspect ratio
  • HDTV Compatible
  • 1366 x 768 native resolution
  • 1600:1 contrast ratio
  • 8 ms response time
  • 178° horizontal and vertical viewing angle
  • NTSC TV system support
  • 480i, 480p resolution support
  • Progressive scan
  • Color temperature adjustment
  • Built-in 5 watt x 2 speakers
  • PC resolution support up to 1024 x 768 @ 60Hz
  • English/French/Spanish language
  • Sleep Timer
  • V-Chip parental control
  • Energy Star compliant
  • Remote control included
  • Wall mountable

  • Front Panel Features:
  • IR sensor
  • Power
  • Menu
  • Channel down
  • Channel up
  • Volume +
  • Volume -
  • Source

  • Rear Panel Features:
  • 15-pin VGA
  • Audio in
  • Headphone
  • Component Y, Pb/Cb, Pr/Cr
  • Composite RCA video inputs
  • S-Video
  • Antenna

  • Power Specifications:
  • 100-240V, 50/60Hz, 2.5A (max)
  • 110 watts AC power consumption

  • Unit Dimensions:
  • 16.5 x 27.1 x 8.3-inches (H x W x D)
  • Gross Weight: 23 lbs
  • Net Weight: 21 lbs

  • Regulatory Approvals:
  • FCC
  • CSA
  • UL
Package Includes:
  • Olevia LT23HVX 23-inch HDTV Compatible Widescreen LCD TV
  • Quick Start Guide
  • Manual
  • Remote control w/two AA batteries
  • Power cord
Additional Information:
  • Notes
  • Model: LT23HVX
  • Product Requirements:
  • Satellite cable or antenna
  • PC with 15-pin VGA adapter
  • Stereo system with component, S-Video and composite jacks
  • Available power outlet

  • Disclosures:
  • LCD displays may have cosmetic imperfections that appear as small bright or dark spots. This is common to all LCD displays used in products by all vendor and is not specific to any vendor or brand. Below are the acceptable amounts of "dot defects" for LCD displays that we sell:
  • 20-Inch to 23-Inch:
  • Total Defects: 8
  • Bright or Dark Dots (random): 4
  • Bright or Dark Dots (2 adjacent): 2
  • Bright or Dark Dots (3 adjacent): 0
  • Minimum distance between defects: 15mm (bright to bright dots)
  • Minimum distance between defects: 5mm (dark to dark dots)

  • Disclosures:
  • Consumer Notice:
  • This television receiver has only an analog broadcast tuner and will require a converter box after February 17, 2009, to receive over-the-air broadcasts with an antenna because of the Nation’s transition to digital broadcasting. Analog-only TVs should continue to work as before with cable and satellite TV services, gaming consoles, VCRs, DVD players, and similar products. For more information, call the Federal Communications Commission at 1-888-225-5322 (TTY: 1-888-835-5322) or visit the Commission’s digital television website at:

Nov 29, 2007 | Olevia LT23HVX 23 in. LCD Television

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