Dark tv picture

I would open it first and look, a lot of those had both the screen and drive controls on the PCB at the end of the picture tube, at least look there first.

You are dead on in looking for the screen controls, if you find one it should only be a tiny adjustment due to age and the Crt changing a bit.

I have a older 2006 SXRD rear projection TV. I had the same problem after the TV warmed up this yellow tint started in the corner and crawled its way down the TV. It turned out that Sony had a recall on the optic block of the TV. If you replaced the Lamp and adjusted the color this kinda sounds like the same problem. Here is a link explaining it. In this article it shows up as a green haze and blob, but in my TV it manifested as a yellow tint.
http://www.avsforum.com/avs-vb/showthread.php?t=1086180

It is one of two things the picture tube is bad and the green emission is very low or the green gun is open, the second possibility is the video driver or output is shorted on the video board "plugged in the back of the picture tube"

i think is the blue mirror in side the tv...it has 4 mirrors inside

Picture Menu
Picture Mode: Expert1
*Backlight: 16
*Contrast: 83
*Brightness: 53
Sharpness: 50
*Color: 55
*Tint: 0
Expert Control

• Fresh Contrast: Off
• Noise Reduction: Medium
• Gamma: Medium
• Black Level: Low
• Real Cinema: On
• TruMotion: Low
• Color Standard: HD (N/A w/HDMI)
• White Balance: Warm
• **Method: 10-Point IRE
  • 10 IRE
    • **Red: 1
    • **Green: 2
    • **Blue: -16
  • 20 IRE
    • **Red: -6
    • **Green: 0
    • **Blue: -7
  • 30 IRE
    • **Red: -5
    • **Green: 0
    • **Blue: -4
  • 40 IRE
    • **Red: -8
    • **Green: 0
    • **Blue: -4
  • 50 IRE
    • **Red: -4
    • **Green: 4
    • **Blue: -4
  • 60 IRE
    • **Red: -6
    • **Green: 6
    • **Blue: -5
  • 70 IRE
    • **Red: -8
    • **Green: 3
    • **Blue: -10
  • 80 IRE
    • **Red: -8
    • **Green: 7
    • **Blue: -16
  • 90 IRE
    • **Red: -9
    • **Green: 5
    • **Blue: -18
  • 100 IRE
    • **Red: -10
    • **Green: 4
    • **Blue: -9

Color Management System

• Red Color: 0
• Red Tint: 0
• Green Color: 0
• Green Tint: -15
• Blue Color: 0
• Blue Tint: 11
• Yellow Color: 15
• Yellow Tint: 2
• Cyan Color: -15
• Cyan Tint: 0
• Magenta Color: 0
• Magenta Tint: -1

lg70 nice tv excellent processor just to bad there is no intensity control on color management oh well still better than what the three s are pushing block out the hype lg will be number 1 in a few years haters are starting to come around and well leds coming,

p.s. i dont work for lg just tired of losers bashing stuff because they dont own it.
im isf certified those settings are right on the money straighter than a ruler

toni, you`ll need a tv tech for this problem, spark gaps need to be cleaned, crt sockets need to be cleaned and crt pins on all 3 crt`s need to be sanded, this is a common issue with this model set, good luck, BMW Rider

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.

Most TVs of that caliber have a life expectancy of about ten years.. In 2009 we'll be passing into the HD era and that Tv won't work without a little help from an HD converter. What you're describing sounds like some transistor problems on the crt board and possibly voltage regulation. Not too expensive for a reputable shop, but my best advice would be to get an estimate first. If you need help finding a reputable shop contact NESDA, (National Electronic Service Dealer's Assn.) they should be able to direct you to a member's shop in your area. Its like going to the AMA to find a doctor. If the cost is more than half the cost of buying new - get a new one... Good Luck Bill

The green gun in your picture tube is set a little too high. If you are experienced in removing the back cover of TV's,etc., you may try to find the drive and/or bias controls either on the circuit board that plugs on to the neck of the picture tube or mounted on the main circuit board of your TV. These controls are usually labeled. If you can find them, locate the green bias or drive control and back it down a little while watching the picture through a mirror. A slight adjustment may correct your problem.tJIS IS CALLED GRAY SCALE ADJUSTMENT. BE CAREFUL THERE ARE SOME HIGH VOLTAGE CIRCUITS NEARBY. WORK WITH ONE HAND AND USE AN INSULATED TOOL TO MAKE ADJUSTMENTS I hope this may help you.AGAIN BE CAREFUL!! Stargazer

convergance ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm