The Picture is dark red on my TV, and when I change the color temp it becomes green and then to no picture at all. But I can see that the backlight is on as you have that light tint in the background. The only thing I can think is wrong is the LCD controller, I was wondering if I am right. Thanks in advance.
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If it's a old style projection screen pry off front grid, you,ll see a trapezoidal mirror this often becomes hazed smoke, dirt, ect. Make sure set is unplugged DO NOT ASSUME THEIR IS NO SHOCK HAZZARD BECAUSE SET IS UNPLUGGED(see capacitors) be careful and clean mirror with damp cloth and glass cleaner try not to spray as safety percotion, their are 3 tubes red , green, blue, green is th dominaent color if you know how turn blue HVU UP 1st( CLEAN picture tube lens 1st) These type of picture tube have clear poly glycol ( anti freeze) in lens unit to cool and is part of the optical system. I this fluid becomes contaminated then cost of repair may exceed value of unit, then increase red value I just thought you may bee able to do the color via menu not sure, if picture has a green tent at start this should help good luck , lot me know what you see.
I am afraid your problem is a little technical. Well if you know something about lcd tv technicals, the problem seems to be the T Con board and/or its connectors. Check the ribbon cables and connectors, clean them properly and and start the tv.If it is not possible or it does not work, please consult someone qualified to handle your set. Good luck.
Hi: 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.
Normal color picture is composed with 3 colors R-G-B (Red-Green-Blue). Picture turns Red means: Missing Green and Blue colors (many reasons: bad contacts, projector tubes dead, and other...). Try to give some "tabs" to diagnose ... I don't know what is the type of your Projection TV, how long you owned it, to have more idea.
Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.
Picture Mode: Expert1
Fresh Contrast: Off
Noise Reduction: Medium
Black Level: Low
Real Cinema: On
Color Standard: HD (N/A w/HDMI)
White Balance: Warm
**Method: 10-Point IRE
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
First you can up the screen voltage, by finding the HV transformer. It has Screen and Focus control on it this it the Transformer that is in back of set and has an anode lead going to Picture tube. Come up on the screen control slowly and if the picture brightens with vertical lines then it's too high, The red problem is a small transistor that maybe located on the CRT board. It's probably shorted. There are about 3, each going to the different colors Red, Blue, Green.
Open up the front of the set and find the screen controls and perform a grey scal alighnment by adjusting the red , blue , and green screen controls but be carefull and make sure you adjust them evenly or the picture will not look right. Good Luck