InFocus LP240 The Grreen overshadows everything. It is the background colour and if you turn the colour down to try and get black and white NOOOO way. There are three [square plastic on tin' little plastic filter
colours andif you cover the green then you see purple screen. Need manual to find the correct names for the parts around the lenses
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The tubes have aged and the colour balance between the tubes has shifted. You will need to redo it using a black/white test image: first the black (the cutoff point), then the white (the gain) on each tube - always start with the green colour. This is done on the final video amplifier of each tube by adjusting the corresponding semiadjustable resistors.
simple. easy. you have 3 screen adjustments. red green blue. turn color all the way down. you should then get just a black and white picture, but in your case, it will still be reddish. behind the speaker grill is an access panel for screen adjustment. remove speaker grill. remove access panel. you will see a block assembly roughly 6 inches square with 6 knobs on it. 3 are for screen, 3 are for focus. adjust until you have a black and white picture. then go into menu and turn your color back up. enjoy!
Check the menu set up of the TV. There should be an alignment feature that aligns the blue, red, and green colour projectors. If the blue is out of alignment that is likely why you can see it on the dark backgrounds.
The set up normally puts a white cross on the screen and you select each of these colours and then move the cross over the white on with the arrows on your remote. Once all are aligned correctly you shouldn't be able to distinguish between different colours and hopefully this should get rid of your blue shade.
It may be the lamp is out. Normally a projector will try & fire the lamp 3-5 times then shut down with a different color light like amber or red. If the lamp doesn't light then it could be the lamp or perhaps the lamp ballast that starts the lamp has failed. A stuck fan also causes similar symptoms. There's 2-4 fans in the projector if one is stuck or bad it will turn off within 5 seconds or so after the lamp lights.
Does your lamp light at all? Are the lights a different color after it shuts down? Answers to these questions help figure out what's wrong though it's impossible to say for sure without looking at it. I service almost all Infocus projectors if you would like a quote please reply with your email address or write me at email@example.com
turn your color all the way down and observe the black and white, contrast and grays . should be crisp. if sorted looks still like blurry grays with little contrast...... your problem lies in the video processing circuit.
sounds to me like the red colour is turned up to high try turning the red colour down in settings if that dont work you will have to find the pot that controlls the red colour and turn it down manualy.cheers darkside
What you do is first get into tube lenses and wipe them clean.
Then turn down the colour to black and white.
The simplest way to adjust the three separate colours is to get to the hv splitter box and adjust every screen pot until you get a black and white pic.
Then turn your colour back up and you should see a good result.
Caps being burned. caps usually go bad or explode because of to much voltage, was it hit by lighting? But you say the fuse is ok... I would look for voltage regualtors or resister type fuses that are blown. you might want to check with ptscorp.com to see if you can send in the power supply.