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Sediment Only In Blue and Green Projectors The sediment you speak of could be a few causes. Dust collecting on the lens of the tubes or possibly, mold growing in the …CRT cooling fluid. Then again, sometimes the rear of the projection screen will collect dust and cobwebs, etc.
Cause of Weak Picture Could be anything from a poor adjustment of the user's menu settings to something more severe. Need a lot more info before it can be answered co…rrectly.
If you have something other than a TV with a standard cathode ray picture tube, skip to near the end and the part about calling a repair shop. Plasma and LCD sets usually don'…t fail like that. Yes, they can fail electronically like any of the older TVs, but it takes a tech to sort it out. It isn't like changing an alternator in a truck. If your TV has a blue and green picture (with red missing), the red gun in the picture tube (CRT) has a problem. It could be in the CRT itself, or it could be in the support circuitry (the red drive). Though it is possible that the CRT has a problem (and the picture tube isn't really "repairable" like a fault on the board may be), the problem is more likely in the red drive itself. Any way you cut it, if may be a touch expensive to fix it. Call a shop or two and ask about their estimate policy. (Have your set's model and serial number handy, and a chassis number if it is on the manufacturer's label on the set. Do your homework before you call.) Describe your problem and see what carry in or home service costs. The shops take calls like this all the time. It's their job, and they welcome the calls. You have lost your red gun (because the CRT failed or the red drive failed). See what they say. There is probably little to nothing you can do to fix it yourself. Repairing a drive circuit in a television isn't like rewiring a lamp. Smaller shops may work a deal with you if you ask. Do you have anything to trade for the service or to couple with cash for a repair? These can be heartbreakers at times. Good luck sorting this one out.
Have you tried adjusting the settings on your tv like the contrast/tint/etc.? It might be a bad picture tube in which case you may need to get a new tv but without more detail…s it's hard to know for sure what's going on.
Furniture pads and properly secure the TV in the truck by using the tie down rails. If you're just moving it from one side of the room to another, furniture moving pad…s are probably the best.
Very carefully, and don't rush it! If possible, remove external attached speakers, or any other items which may make the TV lighter. If possible, attach padding to the… corners of the TV, in case you bump into walls. Isn't this obvious ?!
This will depend on your specific brand and model. Most models will allow you to pull up the convergene menu by using the original remote. Once is displayed on the screen you …can try to fix it. Note: I you are not able to move one or more colors in any direction your convergece chips have failed . If the convergence is slightly off try running the manual convergence instead of using magic foucus. 1) Turn the TV on 2) Press Magic Focus to begin magic focus 3) Press magic focus again during the magic focus process to get the "stop" screen 4) While stop screen is up, press STATUS or INFO on the remote control (R/C) to bring you to DCAM mode and the service grid 5) When you first get in here? I believe red is the selected color by default (it is flashing). 6) To choose other colors to converge, use the following buttons on the R/C: a) "STATUS" - Green b) "0" - Red c) "ANT" - Blue 7) Start from the center of the screen and work your way out on one color at a time. I adjusted red across the whole screen to match green. Then I switched to blue, and adjusted that to green as well. After you adjust blue, you may want to go back and adjust some red again? etc. until the convergence looks good. (a) Use 4, 6, 2, and 5 on the R/C to move the cursor position(dotted lines). (b) Use thumb stick to move the convergence point color.
I have found Mittsubishi Come Apart From the Front, Remove Speaker cover pulling out to you, then remove the screws under channel,volume switches accros lower facia, Remove th…e center board between speakers, lift screen up toward your ceiling NOTE: there are 2 side pins on the TV wood Case, and 3 Flex Lock Grab Anchors across the top top of the PlexiGlass Frame, Plexi Glass Will BREAK if you bend or drop hammer on" YOU R SCREWED" ....use a Glass Clean Like you do on the Bath Room Mirror and then spary on nice soft towel and clean the Lens, I remove the rear dust panel and blow out all the dust first before cleaning any mirrors,lens....with a shop vac use a new Pain brush and wipe down the Circut boards and Fuses and TV Case ect....Moisture loves dust and electricity loves to ground though moisture so take your time and the paint brush will help move the dust up of the Circutry....after you are done take and blow off your mirror and lens last then wipe lens before your button her up, magnovx Phillips ect come apart from the rear and the mirror come out of some....Have Fun Keep Smiling Merry Christ-mas ...Happy Birthday JESUS" ....Our Wonderful Lord and Savior
Sometimes this will happen if you are using a coaxial cable on the antenna and there is a broken connector or even a cut in the cable somewhere.
1947, although practical units with pictures bright enough to be seen during the day appeared in the mid 1970's.
Red, green and blue light sources like a digital front projector make up the image and each path of light bounces off a mirror. After they bounce off the mirror, they hit a sc…reen that shows the light in fine vertical lines. Since the light travels roughly 4.5 feet before hitting the screen, the screen can be big but is slightly fuzzy. The mask gives the TV a bad viewing angle. They were the first kind of TV to go above 40 inches in diagonal size and under 18 inches in length/depth. The projector is under the screen, so they are big, and often times have big speaker systems embedded inside. All that means rear projection TVs are made for greater viewing distances.
A rear projector tv is useful for a better quality of the image, a bigger group of people watching TV in a bigger room. Also is very interesting to create a cinema effect in y…our own house.
amazon.com sells almost everything, including rear projection tvs. They do not have a very large selection and it would probably be in your best interest to go into a smaller …store with support staff more readily available to ask questions.
The vertical hold needs adjusting, or the sync pulse is missing or corrupted by interference. Or a fault in the sync separator circuit. It must be an old telly, modern ones ar…e controlled by inbuilt computers.
Rear-projection technology allows for large displays; rear-projection televisions range from 42" to 80" on the diagonal. Furthermore, rear-projection televisions are comparabl…y less expensive than similarly sized plasma televisions. The rear-projection television is also very simple to set up, as no drywall work is required.
Samsung's 63-inch PN63B550 was the largest rear-projection Tv on the market.