I own a 5 year old toshiba cinema series 65 rear projection tv. this morning I noticed that the picture appears to be bowed in from both sides and I see more blue on the left side and more red on the right side. Nothing occured near the television to cause this.
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Re: 65 Toshiba picture sides are bowing in.
Convergence amp ic bad http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html http://www.hdtvoice.com/voice/showthread.php?t=28929 Or send to ptscorp.com http://www.hdtvoice.com/voice/index.php?s= good luck
please mark the post with a fixya
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if a large rear projection set that just says HD, it likely is HD ready which means it needs a set top box connected to the Colorstream input marked 1080 on the rear of the set--It will only likely be 1080i and not p---owner manual would confirm this.
projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.
Common Problem #1) Convergence has gone out
Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.
This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.
Common Symptoms include....
Screen looks 3D
Colors don't line up
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed or warped.
TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.
Common Problem #2) CRT Fluid is Cloudy
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.
You do not have individual lamps in that model. You have 3 individual picture tubes of which I don't believe they are bad. They have fluid in a reservoir that becomes cloudy after time and needs to be replaced, however this is something you cannot do yourself. I recommend you call a qualified technician to take care of it for you.
It will be 11 years next month that I've had my Toshiba 55H55 Cinema Series and have the same problem every now and then, if you haven't already done so, go to the picture settings and scrolling down to conversion and it will take you through 3 steps of adjustments,there is a white cross in the middle of the screen line up the red first and then the blue, it will then take you to a screen with numbers, ID the clearest number and exit out, you should have a clear picture again. I hope this helps.
If you wish to get some details; visit the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Convergence adjustment procedure to many brands of projection TVs are given in detail.
You will need to trouble shoot the start up and shutdown circuits. Often this is a minor component failing causing the set to not power up or go into protective shutdown. Do you have the service manual for this TV?