Question about NEC MultiSync MT830 Multimedia Projector
MT830 suddenly developed vertical color alignment issues. Yellow is trimming everything on their right edge and Blue is trimming everything on the left edge. This is only affecting the vertical edging of objects. The horizontal edges of objects appear to be fine. convergence I think it is acutally the Blue that is off to the Left. I have been through the alignments for vertical with no change. I am able to turn brightness and contrast down to minimize the distinction of the yellow and blue edges, but you can still see them. Thanks for helping!
Posted by Anonymous on
Sometimes a bad cable can produce a delay in signal, if shift is only in horizontal, check cable grounds. Of course, also can be an optical problem, but first check that. And check if the problem occurs with menues (they dont pass througt external cable)
Posted on Apr 09, 2008
I have mitsubishi projector,Model **-LVPS50U. The problem is that lcd panel (R G B) convergance mismatch, So,kindly help me how can i adjust convergance of RGB? I am wating for your reply.
Posted on Mar 09, 2008
Time for a new projector, of course i could sugest a few diferent projectors but i think i will only suggest one since i dont know what your projectors main application is. in my poinion the pk20 LED projector by mitsubishi is a very nice inexpensive projector with a lamp life of over 20,000 hours and costing about the same price as one lamp replacement for most dlp projectors the mitsubishi pk20 LCD projector will last for a very long time and by then there will be a better model available and posibly be less expensive, i have found these projectors advertised from anywhere between $300USD and $700USD at regular retail price but i bet you can get one for less on eBay. GOOD LUCK and BEST WISHES!
Posted on Nov 29, 2007
Take a look here: http://www.extremetech.com/article2/0,1697,1049289,00.asp "... The others, however, have lost portions or all of their blue channels. TI's theory is that the shorter wavelength and higher energy of the blue light apparently causes the organic polarizing material in the LCD to get lightburn much faster. TI showed us a damaged LCD panel that controlled blue light transmission, and there was a large spot in the center that was apparently burned out..."
Posted on Oct 31, 2006
Tips for a great answer:
Problem with Hitachi 51F500 51 in. Rear Projection HDTV-Ready Television
i want to learn how to do convergence on my tv its a hitachi rear projection i have problums with colors not aligning,could you lead me in the right direction ps: i don't have the remote so i
can't magic focus
Posted by ejaparks on Mar 03, 2011
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Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.
Here is an example photo....
Blue should converge on top of "yellow".Bad connection(s)
on blue convergence IC.Replace both IC's for durable repair.
Check pico fuses.Reset convergence alignment.
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Did anyone get anywhere with a fix to adjusting color convergence?
I have an NEC MT1030+ that has a magenta shadow to the left and above objects in the picture. I cannot figure out how to get into the menu that has convergence in it?
I have seen posts on "AVS Forum.com" that talk about NEC projects having a 4digit code to enter after pushing the 'adjust' button. I have neither that button, or numerals to push for a code.
Any help is appreciated.
Does anyone know how to get into the convergence menu's on an NEC MT1030+ ??
I have a magenta shadow to the left and above objects in the image.
I have seen posts on AVSforum.com that suggest pressing the 'adjust' button and a four digit code. I have neither on my remove or projector.
Any help is appreciated!
Hi, I have a similar problem with my LT 158 but the other way around - yellow to the left and blue to the right. Did you manage to get your problem sorted? If so I'd like to hear how to do it if possible.
hi i have a problem that wen i replace the lcds of the prjectors MT1050 and MT1040 from the brand known as Nec i dunn get the perfect result my profession is to do so but i dunn get the required and satisfying result is there a software or a method of doin this act perfectly ??
thanks in anticipation
plz if any one of the visitors reads this and noes the solution to this reply me on this email adress
Where are the adjustments on the main video board of the projector for alignment of the three LCD screens,