Watching tv yesterday, suddenly pic became three images and blue is way off kilter/ angled downward. Tried manual convergence and could move red, but not blue. Perfect focus would not go beyond 4% after several tries as well. Manual convergence screen displays the little plus marks being way off level at all edges of screen. Sounds like from postings that the convergence module is bad?? Also noticed recently that at at very infrequent times the color would go out of whack for a moment or two while showing a sort of light crosshatch on screen then return to normal. Board time??
Hello, I am having a convergence problem I believe. The red is dipping down and out of alignment. When I attempt to realign the red it will not do it properly and usually just makes it worse. The other two *blue and green* seem to be find as the picture looks good across the middle of the screen because red is Barely off at the middle. Does this sound like a convergence board problem?
Yes it has power supply and convergence problem let me know if you need help with part # s or how to fix it
A
projection television and a convergence control method thereof are
provided. The projection television, which magnifies images displayed
on cathode ray tubes (CRTs) for the colors red, green, and blue using
lenses and projects the magnified images onto a screen, includes a
convergence control apparatus capable of adjusting the convergence
while an input image signal is displayed, the convergence control
apparatus including: an image signal decoder which processes the input
image signal to generate a data signal, horizontal and vertical
synchronous signals, and a start signal indicating the start of either
the horizontal or vertical synchronous signal; a convergence control
unit which normally projects an image signal output from the image
signal decoder onto the screen and performs convergence control using a
predetermined region of the screen displaced from a visible region of
the screen according to a convergence control command; and a main
microcomputer which inputs the convergence control command to the
convergence control unit when the start signal is input from the image
signal decoder, stops the convergence control when a completion signal
is input from the convergence control unit, and performs a control
operation to continuously display the image signal during the
convergence control.174 views
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Thanks, from what I read the convergence board is a problem child. The board and not the module is what typically fails I guesa based upon all of the postings.I have found the convergence board on partsolver for about 82.00 plus shipping. I work with electrical and electronic devices in my daily work, so should be able to make the swap myself. Any other tips I need to know? Thanks again for the speedy reply to my posting!
Thanks for the tips... I have ordered the part from Partstore.com and expect the new board in the next few days. I have found out about how to access the convergence screens using the mute button and number keys. I will let you know when I get ready to realign the screen upon board installation. Thanks again for the continued support - much appreciated!! Have a great day!
have bought a new convergence board for a Samsung PCL545R installed it
i can line up the blue convergence with no problem but the red does nothing at all. Any suggestions would be greatly appreciated.
I was watching the TV then all of a sudden the red jumped out of alignment. Despite countless attempts to execute "perfect focus" and attempt a manual convergence, the red is way out.
What's my best plan of attack?
Thanks,
Brad
I have ordered the new board, installed it, and tweaked however it's still not back to perfect. It's WAY better than before but it seems out of alignment between the cross hairs.
The top middle cross hair appears to be 'twisted' and I am unsure how to get it to ligh up properly. It seems I am very close but I am missing this last ingredient. Any ideas?
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