Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television
I have a Samsung HC-P4752W rear projection TV that i purchased as Sam's club a couple of years ago. I have had some odd problems that might be related. The first thing is the auto focus doesn't work very well. I've noticed that with using a DVD player on the AV input, the convergence is sometimes really bad. For example, the lower right might be close but the upper left would really off. Eventually it will look okay if you force it to auto focus multiple times. Sometimes it fails and says to turn down the lights and try again. That message would appear even when the room was dark. Usually all you had to do was try the autofocus again. 2nd problem is every once in a while the tv will just shut off by itself. The only solution is to unplug it and plug it back in. It doesn't happen that often but enough to be worried that something is wrong. Lastly, which is the reason i'm submitting this problem is last night i turned the TV on and the blue was all messed up. The bottom 1/2 of the tv was okay but the top 1/2 was curved (or bowed) in the center. If you are viewing a completely blue screen, there is a black curve or semi-circle at the top. Or, if you watch credits scrolling on the screen with white type on a black background, about 1/2 way up the screen the blue starts to separate from the white letters and the blue only makes it up about 3/4 of the screen in the middle (due to the curve down). Hope i'm explaining this okay. Anyway, the first thing i was thinking of trying is replacing the convergence module and seeing if that fixes it. Would that be the correct course to follow? My thinking is all those problems could be related to a failing convergence module. thanks for any suggestions! p.s. is there anyway to do a manual focus instead of the auto focus?
Add select under the cover on the remote saves convergence settings but you have to save all three colors seperately, mute 183 takes you to the convergence service menu and 1 is factory 2 is something and 3 is last setting 7 is red 8 is green and 9 is blue you have to hit add/delete on each color and the screen should say data saved
Posted on Mar 18, 2008
You can replace the whole board, or opt to replace just the 2 IC's and a resistor or 2 that has probably failed. Lift the chassis & inspect the pins of the 2 IC convergence chips for hair line cracks around them. Inspect the small resistors out in front of the IC's for discoloring or burnt look compared to other similar resistors. The convergence board will cost much more than having the above repaced. Chips about fifeteen a piece, resisters .50 cents each plus shipping. Convergence board $100 plus.
Posted on Jul 26, 2007
Mute 1 8 3 on the remote gets into the service menu on the 4752 samsung. I havent figured out how to get congergence settings to save from teh service menu. Pressing "enter" on the remote is supposed to save the settings, but doesn't appear to. Once you exit the service menu and go back in the convergence is back to it's starting location.
Posted on Sep 19, 2007
I have samsung hc-p4752w 47 in. rear projection and it have a blue line in center
Posted on Jun 03, 2009
When using the remote you have to hold enter till it says data saved.
Posted on Nov 04, 2008
I have the same problem but I don't see an add/delete button. Where is it?
Posted on Sep 12, 2008
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Posted on Jan 02, 2017
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