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Samsung hc-p4752w crt projection tv

Color convergance went out off alignment as if the degaussing circuit failed. I can't find a schematic for this unit.

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I found the manual for you tv here.
http://www.usersmanualguide.com/samsung/tv__projection
Sergio

Posted on Mar 15, 2008

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Please visit this page..

register for free and get the schematics...

Posted on Mar 15, 2008

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1 Answer

Picture is fuzzy and colors are distorted


You will probably need to replace ALL of the CRT's and do a Full Convergence Alignment by a very experienced tech. Never replace only CRT as it will be brighter than the other two CRT's.

Apr 08, 2010 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Problems aligning convergence hc-p4753 projection


Hi,if the converence is wildly pinched in say one corner compared to the other colours then it is most likely that your convergence circuits have failed for that colour. - Warning,Not an easy fix without circuit schematics and can also be costly for the IC's too

Mar 19, 2010 | Samsung Televison & Video

2 Answers

RED CONVERGENCE SCREEN PATTERN BOWING AND CAN'T ADJUST


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Jun 13, 2009 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

My hcp4752 started smelling hot now the colors are


It looks like you have a problem on your convergence panel. Look for burned resistors near the STK-* IC's. One or more of the STK-* IC's may be bad. When the resistors get hot they smell but so do the IC's. You can replace the bad parts or you should be able to replace the entire panel then go thru a convergence alignment.

Jun 06, 2009 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

SAMSUNG HC-P4752W 47" TV Convergence problem


Resistors most likey...look for burnt or discolored resistors near the convergence chips.

Apr 07, 2009 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Samsung HC-P4752W rear projection television We


the convergance amps have failed you need to have them replaced there are 2 of them and some resistors may be affected. the cost of this repair can reach $350.00 depending on the tech you get. this is the most common failure in rear projection TVs. the convergance amps work very hard and are bound to fail. they also have very large heat sinks to keep them cool. heat is the biggest enemy of transistorized ICs.

Feb 22, 2008 | Samsung HC-P4752W 47" Rear Projection...

2 Answers

Now What???


I want to get this straight are you saying that you cant align them
and this is your focus problem or you have two problems that you cant get the convergence and the focus?

it might have been easier just to have the board replaced...
Samsung parts for convergance problem
http://www.partstore.com/Part/Samsung/Samsung/BP9500142E/New.aspx

Jan 28, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Samsung HC-P4752W No Color


Do not automatically think you need to go into the service menu. I bet you 100 to 1 that you pulled out a plug or a connector somewhere OR one is not seated into the plug all the way. If the set worked with color before you messed with it, there is not a problem in the service menu. The service menu is not the fix all thing. it is there to make fine alignments and adjustments, and as a matter of fact, messing with a service menu even with the service manual is very dangerous. I have seen peeps ruin TV sets by messing around with the service menu alignments. STAY out of these alignments. they are not going to fix a problem that all of a suddenly comes up. Repair the problem in the circuit first. Good Luck

Sep 18, 2007 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

T.V. blurred then died


You will need to replace or have the main convergence amp board replaced or have the main amp ICs replaced. i you have no electronic experience with printed circuit boards, play it safe and call in a pro to assist you with this repair. Good Luck

Jun 19, 2007 | Samsung HC-P4752W 47" Rear Projection...

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