Question about Samsung HC-P4752W 47" Rear Projection HDTV-Ready Television

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Tv won't turn on after repair

We ended up with a convergence problem on our Samsung Hc-p4752 television and so we replaced the ics as suggested in other posts but now the tv will not power on. Any idea what could've gone wrong?? Any advice would be greatly appreciated :)

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The first two things to check is to make sure none of the IC pins arent bridged with solder, and the other is to determine all wires are connected correctly and firmly.

Posted on Sep 18, 2008

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ISamsung TV model # HC-P4363W


Check the tv out?If the tv have picture,colors R,G,B misalignment,picture have colors shadows,look like 3D pictures.The tv problems is it have a convergence problems.Very common on a DLP tvs.Very much repairables.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts,must replaced to solved convergence problems.The shop will cost u $300-350 for parts and labors.

Jul 17, 2010 | Samsung HC-P4363W 43 in. TV/DVD Combo

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Hello


Convergence is dead.Know how to solders?Buy a convergence kit at Tv repair World.com,Tvrepairkits.com to replaced ICS and all it resistors.The shop will cost u $300 parts and labors.

Jan 02, 2010 | Samsung HC-P4363W 43 in. TV/DVD Combo

1 Answer

Hc-p4752 black screen when powered on.


glad i could help ...now the black screen .. remove the back turn it on and look at the actual tubes
the base of the tubes should have a reddish glow if not the set isnt fully on look at the top of the tube if its on you should see a box or a dot etc
if both conditions above are true then you have damaged the stks you will need to replace them again
you can order from here $7.99 each http://www.electronix.com
remember to solder carefully stks do not take shorts well
if you dont see anything in the tubes you may have damaged the regulator too if you have a multimeter handy (and you know how to use it)while the set is running check (pins 15,18) for +28 volts {pins 16 ,17 and 19} for -28 volts if you dont get around those voltages you will be replacing the regulator too its probably an str (something or other) look around where the power cord plugs in for a big transistor looking thing..
good luck


Sep 21, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Replaced ics, no power


i have one on my workbench right now please check the jumpers you unplugged especially the one on the far left corner (goes to front panel) the one behind the stk 392 010 you replaced (very easy to miss)
take good lighting and make sure every jumper is plugged in
skip this if your set was working but if it wasnt check the fuses and fusible resistors
third if all that fails check your soldering make sure the joints(on the stk's ) are all good and shiny and the joints on the heavier components especially the line output transformer the big black plastic thing on the right of the stk ic you could have loosened it [UNPLUG THE POWER CORD FIRST]

Sep 18, 2008 | Samsung HC-P4752W 47" Rear Projection...

2 Answers

Convergence adjustments


Replace both convergence ICs nuber STK392-040 that should take care of the problem. you can get new replacement ICs at the following link and they will send free instalation instructions with pictures so you can install the new ICs. heres the link.
http://servicemanuals.vstore.ca/

May 27, 2008 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Convergence issues


Yes the HC-P4252W and the HC-P4752W are both P59A chassis so they both use the two STK392-010 Convergence amp iCs that are located on the sub deflection board

May 12, 2008 | Samsung PCL545R 54" Rear Projection...

1 Answer

Convergence issues


if youre having convergence issues with your samsung HC-P4752W you need to replace both convergence ICs numbers STK392-010 they are available at the following link and they provide free instalation instructions with pics so you can do the repair your self and they also give free tech support in case you need extra help. Its an easy repair takes about an hour from start to finish, Changing the convergence board wont help as the Convergence ICs are located on the sub deflection board and thats about 400 to replace the board compared to 50 to replace the ICs. Heres the link.
http://servicemanuals.vstore.ca/

May 12, 2008 | Samsung HC-P4752W 47" Rear Projection...

2 Answers

Cant find parts


The resistors are 3.9OHM you can get the ICs you need as well as the risistors at the following link. They also provide free instalation instructions and free online instant messageing with a tech when you do the actual repair. If your model is the HC-P4752 you will need two STK392-010 Convergence ICs as well. heres the link.
http://servicemanuals.vstore.ca/

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

7 Answers

HC-P4752W - IC Replacement vs Convergence Module.


The colors weren't lining up correctly on my HC-P4752W which is only about 30 months old. I did a little bit of research and got ahold of the people at http://servicemanuals.vstore.ca/ They recommended replacing the IC's as well as the IC resistors. I purchased the replacement parts from their site and made the repairs myself. I should mention that I didn't have any previous soldering experience. The repair was easy and a complete success. You may find replacement parts elsewhere for slightly cheaper but what you won't find is the prompt and detailed customer service that they provide. They gave me there # and said to call if I had any questions before or during repair. I took advantage of their services and got answers every time I called.

Aug 11, 2007 | Samsung HC-P4752W 47" Rear Projection...

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