Question about Samsung HCM5525W 55" Rear Projection Television

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Replacing the ic's on a samsung hcm5525w. ic's are stuck

In refrence to the stuck ic's. i desoldered all the pins from the ic's and removed the screws. made sure all the pins were desoldered by checking each one. i tried a small screwdriver and a sharp scraper with no success, i inserted needlenose pliers were the screw holes are and tried to pull them off. the ends on the ic's broke and the ic's are still stuck to the aluminum plates.is it possible that the ic's are fried to the aluminum plates?

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The aluminum plate is a heat sink, there should be solder joints to the board on it. Unsolder them and remove the heat sink to make it easier to remove.

Posted on Feb 16, 2009

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I have a Samsung HCM5525W and the red is arched upward DNA anyone help me out


Check the resistors that feed to the convergence ICs STK392-110s they are 1.8 ohms.

Sep 26, 2010 | Samsung HCM5525W 55" Rear Projection...

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How can chang sony tv stk ic


if it is a sony check to see if any of those little green resistors are blown first. most sonys have the stk chips on the main deflection board.they will be next to each other with a big heat sink on each.have a soldering and desoldering iron ready as well as tape and marker for the wires.. remove the wires from the board you dont have to take the board all the way out. start desoldering each pin. if some pins are stuck just touch the pin with the iron. clean the heat sinks.apply themal paste to the new ics. put the new ics through the holes and start soldering. this part can be tricky. put the tip on the pin the solder will flow just quickly remove the solder then the iron 36 times and your done.

Sep 11, 2010 | Hitachi 43FWX20B 43" Rear Projection...

1 Answer

How do you replace ic chips on Panasonic 52 inch hdtv projection?


Most IC's on circuit boards these days are of the surface mount variety. You will need special Desoldering Equipment to remove these chips, especially the one wth 100 or more pins, the type of equipment used in this process heats all sides of the chip at once while a small suction that grabs the chip for removal. Now the SIP chips (Single inline package). chips which usually consists of less then 20pins can be removed with a desoldering gun such as the HAko 880 desoldering gun. Or you can use a standard soldering iron and solder Wick, that can be found at Radio Shack under Soldering Braide).. These procedures are common for all IC replacement. I am asuming you are trying to remove the Convergence IC on this model, The two large Black one labeled STK-392-110, the correct and easy way to remove these is to remove the entire board from the unit and remove the two screws holdinf each one in place, Unsolder the pins of each one and remove the IC, reverse this process to reinstall them. Good soldering technique is critical here as you don't want to bridge pins together causing yourself more problems. Double check your soldering and Double check it again.

Thanks :
Delhielectronics@live.com

Sep 28, 2009 | Panasonic PT-53WX53 53" Rear Projection...

2 Answers

Color alignment


Please replace both convergence IC's.

May 27, 2009 | Samsung HCM5525W 55" Rear Projection...

1 Answer

I'M REPLACING THE IC'S ON MY SAMSUNG HCM5525W


Have you unsolder parts from board if so take flat head screw driver and tapp on top of it to get ICs lose from heat sinks.

Feb 16, 2009 | Samsung HCM5525W 55" Rear Projection...

1 Answer

Samsung hcm 5525w


If this set is new, a problem like this would be covered by warranty. If it is no longer under warranty, locate the convergence ICs which will be large black ICs attacked to a heatsink. Try resoldering the pins on these ICs first. If that does not resolve the problem, replace the ICs. These should be marked STKxxx.

Keep me posted,
Dan

Jan 09, 2009 | Samsung HCM5525W 55" Rear Projection...

1 Answer

Samsung HCM5525W 55inch


This is a convergence problem. It happens to all big screen rear projectors. The convergence output ic's need to be replaced. I would let a repair man do this.

Nov 11, 2008 | Samsung HCM5525W 55" Rear Projection...

1 Answer

Perfect focus reads "no sensor data"


hope this helps check out this above links

please check out this links

for convergence board ics reparing it your self

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

and for convergence settings

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

thanks.





Oct 09, 2008 | Samsung HCM5525W 55" Rear Projection...

1 Answer

Samsung HCM5525W--Blue problems


replace both STK392-040 Convergence ICs. You can get replacemnet ICs at the following link and they provide free instalation instructions and free online tech support in case you need further assistance doing the repair.
http://servicemanuals.vstore.ca/

Aug 08, 2008 | Samsung HCM5525W 55" Rear Projection...

3 Answers

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