Question about Samsung PCL545R 54" Rear Projection Television
Can anyone tell me what part i need to replace when my tv comes on all the colors are out of alinement and the alinement tool in the menu cant fix it any ideas on this thanks in advance
You have a problem with the STK convergence modules. They're on the
center circuit board attached to an aluminum heat sink that's about 8"
long and 6" tall. You may be able to recreate the problem (hour glass
effect) by gently moving the heat sink (which the modules are connected
to). This gives the hour glass effect on the picture and the advanced
convergence screen. This is an indication that the modules pins aren't
solidly connected (meaning soldered) properly. Remove the circuit board
and clean the old solder off & resolder the modules pins to the
circuit board reconnected the board and then retest by again pushing on
the heat sink. The "factory" job was good enough for 3-4 years
but the heat (and these modules do create a lot of heat) and stress
created from repeated use eventually takes it's toll, weakens the pin
connections and our problem occurs. take the appropriate cautions
working around the high voltage of the set & use a non-conducting
piece of wood to push the heat sink when doing tests.
If soldering doesn't help, then the modules have died and need replacing. Don't buy the $10 cheap ones. Most of them have an upgraded version that is stronger. Also look for any burned resistors in the vicinity of the modules.
Best of luck, hope ya fix it.
Posted on Mar 06, 2008
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Posted on Jan 02, 2017
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