Question about Projection Televisions
Hi.. i need help with my samsung projection tv model # SP - 54J8HF .. The man who came to fix said that u need to replace the convergance card (STK) .. i live in Pakistan .. and here it is no where to be found .. the television is very dear to my mother who is not ready to sell it .. i searched ebay and as well as google .. kindly help me or give me an exact link where i could find the thing .. thanks in advance
Posted on May 22, 2016
SOURCE: red convergence wont move
Bill may you help me?
I have a Mitsubishi 45" Projection TV VS-4543.
The problem I am seeing is that there is a red gosting/double image. I found out that the coil L8W01 was burnt out and the trace pad that leads to pin1 of connector VR was also burnt on the MAIN PCB board. I had replace the coil and retrace the trace pad, also I had replace a new red convergence IC STK391-020. The problem still occure. I try to adjust the color alignment and the convergence alignment using the remote controle. The red line is not thin and sharp like the blue and green line. It is blurry and wide. Also the the red wasn't able to move in to the center of the alignment pattern when trying to adjust 5 different position during the convergence adjustment. What else can cause that problem? Please Help.
Posted on Jan 20, 2008
You need to replace the convergence ICs they are located on the large aluminum heat sink on the circuit board on the left. Either STK392-110 or STK392-120 are used in that chassis. And you can order them at this link and they provide free step by step instructions with pictures so you can do the repair yourself in about an hour. Heres the link. Just look for your stk numbers under the convergence IC section you will need to replace both of The ICs. If you need to know what they look like heres a pic.
Posted on Mar 30, 2008
I have same prob too is this a common fault ? Changed both convergence chips STK392-040 - Now only green and red will move - Blue will move up and down but not left and right also one of the STK's is getting very hot any ideas ??? email@example.com
Posted on Jun 03, 2008
If the convergence is off more than 1/2 inch or so you can't adjust. you have a failure of hardware. most likely the output IC. This set has 2 outputs for convergence. Each output contains 3 circuits, Six circuits altogether 2 red ,2 blue and 2 green. The normal customer adjustment will only alow adjustment of blue and red. They should be converged onto the green. There is a much more complex adjustment in the service mode for Geometry and convergence. These adjustments are only needed when you replace a failed componnent like the output ic. These ICs have been upgraded several times since the production of this set. The latest and most powerfull version is STK394-160. If feel up to it I suggest changing both outputs and the corresponding output resistors. Then do a complete geometry and convergence alignment.
Posted on Apr 16, 2009
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