Question about Televison & Video
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Posted on Jan 02, 2017
This can be as simple as poor connections on the convergence ICs or defective ICs. If you can solder you should be able to repair this yourself. Please let me know if you wish to attempt the repair and I will provide additional details and instructions.
I'm not sure which question will be returned to you, so I have prpovided hte same solution/request in both. Please only update one. Thanks
Posted on Mar 06, 2009
If you have a CONVERGENCE problem and it will not adjust---the two STK-392-150 Chips this set uses need to both be replaced and the set adjusted with the original remote control.
You can, if you are able to do the repair, buy a pair of chips for less than 14 dollars plus shipping on Ebay.
If you cannot do the repair--shop around your area--most shops are going to charge 300 or more for this kind of repair.
When you consider the cost of the parts--if you can do it or know someone who can--you can save the set and a lot of money--This repair can easily be done right in your home in about 1 hour--I know as I have done hundreds of them---did two today.
The chips (with the back off of the set) should be on two metal heat sinks on the board on the far left---they will be facing the front of the set.
All that is required to get at them is to remove all the plugs on that board and the screws that hold it in and tilt it up so the bottom of the board is in view---you unsolder both chips (about 18 pins each) and remove the 2 screws that hold each to a heat sink.
With 2 new chips you put heat sink compound on the back of each--it is a white grease to move heat quickly from the chip to the metal, and solder both chips in----put the board back down and all the plugs back(I usually mark all of them so I know where they go) and turn the set on and see what you have...
Most of the time this repairs the set--go into the customer menu and adjust the convergence and you are ready for another 5-8 years of life---this is the normal lifespan of these chips.
If you need assistance or have questions let me know--I am here to help people.
If this information helped you, rate this solution as I do this here for free.
Posted on Nov 08, 2009
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May 09, 2008 | Televison & Video
Red,blue and green each have an amplifier IC--Stk392-560 x 2
Replace both IC's for reliable repair.Also,check fuses,location sometimes ps5003-5008. fuse value 3.15 amp. ......T.
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