Question about Televison & Video
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Posted on Jan 02, 2017
It's a hardware malfunction. It can't finish the magic focus cuz one of the IC is burned. Need to be replaced and to check the resistors.
Posted on Dec 10, 2007
Either the pins on the convergence ICs need to be resoldered or the ICs need to be replaced. These are large black ICs attached to a heat sink and should be marked STKxxx. Resolder first. If that does not resolve it, replace the ICs.
Posted on Mar 17, 2008
it sounds like your blue convergence ic is getting weak you need to replace the ic's STK392-110 and you should replace both because when 1 is bad the other will go real soon. They are inexspensive at the sight I posted and you will also get free tech online support if you purchase them there.
Posted on Apr 13, 2008
Your problem is the convergence circuit. This is very common in CRT projection sets like yours. There are a couple of IC's that need to be changed and possibly some resistors. A good repair shop will run you $400-$500 to do the repair.
Posted on Oct 28, 2008
No there are no quick fix options for this fault. The convergence amplifiers operate similar to a high power audio amplifier, so if there is an impairment anywhere in the system, it will result in distorted audio, or in the case of television convergence amplifiers, a color won't align. The convergence power pacs need to be replaced and the out of tolerance precision resistors located near the power pacs need to be carefully checked and replaced as necessary.
It is also possible that there are root faults that cause the amplifiers to go bad which include bad connections or a bad digital control module. This repair is possible for anyone having basic electronics knowledge and soldering skills.
Posted on Apr 28, 2009
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