Question about Mitsubishi WS-55809 55" Rear Projection Television
STK ICS convergence they are big black ICs will have Part number on them example STK392-570 --pico fuses Look like resistors but are green or yellow 5amps 6amps they are mostly in power suppy side .replace Both of your STKs and dont worry about the pico fuses if any of them where Bad set would not do anything! Call Mats Electronics for Parts 1-800-628-1118
Posted on Dec 18, 2009
You could Download the Service Manual From the Link below :-
That would have all the Details Regarding Error 1-2. You could order the Capacitors/ IC Online or Go to Radio Shack to have those and Solder it to get this Fix.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!
Posted on Dec 12, 2009
Thanks for using FixYa. From what you have described it seems it is a problem with the convergence chip going bad and needs replacement however, before those please follow this:
1). Plug the TV into a power strip.
2). With TV plugged in, light blinking Press the system reset button and hold while you turn the strip off then back on again and then continue to hold the reset for another 30 seconds. When you’ll release the reset button the light should blink for about 2 minutes & then stop and the TV will turn on.
If after doing all this still the issue is not resolved then you have then definitely it is a bad convergence chip that has shorted; it takes out one or two Pico fuses in the set's power supply---the set detects no voltage to the convergence chips and shuts down. You might have to replace the Pico fuses as well. The typical cost to get this fixed by a pro is about $300 - and it doesn't mean that he/they will do a job better than you do. The parts are less than $100 (about $20-$30 for the IC's) if you want to do it yourself. Replacing only the IC's MAY solve the problem; however, many people have also had blown resistors requiring replacement. Why would you ask should you replace both of the IC's if only one is shot?! If one is shot the other one is not far away and for that little price of the chips it worth changing them both at the same time. Also the convergence board should be checked for cracked solder. If you replace the ICs and the resistors are shot, the ICs may blow again almost immediately, meaning you may have to do the repair twice.
Please do accept the solution if the issue is resolved or else revert for further assistance.
Posted on Dec 12, 2009
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Posted on Jan 02, 2017
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