Question about Mitsubishi WS-65809 65" Rear Projection Television
Error code is short protection
The most common reason for this in the WS65809 is that one of the two 5 amp pico fuses that protect the Convergence circuit are blown.
The set detects no voltage and shuts down.
This model uses two STK-392-570 Convergence IC's that fail after several years because the heat sink grease used to transfer heat from them to the metal heat sink dries out--one of the chips reaches a point where it cannot stay cool and fails.
You can buy both chips on Ebay for about 14 dollars for a pair plus shipping. If you are able to do this repair you can save a lot of money as most shops charge 300-400 for this kind of repair.
I do lots of them (done hundreds here) of them for 200-250 total.
If you cannot do the repair--shop around in your area and make sure whoever you get to do changes both chips! Aside from the 2 fuses there are also some resistors in front of them that need to be checked. If a shop tells you "it has to go to the shop" keep looking as any good tech can do this repair in your home in about 1 hour.
This set should be worth fixing---you are not going to be able to replace it for what a reasonable repair should cost--
If you have any questions or need help--reply to this posting here and I will assist you further---I am not allowed here to post MY email address so if you need help let me know.
Posted on Sep 29, 2009
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Posted on Jan 02, 2017
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