Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television
Subject says pretty much everything. Read somewhere parts should cost around $40.00. Can use a soldering gun and multi-meter
That all too common problem is the failure of the convergence amps in that unit which takes two STK392-040 Sanyo built Ics at board location Icz103 and Icz104 and usually one or more pico fuses and some low ohm resistors. F1018 sometimes opens due to stress but generally it's just the two 6.3 amp pico fuses and if they have opened I strongly recommend replacing them with a 6.3 amp slo-blo pico.
The low ohm resistors at RZ147, RZ146 usually show signs of heat stress and may even be burned beyond recognition. Testing at that point is almost unnecessary but will confirm their change in value. Almost always they need to be replaced.
Other than than that a good grade of solder and some heat sink compound and that's all the parts you need.. And to answer your initial question, yes about 40 bucks in parts.
Have a great day!
Posted on Dec 02, 2007
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