Question about Sony KP-46WT500 46" Rear Projection HDTV-Ready Television
From what I've read so far, I should replace both the convergence IC's (part stk392-560).
I downloaded the service manual, but haven't been able to locate them on any of the board diagrams. Is there a different number Sony uses in their manuals?
Which board is it on?
The ICs are located on the D board Tan board on the lower left side looking in from the rear. They old Ics will need to be desoldered and replacements soldered in. Also check the yellow pico fuses located under the fins of the ICs heat sink, usually some of those will be open ( Blown) replace them with 3.5 amp pico fuses.
Posted on Nov 29, 2008
Check the site www.TvRepairKits.com. They have put together a kit for your exact model. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc. Everything you need to fix it yourself.
Posted on Jan 27, 2009
You have to pull the chasis completly out the set. Make sure you know where all the wires go that u have to unplug. Also u may need to change open resistors near the convergence amplifiers.
Posted on Apr 23, 2009
Pin 10 should be at the positive convergence power voltage. The ICs run on a plus and minus voltage from a power supply. Usually +/- 15V to +/- 30V. (don't know this brand.) (not sure if -570 is replacement for -560; could be.) I'd look through main power supply for these 2 voltages. Ohm to pin 10, etc. Check PS fuses there.
Posted on May 02, 2010
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Posted on Jan 02, 2017
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