Originally Posted by
StephenB
Replace both polygon and the BICU board. There was a post back in 2013 where if you jumper ( gob of solder) across resistor R294 it will also work.
Look VERY close, as the resistor is VERY small. The resistors all have a tiny o printed (in white) on them. the R294 was burnt so the "o" is not visible.
Look for the black resistors between the large white power connector and the row of capacitors. They are black surface mount devices with a white "o" printed on them. Look for the discolored one (burnt) the "o" is not visible.
A bad polygon causes the resistor to fail. Therefore it is necessary to replace the polygon and replace or repair the BICU.
Use a very small bridge of solder to jumper the resistor. ( these would be an incredible pain to de-solder and replace, I have made 2 successful repairs this way, still functioning today)
Good luck
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