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The vertical ic on that should be mounted to a heatsink.It will be a flat ic with all the pins in line and a screw holding it to the heatsink and near the flyback.The no. on it would start with LA something as it was made by Sanyo.Probably 95% of 80s and 90s tvs use Sanyo made vertical ics.You probably have some bad electrolytics near the ic which caused it's demise.Also a resistor may have burned open from from the shorted ic.It will be in series with the rectifier feeding the the B+ to the vertical ic from the flyback transformer.
Those 35" Mitsubishis are great sets other than the electrolytic cap leaking problems.The crts were strong and lasted.Only seen one with a weak jug. Belonged to a retired guy and he said it was never turned off.
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