Yes the convergence ICs need to be replaced, however so dont the six 1.8 ohm 1watt resistors as Toshiba recomends replacing those six resistors when the ICs are changed. You can get the 50H71 / 50H82 Convergence repair kit as the 42H83 is identical to the 50H71 series, so the kit will work for your model. Heres the link where you can get the kit.
http://servicemanuals.vstore.ca/
The STK392-150 are suspossedly a direct interchange, But I have heard of problems switching them in toshibas and panasonics. I would recomens not going much higher than STK392-120 unless you change out the convergence resistors and ICs as a unit.
Check the large two watt resistors near the Ics to see if any are open, Also double check the solder connections on the Ic pins.
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Are STK392-150 acceptable replacement or should I stick to STk392-110.
Changed both STK ICs (with -110) and all 6 1.8ohm resistors. Now all color are curved at the edges and I can not adjust convergence in Y, only in . Any ideas?
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