| Re: CRT based RPTV Convergence Repairs
These ICs run hot, but some sets hotter than others. Excessive dc ofset or excessive correction at the edges of the range of the chips can make them run hotter. I don't have a problem with fans, as long as they are mounted externally and do not use any of the internal power supplies in the set. I would start by verifying the setup is consistent with that in the service literature for your set and that there is no more than a couple hundred millivolts of dc on the inputs to each channel of the output ICs.
"It is better to debate a question without settling it than to settle a question without debating it."
-Joseph Joubert
Raise the bar. |