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Ahh, video... great possibility, the pin 5. To discover, track down it. It will be some R and caps, coupling to a video output transistor. Also will have a 4.5MHz ceramic filter, to direct SIF back to IC. Also, will be a R/C PROBABLY to pin 6 (sync).
I have one TV using this IC. Only I need to have some time to disassembly it and confirm that.
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So many projects, so little time...
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