I still have the modules from a hopeless GR-370 (after I messed with it anyway), including an extra video output board. I'll have to check those to see if they match up.
Edit: My video output modules have round 9-pin chroma demodulator ICs marked 442-10 which crosses to the NTE705A. Other than that it seems the boards are electrically the same.
Last edited by Jon A.; 11-02-2018 at 05:16 PM.
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