Have you tried locating the service manual for the VCR?
Your local authorized Panasonic repair shop should have them
and may let you photocopy the relevant pages. At least you'd
know the pinout.

Robert

Alan B. Pearce wrote:

> I am looking for datasheets for Mitsubishi Electric IC's part numbers
> M56746SP and M56747AFP. These are motor driver ICs as used in VCR machines
> and the like. Web searching has taken me all round the houses to any number
> of outfits that seem to have stocks for sale, but not a single place has a
> datasheet available.
> 
> There are also indications that ST second sourced at least one, if not both
> chips, but looking at the ST pages also draws a blank, including trying to
> get a cross reference.
> 
> I suspect the two chips are essentially identical, with the 746 possibly
> having a higher output current rating. It is used on the spindle motor that
> I have, and the other one is used on a smaller motor.
> 
> If I can find out enough about the motors I have a couple of projects I
> would like to try, one of them being a variation on a propeller clock.
> 
> TIA
> 
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