Ok, this was a very simple mod to try out. Required: one standard PCB jumper as found on many motherboards and PCI cards. Remove connector CN102 and insert the jumper connecting pins 6 and 7 of the PCB socket. Easily reversible, and negates the useless pitch control and centre detent switch. You lose the LED indicator, too.
What this does is ground pins 9, 12 & 13 of IC302 (pitch control), effectively crystal locking the deck's speed.
http://www.mtc.me.uk/images/Pitch_Jumper.jpg
Listening to it, I can maybe hear a further cleaning up of the soundstage making everything that little bit more vivid. It's not a night and day thing, but every little helps. A nice, cost-free mod. Thanks Phil and all the others for pointing it out.
