Technics 1210 mk2 pitch fader fix (and instructions on its removal)

[prestonchipfryer]

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.



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.

Hello Martin. Where could I obtain one of the said jumpers? Only I'm a bit thick with electronics. Would somewhere like Maplins stock them?

John

[MartinT]

These: http://www.ebay.co.uk/itm/25-2-54mm-...item2a18fb1553

But you only need one! Don't you have any old PC kit waiting to be scrapped? You can frequently find them on old circuit boards and peripherals.

[prestonchipfryer]

These: http://www.ebay.co.uk/itm/25-2-54mm-...item2a18fb1553

But you only need one! Don't you have any old PC kit waiting to be scrapped? You can frequently find them on old circuit boards and peripherals.

No old stuff. Thanks for the link.

John

[keiths]

John, I'm sure I've got loads of the jumpers lying around - PM me your address and I'll put one in the post to you straight away.

[prestonchipfryer]

Cheers Keith. PM on its way.

John

[keiths]

Cheers Keith. PM on its way.
John

Replied!

[prestonchipfryer]

Replied!

Okey doke.

[Marco]

Hi Martin,

Thanks for the link - just bought one of those little chaps!

Glad to hear that there was a small improvement. I thought that there might be, as LEDs in circuits (such as on the pitch controller) are usually quite noisy, which I suspect is where the sonic improvement is coming from.

Marco.

[moodybuilder]

Glad you found the infomation both helpful and benifical, so Martin are you going to remove the slider altogether and fill as I have ?

[MartinT]

No Phil, I'm not worried about the standard Techie's looks. It's only the sound that matters to me.