SL-1200MK5 pitch gain calibration help?

Hi guys,

Both my SL-1200mk5's need pitch calibration but I can't find any instructions. I hope someone here knows how to do this.

The pitch going in the negative direction, the lower dots freeze at about 3.8%. Going in the positive, the upper dots freeze at ~4.1% and the uppermost freeze at ~7.1%.

The pitch control gain adjustment resistance value at VR302 is 2.875 kO as it is supposed to be. I haven't measured VR301 for the 0% adjustment but I believe it's fine since the zero is where it should be.

Any clues?

How did you work out that it's "3.8%", "4.1%" and "7.1%"?

loukash
How did you work out that it's "3.8%", "4.1%" and "7.1%"?

It's called visual estimation. The meaning of the ~ sign is "approximately".

^ Exactly.

And when everything else fails, let's consult the manual:
https://manua.ls/technics/sl-1200mk5/manual?p=9

Pitch control
[…]
• The numbers represent approximate percentages.

(emphasis mine)

loukash
^ Exactly.

And when everything else fails, let's consult the manual:
https://manua.ls/technics/sl-1200mk5/manual?p=9

Pitch control
[…]
• The numbers represent approximate percentages.
(emphasis mine)

If you don't want to help or don't know how to help, please save me your comments. Approximate does not mean the wild deviations I see and that do not show on other turntables – and, most importantly, that didn't show on my own turntables before.

dalai.lamia
please save me your comments

My apologies for even daring to reply to your post. It won't happen ever again.