Kaneda Turntable Circuitry PCBs...Anyone from Japan knows where to get one?

[honinbou]

I want to get two sets of Kaneda turntable control PCBs for my Technics SP10 MKII and SL1100. Boards also work with SL1200, and SP10 MKI.


Problem is, these items are rarely sold outside of Japan. Could anyone living in Japan help me get two sets? I need a total of two servo PCBs + six motor amp PCBs.

http://homepage2.nifty.com/~mhitaste...rd/ttcont.html

http://homepage2.nifty.com/~mhitaste...oterdrive.html

[rjm]

Give me a shout, I'll see what I can do.

/Richard

[rjm]

The boards appear to be an ongoing DIY project of this particuar individual. Nowhere does it indicate they or anything else on his site are for sale. I dont know where you are getting the Kaneda part from either, the only reference to Kaneda are the solid state amps he is building which are "Kaneda-style".

?

Richard

[greyhorse]

The circuits actually do seem to be designed by Kaneda Akihiko. They were featured in a number of issues of MJ and also appear in two of Kaneda's books. Details on the following site;

http://www.geocities.co.jp/Technopol...urntable01.htm

If you follow the links, though, you'll see MHI is the only one who's made PCBs for them. Everyone else just makes them P2P on perfboard the old fashioned way. Honinbou, why not do that too? I know everyone has a skill level they're comfortable with, but this recent trend towards PCB groupbuys is probably preventing people from even trying to do P2P. Once you get used to laying out the ciruits beforehand on graph paper, and transfering them to perfboard, it's not that hard and it certainly feels more DIY than just soldering up a PCB.

If you're dead-set on PCBs, you could design them yourself or contact MHI. I'm sure your Japanese is good enough to be able to find his contact info.

[honinbou]

Thanks richard. You are right that the guy might make the boards just for himself 'cause I spotted kanji "DIY control PCBs prepared by an unbusy man..." somewhere on that page.

greyhorse, I could cook up some perf board versions easily, but the problem is, the schematic shown on that site isn't complete???

The full schematics with adjustment instructions used to be hosted on konton's blog/diary but his website suddenly vanished...

[Shaun]

If you get me the complete diagram, I'd be willing to CAD up the schematics and PCB.

Actually, I'd like to do it with more up-to-date controller IC's and BLCD motor drivers. However, that would require a significant amount of development time, unless someone already experienced in designing these circuits could design that circuit quickly.

[EC8010]

Just looking at those circuits given in the first links, they seem a step backwards from the SP10 circuitry. A 555 to set motor speed, am I reading that right? The SP10 used a proper crystal oscillator and converted it into a square wave for the logic. I don't have my SP10 any more, but if I were to start playing with the circuit, I'd be looking at converting the motor drive from rectangular steps to sine waves.

[Mark Kelly]

Originally posted by EC8010
A 555 to set motor speed, am I reading that right?

The 555 seems to be configured as a Schmitt trigger in the FG circuit, it then feeds via the 4528 pulse generator to a 4046 PLL , the reference input of which is the quartz crystal derived clock.

I agree wholeheartedly about the sinewaves. I've been playing with a really simple sinewave generator based on dividing a clock by eight and stepping the output, then running through a switched cap filter. Produces nice quadrature sinewave pairs with about 6 chips.

[carawu]

Originally posted by honinbou
The full schematics with adjustment instructions used to be hosted on konton's blog/diary but his website suddenly vanished...

Try http://www.archive.org


Scan of Akito Kaneta´s book:
http://de.geocities.com/bc1a69/book.html

LG Carsten

[EC8010]

Glad to hear I'd read the diagram incorrectly.