Search found 6 matches

by Unic
Mon Nov 12, 2018 7:49 am
Forum: General Vinyl
Topic: JBE series 3 restoration. Next on the list....
Replies: 50
Views: 35441

Re: JBE series 3 restoration. Next on the list....

Hi everyone, The control unit for my JBE Series 3 is ready and it work fine. The Technics SL-2000 schematics matches (posted the page above). So I confirmed that the pitch potentiometers are 5K lin and the ceramic capacitor is a 10pF. At first , I had some speed issue (not stable) ; the problem was ...
by Unic
Sun Sep 30, 2018 9:48 am
Forum: General Vinyl
Topic: JBE series 3 restoration. Next on the list....
Replies: 50
Views: 35441

Re: JBE series 3 restoration. Next on the list....

Thank you for this confirmation, Ant. I already design a layout to receve this 18v voltage regulator with an extra 12v regulator aside to control the bistable relay that will handle the power button, the speed switches buttons and their respective leds. I am waiting for the parts right now. When don...
by Unic
Thu Sep 27, 2018 1:40 pm
Forum: General Vinyl
Topic: JBE series 3 restoration. Next on the list....
Replies: 50
Views: 35441

Re: JBE series 3 restoration. Next on the list....

I think I have almost all the data to complete my diy control unit.
It's only lack the potentiometer values confirmation.

Thanks in advance for any help, here. :)
by Unic
Thu Sep 27, 2018 12:46 pm
Forum: General Vinyl
Topic: JBE series 3 restoration. Next on the list....
Replies: 50
Views: 35441

Re: JBE series 3 restoration. Next on the list....

EDIT : Captures completed with wires colours.
by Unic
Thu Sep 27, 2018 11:41 am
Forum: General Vinyl
Topic: JBE series 3 restoration. Next on the list....
Replies: 50
Views: 35441

Re: JBE series 3 restoration. Next on the list....

Hi, I've done some research. I found out that a similar motor was use on the Technics SL-2000. The service manual is available on vinylengine ; It was helpful. I managed to identify the value of the ZD1 (Zener MA1180 / 18v / 1,2w) and the colours wires from the Matsushita motor unit. The pitches pot...
by Unic
Wed Sep 26, 2018 9:08 am
Forum: General Vinyl
Topic: JBE series 3 restoration. Next on the list....
Replies: 50
Views: 35441

Re: JBE series 3 restoration. Next on the list....

yes d1 is a zener and yes you were right about the connections on the transistor. I took the bloody thing off the board and the pins were marked up on the underside, nothing on the can anywhere other than the part number......... have i finally got it ? i think the bridge is now a bridge. thanks ni...