Yamaha PX-2 Turntable Help * slotted opto switches *

[mike@itx]

Hi All.

I just acquired a one owner Yamaha PX-2 , original box and accessories including a spare optical sensor and other spare parts, everything works except the auto function.

I got to the sensor board and all the optos light up, used a HO led flashlight on them and the tonearm moves as long as there is light, this is when I press any of the 3 Auto buttons.

Any ideas on a sub for the slotted optical switches??
I was thinking a Motorola H11B1 or I can probably use discrete opto diode and darlington

Thanks,
Mike

 

[mike@itx]

Update on my post, I used discrete components to fix the sensor board. Everything works!