Vintage Synth Repair

Why not to read it in Service manual? You can find it on internet.


Japanese, US and Canada model has value of electrolytic cap in primary
circuit 100 uF/200 Volt.
General and German model has here 47 uF/400 Volt.


I would change all caps in PSU, soon or later there can be problem
with some of them:


2x 220 uF/35 Volt
2x 100 uF/25 Volt
2x 1000 uF/10 Volt


Good luck with the repair.


Daniel Forro




On May 1, 2016, at 6:04 AM, fainardi83@yahoo.com [vintagesynthrepair]
wrote:
> i have a yamaha dx21
>
> the power supply seams to be broken, the main capacitor has exploded
>
> does anyone know the value  of this electro chemic capacitor
>
> i can read 100uF 85° 200WV
>