[sdiy] TR-808 update

Oren Leavitt obl64 at ix.netcom.com
Tue Jul 23 01:13:09 CEST 2019


Bravo! That TR-808 should be good for another 40 years

On 7/22/19 5:57 PM, el macaco wrote:
> Hello all,
>
> A while back I posted about fixing my 808, the voltage detector/muting circuit was faulty but with that fixed it would still reset the cpu.
>
> Turns out replacing electrolytic capacitors 18,19, & 20 brought it back to life. 18 and 20 filter the 5v supply, 19 between ground and power on cpu inputs and outputs on the main board.
>
> Seems the caps are failing.  Already replaced most electrolytics and will do the rest in the future.
>
> Might help someone like all your comments have helped me!
>
> El
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