BOSS DD-3 always ON

alsercol · Post by **alsercol** » 13 Sep 2007, 08:13

Hi!

How can I make my BOSS DD-3 always ON for mod it to true-bypass?

Dirk_Hendrik · Post by **Dirk_Hendrik** » 13 Sep 2007, 10:48

The DD3 exists in 3 versions. Which one is yours?

see also:
http://www.stinkfoot.se/andreas/diy/articles/DD3.htm

(excellent stuff)

alsercol · Post by **alsercol** » 13 Sep 2007, 10:57

Dirk_Hendrik wrote:The DD3 exists in 3 versions. Which one is yours?

see also:
http://www.stinkfoot.se/andreas/diy/articles/DD3.htm

(excellent stuff)

Mine is DD-3 version 3.

Dirk_Hendrik · Post by **Dirk_Hendrik** » 13 Sep 2007, 16:48

In that case... sorry. Can't help you with that. I haven't had one on my bench yet.

lmkv15 · Post by **lmkv15** » 13 Sep 2007, 17:38

Hi,
A possibility would be a relay controlled True Bypass. I have made test way to a BD 2.

regards Uwe

alsercol · Post by **alsercol** » 19 Sep 2007, 11:54

As lmkv15 proposed, I have modified my DD-3 to true-bypass with a relay DPDT, but there is a popping noise that can be heard in delay repeats too.

I'll try with a mechanical switch, but how I make the DD-3 always ON ?

lmkv15 · Post by **lmkv15** » 20 Sep 2007, 07:53

Hi,

You must desolder the switch fet's and bridged the pins D-->S.

regards Uwe

alsercol · Post by **alsercol** » 20 Sep 2007, 07:59

There is no FETs on DD-3. Switching of DD-3 is different than other BOSS pedals.

pz · Post by pz » 23 Sep 2007, 19:18

alsercol wrote:There is no FETs on DD-3. Switching of DD-3 is different than other BOSS pedals.

probably something similar or the same as in DD5 - bypass is done in digital domain, that is, in bypass mode DSP/uC spits no signal to DAC.
The only one solution i see here would be some additional circuit that checks if the Check LED is on, when not - it should simulate a click on the bypass switch. The LED signal is only one point where we can easily check if delay is on or off.
just speculating, a haven't seen the component side of the new DD3 pcb...