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Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Mon Feb 27, 2023 7:30 pm
by laurie
Most of the mechanical stuff is done. Up to over 6 hours work now. What was I thinking?
Powered it up and tested. Bypass works fine, the LEDs do what they should, but there is no sound coming out when the effect is engaged. So now comes the actual difficult part...
The knobs I had in stock are for "D" shaft pots. The icky ones on the pedal below are all I have today. One day I'll swap them out.
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- 20230227_120157 SML.jpg (200.68 KiB) Viewed 1742 times
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Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Mon Feb 27, 2023 7:30 pm
by laurie
- 20230227_120800 SML.jpg (248.75 KiB) Viewed 1742 times
Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Mon Feb 27, 2023 8:19 pm
by Gasgano
Pepe wrote: ↑Mon Feb 27, 2023 1:18 pm
WOW! How did you clean it? In this picture you don't see too many traces of the previous damage anymore!
This is sorcery man. If I did not know your background in building pedals ans such I'd say it's not the same board haha.
Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Mon Feb 27, 2023 9:26 pm
by Pepe
Okay, I assume that you're going to check the transistors in the next step. Some of them seem to have literally bathed in battery acid and I doubt that this prolonged their life.
Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Mon Feb 27, 2023 10:32 pm
by laurie
Pepe wrote: ↑Mon Feb 27, 2023 9:26 pm
Okay, I assume that you're going to check the transistors in the next step. Some of them seem to have literally bathed in battery acid and I doubt that this prolonged their life.
Yep. Now it is back together I'll track the signal through the pedal.
Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Tue Feb 28, 2023 10:51 am
by BearBoy
laurie wrote: ↑Mon Feb 27, 2023 7:30 pm
... but there is no sound coming out when the effect is engaged.
Well, it is supposed to be a noise suppressor?
I'll get my coat...
Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Tue Feb 28, 2023 11:44 am
by Pepe
Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Tue Feb 28, 2023 12:56 pm
by laurie
BearBoy wrote: ↑Tue Feb 28, 2023 10:51 am
laurie wrote: ↑Mon Feb 27, 2023 7:30 pm
... but there is no sound coming out when the effect is engaged.
Well, it is supposed to be a noise suppressor?
I'll get my coat...
Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Tue Feb 28, 2023 1:00 pm
by Pepe
Short question: did you check the potentiometers already? In some settings the NS-2 works as a heavy gate, maybe something is stuck to this position due to a failing potentiometer or solder joint.
Re: Lest we forget - NEVER leave a battery in a Boss pedal for "years"
Posted: Tue Feb 28, 2023 1:21 pm
by laurie
Pepe wrote: ↑Tue Feb 28, 2023 1:00 pm
Short question: did you check the potentiometers already? In some settings the NS-2 works as a heavy gate, maybe something is stuck to this position due to a failing potentiometer or solder joint.
Pots are good. I removed them from their PCB, cleaned and tested them, then resoldered them to the board. Then tested continuity all the way back to the main board.
I think I will have missed a failed component on the main board... there were so many I had to replace already because the acid had eaten through the the joint between the component lead and the component body.
Or it will be a failed solder joint. Where the component lead goes through the PCB it forms a tiny "well" for the acid to pool. I've fixed a bunch of joints already where the acid ate through the component lead and it no longer made contact with the solder.
