Boss GE-7 won't turn off

[spoontex]

Hi,

I have a Boss GE-7 that sometimes can't shutdown, the only way is power off the pedal. I've checked the switch but it works fine...

Anybody can help me?

Thanks.

[antonis]

Do you use it with only AC adaptor or with battery too..??

[GGBB]

Most boss pedals use JFET switching. When the switching malfunctions, it usually means one of the electronic components in the switching circuit is failing. See http://www.geofex.com/Article_Folders/bosstech.pdf for info.

[ThermionicScott]

Does holding the switch down a bit longer make a difference?  I don't know if this is germane to your Boss pedal, but Ibanez Soundtank pedals have a reputation for the cheap switches going bad.  But my understanding is that the switch isn't really failing, the flip-flop capacitors just aren't big enough to debounce the switch as it wears.  There is a mod to increase the values of these caps and it worked well on my TS-5 (they're C4 and C5 in the lower right part of the picture):



https://www.tdpri.com/threads/ts7-vs-ts9.392472/#post-4938973

[spoontex]

Solved!

Cold joint P1, and bad power connector.

[ThermionicScott]

Aha, congrats!