PH-1 Scematic/Service manual or help ....

[Melanhead]

I have a friend's PH-1. The flip Flop circuit is acting screwy. The LED doens't stay on ( maybe normal for some older boss pedals , My OD-1 was like this ) and it seems like if you hold down the switch to get it to stay on the effect is off ... when the light is off the effect is on ... It's like latching backwards ! ...

Anyways I did a few quick tests and both transistors are "flip/flopping" but not sure if the flip/flop circuit in this pedal is that same as the SD-1, for which I have a service manual. The layout is definitely different and I'd rather not trace it if I don't have to....

Anyone ?

He gave it to me because he thought it was bleeding through when off .... from my observation, he only thought it was off

[putrefusion]

if it works, do a search for my posts and you'll find a thread where I scanned the PH1 service manual.

[Melanhead]

if it works, do a search for my posts and you'll find a thread where I scanned the PH1 service manual.

Doh! ... I did a search but it didn't work, but I just noticed that I downloaded that when you posted it! ... I guess I should have done a search through my files

Thanks for refreshing my memory ....