JamMan Looper Phrase Sampler (All Lights Stuck On) Maybe scrap!!

[GHDirect]

Hi All

Just joined the forum from UK to see if anyone has any new ideas that might bring my 15 year old JamMan Looper Phrase Sampler back to life.
I am in UK and purchased this new many years back. Hardly used, sits in its box year on year till recently I found on power up all lights on and no control at all. See Pic
The remote power supply is Harman original and 100%.
Using some knowledge from this site and my dusty electronic skills I opened it up and can confirm the +5 -5 and 3.3 volts are perfect with no ripple (checked with meter and with my old scope).
I asked Harman whether there was any reset facility in the logic or even a circuit diagram.
Harman subsidiary UK said sorry "Legacy" to old no interest.
Harman USA said similar and that it would be difficult to find a service route.

Therefore before it goes in the bin, I ask whether any member has any fresh ideas or even a circuit diagram as having all lights is a possible clue to its logic state.

Regards
GHDirect

[Enzo]

Only thing comes to mind is to search the internet for a User Guide for the model. It might have a reinitialization procedure.

[Jazz P Bass]

Found this:

[GHDirect]

Thanks for the info but the reset tip is for the wrong model.
There is nothing in my User Manual for resetting this unit.
I have searched the web for an updated manual without success.
I have already tried holding the shift key down on power up but it doesn't respond and no change to the light problem.
Guess it's "Bin time"

GHDirect

[TomCarlos]

It is NOT the "Shift" button.... it is the "Store" button. Read those instructions again. They seem to apply to several JamMan models.

[GHDirect]

Thanks for this point. Your right and did a typo.

[moltar]

I fixed mine by replacing the large 1000uf /16v electrolytic early in in ps section. i think the silkscreen says c17?