Old 3 knob memory man help/schematic

[antieatingactivist]

I just got a really neat memory man for cheap. The only problem is that the delay knob isn't working. The only schematic that I can find on the internet is for a later deluxe model. Nothing seems to compare to the schematic in the delay pot area.

I haven't even gotten a chance to test the pot yet, but being that the pedal works just fine except for the speed doesn't change, im thinking it is something else. Electrolytic cap maybe? Should I go ahead and replace them all while I'm at it? does anyone have the schematic for a EH1338A?

I've always wanted an analog delay, but not for 300 bucks, and my boss dd20 doesn't really do it for me. Any help will be appreaciated.

[antieatingactivist]

I changed the Vibrator chip and the op-amp that is situated underneath the delay pot. No change. Could somebody give me some insight what might make 4047 chip not change speed?

[Steve_P]

You might check with Ron Neely. He's fixed a couple of things for me, although he's concentrating on his own line of effects. Nice guy!

http://electroharmonix.ronsound.com/

[duke of earl]

I played through one of those one time and thought it sucked a lot of tone and was noisy. I bought a Carl Martin DeLayla that blows it out of the water.

[tubesornothing]

Well to each his own.  Anyways, back to the problem at hand.

If not Ron Neely, post it on http://www.diystompboxes.com or http://board.buildyourownclone.com  those guys should be able to help out.