Deluxe Memory Man hot under the hood!!

[delbowski]

hi...

i have a DMM and i'm in the process of doing a few things to it, but as i was trying a little experiment i saw a bit of a flash and now the pedal does not work.    i am building in an effects loop to the feedback pot, and i wired it up outside of the enclosure, making connections for future grounding of the new jacks.  it worked fine, but when i put it into the enclosure the problem hit.  i couldn't get the effect to work so i made a jump between the send and return wires to cancel out the loop and that's when it took a crap.  it passes a signal, but no delay.  the board gets warm now, right where the ac jack gets connected to the board.  there's a 220 ohm resistor right there that is getting very hot.  looking at the silk screening of the component locations on the board, one end of the resistor is connected to where a diode end should be, and the diode end is in another spot, make sense?  just wondering if anyone can verify that with me or if that is part of the problem.  any suggestions would also be a big help!  thanks a lot for taking the time to read...

del

p.s. what the heck is it with these older pedals... everytime you touch the board a wire breaks off!  i've spent more time replacing and looking for connections than i ever wanted to!

[Processaurus]

Something is shorted out and sucking a lot of power.  Did your mod make any metal stuff touch the circuitry?

[delbowski]

thanks for the reply...

the mod doesn't make anything touch the circuitry when it's all put together, however there's a chance that when i took a jumper wire to cancel out the mod one of the ends may have touched somewhere on the board... possibly there could have been a tiny metal filing or something else that got on there, but i think i did a good job of cleaning all that up before i fired her up.  as far as the jacks are concerned... i made sure i was hooking up the right lugs to the right places.  anyhow, if there's no idea of what i could check on the board, is there any ideas of how to go about troubleshooting something like this?  the only schematic i found doesn't seem to be the most helpful.. anyhow, any ideas would be greatly appreciated.  thanks

del

[delbowski]

this may be a simple question, but could the resistor have made a flash when something shorted out, or would it be something different?  as i said, i saw a little flash and then my pedal was dead, and gets hot right around the ac in on the board.  the 240 ohm metal film resistor is getting hot to be specific.  is there any other component that would make a flash when it gets fried?  sorry to bring this up again... thanks for the help!

del