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*An Official Foo-Approved guitarist since Sept 2023.
R.
Eqd Speaker Cranker clone
Monte Allums TR-2 Plus mod kit
Trading feedback: http://www.thefretboard.co.uk/discussion/60602/
https://shop.pimoroni.com/products/dc-barrel-power-jack-connector?utm_medium=cpc&utm_source=googlepla&variant=7570536833&gclid=CO7ajtG7l9ECFQEz0wod8mIDAg
I'm sure robinbowes knows this, but for anyone else who needs to change one, the best method on a modern though-plated board is to carefully destroy the remains of the old jack using small cutters, leaving just the three metal contacts - then they can be desoldered individually. If you try to do all three at once and get it out as a single unit you'll probably damage the board before it will come out cleanly.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Yeah, been there, done that! Good tip.
R.
Eqd Speaker Cranker clone
Monte Allums TR-2 Plus mod kit
Trading feedback: http://www.thefretboard.co.uk/discussion/60602/
It appears to work when I apply power as the LED comes on when the effect is engaged, but there is little or no sound - sound passes fine when the effect is bypassed. So, it appears there is a secondary fault somewhere.
I'm going to pull the pedal apart and take a look for anything obvious, but I don't suppose anyone has a schematic, or any trouble-shooting issues for this pedal (J.Rockett Lemon Aid) ?
R.
Eqd Speaker Cranker clone
Monte Allums TR-2 Plus mod kit
Trading feedback: http://www.thefretboard.co.uk/discussion/60602/
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
Looking at the board, I don't see any obvious failures. The board looks like this:
The transistors are 4 x 2n3906 and 2 x 2n5485.
I guess I'll have to try and trace the signal path and work my way back from the output until I find where it stops working.
R.
Eqd Speaker Cranker clone
Monte Allums TR-2 Plus mod kit
Trading feedback: http://www.thefretboard.co.uk/discussion/60602/
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
I don't see any reverse polarity protection. I wonder if the power socket incident involved a centre positive supply which has fried one or more transistors?
R.
Eqd Speaker Cranker clone
Monte Allums TR-2 Plus mod kit
Trading feedback: http://www.thefretboard.co.uk/discussion/60602/
I started removing the transistors to test them out-of-circuit with my DCA55. The first one (a 2n3906) tested OK, the second (a 2n5485) came up as a "Common anode diode network" - it should identify it as a jfet. Time to see if I have spares...
R.
Eqd Speaker Cranker clone
Monte Allums TR-2 Plus mod kit
Trading feedback: http://www.thefretboard.co.uk/discussion/60602/
R.
Eqd Speaker Cranker clone
Monte Allums TR-2 Plus mod kit
Trading feedback: http://www.thefretboard.co.uk/discussion/60602/
R.
Eqd Speaker Cranker clone
Monte Allums TR-2 Plus mod kit
Trading feedback: http://www.thefretboard.co.uk/discussion/60602/