Old Japanese 6 band eq pedal repair

[hamandles]

PS Anyone know where is a good place to get replacement fader knobs in the UK?!!

[Rob Strand]

Good to see you got it working.

E: 3.68v
C: 9.31v (fresh battery!)
B: 3.91v
Doesn't quite match Rob's predicted voltages but seems plausible.

It's close enough to normal.  It would take a schematic to judge any finer details.

Tested it again with some white noise and I could definitely hear the 800hz control making a difference now. I wonder if a slightly wonky looking capacitor could have been to blame

You never know what you find when you dig around fault finding.

[tubegeek]

PS Anyone know where is a good place to get replacement fader knobs in the UK?!!

You might have good luck making your own little tips out of a product sold here in the US for making soft handles for hand tools etc. It's called Plasti-Dip here, basically a gooey rubber paint that hardens into a medium-thickness glossy skin. The tips in your photos look like they were made some sort of similar way. Otherwise maybe two layers of shrink tubing, with the inside layer left long and folded over, and the outside layer trapping the folded part underneath.

This faders are too close together for "normal" fader tips to fit, I think.

Another possibility - google "Top hat switch tip telecaster" - these might be small enough to fit that layout. The faders look like they have a similar metal end as the Tele switch.

https://www.homeoftone.co.uk/products/telecaster-top-hat-switch-tip?variant=35679304778

[duck_arse]

https://www.taydaelectronics.com/electromechanical/switches-key-pad/toggle-switch/toggle-switch-handle-cap-black.html

not in the UK, not fader knobs, but they might do the job. cheap, three colours, if they don't work, stick em on yer toggles!

[bluebunny]

PS Anyone know where is a good place to get replacement fader knobs in the UK?!!

Rapid have a few.

[willienillie]

"Top hat switch tip telecaster"

Those are huge, much larger than Strat switch tips, which still might be too big to fit this pedal.

[tubegeek]

"Top hat switch tip telecaster"

Those are huge, much larger than Strat switch tips, which still might be too big to fit this pedal.

"Some modification necessary" perhaps....

[hamandles]

Some interesting thoughts here, thank you.  Yes, the tele pup selector would be too big, although the whole unit is a little bigger than I expected.  I guess I expected a Boss sized unit,  but this is longer and wider.
I may have a go with some plastidip or shrink wrap - good tips!