Caline CP-18 Orange Burst Overdrive  [schematic]

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Re: Caline CP-18 Orange Burst Overdrive

Postby aw73 » 14 Jul 2018, 22:49

it seems like it wouldnt work at all or be intermittent if it was the switch, but i guess it could be.
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Re: Caline CP-18 Orange Burst Overdrive

Postby Andy2No » 14 Jul 2018, 23:39

I guess they might have oxidised a contact or two, in the switch, by soldering it too slowly and getting it too hot.

The LED not going out is odd though. Does it have its own pole on the switch, with just a resistor in series with it, or is it more subtle than that, on that version? Maybe there's solder bridging two tracks.
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Re: Caline CP-18 Orange Burst Overdrive

Postby aw73 » 14 Jul 2018, 23:46

i cant tell if it has its own poll, it goes under the switch but it does have a current resistor close to the led.
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Re: Caline CP-18 Orange Burst Overdrive

Postby aw73 » 14 Jul 2018, 23:47

pole i mean
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Re: Caline CP-18 Orange Burst Overdrive

Postby aw73 » 14 Jul 2018, 23:51

when the pedal is on the led is bright but when its off it is real dim.
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Re: Caline CP-18 Orange Burst Overdrive

Postby aw73 » 14 Jul 2018, 23:54

i have clicked the switch dozens of times and nothing has changed.
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Re: Caline CP-18 Orange Burst Overdrive

Postby aw73 » 19 Jul 2018, 20:35

i found the problem under the input jack. it had some liquid/chemical under it that was eating the coating and shorting the copper trace to the led and ground. i cleaned it with alcohol, soldered the trace and reinstalled the input jack. very strange, i would of never seen it if i hadnt started pulling the jacks and switch off the board.
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Re: Caline CP-18 Orange Burst Overdrive

Postby Andy2No » 19 Jul 2018, 22:48

I'm glad to hear you've found the problem.

Maybe it was a spillage of a particularly vicious flux. The one of mine that I had to repair on arrival had evidently been soldered by hand - which is nice, in a way, but it was apparently done by someone with even worse soldering skills than myself... which is difficult for me to picture. I have very shaky hands. I'm not sure what that guy's excuse was.

I bought a second Puffer Fuzz too, intending to mod it. It was not very fuzzy, out of the box. I took it apart and found a lead that hadn't been clipped short after soldering and was pressing against something else.

Still, they're cheap, mostly quite interesting designs (often blatantly cloned) and they're constructed in a way that lets the acutely ham fisted, like me, have a good chance of modifying them. I think the Red Devil is an exception, and probably all of the DSP based ones, so I haven't bought any of those.
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Re: Caline CP-18 Orange Burst Overdrive

Postby aw73 » 19 Jul 2018, 22:58

if it was flux i definitely would not use that kind. i use liquid rosin flux and it is non corrosive and it wont conduct. i ordered some kester 186 no clean flux to try, ive never used it before. i also have shaky hands and smd soldering is very hard for me.
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Re: Caline CP-18 Orange Burst Overdrive

Postby wildschwein » 20 Aug 2018, 04:00

Great sounding pedal -- in fact it's the best OD I've used and I have used a lot in the last 29 years of playing. But they're not made well and if you look at them wrong they seem to stop working. I'm onto number 2 (number 1 is dead) -- it however has some occasional intermittent issues (I think related to soldering on the pot) but opening it up will make things worse so I am leaving it alone. Good thing they're cheap. Might fork out fork the real BB eventually.
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Re: Caline CP-18 Orange Burst Overdrive

Postby Andy2No » 20 Aug 2018, 12:01

They probably both just need some resoldering / touch up, like the first one I bought, wildschwein.

All I did was pick off some loose blobs, then touch up a few joints by melting them with the soldering iron for a few seconds.

If you still have the first one, you may as well try it - you can't make it any worse; it's already broken.
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Re: Caline CP-18 Orange Burst Overdrive

Postby Andy2No » 21 Aug 2018, 06:28

... I may also have added a touch more solder to a couple of points, but I didn't de-solder anything - in other words nothing I did to fix it required any skill at all - just ownership of a soldering iron.
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