Blackstar Fly 3 schematic request

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bancika
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Post by bancika »

Hi,

anyone has schematic of this little amp? I own it and am just curious to see what they did.
It's all SMD, so it's a bit of a pain to reverse engineer. Would maybe consider modding the tone stack if it's possible to do without too much SMD work, but it's unlikely.

Tnx,
Bancika
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bancika
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Post by bancika »

Didn't find schematic but I was able to make this cool little amp much cooler. It's good sounding, although a bit dark and for metal it lacks gain. It's possible to fix using a booster, but it kind of defeats the purpose of a super-portable mini amp.
So I built a small JFET booster, found a trace to cut so I can inject it in the circuit right after the input jack and added a DPDT switch to bypass it. It turned it into a 4 channel amp. Booster adds at least 6-9dB and pushes the amp into heavy distortion but also helps bring out the highs significantly. Loving this little amp even more now :)

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mgalicki
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Post by mgalicki »

I screwed mine up, trying to connect an external speaker. I guess it requires that little board in front of the speaker? The ribbon cable came apart & not sure which way it goes. also may have fried something on the little board mounted to the speaker? Think I can order a new board?

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Axldeziak
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Post by Axldeziak »

mgalicki wrote: 01 Jan 2023, 22:45 I screwed mine up, trying to connect an external speaker. I guess it requires that little board in front of the speaker? The ribbon cable came apart & not sure which way it goes. also may have fried something on the little board mounted to the speaker? Think I can order a new board?
http://www.midboost.com/workbench/blackstar-fly-3#m204

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