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Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Solid State Amplifiers => Schematics and Layouts => Topic started by: Axtman on August 04, 2025, 04:15:46 PM

Title: Acoustic Control Corporation 260 mini bass amp head
Post by: Axtman on August 04, 2025, 04:15:46 PM
I am look for an Acoustic 260 bass amp head schematic. This is NOT the 1970's amplifier but a modern version. I am trying to figure out what the blown power chip is. It is either a TDA7293 or 94. Thanks.
Title: Re: Acoustic Control Corporation 260 mini bass amp head
Post by: J M Fahey on August 05, 2025, 08:24:24 AM
Jazz P Bass showed both.

You´ll have to check on your PCb, with a loupe and strong light whether those "premium" pins 5 - 11 - 12 lead to other components or are just on pads soldered for mechanical strength but leading nowhere.

After replacement, start plugged into a light bulb limiter and no speaker load, to confirm that all voltages are fine.
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