Thread: Carvin B2000 bass amp won't power on, need schematic.
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Phil Allison[_3_] Phil Allison[_3_] is offline
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Default Carvin B2000 bass amp won't power on, need schematic.
David Farber wrote:

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Schematic is he
https://cdn.shopify.com/s/files/1/04...0revj.pdf?2645

I finally was able to figure out where all the power supply components
were hiding. They were obscured by the heat sinks. The culprits were
Q800 and Q802. Their part numbers are STGW30NC60W and they were both
shorted across all three terminals.


** That is bad sign of other problems in the amp.

Those are high power IGBTs and they do not blow without a reason.



...... Phil
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