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Old 20th May 2013, 01:04 PM   #1
Astig is offline Astig  Philippines
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Default Marshall B65 Schematic

Hey guys, I just broke my bass amp Marshall B65 BASS STATE. I opened it and found two transistor drivers that blown, its marks is T9 and T11. I believed this represents Transistor 9 and transistor 11, but there are no written value in it. plus the bias transistor burns and unreadable. Does anyone has the schematic of Marshall B65 BASS STATE? or where can I find them?
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Old 20th May 2013, 02:00 PM   #2
JMFahey is offline JMFahey  Argentina
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Start by emailing Marshall themselves.
Do not sound like a clueless Musician but a Tech.
Something like "We at Polanco Audio Service got a B65 ... serial number xxxxyyyy for repair. Please email proper schematic. Thanks"

Meanwhile, get it on a well lighted bench and start tracing and drawing the schematic by hand.

And post a couple pictures here.
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Old 20th May 2013, 02:18 PM   #3
Astig is offline Astig  Philippines
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Thanks, I will post it as soon as I finish drawing.
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Old 21st May 2013, 05:40 AM   #4
Astig is offline Astig  Philippines
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I don't do much on drawing so I toke a photo of the circuit board of my Marshall B65 Bass state I hope this would help.

https://www.facebook.com/photo.php?f...type=3&theater

https://www.facebook.com/photo.php?f...type=3&theater

https://www.facebook.com/photo.php?f...type=3&theater
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Old 21st May 2013, 08:29 AM   #5
Astig is offline Astig  Philippines
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I don't do much on drawing so I toke a photo of the circuit board of my Marshall B65 Bass state I hope this would help.
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