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Need help troubleshooting a Kasino U100-P [message #27089] Wed, 07 November 2018 00:48 Go to previous message
muddy udders is currently offline  muddy udders
Messages: 6
Registered: November 2018
Junior Member
I recently picked up a Kasino Club PA head. It works but isn't very loud. All channels seem to be the same no difference, all knobs do what they are supposed to tone wise, Reverb works. I believe I can rule out individual channel boards as they all are equal in volume.
I have the schematics for each board and have been probing the PC900 output board for voltages and everything is close. I see no obvious burned components or bad solder joints. I do see -38v on Q2 BLU which is the base of the 36892. Would this be normal? Schematic shows -.1
I removed both Q1 and Q2 tested them Q2 was hFE=35 Vf=526mV Q1 was hFE=25 Vf=517mV
I put them back in swapping positions and Q2 BLU voltage remained -38v.
If you haven't figured it out yet my skill level is beginner/intermediate. I have built a couple pedals from scratch and in the past built a pirate FM radio station. I know enough to most likely not electrocute myself, no promises though.

Any and all help would be appreciated.

Thanks,

Robert/Muddy

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