RedSub BP-80

[user 130681]

Hello and good day to you all.
Has anyone got a schematic for a RedSub BP-80 please.
A couple of resistors are burnt up so even a good ressolution photo of the board, would suffice.
Thanks for any help.

 

[user 130681]

I have reverse engineered most of it but there are two resistors that are burnt up and would be handy to know the values. One could be 100R and the other 150R according to my calculations but would be nice to see a photo of the bias network valuse.

 

[user 130681]

I reverse engineered the Chinesium amplifier board and fixed it. There is a design fault that causes it to overheat due to RF takeoff with a loudspeaker connected. The addition of a couple of capacitors to slow it down a bit is all it needed.