rcl
Member
Hey guys and gals, I need some troubleshooting help with my 1987 SR 4 2 band preamp.
Long story short....... years ago the pot on the bass control stopped stopping. It would spin all the way around. Rather than solve the issue I opted to "up grade" to the SD basslines 3 band in 3 holes. Never really liked it............fast forward 20 years. After having the bass passive for a number of years I decided to go original.
I fixed the pot. Re installed the original preamp........ no out put. I have 8.26V+ on pin 7 and oddly enough around 7.6 V+ on pin 6 ( output). Any one have any trouble shooting tips here. I feel comfortable replacing anything on this preamp. I am in rual Brasil but can get parts for this as they are common.
Thanks
Long story short....... years ago the pot on the bass control stopped stopping. It would spin all the way around. Rather than solve the issue I opted to "up grade" to the SD basslines 3 band in 3 holes. Never really liked it............fast forward 20 years. After having the bass passive for a number of years I decided to go original.
I fixed the pot. Re installed the original preamp........ no out put. I have 8.26V+ on pin 7 and oddly enough around 7.6 V+ on pin 6 ( output). Any one have any trouble shooting tips here. I feel comfortable replacing anything on this preamp. I am in rual Brasil but can get parts for this as they are common.
Thanks