flip41126
New member
Hello
So I picked up the cmm4 jukebox for free. Off to a good start. No volume or volume controller but everything was moving inside. Cool. New volume controller and a tube later and I have sound. Neat. My first jukebox and it's kinda working.
Problem is the treble is rather low on this thing. I tapped into the amp with a audio source and it sounds fine. I'm thinking preamp issues. I'm finding little out there on this preamp.
Here is what it is.
Front side says it is a "Rowe preamp r-3800a"
Backside says it is a "Rowe r-3805"
I can not even find a diagram on it. I'm more of a arcade repair guy and a bit unknowable on this but would like it to sound right.
Any input would be great.
So I picked up the cmm4 jukebox for free. Off to a good start. No volume or volume controller but everything was moving inside. Cool. New volume controller and a tube later and I have sound. Neat. My first jukebox and it's kinda working.
Problem is the treble is rather low on this thing. I tapped into the amp with a audio source and it sounds fine. I'm thinking preamp issues. I'm finding little out there on this preamp.
Here is what it is.
Front side says it is a "Rowe preamp r-3800a"
Backside says it is a "Rowe r-3805"
I can not even find a diagram on it. I'm more of a arcade repair guy and a bit unknowable on this but would like it to sound right.
Any input would be great.