Anyone have a schematic to an RCA TM-9N Broadcast Monitor?
 

So Sams and Riders don't cover broadcast station equipment and the ETF doesn't have any info on it either.

I'm working on what looks to be a mid 50's-mid 60's RCA TM-9N 8" broadcast monitor. I've had some issues with resistors cooking and excessive power draw, and I'm reaching the point where I need a schematic to accurately troubleshoot...If anybody can point me to one it would be a great help.

Thanks.