Curtis Mathes JX500 boom box
 

Any chance someone has or knows where I can get a schematic for this?
All the circuit boards indicate it was made by Gold Star.

P/S seems to work (constant 16V DC), but as I turn it on, the only
sound I get is a pulse or beat tone thru the speakers the starts out
fast & then slows down to nothing. Can't find Curtis Mathes on the web
or much on Goldstar. I thought CM was still in business somehow.

Thanx.