[jerryhawthorne]

Lumberman, if the radio volume is fine (loud enough) and the phono is weak, it suggests that perhaps your replacement cartridge is either weak or perhaps of the wrong type. Cartridges have a wide range of output voltages depending upon construction. Selecting the proper voltage output is fairly important.
Can you advise what cartridge you installed?
Refer to the schematic as to where the shield should be tied. That may or may not be a problem. It appears the shield is grounded to the changer base.
http://www.nostalgiaair.org/PagesByModel...013612.pdf
Jerry