Was able to establish stereo signal through preamplifier. Signal was not clear. Seems to be a bad ground in this unit. Did get some output from right channel to speakers. But garbled and not clear.
Sold AS/IS for parts only.
But if your board is broken or damaged, here is the part you need.
Another Offering From, Gary….sansuioldaudiophile
Note: Each bracket comes with screws shown in second picture.