would anybody believe me if i said i have sourced and replaced nearly every chip on the board and the *
word describing sexual relations
* thing STILL doesn't work. replaced all but 4 chips now. 8 mhz and 3.57 mhz clock signals I believe are good. on the oscilloscope it's there, it's timed properly, and at a proper voltage level, the 3.57 mhz just a little ugly. i think it's just a result of the weird high low inverter (3 of them?!) it goes through, i'm going to replace the resistors and small caps in the 3.57 mhz circuit to be sure.
fed the amp an audio signal directly and it plays (amplifies) fine.
starting to get a little frustrated with this board.