I have to get in here...
1 . Bought a 8664A
2. Wasn't working as advertised
3. tried to buy parts to fix it, done, now it works,
4. but missing a feature I want 001 EFC (need)
5. Get a part unit with said feature in description
6. Part arrive, feature not present, present in description, get a refund
7. Buy another unit 8665A with said feature as part, comes smashed to bit by shipping
8. Feature present but dead,
9. Get another refund
10. Buy a case with shit load of missing bits, but has 8665B bits in it... As ADVERTISED ! !! YEAH !!! the bar was not that high on that one... Even the top cover was missing.
11. Buy separate bits here and there, learn the innards of 866XX way too much for comfort
12. Build a 8665A 001 004 008 010 only missing the roms to get a 8665B (good board bad OSC 001) 004 008 010
From all the parts I now have a 8664A 4.4.? (soon 001) 004 008 and a 08665A 4.2.2(one day B) (soon 001) 004 008 010
It is never just a small fix... But now I can do mixer testing
Still don't have EFC
If you want to buy a 86XXX unit , let me know, I will help you and steer you away from ebay dead parts bundle and get you repairable untested stuff....