OK quick update, I pulled out the MPU board and checked it over quickly. It has had some ghetto repairs around U9.
I reseated the chips, now I het the quick flash and then two solid pulses.
Disconnecting the connectors (execpt for J4) gives the same result.
I read throught the manual, but the only pluses it talks about are the 7 on a sucessful startup.
Cheers Angelo
Excellent progress mate !
Reseat U7 (6810 RAM) and U8 (5101) - if not already done - Be CAREFUL around U8 as static will render this chip useless.
Reseat both PIAs U10 + U11 (I think you did that previous)
OK just went over the reseating, and I have the same "error", just a quick flash then two pulses.
I am guessing that the MPU board will need to be removed and repaired.
Cheers Angelo
No third flash was designed to indicate that the PIA 6820 at U 11 is bad, replace this and see what happens.
