Referring to my CFTBL manual on game power up LED D19 and D21 turn on for a moment then D19 turns off and D20 starts to blink rapidly. D21 remains on. So, if LED D20 blinks one time - rom error @ u6. Blinks two times-ram error @ u8. Blinks three times-custom chip failure @ u9. That should narrow it down!!!!
Thanks, that's good to know. I have all 3 LEDs coming on and staying on. Is there anything in the manual on that? :)
Most likely not but if you want a manual you can download it here
http://www.ipdb.org/search.pl?any=creature+from+the+black&sortby=name&search=Search+Database&searchtype=quickMany things can cause this
I would start checking that you have 5 Volts DC coming into the CPU board on connector J210 pins 1 and 4 with a volt meter.
