Had to fix Frogger Soundboards last night.....
834-0069 Version Sounboard
0-$16FF = $0D4C ROM
4000-4FFF = RAM (2114s)
KT-4108-1 (AMIDAR Version Soundboard)
0-$16FF = $EF60 ROM (Different?)
8000-83FF = RAM (2114)
To check sound read AY-3-8919 pins 3,4, 38 at 1ms/ 100mV/ You will see
Digital waves.
Read LM741 pin 6 at 1ms/ .5V/ for output to final AMP.
Kev
mowerman@erols.com
Received on Mon Feb 18 08:15:42 2002
This archive was generated by hypermail 2.1.8 : Tue Dec 02 2003 - 18:40:39 EST