18 Feb
2002
18 Feb
'02
2:04 p.m.
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