Scucci
Well-known member
Anyone with a Pole Position, with engine sounds and a logic probe, can you do me a favor and check your 7497's at 12B and 11C and tell me what each of your pins is doing? ... if you could check the 393 at 12D also, that'd be dandy...
I had a bad 74174 at 11A, replaced it to find my 7497 at 12B had a floating output... replaced it, and I'm still getting no engine sounds... just would like to know what SHOULD be happening so I can get this fixed.
Most every pin on these things (minus the CLK lines at 9 on the 7497's) is just sitting at high or low... I'd expect there to be SOME pulsing going on, right?
I had a bad 74174 at 11A, replaced it to find my 7497 at 12B had a floating output... replaced it, and I'm still getting no engine sounds... just would like to know what SHOULD be happening so I can get this fixed.
Most every pin on these things (minus the CLK lines at 9 on the 7497's) is just sitting at high or low... I'd expect there to be SOME pulsing going on, right?