« previous next »
Pages: 1 ... 4 5 [6] 7   Go Down

Author Topic: Sys 80 Non CPU boot/IRQ issue  (Read 3189 times)

0 Members and 4 Guests are viewing this topic.

Marty Machine

  • Guest
  • Trade Count: (0)
Re: Sys 80 Non CPU boot/IRQ issue
« Reply #75 on: May 30, 2009, 09:28:19 PM »
Quote from: MartyJ on May 30, 2009, 09:23:47 PM
Pin 34 on U5 held high.
Correct !

Quote
Pin 15 U5 held low
Pin 12 Z26 held high
Is the mod in between these 2 pins? they should both be low on the schematic...
Logged
Pages: 1 ... 4 5 [6] 7   Go Up
« previous next »