« previous next »
Pages: 1 2 [3]   Go Down

Author Topic: Skateball (MPU) resistor TECH  (Read 892 times)

0 Members and 4 Guests are viewing this topic.

Offline tomdotcom

  • Trade Count: (0)
  • ***
  • Forum Posts:
    • Canada
Re: Skateball (MPU) resistor TECH
« Reply #30 on: November 08, 2009, 02:47:43 PM »
Okay I got a logic probe from a friend. Never used on though. It has a black lead and a red lead. I'm not exactly sure how or where to put the leads so I can probe the U11 chip.

Red is supposed to go to +5vdc and black to ground.

What settings do I put the probe on?

TTL & Pulse?
Logged
=-= PINS: Swords of Fury, Fish Tales, Addam's Family, Getaway HS2, DE Time Machine, World Cup Soccer 94, Skateball =-=

=-= VIDS: Zeke's Peak, Custom mame cab =-=

Offline tomdotcom

  • Trade Count: (0)
  • ***
  • Forum Posts:
    • Canada
Re: Skateball (MPU) resistor TECH
« Reply #31 on: November 08, 2009, 03:45:57 PM »
Ok I'm pulling my hair out :/ Now when I turn it on the center drop
target coils keep firing every few seconds and some sound plays but
you can't start a game or anything. I must have some MPU issues. There
was some shoddy work done on it. Maybe I just need to send it in for
repair. Think that may be my best bet at this point.
Logged
=-= PINS: Swords of Fury, Fish Tales, Addam's Family, Getaway HS2, DE Time Machine, World Cup Soccer 94, Skateball =-=

=-= VIDS: Zeke's Peak, Custom mame cab =-=
Pages: 1 2 [3]   Go Up
« previous next »