Calling all I, Roboters! I need your help!

JuanUp

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Can someone please take an ohm meter test from pin 2 or B from the CPU edge connector to pin 8 on 4A and tell me your readings? This is assuming you have a working I, Robot, (unlike mine). :)

By the way, please tell me actual readings and not your assumptions. :)

Thanks!
Juan
 
Can someone please take an ohm meter test from pin 2 or B from the CPU edge connector to pin 8 on 4A and tell me your readings? This is assuming you have a working I, Robot, (unlike mine). :)

By the way, please tell me actual readings and not your assumptions. :)

Thanks!
Juan

What are your readings....Just curious
 
I'm getting 50 - 70 ohms from +5 to GND. Tracked it down to upper right corner that has least resistance. Either way, I'd like to know what 'normal' is. :). Video board is around 200 - 250 ohms.

I'm at work now so I can't remember the exact numbers.

The game powers up but the mathbox is shittin' out. 'Y Timeout' & 'VP Won't Reset'. The ICs pulse at 60uS from test points suggested.
 
Last edited:
Huge thanks to ChaosJohn for verifing this for me! Turns out it does only draw 60 - 80 ohms on the CPU board. Now it looks like I might have found the problem! Wish me luck. It's been a long road... longer than the Stargate repair! :)

Thanks again!
Juan
 
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