Re: sega outrun stuck in reset

Sounds like you need to disable the watchdog.. does the schematic show
a diable to the watchdog circuit? In some cases I've had to desolder
and raise a pin in the circuit to get it to stop barking.

On 4/24/05, tony <tony@htbsusa.com> wrote:
>
> i can not get the board to run at all it is stuck in a reset
> if i tie the hault and reset high i still can not get the 9010 to go past
> the first address
> something is sending a rest pulsing and the screen just flashes with garbage
> lines on it
> i pulled all roms and checked them in a programmer
> and tried swaping out the proms with ones on a known good board
> also swapped the cpu board with a know good one so i know the problem is in
> the cpu board
> and the video board is good
> i tried to bug trap all ttl 7400's in the reset circuit and replace any
> thing i found bad some 74ls116's
> is this a ram problem ?
> i am using a afterburner schematic i can not find the outrun one the cpu 1
> should be on the outside right ?
> how can i get the fluke to run to get this fixed
> thanks
> tony
>
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-- 
-Adam
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