Re: Trying my hand at centipede

Well that seems OK. Stumped why this thing won't run..
On May 27, 2012 10:26 AM, "Kevin Moore" <talon.k@gmail.com> wrote:

> Just realized you probably meant the IRQ it's ticking, but the flip flop
> that feeds it seems to have /irqres stuck high. Not sure if it's supposed
> to be that way or not. I'll probe that section.
>
> Kevin
>
>
> On Sun, May 27, 2012 at 9:40 AM, Rodger Boots <rlboots2@gmail.com> wrote:
>
>> Did you look at the microprocessor interrupt pin?
>> On May 27, 2012 1:40 AM, "Kevin Moore" <talon.k@gmail.com> wrote:
>>
>>> I've got a Centipede that just won't play.
>>>
>>> You can get it to show the highscore table, and a field of mushrooms.
>>>
>>> No attract screen runs.
>>> test mode does not indicate any errors.
>>>
>>> Can input coins but can't use p1 or p2
>>>
>>> So far
>>> Voltages good
>>> Rom tests good.
>>> Long Ram test good. 0000-07FF
>>> I did go through signature analysis since it was on the schematics,
>>> those check good.
>>>
>>> Replaced CPU and Pokey jic.
>>>
>>> Clocks appear good.
>>>
>>> This board was running, it had sync problems which were repaired, worked
>>> for a few months.
>>>
>>> :(
>>>
>>> Kevin
>>>
>>>
>

---------------------------------------------------------------------------
** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org
** Please direct other questions, comments, or problems to chris@westnet.com
Received on Sun May 27 12:19:11 2012