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Author Topic: Ms. Pac Man to Pac Man?  (Read 7782 times)
Level42
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« Reply #15 on: August 27, 2010, 02:39:40 PM »

Try to rebuild it as Ms.Pac. So processor back on the extension board, insert the ribbon cable into the processor socket again and re-install the two EPROMs you removed. Do I dare to say that you should take great care that everything mentioned above is to be put in the right orientation ?

If it works, you are lucky and probably only the new Pac Man Eproms are damaged...

Also, you did put the correct EPROM in the correct location right ? So 5F at 5F and 5E at 5E and not the other way around....
« Last Edit: August 27, 2010, 02:45:04 PM by Level42 » Logged

gyruss
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« Reply #16 on: August 27, 2010, 02:49:59 PM »

I also think they are damaged, I tried them on RR his pac man pcb and they didn't work.
I was thinking the problem was his very instable pcb that's why I gave them to you.

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Level42
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« Reply #17 on: August 27, 2010, 03:11:50 PM »

I also think they are damaged, I tried them on RR his pac man pcb and they didn't work.
I was thinking the problem was his very instable pcb that's why I gave them to you.




Uhhh..wait a minute, I'm not following......so let me tell you what I was _assuming_ :
I thought that Gyruss did a "group" order with Hobbyroms for Pac Eproms and that one set was for Muerto ? Thus I was assuming that they were GOOD and tested (by hobbyroms) before shipping them.
But now I understand there were already doubts about the EPROMs ?
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Muerto
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« Reply #18 on: August 27, 2010, 03:37:56 PM »

correct! - the deal was if they worked i would transfer some money to gyruss......
but it look´s like they don´t...

Would you able to re-burn them André??
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gyruss
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« Reply #19 on: August 27, 2010, 03:54:27 PM »

There were indeed from hobbyroms, i order 3/4 times before and everything worked great. I guess the problem are the roms and not the pcb.
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Muerto
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« Reply #20 on: August 27, 2010, 03:56:59 PM »

i just switched back to the Ms. Pac Man, and now i can see sprites, but there´s something wrong with the graphics....
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Level42
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« Reply #21 on: August 27, 2010, 04:05:38 PM »

I think we may assume that the EPROMs were OK before they were inserted the wrong-way-round.
I also think we may assume they are dead now. Yes Michael I can at least try to read them now and once my UV eraser is here I can also clear them and re-program them. I wouldn't keep up my hopes high though and it may be better to burn some new one's. I will see if I have some, regretfully they are the 2516 IIRC and not 2716 but let's see.

Alternatively I can also re-program the Ms. Pac to Pac Man one's of course....

Doesn't sound to good about the PCB....there may be something else hurt  roll eyes
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italiandoh
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« Reply #22 on: August 29, 2010, 02:01:08 AM »

hmmm...

Turned the E5 and F5 around..... and woila! - no change...

Of course, those eproms are faulty now. It takes just a few seconds to toast them while inserted the wrong way around.

Matteo
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baritonomarchetto
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« Reply #23 on: August 30, 2010, 06:20:20 PM »

If i was closer, i could also take a look and re-burn your EPROMs man  confused
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"A true Gentleman leaves no puzzle unsolved"
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« Reply #24 on: August 30, 2010, 07:24:26 PM »

Michael, send me the original Ms.Pac EPROMs and I will fix that part of the problems. Not sure about the other board failure though...
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Muerto
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« Reply #25 on: August 30, 2010, 07:41:28 PM »

ok, thanks, but i´m not home the next 14 days  Undecided so it will take some time before you get them!
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