space invaders 7 flashes but won't start

robotype

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after 7th blink it plays the normal sound and then freezes there, no digits on the display, lights stuck on and small coil on the coin door is constantly energized

http://www.youtube.com/watch?v=qivuPJfLeYo&feature=youtu.be

if I use roms u1 u2 from another game (750?) it works and I can coin up and play

I have burned two D2716 (intel) for u1 and u2 but it doesn't work at all, led stays on

If I read original roms I get FF FF FF FF so I am obviously missing something

any idea?
 
Does the MPU have the correct jumpers for the 2716's. If the set it boots with are anything but 2716's you need to change the jumpers.
http://techniek.flipperwinkel.nl/ballyss/rep/index3.htm#35roms

thanks! something I am couldn't understand clearly is: original 9316 maskroms and 2716 generic eproms do share the same jumpr settings or not?

looking at the table looks like I have to move jumpers to use eproms

_U2_______U6_______U1________MPU Board Jumpers in numberic order
9316_____9316_____9316_____1-4,2-6,7-8,9-11,12-36,13-15,16a-19,31-32,33-34
2716______________2716_____1-5,2-4,7-8,10-12,16a-18,31-32,33-35

edit:

I found a simple explanation

http://www.mikesarcade.com/cgi-bin/spies.cgi?action=url&type=info&page=9316.txt
 
Last edited:
2716 and 9316 jumpers are different.



U2.....U6.....U1.....jumpers
2716 2716 2716 1-5,2-4,7-8,10-12,11-25,13a-14,16a-18,31-32,33-35 cut 13-15
2716 9316 2716 1-5,2-4,7-8,10-12,11-25,13a-14,16a-19,31-32,33-34 cut 13-15
 
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