Title: Kramer pcb troubleshooting help please Post by: mike11 on August 18, 2013, 07:16:45 AM I have a Kramer poker here I'm trying to get up and running and all I get is a gray screen ...... I've swapped the 8080 with a known good z80 along with reburned the Roms and still nothing ....... Anyone know these boards that can help. ??
Thanks Title: Re: Kramer pcb troubleshooting help please Post by: asgard on August 18, 2013, 05:29:02 PM You can't substitute a Z80 for a 8080, they are different. Try a working 8080 and see what happens.
Title: Re: Kramer pcb troubleshooting help please Post by: mike11 on August 18, 2013, 05:31:22 PM You can't substitute a Z80 for a 8080, they are different. Try a working 8080 and see what happens. You can't substitute a Z80 for a 8080, they are different. Try a working 8080 and see what happens. You can't substitute a Z80 for a 8080, they are different. Try a working 8080 and see what happens. I learned that the hard way...... I think I cooked a good z80 in the process too...... I'm gonna root around for an 8080 and see what happens ill keep you posted .... Thansk Title: Re: Kramer pcb troubleshooting help please Post by: mike11 on September 04, 2013, 09:55:48 PM K put a new 80 80 in and still have the same issue.......... poked around with the scope a bit and have 5 -5 and 12 going to it and 5 going to all the roms all though it seems alot og the outputs on the roms and 8080 have no activity... i did reburn 3 of the 4 roms with files form rom nation...... I was able to reburn the 12/18/31 I didnt have a chip for the u51..... still same thing...... Where do I go next... This is driving me nutz..... its more of a want to conquor this and fix it more than anything........
Title: Re: Kramer pcb troubleshooting help please Post by: asgard on September 07, 2013, 12:38:11 AM Can you post a pic of the board ?
Title: Re: Kramer pcb troubleshooting help please Post by: mike11 on September 07, 2013, 03:28:15 AM pic attached
Title: Re: Kramer pcb troubleshooting help please Post by: mike11 on September 07, 2013, 03:28:56 AM Can you post a pic of the board ? see the pic i posted thx |