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Title: Donkey Kong PCB issue Post by: Kaboom on March 30, 2016, 09:18:30 am Hi All, Picked up a replacement DK PCB to replace a Double DK PCB in my machine and when I plugged it in I got the following display -
(http://s13.postimg.org/5o5bot8l3/20160330_093816_1.jpg) I tried re-seating all the chips and connectors. Was told this was a working board when I bought it. Any direction would be appreciated. Thanks. Title: Re: Donkey Kong PCB issue Post by: John's Arcade on March 30, 2016, 10:23:35 am Hi All, Picked up a replacement DK PCB to replace a Double DK PCB in my machine and when I plugged it in I got the following display - (http://s13.postimg.org/5o5bot8l3/20160330_093816_1.jpg) I tried re-seating all the chips and connectors. Was told this was a working board when I bought it. Any direction would be appreciated. Thanks. Did you check your voltages? I had a DK3 that was doing that after being in storage for a couple of years. I had to reseat all the chips to get it working again. Took several tries too. Title: Re: Donkey Kong PCB issue Post by: Kaboom on March 30, 2016, 10:57:39 am I did find the z80 chip had a broken leg and swapped that out. Improved the video image but still needs work. I will double check my voltages next... thanks for the advice!
Title: Re: Donkey Kong PCB issue Post by: Kaboom on March 31, 2016, 12:41:03 pm Found an eprom with a broken leg. I'm now considering buying an eprom programmer and have been looking on ebay but I'm not sure what is good and what is junk. Any advice on what I should buy? Thanks.
Title: Re: Donkey Kong PCB issue Post by: HarrieD on April 01, 2016, 03:32:12 pm Got this one:
http://nl.aliexpress.com/item/High-Speed-TL866CS-Programmer-USB-EPROM-EEPROM-FLASH-BIOS-AVR-AL-PIC/32479845822.html?spm=2114.48010208.4.6.ttSaBC (http://nl.aliexpress.com/item/High-Speed-TL866CS-Programmer-USB-EPROM-EEPROM-FLASH-BIOS-AVR-AL-PIC/32479845822.html?spm=2114.48010208.4.6.ttSaBC) Only use it for programming pinball eproms from 2716 to 27c040. Don't know what DK uses. Title: Re: Donkey Kong PCB issue Post by: Kaboom on April 02, 2016, 01:19:29 pm Got this one: http://nl.aliexpress.com/item/High-Speed-TL866CS-Programmer-USB-EPROM-EEPROM-FLASH-BIOS-AVR-AL-PIC/32479845822.html?spm=2114.48010208.4.6.ttSaBC (http://nl.aliexpress.com/item/High-Speed-TL866CS-Programmer-USB-EPROM-EEPROM-FLASH-BIOS-AVR-AL-PIC/32479845822.html?spm=2114.48010208.4.6.ttSaBC) Only use it for programming pinball eproms from 2716 to 27c040. Don't know what DK uses. Thanks for pointing this out to me... much appreciated! |