(Topic ID: 185746)

F14 issues rom or cpu?


By Nightrainjoe

2 years ago



Topic Stats

  • 6 posts
  • 4 Pinsiders participating
  • Latest reply 2 years ago by Nightrainjoe
  • No one calls this topic a favorite

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#1 2 years ago

Machine had Rottendog MPU board, new power supply board, new Rottendog LED display, new speech/sound and game ROMs. Put in the game ROM and CPU from old board and game somewhat boots. Did get a U27 rom failure at times. Get new ROMS from that pinball place and machine won't boot, swap out U27 for old rom and says U26 failure, which is the NEW game cpu rom. Can't read the display either unless it is giving a rom failure. Cannot get ahold of John Wart to see if I can get replacement game ROMs. CPU chips are Hitachi 6802, early production game with PROTO chips. PLEASE help. About to drive me crazy!

#2 2 years ago

Did the game work before? When you changed the roms did you put them in the correct way?

#3 2 years ago

I'll replace the roms. Hopefully that fixes the problem.

I apologize, 2017 has not been a kind year for my family and I have had a bit of a personal crisis I have been attending to. I am behind on a lot of things unfortunately.

I will get the roms sent out tomorrow.

#4 2 years ago

Crlush, not positive on the correct way they go in to be honest. The game would boot up before and would shut off beforetail the new boards. The old MPU board had some burn marks on it and once removed, the back had a jumper wire soldered on it. Top beacons are not complete and the gamerican knocker solenoid has both wires cut. I don't know exactly which way the roms go (writing right side up or upside down?) John Wart, no worries sorry to hear it has been a rough year so far. I just want to make sure I am installing things correctly. This is my first Rottendog board, I usually use Kohout boards and haven't had an issue with their stuff. Can't say I enjoyed putting my chips in a new board. Not sure why the new display is unable to read also.

#5 2 years ago

As far as installing ROMs properly, there's always a small "notch" on one end of the ROM chip. It should line up with the notch on the silkscreening behind the socket.

1 week later
#6 2 years ago

Johnwartjr, awesome! Put in the new ROMs from you and game works perfect! Thank you so much!

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