Photo: robin
  1. » Forum
  2. » Tech
  3. » Tech: Generic
  4. » Rottendog MPU004 NVRAM Question
(Topic ID: 285280)

Rottendog MPU004 NVRAM Question

By Dimperio620

3 years ago


Topic Heartbeat

Topic Stats

You

Linked Games

No games have been linked to this topic.

    Topic Gallery

    View topic image gallery

    Untitled (resized).png
    Untitled (resized).png
    schematic.jpg
    rdp5 (resized).jpg

    You're currently viewing posts by Pinsider eyeamred2u.
    Click here to go back to viewing the entire thread.

    0
    0
    0
    #9 3 years ago
     
    KJO

    eyeamred2u

    Pinside+ Frequent

    US Cleveland, OH

    7y 74,800 2,851 5

    OP
    Quoted from Dimperio620:

    I recently installed a Rottendog MPU004 board in my Data East Seacret Service pinball machine. To get the board to boot I had move the jumper from J5 to J4. The board boots and plays but I can't save the settings. When I tried to boot the board with the NVRAM chip (RAMtron) that came with the board it wouldn't boot. The PIA light would continue to flash. I also tried putting a "anyPin" NVRAM at that location and it did the same thing as the NVRAM that was supplied with the board. I know I have the "anyPin" NVRAM jumper correctly for the 6264 configuration. The board does boot and play when I use the chip located at U36 that was in my Secret Service machine. I think this has to to with the size of the chips being used but I'm not sure. Does someone know what I'm doing wrong here?
    [quoted image]

    Reach out to Chris Hibler

    You're currently viewing posts by Pinsider eyeamred2u.
    Click here to go back to viewing the entire thread.

    Reply

    Wanna join the discussion? Please sign in to reply to this topic.

    Hey there! Welcome to Pinside!

    Donate to Pinside

    Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!

    This page was printed from https://pinside.com/pinball/forum/topic/rottendog-mpu004-nvram-question?tu=eyeamred2u and we tried optimising it for printing. Some page elements may have been deliberately hidden.

    Scan the QR code on the left to jump to the URL this document was printed from.