REQUESTS

2437 topics in this forum

1. Mpu4 mod2

   By Swago, January 15, 2024
   • 1 reply
   • 37.6k views
   • 
   • Phil1974
   • January 15, 2024

2. MPU4 Mod4 Battery Problem

   By LaRie, July 24, 2012   

   • MPU4
   • Battery
   • (and 2 more)

     Tagged with:

     • MPU4
     • Battery
     • Corrosion
     • Expert
   • 11 replies
   • 2k views
   • 
   • stevelancett
   • July 24, 2012

3. mpu4 mod4 board required please

   By rfnutta79, October 3, 2014   

   • barcrest
   • mpu4
   • (and 1 more)

     Tagged with:

     • barcrest
     • mpu4
     • mod4
   • 5 replies
   • 1.5k views
   • 
   • rfnutta79
   • October 4, 2014

4. mpu4 mux board and mpu?

   By twarr, November 13, 2019
   • 0 replies
   • 686 views
   • 
   • twarr
   • November 13, 2019

5. MPU4 PDF for circuit board wanted please

   By Nicko, November 7, 2019
   • 2 replies
   • 754 views
   • 
   • Nicko
   • November 8, 2019

6. MPU4 Pot Luck (Pot LED)

   By booze.net, June 13, 2012
   • 15 replies
   • 1.6k views
   • 
   • cyberbob
   • June 17, 2012

7. MPU4 power supply + display

   By smccullie, July 15, 2012
   • 8 replies
   • 1.3k views
   • 
   • VINNY130172
   • July 22, 2012

8. Mpu4 power supply fuse holder

   By dazza2471, June 18, 2025
   • 3 replies
   • 375 views
   • 
   • dazza2471
   • June 19, 2025

9. MPU4 Program Card

   By JohnS, September 10, 2013
   • 12 replies
   • 1.1k views
   • 
   • Player
   • September 15, 2013

10. Mpu4 program card

    By dazza2471, June 29, 2025
    • 9 replies
    • 646 views
    • 
    • dazza2471
    • July 2, 2025

11. MPU4 program module needed

    By paulgee, August 17, 2010
    • 5 replies
    • 1k views
    • 
    • paulgee
    • August 25, 2010

12. mpu4 psu capacitors

    By sulzerned, July 24, 2012
    • 5 replies
    • 1.3k views
    • 
    • sulzerned
    • July 24, 2012

13. MPU4 PSU FUSES 1 2

    By booze.net, January 26, 2011
    • 31 replies
    • 4.9k views
    • 
    • dr slots
    • January 31, 2011

14. MPU4 PSU Repair

    By Richy20, February 9, 2015
    • 23 replies
    • 2.1k views
    • 
    • sulzerned
    • February 17, 2015

15. MPU4 reel board diodes

    By midibob, March 14, 2021
    • 6 replies
    • 980 views
    • 
    • midibob
    • March 14, 2021

16. MPU4 Reel c alarm

    By carl30.1, June 19, 2012
    • 3 replies
    • 1.2k views
    • 
    • crackpot60
    • June 22, 2012

17. MPU4 Rol-A-Top ROM

    By booze.net, June 21, 2024
    • 24 replies
    • 21.5k views
    • 
    • Geddy
    • July 30, 2025

18. MPU4 rom cart circuit diagram 1 2

    By launton, November 8, 2010
    • 38 replies
    • 7.6k views
    • 
    • Amot
    • October 16, 2020

19. MPU4 ROM HACKING

    By orchid, October 13, 2009
    • 12 replies
    • 1.7k views
    • 
    • orchid
    • October 17, 2009

20. MPU4 ROMS

    By booze.net, July 23, 2010
    • 3 replies
    • 717 views
    • 
    • booze.net
    • August 7, 2010

21. MPU4 Schematics

    By superbank, April 24, 2020
    • 12 replies
    • 1.3k views
    • 
    • MakinTrix21
    • May 1, 2020

22. MPU4 service manual

    By MrMadness, August 23, 2017
    • 3 replies
    • 998 views
    • 
    • sulzerned
    • September 26, 2017

23. MPU4 Sound Chip

    By sam20sam, August 4, 2011
    • 1 reply
    • 720 views
    • 
    • Bobbidoo
    • August 4, 2011

24. MPU4 Sound Chip AY 3 8912 A

    By sam20sam, March 11, 2012
    • 16 replies
    • 1.4k views
    • 
    • bigtime2u
    • March 18, 2012

25. MPU4 Test Jig Software 1 2

    By Homer_1209, May 28, 2019
    • 45 replies
    • 3.4k views
    • 
    • Homer_1209
    • June 6, 2019