HELP !

4428 topics in this forum

1. mpu4 open circuits 1 2

   By stonyat421, October 22, 2014
   • 27 replies
   • 2.3k views
   • 
   • john_disco
   • October 26, 2014

2. MPU4 parts

   By Bobbidoo, August 10, 2011
   • 10 replies
   • 1.8k views
   • 
   • booze.net
   • August 18, 2011

3. MPU4 Parts identification?

   By Nigel21, March 25, 2009
   • 18 replies
   • 1.1k views
   • 
   • VINNY130172
   • September 7, 2009

4. MPU4 PAYOUT ISSUE

   By booze.net, July 17, 2009
   • 8 replies
   • 996 views
   • 
   • booze.net
   • July 21, 2009

5. Mpu4 payout issue

   By dazza2471, July 28, 2025
   • 2 replies
   • 284 views
   • 
   • dazza2471
   • July 28, 2025

6. MPU4 Payout repair help

   By sam20sam, September 21, 2013   

   • Components needed
   • 1 reply
   • 666 views
   • 
   • VINNY130172
   • September 21, 2013

7. MPU4 PIA hard test alarm? Help please

   By cashbeast, June 25, 2022
   • 8 replies
   • 709 views
   • 
   • cashbeast
   • June 26, 2022

8. MPU4 power supply

   By john leo, October 1, 2009
   • 2 replies
   • 908 views
   • 
   • VINNY130172
   • October 2, 2009

9. MPU4 Power Supply

   By chasnbons, December 3, 2012
   • 6 replies
   • 964 views
   • 
   • borgred
   • December 4, 2012

10. MPU4 Power supply

    By alex74, April 14, 2016
    • 2 replies
    • 829 views
    • 
    • alex74
    • April 15, 2016

11. MPU4 Power Supply Parts - Bridge Rec. - Viva Las Vegas

    By Red2five, March 24, 2019
    • 5 replies
    • 731 views
    • 
    • Red2five
    • March 25, 2019

12. Mpu4 power up issues

    By dazza2471, June 26, 2025
    • 5 replies
    • 658 views
    • 
    • dazza2471
    • June 27, 2025

13. mpu4 problem

    By brandon33, September 5, 2007
    • 24 replies
    • 2.3k views
    • 
    • MAGIK
    • September 8, 2007

14. MPU4 problems!!

    By andrew96, August 8, 2013
    • 4 replies
    • 996 views
    • 
    • mavroz
    • August 9, 2013

15. MPU4 PROGRAM MODULE SOUND ISSUE

    By booze.net, August 18, 2009
    • 6 replies
    • 913 views
    • 
    • VINNY130172
    • August 20, 2009

16. MPU4 Prom - Downgrade

    By kurtern84, January 15, 2022
    • 12 replies
    • 1k views
    • 
    • kurtern84
    • January 27, 2022

17. mpu4 prom card

    By roger821, August 5, 2011
    • 5 replies
    • 902 views
    • 
    • MAGIK
    • August 6, 2011

18. Mpu4 PSU

    By sam20sam, December 29, 2023
    • 1 reply
    • 15.1k views
    • 
    • fruit58
    • December 29, 2023

19. MPU4 PSU fuses

    By YadaYada, July 14, 2012
    • 9 replies
    • 1.9k views
    • 
    • jonwarby
    • July 17, 2012

20. mpu4 psu help

    By jpmstu, January 7, 2011
    • 10 replies
    • 1.2k views
    • 
    • dr slots
    • January 8, 2011

21. Mpu4 psu help 1 2

    By Ikhlaq, January 4, 2019
    • 35 replies
    • 2.5k views
    • 
    • warlord
    • January 19, 2019

22. MPU4 PSU low voltage

    By Matthew Potter, July 7, 2020
    • 1 reply
    • 758 views
    • 
    • MattyL
    • July 7, 2020

23. MPU4 PSU Repair

    By alex74, March 16, 2015
    • 12 replies
    • 1.1k views
    • 
    • quattrohead
    • March 19, 2015

24. MPU4 Red hot roll not accepting coins

    By Smokeoil, August 8, 2014
    • 11 replies
    • 1.4k views
    • 
    • Smokeoil
    • August 14, 2014

25. mpu4 red led on but does nothing else

    By jkrollin, September 4, 2013
    • 1 reply
    • 522 views
    • 
    • mavroz
    • September 4, 2013