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(Topic ID: 215709)

System 11 mbu mpu advice

By jchybro

5 years ago



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  • 7 posts
  • 5 Pinsiders participating
  • Latest reply 2 years ago by pindel
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#5 2 years ago
 
???

pindel

Pinside member

12y 52,550 685

I have an issue with my HS mpu. The upper AN displays are missing a section of the middle segment. Any idea what chip drives this?
Thanks,
Del

644271F0-7A43-4416-8983-080E01CCD335 (resized).jpeg644271F0-7A43-4416-8983-080E01CCD335 (resized).jpeg
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#6 2 years ago
 
???

pindel

Pinside member

12y 52,550 685

I know it is an mpu issue and not the display board. It works fine with a different mpu

1 week later
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#7 2 years ago
 
???

pindel

Pinside member

12y 52,550 685

Big thank you to Quench for pointing me in the right direction. U41 sends the display signal out through ribbon cable. Just a solder blob across to pins caused missing segment.

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