(Topic ID: 207613)

System 80b alphanumeric display missing digits

By bmsx

6 years ago



Topic Stats

  • 6 posts
  • 3 Pinsiders participating
  • Latest reply 6 years ago by cfh
  • Topic is favorited by 1 Pinsider

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#1 6 years ago

Hi,
I have an issue with Gottlieb sys80b alphanumeric display. It have empty spots like on photo (auto test):
tqZv7XB (resized).jpgtqZv7XB (resized).jpg

Data is correct. Some of digits are darker.
It's glass broken or swapping chips will help? If it's chip problem, which one? U1-U5

jQdg2Ry (resized).jpgjQdg2Ry (resized).jpg

No visual damage found. Connectors are clean. Ground mod done.

#3 6 years ago

Thank you for reply. Of course it's digits problem. My language mistake.

3 weeks later
#4 6 years ago

Thank you for advice. I changed U1 with U2 and I think this is it! Problem moved to lower display. I ordered new chips. When they arrive I'll confirm repair.

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1 month later
#5 6 years ago

Repair confirmed =]

WP_20180327_19_48_51_Pro (resized).jpgWP_20180327_19_48_51_Pro (resized).jpg

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