(Topic ID: 134313)

Space Invaders two flashes on mpu board


By 04barb

3 years ago



Topic Stats

  • 8 posts
  • 5 Pinsiders participating
  • Latest reply 3 years ago by thedefog
  • Topic is favorited by 1 Pinsider

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#1 3 years ago

I had this board working then about 6 months ago I replaced the 5101 ram chip and socket. Now I'm back to two blinks again. This board has corrosion and I did the vinegar/water trick, but since then I have gotten a bead blaster. I don't think the 5011 ram chip just went bad by itself. I dread removing the socket because I had to stitch 2 or 3 traces, as I recall. Is there something else besides the corrosion coming back that would destroy 5101 ram chips?

#3 3 years ago

Okay, I will snap a picture. I replaced the 5101 ram with a new one and still only two blinks.

#5 3 years ago

IMG_20150728_090711.jpg

IMG_20150728_090702.jpg

IMG_20150728_090645.jpg

#6 3 years ago

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