| Electronics > Repair |
| Fluke 199C scopemeter repair |
| << < (10/27) > >> |
| feedback.loop:
In the previous video this original Fluke memory module was taken apart to trace connections on the board and to read FLASH chips. In this episode the module was put back together. |
| Per Hansson:
Very nice job! Will you experiment with trying to make an external programmer for it now as some people theorized would be possible? Would be nice to be able to make a safety backup of the CAL constants of the meter I have :) |
| feedback.loop:
--- Quote from: Per Hansson on June 20, 2021, 09:47:28 am ---Very nice job! Will you experiment with trying to make an external programmer for it now as some people theorized would be possible? Would be nice to be able to make a safety backup of the CAL constants of the meter I have :) --- End quote --- That would be nice to have, but that is another project. So far I could not find a suitable connector. 40x2=80 pins 0.8mm pitch 1.2mm slot. |
| Per Hansson:
There is only one connector on Mouser with a pitch of 0.8mm, but the slot seems to be 1.0mm: https://www.mouser.com/ProductDetail/TE-Connectivity/440360-2?qs=WZRMhwwaLl8LRBi%2FdA7C5w%3D%3D |
| feedback.loop:
It seems that DigiKey ran out of CY62146G30-45BVXI RAM chips I bought for my first version for about $2/piece. Similar Cypress chips are $7.7/piece. So I looked around and found ISSI IS62WV25616EBLL-45BLI for $3.55/piece. I ordered a few chips, and built one more memory module. Works fine. |
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