EEVblog

EEVblog 1664 – REPAIR with Junk Bin Parts! Keithley 2302

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Repair of a Keithley 2302 battery simulator with junk bin parts. But it did put up a fight!

Teardown video: https://www.youtube.com/watch?v=5LK8wduZsy0

Forum: https://www.eevblog.com/forum/blog/eevblog-1664-repair-with-junk-bin-parts!-keithley-2302/

00:00 – Faulty VFD display in a Keithley 2302 Battery Simulator

01:22 – Teardown
03:14 – The Display driver PCB
04:30 – Solder Sucking Sucks
05:26 – The VFD display module, a Newhaven Display VFM162SDAR8
06:50 – Probing Pro Tip
07:28 – Probing the VFD signals on the oscilloscope
09:42 – Searching for a replacement 16×2 VFD display
15:03 – Potential replacement LCD
16:38 – Identical replacement found
17:44 – Lets check the junk bin…
18:33 – Pinout trap for young players
19:25 – First test FAIL, but hold on a second, lets try something…
21:09 – Winner Winner Chicken Dinner
22:12 – WOAH, now it’s not working?
24:09 – Lets try THIS…

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EEVblogBy David L. Jones
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