EEVblog 1664 - REPAIR with Junk Bin Parts! Keithley 2302

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 16x2 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...