EEVblog 1665 - Keithley VFD REPAIR 2 - Electric Boogaloo

Part 2 of the Keithley 2302 battery simulator repair of the VFD display.
Just a follow-up on testing the actual VFD display itself to see if there is any fault that's not the VFD vacuum.

00:00 - Having another look at the failed Newhaven VFD dispaly module
05:37 - Measurign voltages
07:32 - Oscilloscope probing
08:33 - HELLO capacitor! But not the one I expected.
12:25 - To the SMD cap replacement kit
13:11 - Rail measurements again
14:38 - Big ripple improvement, but lets qild the lilly.
15:53 - Bugger! Ok, let's try the belt'n'braces approach.
17:21 - Winner Winner Extra Chicken Dinner!

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

How VFD Displays Work: https://www.youtube.com/watch?v=gZIRPJt69sM
Hacking a VFD Display: https://www.youtube.com/watch?v=clUVEyi_YNM

Web Site: http://www.eevblog.com
Hardware Store: https://eevblog.store/
Merch Store: https://www.teepublic.com/stores/eevblog?ref_id=37825

If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog
Or with crypto:
BTC: 33BsprBQNBtHuVzVwDmqWkpDjYnCouwASM
ETH: 0x68114e40ff4dcdd384750500501e20acf3875f8c
BCH: 35n9KBPw9T7M3NGzpS3t4nUYEf9HbRmkm4
USDC: 0x68114e40ff4dcdd384750500501e20acf3875f8c
LTC: MJfK57ujxy55su4XicVGQc9wcEJf6mAoXF

Other channels:
EEVblog2: http://www.youtube.com/EEVblog2
EEVdiscover: https://www.youtube.com/eevdiscover

#ElectronicsCreators
...
https://www.youtube.com/watch?v=c_mmVFMXFQo