Hey Birt! | Dodgy Bodgy? A very hungry TRS-80 26-3612, RS-232 Interface (Sharp CE-158) @HeyBirt | Uploaded December 2022 | Updated October 2024, 6 hours ago.
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In this video we take a look at a TRS-80 26-3612 RS-232 interface for the PC-2. It appeared to be a NIB find but does not work. When trying to power on it has excessive current draw. The fix was accidental and surprising leading to discovering a very odd factory mod. I still have no idea what this factory mod was for.
Timeline:
00:00 – Welcome
01:37 – Problem description and demonstration
06:00 – Research and DC-DC convertor secondary testing
08:11 – Testing primary side of DC-DC convertor. It magically works!
12:37 – Testing operation, loading a program from PC.
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Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
Video sponsor: PCBWay: $5 for 2 layer PCBs with 24hr turnaround at pcbway.com
In this video we take a look at a TRS-80 26-3612 RS-232 interface for the PC-2. It appeared to be a NIB find but does not work. When trying to power on it has excessive current draw. The fix was accidental and surprising leading to discovering a very odd factory mod. I still have no idea what this factory mod was for.
Timeline:
00:00 – Welcome
01:37 – Problem description and demonstration
06:00 – Research and DC-DC convertor secondary testing
08:11 – Testing primary side of DC-DC convertor. It magically works!
12:37 – Testing operation, loading a program from PC.
Please consider clicking on the Subscribe button below and then click the bell icon. That way you will be notified when I post a new video. Thanks!
Help support Hey Birt!
heybirt.com - merch
paypal.me/HeyBirt
patreon.com/heybirt
subscribestar.com/hey-birt
Hey Birt! On Social Media!
Facebook:
Soigeneris: facebook.com/Soigeneris-295527583797729
Hey Birt!: facebook.com/HeyBirt
Twitter:
Hey Birt!: twitter.com/HeyBirt?lang=en
Links
Amazon Associated Links Tools:
Fiberglass pen: amzn.to/3pWRzIk
Fiberglass pen refills: amzn.to/3RgqGdQ
OWDEN Hollow punch set: amzn.to/3PXzTXW
Battery Spot Welder: amzn.to/3QMaG3T
Hotplate: amzn.to/3rxOtLU
Spudger set I use: amzn.to/3z19pM7
Heat mats: amzn.to/3boKDwl
Amazon Associated Links Chemicals:
303 Aerospace Protectant: amzn.to/3BxRa5Y
CiaKot: amzn.to/3CvVKiY
Overcaot Pen: amzn.to/3s439Bt
Novus Plastic Polish: amzn.to/2VwtFaV
Electronics / PCB cleaner: amzn.to/3ORx62D
Citric Acid: amzn.to/3krkgdt
Amazon Associated Links Parts / Supplies:
Foam sheet, 1mm: amzn.to/37CfTtt
Uxcell shrink wrap: amzn.to/3boKJEd
NiMh tabbed Sun-C: amzn.to/3nHCbxL
NiMh tabbed AA: amzn.to/3OMjBkW
uxCell strain reliefs: amzn.to/3nJ5AaP
3M Double sided tape: amzn.to/3rYCxBX
Noctua 80mm NF-A8 FLX fan: amzn.to/3ASVhsJ
Credits
Chiptune Thing No. 3 "Victory" by Steven O’Brien soundcloud.com/stevenobrien
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b...
Music provided by Music for Creators youtu.be/ujIMRIJ1JG8
