Uploaded December 2024 | Updated September 2026, 2 weeks ago
Workshop Project #40 - HP 4951C Protocol Analyzer
I have serveral devices in my pipeline that have a RS-232 port for data transfer. For that reason, I kept an eye out for a device that might be able to decode - or visualize - that data between the sender and receiver.
When one of these HP protocol analyzers came around for less than 100 Euro, I had to jump on it! Now, let's see if that litle device could...
0:00 Intro / Overview / Unpacking
1:53 Accessory Bag / Pod and Keyboard Overview / Pod Disassembly
3:13 Main Case Open / Overview / Floppy Removal / Front Panel
4:55 PCB Removal and Overview
6:03 Backpanel Disassembly
6:55 Floppy Drive Disassembly
10:04 Floppy Drive Cleanup / Assembly
14:05 CRT Removal / Keyboard Opening / Key-Caps Pulling
15:54 Parts Cleanup!
17:08 Recapping Time!
18:20 Buffer Battery
20:01 V.35 Pod! / Inventory Sticker
21:02 Mains Filter Replacement
22:09 Fan / Back Panel Connectors
24:08 Main PCB / Back Panel Assembly
25:01 Floppy Controller Chips / Keyboard Assembly
26:14 High Voltage Warnings? What? / CRT Mounting
27:39 Memory Module / Floppy Controller $$§**! / Improvised Test Setup
28:38 Power On! / CRT Focus and Brightness Adjustment / Mains Filter Update...
30:25 Keybaord Mounting / Pod Test / Pod Assembly / Closing Keyboard
32:21 Drive Mounting / Case Closed / Accessory Bag
33:45 Test Run: HELLORLD!
35:15 Summary / Credits / Outtake
Music (in order)
My Train's A Comin' - Unicorn Heads
Nine Lives - Unicorn Heads
Wrong - Dan Henig
Town of 24 Bars - Unicorn Heads
Light Expanse - Unicorn Heads
(YouTube Audio Library)
USB connector chart from commons.wikimedia.org/wiki/File:USB_2.0_and_3.0_connectors.svg
You can support me on Ko-Fi: ko-fi.com/atkelar
and also on Patreon: patreon.com/Atkelar
and now also here by using the "Super Thanks" feature!
Thanks to everybody who signed up already!
Workshop Project #40 - HP 4951C Protocol Analyzer
I have serveral devices in my pipeline that have a RS-232 port for data transfer. For that reason, I kept an eye out for a device that might be able to decode - or visualize - that data between the sender and receiver.
When one of these HP protocol analyzers came around for less than 100 Euro, I had to jump on it! Now, let's see if that litle device could...
0:00 Intro / Overview / Unpacking
1:53 Accessory Bag / Pod and Keyboard Overview / Pod Disassembly
3:13 Main Case Open / Overview / Floppy Removal / Front Panel
4:55 PCB Removal and Overview
6:03 Backpanel Disassembly
6:55 Floppy Drive Disassembly
10:04 Floppy Drive Cleanup / Assembly
14:05 CRT Removal / Keyboard Opening / Key-Caps Pulling
15:54 Parts Cleanup!
17:08 Recapping Time!
18:20 Buffer Battery
20:01 V.35 Pod! / Inventory Sticker
21:02 Mains Filter Replacement
22:09 Fan / Back Panel Connectors
24:08 Main PCB / Back Panel Assembly
25:01 Floppy Controller Chips / Keyboard Assembly
26:14 High Voltage Warnings? What? / CRT Mounting
27:39 Memory Module / Floppy Controller $$§**! / Improvised Test Setup
28:38 Power On! / CRT Focus and Brightness Adjustment / Mains Filter Update...
30:25 Keybaord Mounting / Pod Test / Pod Assembly / Closing Keyboard
32:21 Drive Mounting / Case Closed / Accessory Bag
33:45 Test Run: HELLORLD!
35:15 Summary / Credits / Outtake
Music (in order)
My Train's A Comin' - Unicorn Heads
Nine Lives - Unicorn Heads
Wrong - Dan Henig
Town of 24 Bars - Unicorn Heads
Light Expanse - Unicorn Heads
(YouTube Audio Library)
USB connector chart from commons.wikimedia.org/wiki/File:USB_2.0_and_3.0_connectors.svg
You can support me on Ko-Fi: ko-fi.com/atkelar
and also on Patreon: patreon.com/Atkelar
and now also here by using the "Super Thanks" feature!
Thanks to everybody who signed up already!
