Uploaded June 2026 | Updated September 2026, 3 days ago
After the disaster of Part 1, it's time to see if my Timex Sinclair 1000 can be saved.
In this episode, I install a composite video modification with back porch support, one of the most popular upgrades for the TS1000. The goal is simple: replace the original RF output with a clean composite video signal that modern displays can actually use.
Of course, things don't go quite as planned.
What should have been a straightforward installation turns into a lengthy troubleshooting session as I attempt to track down why the mod doesn't appear to be working. Along the way, we take a closer look at the hardware, the installation process, and what the back porch modification actually does for the TS1000's video output.
Will the modification work, or did I somehow manage to make an even bigger mess of things?
Join me as I continue the restoration and upgrade journey of this iconic little computer.
This video is Part 2 of my Timex Sinclair 1000 restoration and upgrade series.
Upcoming upgrades include:
New keyboard installation
TSR switching regulator upgrade
RAM expansion
Custom ROM experiments
And possibly adapting a TI-99/4A keyboard to the TS1000
After the disaster of Part 1, it's time to see if my Timex Sinclair 1000 can be saved.
In this episode, I install a composite video modification with back porch support, one of the most popular upgrades for the TS1000. The goal is simple: replace the original RF output with a clean composite video signal that modern displays can actually use.
Of course, things don't go quite as planned.
What should have been a straightforward installation turns into a lengthy troubleshooting session as I attempt to track down why the mod doesn't appear to be working. Along the way, we take a closer look at the hardware, the installation process, and what the back porch modification actually does for the TS1000's video output.
Will the modification work, or did I somehow manage to make an even bigger mess of things?
Join me as I continue the restoration and upgrade journey of this iconic little computer.
This video is Part 2 of my Timex Sinclair 1000 restoration and upgrade series.
Upcoming upgrades include:
New keyboard installation
TSR switching regulator upgrade
RAM expansion
Custom ROM experiments
And possibly adapting a TI-99/4A keyboard to the TS1000










