This is a Sinclair ZX Spectrum 48k home computer released in 1982.

I bought this one new in the mid 80’s. (This is an issue two.)
When i upgraded to a C64 i sold it to one of my cousins.
I got it back a couple of years later when my cousin was not using it anymore.
Then it has been in storage ever since.

It is booting, but with a distorted image.
It only has RF output via an RCA on the backside.
But since i want to use composite video, i will have to do a mod. 🙂

The keyboard membrane connectors were bad, so i could not try anything else but to power it up.
(I have ordered a new membrane from the UK, and i will replace it when it arrives.)

All the capacitors will be replaced as well.
(Same here, had to order some and will replace them later.)

I did the composite mod and tried it on my monitor.
Much better, but with a yellowish tone.
I will adjust the VR1/VR2 when the caps have been replaced to see if this will fix it.

To be continued. 🙂