Fixing a Sinclair ZX Spectrum +2 (Grey) Part 1

Fixing a Sinclair ZX Spectrum +2 (Grey) Part 1. This is going to be a journey and a half of getting this going.

I'd like to thank Jan Beta, and especially Retro Tech Ralph for their help in getting this Spectrum back up and running.

Their Channels are:-
https://www.youtube.com/JanBeta
https://www.youtube.com/RetroTechRalph

I first got the idea it was a memory error because of this site (Ralph backed up the idea) - http://hardware.speccy.org/reparar-i.html

The diagnostic rom can be download from here:-
https://github.com/brendanalford/zx-diagnostics/wiki/Firmware
Click the link "release package" under "How to Use".

Parts:
RGB SCART Cable: https://www.ebay.co.uk/itm/Sinclair-ZX-Spectrum-128K-2-Grey-Model-RGB-Scart-Lead-Video-Cable-TV-Lead-/260949446667
Memory - KM4164B-15 150ns
CPU - Z80A
470 ohms resistor
Cassette belts - https://www.ebay.co.uk/itm/Sinclair-ZX-Spectrum-2-Grey-Large-Small-Cassette-Drive-Belt-Set/124585286826
Eprom - 27C512 but 27C128 or 27C256 can be used
Cap kit and Thermal Glue - https://www.retroleum.co.uk/ (Look under 128)

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Patreon
https://www.patreon.com/RetroBoxRoom

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Discord Channel
https://discord.me/retroboxroom

You could of course do with having the app - https://discordapp.com/ Discord is a place to chat with like minded people! After the app is install on your PC/Phone/Tablet, you can just use a webpage if you're away from your own devices.

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All company names mentioned, are theirs, I'm just mentioning them in passing!
CREDIT: Subscribe Button by MrNumber112 https://youtu.be/Fps5vWgKdl0

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