An Obvious RAM Fault? Toastrack Repair with Suspect Ram

A Sinclair ZX Spectrum 128k "Toastrack" has a suspiciously familiar looking fault. Sent to me by Paul Universal Retro Boss my immediate thought is the ram is faulty. Normally this leads to the conclusion that something else entirely different is wrong! But this time I might just be right! Fixing stuff is FUN! SECOND CHANNEL! @morefunmakingit2 Ko-fi page https://ko-fi.com/morefunmakingit Amazon Wishlist https://www.amazon.co.uk/hz/wishlist/ls/I5EGNMXIW5PC?ref_=wl_share Discord Channel https://discord.gg/5fmPMzU More Fun Website https://www.morefunmakingit.co.uk/ My Twitterings can be found here (RETIRED) https://twitter.com/morefunmakingit Facebook https://www.facebook.com/MoreFunMakingIt BlueSky https://bsky.app/profile/morefunmakingit.bsky.social