To check out PCBWay and their services: https://www.pcbway.com/
The first Spectrum is marked as 48k on the box, but it's actually a 16k!
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⚠️My videos are based on my personal experience and should not be interpreted as tutorials. Do not attempt to replicate my actions without the guidance of an expert.
⚠️In this video, certain repair procedures involve handling internal power supply components, including high-capacity capacitors that may retain an electric charge. These operations can be hazardous for those without proper technical expertise and should not be replicated without specific training and appropriate safety measures. Do not attempt to repeat these actions without the supervision of an expert.
🔗Things I use during my videos (affiliate links) :
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Isopropyl Alcohol: https://amzn.to/3U9BSgo
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Electrolytic Capacitor 2200uF: https://amzn.to/40T7Ot0
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🔗 Useful Sources for this video:
https://spectrumforeveryone.com/wp-content/uploads/2017/08/ZX-Spectrum-Service-Manual.pdf
https://www.circuits-diy.com/4116-16k-video-ram-datasheet/
https://spectrumforeveryone.com/wp-content/uploads/2017/08/ZXSpectrumIssue12-Schematics.pdf
https://spectrumforeveryone.com/technical/zx-spectrum-ula-types/
https://rk.nvg.ntnu.no/sinclair/computers/zxspectrum/issues/issue1.htm
https://jucetize.weebly.com/versioni5.html
https://www.alessandrogrussu.it/zx/Spectrumpedia(English)-Volume1.pdf
https://spectrumforeveryone.com/features/quickly-diagnose-48k-ram-failures-ninja-style/
https://hardware.speccy.org/reparar-i.html
Chapters:
0:00 - 0:16 : Introduction and overview of the Spectrum collection
0:16 - 10:20 : Spectrum 48K unboxing, inspection and troubleshooting
10:20 - 18:25 : Spectrum Plus unboxing, user guide review and cassette loading issue
18:25 - 22:22 : Spectrum Plus 2 unboxing, basic programming test and cassette player check
22:22 - 26:30 : Spectrum Plus 3 unboxing, floppy drive inspection/repair, and final system testing
26:30 - 27:03 : Outro
Hall of the Mountain King by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/by/4.0/
Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1200072
Artist: http://incompetech.com/