Repair/Restoration: Oric-1

I bought this a few years back and thought it about time I actually look at getting it running. This was supposed to be a nice, simple job on the run up to Christmas however it has turned out to be a total nightmare.

My NAS failed and a large number of the files were corrupted. I've managed to save the majority of them, however some are beyond recovery.

In total, I've spend weeks recovering this and I hope you feel it's worth it. Oh, and it was released in 1982, NOT 1992 as I incorrectly said at 02:55 !

Thanks to all on the Defence-Force forum for your help! https://forum.defence-force.org/

00:54 Intro
04:40 PSU
07:20 Disassembly
10:29 Capacitor Replacement
10:50 First Test
11:31 Oscilloscope
13:16 More Oscilloscope Testing
14:11 It's Working?
18:16 Schematic Lookup
19:44 Testing the Logic
21:20 More Logic Testing
23:46 Third Time's the Charm
26:43 Play Time!


Parts Used

PSU

1 x 2200uf 16v Capacitor

Motherboard

1 x 1uf 50v Capacitor
1 x 100uf 10v Capacitor
1 x 220uf 10v Capacitor
1 x 7905 Voltage Regulator
8 x 4164 RAM Chips


I am not and do not claim to be an official or qualified repair technician. Everything shown here is for entertainment and educational purposes only and I shall accept no liability for any damage or issues caused by copying what I do. Remeber, this is done for fun and the love of doing it!

You can support me on Patreon:   / retrokrazy​  

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Intro (Shiny Demo) and Outro (FlippenFlappen) Chiptunes ceated by the talented Gasman and used with permission. Please check him out here: https://gasman.zxdemo.org/​

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