Commodore Amiga 600 Green Screen Repair

▶Sincere thanks to our sponsor, PCBWay. Click here for a free new user $5 credit: https://www.pcbway.com/setinvite.aspx...
▶General description of encoder issue/upgrade: https://www.waveguide.se/?article=ami...
▶CXA2075M encoder upgrade: https://www.ikod.se/cxa2075m/

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00:00 Introduction
01:47 Sponsor segment
02:20 The primary fault
03:23 A look inside the case
07:52 Removing the motherboard
09:00 Fixing corrosion
10:57 Did cleaning up corrosion fix anything?
11:30 Removing a DRAM chip
12:14 Replacing the RAM
17:21 Power on test with new RAM
18:10 But there's another problem
19:08 The video circuit
22:53 Testing the video encoder
24:51 Cleaning and recapping the motherboard
28:38 Testing the recapped board
30:52 RGB video fault identified
34:34 Testing composite video
35:30 The CXA2075M video encoder
38:52 Composite video fixes
44:25 Testing the upgraded encoder
45:57 Conclusion and summary

Soldering and test equipment:

● Hakko FX-951 T12 soldering station: https://uk.farnell.com/hakko/fx951-64...
● Best BST-863 hot air rework station: https://www.banggood.com/BEST-BST-863...
● Anesty (Duratool) ZD-915 thru-hole desoldering station: https://cpc.farnell.com/duratool/d006...
● Hanmatek DOS1102 dual-channel oscilloscope: https://www.amazon.co.uk/DOS1102-osci...
● Amtech NC-559 Tacky Flux: https://store.rossmanngroup.com/index...
● Goot Wick Desoldering Braid: https://store.rossmanngroup.com/index...
● Cynel Sn60Pb38Cu2 Tin/Lead Solder Wire: https://www.tme.eu/gb/details/lc60m2-...
● SysCheck v.2.2 by tf_hh: http://www.abbuc.de/component/jshoppi...

Equipment and software used for video production:

● Open Broadcaster Studio: https://obsproject.com/
● 2x Logitech Brio webcams: https://www.amazon.co.uk/Logitech-Gam...
● USB AV/s-video capture dongle: https://www.amazon.co.uk/Ex-Pro-Grabb...
● 135W Photography Studio Softbox Light: https://www.ebay.co.uk/itm/135W-Photo...
● Final Cut Pro
● Apple Motion
● 15" mid-2015 Apple Retina MacBook Pro

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#retrocomputing