▶Sincere thanks to our sponsor, PCBWay. Click here for a free new user $5 credit: https://www.pcbway.com/setinvite.aspx?inviteid=545120
▶General description of encoder issue/upgrade: https://www.waveguide.se/?article=amiga-600-video-encoder-upgrade
▶CXA2075M encoder upgrade: https://www.ikod.se/cxa2075m/
▶Donations: https://www.paypal.me/flashjazzcat
▶Tip or donate: https://ko-fi.com/flashjazzcat
▶Patreon: https://www.patreon.com/flashjazzcat
▶Website: http://www.atari8.co.uk
▶Odysee channel: https://odysee.com/@flashjazzcat
▶Facebook: http://www.facebook.com/atari8/
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/soldering-station-75w-230vac/dp/3367978
● Best BST-863 hot air rework station: https://www.banggood.com/BEST-BST-863-1200W-220V-or-110V-Intelligent-LCD-Touch-Screen-Heat-Air-SMD-Rework-Station-p-1431173.html
● Anesty (Duratool) ZD-915 thru-hole desoldering station: https://cpc.farnell.com/duratool/d00672/desoldering-station-uk-eu-plug/dp/SD01384
● Hanmatek DOS1102 dual-channel oscilloscope: https://www.amazon.co.uk/DOS1102-oscilloscope-Professional-Oscilloscope-Bandwidth/dp/B0833X3RFK
● Amtech NC-559 Tacky Flux: https://store.rossmanngroup.com/index.php/amtech-nc-559-v2-30-cc-16160.html
● Goot Wick Desoldering Braid: https://store.rossmanngroup.com/index.php/ab20-gootwick-1-5.html
● Cynel Sn60Pb38Cu2 Tin/Lead Solder Wire: https://www.tme.eu/gb/details/lc60m2-0.7_1.0/solders-wires/cynel/
● SysCheck v.2.2 by tf_hh: http://www.abbuc.de/component/jshopping/hardware/syc
Equipment and software used for video production:
● Open Broadcaster Studio: https://obsproject.com/
● 2x Logitech Brio webcams: https://www.amazon.co.uk/Logitech-Gaming-Webcam-Streaming-Compatible/dp/B0748NCPN5
● USB AV/s-video capture dongle: https://www.amazon.co.uk/Ex-Pro-Grabber-Editor-capture-Windows/dp/B001HB9C1O
● 135W Photography Studio Softbox Light: https://www.ebay.co.uk/itm/135W-Photography-Studio-Softbox-Continuous-Lighting-Soft-Box-Light-Stand-Kit-Set-/142645098730?hash=item21364f78ea
● Final Cut Pro
● Apple Motion
● 15" mid-2015 Apple Retina MacBook Pro
#atari
#retrocomputing