Uploaded September 2023 | Updated September 2026, 3 weeks ago
On today's video, I'm fixing a computer keyboard that uses Alps SKCC switches. While repairing the Apple II+ clone computer this goes to, I determined that several key keys were not working. This board shows obvious signs of corrosion, so let's dig into and find out why it's not working.
The techniques here apply to any Alps SKCC board.
Part 0: youtu.be/31WAE83FPoE (SMMC video featuring this computer)
Part 1: youtu.be/vYMiSz-WlEY
Part 2: youtu.be/ErwUFmgQgXY
Part 3: youtu.be/xv6B8BFDMck
Part 3b: This part
-- Video Links
Music: Raindropsies_2SID by Wojciech Radziejewski (Shogoon)
https://csdb.dk/sid/?id=54728
What is Alps SKCC keyboard?
deskthority.net/wiki/Alps_SKCC_series
Adrian's Digital Basement Merch store:
my-store-c82bd2-2.creator-spring.com
Support the channel on Patreon:
patreon.com/adriansdigitalbasement
Adrian's Digital Basement (Main Channel)
youtube.com/channel/UCE5dIscvDxrb7CD5uiJJOiw
-- Tools
Deoxit D5:
amzn.to/2VvOKy1
store.caig.com/s.nl/it.A/id.1602/.f
O-Ring Pick Set: (I use these to lift chips off boards)
amzn.to/3a9x54J
Elenco Electronics LP-560 Logic Probe:
amzn.to/2VrT5lW
Hakko FR301 Desoldering Iron:
amzn.to/2ye6xC0
Rigol DS1054Z Four Channel Oscilloscope:
rigolna.com/products/digital-oscilloscopes/1000z
Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
amzn.to/3adRbuy
TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
amzn.to/2wG4tlP
aliexpress.com/item/33000308958.html
TS100 Soldering Iron:
amzn.to/2K36dJ5
ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853
EEVBlog 121GW Multimeter:
eevblog.com/product/121gw
DSLogic Basic Logic Analyzer:
amzn.to/2RDSDQw
ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672
Magnetic Screw Holder:
amzn.to/3b8LOhG
harborfreight.com/4-inch-magnetic-parts-tray-90566.html
Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971
RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
retrotink.com
Plato (Clone) Side Cutters: (order five)
ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184
Heat Sinks:
aliexpress.com/item/32537183709.html
Little squeezy bottles: (available elsewhere too)
amzn.to/3b8LOOI
--- Links
My GitHub repository:
github.com/misterblack1?tab=repositories
Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
commodorecomputerclub.com
--- Instructional videos
My video on damage-free chip removal:
youtube.com/watch?v=XQVjwPsVFd8
--- Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino
On today's video, I'm fixing a computer keyboard that uses Alps SKCC switches. While repairing the Apple II+ clone computer this goes to, I determined that several key keys were not working. This board shows obvious signs of corrosion, so let's dig into and find out why it's not working.
The techniques here apply to any Alps SKCC board.
Part 0: youtu.be/31WAE83FPoE (SMMC video featuring this computer)
Part 1: youtu.be/vYMiSz-WlEY
Part 2: youtu.be/ErwUFmgQgXY
Part 3: youtu.be/xv6B8BFDMck
Part 3b: This part
-- Video Links
Music: Raindropsies_2SID by Wojciech Radziejewski (Shogoon)
https://csdb.dk/sid/?id=54728
What is Alps SKCC keyboard?
deskthority.net/wiki/Alps_SKCC_series
Adrian's Digital Basement Merch store:
my-store-c82bd2-2.creator-spring.com
Support the channel on Patreon:
patreon.com/adriansdigitalbasement
Adrian's Digital Basement (Main Channel)
youtube.com/channel/UCE5dIscvDxrb7CD5uiJJOiw
-- Tools
Deoxit D5:
amzn.to/2VvOKy1
store.caig.com/s.nl/it.A/id.1602/.f
O-Ring Pick Set: (I use these to lift chips off boards)
amzn.to/3a9x54J
Elenco Electronics LP-560 Logic Probe:
amzn.to/2VrT5lW
Hakko FR301 Desoldering Iron:
amzn.to/2ye6xC0
Rigol DS1054Z Four Channel Oscilloscope:
rigolna.com/products/digital-oscilloscopes/1000z
Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
amzn.to/3adRbuy
TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
amzn.to/2wG4tlP
aliexpress.com/item/33000308958.html
TS100 Soldering Iron:
amzn.to/2K36dJ5
ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853
EEVBlog 121GW Multimeter:
eevblog.com/product/121gw
DSLogic Basic Logic Analyzer:
amzn.to/2RDSDQw
ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672
Magnetic Screw Holder:
amzn.to/3b8LOhG
harborfreight.com/4-inch-magnetic-parts-tray-90566.html
Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
ebay.com/itm/14-16-18-20-24-28-32-40-pin-IC-Test-Universal-ZIF-Socket-Fs/303206721971
RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
retrotink.com
Plato (Clone) Side Cutters: (order five)
ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184
Heat Sinks:
aliexpress.com/item/32537183709.html
Little squeezy bottles: (available elsewhere too)
amzn.to/3b8LOOI
--- Links
My GitHub repository:
github.com/misterblack1?tab=repositories
Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
commodorecomputerclub.com
--- Instructional videos
My video on damage-free chip removal:
youtube.com/watch?v=XQVjwPsVFd8
--- Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino
