Uploaded November 2022 | Updated September 2026, 2 weeks ago
The year was 1982 and NEC entered the home computer market (outside Japan) with the NEC APC, or Advanced Personal Computer. The machine sported an Intel 8086 CPU, ran MS-DOS and sported dual integrated 8" floppy drives! In this video I'll take a look at the machine inside and out, and do a repair on it so I can get it working again.
Part 1: youtu.be/On3EdkGgHNo
Part 2: This part!
-- Info
To reboot the NEC APC:
Function - Control - Break Stop
-- Video Links
Using an 8" Disk Drive on a PC:
youtube.com/watch?v=TfEzjcG_0gs
TexElec Disk Drive Controller:
Not yet available (As of Nov 2022)
8" floppy disk Shugart interface adapter 50 pin to 34 pin (eBay)
ebay.com/itm/115587959419
NEC APC related files on archive.org:
archive.org/search.php?query=subject%3A%28%22NEC%20APC%22%29
BitSaver NEC APC links:
bitsavers.org/pdf/nec/APC
bitsavers.org/bits/NEC/APC
Imagedisk (IMD) by Dave Dunfield:
dunfield.classiccmp.org/img/index.htm
22DISK/22NICE (Utility for copying files to/from CPM disks)
cpm80.com (download links there or use Google)
NEC APC (Wikipedia)
en.wikipedia.org/wiki/APC_series
Adrian's Digital Basement Merch store:
my-store-c82bd2-2.creator-spring.com
Adrian's Digital Basement ][ (Second Channel)
youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
patreon.com/adriansdigitalbasement
-- 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
The year was 1982 and NEC entered the home computer market (outside Japan) with the NEC APC, or Advanced Personal Computer. The machine sported an Intel 8086 CPU, ran MS-DOS and sported dual integrated 8" floppy drives! In this video I'll take a look at the machine inside and out, and do a repair on it so I can get it working again.
Part 1: youtu.be/On3EdkGgHNo
Part 2: This part!
-- Info
To reboot the NEC APC:
Function - Control - Break Stop
-- Video Links
Using an 8" Disk Drive on a PC:
youtube.com/watch?v=TfEzjcG_0gs
TexElec Disk Drive Controller:
Not yet available (As of Nov 2022)
8" floppy disk Shugart interface adapter 50 pin to 34 pin (eBay)
ebay.com/itm/115587959419
NEC APC related files on archive.org:
archive.org/search.php?query=subject%3A%28%22NEC%20APC%22%29
BitSaver NEC APC links:
bitsavers.org/pdf/nec/APC
bitsavers.org/bits/NEC/APC
Imagedisk (IMD) by Dave Dunfield:
dunfield.classiccmp.org/img/index.htm
22DISK/22NICE (Utility for copying files to/from CPM disks)
cpm80.com (download links there or use Google)
NEC APC (Wikipedia)
en.wikipedia.org/wiki/APC_series
Adrian's Digital Basement Merch store:
my-store-c82bd2-2.creator-spring.com
Adrian's Digital Basement ][ (Second Channel)
youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
patreon.com/adriansdigitalbasement
-- 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
![Apple Lisa Part 4: Reconstructing the damaged boards
Im making great progress in resurrecting the batter damaged Apple Lisa. In this video I reconstruct a motherboard and I/O for the Lisa.
Apple Lisa Playlist: https://www.youtube.com/playlist?list=PL4tFqFVNf5LQ-OE8JGNMJQoVOmgkyTorC
Part 1: https://youtu.be/77El1RmSY0Q
Part 2: https://youtu.be/zZ84-9zjmYY
Part 3: https://youtu.be/I6Mp-OVm92U
Part 4: This part
Part 5: https://youtu.be/ohLDLJR-4-o
Part 6: https://youtu.be/HMEDMvb4IjM
Part 7: https://youtu.be/Vwr8A6k9cNM
0:00 Intro
2:00 Some Lisa parts from Jarrod
18:02 Rebuilding the motherboard
36:49 Rebuilding the I/O board
Links
Lisa 2/5 and 2/10 floppy drive mod:
https://68kmla.org/bb/index.php?threads/are-lisa-2-10-and-2-5-i-o-boards-interchangeable.35698/
Alexs Github with replacement Lisa PCBs:
https://github.com/alexthecat123/Lisa-PCBs
Adrians Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement
My GitHub repository:
https://github.com/misterblack1?tab=repositories
Instructional videos
My video on chip removal without damage:
https://www.youtube.com/watch?v=XQVjwPsVFd8
Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino Apple Lisa Part 4: Reconstructing the damaged boards](https://i.ytimg.com/vi/zSlv7GZdFUg/mqdefault.jpg)
![Apple Lisa Part 2: Testing the CPU and RAM boards
Its time to revisit the battery damaged Apple Lisa from a couple weeks ago. I had a chance to test a couple of my boards in a working Lisa so I could rule out potential issues with these two boards.
Apple Lisa Playlist: https://www.youtube.com/playlist?list=PL4tFqFVNf5LQ-OE8JGNMJQoVOmgkyTorC
Part 1: https://youtu.be/77El1RmSY0Q
Part 2: This part!
Part 3: https://youtu.be/I6Mp-OVm92U
Part 4: https://youtu.be/zSlv7GZdFUg
Part 5: https://youtu.be/ohLDLJR-4-o
Part 6: https://youtu.be/HMEDMvb4IjM
Part 7: https://youtu.be/Vwr8A6k9cNM
Links
Alexs Github with replacement Lisa PCBs:
https://github.com/alexthecat123/Lisa-PCBs
Adrians Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement
My GitHub repository:
https://github.com/misterblack1?tab=repositories
Instructional videos
My video on chip removal without damage:
https://www.youtube.com/watch?v=XQVjwPsVFd8
Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino Apple Lisa Part 2: Testing the CPU and RAM boards](https://i.ytimg.com/vi/zZ84-9zjmYY/mqdefault.jpg)
![A piece of computing history: The Acorn Archimedes A420/1
Today we are looking at one of the first commercial computers with an ARM processor: The Acorn Archimedes A420/1
Part 1: This part
Part 2: https://youtu.be/m5xuJwQhANQ
0:00 Intro
1:48 Unboxing
10:42 What was sent in
18:42 Taking a look inside
26:13 Acorn and the Archimedes
46:27 Hooking the Archimedes to a monitor
49:33 First power up
57:17 Exploring RiscOS for the first time
59:48 Outro
Links
RISCO OS for Raspberry Pi:
https://www.riscosopen.org/content/downloads/raspberry-pi
8-bit Retro Shop:
https://www.retro8bitshop.com/
Toksicy2k Ebay: (Monitor flap)
https://www.ebay.com/itm/136011053548
Acorn Archimedes A420/1:
https://chrisacorns.computinghistory.org.uk/Computers/A4001.html#A410/1
ARM3 upgrade:
https://chrisacorns.computinghistory.org.uk/32bit_UpgradesH2Z/WE_25MHZARM3.html
Econet Module:
https://chrisacorns.computinghistory.org.uk/Network/Pics/Acorn_ADF10_EconetModule.html
https://www.retroisle.com/general/acorn_econet.php
Wikipedia:
https://en.wikipedia.org/wiki/Acorn_Archimedes
https://en.wikipedia.org/wiki/Acorn_Computers
Adrians Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g
Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement
My GitHub repository:
https://github.com/misterblack1?tab=repositories
Instructional videos
My video on chip removal without damage:
https://www.youtube.com/watch?v=XQVjwPsVFd8
Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino A piece of computing history: The Acorn Archimedes A420/1](https://i.ytimg.com/vi/zvv06jKcMtE/mqdefault.jpg)