Using the NEC APC, Japanese MS-DOS computer with 8" drives

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: https://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:
https://www.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)
https://www.ebay.com/itm/115587959419

NEC APC related files on archive.org:
https://archive.org/search.php?query=subject%3A%28%22NEC%20APC%22%29

BitSaver NEC APC links:
http://www.bitsavers.org/pdf/nec/APC/
http://www.bitsavers.org/bits/NEC/APC/

Imagedisk (IMD) by Dave Dunfield:
http://dunfield.classiccmp.org/img/index.htm

22DISK/22NICE (Utility for copying files to/from CPM disks)
https://www.cpm80.com/ (download links there or use Google)

NEC APC (Wikipedia)
https://en.wikipedia.org/wiki/APC_series

Adrian's Digital Basement Merch store:
https://my-store-c82bd2-2.creator-spring.com/

Adrian's Digital Basement ][ (Second Channel)
https://www.youtube.com/channel/UCbtwi4wK1YXd9AyV_4UcE6g

Support the channel on Patreon:
https://www.patreon.com/adriansdigitalbasement

-- Tools

Deoxit D5:
https://amzn.to/2VvOKy1
http://store.caig.com/s.nl/it.A/id.1602/.f

O-Ring Pick Set: (I use these to lift chips off boards)
https://amzn.to/3a9x54J

Elenco Electronics LP-560 Logic Probe:
https://amzn.to/2VrT5lW

Hakko FR301 Desoldering Iron:
https://amzn.to/2ye6xC0

Rigol DS1054Z Four Channel Oscilloscope:
https://www.rigolna.com/products/digital-oscilloscopes/1000z/

Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
https://amzn.to/3adRbuy

TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
https://amzn.to/2wG4tlP
https://www.aliexpress.com/item/33000308958.html

TS100 Soldering Iron:
https://amzn.to/2K36dJ5
https://www.ebay.com/itm/TS100-65W-MINI-Digital-OLED-Programmable-Soldering-Iron-Anti-static-Structure/113382669853

EEVBlog 121GW Multimeter:
https://www.eevblog.com/product/121gw/

DSLogic Basic Logic Analyzer:
https://amzn.to/2RDSDQw
https://www.ebay.com/itm/USB-Logic-DSLogic-Basic-Analyzer-16Ch-100MHz-4Ch-400MHz-Xilinx-Spartan-6-FPGA/202543965672

Magnetic Screw Holder:
https://amzn.to/3b8LOhG
https://www.harborfreight.com/4-inch-magnetic-parts-tray-90566.html

Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
https://www.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)
http://www.retrotink.com/

Plato (Clone) Side Cutters: (order five)
https://www.ebay.com/itm/1-2-5-10PCS-Micro-Scissor-125mm-PLATO-170-Electronics-Cutter-Side-Cutting-Pliers/163458746184

Heat Sinks:
https://www.aliexpress.com/item/32537183709.html

Little squeezy bottles: (available elsewhere too)
https://amzn.to/3b8LOOI

--- Links

My GitHub repository:
https://github.com/misterblack1?tab=repositories

Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
https://www.commodorecomputerclub.com/

--- Instructional videos

My video on damage-free chip removal:
https://www.youtube.com/watch?v=XQVjwPsVFd8

--- Music

Intro music and other tracks by:
Nathan Divino
@itsnathandivino