Uploaded September 2023 | Updated September 2026, 2 weeks ago
It's not surprising when you can't find any information about a computer from a small unknown company. This is different. The computer computer in this video was sold by Leading Edge, a rather prolific and popular PC clone maker. It honestly baffles my mind that there appears to be zero information about the existence of this machine on the internet. That changes now!
-- Info
Leading Edge MP-2400L
Mitsubishi PC13WA Power supply
Mitsubishi F504A-372 1.2mb Floppy Drive
Toshiba FDD6882E 1.2mb floppy drive
Fujitsu Limited M2553K 1.2mb floppy drive
DIP switch settings:
1 and 2: CPU SPEED / WAIT STATE:
ON / ON = 8mhz 1WS
OFF / OFF = 6mhz 1WA
ON / OFF = 6mhz 0WS
OFF / ON = 7.17mhz 0WS (fastest mode)
3: ON = 512k conv. / 512k extended OFF = 640k conv / 0k extended
4: ? Should probably be "Off"
5 and 6: RAM SIZE OFF / OFF = 1 meg
7: Keyboard, must always be ON
8: Monitor type?
-- Links
My patrons found this Mitsubishi motherboard which seems to have similar DIP switches:
stason.org/TULARC/pc/motherboards/M/MITSUBISHI-ELECTRONICS-286-MP2300.html
Video showing 286 battery upgrade:
youtu.be/xJYnbZY8t1E?t=1659
Hard drive testing video
youtube.com/watch?v=bgW5tpyJljM
GSETUP:
minuszerodegrees.net/5170/setup/5170_gsetup.htm
CMOS reset procedure:
minuszerodegrees.net/5170/setup/5170_clear_cmos_rtc_ram.htm
BIOS dump:
archive.org/details/image_20230920
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
It's not surprising when you can't find any information about a computer from a small unknown company. This is different. The computer computer in this video was sold by Leading Edge, a rather prolific and popular PC clone maker. It honestly baffles my mind that there appears to be zero information about the existence of this machine on the internet. That changes now!
-- Info
Leading Edge MP-2400L
Mitsubishi PC13WA Power supply
Mitsubishi F504A-372 1.2mb Floppy Drive
Toshiba FDD6882E 1.2mb floppy drive
Fujitsu Limited M2553K 1.2mb floppy drive
DIP switch settings:
1 and 2: CPU SPEED / WAIT STATE:
ON / ON = 8mhz 1WS
OFF / OFF = 6mhz 1WA
ON / OFF = 6mhz 0WS
OFF / ON = 7.17mhz 0WS (fastest mode)
3: ON = 512k conv. / 512k extended OFF = 640k conv / 0k extended
4: ? Should probably be "Off"
5 and 6: RAM SIZE OFF / OFF = 1 meg
7: Keyboard, must always be ON
8: Monitor type?
-- Links
My patrons found this Mitsubishi motherboard which seems to have similar DIP switches:
stason.org/TULARC/pc/motherboards/M/MITSUBISHI-ELECTRONICS-286-MP2300.html
Video showing 286 battery upgrade:
youtu.be/xJYnbZY8t1E?t=1659
Hard drive testing video
youtube.com/watch?v=bgW5tpyJljM
GSETUP:
minuszerodegrees.net/5170/setup/5170_gsetup.htm
CMOS reset procedure:
minuszerodegrees.net/5170/setup/5170_clear_cmos_rtc_ram.htm
BIOS dump:
archive.org/details/image_20230920
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
