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:
Video showing 286 battery upgrade:
Hard drive testing video
GSETUP:
CMOS reset procedure:
BIOS dump:
Adrian’s Digital Basement Merch store:
Adrian’s Digital Basement ][ (Second Channel)
Support the channel on Patreon:
— Tools
Deoxit D5:
O-Ring Pick Set: (I use these to lift chips off boards)
Elenco Electronics LP-560 Logic Probe:
Hakko FR301 Desoldering Iron:
Rigol DS1054Z Four Channel Oscilloscope:
Head Worn Magnifying Goggles / Dual Lens Flip-In Head Magnifier:
TL866II Plus Chip Tester and EPROM programmer: (The MiniPro)
TS100 Soldering Iron:
EEVBlog 121GW Multimeter:
DSLogic Basic Logic Analyzer:
Magnetic Screw Holder:
Universal ZIP sockets: (clones, used on my ZIF-64 test machine)
RetroTink 2X Upconverter: (to hook up something like a C64 to HDMI)
Plato (Clone) Side Cutters: (order five)
Heat Sinks:
Little squeezy bottles: (available elsewhere too)
— Links
My GitHub repository:
Commodore Computer Club / Vancouver, WA – Portland, OR – PDX Commodore Users Group
— Instructional videos
My video on damage-free chip removal:
— Music
Intro music and other tracks by:
Nathan Divino
@itsnathandivino
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