J.v.f Led Sign 2010-a Indoor Outdoor Commercial Programmable
JVF 2010-A LED PROGRAMMABLE COMMERCIAL SIGN GREAT FOR BUSINESS OR COOLEST MANCAVE ITEM EVER! I have a light fixture for small businesses/companies for advertisement/marketing display outside. It’s in excellent condition and works perfectly. Please look at pictures for the wear and more information on what it can do. It’s called “JVF 2010-A.” It’s 2 x 20 x 42 sign with RED LED lights (no dead pixels), Can be programmed to read and say anything from floppy disc *animation & still images* (made in 2012), very clean, durable, and great! It can be used outside and inside with proper management. You need : Windows PC Floppy Drive (and you thought they were outdated) Old ps1 keyboard (it has the Large Connector on the cable) Description The 2010-A is a 128 x 48 “pixel” led display that runs a “slide show” program consisting of individual slide files. Apparently, there is an earlier version called simply the 2010 that connects to a computer with a 25-pin cable (that I assume is an old fashion Serial Com Port interface), but as I have not been introduced to one of these, I can’t comment any more on it. The 2010-A displays these slides in a basic IBM CGA compatible structure where 1 byte (8 bits) = 4 pixels with these possible values: 00 Black (LED OFF) 01 Cyan (LED 1/3 ON, also called “half intensity”) 10 Magenta (LED 2/3 ON) 11 White (LED FULL intensity or “bright”) (Magenta value is not visibly that much different than White, so is rarely used) The general hardware structure of the 2010-A is (again, speculation) based on an IBM XT compatible motherboard with a floppy drive controller and BIOS set for booting from this floppy. It (based on my own experiment with DOS MEM) has 2MB of RAM. The unit I work with also has a 5-pin DIN connector which I’m guessing is either a keyboard jack or a modified serial connector, but who cares? The actual drive circuits for the led’s are unknown to me, but a fellow curiosity seeker speculates that there is a programmable DMA that scans a chunk of ram to raster to the led matrix. For me, as long as the software works, who cares? When power is applied and a short delay expires, the 2010-A attempts a normal boot load from the floppy. This results in DOS (yes, that is correct – DOS Ver 5.0 or 6.22) being loaded. The CONFIG.SYS file then loads HIMEM.SYS (which allows access to the entire 2MB of ram) followed by RAMDRIVE.SYS (which creates a “fake” Hard Drive C: in memory of about 800KB). The AUTOEXEC.BAT file then proceeds to copy the display program, the display program “control” batch file (.SHW) and the various “slides” (.DSN and .BLK) to this ramdrive. Control then switches to the ramdrive and the display program and the show begins. The disk can be removed and the show can run as long as power remains present. JVF 2010-A OS The 2010a has a built in operating system. Which is accessible if you have a keyboard. Plug in keyboard and press Escape (ESC) ONE TIME and wait 2-10 seconds. If you press esc when at the main screen it basically unloads jvff.exe and you’ll need to turn off the sign then back on, very annoying. To create a dsn on the sign go to edit image then type a short name and it will say new file. Draw something then press esc. It’ll ask you to return save or quit. if you press quit it wont save the file. The sign is not y2k compliant so set the year to 1985 or something, cause I dunno what will happen if the clock tries to go to 2000. maybe the bios will Write and error to itself and break the sign? Only the years 1980 to 1999 work. You can also edit your shw files from the os.
The sign Business & Industrial:Retail & Services:Business Signs is located in Lawrenceville, Georgia, US.