![]() I can show you a pinout for a monochrome monitor that only requires five wires – however you don't make it clear whether your VM-3 monitor has a cable that's moulded to the monitor at the monitor end, or whether the cable is detachable at both ends. (You might have wanted to make that explicit.) I'm assuming you suddenly mentioning that there are five wires means you counted that number of wires in the VM-3's monitor cable whose connector was cut off. Especially if there are two DE-9 connectors, do you know which connector that monitor would have been connected to before its cable connector got cut off? (Either connector? Or if only one, then which?)ģ. You say that that Tandy VM-3 monochrome monitor was "the monitor" that was used with this system. Do I understand you correctly that you are talking about two 9-pin D-sub (DE-9) video connectors, one the SBC, and one on what we think is an add-on TIGA video card?Ģ. Let me ask you, zeos, to clear things up:ġ. However, I think zeos' original post was also somewhat confusing. ![]() You're making the assumption that it's not, and that's jumping to conclusions. It is possible if that 9-pin connector is actually a VGA-compatible analog video connector. Zeos asked if it's possible to connect something that could be CGA or EGA or something else to 15-pin VGA (i.e. The first time I got a Mac II to display on an old IBM 19" workstation monitor, made by Sony, I nearly fell over they were so drop dead gorgeous. The Macs would plug right in and do their thing. In any event it took fenagling to get VGA or SVGA to display on one of those monitors. Many "workstation" fixed frequency monitors used syncs that were the opposite polarity of say 640 x 480 VGA IIRC. You could program the polarity of the sync signals, composite sync, sync on green, whatever you wanted. Don't ask me the names, there were a bunch is all I know. Many of the 1995 and newer cards also had very programmable firmware. And weren't there SVGA modes that could output MDA suitable for the VM-3? In any event it probably was a function of the parameters passed to the card. Perhaps this card is designed to work with more mainstream monitors. Granted if a Multisync could scan that high, and most modern ones did post 1993?, it would also work. You could not connect the computer to a VGA/SVGA monitor, but rather it displayed VGA modes on a 64khz fixed frequency monitor. What I gathered was that the chipset was very programmable. I used to have a DEC pizza box (486) with a TMS34010 or equivalent built in.
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