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The RGB2HDMI now has a profile for the Video 7 Enhancer IIe / Enhancer IIc including a specific palette so the colors decode perfectly. Of course, the device can also decode color directly and perfectly but on the IIe that would involve soldering some wires to specific points on the...

Sadly my CM-1 does not have a resistor fitted where yours did. I know this isn't a clear picture but there was nothing at all near the flyback.... just one diode in the very bottom edge. I only took close up pictures of the area where all the components were installed on my board... but in the...

Sorry about the lack of Pinout! Here are a couple pics. The DE9 is normal CGA Pinout and the pins go to the ten pin header on the card 1 to 1. And then as you guessed the last pin 10 from the header is wired up to the composite jack. It uses the ground from pin 1 (brown wire) on the DE9 for the...

Huge thanks for doing this!!

Here is a photo of the inside of the Enhancer IIc: https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Peripherals/Video/Video-7%20Color%20Enhancer%20IIc/Photos/Video-7%20Color%20Enhancer%20IIc%20-%20PCB%20front.jpg This is clearly the same thing exactly as this, and from the...

And here are some photos of the card in operation. The artifact color decoding is about as good as one could expect for 1985. The IIgs does a much better job (IMHO) especially where two white pixels with adjacent black pixels on the IIgs are rendered as just white without any color. This makes...

Hello all, I have a "Video 7 Enhancer IIe" RGB card and I wanted to share a little info about the card. There doesn't seem to be much info out there about it, so here goes. This is a RGB _and_ Composite video output card for the Apple IIe and it plugs into the AUX slot. It gives the machine...

Hey all -- guess what I just found in an old XT Clone motherboard? This strange pre-release XT BIOS! (Dump Attached) This board uses 8K EPROMs, so the IBM ROM was split up into 5 chips. U35 (IC closest to the CPU) is the top of the address space, FE. The board has room for 8 chips so can address...

The seller mention to me the eBay froze the listings because he was too far behind shipping stuff out. Once he gets caught up, the listings should work again. (A viewer visited in person and told me there were an estimated 2200 units although it's unknown how many of those actually work. The...

I did a quick look at the schematics, and it would easy to give the system 32K of ROM. Just a simple mod and running the extra address linse to the ROM socket. Of course, that won't make it MSX compatible because of the different IO ports. At first glance the interrupts are handled differently...

Hi snuci, looking at your pics, your ribbon cable looks completely corroded. Typical for these terrible things -- they should not be blue/green under the white plastic, but gray/silver. It's copper under there and over time it goes bad, turning the blue/green as copper does. If your controller...

So funny, another viewer just emailed me several ROMs for the VIDEX and clones. My particular card is the clone which is 100% identical to the real thing. Note that some cards use 2708 cards and omer use 2716. You have to configure the jumpers appropriately on the board if yours uses a 2708 and...

So I was working on my (Working) ACE 1000 and I decided to clean the mouse poop off the motherboard. In the process, I removed the ROMs and went to read them all in.... Sadly, in the process, I accidentally wrote to the ROM in G7 before reading it out. One would think it wouldn't do anything...

I got one from China .... it looks like this. It works great but I did have to modify it. I know for sure the luminance output on S-Video was too dim. It had an inline resistor that was too high so I had to remove it and then add a lower value. I seem to recall adding a 75 ohm and removing...

I'd be worried about using this type of connector: if they stop making those adapters suddenly it would be much harder to use your board. Versus 40 pin IDE which would be used with a ribbon cable to whatever is available or these types of plug in adapters which take power right from the PIN 20...

Looking at normal ISA bus cards are pretty much always going to use a 245 for stability -- because look how long traces are on a ISA bus and it has 7+ slots, so it a good thing to do for stability when you have a ton of other cards installed... But I stand by the fact that since there is no...

Hey all! Two of my three flat C128s have an interesting issue. The chroma output is very weak resulting in a nearly black and white picture. At first I thought my cable was bad or maybe my monitor was having an issue.... but going between a C64 and my other C128 show that it's other two flat...

Well I'm calling it quits on this card .... I don't know how many hours I've spent testing this but there is something wrong with the DRAM fresh on it. Over time the RAM on the JrWave starts to lose the contents and if you try to use the RAM, it will crash. I outlined what happens in the post...

Hi guys, ok I have everything sorted out. Unfortunately, my PCjr itself or the Tecmar JrWave appears to have issues. As soon as I add memory then enable it (using either JRCONFIG.SYS or Techmar's CONPCJR) the computer becomes unstable. (More on that in a second) My issue with the memory test...

Fascinating -- so yes the JrWave has that pin header to allow the JrCadet to connect up. I guess if you had a whole lot of 64k RAM chips then could buy the Cadet to keep adding RAM. So I did a little more troubleshooting --- using the Tecmar "MEMTEST" utility, I am getting some issues with...