Kenwood TK-350/250 Programming Dilema
All I have been able to do is flash the firmware to 2B91 version, as it's the latest version I can find. And that flashed fine, but still can't connect.Any ideas or direction would be awesome and most appreciated !!
I'd paste some screen shots, but the site won't let me. Cheers :)
My setup is almost same as yours despite im using real rs232 and i did modify kpg22 you find on ebay (the one with additional rj plug cable fitted). I was same as you using windows 7 and dosbox with 386_slow 1000 cycles fixed… After jumper db9 pin 7 and 8 together, it worked like a champ, these pins must be joined too.
There is kpg22 schematic with max232 on internet pointing that as well