From: Michael Huth (520052975648-0001_at_t-online.de)
Date: 2003-02-10 23:08:25
Hello, I got a C= PC1 lately from a friend. It has a Motorola 6845 as CRT Controller. This controller seems to be capable of a 80x25 Textmode and CGA Graphics. The Board has a RGB Connector and a Composite-Video Connector and 4 DIP switches. The DIPs seem to have an influence on the Video Signal. The Problem is, I have only a TV or a BT878 based PC-TV card for Video Input. I tried the Video Out with the TV and couldn't get a Sync. Also my C128-RGB to Composite-Video Cable didn't worked. With one DIP combination I could get a barely visible Screen with my PC-TV Card. The PC1 itself seems to be ok (until it waits for a boot disk). So do I really need some CGA Monitor or is there any way to get it working with a usual TV (like the C128 RGB to Composite Video Cable). And what for is the Video-Out, if it does not works with a TV ? I am not that hardware freak. I am lucky that I got it working again with some AT-Power Supply after the built-in broke down :-/. Maybe these things help: -There is a 15Mhz Quarz which seems to be for the DOT-Clock. -The Video Out Signal seems to be generated with the help of some Resistor Array (not the sync though). Ciao... ...Michael Message was sent through the cbm-hackers mailing list
Archive generated by hypermail 2.1.6.