MJB@cup.portal.com (Martin J Brown-Jr) (01/16/91)
I'm currently trying to correct a few video problems on a friend's old
Leading Edge Model "D", before it is given to relatives as a first computer.
Since the L.E. monochrome monitor is having problems, I decided to check out
the color port using a Sony KV-1311CR, with its digital RGB port
(weird connector), using a cable that I happened to have, that has the right
connectors on the ends (see below). I got beautiful color, but there is
flashing when the screen is scrolled, like it's not updating video during
vertical retrace. The horizontal flashes (black) appear at different vertical
positions each time. With Norton Commander, which has two directory panels
in the upper half of the screen, I get flashing within the panels as the
directory scrolls.
Any ideas on getting rid of the flashing?
Is the cable wiring correct? (I believe it is).
Wiring of color cable:
L.E. color Sony
output TTL - RGB
DB9 connector
--- ---------
1 ----------------- 5 ground
2 ----------------- 6 ground
3 ----------------- 2 red input
4 ----------------- 3 green input
5 ----------------- 4 blue input
6 ----------------- 1 intensity input
7
8 ----------------- 7 H. sync input
9 ----------------- 8 V. sync input
Thanx for any help you may be able to give!
- MJB -
USENET: mjb@cup.portal.com