#C1962/1952 Monitors
07-Jun-94 03:10:45
Sb: #151186-#C1962/1952 Monitors
Fm: Ronald B. Romine 70322,1525
To: Erik Flom 71204,407
EF >>Anyway, my question relates to the hardware hack that showed up here
recently to clear up vertical bars in the Amiga display.<<
EF >>1. Would this _really_ work?<<
Yes it works. I followed the thread on USENET were this hack originated.
The vertical banding problem is caused by 'cross talk' between two of the
pins on the Video port. If the pins had be arranged differently, the
problem might not have developped, but it didn't become noticable until
VGA syncs were used.
I believe the resister acts as a either a filter (weakening the strenght
of signal being putout by the offending pin), or grounds the pin so it
doesn't generate a ~15-kHz signal.
—
EF >>2. Would this work on the Sync Strainer?<<
I don't know. I'm not sure, but I believe the Video pin causing the
banding was used for genlocking.
Ron.
– ap'ing with AP. (Eagles may fly, but weasels aren't sucked
into jet engines.)