home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Tricks of the Mac Game Programming Gurus
/
TricksOfTheMacGameProgrammingGurus.iso
/
More Source
/
Libraries
/
VideoToolbox 95.04.18
/
Notes
/
Multisync sense pins.note
< prev
next >
Wrap
Text File
|
1994-06-21
|
2KB
|
71 lines
***********Downloaded from Compuserve June 15, 1994**************
Here is how to get the most out of Your Multisync Monitor connected
to Your Apple:
With Apple's New Multiple-Scan-Monitor-Software which works on all Quadras
You can switch the resolution of Your screen without shutting down Your Mac
or pulling switches or changing Adapters!
So first get a copy of this Software.
Second You have to tell Your Mac that the Monitor supports Multiple Frequencies:
get 2 Sub-D 15-Pin connectors, one male, one female.
get 1 Diode.
connect all Pins but 4,7,10 straight between the two connectors.
on the male side of the connector short pins 4 and 11 with a wire.
connect the diode between pin 7 and 10 of the male connector in
a way that the black ring on the diode points to pin 7.
Now put this adapter between your mac and Your Video-Cable
You now got an 20'' multiple Scan Monitor!
You may switch between all Apple-Resolutions ranging
from 640*480, 832*624, 1024*768 to 1178*870 Dots
But Be careful not to damage Your Monitor with the high resolutions!
If You like this Tip, send me a Postcard!
Philipp Biermann
Im Winkelrain 52
72076 Tuebingen
Germany
CIS: 100022,327
RELATED NOTES:
- if your Monitor runs without the apple-software and simply goes dark
if the apple-m-scan-software is installed your cable adapter needs an
update because the apple software switches off the sync-signal from
the green-video. simply buy a new apple to VGA-adapter which supports
an extra sync line! (all new machines made by apple up from LC-III have no
sync on green because of energy-star-compatible reasons (????)
If You use an Monitor with BNC-Connectors You may connect pin 3 with
the Composite Sync on your monitor (ground to Pin 11) or 14 to H-Sync
and 12 to V-sync (gournd on 11) instead of buying a new cable!
Machines with sync on green are Quadra 700, Quadra 900/950 and some
other.
- The adapter should also work with the LC475/Performa 475 or newer models
because this is the same Video as in the Q610
maybe also in some LCIII and on some 8*24 and 8*24GC Cards
Mac video pinouts:
DB15M DB15F Pin Assignments
1 1 RED GND
2 2 RED VIDEO
3 3 C SYNC
5 5 GREEN VIDEO
6 6 GREEN GND
9 9 BLUE VIDEO
11 11 C & V SYNC GND
12 12 V SYNC
13 13 BLUE GND
14 14 H SYNC GND
15 15 H SYNC