Installation and Operation, cont’d
7
8
9
6 — Vertical sync pulse width
For some digital display devices, if no picture appears, the picture cuts in and out, or the picture is scrambled, you may need to select the wide vertical sync pulse width.
ON — When this switch is set to On, narrow sync pulse width is selected.
OFF — When this switch is set to Off, wide sync pulse width is selected. (Default setting.)
7 & 8 — Composite sync routing
These are used for routing local monitor signals for Macintosh 13” monitors and all other
7 = OFF and
8 = ON — For Macintosh 13” monitors, set DIP switch 7 to Off and 8 to On for proper sync routing for the
7 = ON and
8 = OFF — For all other Macintosh and
7 = ON and 8 = ON or
7 = OFF and 8 = OFF — These settings are not valid combinations. They will not work with either computer type.
Audio input connector — Use this 3.5 mm stereo jack to connect an audio source to the interface.
Tip (L) | Sleeve (GND) |
Ring (R)
Tip (L)
Sleeve (GND)
Computer video input 9-pin D male connector (RGB 500 AKM only)
Computer video input 15-pin HD female connector (RGB 560 AKM only)
10Front panel DIP switches (RGB 560 AKM only):
ID PIN 4 (pin 4 local monitor ID bit termination)
ID PIN 11 (pin 11 local monitor ID bit termination)
Use these DIP switches to provide proper ID bit termination if a local monitor is not connected to the interface’s buffered local monitor output.
ON — Set both switches (ID PIN 4 and ID PIN 11) to On if no local monitor is connected. Pins 4 and 11 are grounded for ID bit termination at the
OFF — Set both switches to Off if a local monitor is attached to the interface. No monitor ID bit will be set. (Default setting.)
11Buffered local monitor output
