Extron Electronics IN1776QZX - Manual (Page 10)

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IN1776QZX OPERATION MANUAL - REV 1.4 11/27/99 ©1999 - INLINE, INC.
SPECIAL CONCERNS WHEN CONNECTING TO MACINTOSH COMPUTERS
Installing the IN1776QZX without a local computer monitor.
Most Macintosh-type computers need to see a certain signal applied to the video port at boot up
in order to output a video signal and set the computer to the correct resolution.
13”/14” Color Monitor Emulation - The IN9097 input adapter cable emulates the
13”/14” mode (640 x 480 resolution) and no termination plug is required when using the
unit without a local monitor.
12” Color Monitor Emulation - In order to emulate the 12” monitor mode (512 x 384)
you must attach a 12” color monitor to the IN1776QZX
LOCAL MONITOR OUTPUT. It
is not possible to emulate the 12” mode without the monitor attached.
Working with Macintosh PowerBooks
Always turn off the PowerBook before connecting anything to the external video port.
Using the Macintosh PowerBook Video Adapter – Some older PowerBooks use
HDI-45 pin connectors. Apple provides a video adapter with these PowerBooks that
converts this unique connector to the standard 15-Pin D connector. You must first attach
this to the PowerBook before connecting the IN9097 Input Cable.
PowerBook Models Without a Video Output - Some very old Macintosh PowerBook
Models do not have a video output. You must purchase and install a third-party video
output card in order to use these models with external video devices such as the
IN1776QZX or an auxiliary computer monitor.
Macintosh G3 Models - Newer models have a 15-pin HD connector with pin outs very
similar to standard VGA. This connector can be plugged directly into the converter
using the IN8006 input cable provided. No MAC input / output adapters are required.
Video Mirroring - After connecting the PowerBook and powering it back up you may
have no menu bar on the PowerBook’s internal display. This may indicate that Video
Mirroring is off and the display connected to the IN1776QZX is now acting as the
primary monitor.
In order to display identical images on the PowerBook and the video display connected
to the IN1776QZX you will want to turn Video Mirroring on. Under Control Panels
double click on the PowerBook Display icon. A window will open with radio buttons
which allow you to turn Video Mirroring on or off.
NTSC AND PAL VERSIONS OF THE IN1776QZX
The IN1776QZX Scan Converter comes in two versions, both of which offer identical input
compatibility and features. The only difference between the two converters is the output video
signal format.
The NTSC version is sold in the United States, Canada, Mexico, Japan and other countries
which use the NTSC video standard. This unit carries no special marking.