Hardware Installation
6
C. Monitor
First you must determine the resolution your monitor supports. Then you
must set DIP switches SW1 through SW6 to the appropriate settings for
proper monitor operation. See Table 2 for additional information.
• Settings A and B below are recommended for most applications, wherein
the resolutions are selected in the Macintosh
®
Control Panel/Monitors menu.
• Setting A is the safest choice for older non-multisync SVGA monitors (640 x
480 only for VGA monitors).
• Setting B is the preferred choice for multisync SVGA monitors because of
the higher refresh rate.
Table 2
Setting SW1
SW2 SW3 SW4 SW5
SW6
Horiz.
Vertical Resolution
Monitor Notes
Scan
Scan
(kHz)
(Hz)
A
ON
ON
31.5
60
640 x 480
VGA
ON
ON
35.2
50
800 x 600
SVGA
B
ON
ON
ON
35
67
640 x 480
VGA
ON
ON
ON
49
75
800 x 600
SVGA
C
ON
35
67
640 x 480
13” color
D
ON
ON
512 x 384
NTSC (underscan)
E
ON
ON
24.48
60.15
512 x 384
12” color
F
ON
ON
ON
68.7
75
1152 x 870
21” color
G
ON
640 x 480
NTSC (overscan)
H
ON
1152 x 870
21” monochrome
I
ON
ON
640 x 870
Portrait
J
ON
ON
60.2
75
1024 x 768
19” color
K
ON
ON
49.7
75
832 x 624
16” color
L
ON
ON
ON
640 x 480
PAL
PLEASE VERIFY YOUR MONITOR SPECIFICATIONS AND
SELECT THE CORRECT SETTING BEFORE POWERING UP. AN
INCORRECT SETTING MAY CAUSE IRREVERSIBLE DAMAGE
TO YOUR MONITOR!
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