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Adjusting the sound and picture
Signal compatibility
The signal specifications that this unit supports are as follows:
PC mode (RGB signal)
Display mode Screen resolution Horizontal Vertical
(dot × line) frequency (kHz) frequency (Hz)
Macintosh
13” colour 640 × 480 35.0 67
16” colour 832 × 624 49.7 75
IBM PC compatibles
VGA text 640 × 400 31.5 70
VGA graphics 640 × 480 31.5 60
VESA VGA 640 × 480 37.9 72
640 × 480 37.5 75
640 × 480 43.3 85
VESA SVGA 800 × 600 35.2 56
800 × 600 37.9 60
800 × 600 48.1 72
800 × 600 46.9 75
800 × 600 53.7 85
Video mode (video signal)
PAL colour system Displayed in 762 × 572 area
Notes on the PC mode
•This unit does not support XGA mode (1,024 × 768) and above. If you set the vertical frequency to 60
Hz in XGA mode, the picture is displayed but the picture quality is poor due to the signal loss.
Change the screen resolution on your PC to SVGA or VGA.
•Though the Glasstron supports the signals listed above, set the vertical frequency to 60 Hz when
using with SVGA (800 × 600), or to 72 Hz or 75 Hz with VGA (640 × 480) mode. Also adjust the
vertical frequency of the external display output signal of the connected computer.
•When you display VGA pictures (640 × 480) or PAL video pictures (video mode), the pictures are not
displayed across the entire screen. About 60% area of the screen is utilised when VGA pictures
appear, or about 84% area is utilised when PAL video pictures appear.
•Some notebook type PCs do not output the RGB signal in the adjusted screen resolution and the
vertical frequency from the external monitor port until you set the PC to external display mode.
•When you use Microsoft Windows 95 or Windows 98, install the information file included in the
supplied Windows 95/Windows 98 PC Glasstron Information Disk. For details on how to install the
information file, refer to the instruction manual “Windows 95/Windows 98 PC Glasstron Information
Disk/screen adjustment disk for Macintosh”.