Planar LC12 Manual do Utilizador descarregar pdf (Página 11)

Title: Product Specification: LC12 High-Bright Monitor Page 11 of 24

Document Number: 023-0284-01 Revision: A

Figure 6. TTL Allowable Signal Levels

4.2.2.1 Mode Detection

The polarity of incoming horizontal/vertical frequencies and synchronization pulses

define the video resolution being presented. Video modes are listed in Table 3.

Video Mode Displayed

Image

Resolution

Scanning Frequency)

Sync Polarity

Horizonta

l (KHz)

Vertical

(Hz)

Horizonta

Vertical

IBM VGA 640 x 400 31.468 70 - +

IBM VGA 640 x 480 31.468 60 - -

IBM VGA

w/Border

656 x 496 31.468 60 -

IBM VGA 720 x 400 31.468 70 - -

IBM VGA

w/Border

738 x 414 31.468 70

VESA 800 x 600 48.077 72 + +

VESA 1024 x 768 56.48 70 - -

Table 3. Video Mode Definitions

4.2.2.2 Color Display Detection

The video signal source determines which type of display is connected to it

based on the state of the Monitor Sense Lines. The Monitor will indicate to

the source that it is a "color display" when Monitor Sense Line 1 (Pin 11) is

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 23 24

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