Technical information

2.6.3.2 Functional Characteristics
Video input: analog, direct-drive, 75 ohm, 0 to 0.7 V.
CRT faceplate: dark, nonreflective (etched or silica coated).
CRT phosphor: medium persistence (P22).
+------------------------------------------------------------------------+
¦ MODE ¦ 1 ¦ 2 ¦ 3 ¦ 4 ¦
+------------------------------+----------+---------+----------+---------¦
¦ Horizontal deflection rate ¦ 39.4 ¦ 39.4 ¦ 39.4 ¦ 61.1 ¦
¦ (kilohertz) ¦ ¦ ¦ ¦ ¦
+------------------------------+----------+---------+----------+---------¦
¦ Vertical deflection rate ¦ 87.8 ¦ 87.8 ¦ 75.0 ¦ 75.8 ¦
¦ (frames per sec) ¦ ¦ ¦ ¦ ¦
+------------------------------+----------+---------+----------+---------¦
¦ Horizontal blanking time ¦ 4.56 ¦ 4.56 ¦ 4.56 ¦ 4.47 ¦
¦ (microseconds) ¦ ¦ ¦ ¦ ¦
+------------------------------+----------+---------+----------+---------¦
¦ Vertical blanking time ¦ 2.206 ¦ 0.887 ¦ 0.737 ¦ 0.622 ¦
¦ (milliseconds) ¦ ¦ ¦ ¦ ¦
+------------------------------+----------+---------+----------+---------¦
¦ Screen lines (including ¦ 362 ¦ 414 ¦ 496 ¦ 768 ¦
¦ border) ¦ ¦ ¦ ¦ ¦
+------------------------------+----------+---------+----------+---------¦
¦ Screen lines (excluding ¦ 350 ¦ 400 ¦ 480 ¦ 768 ¦
¦ border) ¦ ¦ ¦ ¦ ¦
+------------------------------+----------+---------+----------+---------¦
¦ Interlace ratio ¦ 1:1 ¦ 1:1 ¦ 1:1 ¦ 1:1 ¦
+------------------------------+----------+---------+----------+---------¦
¦ ¦ ¦ ¦ ¦ ¦
+------------------------------------------------------------------------+
Resolution:
 Mode 1 720 x 350 Pels, 88 Hz, noninterlaced
 Mode 2 720 x 400 Pels, 88 Hz, noninterlaced
 Mode 3 640 x 480 Pels, 75 Hz, noninterlaced
 Mode 4 1024 x 768 Pels, 75 Hz, noninterlaced
PS/2 Displays Maintenance Manual
Functional Characteristics
¦ Copyright IBM Corp. 1993
2.6.3.2 - 1