Technical information
2.3.3.2 Functional Characteristics
Video input: analog, direct-drive, 75 ohm, 0 to 0.7 V.
CRT faceplate: dark, antiglare (etched or silica coated).
CRT phosphor: medium persistence
CRT resolution: 0.29 mm (max) dot pitch
+------------------------------------------------------------------------+
¦ MODE ¦ 1 ¦ 2 ¦ 3 ¦ 4 ¦
+-----------------------+------------+-----------+-----------+-----------¦
¦ Horizontal deflection ¦ 31.5 ¦ 31.5 ¦ 31.5 ¦ 35.5 ¦
¦ rate (kilohertz) ¦ ¦ ¦ ¦ ¦
+-----------------------+------------+-----------+-----------+-----------¦
¦ Vertical deflection ¦ 70 ¦ 70 ¦ 60 ¦ 43.5 ¦
¦ rate (frames per sec) ¦ ¦ ¦ ¦ ¦
+-----------------------+------------+-----------+-----------+-----------¦
¦ Horizontal blanking ¦ 5.72 ¦ 5.72 ¦ 5.72 ¦ 5.13 to ¦
¦ time (microseconds) ¦ ¦ ¦ ¦ 5.35* ¦
+-----------------------+------------+-----------+-----------+-----------¦
¦ Vertical blanking ¦ 2.76 ¦ 1.12 ¦ 0.92 ¦ 0.69 to ¦
¦ time (milliseconds) ¦ ¦ ¦ ¦ 0.70* ¦
+-----------------------+------------+-----------+-----------+-----------¦
¦ Vertical ¦ 362 ¦ 414 ¦ 496 ¦ 768 ¦
¦ addressability ¦ ¦ ¦ ¦ ¦
¦ (lines) ¦ ¦ ¦ ¦ ¦
+-----------------------+------------+-----------+-----------+-----------¦
¦ Interlace ratio ¦ 1:1 ¦ 1:1 ¦ 1:1 ¦ 2:1 ¦
+-----------------------+------------+-----------+-----------+-----------¦
¦ ¦ ¦ ¦ ¦ ¦
+------------------------------------------------------------------------¦
¦ Note: *Rate varies with pel resolution ¦
+------------------------------------------------------------------------+
PS/2 Displays Maintenance Manual
Functional Characteristics
¦ Copyright IBM Corp. 1993
2.3.3.2 - 1