NEC PX-50XM4 series Service Manual page 293

PC mode
Signal name
Definition
Dot clock frequency (MHz)
H frequency (kHz)
V frequency (Hz)
H total (uS)
(dots)
H display period (uS)
(dots)
H front porch (uS)
(dots)
H sync pulse width (uS)
(dots)
H back porch (uS)
(dots)
V total (mS)
(line)
V display period (mS)
(line)
V front porch (mS)
(line)
V sync pulse width (mS)
(line)
V back porch (mS)
(line)
H sync polarity
V sync polarity
Scan type
Remarks
6 7
MAC@13" VESA
480@72Hz
640*480 640*480
30.24 31.5
35 37.861
66.667 72.809
28.571 26.413
864 832
21.164 20.317
640 640
2.116 0.762
64 24
2.116 1.27
64 40
3.175 4.064
96 128
15 13.735
525 520
13.714 12.678
480 480
0.086 0.237
3 9
0.086 0.079
3 3
1.114 0.739
39 28
Sync on G Neg
Sync on G Neg
Non Interlaced Non Interlaced Non Interlaced Non Interlaced
6-16
8 9
VESA VESA
480@75Hz 480@85Hz
640*480 640*480
31.5 36.0
37.5 43.269
75 85.008
26.667 23.111
840 832
20.317 17.778
640 640
0.508 1.556
16 56
2.032 1.556
64 56
3.81 2.222
120 80
13.333 11.764
500 509
12.8 11.093
480 480
0.027 0.023
1 1
0.08 0.069
3 3
0.427 0.578
16 25
Neg Neg
Neg Neg
CONFIDENTIAL
10
NOT USED