NEC PX-50XM4 series Service Manual page 300

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
41 42
I/O data I/O data
480@100Hz 480@120Hz
640*480 640*480
42.506 51.008
51.089 61.307
100.370 120.440
19.573 16.311
832 832
15.057 12.574
640 640
1.506 1.255
64 64
1.317 1.098
56 56
1.694 1.412
72 72
9.963 8.302
509 509
9.395 7.829
480 480
0.020 0.016
1 1
0.059 0.049
3 3
0.489 0.408
25 25
Neg Neg
Neg Neg
Non Interlaced Non Interlaced Non Interlaced Non Interlaced Non Interlaced
43
I/O data
600@100Hz
800*600
66.022
62.998
99.838
15.873
1048
12.117
800
0.606
40
0.969
64
2.181
144
10.016
631
9.524
600
0.016
1
0.048
3
0.429
27
Pos.
Pos.
6-23
CONFIDENTIAL
44 45
I/O data I/O data
600@120Hz 768@100Hz
800*600 1024*768
79.942 111.987
75.703 80.451
119.97 100.56
13.209 12.43
1056 1392
10.007 9.144
800 1024
0.300 0.214
24 24
1.001 0.786
80 88
1.901 2.286
152 256
8.335 9.944
631 800
7.926 9.546
600 768
0.013 0.012
1 1
0.04 0.037
3 3
0.357 0.348
27 28
Pos. Neg
Pos. Neg