CTX PV722E, Service Manual

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Service Manual
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PV722i /PV722E
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The monitor shall support an internal scaler to enable the monitor to display lower resolution
video modes. The scaler shall convert all lower resolution modes up to 1280x1024. The
monitor shall support all the modes listed in Table 1.
3.2.1 Analog
Table 1. Supported Timing
VESA Standard mode :
Display Format IBM VGA VESA VESA VESA VESA VESA
Horizontal Dots 720 640 640 640 800 800 800
Vertical lines 400 480 480 480 600 600 600
Horizontal Frequency
( KHz) 31.469 37.861 37.5 37.879 48.077 46.875
Vertical Frequency ( Hz ) 70 59.94 72.809 75 60.317 72.188 75.000
Pixel Rate ( MHz ) 28.322 25.175 31.5 31.5 40 50 49.5
H. Sync. Polarity - - - - + + +
A
μ
S ( Period )
31.778 26.413 26.667 26.4 20.8 21.333
B
μ
S ( Pulse Width )
3.813 1.270 2.032 3.2 2.4 1.616
C
μ
S ( Back Porch )
1.907 4.063 3.810 2.2 1.28 3.232
D
μ
S ( Active Area )
25.422 20.317 20.317 20.0 16.0 16.162
E
μ
S (Front Porch )
0.636 0.763 0.508 1.00 1.12 0.323
V. Sync. Polarity + - - - + + +
O ms ( Period ) 16.683 13.735 13.333 16.579 13.853 13.333
P ms ( Pulse Width ) 0.064 0.079 0.080 0.106 0.125 0.064
Q ms ( Back Porch ) 1.048 0.739 0.427 0.607 0.478 0.448
R ms ( Active Area ) 12.711 15.253 12.678 12.800 15.840 12.480 12.8
S ms ( Front Porch ) 0.318 0.237 0.027 0.026 0.770 0.021
Display Format VESA VESA VESA VESA VESA VESA
Horizontal Dots 1024 1024 1024 1152 1280 1280
Vertical lines 768 768 768 864 1024 1024
Horizontal Frequency 48.363 56.746 60.023 67.5 63.981 79.976
Vertical Frequency ( Hz ) 60.004 70.069 75.029 75 60.013 75.025
Pixel Rate ( MHz ) 65.0 75 78.75 108 108 135
H. Sync. Polarity - - + + + +
A
μ
S ( Period )
20.667 17.707 16.660 14.815 15.631 12.504
B
μ
S ( Pulse Width )
2.092 1.813 1.219 1.185 1.180 1.067
C
μ
S ( Back Porch )
2.462 1.920 2.235 2.370 2.065 1.837
D
μ
S ( Active Area )
15.754 13.653 13.003 10.667 11.797 9.481
E
μ
S (Front Porch )
0.369 0.321 0.203 0.593 0.590 0.119
V. Sync. Polarity - - + + + +
O ms ( Period ) 16.666 14.272 13.238 13.333 16.663 13.329
P ms ( Pulse Width ) 0.124 0.106 0.050 0.044 0.047 0.038
Q ms ( Back Porch ) 0.6 0.513 0.466 0.474 0.594 0.475
R ms ( Active Area ) 15.88 13.599 12.795 12.8 16.006 12.804
S ms ( Front Porch ) 0.062 0.054 0.017 0.015 0.016 0.012