ViewSonic VX500PLUS-1 Service Manual page 20

Signal name
H-frequency (khz)
V-frequency (hz)
Pixel rate (mhz)
H-sync
H-back porch
H-total
H- front porch
V-sync
V-back porch
V-total
V-front porch
H-sync. Polarity
V-sync Polarity
H-resolution (dots)
V-resolution (lines)
Digital timing mode table
Signal name
H-frequency (khz)
V-frequency (hz)
Pixel rate (mhz)
H-sync
H-back porch
H-total
H- front porch
V-sync
V-back porch
V-total
V-front porch
H-sync. Polarity
V-sync Polarity
ViewSonic Corporation
Mode 21
symbol 720P
45.000
60.00
74.250
Ths 40
Thb 270
Thd 1658
Tv 60
Tvs 5
Tvb 20
Tvd 750
Tvf 5
Negative
Negative
1280
720
Mode 1
symbol text
31.468
70.087
25.175
Ths 96
Thb 48
Thd 800
Tv 16
Tvs 2
Tvb 60
Tvd 449
Tvf 37
Positive
Negative
2 3
Dos-text VGA
31.468 31.468
70.077 60.000
28.327 25.175
108 96
54 48
900 800
18 16
2 2
35 35
449 449
12 10
Negative Negative
Positive Negative
17
Confidential – Do Not Copy
4 5
VGA VGA
31.468 37.862
59.941 72.807
25.175 31.501
96 40
48 128
800 832
16 24
2 3
33 28
525 520
10 9
Negative Negative
Negative Negative
VX500+-1