![background image](http://html1.mh-extra.com/html/viewsonic/vx900-2/vx900-2_service-manual_1020039012.webp)
!
20
Reserved 20
Reserved. No connection
21
Reserved 21
Reserved. No connection
22 GND
Logic
Ground
23
RXC+
TMDS positive differential input, reference clock
24
RXC-
TMDS negative differential input, reference clock
2.3.4.3 Audio Connector
2.5 mm Stereo jack x 1,
3.5mm Microphone jack x 1
2.3.5 Signal Timing
2.3.5.1 User Timing Mode memory
always do auto image adjust after timing mode change
2.3.5.2 Timing mode Change
maximum time for mode Change with auto image adjust 7 sec.
2.3.5.3
Signal Timing Table
The factory test input video signal is defined as the following table:
Preset H.sync V.sync SYNC
POL. Video
Mode
Description
No. Frequency Frequency
H-
V-
MOD [1]
31.468
̈́
1.0KHz 70.0
̈́
1.0Hz
+ - 640X350(70) Text
mode
MOD [2]
31.468
̈́
1.0KHz 70.0
̈́
1.0Hz
- + 720X400(70)
Dos
text
MOD [3]
31.468
̈́
1.0KHz 59.94
̈́
1.0Hz
- - 640X480(60)
VESA
STANDARD
MOD [4]
35.01
̈́
1.0KHz 66.67
̈́
1.0Hz
- - 640X480(66)
MAC
MOD [5]
37.86
̈́
1.0KHz 72.81
̈́
1.0Hz
- - 640X480(72)
VESA
STANDARD
MOD [6]
37.5
̈́
1.0KHz 75.0
̈́
1.0Hz
- - 640X480(75)
VESA
STANDARD
MOD [7]
43.27
̈́
1.0KHz 85.0
̈́
1.0Hz
- - 640X480(85)
VESA
STANDARD
MOD [8]
35.16
̈́
1.0KHz 56.25
̈́
1.0Hz
+ + 800X600(56)
VESA
STANDARD
MOD [9]
37.88
̈́
1.0KHz 60.32
̈́
1.0Hz
+ + 800X600(60)
VESA
STANDARD
MOD [10]
48.077
̈́
1.0KHz 72.19
̈́
1.0Hz
+ + 800X600(72)
VESA
STANDARD
MOD [11]
46.875
̈́
1.0KHz 75.0
̈́
1.0Hz
+ + 800X600(75)
VESA
STANDARD
MOD [12]
53.67
̈́
1.0KHz 85.0
̈́
1.0Hz
+ + 800X600(85)
VESA
STANDARD
MOD [13]
49.72
̈́
1.0KHz 74.5
̈́
1.0Hz
- - 832X624(75)
MAC
MOD [14]
48.363
̈́
1.0KHz 60.0
̈́
1.0Hz
- -
1024X768(60)
VESA
STANDARD
MOD [15]
58.01
̈́
1.0KHz 72.08
̈́
1.0Hz
- -
1024X768(72)
VESA
STANDARD
MOD [16]
60.023
̈́
1.0KHz 75.0
̈́
1.0Hz
+ + 1024X768(75)
VESA
STANDARD
MOD [17]
68.67
̈́
1.0KHz 85.0
̈́
1.0Hz
+ + 1024X768(85)
VESA
STANDARD
!
8
ViewSonic Corporation
Confidential – Do Not Copy
VX900-2
Summary of Contents for VX900-2
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