Service manual

ViewSonic Corporation Confidential - Do Not Copy
5
2. GENERAL specification
Test Resolution & Frequency 1440x900 @ 60Hz
Test Image Size Full Size
Contrast and Brightness Controls
Factory Default:
Contrast = 70%, Brightness = 100%
3. VIDEO INTERFACE
Analog Input Connector DB-15 (Analog),
Digital Input Connector DVI-D (Digital),
Default Input Connector Defaults to the first detected input
Video Cable Strain Relief Equal to twice the weight of the monitor for five minutes
Video Cable Connector DB-15 Pin out Compliant DDC 1/2B
Video Signals
1. Video RGB (Analog)
Separate, Composite, and Sync on Green
2. TMDS (Digital)
Video Impedance 75 Ohms (Analog), 100 Ohms (Digital)
Maximum PC Video Signal 950 mV with no damage to monitor
Maximum Mac Video Signal 1250 mV with no damage to monitor
Sync Signals TTL
DDC 1/2B Compliant with Revision 1.3
Sync Compatibility Separate Sync, Composite Sync, SOG
Video Compatibility
Shall be compatible with all PC type computers, Macintosh
computers, and after market video cards
Resolution Compatibility
640 x 350*, 640 x 480, 720 x 400* (640 x 400*), 800 x 600, 832 x
624, 1024 x 768, 1152 x 864, 1152 x 870, 1280 x 720, 1280 x
960, 1280 x 1024 , 1400 x 1050 , 1440 x 900
* The image vertical size might not be full screen.
But the image vertical position should be at the center.
Exclusions Not compatible with interlaced video
4. POWER SUPPLY
Internal Power Supply Part Number:ILPI-024
Input Voltage Range
90 to 264 VAC (100~240VAC ±10%)
Input Frequency Range 47 to 63 Hertz
Short Circuit Protection Output can be shorted without damage
Over Current Protection 5.0 A typical at 14.0 VDC
Leakage Current 3.5mA (Max) at 254VAC / 60Hz
VX1935wm-3