Service manual

ViewSonic Corporation Confidential - Do Not Copy Q7b-3

2. Specification

2-1 GENERAL specification

Test Resolution & Frequency 1280x1024 @ 75Hz

Test Image Size Full Size

Contrast and Brightness Controls

Factory Default:

Contrast = 90%, Brightness = 100%

2-2 VIDEO INTERFACE

Input Connector (refer the appendix A) DB-15 (Analog)

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 2B

Video RGB (Analog)

Video Signals

Separate Sync

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

DDC2B

Compliant with Revision 1.0

Sync Compatibility

Separate Sync

Video Compatibility

Shall be compatible with all PC type computers,

Macintosh computers, and after market video

cards

Resolution Compatibility

640x350, 720x400, 640x480, 800x600, 832x624,

1024x768, 1152x864,

1152x870, 1280x960, 1280x1024

Exclusions Not compatible with interlaced video

2-3 USB INTERFACE

N/A