Service manual

ViewSonic Corporation Confidential - Do Not Copy VX1935wm-1
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1.5.13 Check for Secondary Display Modes
Test Signal:
Analog / Digital:
640*350@70Hz 640*480@60HZ / 75HZ 720*400@70Hz
800*600@60HZ / 75HZ 832*624@75Hz 1024*768@60HZ / 75HZ
1280*1024@60 / 75Hz
- Normally when the primary mode 1440x900@60Hz is well adjusted and compliant
with the specification, the secondary display modes will be great possible to be
compliant with the spec. But we still have to check with the general test pattern to
make sure every secondary is compliant with the specification.
1.5.14 Memory Recall
After final QC step, we have to erase all saved changes again and restore the
factory defaults. You should do “Memory Recall” again.
1.5.15 Power Off Monitor
Turn off the monitor by pressing “Power” button.
2. Firmware Upgrade Procedure
When you receive the returned monitor, please check whether the firmware version is the
latest.
If not, please do the following procedures to upgrade it to the latest version.
2.1 Equipment Needed
- VX1935WM Monitor
- Fixture for Firmware Upgrade
- VGA Cable
- PC (Personal Computer)
- ISP Tool
- Firmware Upgrade Program
- One additional monitor for checking the program execution
z ISP tool instruction
15 pin D-Sub LPT cable