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resonance.
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Make sure that the sound of right and left speakers are in balance.
Check for Secondary Display Modes
Test Signal:
Analog: 640*350@70Hz; 640*480@60/67/72/75/85Hz;
720*400@70Hz; 800*600@56/60/72/75/85Hz;
832*624@75Hz, 1024*768@60/70/72/75/85Hz;
1280*1024@60/75Hz
Digital: 640*350@70Hz; 640*480@60/72/75/85Hz;
720*400@70Hz; 800*600@56/60/72/75/85Hz;
1024*768@60/70/72/75/85Hz; 1152*870@75Hz,
1280*720@60Hz, 1280*1024@60Hz
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Normally when the primary mode 1280*1024@60Hz is well adjusted and
compliant with the specification, the secondary display modes will also 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.
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All Modes Reset
After final QC step, we have to erase all saved changes again and restore the
factory defaults. You should do “All Mode Reset” again.
Power Off Monitor
Turn off the monitor by pressing “Power” button.
ViewSonic Corporation
Confidential - Do Not Copy
VA712-2_ VA712b-2
18
Summary of Contents for VA712-2
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Page 63: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 60 9 Block Diagram...
Page 74: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 71 11 5 POWER PCB TOP VIEW...
Page 75: ...ViewSonic Corporation Confidential Do Not Copy VA712 2_ VA712b 2 72 11 6 POWER PCB BUTTON VIEW...