Video and General Performance Verification
Composite Analog Input
Clamp Off Check (Option
CPS)
Apply a small DC
voltage and verify that it is not clamped to zero.
1. Press FACTORY.
2. Disconnect all terminators from the Composite inputs.
3. Connect a cable from a Composite A connector to the retractable hook clip.
4. Select CONFIG > Composite Input >DC Restore > Off.
5. Press CMPST A and FULL.
6. Press VAR a
nd then use the GENERAL knob to reduce the gain to 0.5X
7. Hold the hook tips on the battery, red to positive, black to negative.
8. Verify that the waveform is offset up about 1.5 volts and is not being clamped
to ground.
9. Record Pass or fail in the test record.
106 Waveform Rasterizers Specifications and Performance Verification
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