Quantum Data 881 User Manual page 1026

Video test instrument
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Appendix C Error Messages
998
DDC2B arbitration lost
Low level DDC communications failed with Unit Under Test (UUT). DDC bus arbitration
lost with the UUT.
DDC2B timeout on bus
Low level DDC communications failed with Unit Under Test (UUT). DDC communications
timed out with the UUT.
EDID header not found
A valid block of header data could not be found in the EDID data read back from Unit
Under Test (UUT).
DDC old monitor
A DDC compliant Unit Under Test (UUT) could not be found connected to the generator.
I2C address missing
There was a communications error within the generator hardware architecture because
the device address was missing.
I2C count missing
There was a communications error within the generator hardware architecture because
the data count was missing.
I2C stream too big
There was a communications error within the generator hardware architecture because
the data stream size exceeded the size supported by the device.
I2C data missing
There was a communications error within the generator hardware architecture because
the device data stream was missing.
I2C register missing
There was a communications error within the generator hardware architecture.
I2C data byte missing
There was a communications error within the generator hardware architecture because
the device data stream had missing data.
Serial digital video PLL not locked
There is an internal problem with the generator's serial digital video hardware's Phase
Lock Loop circuit.

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