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5.4 Trouble-shooting
In case of unsuccessful lock, check the following points :
DSP code must be loaded every time a new DUT is plugged in (in the case of TU1216).
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Check channel configuration settings.
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Have the power supply connections been done properly?
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Is there any current limitation on the +5.0Volts power supply? 0.5A current is needed.
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Press the I
2
C check button to verify that I
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In the control software window (press the configuration button), check the type of tuner used (should be set
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to PHILIPS).
Is the tuner in lock? (First, allow the software to read the tuner registers).
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Is the gain in an automatic configuration? Is the RF input level correct?
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Is the spectral inversion forced or in automatic search configuration?
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2
C communications are correct.
21
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BU RF Solutions
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