Measuring Method And Waveforms - Denon S-52 DAB Service Manual

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MEASURING METHOD AND WAVEFORMS

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To check the waveforms on the FEP, the GND (-) probe of
the oscilloscope to "VHALF" point.
(Except for lnner SW, TRVSW)
NOTES
Measuring Disc: CD/TCD-784
(It is better to use wires for extending between the probe and
test points.)
• When watching the HF waveform, use the extending wire
as short as possible.
• When HF waveform is noisy or cannot discriminate the
eye-pattern, replace the Traverse Unit after measuring the
lop.
• ~ points have the certain test points shown below.
TE
L 13942296513
7
5
4
8
For ARF , use NARF
points.
ARF NARF
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IU-3851 FEP Unit : Foil Side
as the reference (probe － ) for the oscilloscope, VHALF
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as the reference voltage for other
VHALF
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