Denon S-5BD, Service Manual

Page: 50 / 207

50
MEASURING METHOD AND WAVEFORMS
Measuring Disc: CD/TCD-784
DVD/VT502 or TDV-520A
BD/ABD-520 or BLX-108
To check the waveforms on the FE/SACD UNIT, the GND (-) probe to "
Q7
VC" point.
q
~
Q6
points have the certain test points shown below.
• The HF waveform (ATEST) is not normally output. The waveform can be output by setting the test mode. Cancel the
test mode to play a disc. For details, see "6. Test mode".
Other signals are output.
• When HF waveform (ATEST) is noisy or cannot discriminate the eye-pattern, replace the Travers Unit after
measuring the IOP.
※ When watching the HF waveform (ATEST), use the extending wire as short as possible.
※
It is better to use wires for extending between the probe and test points.
※ There is no test point at "
Q7
VC" . Please use the point on the + side of C217.
1. MAIN UNIT : TEST POINT AND WAVEFORMS
8U-310037 FE/SACE UNIT : Component Side
Q3 Q3
Q1 Q1
Q4 Q4
Q0 Q0
Q5 Q5
Q2 Q2
Q7 Q7
Q6 Q6
o o
i i
q q
u u
t t w w
y y
r r
e e