Pioneer PDP-507XA, Service Manual

Page: 126 / 212

PDP-507XD
126
1 2 3 4
1 2 3 4
C
D
F
A
B
E
DELAY ADJUSTMENT OF THE CONTROL SIGNAL (SUS-D)
1
Measure the pulse width of the SUS-D signal.
2
Check the pulse width of the SUS-D input signal for the DK module.
Adjust the variable control so that the pulse width of the SUS-D input signal for the DK module becomes the "pulse width of
the SUS-D signal
±
5 nsec."
Note: For details on measuring points of waveform, see the figure below.
50 % of the crest value 50 % of the crest value
50 % of the crest value 50 % of the crest value
SUS-D pulse width: Tsus-Dg
Adjust so that "Tsus-Dg = Tsus-D
±
5 nsec," using the variable
control shown in the table below:
SUS-D signal (input to the DRIVE Assy)
SUS-D signal (input to the DK module)
SUS-D pulse width
Tsus-D
SUS-D pulse width
Tsus-Dg
Assy VR
Y MAIN DRIVE VR2002