Timing Relations Of Pulse And Servo System - Sony AV-3600 Service Manual

TP-404
syncsep. in
(CTL pulse
in
the
PB mode)
s,"V~Y~V~V
TP-406
pulse
amp
TP-407
freq.
divider
out
TP-408
tracking
MV
(Dotted
line
shows
variable
range)
TP-409*
waveshaper
TP-410
(Dotted
line
shows
the
waveforms
in
the
PB mode)
Q405BASE
delayed
gating pulse
Q404
BASE
TP-403
30 PG
delay
MV
(PB switching
relations)
TP-412
switching pulse
™
Q206
BASE
switching pulse
for
B head
Q20S
BASE
switching pulse
for
A
head
x
TP-201
I
TP-305
video output
8H
\.
2
W~^
y
\S
8H
(reference
head)
B
position
of
video
heads
pole piece
Waveshaper
MM404
is
triggered
by
the
trailing
edge
of the tracking
MV
output
(above),
when
the
TRACKING
control
is
ON.
Fig.
2-
/.
Timing
reiations
of pulse
and
servo system,
(waveforms
are
not drawn
to scaie)
ie