Rf Pll Free-Run Frequency Check; Focus/Tracking Gain - Sony CDP-791 Service Manual

CD
p
CDP-791/X1
1
1ES
RF PLL
Free -run
Frequency Check
Procedure
:
1.
Connect
frequency counter
to
test point
(PCK)
with
lead wire.
Main
board
ffeqUenCy COUnt *
r
2.
Turn Power
switch
on.
3.
Confirm
that reading
on
frequency counter
is
4.
3218MHz.
Focus/Tracking Gain
This
gain has a margin,
so even
if it is slightly
off.
There
is
no problem.
Therefore, do not
perform,
this
adjustment.
Please note that
it
should be
fixed to mechanical
cen-
ter position
when
you moved
and
do not
know
original position.
Adjustment
Locations
:
[BD
board]
—
conductor
side
—
[Main
board]
- Component
Side
-
-
6
-