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SL-PC25
MECHANICAL ADJUSTMENT
1. Connect the oscilloscope's CH. 1 probe across
(+) and
(—) on the Servo P.C.B.
Oscilloscope setting:
VOLT.......... 100 mV
Input coupling...
2. Switch the player power
ON, and play track 9 on the
test disc (SZZP1056C).
(Playing any other track may
yield a false adjustment.)
3. Leave the player in Play mode, and place it as shown
in the figure on the right.
4. Alternately adjust the two mechanical adjusting
Ue hameat -adivstiment
screws
with the 2.0mm
allen wrench
(SZZP1101C)
until the vertical fluctuation of RF signal is
minimized and the eye pattern is most stretched.
5. After completing
the adjustment,
lock the mechanical
adjustments with
lock paint (RZZOLO1).
Allen
wrench
Range
adjustable
with a allen
wrench.
x eet RAY 29.0. 9-9 -9-9~
aint
HEROD
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% Most stretched eye pattern.
(3) BEST EYE (PD BALANCE) ADJUSTMENT
1. Connect
the oscilloscope's CH. 1 probe across
BUMRIth)
(+) and Bueteyy
(—) on the Servo P.C.B.
Oscilloscope setting:
VOLT.......... 100 mV
)
A
aint
OOK
OS
Input coupling...
AC
2. Switch
the player power ON, and play the 1kHz
(track 1) on the test disc (SZZP1054C).
3. Adjust VR101
until the vertical
fluctuation of RF
signal
is minimized
and
the eye
pattern
is most
stretched.
* Most stretched eye pattern.
ae yee
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