Panasonic SL-1200MK2PK Service Manual - Page 5

Measurements, Adjustments, English

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SL-1200MK2/1210MK2 • MEASUREMENTS AND ADJUSTMENTS English • Conditions of set, and instruments used 1. Remove the panel cover. 2. Remove the bottom cover (when adjusting the pitch control gain). 3. Frequency counter 4. Tester Adjustment Connection Parts adjusted Procedure 1 Pitch control ± 0% adjustment Frequency counter (+) - TP27 (-) - Earth point VR301 (Fig..3) 1. Connect the frequency counter and turn the power supply ON. 2. Set the pitch control knob to "0". (Indicator lights up.) 3. Adjust VR301 so that the frequency is 262.08 kHz ± 0.05 kHz. Pitch control gain 2 adjustment Tester (+) - CN102 terminal ® . (-) - CN102 terminal ® VR302 (Fig. 4/ 1. Set the pitch control knob to "0". 2. Pull out the connector CN102 of drive P.C.B. 3. Connect the tester to terminals,®and®of connector CN102 on the pitch control P.C.B. side. 4. Adjust VR302 so that the resistance value of the tester is 2.7 Id2± 0.1 kn. 3 Brake adjustment VR201 (Fig. 3) 1. Adjust VR201 so that the rotation at 33 r.p.m. stops within the angle of 90° -120° after depressing the stop button.

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SL-1200MK2/1210MK2
•
MEASUREMENTS
AND
ADJUSTMENTS
•
Conditions
of
set,
and
instruments
used
1.
Remove
the
panel
cover.
2.
Remove
the
bottom
cover
(when
adjusting
the
pitch
control
gain).
English
3.
Frequency
counter
4.
Tester
Adjustment
Connection
Parts
adjusted
Procedure
1
Pitch
control
±
0%
adjustment
Frequency
counter
(+)
—
TP27
(—)
—
Earth
point
VR301
(Fig..3)
1.
Connect
the
frequency
counter
and
turn
the
power
supply
ON.
2.
Set
the
pitch
control
knob
to
"0".
(Indicator
lights
up.)
3.
Adjust
VR301
so
that
the
frequency
is
262.08
kHz
±
0.05
kHz.
2
Pitch
control
gain
adjustment
Tester
(+)
—
CN102
terminal
®
.
(—)
—
CN102
terminal
®
VR302
(Fig.
4/
1.
Set
the
pitch
control
knob
to
"0".
2.
Pull
out
the
connector
CN102
of
drive
P.C.B.
3.
Connect
the
tester
to
terminals,®and®of
connector
CN102
on
the
pitch
control
P.C.B.
side.
4.
Adjust
VR302
so
that
the
resistance
value
of
the
tester
is
2.7
Id2±
0.1
kn.
3
Brake
adjustment
VR201
(Fig.
3)
1.
Adjust
VR201
so
that
the
rotation
at
33
r.p.m.
stops
within
the
angle
of
90
°
-120
°
after
depressing
the
stop
button.