Measurements And Adjustments; The State Of Set And Th È Use Apparatus; Alignment Points - Technics SL-1210M5GE Service Manual

SL - 1210 M 5 GE / SL
-
1210 M 5 GEB / SL - 1210 M 5 GGN / SL
-
1210 M 5 GPP
9 Measurements and Adjustments
9.1
.
The state of set and th
è
use
apparatus
PITCH CONTROL
±
0 %
ADJUSTMENT
VR 501
É
~
[
•
Make
th
è
following adjustments after replacing parts as
IC
' s
,
Transistore
,
Diodes
,
etc
.
•
Condition of th
è
set
.
1
. Power
switch : ON
2
.
Pitch control
:
Center position
3
. Speed
selector switch
:
33 - 1 / 3 r / min
•
Instruments to be used
-
Tester
-
Frequency
counter
Measuring
apparatus
o o o
©
O
XL
Lever
o
+
c >
Center
ir
o
©
O O P PITCH CONTROL
( 2 ) P
.
C . B
.
053
PITCH CONTROL
( 1 ) P
.
C
.
B
.
9.2
.
Measurements and
Adjustments
9.2
.
1
.
Pitch control
±
0 % adjustment
( PITCH )
1
.
Connect
th
è
frequency counter [ (
+
) : TP
1
,
(
-
) : GND ] and turn
th
è
power supply
ON
.
2
.
Set th
è
pitch control knob
( VR 303 ) to " 0
"
( center
position )
.
( Indicator lights up .
)
3
.
Adjust VR
501
so
that th
è
output
becomes th
è
maximum
. ( Fig .
2 )
9.2
.
2
.
Brake adjustment ( BRAKE )
I
.
Adjust
VR 201 so
that th
è
rotation at 33 - 1 / 3 r / min stops
within th
è
stop range after pressing th
è
stop button
.
(
Fig
.
l )
( Fig
.
3 )
9.3
.
Alignment points
( Fig
.
2 )
The direction of
EP record adaptor
.
Turntable
Turntable sheet
Record disc ( 30
cm )
Stop range
Stop signal
(Stylus tight position )
( Fig
.
3 )
PITCH CONTROL
±
0 %
ADJUSTMENT
VR
501
Measuring
apparatus
o o o
Lever
O
-
a
*
r
—
Center
s
© o
m
O O P
PITCH
CONTROL
( 2 ) P
.
C . B .
PITCH CONTROL
( 1 ) P . C . B .
( Fig
.
1 )
15