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3. BLOCK DIAGRAM
45rpm---6.3V
33rpm---5.6V
ree
33/45
FG
7
9
out
2
;
(S-Ol2!)
|
me
eQia
eQis
Parttern drawing motor section
($0121 Motor Control Circuit Board)
Pattern
a?
:
<BA-6301>
16
«15
'
{
Motor
is
{i
Motor
Oriving Coil!
\
: '
Drivig Coil
'
/
,
\ +
Driving Cot
\
\!
ui
Driving Coil
L3
ST
a
~~
a
4.
ADJUSTMENTS
<For this Adjustments, combined model DA-T500 or regulated DC power
supply is required. >
4-5. Speed Adjustment
e Preseting
If DA-T500 is used, connect DC power cord of the unit to DC OUT
See Bottom View on page 4.
jack of DA-T500.
If regulated DC power supply is used, connect it to the unit as Bot-
Strobo marking pattern
tom view on page 4.
4-1. Adjustment of the Auto Return
KVRI
1) The adjusting screw in top view is one to adjust the position of Auto
(S-0121)
appears to stand still,
kVR2
Same as above
. Return when stylus reaches lead-out groove.
2) Make adjustment of the screw in such a way that stylus lifts up au-
tomatically around the middle way of lead-out groove.
(S-0121)
eee
i
a s a
;
——
Namely turn the adjusting screw clockwise is for leading and coun
Note: Set kVR3 (S-0121) center position.
terclockwise if for lagging.
After adjusting the screw properly, check its operation a few times.
3)
4-2. Adjustment of the Clearance between PU plate
and Micro Switch
After replacing the micro switch, adjust the clearance between PU plate
and micro switch (See Fig. 4-1) to be approximately 0.3 mm
at the
tonearm on the arm rest by the clearance adjusting cam.
Fig. 4-1
PU
Plate
4-3. Adjustment of the main gear
When the main gear makes abnormal mechanical noise caused by
Recs
touching to the pinion gear during playing record disc, adjust its posi-
\
tion with cam 2 to make even clearance between the circuilar arc por-
of
tion of the main gear and the pinion gear.
|
\
prsseeeeuact
\
Pa
4-4. Adjustment of cartridge mounting position
;
Ne
es
Fig.
4-2
ede
these
fy
Center
Pinion Gear", aD i
choft
"ae
(DD Motor)
Adjust the cartridge mounting position as shown in Fig. 4-2.
K-11 mm
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