Sansui DA-P500 - Block Diagram

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 asa ; ——
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