Panasonic SL-BD20D Service Manual - Page 7

Sl-bd20, Schematic, Diagram

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• SCHEMATIC DIAGRAM SL-BD20 FC2 To Power source 2 4,4 „j,1 A D A 03 zD ''oc zD 01- 04 SVDISR 35200V FCIOI O 2 2 8 ,j2 3 3 M 4 4 00 rest 2 4 3 26 33 45 MOTOR ASSY SM I LB02O-SM SIOI I SPEED) PIE) 2 3 4 33 rpm 11.0V OV 9.4V 7 5V 45 rpm 10.8V DV 8.2V 6.3V r I I ( R) I IL) -, ( 1 RED ( ) GRN (1 1 a WHT BLU I CARTRIDGE f-- - 7 R ch I L ch I , O CND __J • Power source circuit For [XA] area For other areas PI A 2503 T50m4 02 ,6, AC 110-127/220-240V (50/60 Hz) ATI FC I 2 u0 4 I To FC2 (AC 10V) FC3 Li A I POWER) ATI FCI 43. Oo 4 For U.S.A. and Canada: AC 120V, 60 Hz For United Kingdom and Australia: AC 240V, 50 Hz For Continental Europe: AC 220V, 50 Hz o FC2 (AC 10V) 2 FC3 A IPOWER, Notes: 1. S1: Power switch in "on" position. 2. S2: Voltage selector switch. (For [XA] area only.) 3. S101: Speed selector switch in "33" position. 4. The values are of the reference voltage for the turntable rotation of this unit, measured by a DC voltmeter (high impedance) on the basis of chassis. So, some error might be included depending on the internal impedance of the measuring instrument and the unit measured. 5. Important safety notice: Components identified by p mark have special characteristics important for safety. When replacing any of these components, use only manufacturer's specified parts. 6. VR101 is the 33-1/3 rpm speed adjustment variable resistor. 7. VR102 is the 45 rpm speed adjustment variable resistor. 8. This schematic diagram may be modified at any time with the development of new technology. • Terminal guide of diode SVD1SR35200V K A K A • Block diagram AC IN -3 T 1 II POWER O Si D1 - D4 Rectifier M DC Servo Control 1 VR 1 0 2 45 r pm 33 45 (5101) SPEED VR 1 0 1 33 rpm -7-

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SL-BD20
•
SCHEMATIC
DIAGRAM
FC2
To
Power
source
2
„j,1
A
4
,
4
D
''
c
o
zD
A
03
zD
FCIOI
01-
04
SVDISR
35200V
•
Power
source
circuit
For
[XA]
area
26
45
SIOI
I
SPEED)
00
rest
33
2
3
4
PIE)
2
33
rpm
45
rpm
11.0V
10.8V
OV
DV
3
9.4V
8.2V
4
7
5V
6.3V
PI
A
2503
T50m4
02
,6,
ATI
FC
I
I
u
0
2
4
AC
110-127/220-240V
(50/60
Hz)
To
FC2
(AC
10V)
FC3
Li
A
I
POWER)
2
3
4
O
,
j2
M
4
3
8
2
MOTOR
ASSY
SM
I
LB02O-SM
r
—,
f--
—
7
I
(
1
RED
I
(
R
)
(
)
GRN
I
(1
1
a
WHT
I
IL)
BLU
I
I
CARTRIDGE
,
O
__J
Notes:
1.
S1:
Power
switch
in
"on"
position.
2.
S2:
Voltage
selector
switch.
(For
[XA]
area
only.)
3.
S101:
Speed
selector
switch
in
"33"
position.
4.
The
values
are
of
the
reference
voltage
for
the
turntable
rotation
of
this
unit,
measured
by
a
DC
voltmeter
(high
impedance)
on
the
basis
of
chassis.
So,
some
error
might
be
included
depending
on
the
internal
impedance
of
the
measuring
instrument
and
the
unit
measured.
5.
Important
safety
notice:
Components
identified
by
p
mark
have
special
characteristics
important
for
safety.
When
replacing
any
of
these
components,
use
only
manufacturer's
specified
parts.
6.
VR101
is
the
33-1/3
rpm
speed
adjustment
variable
resistor.
7.
VR102
is
the
45
rpm
speed
adjustment
variable
resistor.
8.
This
schematic
diagram
may
be
modified
at
any
time
with
the
development
of
new
technology.
•
Block
diagram
AC
IN
-
3
T
1
POWER
D1
-
D4
II
O
Si
Rectifier
For
other
areas
R
ch
L
ch
CND
ATI
FCI
4
3.
Oo
4
For
U.S.A.
and
Canada:
AC
120V,
60
Hz
For
United
Kingdom
and
Australia:
AC
240V,
50
Hz
For
Continental
Europe:
AC
220V,
50
Hz
o
FC2
(AC
10V)
2
FC3
A
IPOWER,
•
Terminal
guide
of
diode
SVD1SR35200V
K
A
K
A
M
DC
Servo
Control
VR
1
0
2
45
r
pm
33
45
(5101)
SPEED
-7-
1
VR
1
0
1
33
rpm