Panasonic RS-808 - Circuit Schematic Diagram; System Schematic Overview

Ss
C
H
E
MAT
I
C
D
i
AG
RAM
MODEL
RS-808
NOTE:
&
indicates
that
only
parts
specified
by
the manufacturer be used for safety.
Ref. No. [pert Part Name & Description
TRANSISTORS
Qi, 2, 3, a 2SC2021LNR Transistor
5
gio
||
esciar
|
“
7
O5-8 2SC202ILNR 09.10 2SC1741R Q11,12 2SC2021LNR
O
19 20 {21 Q13 2SA786RF
R15 12K
6,7,
Qll, 12 2SC2021LNR
8
9
pa oe
c49
16V10
2SA786RF
Q14, 15 2SC1741R "
a3 | |
a
}a16,17 | |
qs | |
mi 25C2060R mo
|
|
|
2SC2021LNR "
a9
2SA886R
"
MIC
C27
10¥33
74
LCH
DIODES
[1.2
|
OA90
Diode
.
=
R57
15K
fos
LN21RP
_Light
Emitting
Diode
RECORD,
~~
Ry
:
Ree
nee
|
lbs
|
|
smio2
Diode
PLAYBACK
S
|
los
S|
|
182473
ote
ee
l
C3]
R59
270
grees
LN21RP
Light
Emitting
Diode
0.0039
HEADPHONE
|
|
1$2473
Diode
_
|
Sl-
2
S1-4
D11
|
LN21RP
Light
Emitting
Diode
tet
|
D014,
15,
16,17,
18,
19
ae
|
fe
fof
fe
1
gy
|
ay
8.9
anes
|
R16
12K
TRANSFORMERS
Tl
0LBO170S_
Oscillation
Transformer
T2
7
o}
OLPN43HJX
Power
Transformer
RCH
COMBINATION
PART
mic
Sr
lr
_.
SWITCHES
lst
QSS1192
Slide
Switch
(Record/Piayback)
$e
is2
|
QSW4206
Push
Switch
(Fast
Forward
ON/OFF)
isa
|
QSB0232
Leaf
Switch
(Muting)
en
a
RECORD/
SS
SS
SS
SS
a
=|
isa
|
|
QST2224T
Lever
Switch
(Mode)
HEAR
Ace
|
Iss
|
|
gspoz
|
Leaf
Switch
(Program
Selector)
|
iss
|
Refer
to
M34
Sensing
Switch
|
|
is7
|
|
Refer
to
M53
Program
Indicator
Selector
|
018
2SA886R
ssi
QSM0062
Micro
Switch
(Power
ON/OFF)
|
Q19
2SC2060R
:
s9
is
QSR1403H
AC
Voltage
Selector
|
16V1000;—
|
l
|
=
sD
8
HEAD
\_¥
i
See
|
o200~2i9v
REFUSE
|
D4
til
SON
06,07,
D8,D9
018
S
Jig
|
9-710
~125V
cas
x
:
LN2IRP
a
(©)
{]
2
DIG
|
ie
020
|
014.15
2SCI74IR
|
ee
ea
etree
Ee
a
cle
a
Sere
ez
120
je
Se
_t
AC
POWER
|
See
aaa
ee
a
| T
ee
re
ee
DiM4~19
.
Vid
aaa
ieee
SMIOZLF
eH
|
Fe
seen
ce
ee
ae
Na
ce
ae
a
tne
et
eg
eps
eel
ee
eae
ge
aera
ager
[oes
neta
fe
Aon
wp
seat
Be
oat
Seth
hoe
ee
a
eee
oes
oat
a
ea
a
a
TERMINATIONS
(BOTTOM
VIEW)
NOTE:
o1~8
1.
§1-1~$1-12..----
Record/playback
select
switch
(shown
in
playback
position).
14.
Capacitor
values
are
in
microfarads
(uF)
unless
specified
otherwise.
N~13
2.
$2-1~S2-3
---:--
Fast
forward
ON/OFF
switch
(shown
in
OFF
position).
P=Pico-farads.
16~17
09.10
14.15
018
3.
SO
crreeeereeereee
ee
Muting
switch.
15.
All
voltage
values
show
in
circuitry
are
under
no
signal
condition
with
volurme
ares
Q19
yy
Mode
select
switch
(shown
in
EACH
STOP
position).
contro!
at
minimum
position.
bo
>
Program
select
switch.
For
measurement,
use
VTVM.
6.
56
oktitesee
Sensing
switch.
The
upper
values
should
be
measured
during
recording
and
the
lower
values
yay
Program
indication
select
switch
(shown
in
PROGRAM
1
position).
during
playback.
5:
RS)
-
Power
ON/OFF
switch.
9.
VR1,
2
ores
Level
control.
10.
VR3,
4
crreereeree
Gain
adjustment
VR.
11.
VR5,
6
creer
Level
meter
adjustment
VR.
B¢
E
C
12.
VR7--
errr
Erase
current
adjustment
VR.
B
13.
Resistor
values
are
in
ohms
(Q),
1/4
watt
unless
specified
othewise.
E
C
K=1,0000.
Resistors indicated thickly show printed type resistor.