Technics RS-615US-D - Page 20

SCHEMATIC DIAGRAM MobDEL RS-615US-D
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Tr13
Tr15
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Tr21
2801327
28€1327
2SC828
2SC828
2SK30AD
2SC828
©
2SA564
28C828
2801318
1}
$
H
2SC828
1
LINE
IN
aosaix
1-44
Q)—o
LINE
OUT
C19 16v47
a+
C89 0.0056
10.5V
11.2V
C53
Wok 500.1
LEFT
x
RECORD/
PLAYBACK
HEAD
R155 6.8K
tt
Tr22
280828
LINE OUT
ee
P 33 gy
HEADPHONES
O
Tr14 Tri6 Tr8 Tr20
'
I
2,4
Ise
28C828
2SA564
28C828
2SC1318
!
&
2801327
Tr6 Tr8 Tr10 ,12 FET2
2801327 280828 28828 2SK30AD
R40 47K
C20 16V10
R84 220 (172W)
R110
120K
R106 = C54
8.2K
O
|
50V0.1
|
H
C90
0.0056
|
RIGHT
C92 0.0056 |
RECORD/
|
PLAYBACK
|
|
Es
680P
|
HEAD
>—O-O
RG
|
ie
.
aaa
Dae
aap
C86.
680P
| ri
0.027 6
c201
202
(8)
[30
22K]
|
| aT “ap O
|
cc)
R32
47K
|
mo
ee
ad
|
S5-1
$2-8
|
|
fw
OP
OO
|
0,00
r
pe
ee
ee,
te
ee
a
|
O
|
|
|
|
(
1.
$1-1~S$1-8,
$2-1~S2:
-
Record/playback
select
switch
(shown
in
playback
position).
|
|
|
|
ner
5y
2.
$3-1,$3-2
cree
Dolby
IN/OUT
switch
(shown
in
OUT
position).
|
13,5
|
ACIB.EV
3.
$4-1,$4-2
.
Input
select
switch
(shown
in
MIC
position).
1201
4
|
|
oO
4.
$5-1~S5-6-
‘ape
select
switch
(shown
in
NORMAL
position)
|
u
=
te
ST
|
|
Te
'
1---
NORMAL,
2---Fe-Cr,
3---
CrO2,
C---Center.
2.0K
|
|
5.
-Muting
switch
(off
at
REC/PLAY
position).
|
Bl
|
7
|
6.
-
Motor
ON/OFF
switch.
o-d
7
|
|
7.
“AC
power
ON/OFF
switch.
>
Te
|
Or
||
:
8.
-
AC
voltage
select
switch.
O-O
z
Ca
|
|
1
O
9.
:
Playback
level
adjustment
VR.
6
y)
I
|
'
O
10.
-
Record
input
level
control.
|
2
ro
|
11.
Dolby
NR
adjustment
VR.
|
0204
SE
a
J
ie
Se
eee
ek
eee
ee
ee
12.
-
Level
meter
adjustment
VR.
|
NES
ee)
ie
apa
-
13.
“Record
level
adjustment
VR.
e,
14,
-
Bias
current
adjustment
coil.
|
Tr
201
28C1347
TERMINATIONS
(BOTTOM
VIEW)
15.
oe
are
in
ohms
(0),
1/4
watt
unless
specified
otherwise.
a
=1,0000.
2801327,
2SC828
16.
Capacitor
values
are
in
microfarads
(uF)
unless
specified
otherwise.
SA564,
3801318
2SK30AD
T1,2
7201
P=Pico-farads.
2801347,
2501384
17.
All
measurements
are
under
no
signal
conditions
with
volume
at
minimum
Position.
®®@
Use
VTVM
for
voltage
measurements.
®
®
The
upper
values
should
be
measured
during
recording
and
the
lower
values
during
playback.
18.
For
parts
which
are
shaded
(
),
only
parts
specified
by
the
manufacturer
should
be
used
@ ® for replacement in critical circu
® ©
E
C Bg S'6 D