Technics RS-M206 Service Manual

8
1
6
5
CIRCUIT
BOARD
AND
WIRING
CONNECTION
DIAGRAM
$7: PLAY SWITCH S8: FF/REWIND SWITCH
RECORD/PLAYBACK
HEAD
1
yet
ceymmme
PNK
0
aux
=
5]
[ot
LUG
TERMINAL
oO
pK
SLES
——om
Ts
Ca
:
‘BRN
|
ERASE HEAD
5
Buk
MOTOR
CONNECTOR BY
Penn ooo} ve
EZ
(10
B+
(bias)
10V
18}
elk
B-
(bias)
-10V
7 FEY) ae REC SIGNAL OUT (L-CH)
3 [GROUND |
i
F
-
A
"
.
ce
ue
DoOnDN
gy
-
6
|
PLAY
SIGNAL
IN
(R:CH)
B-
(bias)
~10V
B+
(bias)
10V
B+
(bias)
13V
B-
(bias)
-13V
on
—
se
occas
or
- )
:
16 ue
. |
i
° L
7;
:
ee if ve
( A
»
Yh
i
. '
magus
yo
i
3
TIPOWER SUPPLY CIRCUIT BOARD
i
:
i
i
i
4
* (—Dl ...[For all European areas].
POWER SUPPLY CIRCUIT BOARD
Lat
$5: POWER
ON/OFF SWITCH
AC POWER CORD
", es 105) 0 1C1
= ¥ a fe] [M5219L] 1C3, 4
=
Wt
a
)
pes
\
ee)
[
[NE646N]
‘)
as
ed
1
OV
i.
(
2
OV
we
ee
»
3
0.1V
\
‘
4
OV
?
5
ov
fe
6
OV
atau 9.6V_ (10.0V) 7 | -01V
106 PILOT LAMP.
ZN
a
9
|
Tov
C103)
[ ] 10 ov
ae
;
1
ov
143
OV
cae
|
Qever
meter
=“
4!
2
OV
12
OV
:
|
CIRCUIT
BOARD!
loa
3
OV
[43
OV
|
a
Connection
Point
(B)
4
-12.9V
(-13.7V)
14
OV
| 5 ov 15 ov il
CUIT
BOARD
_
6
OV
16
9.4V
(10.0V)
|!
I
|
;
Connection
Point
(A)
eee
een
7
OV
|
B-
(bias)
~10V
:
LEVEL
METER
LEVEL
METER
8
13.4V
(14.3V)
ees
|
|
DW
Rec
wwoicaror
Q7,8
Q12
ON/OFF
SWITCH
|
|
NOTES:
[2SC1685-Q]
[2SC1685-Q]
|
|
BLK
......Black
E
E
Cc
B
Q14
:
|
base ee
SENSE
Q1,2
Q5,
6
a
PLAY|
OV
|
9.9V
|_Ov
[2SC1846R]
Lames
4
GRY......Gray
[2SC1685-Q]
[2SC1685-Q]
SToPT
ov
ov
TO7V
E
E
C
B
il
GRN
...Green
E
C
B
E
:
PLAY
|
10.0V
|
14.2V
|
11.5V
=
L.BLU...Light
Bu
mat
ov
|
ov
|
vl
Qi1
Q13
REC
|
9.7V/13.3V|11.4V
im
NIL
......
No
Color
Mark
-0.
PLAY
|
CrO
OV
:
I
:
eRe
connee
Rec
|
ov
[
ov
[-0.3V
[2SA564]
Gis
Rook
eee
PNK......Pink
Q3,
4
E
c
[
8
ea
ee
ee
|
RED
......Red
2
PLAY
PLAY
|
10.0V
|
—-0.4V[
9.9V
[2SA885Q]
*
(A
...[For
Australia].
SLD
......Shield
Wire
[25C1685-Q]
REC
:
Normal/REC
REC
|
9.6V
oa
9.6V
PLAY
|-10.3V]
-13.6V
|
-10.9V
VLT
......Violet
7
E
¢
|
B
[0.7V_|
[Metal/REC
PsToP|
9iv{[
98V[
9.1V
REC
|-10.2V|
-12.8V|-10.9V
WHT.
.....White
PLAY
|-8.9V|-6.5V[—8.2V
zd
YEL
......Yellow
[REC
[-8.8V|-7.0V
|
-8.2V
oitaaetar
acer
nass.
NOTES:
Voltage
at
playback
mode.
Voltage at record/playback mode.
... Voltage Normal tape mode.
... Voltage at CrO, tape mode.
Voltage at Metal tape mode.
For measurement, use VTVM.
¢ The supply parts number is described alone in the replacement parts list.
© The circuit shown in 2 on the conductor indicates printed circuit, which
is included printed type resistors.
¢ The circuit shown in % on the conductor indicates printed circuit on the
back side of the printed circuit board.
© The symbols (@) indicate connection points between conductors on the front
side and back side of the circuit board.
¢ Values indicated in (——) are under no signal condition.
Unless otherwise specified, voltage measurement conditions are that tape
¢ This circuit board diagram may be modified at any time
with the development of new technology.
Cathode
Anode
DS
—
Cathode
Anode
CaO—4q—oa
Cathode Cathode
| Anode | Anode
Cao—_}fq—oa Cao—_fq—oa
D6
D7—10
D11,
12
travel is at STOP, tape mode at NORMAL, and Dolby NR switch at OFF.
—5—

Technics RS-M206 Specifications

General

Brand	Technics
Model	RS-M206
Category	Cassette Player
Language	English