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Technics RS-M206

Technics RS-M206
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ORDER
NO.
ARD82040138A8-04
Service
Manual
Cassette
Deck
Soft-Touch,
Metal
Compatible
Cassette
Deck
RS-M206
DO
[eacevaveren]
Galion
Silver
Face
|
This
is
the
Service
Manual
for
the
|
|
following
areas.
[D]
----++-+
For
all
European
areas.
settee
ee
For
Asia,
Latin
America,
Middle
East
and
Africa
|
areas.
)
[A
-----
5
For
Australia.
e
Please
use
this
manual
together
with
the
service
manual
for
model
No.
RS-M216
(original)
order
No.
ARD82040133C8-11.
¢
For
schematic
diagrams,
circuit
boards,
wiring
connection
diagram
and
parts
lists,
refer
to
the
ones
in
this
Service
Manual.
For
other
information,
refer
to
both
this
Service
Manual
and
the
original
Service
Manual.
RS-M24
MECHANISM
SERIES
Specifications
Track
system
4-track
2-channel
stereo
recording
and
playback
Inputs:
MIC:
sensitivity
0.25
mV,
applicable
microphone
Motor
Electrical
governor
motor
impedance
4002—
10
kQ
Tape
speed:
48cm/s
LINE
;
sensitivity
60
mV,
input
impedance
more
than
40kQ
fe)
ec)
#149
Wow
one
aIuttet
BOS
ZotWinMe),
SO
Lao
501
Outputs:
LINE;
output
level
400
mV,
output
impedance
Frequency
response:
Metal
tape:
20
-
17.000Hz
Tekin
lees
7
40
~
16,000Hz
(DIN)
HEADPHONES:
output
level
80
mV
(82)
CrO.
tape:
20
16.000H2z
applicable
headphone
impedance
8Q2—
6002
40
-.
15,000Hz
(DIN)
Bias
frequency:
80kHz
ormal
tape:
20
~
15,000
Hz
Heads
:
2-head
system
40-~
14.000Hz
(DIN)
:
ie
ee
:
ee
coe
*
ouble-gap
ferrite
head
for
erasure
Signal-to-noise
ratio
ae
is
eet
5
kHz)
Power
vequiremeate?
(Dl
SAG
250'V-
50°60
Fe
oes
[N}
--
AC
110/125/220/240V,
50-60Hz
(signal
level
max.
input
level
A
weighted.
CrO
A]
---
AC
240
V,
50-60Hz
type
tape)
Power
consumption:
10
W
Fast
forward
and
Dimensions:
43
cm(W)
x
10.9cm(H)
x
23.3cm(D)
rewind
time:
Approx.
90
seconds
with
C-60
cassette
tape
Weight:
40kg
Specifications
are
subject
to
change
without
notice
*
‘Dolby’
and
the
double-D
symbol
are
trademarks
of
Dolby
Laboratories.
‘Technics
Matsushita
Electric
Trading
Co.,
Ltd.
P.O.
Box
288,
Central
Osaka
Japan
ELECTRICAL
PARTS
LOCATION
(DIFFERENCE)
E38
E37
IN;
£33617—-¢
POWER
SUPPLY
[Il
£33E17—-—
POWER
SUPPLY
ie
17¥
circuit
BOARD
a
0
cincuiT
BOARD
|
!
|
|
|
|
|
|
|
wi,
|
:
|
Dlr
For
all
European
areas.
eee
|
[NJ--
ee
For
Asia,
Latin
America,
-
E84
|
EE
|
Middle
East
and
Africa
areas.
seteee
ees
For
Australia.
CABINET
PARTS
LOCATION
(DIFFERENCE)
-—,
is
me
4e
//
REC
LED
Backs
LEVEL
METER!
o
BOARD
7
REC
LED
CIRCUIT
:
é
7
BOARD
SS
RS-M216
RS-M206
Question and Answer IconNeed help?

Do you have a question about the Technics RS-M206 and is the answer not in the manual?

Technics RS-M206 Specifications

General IconGeneral
Track System4-track, 2-channel stereo
Tape Speed4.8 cm/s
MotorDC Servo Motor
TypeCassette Deck
Tape TypeType I, CrO2, Metal
Dimensions430 x 119 x 231 mm
Wow and Flutter0.07% WRMS

Summary

Electrical Parts Location

Technical Specifications

Schematic Diagram

Specifications Summary

Summarizes key performance metrics like S/N ratio and frequency response for different tape types.

Important Notes on Schematics

Clarifies symbols, conditions, and measurement standards used in the schematic diagrams.

Circuit Board and Wiring Diagrams

Wiring Diagram Notes and Symbols

Explains wire colors, circuit board symbols, and measurement conditions for wiring diagrams.

Component Terminations

Details terminations for various components like transistors, ICs, and diodes.

Replacement Parts List

Resistors, Coils, and Capacitors

Lists part numbers for resistors, coils, capacitors, and related components.

Transistors, Diodes, and ICs

Details integrated circuits, transistors, diodes, and rectifiers with their part numbers.

Mechanical Components and Accessories

Covers mechanical parts, switches, jacks, accessories, and packing materials for replacement.

Parts Change Notice

Interchangeability Codes Explained

Explains interchangeability codes (A, B, C, D, E) for parts based on production set.

Measurements and Adjustments (German)

Tape Speed Fluctuation Measurement

Measures and adjusts tape speed fluctuation using test tapes and a frequency counter.

Head Azimuth Adjustment

Adjusts the head azimuth for optimal contact between head and tape during playback.

Output Balance Adjustment

Adjusts output balance between left and right channels for optimal stereo reproduction.

Phase Adjustment

Adjusts phase alignment between left and right channels for optimal audio signal.

Tape Speed Accuracy

Measures tape speed accuracy using a test tape and frequency counter.

Playback Frequency Response

Measures and adjusts playback frequency response using test tapes and an oscilloscope.

Playback Gain Adjustment

Adjusts playback gain for correct output levels across different frequencies.

Erase Current Adjustment

Measures and adjusts erase current for proper tape erasure during recording.

Overall Frequency Response (RecordPlayback)

Adjusts the overall frequency response for both recording and playback.

Measurements and Adjustments (German - Cont.)

Bias Current Adjustment for Frequency Response

Adjusts bias current to achieve the specified overall frequency response for different tape types.

Overall Gain Adjustment

Adjusts overall gain for recording and playback across various input levels.

Level Indicator Calibration

Calibrates the level indicator to accurately display signal levels during recording and playback.

Dolby Circuit Adjustment

Adjusts the Dolby noise reduction circuit for optimal performance.

Measurements and Adjustments (French)

Tape Speed Fluctuation Measurement (FR)

Measures and adjusts tape speed fluctuation using test tapes and a frequency counter.

Head Position Adjustment (FR)

Adjusts the head position plate for proper tape-head contact during cue and review.

Head Azimuth Adjustment (FR)

Adjusts head azimuth for optimal contact between head and tape during playback.

Phase Adjustment (FR)

Adjusts phase alignment between left and right channels for optimal audio signal.

Tape Speed Precision (FR)

Measures tape speed precision using a test tape and frequency counter.

Playback Frequency Response (FR)

Measures and adjusts playback frequency response using test tapes and an oscilloscope.

Playback Gain Adjustment (FR)

Adjusts playback gain for correct output levels across different frequencies.

Erase Current Adjustment (FR)

Measures and adjusts erase current for proper tape erasure during recording.

Measurements and Adjustments (French - Cont.)

Overall Frequency Response Adjustment (FR)

Adjusts overall frequency response for recording/playback via bias current.

Overall Gain Adjustment (FR)

Adjusts overall gain for recording and playback across various input levels.

Level Indicator Calibration (FR)

Calibrates the level indicator to accurately display signal levels during recording and playback.

Dolby Circuit Adjustment (FR)

Adjusts the Dolby noise reduction circuit for optimal performance.

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