Technics RSM 6 Service Manual

Page 1

ORDER NO. ARD-7908060C

Service Manual

Front-Loading Vertical Hold Stereo Cassette Deck
with Full Auto-Stop Mechanism and Dolby NR

m DOLBY SYSTEM

IRS-631 MECHANISM SERIES

Specifications

Power requirement:

Power consumption:
Motor:

Track system-

Tape speed:

Wow and flutter:
Frequency response:

Signal-to-noise ratio:

AC, 110/220 V, 50-60Hz
for All European areas except United Kingdom
AC; 110/125/220/240V. 50-60Hz
for Asia, Latin America, Middle East and Africa
areas
AC; 240V, 5060 Hz
for Australia
9 W
Electronic control DC motor
4-track 2»channel stereo recording and playback
48 cm/s
0 08% (WRMS). :0 20% (DIN)

CrOz/Fe-Cr tape; 30 15,000 Hz
30 ~ 14,000 Hz (DIN)
Normal tape; 30-14,000HZ

3O - 13,000 Hz (DIN)
Dolby NR in; 66dl3 (above 5kHz)
Dolby NR out; 56dB (Signal level=max. record»
ing level. FeCr/CrOz type tape)

Fast forward and

rewind time:

Inputs:

Outputs.

Rec/pb connection:

Bias trequency:
Heads:

Dimensions:
Weight'

Specifications are subject to change without notice,
- 'Dolby' and the doublerD symbol are trademarks of Dolby Laboratories,

Technics

Cassette Deck

RS-MG

(Silver Type)

Black Type
This is the Service Manual for the
following areas.
[El-n For All European areas
except United Kingdom.
El --------- For Asia, Latin America.
Middle East and Africa
areas.
[El -------- For Australia.

Approx. 86 seconds with 060 cassette tape
MIC; sensitivity 0.25mV. input impedance 33 k0
over applicable microphone impedance 600 $2 -
10kQ
LINE; sensitivity 60 mV, input impedance 47 k9
LlNE; output level 420mV, output impedance
1 SkSZ or less, load impedance 22 k9 over
HEADPHONE; output level 60 mV, load impedance
8 $2
5 P DIN type;
input sensitivity 0.25 mV, impedance 8.2m
output level 420 mV, impedance 5.0 kg
83 kHz
Zhead system;
1»supper permalloy head for record/playback
1»double»gap ferrite head for erasure
41.0cm(W) X 14.2cm(H) >< 20.5cm(D)
3.8 kg

Matsushita Electric Trading 00., Ltd.

PD. Box 288. Central Osaka Japan

Page 2

LOCATION OF CONTROLS

M

AND COMPONENTS

® Power swltch (power)

(2) Cassette holder

© Tape counter and Reset button (tape counter)
© VU meter: (lelt-level-right)

® Recordlnn Indlcetlon lamp (rec)

(g) Pause button (pause) (II)

(3 Record button (record) (0)

® Play button (play) (N

Rewlnd button (raw) (4 4)

® Fast lorward button (If) (p b)

® stop button (stop) (I)

6) Elect button (eject) (A)

G; Microphone lacks (mic) (IeIt/right)

(9 Input selector (input select)

63 Dolby nolu-reductlon swltch (Dolby NR)
(3 Tape telector (tape select)

@ Input level control: (leIt/input level/right)
® Headphone; Jack (phones)

@ Llne Input cord (LINE IN)

Q Llne output cord (LINE OUT)

® Record/playback connection socket (REC/PLAY)
@ Voltage selector (VOLTAGE SELECTOR)

DISASSEMBLY INSTRUCTIONS

Fig. 2

(E) (G)

( F) (6 screws)

Fig. 5