Technics RS-M250 Service Manual

ORDER NO..ARD-8007079C
Service Manual
Microprocessor-Controlled Stereo Cassette Deck
with Electronic Digital Tape Counter
OO [covsy system
RS-M250 MECHANISM SERIES
Specifications
Track system: 4-track 2-channel stereo recording and playback
Tape speed: 4.8cm/s
Wow and flutter: 0.04% (WRMS), 0.13% (DIN)
Frequency response: Metal tape; 20— 20,000 Hz
30— 18,000 Hz (DIN)
30—17,000Hz +3dB
CrO2/Fe-Cr tape; 20 — 18,000 Hz
30— 18,000 Hz (DIN)
30—16,000Hz +3dB
Normal tape; 20—17,000Hz
30— 16,000 Hz (DIN)
30—15,000Hz +3dB
Signal-to-noise ratio; Dolby NR in; 67 dB (above 5 kHz)
Dolby NR out; 57 dB (Signal level = max. record-
ing level, Fe-Cr/CrO2 type tape)
Fast forward and
rewind time: Approx. 80 seconds with C-60 cassette tape .
Inputs: MIC; sensitivity 0.25 mV, input impedance 50kQ
applicable microphone impedance 4002—10 kQ
LINE: sensitivity 60 mV, input impedance 47kQ
Outputs:
Rec/pb connection:
Bias frequency :
Motor:
Heads:
Power requirement:
Power consumption:
Remote:
Dimensions:
Weight:
Specifications are subject to change without notice.
* 'Dolby' and the double-D symbol are trademarks of Dolby Laboratories.
Technics
Cassette Deck
RS-M250
eae ee
Black Face
This is the Service Manual for the
following areas.
For all European areas
except United Kingdom.
For United Kingdom.
LINE; output level 700 mV, output impedance 3 kQ
or less, load impedance 22kQ over
HEADPHONE ; output level 85 mV (at 8Q), load
impedance 8— 1252
5 pin DIN type;
input sensitivity 0.25 mV, input impedance 6.8 kQ
output level 700 mV, output impedance 4.7kQ
85 kHz
2-motor system;
1-Electrical DC governor motor, 1-DC motor
2-head system;
SX head for record/playback
Ferrite double-gap head for erasure
AC; 110/125/220/240 V, 50-60 Hz
20W
For PLAY/REC/FF/REW/PAUSE /REC-MUTE/
STOP with optional remote control RP-9645
43.0cm(W) X 11.9cem(H) x 29.3cm(D)
5.3kg
Matsushita Electric Trading Co., Ltd.
P.O. Box 288, Central Osaka Japan.