Technics RSM 245 X Service Manual

Page 1

ORDER NO. AR083040232C8<18

Service Manual

Cassette Deck

db: -Equipped Microprocessor RS- M 245x

Controlled Cassette Deck (Silver Face)

Black Face

Dri-

This is the service Manual for the
following areas.

IE -------- For Asia, Latin America,
Middle East and Africa
areas.

-- For Australia.

For Asian PX.

For European PX.

RS-M245X in black is also available in some countries.

RS-M250 MECHANISM SERIES

Specifications
Track system: 4-track 2-channel stereo recording and Inputs: MIC; sensitivity 0.25mv applicable
playback microphone impedance 4009-10?
Tape speed: 4.8cm/s LINE; sensitivity 60mV, input impedance
Wow and flutter: 0.045% (WRMS) 47 kg or more
Frequency response: Metal tape; 20-20,000Hz OUIPIHS! LINE; output level 400mV, output
50-18,000Hz:3dB impedance 1.5k9 or less
. CrO2 tape; 20-19,000Hz HEADPHONES; output level 125mV
50-17,000Hz:3dB (at 89) applicable headphone
Normal tape; 20-18300 Hz impedance 89-6009
50-16,000 H213d8 Bias frequency: 80kHz
Dynamic range: none (at 1kHz) with db'x in Heads: 2-head system
Max. input level 1-AX (AMORPHOUS) head for record/
improvement: 10dB or more improved with dbx in playback
(at 1kHz) 1-doubIe-gap ferrite head for erasure
Signal~to-noise ratio: dbx in; 92dB Motor: 2-motor system
Dolfiy C NR in; 75118 (CCIR) Power requirements: AC; 110/1251220I24OV, 50-60 Hz
Dolby B NH in; 67dB (CCIR) Preset power voltage 240V
NFl out; 57dB Power consumption: ;16W
(Signal level =max. input level A _ IE; 22W
weighted, CrOZ type 'ape) Dimensions: 43cm(W)><9.80m(H)xz7.3cm(D)
Fast forward and We'thi 5-1 k9

rewind time: Approx. 90 seconds with 060 cassette
tape

Design and specifications are subject to change without notice.
*The term dbx is a registered trademark of dbx Inc.
alt *Dolby' and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

Panasonic Tokyo

.
I eChnlCS Matsushiu Electric Industrial 60., Ltd. Matsushita Electric Trading Co., Ltd.
1-2, i-chome. Snibakoen, Minato-ku, Tokyo 105 Japan P.0. Box 236. Central Osaka Japan

Page 2

RS-M245X

LOCATION OF CONTROLS AND COMPONENTS

® Pause Button and Indicator [pause ("u-w

,n l \.

® Record Button and- ,:c 1'59 .ec2u[e-© Record Muting Button
Indicator [rec (0)] 4 [rec mute (0)]

® Rewind/Review Button '--'ea;: 1/3?" "fie.- @ Fast Forward/Cue
[rew/rev (MS) (44)] » I _J (M 5' Button [ff/cue (MS)

(>>)]

(9 Counter Reset Button -c , ._

[counter reset] egg? 520 ® Stop Button [stop (I)]

® Play Button and Indicator [play (>)]

@ Power Switch -\ @ Cassette Holder 9 Digital Multi \ (I) Input Level Control [input level]
[power (push Counter
on)] [multi ® FL (fluorescent level) Meters
counter]
D Li__I_I 7
. I
@ 3:: Q © CI © ITI-Tj:
Switch E was, =,I::L _ 1:: 414
[atimer 7"" I" I 1 IxL-r-Lfir-m. 1] fl
(rec-oft I
plan]
@ Headphones _/ L® Balance Control
Jack [phones] [balance (left-
_ center-right
® Eject Button
[eject (AN LED Output Level Control
[output level]
0) Tape Indicator ; _
[Auto Tape Select (Normal-CrO,-Meta|)] @ Norse Reduction Select Switch
[Noise Reduction ( Dolb NR 0
B-out- tape-disc)]
@ Tape Counter Button [counter] 4 \~@ Music Repeat Button [music repeat]
Tape Remaining Time Display Button [time] - Fifi) Music Select Button [music select]

F-® Voltage Selector

0\D

PIE

\

® Microphone Jacks -/

[E (L-nn

® Line Input Jacks -J
[LINE IN (R~L)]

F-® Remote Control Connector
[REMOTE CONTROL]

FQ) Line Output Jacks [LINE OUT (R-L)]