Technics RSM 229 X service Manual

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ORDER NO. ARD830602400641

Service Manual

Cassette Deck

dbx/Dolby NR-Equipped RS' M 229x

Stereo Cassette Deck (Silver Face)
Black Face

DC DOLBY SfiYéTEMJ

ThisisitheiService Manual for the
following areas.

m --------- For all European areas
except United Kingdom.

[5] -------- For United Kingdom.

[E --------- For Asian PX.

[I ------- For European PX.

RS-M229X in black is also available in some countries.

RS-M24 M ECHANISM SERIES

Specifications
Track system: 4-track 2-channel stereo recording and rust IUIWdlu and
playback rewind time: Approx. 90 seconds with 0-60 cassette
Tape speed: 4.8cm/s tape
Wow andflutter: D B ...0.05% (WRMS), i0.14°/o (DIN) Inputs: MIC; sensitivity 0.25mV applicable
F J ...0.048°/o ONRMS) microphone impedance 4OOQ-10kQ
Frequency response: Metal tape; D B .. 20-17,000 Hz LINE; sensitivity 60mV input impedance
25-16,000 Hz (DIN) 47kQ or more
(SO-15,000 Hz:3dB Outputs: LINE; output level 400 mV, output
F J ...20-18,000 Hz impedance 2.3kQ or less
CrO2 tape; D B .. 20-16,000 Hz HEADPHONES; output level 80mV
25-15,000 Hz (DIN) (at 89) applicable headphone
30-14,000 Hzx3dB impedance 89-60092
F J ...20-18,000 Hz Bias frequency: 80kHz
Normal tape; D B .. 20-15,000Hz Heads: 2-head system
25-14,000 Hz (DIN) 1-MX head for record/playback
30-13,000 Hz:3dB 1-double-gap ferrite head for erasure
F J ...20-17,000 Hz Motor: 1-motor system
Dynamic range: 110dB (at 1kHz) with dbx in (Electrical governor motor)
Max. input level Power requirements: D ......... AC; 220V, 50-60Hz
improvement: 10dB or more improved with dbx in B F J ...AC; 110/125/220/240V, 50-60 Hz
(at 1kHz) B ......... Pre-set power voltage 240V
Signal-to-noise ratio: dbx in; 92dB F ......... Pre-set power voltage 125V
Dolby B NR in; o e ...66dB (CCIR) J ......... Pre-set power voltage 220v
F J ...67dB (CCIR) Power consumption: 12W
NR out; 57dB Dimensions: 43cm(W)X10.90m(H)><23.3cm(D)
(Signal level = max. input level A Weight: 4kg

weighted, CrO2 type tape)

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

Panasonic Tokyo

0
Technlcs Matsushlta Electric Industrial Co., Ltd. Matsushlta Electric Trading Co., Ltd.
1-2, 1-chome. Shibakoen, Minatoku, Tokyo 105 Japan PO. Box 288. Central Osaka Japan

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RS-M229X

CONTENTS

lTEM
- Locatlon of Controls and Components ....................................................
- Disassembly Instructions
0 Operating Precautions ........................................................................................... 4
0 Measurement and Adjustment Methods ..................................................................... 5

- Block Diagram ...............................
- Schematic Diagram .........................
0 Circuit Boards and Wiring Connection Diagram
0 Electrical Parts List ....................................

. Mechanical Parts Location (with Parts List) ............................. . 19
0 Cabinet Parts Location (with Cabinet, Accessoryand Packing Parts List) .............................. 21
F7 V 77 i (:3- fl/ 1 )l
- Fast Forward/Cue Button [ cue b b
(I) RewindIReview Button
i [row/rev (4 4 )l E@ Counter Reset Button
[counter reset]
W i
@Piay Button [play-:9 (>)}-E- . t_ o :i-@Record Button
[record-E (0)]
l
@Stop Button [stop (IN-E :- 3-®Pause Button
[pause (ll)[
Elli} Tape Counter GE "wording
[tape counterfl Indicator [rec]
.Eifid Button (303556! Q? Noise Reduction Select Switch
' \/
[91th l Home, [Noise Reduction (Dolby NR - out - .n
® FL (fluorescent level) Meters
l
(-GDlnput Level
a . Controls [input
l5 Power Switch ~
\_/
[power (push '11] [ 81:19) [Q1 Ii 1 level (L 3-H
°"" 1 (jet-:3: fl @3316;
o _ 43:; a at 0
;413113;» Selector [tape select
@Headphones _J (Normal - ero, - Metal):
Jack [phones] 7
{Lil Input SOIOC'OF F) 3/9 Microphone Jacks
[input select (1 line ' a- mic» [mic (lelt - right)!

j '3 @ Voltage Selector

i * Ell. ...... For United
Kingdom and PX.

\-® Line Output Jacks [LINE our in - L)l
L-~® Line Input Jacks [LINE IN (a . L)]

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