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Service
Front-Loading VerticalHold StereoCassetteDeckwith
2-Color FL Bar Graph PeakMeters, FG Servo DC Motor,
DOLBY
SYSTEM
RS-631
MECHANISM
Specifications
(Catalogspecificationsfor sales)
AC; 110/125/220/240V,
Power requirement.
Preset power voltge; 220 V
240 V, 50Hz onlyfor England
Power consumption:
13W
Motor :
FG servo DC motor
4-track 2-channel s tero recordingand playback
Track system.
4.8 cm/s (1-7/8 ips)
Tape speed
0050/0 (WRMS), ±0149'0 (DIN)
Wow and flutter:
Frequency response
Cr02 tape;
Normal tape; 25— 14,000 Hz
Dolby'NRin; 67dB (above5kHz)
Signal-to-noiseratio
Dolby NR out; 57 dB
(signallevel= max.recordinglevel,
FeCr/Cr02type tape)
Technics
HPF Head,and Memory Auto-Play
SERIES
50/60Hz
25 — 16,000 Hz
30-15,000Hz
(DIN)
±3dB
30-13,000Hz
(DIN)
40-12,000Hz
±3dB
Specifications are subjectto changewithoutnotice.
• 'Dolby'and the double-Dsymbolaretrademarks of Dolby Laboratories.
Manual
This
following
Fast forward
and
rewindtime: Approx.90 secondswith C-60 cassettetape
MIC, sensitivity0.25mV, input impedance7.2 KQ
Input.
applicable microphone impedance 400Q—10 KQ
LINE; sensitivity60 mV,input impedance 47 KQ
LINE; output level650mV, output impedance
Output
2.2 KQ or less, load impedance 22 KQ over
HEADPHONE,output levelIOOmV,load
impedance 8Q
5 P DINtype,inputsensitivity 0.21mV,impedance
Rec/pb connection:
5.7 KQ,output level650mV, impedance 6 KQ
83 kHz
Bias frequency
2-head system
Head
I-HPF headfor record/playback
I-double-gapferrite headfor erasure
43 cm(W)x 14 2cm(H) x 26 7 cm(D)
Dimensions :
7.1kg (15 lbs 11 oz)
Weight:
Matsushita
ORDER
NO. ARD.7812088C
Cassette
RS-M33
is
the
Service
Manual
for
areas.
• For All European areas except
United Kingdom
• For United Kingdom.
• For Asia, Latin America,
Middle
East
and Africa
• For Australia.
Electric Trading Co., Ltd.
P.o. Box 288, Central Osaka Japan
Deck
the
areas.
loading

Inhaltszusammenfassung für Technics RS-M33

  • Seite 1 ORDER NO. ARD.7812088C Service Manual Cassette Deck RS-M33 Front-Loading VerticalHold StereoCassetteDeckwith 2-Color FL Bar Graph PeakMeters, FG Servo DC Motor, HPF Head,and Memory Auto-Play DOLBY SYSTEM This Service Manual following areas. • For All European areas except United Kingdom • For United Kingdom.
  • Seite 2 ORDER NO. ARD.7812088C Service Manual Cassette Deck RS-M33 Front-LoadingVertical Hold Stereo Cassette Deck with 2-CoIor FL Bar Graph Peak Meters,FG Servo DC Motor, HPF Head, and Memory Auto-Play DOLBY SYSTEM This IS the Serwce Manual following areas. For All European areas except United Kingdom.
  • Seite 3 RS-M33 LOCATION CONTROLS COMPONENTS Fig. Power switch @ Eject button Headphonesjack Timerstand-bybutton 0b Dolbynoise-reduction s witch Cassette holder Tape counter and reset button SJ Inputselector Recordingindication lamp $9 Bias selector Fluorescent level meters $9) Equalization selector (t) Meterbrightness-adjustment control Output-level control...
  • Seite 4: Front Panel

    RS-M33 DISASSEMBLY INSTRUCTIONS Fig. 4 Fig. Fig. 2 Fig. Fig. Fig. 8 Fig. Shown in fig Remove To remove Procedure • 6 black screws Case cover • 6 screws • Bottom cover • 2 control knobs • Cassette Front panel •...
  • Seite 5: Adjustment

    RS-M33 MEASUREMENT ADJUSTMENT METHOD NOTE: 1. Make sure heads are clean. Bias selector: LOW. 6. Equalizerselector:120gS. 2. Make sure capstan and pressure roller are clean. 3. Judgeable r oomtemperature: 20±50C (68±90F) 7. Inputselector:LINE 4. DolbyNR switch: OUT. MEASUREMENT & ADJUSTMENT...
  • Seite 6 RS-M33 REMARKS MEASUREMENT & ADJUSTMENT ITEM 2. Play test tape (QZZCWAT 3,000 Hz), andsupply playbacksignalto frequency counter. 3. Measurethis frequency. 4 Onthe basisof 3,000 Hz,determinevalueby followingformula 3,000 Tape speed accuracy = x 100 (96) 3,000 where, f = measured value 5.
  • Seite 7 RS-M33 ITEM MEASUREMENT & ADJUSTMENT REMARKS Playback frequency response chart ICÅHz 4kHz +30B _ +20B -2dB liHz Fig. 15 Adjustment method If the measuredvalueis not standard,adjustVRI (L•CH),VR2 (R-CH). Playback gain * Playback mode Test equipment connection is shown in fig. 11...
  • Seite 8 RS-M33 REMARKS MEASUREMENT & ADJUSTMENT ITEM * Record mode Test equipment connection is shown below. Bias current • When bias current R/ P head Equipment adjusted on one channel RS(L-CH) only, note that bias current • Oscilloscope on the other channel may vary.
  • Seite 9 RS-M33 REMARKS MEASUREMENT & ADJUSTMENT ITEM • Record/playback mode Testequipmentconnection is shownin fig. 19. Overall gain * Input level control Equipment * Output level control • AF oscillator R/P head 6000 • VTVM • Standard Input level: * ATT 0000 MIC •...
  • Seite 10 RS-M33 REMARKS MEASUREMENT & ADJUSTMENT ITEM A. AdjustVRI (L-CH) a ndVR8(R-CH) s othattheFluorescent meters "—20dB" when the input show an illuminated indication up to signallevelis 15.1dB lower thanthe standardinput level. B, Then confirm that the Fluorescent meters show an illuminated 15dB"...
  • Seite 11 RS-M33 REMARKS MEASUREMENT & ADJUSTMENT ITEM 9. Set the bias selector to Cr02 position. 10. Measure as same as manner above. 11 Make sure that the measured value is within the •range specified in the overall frequency response chart for Crop tape below.
  • Seite 12 RS-M33 RS-M33 ELECTRICAL PARTS LOCATION NOTE: that only parts specified manufacturer be used for sefety. Ref. Nc Part Nm Part Name & MEASUREMENT & ADJUSTMENT REMARKS ITEM ELECTRICAL PARTS WY456Z Reord/PlaybEk Head •For All En*n areas 'wyi422z Head •For Asia. Latin Anyica.
  • Seite 13 ERG. Metal-oxide ECKCI • (>amic • Metal•film ECCO Metal.film ECFO •• Ceramic •Fuse type ECQM •Polyster SCHEMATIC DIAGRAM MODEL RS-M33 ERC • • Solid ECQE. •Polyster •Polypropylene • • Cement ECQF ECEO Electrolytic ECEON •Non polar electrolytic ECQS. Polystyrene ECSO •...
  • Seite 14 RS-M33 RS-M33 CIRCUIT BOARD MAIN CIRCUIT BOARD 7.0V 03, oa 07. 08 as. 06 RECORD INDICATION 14.ov CIRCUIT BOARD MAIN CIRCUIT BOARD HEADPHONES CIRCUIT BOARD nrw• I.ov 6.6V METER CIRCUIT BOARD mnrrrrrtrtmmrrrrrrmmrr B 1 ssv E l.ssv NOTE: The circuit Shown in red on the conductor is B circuit.
  • Seite 15 RS-M33 RS-M33 CIRCUIT BOARD MAIN CIRCUIT BOARD RECORD INDICATION CIRCUIT BOARD MAIN CIRCUIT BOARD HEADPHONES CIRCUIT BOARD 4219 VSFi2 METER CIRCUIT BOARD JACK NOTE The circuit shown in red cn the conductor is a circuit. are DC voltages between the...
  • Seite 16 WIRING CONNECTION DIAGRAM MODEL RS-M33 *For Asia, Latin Arnerica, Middle East, POWER TRANSFORMER Africa Australia areas. AC POWER CORD POWER SWITCH POWER VOLTAGE SELECT SWITCH AC POWER VOLTAGE ECT SWITCH FUSE J7: HEADPHONES JACK RECORD INDICATOR AC POWER CORD POWER...
  • Seite 17 EXPLODED VIEWS €2 M36-1 M36-3 36-2 MI 7 M66-1 Ref. No. Part NO. Part Name & Ret.No. Part NO. Part Name & QDG109€ Cam Gear M 40 PARTS QXG1026 Auto.StopGearAssembly QML2898 Pause Lxk Plate "43 QXL1037 LeverAssembly QMK1612 Head Base Plate QML3042 Auto.Stop Lever...
  • Seite 18 RS-M33 RS-M33 Ref. No. Part Nc part Nat* Desctobon PARTS QGCI 1 04 Case Cove "Silve Ty*' CABINET PARTS QGCIIIO WC! 106 Bottorn Cow QKA1076 Foot QYP0831 FrontPanelAssenuy "Silve Type" QYP0831K "Black TY*" G4-1 QKJ0286 Stog« G4-2 XTS3+8B QYF0334 CassetteLidAssembly "Silve TY*"...
  • Seite 19 RS-M33 DEUTSCH Gegenstand Messung und Einstellung Gegenstand Messung Messungen und Einstellungen Vormagnetisierung Den Meßaufbau zeigt Fig. 17. Anm.: Schwankung Gerät auf "Aufnahme" und Bandwah MeBgerät: 3000 1. Für saubere Köpfe sorgen. Vormagnetisierungs-Schalter: niedrig. • Röhrenvoltmeter schalten. f, = Maximalwert 2. Für saubere Tonwelle und Andruckrolle sorgen.
  • Seite 20 Gegenstand Meseung und Einstellung Meseung und Einstellung Gegenstand Meseung Einstellung Den MeBaufbau zeigt Fig. 17. Gesamt-Frequenzgang Justierung auf " —20dB". Werden die mittleren und hohen Frequenzen gemäBder Gerät auf "Aufnahme" und Bandwahlschalter auf "Normal" VR7 (L-CH) und VR8 (R-CH) so abstimmen, daB die (Als Grundlage für den...
  • Seite 21 RS-M33 FRANCAIS SECTION MESURES ET REGLAGES SECTION MESURES ET RE MESURES ET REGLAGES NOTA: Eluctuations de vitesse de défilement Courant de prémagnétisation Branchez les appareils comme ci-d 1. Vérifiez que les tétes soiént propres. Sélecteur de Dolby: OUT. Placez l'appareil en position Faites Ies mesures de Ia méme facon que ci-dessus...
  • Seite 22 MESURES REGLAGES SECTION MESURES REGLAGES SECTION MESURES REGLAGES Rion Branchez Ies appareils comme ci-dessous. Réglage au ' -20dB". Courbe de réponse globale Lorsque la courbe de réponse dépasse le gabarit entre le Placez l'appareil en position enregistrement, le sélecteur de Régler VR7 (L-CH) et VR8 (R-CH) de telle facon å...
  • Seite 23 For additional information, please refer to the service manual for Model No. RS-M33 Notes: 1. This service manual indicates the main differences between; original RS-M330 and RS-M33 2. Please file this manual with the service manual for Model No. RS-M330 (original), order No.