Technics RS-B205 Serviceanleitung
Verfügbare Sprachen
Verfügbare Sprachen
Service
Dolby B • C NR-Equipped
RS.D550W
MECHANISM
SPECIFICATIONS
Deck system
Track system
Heads
RECIPLAY
Erasing
Motor
Recording system
Bias frequency
Erasing system
Tape speed
Frequency response
Metal
cr02
Normal
SIN (Signat level-
recording
— max.
Dolby C NR in
Dolby B NR in
NR out
Technics
etereo
Cassette
SERIES
Stereo
cassette
deck
4-track, 2-channei
MX head
Double-gap ferrite head
I motor
system
AC
bias
50 kHz
AC bias
4.8cm/sec.
30 Hw15,
000 Hz (DIN)
30
(DIN)
30
(DIN)
level, Cr02 type tape)
72dB (CCIR)
66dB (COIR)
56dB (A weighted)
Manual
Deck
Wow
and
flutter
Fast
forward
Input sensitivity
MIC
LINE
DIN...[EGAI only
Output voltage and Impedance
LINE
HEADPHONES
Power consumption
Power supply
Dimensions
Weight
* Dolby noise reduction
Dolby Laboratories
"Dolby"
and the double-D symbol are trade marks of Dolby
Laboratories
Matsushita Electric Trading Co., Ltd.
ORDER
NO. HAD8602333C2
Cassette
RS-B205
Color
(K)...Black
(S)...Silver
Color
Areas
.AII European
areas
United Kingdom.
[EKI . . .....United
[EGAI
..F.R. Germany.
0.08% (WRMS)
and
rewind
time
Approx. 105 seconds with C-60 cassette tape
and impedance
0.25mV/400Q—10kQ
[E] [EGA]
AC 50Hz/60Hz
. AC 50Hz160Hz
(W x H x D)
manufactured
under license from
Licensing Corporation.
Licensing
Corporation.
P.O. Box 288, Central Osaka Japan
Deck
Type
Type
except
Kingdom.
(DIN)
60mV/47kQ
0.25mV/3.3kQ
400mV/3.2kQ
65mV/8Q
220V
240V
3.0kg
Inhaltsverzeichnis
Verwandte Anleitungen für Technics RS-B205
Inhaltszusammenfassung für Technics RS-B205
- Seite 1 ORDER NO. HAD8602333C2 Service Manual Cassette Deck Dolby B • C NR-Equipped RS-B205 etereo Cassette Deck Color (K)...Black Type (S)...Silver Type Color Areas .AII European areas except United Kingdom. [EKI ..United Kingdom. [EGAI ..F.R. Germany. RS.D550W MECHANISM SERIES...
- Seite 2 RS.B205 CONTENTS Page Page • Location of Control....• Printed Circuit 9, 10 • Operation ..............• Block Diagram 11, 12 • Disassembly Instructions ..... • Electrical Parts List ......• Measurement and Adjustment Methodes • Schematic Diagram....13—16 •...
- Seite 3 Cette brochure comprend les spécifications et les procedures de mises du Modéle RS-B205(NOd'order HAD8602333C2)écrites en allemand, en franqais et en espagnol. Classer cette brochure en méme temps qu'avec le manuel de service du Modåle RS-B205. Este librito incluye las especificaciones y procedinientos de Modelo RS-B205(Pedido NOHAD8602333C2) •...
- Seite 4 Testband • Kopfazimut-Justierung (8 kHz, —20dB); QZZCFM •Justierung der Bandgeschwindigkeit (3kHz, —IOdB); QZZCWAT •Wiedergabe-Frequenzgang (315Hz, 12,5kHz, 10kHz, 8kHz, 4kHz, 1 kHz, 250Hz, 125kHz, 63 Hz, —20dB); QZZCFM •Justierung des Wiedergabe•Verstärkungsgrades (315Hz, OdB); QZZCFM •Gesamtfrequenzgang, Gesamtverstärkungsgrad-Justierung • Normales Referenz•Leerband; QZZCRA • CrorReferenz-Leerband ;...
- Seite 5 RS.B205 RS.B205 DISASSEMBLY INSTRUCTIONS • OPERATION Recording Ref. No. Ref. to remove the mechanism unit to remove case cover Procedure 1 Power: "on" (A + A) 4 Select the noise.reduction system. Procedure 1. Push the eject button (see fig. 1). •...
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Seite 6: Adjustment
RS.B205 MEASUREMENT ADJUSTMENT METHODES Playback gain adjustment 1. Test equipment connection is shown in Fig. 4. 2. Playback the playback gain adjusted part (315Hz, OdB) of the test tape (QZZCFM). Main P.C.B. Tape speed 3. Adjust VRI, (L-CH) {VR2 (R-CH)) so that the output is within the standard. - Seite 7 RS-B205 Dolby NR circuit Test equipment connection is shown in Fig. 10. LINE IN Set a normal tape and apply 1 kHz signal in record pause mode. 600Q Adjust by attenuator so that the output between terminal 7 of 10401 (L.CH) {IC402 (R.CH)} and ground is 12.3mv.
- Seite 8 RS.B205 Ref. No. Ref. Part Part Value Ref. No. Part Value Value Ref. Part Value c 419, 420 ECQMIH473JZ 0.047 c 409, 410 ECQMIH224JZ 0.22 c 602 c 701, 702 ECEAIHU2R2 ECEAOJUIOI c 411, 412 ECEA50MR6BR 0.68 c 421, 422 ECQMIH224JZ c 703 ECKDI...
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Seite 9: Power Supply
RS.B205 • PRINTED CIRCUIT BOARDS POWER SUPPLY P.C.B. n MAINP.C.B. only DIN CONNECTOR only T 600 POWER TRANSFORMER R604 (EK)only POWER lilli METER P.C.B. D709 • TAPE SELECTOR/VOLUME P.C.B. P.C.B. TN)O TOMotor (tapeV/ MUTE Metal) TAPE SELECTOR 0301 Itape II/ cr02) Normal) (EGAÉ... -
Seite 10: Block Diagram
RS.B205 RS.B205 BLOCK DIAGRAM Dolby NR Dolby S800 S801 VR201 LINE IN Dolby DolbyNR Balance Line Sl-3 Control Sl-l VR200 Line IC401 Input Control Dolby 16 + Play/ON B/C/OFF Gain Adj. Rec/PIay Rec H DIN JACK OFF/B/C ( EGA only) Mute Play/ IC401... -
Seite 11: Parts List
SCHEMATIC DIAGRAM ELECTRICAL PARTS LIST MAIN CIRCUIT SECTION Notes: 1. Part numbers are indicated on most mechanical parts. Notes: (This schematic diagram may be modified at any time with the develop- Please use this part number for parts order. st-3 Sl•2 ST-4 ment of new technolgy.) - Seite 12 RS.B205 m VOLUME CIRCUITSECTION S801(001bY BICNRseecw) (EGA ONLY) S800 Balance Control st-3 line 021, 2SJ103Y ANCE) PLAY/ON 01.2 2SA1309A IC401 PLAY/ON TEA0665 DOLBY LED METER CIRCUIT SECTION R811 Input Volume 2.2K C413 0_01 Control 50V22 e VR2 AN7014K R415 IC700 0807 20K(B MA165...
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Seite 13: Parts Location
RS.B205 RS.B205 MECHANICAL PARTS LOCATION CABINET NOTES: • When changing mechanism parts. apply the specified grease to the are marked " x x" shown in the drawing "Mechanical Parts Location". Ref. Part Name Part ROCOL PASTE RZZOL06 FLOIL G-488M SZZOL28 0134 FLOIL 947P... - Seite 14 RS.B205 RS.B205 CABINET PARTS LOCATION Notes: Part numbers are indicated on most mechanical parts. Please use this part number for parts order. Important safety notice: Components identified by mark have special charac- teristics important for safety. When replacing any of these components, use only manufac- Power Supply P.C.B.
- Seite 15 Justierung des Vormagnetisierungsstroms Der Testaufbau ist in Abb. 6 gezeigt. Den Bandsorten-Wahlschalter in die "Normal"-position einstellen. Eine Normalband-Cassette einsetzen. (TP2) Die Aufnahmetaste und die Pausentaste drücken. Den Eingangspegelregler auf Minimum einstellen und den Drehwiders- Erdund tand (linker Kanal) {Drehwiderstand (rechter Kanal)} Osziltoskop einstellen,...
- Seite 16 Dolby•Rauschunterdrückungs•Schaltkreis 1. Der Testaufbau ist in Abb 10 gezeigt. 2. Eine Normalband-Cassette einsetzen LINE IN Aufnahmepause-Zustand des Gerätes ein 5kHz-Signal Dämpiungs- eingeben. Widerstand 3. Mit dem Dämpfungswiderstand so justieren, daß die Ausgangsleistung zwischen AnschluB IC401 Audiofrequenz (linker kanal) {IC402 (rechter Kanal)} und Masse 12.3mV 600Q -Oszillator Erdund...
- Seite 17 Appareils de mesurage • Voltmétre électronique .A.T.T. (Atténuateur) Réglage du courant de polarisation • Oscilloscope • voltmétre å C.C. Le raccordement de l'équipement d'essai est montré å la Fig. 6. • Compteur de fréquence numérique • Résistance (6000) Régler le commutateur sélecteur de bande sur la position normale.
- Seite 18 Instrumento de mediciön Circuit de réduction des bruits Dolby • EVM (Voltimetro electrönico) •ATT (Atenuador) • Osciloscopio 1. Le raccordement de L'équipement d'essai est montré å • Voltimetro • Frecuencimetro digital • Resistor (6000) la Fig. 10. •Oscilador Entree de I 2.
- Seite 19 Ajuste de corriente de polarizaciön La conexiön del equipo de prueba se muestra en la Fig. 6. Poner eI interruptor selector de cinta en Ia posiciån "normal". Insertar la cinta metålica. (TP2) Apretar los botones de grabaciån y pausa. Tierra Minimizar el control de nivel de entrada...
- Seite 20 Circuito RR Dolby 1. La conexiön del equipo de prueba se muestra en la Entrada de iine Fig. 10. 600Q 2. Colocar una cinta normal y aplicar serial 5kHz en la Tierra modalidad de pausa de grabaciön. 3. Ajustar mediante atenudador de manera que la salida...