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Sharp RT-W500H Service Manual

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Noise reduction system manufactured under license from Dolby Labora-
l
tories Licensing Corporation. " Dolby" and the double-D symbol are trade-
marks of Dolby Laboratories Licensing Corporation.
l
censing Corporaton hergestellt. Das Wort " Dolby" und das Symbol des
doppelten D sind die Warenzeichen von dolby Laboratories Licensing Cor-
poration.
l
ratories Licensing Corporation. Le mot " Dolby" et le symbole double D
sont des marques deposees des Dolby Laboratories Licen.$ng Corporatio-
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
NAMES OF PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . L-4
DISASSEMBLY.. ..................................................
BLOCK DIAGRAM ...................................................
CIRCUIT ADJUSTMENT.. ..................................... 8, 9
MECHANICAL ADJUSTMENT ........................... 10, 11
NOTES ON SCHEMATIC DIAGRAM.. ....................... 12
DER TEILE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4
BLOCKSCHALTPLAN ...............................................
NOMENCLATURE.. ............................................. 2 - 4
5, 6
7
Seite
5, 6
7
................................ 8, 9
Page
5, 6
In the interests of user-safety the set should be restored to its ori-
l
ginal condition and only parts identical to those specified be used.
.
D a n s I' interdt de la securite de I' utilisateur, I' appareil devra 6tre
l
q u e s a celles specifiees, doivent dtre utilisees.
WIRING SIDE OF P.W.BOARD . . . . . . . . . . . . . . .._.......... 13, 14
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15. 16
DIAGRAM) OF IC ............................................... 17
TYPES OF TRANSISTOR AND LED.. ........................ 17
EXPLODED VIEW ............................................ 18, 19
REPLACEMENT PARTS LIST.. .......................... 20-24
ERSATZTEILLISTE .......................................... 20-24
DE MONTAGE IMPRIME.. .............................. 13, 14
TYPES DE TRANSISTOR ET LED.. ........................... 17
Page
Seite
17
17
........................... 18, 19
Page

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  Summary of Contents for Sharp RT-W500H

  • Page 1: Table Of Contents

    Noise reduction system manufactured under license from Dolby Labora- In the interests of user-safety the set should be restored to its ori- tories Licensing Corporation. “ Dolby” and the double-D symbol are trade- ginal condition and only parts identical to those specified be used. marks of Dolby Laboratories Licensing Corporation.
  • Page 2: Specifications

    FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. Power source: AC 220 V 50/60 Hz S/N ratio (MAXELL UDXL II tape): Power consumption: 11 w Dolby NR off; 52 dB Semiconductors: 6 ICs Dolby NR effect;...
  • Page 3 DER BEDIENUNG DIESES GERATES IST IN DER BEDIENUNGSANLEITUNG ENTHALTEN. Rauschabstand (MAXELL UDXL II -Band): Netzspannung 220 V 50/60 Hz Spannungsversorgung: Dolby-NR ausgeschaltet; 52 dB Leistungsaufnahme: Dolby-NR-Effekt; 10 dB lbei uber 6 integrierte Schaltkreise 5 kHz) 30 Transistoren Eingangsempfindiichkeit und impedanz: 22 Dioden Mikrofoneingang;...
  • Page 4 Vorsichtsmassregeln Fiir Das Zerlegen Beim Zerlegen und Zusammenbauen des GerMes die folgen- Lors du demontage de I’ appareil et de son remontage, sui- den Anweisungen befolgen, urn dessen Betriebssicherheit vre les pr6cautions ci-dessous, pour maintenir la s6curit6 et d’ excellentes performances. und ausgezeichnete Leistung aufrechtzuerhalten.
  • Page 5: Disassembly

    Caution on Disassembly Follow the below-mentioned notes when disassembling the 43 x unit and reassembling it, to keep its safety and excellent performance: 1. Take cassette tape out of the cassette holder. 2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.
  • Page 6 POUR LA DESCRIPTION COMPLETE DU FONCTIONNEMENT DE CET APPAREIL, SE REPORTER AU MODE D’ EMPLOI. Rapport S/B: (bande MAXELL UDXL II ) Alimentation: 220 V CA, 50/60 Hz Dolby NR hors circuit; 52 dB Consommation: 11 w Effet Dolby NR; 10 dB Semi-conducteurs: 6 Cl 30 transistors...
  • Page 7: Block Diagram

    Figure 7 BLOCK DIAGRAM...
  • Page 8: Circuit Adjustment

    SETTING Dolby NR Switch: off Frequency POSITION Dubbing Speed Selector Switch: Normal Counter OF SWITCH Deck 1 Tape Selector Switch: Normal AND KNOB Deck 2 Tape Selector Switch: Normal Dubbing Source Selector Switch: Line ITEM INPUT ADJUST- REMARKS (CHECK1 MENT Figure 8- 1 BIAS OSCILLATOR FREQUENCY POINTS Erase...
  • Page 9 .A POSITION UND STELLER- BEMERKUNGEN BENNENNUNG Ligne ARTICLE REMARQUES V R 3 0 1 36 f4V V R 1 0 4 DECK 1 3ande d’ essai elektronische DECK 2 481 mV bis 606 mV se situe entre 481 mV die Nachsteilung Jnbespieltes 1.
  • Page 10: Mechanical Adjustment

    Dual-trace ITEM USING JIG ADJUSTMEN REMARKS Electronic Oscilloscope POINTS Tape tention (More than 140 g) measuring cassette TW-2412 Torque meter (Play: 30-60 g-cm1 Play (Fast-forward: TW-2111 55-l 10 g - c m ) Fast-forward (Rewind: TW-2231 Head Rewind TW-2231 Figure IO- 1 AZIMUTH Small as Possible Test tape Sine waveform...
  • Page 11: Mechanismuseinstellung

    EINSTELL-PUNKT BEMERKUNGEN ARTICLE POINTS DE REMARQUES NUNG SLEHRE Cassette de (Plus de 140 g) kraft TW-2412 tension de la bande TW-2412 moment 30 - 60 g-cm) Wiedergabe: Compteur de (Lecture: TW-2111 55 - 110 g-cm) couple 30 A 60 g-cm) Schnellvorlauf: Lecture: TW-2231...
  • Page 12: Notes On Schematic Diagram

    . Resistor: The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chas- To differentiate the units of resistors, such symbol as K and sis with no signal given. bol M means 1000 kohm and the resistor without any sym- bol is ohm-type resistor.
  • Page 13: Verdrahtungsseite Der Leiterplatte

    0609 L E D RECORD LEVEL CONTROL PWB-A4 Figure 13 WIRING SIDE...
  • Page 14 POWER TRANSFORMER...
  • Page 15: Schematischer Schaltplan

    0 3 0 1 . 0 3 0 2 2SC1214 C BIAS OSC. 0401 .9402 2SA4933 SR DUBBING SPEED CONTROL NOTES ON SCHEMATIC DIAGRAM can be found on page 12. ANMERKUNGEN ZUM SCHEMATISCHEN SCHALTPLAN stehen auf Seite 12. REMARQUES CONCERNANT LE DIAGRAMME SCHEMATIQUE sont indiqukes & la page 12. Figure 15 sCHEMATI...
  • Page 16: Schematic Diagram

    0 1 0 4 2sc1740 SR POWER SW - 1 6 -...
  • Page 17: Equivalent Circuit (Block Diagram) Of Ic

    Figure 17-l EQUIVALENT CIRCUIT (BLOCK DIAGRAM) OF IC SLH-56VCF (Red) E C B Figure 17- 2 TY,PES OF TRANSISTOR AND LED...
  • Page 19 ' 2 2 5 x 2 Figure 19 CABINET EXPLODED VIEW...
  • Page 20: Replacement Parts List

    REPLACEMENT ERSATZTEILLISTE LISTE DES PIiCES PARTS LIST DE RECHANGE “HOW TO ORDER REPLACEMENT “BESTELLEN VON ERSATZTEILEN” “COMMENT COMMANDER DES PARTS’ To have your order filled promptly and Pour voir votre commande executee de correctly, please furnish the following ausfuhren zu kiinnen, bitten wir urn die information.
  • Page 21 DESCRIPTION CODE PART NO. DESCRIPTION CODE PART NO. Belt, Main 94 RI 8211222 Fuse, T800 mA/250V Spring, Back Tension Felt Mat, Anti-Vibration Jack, Microphone Lever, Eject Slide Main Belt Motor Assembly Spring, Pack 94 R18211050 Motor Assembly Head, Playback, Deck 1 Head, Record/Playback, Switch, Slide Type...
  • Page 22 PART NO. DESCRIPTION CODE PART NO. DESCRIPTION CODE 560 ohms, 1/6W 3.3 kohms, 1/6W 1.5 kohms, 1/6W 12 ohms, 1/6W 680 ohms, 1/6W 470 kohms, 1/6W 22 kohms, 1/6W RI 36 1 kohm, 1/6W 33 kohms, 1/6W 82 kohms, 1/6W RI 38 82 ohms, 1/6W 2.7 kohms, 1/6W...
  • Page 23 CODE PART NO. DESCRIPTION V C T Y P A I EX472J .0.0047 pF, 25V Cl 28 4 7 pF, 1OV 0 . 0 0 2 2 pF, 2 5 V C l 5 2 1 0 0 pF, 1 6 V Cl 53 6 8 0 pF, 50V C l 3 2...
  • Page 24 L e a d w i t h L u g Operation Manual Screw, with Washer, $3 Label, Special Feature, Deck 1 Label, Special Feature, Deck 2 Writer and Editor: Quality & Reliability Control Center of Audio Systems Group, Sharp Corp. Printed in Japan In Japan gedruckt...

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