Sharp WOQ-272H(R) - User Manual

WOQ-272H(R)
SHARP
SERVICE MANUAL /SERVICE-ANLEITUNG/ MANUEL DE SERVICE
PHOTO: WQ-272H(R)
Note for users in UK
Recording and playback of any material may require consent which
SHARP are unable to give. Please refer particularly to the provi-
sions of Copyright Act 1956, the Dramatic and Musical Performers
Protection Act 1958, the Performers Protection Acts 1963 and
1972 and to any subsequent statutory enactments and order.
S65B4WO-272HR
WOQ-272H(R)(W)(BK)
WOQ-272E(R)(W)(BK)
@in the interests of user-safety the set should be restored to its
orignal condition and only parts identical to those specified be
used.
@ Im Interesse der Benutzer-Sicherheit sollte dieses Gerat wieder auf
seinen ursprunglichen Zustand eingestellt und nur die vorge-
schriebenen Teile verwendet werden.
@ Dans I'intérét de la sécurité de I‘utilisateur, l'appareil devra étre
reconstitué dans sa condition premiére et seules des piéces
identiques a celles spécifiées, doivent étre utilisées.
INDEX TO CONTENTS
©) Page Page
SPECIFICATIONS ............. 000000 eee ee 2-4 NOTES ON SCHEMATIC DIAGRAM............. 16
NAMES-OF-PARTS:; 5 cee e-00 ern ereecbarae es 2-4 SCHEMATIC DIAGRAM ................05. 17, 18
BLOCK DIAGRAM.......... 0.0000 c eee eee 5 WIRING SIDE OF P.W. BOARD ............. 19-21
DISASSEMBLY .............0 000 eee ee cee 6,7 PACKING METHOD (WQ-272E ONLY)........... 22
VOLTAGE SELECTION (WQ-272H ONLY) ....... 6,7 EXPLODED VIEW... 0... cee eee 23, 24
MECHANICAL ADJUSTMENT................ 8,9 REPLACEMENT PARTS LIST ............5. 25—30
STRINGING OF DIALCORD............... 10, 11 AC POWER SUPPLY CORD.............00 0005 31
CIRCUIT ADJUSTMENT...............00. 10-15
INHALTSVERZEICHNIS
© Seite Seite
TECHNISCHE DATEN ...............020005 2-4 ANMERKUNGEN ZUM SCHEMATISCHEN
BEZEICHNUNG DERTEILE................. 2-4 SCHALTPLAS 5.4 arts ep dmasasaneace eaeens 16
BLOCKSCHALTPLAN........... 00000 e sees 5 SCHEMATISCHER SCHALTPLAN ........... 17, 18
ZERIGEGEN: oaiises heb wee ONT Aa as ie ORAS 6,7 VERDRAHTUNGSSEITE DER LEITERPLATTE. . 19-21
SPANNUNGSWAHL ( & NUR FUR WO-272H) ..... 6,7 EXPLOSIONSDARSTELLUNG.............. 23, 24
MECHANISMUSEINSTELLUNG............... 8, ERSATZTEILLISTE.. 2... ee es SE 25—30
SPANNEN DER SKALENSCHNUR........... 10, 11 NETZZULEITUNGSKABEL...............0005 31
SCHALTUNGSEINSTELLUNG.............. 10-15
TABLE DES MATIERES
© Page Page
CARACTERISTIQUES ................2.00. 2-4 REMARQUES CONCERNANT LE DIAGRAMME
NOMENCLATURE «ooo. ecw ene ee ee ees 2-4 SCHEMATIOUE, oUt seceeeeesecupeacreeres
DIAGRAMME SYNOPTIQUE................... 5 DIAGRAMME SCHEMATIQUE .............
DEMONTAGE vstccce a fps nce Teepe wn wed 6,7 COTE CABLAGE DE LA PLAQUETTE
SELECTION DE LA TENSION (WQ-272H SEULEM DE MONTAGE IMPRIME.................
END.
..
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10—15
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SHARP CORPORATION

Sharp WOQ-272H(R) Specifications

General

Track System	4-track, 2-channel stereo
Tape Speed	4.8 cm/s
Signal to Noise Ratio	58 dB
Signal-to-Noise Ratio (Dolby B On)	68 dB
Type	Cassette Deck
Wow and Flutter	0.08% (WRMS)
Power Source	AC 50/60 Hz
Power Consumption	14 W
Frequency Response (Metal Tape)	30Hz to 16kHz
Frequency Response (Normal Tape)	30 Hz - 14 kHz

Summary

General Specifications

Power Source and Output Specifications

Details power input options and output power levels for the unit.

Tape Recorder and Radio Specifications

Covers technical details for tape playback and radio reception frequencies.

Component and Physical Details

Lists semiconductors, dimensions, and weight of the device.

Parts Identification

Names of Parts Diagram

Identifies external components with numbered labels for easy reference.

Component Nomenclature

Provides detailed names for identified parts across multiple languages.

Disassembly and Voltage Selection

Disassembly Precautions and Steps

Safety guidelines and step-by-step instructions for unit disassembly.

Voltage Selection Procedure

Instructions for adjusting the unit's voltage setting for local power.

Mechanical Adjustments

Mechanical Adjustment Items and Test Tapes

Lists mechanical adjustment points and specifies test tapes for performance checks.

Torque Meter Measurements

Details torque measurements for tape drive mechanisms and tension.

Electrical Adjustments

Dial Cord Stringing Procedure

Instructions for routing and tensioning the dial cord for the tuning mechanism.

Audio Section Circuit Adjustment

Adjustments for bias frequency, erase current, and playback amplifier sensitivity.

Tuner Section Circuit Adjustment

Tuning adjustments for AM, LW, MW, and SW radio bands.

FM IF;RF and VCO Adjustment

Procedures for adjusting FM reception stages and VCO frequency.

Schematic Diagrams and Wiring

Notes on Schematic Diagram

Explains symbols used in diagrams for resistors and capacitors.

Wiring Side of P.W. Board

Illustrates component layout and wiring on the printed wire boards.

Exploded Views and Packing

Packing Method

Instructions for packing accessories and the unit for shipping.

Exploded Views (Mechanism & Cabinet)

Diagrams showing the breakdown of the tape mechanism and unit cabinet.

Replacement Parts List

Replacement Parts: ICs, Transistors, Diodes

Lists part numbers for integrated circuits, transistors, and diodes.

Replacement Parts: Coils, Transformers, Filters, Controls

Lists part numbers for coils, transformers, filters, and control components.

Replacement Parts: Resistors

Lists part numbers and specifications for various resistors.

Replacement Parts: Mechanical and Cabinet Parts

Lists part numbers for mechanical components and cabinet assemblies.

Replacement Parts: Accessories and Packing Parts

Lists part numbers for accessories, packing materials, and cords.