Sharp vz 2500 e service manual

Page 1

SHARP

SERVICE MANUAL/ SERVICE-MLEITUNG/ MANUEL DE SERVICE

8MP

Aulo Frogram Soarch syslum

(The record in the photo
is not an accessory.)
Photo: V2~2500H

[I] DOLBYSYSTEM ®

0 Noiu nductlon symm mlnuhcturod undur Ileana from Dolby
Laborutorios Lleoming Corporation. "Dolby" and on: double~D
symbol an trod-mark: of Dolby Labor-toms Lianting Corporation.

OGoriusdluntIrdrflckunguyn-m unmr Lium von Dolby Labormrlu
Llaming Corporation hmllt.

Do: Wort "Dolby" und dos Symbol do: doppolmn D sind dlo Morkon»
zolehan von Dolby Laboratories Liamlnn Corporation.

0 Swami do dductlon do bruit MrIqul tout lie-nu do Dolby Lwor-
atorIu Llooming Oorpornlon. Lo mot "Dolby" at In rymbole Doubl-
D tont I marquis do fobriqua do Dolby Labormrlu Licensing
Carpal-mien.

VZ-2500H
VZ~2500E

ATSM882101MCT

VZ-2500H
' VZ-2500E

oln the inurom of mar-"fury the set should be rastorod to its
original condition and only part: identical to those specified be
used.

Olm Interest. der Bonutzor-Slohurholt some dlom Gerit winder
not mine" ursprfinwchen Zusund eingastallt und nur din vorac-
uonriobonen Toilo varwandct warden.

'Dm: l'lntéret do I'utllitmur, l'apparuil doit am; monstitué
dons a condition promibrs at mules doc piéou ldentIques i cellos
Ipécifiées, doivunt ttra utlllsées.

INDEX TO CONTENTS

FEATURES/SPECIFICATIONS ........... '. . ...... 2~4 ADJUSTMENT OF TUNER CIRCUIT ............ 33~36
NAMES OF PARTS/VOLTAGE SELECTOR SCHEMATIC DIAGRAM/WIRING SIDE OF

ADJUSTMENT . . P.W. BOARD ......................... 37 ~47
DISASSEMBLY . . . ............... EXPLODED VIEW (TAPE DECK/PLAYER/CABINET) . . 48~53
DIAL CORD STRINGING/SETTING OF PLAYER WIRE I3 EQUIVALENT CIRCUIT (BLOCK DIAGRAM) OF IC 4 . . 54. 55
BLOCK DIAGRAM . . . . . . I . . ............... 14, 15 TYPES OF TRANSISTOR AND LED ............... 55
CIRCUIT DESCRIPTIONS . . . , . .......... 16~28 NOTES ON SCHEMATIC DIAGRAM/PACKING METHOD/AC
ADJUSTMENT OF PLAYER MECHANISM . . . . . . . . . 29, 30 POWER SUPPLY CORD ......... . ........... 55
ADJUSTMENT 0F TAPE DECK MECHANISM l I . . . . . 294 30 REPLACEMENT PARTS LIST ................ 57~66
ADJUSTMENT AND CHECK OF RECORD/PLAYBACK

AMPLIFIER CIRCUIT . . . . ................. 31,32
® INHALTZVERZEICHNIS
HAUPTMERKMALE/TECHNISCHE DATEN .......... 2~4 EINSTELLUNG DES TUNER-KREISES ........... 33~36
BEZEICHNUNG DER TEILE/EINSTELLUNG DES SCHEMATISCHER SCHALTPLANNERDRAHTUNGSSEITE DER

SPANNUNGSWAH LERS ...................... 5, 6 LEITERPLATTE ....................... 37 ~47

IERLEGEN
BESAITUNG DES SKALENANTRIEBS/EINSETZEN DES
PLATTENSPIELERANTRIEBSDRAHTS
BLOCKSCHALTPLAN . . .
KREISBESCHREIBUNGEN . . . ................
EINSTELLUNG DES PLATTENSPIELER-
MECHANISMUS
EINSTELLUNG DES CASSETTENMECHANISMUS .....
EINSTELLUNG UND KONTROLLE VON AUFNAHME UND
WIEDERGABE IM VERSTARKERSCHALTKREIS . . . . 31, 32

®

PARTICU LARITES/CARACTERISTIQU ES ........... 2 ~4
NOMENCLATURE/REGLAG DU SELECTEUR DE

TENSION ...................... ..5.6
DEMONTAGE. ...................... 7 ~ 12

PASSAGE DU I=IL DU CADRAN/REGLAGE DU FIL DU
TOURNE-DISOUES
DIAGRAMME SYNOPTIOUE . . .
DESCRIPTION DES CIRCUITS . . . . .
REGLAGE DU MECANISME DU TOURNE DISOUES . . 29. 30
REGLAGE DU MECANISME DE MAGNETOPHONE . .
REGLAGE ET VERIFICATION DU CIRCUIT DE L'AMPLI-
FICATEUR DENREGISTREMENT/LECTURE . l , . . .

31,32

EXPLOSIONSDARSTE LLUNG (CASSETTE N /PLATTENSPIE LE R/

GEHAUSE) .......................... 48 ~ 53
ERSATZSCHALTKREIS (BLOCKSCHALTPLANI DES

INTEGRIERTEN SCHALTKREISES ............ 54, 55
TRANSISTOREN UND LEUCHTDIODENTYPEN ........ 55

ANMERKUNGEN ZUM SCHEMATISCHEN SCHALTPLAN/

TABLE DES MATIERES

VERPACKUNGSMETHODE/NETZKABEL ..... , . . . 56
ERSATZTEILLISTE . ...................... 57~66
REGLAGE DU CIRCUIT DU TUNER ........... 33~35
DIAGRAMME SCHEMATIQUE/COTE CABLAGE DE LA

PLAOUETTE DE MONTAGE IMPRIME ........ 37~47
VUE EN ECLATE IFLATINE MAGNETOPHONE/TOURNE-

DISOU ES/COFFRET) .................... 48 ~ 53
CIRCUITS EQUIVALENTS (DIAGRAMME SYNOPTIOUE)

DE CI TYPES DE TRANSISTOR ET LED ......... 55

NOTES SUR LE DIAGRAMME SCHEMATIOUE/METHODE
D'EMBALLAGE/CABLAGE DU GORDON D'ALIMENTATION
SECTEUR . . . ........................... 55

SHARP CORPORATION OSAKA, JAPAN

Page 2

@

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT,
PLEASE REFER TO THE OPERATION MANUAL.

play):

FEATURES
0 Automatic playing of both sides of a record (both-side

a Fully automatic control of the turntable with micro-
computer and linear tracking mechanism:

General
Power source

Power consumption:
Dimensions:

Weight:
lnput sockets:

Output sockets:

Other sockets:

Semiconductors:

Amplifier Section
Circuit:

Power output:
(DIN 45 324)

Supplied devices:

Tuner Section
Circuit:

Frequency range:

0 Vertical record player with slim design to save space:
0 APSS (Auto Program Search System):

C

I

Dolby NR system:

3-way power source operation:

SPECIFICATIONS

AC; 110, 220, 240V, 50/60 Hz

DC. Internal (Batteries): Ten HP-2 or
UM/SUM-l size

DC. External: 15V

60W

Width; 710 mm (27-31/32")
Height; 407 mm (16")
Depth; 195 mm (7-11/16")

13.5 kg (29.8 lbs.) without batteries
Microphone; 1 mV/6009,4>6.3 mm
jack

AUX (PB); 120 mV, 47 km
Aux (REC); 100 mV, 47 k9
Headphones; 89., 456.3 mm socket

FM antenna; outside antenna

MW, LW, SW antenna; outside antenna
Earth; MW, LW, SW antenna earth
1 L5), 16 le, 2 FET, 40 transistors,
52 diodes, 10 LEDs, 3 photo-interrup-
ters

OTL amplifier

RMS; 17W (8.5W+8.5W)/3 ohm (DC
15V supply operation)

MPO; 22W (11w+11W)/30hm
(Rated AC supply operation)

Bess control, treble control, balance

control, mic mixing control

Superheterodyne FM/MW/LW/SW

tuner, PLL stereo demodulation
circuit
FM; 87.6 - 108MHz

Intermediate frequency:

MW; 520 - 1.620 kHz
LW; 148.5 - 285 kHz
SW; 5.95 - 18 MHz
FM; 10.7 MHz

MW, LW, SW; 455 kHz (VZ-2500H)
468 kHz (VZ~2500E)

Cassette Deck Section

Recording tracks:
Recording system:
Erasing system:
Heads:

Motor:

Tape speed:

Fast ton/ward time:
Rewind time:
Wow & flutter:

Frequency response:

S/N:

Player Section
Type:

Motor:

Drive system:
Speeds:

Wow & Flutter:
Tonearm:
Cartridge:

Supplied devices:

Speaker Section
Speakers:

Frequency range:
Impedance:

4 track 2 channel stereo system
AC bias (90 kHz)

AC erasing system (90 kHz)
Record/playback head x 1, eras:
head x 1

Electronic control DC motor

4.8 cm/sec.

100 sec. (0-60 tape)

100 sec. (0-60 tape)

0.2% (DIN)

Normal tape; 30 - 12,000 Hz
Chrome tape: 30 - 13,000 Hz
Metal tape; 30 - 14,000 Hz

Dolby NR off; 52 dB
Dolby NR on; 62 dB
(Metal tape, over 5kHz)

Microcomputer control, linear tracking
full auto

Electronically controlled DC motor
(for platter drive) x 1

DC motor (for tonearm drive) x 1
Belt drive system

33-1/3, 45 rpm

0.1% (DIN)

Dynamic balanced

VM type

Frequency response: 20 - 20,000 H2
Auto lead-in, auto return, auto record
size sensing, automatic speed selection,
both sides play, repeat play

16cm woofer x 2
5cm tweeter x 2
70 - 20,000 Hz
352

out prior notice.

Specifications for this model are subject to change with-

Note for users in UK

Recordlng and playback of any material may require consent
which SHARP are unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Drunltlc and Musical Per-
formers Promotion Act 1958, the Performers Protectlon Acts 1963
and 1972 and to any subsequent statutory enactments and orders.

_2_

.Jrr