WQ-730H (serv.man2) - Sharp Audio Service Manual (repair manual)

wq-730h (serv.man2) service manual
Model
WQ-730H (serv.man2)
Pages
24
Size
1.35 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / Portable
File
wq-730h-sm2.pdf
Date

Read Sharp WQ-730H (serv.man2) Service Manual online

WQ-730H
– 1 –
SERVICE MANUAL/SERVICE-ANLEITUNG/MANUEL DE SERVICE
WQ-730H(BK)
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified
should be used.
• Im Interesse der Benutzer-Sicherheit sollte dieses Gerät wieder
auf seinen ursprünglichen Zustand eingestellt und nur die
vorgeschriebenen Teile verwendet werden.
• Dans l’intérêt de la sécurité de l’utilisateur, l’appareil devra être
reconstitué dans sa condition première et seules des pièces
identiques à celles spécifiées, doivent être utilisées.
 CONTENTS
Page
NOTES ON SCHEMATIC DIAGRAM .........................  11
SCHEMATIC DIAGRAM / WIRING
 SIDE OF P.W.BOARD ...............................................  12
PACKING METHOD (FOR UK ONLY) ........................  16
REPLACEMENT PARTS LIST/EXPLODED VIEW
Page
IMPORTANT SERVICE NOTES (FOR UK ONLY) .......  2
SPECIFICATIONS ........................................................  2
NAMES OF PARTS ......................................................  4
FITTING OF DIAL POINTER ........................................  4
DISASSEMBLY .............................................................  6
ADJUSTMENT ..............................................................  8
INHALTSVERZEICHNIS
Seite
TECHNISCHE DATEN ..................................................  2
BEZEICHNUNG DER TEILE ........................................  4
ANBRINGEN DES SKALENZEIGERS .........................  4
ZERLEGEN ...................................................................  6
EINSTELLUNG .............................................................  8
Seite
ANMERKUNGEN ZUM SCHEMATISCHEN
 SCHALTPLAN ............................................................  11
SCHEMATISCHER SCHALTPLAN/
 VERDRAHTUNGSSEITE DER LEITERPLATTE .......  12
ERSATZTEILLISTE /EXPLOSIONSDARSTELLUNG
TABLE DES MATIÈRES
Page
REMARQUES CONCERNANT LE DIAGRAMME
 SCHÉMATIQUE .........................................................  11
DIAGRAMME SCHÉMATIQUE/CÔTÉ CÂBLAGE DE
 LA PLAQUETTE DE MONTAGE IMPRIMÉ ...............  12
LISTE DES PIÈCES DE RECHANGE /VUE EN ÉCLATE
Page
CARACTÉRISTIQUES ..................................................  2
NOMENCLATURE ........................................................  4
FIXATION DE L’AIGUILLE ...........................................  4
DÉMONTAGE ...............................................................  6
RÉGLAGE .....................................................................  8
E
D
F
No. SX672WQ730HBK
SHARP CORPORATION
WQ-730H
– 2 –
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
E
OUT
WITHSTANDING
VOLTAGE TESTER
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF BATTERY
TERMINAL
+
AC
UNIT
PROBE
IMPORTANT SERVICE NOTES (FOR UK ONLY)
SPECIFICATIONS
     
General
Power source:
AC 220-230 V, 50 Hz
DC 12 V ["D" size (UM/SUM-1,R20
or HP-2) battery x 8]
Power consumption:
30 W
Output power:
PMPO; 60 W (30 W + 30 W)
(AC operation)
MPO (Max.); 20 W (10W + 10 W)
(AC operation)
RMS; 10 W (5 W + 5 W)
(DC operation, DIN 45 324)
Speakers:
12 cm (4-3/4") free-edge
woofer x 2
5 cm (2") surround speaker x 2
Optput terminal:
Headphones; 16-50 ohms
(recommended; 32 ohms)
Dimensions:
Widh; 600 mm (23-5/8")
Height; 195 mm (7-11/16")
Depth; 190 mm (7-1/2")
Weight:
4.3 kg (9.5 lbs.) without batteries
    
Radio section
Frequency range:
FM; 87.5 - 108 MHz
MW; 526.5 - 1,606.5 kHz
LW; 148.5 - 283.5 kHz
    Tape recoder section
Frequency rasponse:
60 - 12,000 Hz (Normal tape)
Signal/noise rario:
40 dB (TAPE 1, recording/
playback)
55 dB (TAPE 2, playback)
Wow and flutter:
0.15 % (DIN 45 511)
Motor:
DC 12 V electric governor
Bias system:
AC bias
Erase system:
Magnet earse
Specifications for this model are subject to change without
prior notice.
Before returning the unit to the customer after completion of
a repair or adjustment it is necessary for the following with-
stand voltage test to be applied to ensure the unit is safe for
the customer to use.
Setting of Withstanding Voltage Tester and set.
Set name
set value
Withstanding Voltage Tester
Test voltage
4,240 VPEAK
3,000 VRMS
Set time
6 secs
Set current(Cutoff current)
4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzor sounds.
WQ-730H
– 3 –
D
F
POUR LA DESCRIPTION COMPLÉTE DU FONCTION-
NEMENT DE CET APPAREIL, SE REPORTER AU MODE
D'EMPLOI.
EINE VOLLSTÄNDIGE BESCHREIBUNG DER BEDIE-
NUNG DIESES GERÄTES IST IN DER BEDIENUNGS-
ANLEITUNG ENTHALTEN.
TECHNISCHE DATEN
CARACTÉRISTIQUES
     
Allgemeines
Spannungsversorgung: Netzspannung 220-230 V, 50 Hz
Gleichspannung 12 V [Batterie in
Größe "D" (UM/SUM-1,R20 oder
HP-2) x 8]
Leistungsaufnahme:
30 W
Ausgangsleistung:
Spitzenmusikleistung; 60 W
(30 W + 30 W) (Netzbetrieb)
Musikleistung (max.); 20 W
(10W + 10 W) (Netzbetrieb)
Sinusleistung; 10 W (5 W + 5 W)
(Gleichspannungsbetrieb, DIN 45
324)
Lautsprecher:
Randloser 12 cm-Tieftöner x 2
5 cm Surround-Lautsprecher x 2
Ausgang:
Kopfhörer; 16-50 Ohm
(empfohlen; 32 Ohm)
Abmessungen:
Breite; 600 mm
Höhe; 195 mm
Tiefe; 190 mm
Gewicht:
4,3 kg ohne Batterien
     Radio-Teil
Frequenzbereich:
UKW; 87,5 - 108 MHz
MW; 526,5 - 1.606,5 kHz
LW; 148,5 - 283,5 kHz
     Tonbandrecorder-Teil
Frequenzgang:
60 - 12.000 Hz (Normalband)
Rauschabstand:
40 dB (TAPE 1, Aufnahme/
Wiedergabe)
55 dB (TAPE 2, Wiedergabe)
Gleichlauf-
schwankungen:
0,15 % (DIN 45 511)
Motor:
Elektrischer Regler für 12 V
Gleichspannung
Vormagnetisierungs-
system:
Wechselspannungsvormagneti-
sierung
Löschsystem:
Magnetische Löschung
     
Général
Alimentation:
220-230 V CA, 50 Hz
12 V CC [Pile "D" (UM/SUM-1,R20
ou HP-2) x 8]
Consommation:
30 W
Puissance de sortie:
PMPO; 60 W (30 W + 30 W)
(fonctionnement sur CA)
MPO (maxi); 20 W (10W + 10 W)
(fonctionnement sur CA)
RMS; 10 W (5 W + 5 W)
(fonctionnement sur CC, DIN 45
324)
Haut-parleurs:
Woofer à bords libres de 12 cm x 2
Haut-parleur surround de 5 cm x 2
Borne de sortie:
Casque; 16-50 ohms
(recommandé; 32 ohms)
Dimensions:
Largeur; 600 mm
Hauteur; 195 mm
Profondeur; 190 mm
Poids:
4,3 kg sans piles
     Radio
Gamme de fréquences: FM; 87,5 - 108 MHz
PO; 526,5 - 1.606,5 kHz
GO; 148,5 - 283,5 kHz
     Magnétophone à cassette
Réponse en fréquence: 60 - 12.000 Hz (Bande normale)
Rapport signal/bruit:
40 dB (TAPE 1, enregistrement/
lecture)
55 dB (TAPE 2, lecture)
Pleurage et
scintillement:
0,15 % (DIN 45 511)
Moteur:
Régulateur électrique de 12 V CC
Système de
polarisation:
Polarisation CA
Système d'effacement: Effacement magnétique
Dietechnischen Daten für dieses Modell können ohne
vorherige Ankündigung Änderungen unterworfen sein.
Les caractéristiques de ce modèle sont sujettes à modifi-
cation sans préavis.
WQ-730H
– 4 –
NAMES OF PARTS
E
14
16
21
20
22
19
24
23
2 3 4 5 6 7 8 9 10 11
12
25
1
17
18
13
15
26
27
28
29
30
31
1. (TAPE 1) Cassette Compartment
2. (TAPE 1) Record Button:
3. (TAPE 1) Play Button:
4. (TAPE 1) Rewind Button:
5. (TAPE 1) Fast Forward Button:
6. (TAPE 1) Stop/Eject Button:
7. (TAPE 1) Pause Button:
8. (TAPE 2) Play Button:
9. (TAPE 2) Rewind Button:
10. (TAPE 2) Fast Forward Button:
11. (TAPE 2) Stop/Eject Button:
12. (TAPE 2) Cassette Compartment
13. Power Indicator
14. FM Stereo Indicator
15. Dubbing Speed/Built-in Microphone/FM Mode
Switch
16. Function Selector Switch
17. Tuning Control
18. Band Selector Switch
19. Headphone Socket
20. Surround Switch
21. Built-in Microphone
22. Extra Bass Control: X-BASS
23. Graphic Equalizer Controls
24. Volume Control
25. Surround Speaker
26. Woofer
27. Bass Reflex Duct
28. FM/SW Telescopic Rod Arial
29. Beat Cancel Switch
30. AC Power Input Socket
31. Battery Compartment
1. Remove the main PWB. Attach the dial pointer as shown arrow
A   on the front cabinet, putting it into the section indicated by
arrow     .
2. Install the main PWB in the front cabinet and secure it with the
four screws.
3. Turn the dial drum in the direction indicated by arrow     . Set
the dial pointer to point "0", and then make the rest of the
adjustments.
A
B
C
Front Cabinet
Dial Drum 
   (220)
Screw(609)
ø3 x8mm
Screw(609)
ø3 x8mm
Screw(608)
ø2.6 x8mm
Main PWB
Dial Pointer (221)
Dial Pointer (221)
''0''Point
B
C
A
Tuning 
Control 
Knob (223)
Figure 4
FITTING OF DIAL POINTER
/
/
Page of 24
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Download Sharp WQ-730H (serv.man2) Service Manual (Repair Manual)

Here you can read online and download Sharp WQ-730H (serv.man2) Service Manual in PDF. WQ-730H (serv.man2) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp WQ-730H (serv.man2) Portable. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.