Hitachi D-909 BS Serviceanleitung
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@HITACHI
SERVICEHANUAL*
CONTENTS
SPECIFICATIONS
DISASSEMBLY
ADJUSTMENT
.
CASSETTE
CHASSIS
AND
ADJUSTMENT
LUBRICATION
DESCRIPTION
OF
p ARTS
WIRING
DIAGRAM
PRINTED
WIRING
CIRCUIT
DIAGRAM
PRINTED
WIRING
(D. D motor)
CIRCUIT
DIAGRAM
BLOCK
DIAGRAM
EXPLODED
VIEW
EXPLODED
VIEW
REPLACEMENT
PARTS
SAFETY
PRECAUTIONS
The following precautions should be observed when servicing.
I. Sincemanypartsin the unit havespecial safetyrelated characteristics, always usegenuine Hitachi ' s replacement pans. Especially
critical parts in the power circuit block should not be replaced with other makers.
Critical parts are marked withåin
2. Beforereturning a repairedunit to the customer,the servicetechnicianmust thoroughlytest the unit to ascertain that it is corn.
pieteiy safe to operate without
SPECIFICA
T rack Sy stem :
T apo:
Tapc Speed :
Recording System and
gynom:
T'.üic.
Responsc:
Wow
and Flutter:
Specifications are subject to changewithout notice for performance improvement.
SPECIFICATIONS
STEREO CASSETTE
August
.
TECHNISCHE
3
DEMONTAGE
6
EINSTELLUNGEN
INSPECTION
INSPEKTION
.
8
DES CASSI-ENDECKCHASSIS
. 15
SCHMIERUNG
NEW
BESCHREIBUNG
BAU
16
.
. 19
SCHALTPLAN
BOARD
. .21
PRINTPLATTEN
. 23
SCHALTPLAN
BOARD
PRINTPLATTEN
. 25
SCHALTPLAN
(D. D motor)
. 26
BLOCKSHEMA
. .27
EXPLOSIONSANSICHT
(Cabinet)
.
..
. 28
EXPLOSIONSANSICHT
(Chassetten Tonbandgerat)
(Cassette
Chassis)
. . 29
LIST
.
ERSATZTEILLISTE
..
31
the circuit diagramand printed wiring board.
danger of electricai
4 track
2 channel
stereo
Cassette tape
4.75 crn/s
AC bias, 105 kHz
AC erase
35
or
more
NOR-I:
20 Hz to
18 kHz
30 Hz to
18 kHz*
croa-ll:
20Hz
to 20 kHz
30 Hz to
30 Hz to 19 kHz*
METAL-IV:
20 Hz to 21 kHz
30 Hz to 20 kHz
30 Hz to 20 kHz *
0.022%
(W-RMS)
0.065%
*
AND
PARTS
ARE SUBJECT
INHALTSVERZEiCHNiS
DATEN
UND
EINSTELLUNG
.
NEUER
TEILE
.
.
(D. D motortafel)
.
(D. D motortafel)
(Chassis)
.
....31
shock.
Signal
to Noiso Ratio:
(A weighted,
3% T.H.C)
Distortion:
input Samitivitv
kHz
dB
Power Supply:
dB
Power
Consumption:
Dimensions:
Weight:
TO CHANGE
TAPE
TOYOKAWA
TABLE
DESMATIERES
CARACTÉRISTIQUES.
2
.3
TECHNIQUES
•
DÉMONTAGE
9
RÉGLACE
.11
INSPECTION
ET RÉGLAGE
.15
CHASS
DE
CASSETTE
LUBRIFICATION
. 16
DESCRIPTION
DES
NOUVELLES
PIE-CÉS
. 19
21
SCHEMA
DE CABLAGE
. 23
PLAN
DE
BASE
. 25
PLAN
DE CIRCUIT
26
PLAN
DE BASE
(D. D motor).
. 27
PLAN
DE CIRCUIT
(D. D motor)
. . 28
SCHEMA
VUE EXPLOSÉE
(Coffret)
. .29
VUE EXPLOSÉE (Magnetphote)
TABLEAU
DES PIECÉS
Dolby NR OFF: 61
Reference
Dolby
B
Dolby C NR: 75
Less than 0.8% (at 1 kHz, i60nWb/m)
60
(at
Line in: 80m V,
Line
out:
(Suitabic Load Impedance SC)kohrc,s
or more)
Headphones:
(Suitable Load Impedance C ohms tc
2 kohms)
AC220V,
50 Hz (ZS, VS)
AC240V,
50 Hz (BS)
38 W
435(W)
x 115(H)
6.0 kg
* According
FOR
IMPROVEMENT.
WORKS
chassis
2
4
12
DU
.14
. 15
16
19
.....
.21
. 23
. 25
. 26
27
. 28
. 29
.....
....31
69
or more
i<'hrns
SOO mV
80rnV
(8 ohms)
279(D)
mm
to DIN 05 500
Verwandte Anleitungen für Hitachi D-909 BS
Inhaltszusammenfassung für Hitachi D-909 BS
- Seite 1 PRECAUTIONS The following precautions should be observed when servicing. I. Sincemanypartsin the unit havespecial safetyrelated characteristics, always usegenuine Hitachi ' s replacement pans. Especially critical parts in the power circuit block should not be replaced with other makers. Critical parts are marked withåin the circuit diagramand printed wiring board.
-
Seite 2: Précautions De Sécurité
D-909 D-909 DISASSEMBLY SICHERHEITSMASSNAHMEN to remove the P.W.Bs. How to replace the parts. Sinddie folpr&n Zu benhten. I _ Da Teile dieses Gerates Scherheitsfunktior.n TeiJe im D.D Motor control P.W.B. (Fig. 5) Upper Cover (Fig. 1) nicht dutch Shntiche Teite and«er Herstelier •rsetzt... - Seite 3 D-909 D-909 DÉMONTAGE Comment enlever des piéces mécaniques Comment enlever des cartes cirouits. P.W.B. R M-Schaltplatte Carte circuit Carte å circuit imprin•é de contröleur moteur (l) Couwrdedehaut (Fig. 1) imprimé Retirer les deux visdefixation O D.D. (Fig. 5) Retirer la vis de fixation (2) Couwrcle de fond (Fig.
- Seite 4 D-909 D-909 ADJUSTMENT Adjustment ProceåJre (2) Adjustment Playback the test tape MTU561J or MTT.356U Justment Adjustment Adjustment value MAIN P.W.B. • Adjustment Points an equivalent tape at 12.5kHz and adjust the screw tape point portion so that the output reaches its maxi- 400 Hz Dolby 580mV —...
- Seite 6 D-909 6. Adjustrnent of AF oscillator AF oscillator cornes equal to one as in Fig. Adjustment Adjustment Input After carrying out an AT RS test with Normal tape, value point The wave form make sure that the level difference between 400Hz RTIOI of Fig.
- Seite 7 D-909 D-909 Umrß für die Einstellung des Pegel-FÆinstru- EinsteliungdesAufnahmepegels EINSTEUUNGEN Das Testband MTT-256U Oder MTT-356V baw ein entspre chendesBandnit 12,5kHz abspielenund die men ts Einsteliung d erWiedergabe-Verstårkung • Einstellpunkte HAUPTSCHALTPLATTE Schraube an@-Teil soeinstellen, dagderAugang Regulierungband Einsteliwert Einstellorl sein Maximum erreicht. 580mV —...
- Seite 8 D-909 D-909 RÉGLAGE Réglage de gain d'enregistrement CARTE A CIRCUIT IMPRIMÉ PR INCIPALE des AF-OziIlators Nach Durchfülrung eines ATRSTeStS mit • Points Normalband sicherstellen, daß Pegelunterschied Regulierungland Einste!lwert Einstellpunkt Réglage du zwischen 400Hz und 12kHz weniger als ldB bet- Carte å Circuit imprimé de contröleur RTC02 Wellen form von gain de lecture...
- Seite 9 D-909 D-909 Méåode de régl•r SOURCE et adjuster le de signaux de Branct•erun oscilloscope la borneTP4 [régatif(—) l' indeteur Méåoo mewre pour que la tension Obtanue å la borne en passantper l'intermédiaire du voltmitre La bande détalonnar MTT-256U ou MTT-356U ou Bande d 'adjustment Valeur å...
- Seite 10 D-909 DESCRIPTION OF NEW PARTS. D-909 BESCHREIBUNG DER NEUEN BAU TELE. DESCRIPTION DES NOUVELLES PIECES. LUBRICATION Metal to metal Rotating Pan motor Plastics to metal Sonic slider oil (#1600) IC401 Apply one or two drops Of pan motor Oil or sonic slider Oil IC301 (Note) M58845-402P...
- Seite 11 0-909 0-909 Pin function of M58845-402P ac401) Stiftfunktionen von M58845402P (IC401) Fonctions des borne de M58U5402P (IC401 ) Pin No. Function Function Pin Symbol Funktion Stift.Nr. Stift-Symbol Funktion Stift.Nr. No borne Symbole F mction No borne Symbole broche FL meter grid output Hi potential. Hi potential is output during PAUSE.
- Seite 12 D-909 WIRING DIAGRAM • SCHALTPLAN SCHEMA DE CABLAGE AUTO MEMORY HEADPHONE TIMER P.W.B. P.W.B. REC CALIBRATION P.W.B. P.W.B. POWER SUPPLY CORD CN12 CN13 CN14 -1 CN20 p 15 -CN18 POWER SUPPLY P.W.B. BLUE WHITE YELLOW POWER TRANSFORMER WHITE MAIN PWB ORANGE (for BS only: VIOLET)
- Seite 13 Axial lead cylindrical ceramic capacitor D-909 Earth, Other I Zylindrischer Keramikkondensatormit pxialer Zuleitung Condensateur c éramiquecylindrique å conducteuraxial RTTL.R RT401L.R RT2L MAIN P.W.B. PLAYBACK*GAIN ADO... METER ADJ. IN. ADJ.: METER ADJ. REMOTE CONTROL JACK FL METER COUNTER P.W.B. IC401 R 19t S.
- Seite 14 * : Axial lead cylindrical ceramic capacitor SIGNAL CURRENT D-909 Zylindrischer Keramikkondensator mit axialer Zuleitung CIRCUIT DIAGRAM • SCHALTPLAN • PLAN DE CIRCUIT e: for Playingback : for ATRS Test • : for Recording Condensateur céramique cylindrique å conducteur axial BUFFER CASSETTEREC DOLBY...
- Seite 15 HOLE p.W.B. D.D MOTOR CONTROL P.W.B. D.D MOTOR COIL P.W.B. COIL COIL 3-2 COIL 5678 61514 3121110 COIL COIL 2- I COIL R28 C17 1008 C16e—l CIS q 1234 22/10 56K 0.001 15K - 22/10 470K HAI 1713 SPEED CONTROL PULSE screarr HZ12B...
- Seite 16 REEL PULSE DETECT HOLE tc HOLE MODIL.R DOLBY SWITCHING OUTPUT LEVEL DETECT PREVENTION REC LEVEL CONTROL —L S404 SWITCH SWITCH BUFFER AMP CONTROL LINE OUT LINE IN BUFFER LINE HEADPHONE MUTE rl*E 'CIOI SWITCHING WHITE +13V RECCALIBRATION DOLBY MITCH TEST SWITCH ON/OFF S706 S704...
- Seite 17 VUE EXPLOSEE EXPLODEO v/Ew EXPLOSIONSANSICHT D-909 (Chassetten To nbandgerat) (Magnétphone) (Cassette Chassis) Note 2) 9 x3 (Note 1) Adjust the pressure roller armto properheight w• h the polyesterwasher (t=O.13)or 6=0.25) (Note 2 ) Byuse o f (t=O.5) or @ (t=O.25), adjust thrust backlash (Note...
- Seite 18 ERSATZTEILLIST • TABLEAU DESPIECES D-909 REPLACEMENT PARTS LIST SYMBOL PART pART SYMBOL DESCRIPTION SYMBOL pART DESCRIPTION ESCRIPTION SRD%P 2200 ±5% R21 LR 0129569 IOAF C213L 0252521 CAPACITOR SRD%P 100KQ 0.22gF R22LR 0129661 C214L 0252802 SRD%P 5.6KQ R23LR 0129619 C251 0252522 22gF 1243901 0.01...
- Seite 19 D-909 SYMBOL pART SYMBOL PART SYMBOL PART DESCRIPTION DESCRIPTION DESCRIPTION 0129601 R133 0129535 SRD%P R333 0129661 100KS2 SRD%P R502 ±5% SRD'/4P 3.9KS2 MO 100 R134 0129615 SRO%P R334 0129631 10KQ SRD%P 8503 0119601 RS3B MO 100 0129623 8.2KQ SRO%P IOKQ SRD%P 8335 0129631...
- Seite 20 D-909 SYMBOL PART PART SYMBOL DESCRIPTION SYMBOL pART DESCRIPTION DESCRIPTION LC TRAP coil L4LR 2136341 233D62 ERB12-01 0201 2317822 20880 L5LR 2227991 Choke coil 3.3mH 0505 2337762 ERB1201 0202 2SC1740LN(S) 2328652 L6LR 2227991 Choke coit 3.3mH 2SC1740LN(S) 0203 2328652 L7LR 2136792 BIAS TRAP...
- Seite 21 D-909 pART SYMBOL SYMBOL PART SYMBOL PART DESCRIPTiON DESCRIPTION DESCRIPTION CABINET CHASSIS ASSEMBLY CAPACITORS DIODES 3965997 Moid chassis 22ßF 2338012 1S2473 0252322 0252322 22gF 2338012 1S2473 3927411 Foot 0275016 MF 0.06&1F 2338012 1S2473 3913006 Bushing 0275013 MF 0.022gF 2338012 19473 0275015 MF 0.047uF 50 v...
- Seite 22 D-909 SYMBOL PART SYMBOL SYMBOL DESCRIPTION PART DESCRIPTION DESCRIPTION 4567455 30 x 14 DT bind head screw 396791 Reel base ass'y CASSETTE CHASStS ASSEMBLY (earth plate) 3967941 Supply turn table ass'y 2.60 x 8 BT bind head screw 8691308 Take up turn table ass'y 3967921 4462611 Base holder ass'y...