Hitachi TRK 640 Service Manual

Page 1

(93 HITACHI

TY No. 592 EF

TRK-64O [E, E(BS), W, AU, H, HC]

SERV CE MANUAL

CONTENTS

TRK-650 IE.E(BSII
TRK-P65 [E.E(BS)1

TNGQIWDMM @IIeesis

TRK-P65

SPECIFICATIONS ..
DlSASSEMBLY .,
DIAL CORD STRINGING

ADJUSTMENT ........... 6 REGLAGE ..................................................
LUBRICATION . 12 LUBIFICATION ..

MAINTENANCE .. 12 ENTRETIEN

PRINTEDWIRING BOARD 20-24 PLAN DE BASE I

CIRCUIT DIAGRAM

TABLE DES MATI ER ES

CARACTERISTIQUES TECHNIQUES
DE MONTAGE ...................................
CHEMINEMENT DU CORDON D'ACCORD .

PLAN DE CIRCUIT.

BLOCK DIAGRAM . 29 SCHEMA ..........
EXPLODED VIEW VUE EXPLOSEE
(Cabinet) ......... (Coffret) .................
(Cassette chassis) .r (Chasis de Cassette) .
REPLACEMENT PARTS LIST TABLEAU DES PIECES,
THE DIFFERENCE 0F MODEL 0 LA DIFFERENCE DE MODELE
mom micsso TFIK-P65
PRESET/TIMER ewe.
Sous-plaquette présélection/minuterie (PHESETmMER) * SE SE
PRESET SWITCH (5701 ~ 5706) i 7 USE
COMMUTATEUR DE FRESELECTION (5701 ~ $706)
PRESET VOLUME IRV701 ~ RV705) 7 , , USE
VOLUME DE PRESELECTION (me ~ RV705I
SAFETY PRECAUTIONS

The following precautions should be observed when servicing.

1. Since many parts in the unit have special safety-related characteristics, always use genuine Hitachis
replacement parts. Especially critical parts in the power circuit block should not be replaced with other makers.
Critical parts are marked with A in the circuit diagram and printed wiring board.

2. Before returning a repaired unit to the customer, the service technician must thoroughly test the unit to
ascertain that it is completely safe to operate without danger of electrical shock.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

RADIO CASSETTE TAPE RECORDER

L September 1988

YOKOHAMA WORKS

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Frequenoe intermédiaire: FM: 10.7 MHz
OC/PO/GO: 455 kHz [pour E, E(BS)]
OCZ/OCl/P0(AM): 455 kHz [sauf E, E(BS)l
Sensibilite: FM: 20 dB (utile)
14 (18 (max.)
0C: 38 (15 (mile) [pour E, E(BS)]
30 dB (max.) [pour E, E(BS)]
0C2: 36 dB (utile) [pour W, AU]
32 dB (max) [pour W, AU]
0C1: 54 dB (utile) lDOur H, HC, W, W(UN),
WiUNS). AU]
45 dB (max) [pour H, HC, W, W(UN),
WlUNS), AU]
PO(AM): 54113 (mile)
46 dB (maxt)
G0: 50 dB (mile) lpOurE, E(BS)l
57 dB (max.) [Pour E, E(BS)]
Antennas: FM/OC/OCZ: antenne fige (aérien)
(aériens) OC1/PO(AM)/GO: antenne en ferrite
incorporée (aérien)

OSECTION LECTEUR-ENREGISTREUR DE CASSETTE

Bender En cassette

Systeme de piste: 4 pistes, 2 canaux stereo
Vitesse de defilement: 4,75 cm/s

Systeme d'enregistrement: Polarisation c.a. (TAPEZ)
Systems delfecement: Aimant (TAPEZ)

Taux deflacement: 50 dB

Réponse an lréquence: Normal: De 80 a 10000 Hz
Rapport signal-bruit: 40 dB

Pleurage et scintillement: 0,25% (watts effic.)
Dicphonie: Entre Ies pistes: 60 dB

Entre les canaux: 40 dB
Impedance et sansibilité

d'entrée: CD/entrée ligne: 600 mV, 100 kn
Impedance do charge
do sortie: Hauf-parleur: 8 ohms

TRK-640
TRK-650
TRK-PGS

Distortion: 3%
Mntaur: Micro moteur CC
Téte: Permalloy

o CARACTERISTIOUES GENERALES

Semi canducteurs: Circuits intégrés: 5

Transistors: 3 [sauf E, E(BS)] (pour TRK-64D)
4 [pour E, EiBSH (pourTRK-GMJ)
7 [pour E, EiBSH (pourTRK-ESO)
9 [for E, E(BS)] (Pour TRK-PSS)
Diodes: 8 [sauf W] (pour TRK-640)
9 [pour W] (pour TRK-640)
10 [for TRKVESO]
16 [for TRK-PSS)
Diodes électroluminescentes: 1

Alimentatinn: Secteur alternatif: 120V, 60 Hz (pour H, HC]

220V, 50 Hz [pour E]
240V, 50 Hz [pour E(BS),
AU]
110-127V/200 '7 220V
[230 - 250V, 50/60 Hz
[pour W]
Courant continu: 9V [lEC R20 (pile D")
x 6 cu I'équivalent]
Voiture: utilisen un adaptateur
pour batterie

[pour W]
Consommation
électrique: 10W
Niveau de sortie: 20W PMP (fonctionnement sur la secteur)
1.2W/canaI(C.C.a1D% D.H.T.)
Haut-parleurs: 10 cm (x 2)
Dimensions: 480 (L) x 150 (H) x 110 (P) mm
Poids: 2.85 kg (piles comprises)

Les caractéristiques techniques peuvent étre modifiees sans préavis pour
amélrorations des performances

DISA SSEMBI. Y

1. Front Case (Fig. 1, 2)
Remove the battery cover, one screw (D and eight
screws (2). Pull the front case out in the direction of arrow
(A).
When the front case has been pulled halfway out,
remove connector ® (two places) on the radio P.W.B.
and remove one 1P plug.

2. Radio P.W.B. (Fig. 2)
After removing the front case, remove one screw (3) and
remove connectors ® (two places), ®, ©. ©. and (E) on
the radio P.W.B.. Pull the radio P.W.B. out in the direction
of arrow (B).

3. Cassette Chassis (Fig. 3)
After removing two screws (4), remove radio P.W.B.
connectors (B) and LE) (Fig. 2) and two tabs, Pull the
cassette chassis forward in the direction of arrow (C3.

4.

Power supply P.W.B. (Fig. 4)
Remove two screws (3, one screw © and one screw (7).

Audio P.W.B. (Fig. 5)

After removing the tone control knob and volume
control knob, remove one screw @, remove connector (9
on the audio P.W.B. in the direction of arrow (D).

LED P.W.B. (Fig. 6)
Remove one screw ® and remove the LED P.W.B..

. PRESET-TIMER P.W.B. (Fig. 6)

Remove three screws (10) and remove radio P.WB.
connectors © and (E) (Fig. 2) in the direction of arrow {E}.
(The TRK-640 does not use a PRESET/TIMER P.W.B..)

. Mic P.W.B. (Fig. 6)

Pull the mic P.W.B. out in the direction of arrow (F).