Hitachi J3 Serviceanleitung

@HITACHI
SAFETY PRECAUTION
The following precautions should be observed when servicing.
I. Since many parts in the unit have special safety related characteristics, always use genuine Hitachi's replacement parts. Especially critical parts in the
power circuit block should not be replaced with other makers.
Critical parts are marked with
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
J3 (STEREO CASSETTE
GENERAL SPECIFICATIONS
Semi conductors:
Power supply:
Power consumption:
Dimensions:
Weight
SPECIFICATIONS
O STERE CASSETTETUNERAMPLIFIER/SPEAKER
September
in the circuit diagram.
TUNER AMPLIFIER)
ICs: 11
Transistors: 29
FET: I
LEDs: 17
Diodes: 23
AC 1 10-1 20V, 220-240V. 50/60
DC 12V battery: (IEC "D" x 8, or
equivalent)
Car: (Use Hitachi car battery cord
DC-MI H)
Battery pack: DC 12V rechargeable
1 oow
241 (H) x 581 (W)x 230 (D)
12.5 kg (with batteries)
AND PARTS ARE
1982
TY
CONTENTS
SPECIFICATIONS
SPÉCIFICATIONS
DISASSEMBLY
DIAL CORD STRINGING • FOHRUNG DES
ABSTIMMSEILZUNGS
CORDON D'ACCORD.
FEATURES • MERMALE
ADJUSTMENT • EINSTELLUNGEN • RÉGLAGE.
INSPECTION OF MECHANISM
MECHANISMUS
LUBRICATION
ADJUSTMENT
EMPLACEMENT
FRONT AND REAR
BEDIENUNGSTAFEL
PRINTED WIRING
PLAN DE BASE..
CIRCUIT DIAGRAM
PLAN DE CIRCUIT.
EXPLODED VIEW
VUE EXPLOSÉE
REPLACEMENT
TABLEAU DES PIECE...
BLOCK DIAGRAM
Battery Life when using cas-
sette continuously:
At 10 mw output- FM re-
cording:
Music playback time (at vo-
lume level 7):
Hz
TUNER SECTION
Circuit system:
Frequency range:
Sensitivity:
SUBJECT TO CHANGE FOR
TOYOKAWA
No. 285EGF
• INHALT • SOMMAIRE
• TECHNISCHE DATEN
• AUSEINANDERBAU • DÉMONTAGE...
• CHEMINEMENT DU
• CARACTÉRISTIQUES
• INSPEKTION DES
• INSPECTION DU MÉCANISMES.
• SCHMIERUNG • LUBRICATION
PARTS LOCATION • LAGE DER JUSTIERTEILE
DES ORGANES DE RÉGLAGE..
PANELS • VORDERE UND HINTERE
• PANNEAUX AVANT ET ARRIÉRE 16.17
BOARD • PRINTPLATTEN •
SCHALTPLAN •
• EXPLOSIONSANSICHT •
PARTS LIST • ERSATZTEILUSTE
• BLOCK SCHEMA • SCHEMA.
8 hours
2 hours
FM/MW/SW 3 band superheterodyne
FM: 88 to 108 MHz
530 to 1,605 kHz
MW:
3.2 to 12 MHz
FM. 5 uV (SIN 30 dB)
MW: 300 gV/rn (SIN 20 dB 400 Hz
30% MOD)
15 pv (SIN 20 dB 400 Hz 30%
sw.
MOD)
IMPROVEMENT.
WORKS
. 1-3
5
6
. 6-13
. 14
14
•
15
1820.22
•
. 25,26, 29-35
27