Hitachi TRK 3 D 80 Service Manual

Page 1

.- TY N . 594 EF
I9) HITACHI (3080
SERVICE MANUAL m.m.siali.w.w(u~).m

ii©l? E, ESTES?)
TNaQiOWmMW chassis

except E, ETEBS)
TNDSQTZRIITDT @© chassis

CONTENTS _ TABLE DES MATIERES

SPECIFICATIONS . CARACTERISTIOUES TECHNIQUES
DISASSEMBLY ..... DEMONTAGE ................................
DIAL CORD STRINGING CHEMINEMENT DU GORDON D'ACCORD .
ADJUSTMENT ,. REGLAGE .....
LUBRICATION LUBIFICATION .
MAINTENANCE. ENTRETIEN ..
PRINTED WIRING BOARD PLAN DE BASE 15,16
CIRCUIT DIAGRAM ......................... PLAN DE CIRCUIT ...................................................................... 17 - 20
EXPLODED VIEW VUE EXPLOSEE
(Cabinet) ............ (Coffret) ................... .. 21,22
(Cassette chassis) . (Chasis de Cassette) ._ 23,24
REPLACEMENT PART TABLEAU DES PIECES ....................................................................... 25
r 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.

SPE CIFI CA TIONS
ORADIO SECTION
Circuit System: FM/SW/MW/LW»4bands superheterodyne Emma
[ior E, EiBS)] Frequenw: FM: 10.7 MHz
FM/SWZSWI/Mmel-Abands SWIMW/LW: 465 kHz [for E, E(BS)]
superheterodyne lamp, 5, Ems SW2/SWI/MW(AMI: 455 kHz [except E, eras
Sensitivity: FM: 13 dB ipra.)

Tuning Range: FM: 88 to 108 MHZ [except E, EiBS)!
FM: 87,510 108 MHz [for E, EiBSTI
SW: 6) 18 MHz [for E, EIBSH
SW2: 7m 22 MHz [except E, EiBSll
SW1: 2.3m 7 MHz lexcept E, EIBSII
MWIAM): 530 to 1,605 kHz
LW: 150 (o 285 kHz [Tor E, E(BS)]

5 dB (max)
SW: 30 dB (pra.I [for E. EIBSH
15dB (max) [forE, EiBSl}

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.

HIGH PERFORMANCE PORTABLE CREATIVE SOUND SYSTEM

July 1988 YOKOHAMA WORKS
_-_-_J