Hitachi TRK-W330/HC Service Manual

HITACHI
SERVICE
CONTENTS
SPECIFICATIONS
DISASSEMBLY .
DIAL CORD STRINGING
ADJUSTMENT .
LUBRICATION
MAINTENANCE .
PRINTED WIRING BOARD
CIRCUIT DIAGRAM
WIRING DIAGRAM
BLOCK DIAGRAM
EXPLODED VIEW
(Cabinet)
(Cassette chassis TRK-W330)
(Cassette chassis TRK-W350)
REPLACEMENT PARTS LIST
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
replacement parts. Especially critical parts in the power circuit block should not be replaced with other makers.
Critical parts are marked
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.
SPECIFICA TIONS
• RADIO SECTION
Circuit System :
Tuning Range:
intermediate
Frequency:
SPECIFICATIONS
RADIO
October
MANUAL
.
..... ............
with
in the circuit diagram and printed wiring board.
FM/AM-2bands superheterodyne
[for H, HCl
FM/SW/MW/LW-4bands su perheterodyne
[for E,
FM/SW2/SW1/MW-4bands
superheterodyne [for W, W(UN), W{UNS),
AUI
FM: 88to 108 MHz [except E, E(BS)]
FM: 87.5to 108 MHz [for E, E(BS)]
SW: 6to 18 MHz (for E,
SW2•. 7 to 22 MHz (for W, W(UN), W(UNS),
SWI : 2.3 to 7 MHz [for W, W(UN), W(UNS),
MW(AM): 530 to 1,605 kHz
LW: 150 to 285 kHz [for E, E(BS)]
FM: 10.7 MHz
SW/MW/LW: 468 kHz [for E, E(BS)]
SW2fSW1/MW(AM): 455 kHz [except E,
AND PARTS ARE SUBJECT
CASSETTE
1987
TY
TRK-W330
TRK-W350
TRK-W350
TABLE
CARACTÉRISTIQUES
DÉMONTAGE
CHE-MINE-MENT DU CORDON
RÉGLAGE .
LUBIFICATION
ENTRETIEN
10
PLAN DE BASE
16,17
PLAN DE CIRCUIT
19—23
SCHÉMA DE CÄBLAGE
24
SCHÉMA
25
VUE EXPLOSEE
(Coffret) .
26
(Chässis de Cassette TRK-W330) .
27
(Chåssis de Cassette TRK-W350)
28
TABLEAU DES PIÉCES
. 29
Sensitivity:
Antennas:
(Aerials)
TO CHANGE
TAPE
YOKOHAMA
No. 577
H,HC,
W(UN), W(UNS), AU
Chassis
DES MATIERES
TECHNIQUES
D' ACCORD
.. .....
.. .................................
FM: 15 dB (pra.)
10 dB (max.)
SW: 34 dB (pra.) [for E,
22 dB (max.) [for E, E(BS)]
SW2: 38 dB (pra.) [for W, W(UN), W(UNS),
28 dB (max.) [for W, W(UN), W(UNS),
: 50 dB (pra.) [for W, W(UN), W(UNS),
AOI
40 dB (max.) [for W, W(UN), W(UNS),
AUI
MW(AM): 50 dB (pra.)
40 dB (max.)
LW: 55 dB (pra.) (for E,
46 dB (max.) (for E, E(BS)]
FWSW/SW2: ROD. antenna
FOR IMPROVEMENT.
RECORDER
WORKS
EF
W,
.2
4
.5
.. 11
15
15
16,17
19—23
24
. 25
. 26
. 27
.28
29
Built in ferrite antenna