Hitachi KH 980 H Service Manual

Page 1

© Hitachi Sales Corp.

4850, 34th Street, Long Island City, NY. 11101

FM/AM 9-TRANSISTOR RADIO
MODEI. KH-980H

SERVICE MANUAL

SPECIFICATIONS

CIRCUIT SYSTEM .
TUNING RANGE.

..9-transistor superheterodyne
..FM 86t5~108Mc
AM 530~1.605kc

INTERMEnIATE

FREQUENCY . ..FM .10.7Mc
AM 455kc
TRANSISTOR COMPONENT
25A435 PM RE Amp.

25A235
ZSASSO

FM Frequency Converter
...FM I.F. Amp. & AM Frequency

Converter

ZSA234
ZSA234
23B75

25877 A F. Amp

ZSB77x2 ...Class--B Push-pull Power Amp.
GERMANIUM DIODE

IN60 ...... ...FM Limiter

INMA AM A.G.C.

1N34A ...AM Detector 8: A.G.C.

DESCRIPTION

1) KH-QSOH operates both on battery and AC power.

2) Block circuit board employed in PM RF. circuit, LF.
circuit and AF. circuit gives the set compact styling and
stable reception.

3) Four mesa type transistors and a drift type transistor
provide high sensitivity.

4) Large sized 3" speaker and the audio output of 350mW
produce rich, clear tone.

5) The set permits you easy handling and easy battery
replacement.

6) Desired tone can be obtained with the tone control.

No. 128 1966. 10
1N60XZ FM Descrirninator
1585 .FM A.F.C.
THERMISTOR
D-ZB ............... .Temperature Conpensator

POWER OUTPUT 350mW (Maximum)

220mW (Undistorted)

.3 RM. Speaker

One. Hitachi magnetic earphone

ISL-216 is provided.

LOUDSPEAKER
EARPHONE JACK

ANTENNA ..................... FM Telescopic antenna
AM Ferrite-core antenna
POWER SOURCE............DC 6V (JIS UM-3 X4, standard

AA" X4 or equivalent)
AC Adaptor (6V) available
CURRENT
CONSUMPTION ...... FM 13mA (With no signal)
AM lomA (With no signal)

DIMENSIONS .................. 3% (H) x 7% (W) X 1% (D)
(97 X 189 x 43mm)
WEIGHT ........................ 1.5 lbs. (600g) including batteries

NAMES OF THE PARTS

TELESCOPJ C ANTENNA
EARPHONE JAC

TUNING CONTROL

AC ADAPTOR SOCKET

ON>OFF SWITCH

a VOLUME CONTROL

TONE SWITCH l
l
BAND SELECTOR