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SAFETY
PRECAUTION
The following
precautions
should
be observed
when
servicing.
1. Since many parts in the unit have special safely related characteristics, always use genuine Hitachi's replacement parts.
Especially
critical
parts
in the
power
circuit
block
should
not
be replaced
with
other
makers.
in the circuit diagram
and
printed
wiring
hoard.
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.
Critical
parts
are
marked
with
A
SPECIFICATIONS
Power output
(Both channels driven)
Power bandwidth
Frequency characteristics
Harmonic distortion (8 ohms) (at rated output}
Intermodulation distortion (8 ohms)
(at rated output)
(at 1/2 rated output)
Input sensitivity/Impedance
Signal-to-noise ratio (IHF, A network, short circuited)
Damping factor {8 ohms)
Power supply
Power consumption
Dimensions
Weight
og
2
CONTENTS - INHALT - SOMMAIRE—
SPECIFICATIONS - TECHNISCHE
DATEN -
CARACTERISTIQUES
TECHNIQUES
----- ++ +--+
seer ee eee
FEATURES
- MERKMALE
- CARACTERISTIQUES
-------+----
SERVICE
POINTS - WARTUNGSPUNKTE
-
POINTS
DE
SERVICE
ee
a
el
ADJUSTMENTS - EINSTELLUNGEN
- REGLAGES
---------
DISASSEMBLY AND REPLACEMENTS
- ZERLEGUNG
UND
AUSTAUSCH
- DEMONTAGE
ET REMONTAGE
--:--------+-- 8
PRINTED
WIRING
BOARD - PRINTPLATTEN
-
PLAN
DE: BASE: ® soso
ieee
isin
ota dane aa Paes
9
CIRCUIT DIAGRAM
- SCHALTPLAN
- PLAN
DE CIRCUIT
--- 10
CHECKING THE OPERATION
OF THE
PROTECTION
CIRCUIT - UBERPRUFEN
DES SCHUTZSCHALTKREISES
-
VERIFICATION
DU FONCTIONNEMENT
DU CIRCUIT
DE
PROTECTION
©
8
OSS
Fe
Wa Se
AE
Dale Mee, Oo Bik
er we
Bee
OE
®
11,12
TROUBLE SHOOTING - FEHLERSOCHE -
DETECTION DE PANNES «++ +0 0-02 esses eee neers eee 12,13
BLOCK DIAGRAM - SCHALTPLAN -
SCHEMA
DE
CABLAGE
ah 8 i, RAN
MN
ORE
dos. owe
© RRR
Ae @ Rw
alee ee
14
REPLACEMENT
PARTS
LIST - ERSATZTEILISTE -
TABLEAU
DES PIECE
FRONT
AND
REAR
PANEL:
VORDERE
UND
HINTERE
BEDIENUNGSTAFEL - PANNEAUX
AVANT
ET ARRIERE
---: 19
100 watts* per channel, min. RMS, at 8 ohms from
20 Hz to 20 kHz, with no more than 0.005%
total
harmonic distortion.
100 W/ch + 100 W/ch (8 ohms, 1 KHz, T.H.D. 0.005% SINUS DIN Rule)
120 W/ch + 120 W/ch (8 ohms, 20 Hz ~ 20 kHz, T.H.D. 0.005%)
;
130 W + 130 W (8 ohms 1 kHz, T.H.D. 0.5% IEC)
150 W + 150 W (8 ohms 1 kHz Dynamic Power)
200 W (8 ohms, 1 kHz, T.H.D. 0.005%, BTL connection)
5 Hz — 100 kHz (8 ohms, T.H.D. 0.05% 1/2 Rated)
0.5 Hz ~
100 kHz (+0, —1 dB)
Less than 0.005%
Less than 0.008%
Less than 0.005%
1 V/47 k-ohms
118 dB
100 (1 kHz),
60 (20 Hz — 20 kHz}
AC 120 V 60 Hz, ~ 220 V 50/60 Hz
120 V/220 V/240 V ~ 50/60 Hz
280 W (at 1/10 rated power)
450 W or 550 VA {at 1/3 rated output)
750 W (at rated output}
435(W) X 165(H) X 320(D) mm
15.8 kg
* Measured pursuant to the Federal Trade Commission's Trade
Regulation Rule on Power Output Claims for Amplifiers.
SPECIFICATIONS
AND
PARTS
ARE
SUBJECT
TO
CHANGE
FOR
STEREO POWER AMPLIF
nn
September
1983
IMPROVEMENT.
IER
TOYOKAWA
WORKS
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