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SAFETY PRECAUTION
The following precautions should be observed when servicing.
1. 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 A, in the schematic diagram and circuit board diagram.
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
Pe
ho
ot
POWER
output
(Both channels driven)
RMS Rated Output power
(Both channels driven)
Harmonic distortion (8 ohms)
(at rated output)
Intermodulation distortion
(at 1/2 rated output)
Power bandwidth
Frequency characteristics
TUNER, AUX, TAPE 1,2
PHONO
Input sensitivity/Impedance
PHONO
TUNER, AUX
TAPE PLAY 1,2
60 watts* per channel,
min. RMS, at 8 ohms from
20 Hz to 20 kHz, with no
more than 0.02% total —
harmonic distortion.
60 Watts
(1 kHz, 8 ohms T.H.D, 0.02%, SINUS)
60 Watts
(20 Hz — 20 kHz, 8 ohms. T.H.D. 0.02%)
0.02%
0.02%
10 Hz- 40 kHz
(8 ohms, T.H.D. 0.05% 1/2 Rated)
20 Hz — 40 kHz ( 7 }9.4B)
30 Hz - 15 kHz, RIAA +40.5dB
(MM) 2.5 mV/47 k-ohms
(MC) 0.25 mV/100 ohms
160 mV/45 k-ohms
160 mV/45 k-ohms
No.326 EGF
CONTENTS + INHALT -SOMMAIRE
SPECIFICATIONS
« TECHNISCHE
DATEN
°«
CARACTERISTIQUES TECHNIQUES
DISASSEMBLY
AND
REPLACEMENT
° ZERLEGUNG
UND AUSTAUSCH
« DEMONTAGE
ET REMONTAGE
BLOCK
DIAGRAM
+ BLOCK SCHEMA
° SCHEMA
PRINTED WIRING
BOARD
« PRINTPLATTEN
°¢
PLAN
DE BASE
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CIRCUIT DIAGRAM
« SCHALTPLAN
-
PLAN
DE CIRCUIT
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REPLACEMENT PARTS LIST « ERSATZTEILLISTE
*
TABLEAU
DES PIECE
FRONT AND REAR
PANEL * VORDERE
UND
HINTERE
BEDIENUNGSTAFEL*
PANNEAUX
AVANT
ET ARRIERE -:--:
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He
eee
dees REC OUT
150 mV
Phono overload level (at 1 kHz) (MM) 120 mV (MC) 12 mV
Signal-to-noise ratio
(IHF, A network)
PHONO
TUNER, AUX, TAPE 1,2
Damping factor
Bass control
Treble control
Subsonic filter
Loudness control
(MM) 84 dB (MC) 66 dB
95 dB
30 (1 kHz, 8 ohms)
+8 dB (100 Hz)
+8 dB (10 kHz)
20 Hz
+6 dB (100 Hz)
+4 dB (10 kHz)
AC 120V 60 Hz
220 V 50/60 Hz, ~240V 50/60 Hz
~120/220/240 V 50/60 Hz
120 W (at 1/10 rated output)
190 W (at 1/3 rated output)
350 W (at rated output)
435 (W) X 83 (Hs xX 290 @) mm
5.7 kg
Power supply
Power consumption
Dimensions
Weight
* Measured pursuant to the Federal Trade Commission's Trade
Regulation Rule on Power Output Claims for Amplifiers.
STEREO AMPLIFIER
July 1982
TOYOKAWA
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