Hitachi HA-4700 Serviceanleitung

@HITACHI
SERVICE
SPECIFICATIONS
SOwatts• per chanr*l,
(Both drW•n)
RMS. at 8 Ohms
20 kHz. with
0.02% total
distortion
50 Wich + 50
1 kHz. T.H.D. 0.02%)
SO W/ch
1 kHz. T.H.D.
5 HZ—70 kHz (8 ohms. 1/2
Rated T.H.O.
TAPE
10 HZ—70 kHz
RIAA *0.5
rated ou.ut)
Less than 0.02%
Ot In au.ut)
Les than 0.02%
dw•tion
Less then 0.03%
MM 2.5 mv (47 k.ohms)
MC 0.15 mV (100 ohms)
TUNER. Aux
150 mV/47
TAPE PLAY
150 mV/47
TAPE REC OUT
150 mv
220 mV
FEATURES
1. Wide-und, low-distortion design for best sound quality
2. Equalizer cirmait with high sensitivity and SIN ratio
3. LED powerindication
4. Power supply section with a powerful punch
MANUAL
(HA-4700)
HA-4700
HA-3700
min.
35 watts • per channel. min.
20 Hz to
RMS •t 8 ohms frot"
no then
20 kHz. with no
h«monic
0.05% total
distortion.
(8 ohms.
35 W/ch + 35
1 kHz. T.H.D. 005%)
+ 50 W/ch (4
3S W/ch + 35
0.02%) 1 kHz. T.H.D. 0.05%)
S Hz—30kHZ (8 ohms.
0.05%)
T.H.D. o.æ%)
-3.0 dB)
10 HZ—SOkHz (+0.5.-3.0
dB RIAA tos dB
Leu than 0.05%
Leg than ODS%
than 0.06%
2.5 mV (47 k-ohms)
k-ohms
I SO mV/40 k-ohms
k«'hms
1 SO mV/40 k-Ohms
ISO mv
1 kHz. T.H.D.
180 mV(at 1 kHz. T.H.D.
001%)
005%)
• Mæsuredpursuant to the FederalTrade Comrnission'sTrade Regulation Rule on
Claims for Amplifiers.
STEREO
July
English
Franeais
Specifications and designs may be changed without noitce for inprovement.
ration (IHF
m Hz to
PHONO
than
TUNER. AUX. TAPE
(8 ohms.
(4
dB)
Power mrm•rnptbn
5. Highly reliable protection circuit
6. Connection facilitiesfor two tapedecks(HA470
7. Connection facilities for two pairsof speakers
8. Sleek and chic design
AMPLIFIER
1980
HA-4700
HA-3700
No.
HA4700
A
90 dB (MM) 73 dB (MC. input
80 dB
level 0.25 mv)
105 dB
100 dB
40 (1 kHz,80hms) 40 (1 kHz. 8 ohm'
dB (100 HZ)
dB (100 HZ)
dB (10 kHz)
dB 110 kHz)
dB (100 Hz) +6 dB 1100 Hz)
+4 dB (10 kHZ) +4 dB (10 kHZ)
20 HZ 20 Hz
5 ICs. 67 transistors •nd 71 3 'cs. Sl
diodes (24 LED') diOd% 114 LEOs)
AC 120 V 60 —220 V
AC 120 V 60
50/60 HZ. —240 V 50/60 Hz 50/60 HZ. --240 V50,'60
or —120 v/220 v/240 V
or -120
50/60 Hz
50/60
310 VA, 270 W (at 113 rated
output)
430 W (Ot rated output)
300 W (at
435 (W) x 83 (H) x 326 (O) 435 (W) x 83 (H) '299
mm (for U.S.A. and
mm
435 (W) x 83 (H) x 299 (D)
mm (for Europe and Australia)
435 (W) x 83 {H) x 334 (0)
(for Asia •nd Latin
American countries)
6.3 kg 5.4 kg
206
(HA-3700)
HA-37)0
and
-220 V
Hz
V/220 V240 V
HZ
W (at 113 rate
(D)
Output