Hitachi HRD-MD58 Service Manual
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HRD-MD58
[ES, VS, KS, ZS, VK, BS, SA, EW]
= HTY-38300
Il Y-8600
CONTENTS
SPECIFICATIONS
DISASSEMBLY
......
ADJUSTMENT
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EXPLANATION OF NEW PARTS
...
PRINTED WIRING BOARD
..........
CIRCUIT DIAGRAN
..........
BLOCK DIAGRAM
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EXPLODED
VIEW
(Cabinet)
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esa seetesss
(Cassette chassis)
.....
WIRE LAYOUT DIAGRAN
.......
at
REPLACEMENT PARTS LIST
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ceeeeee
=]
=
W
(nl
{nn
IRS)
SAFETY PRECAUTIONS
SPECIFICATIONS
@ GENERAL
MW(AM): 522—1,611 kHz (@ kHz steps)
(except EW)
Power supply:
AC: 220V, 50 Hz (for ES, VS, KS, ZS, VK)
AC: 240V, 50 Hz (for BS, SA)
ni ate Sot ene
AC: 110—120V/220—220V/230—240V,
Sensitivity:
EM: 1.32V (13 ; Bt)
BOlEO Hz for EW!
MW(AM): 40 je (SIN 2648)
Power consumption:
280W
LW: 400 ; Vv Aa /N 26 dB)
Dimensions:
370(W) x 284(H) x 285(D} mm
:
.
Weight:
88 kg
;
(for ES, VS, BS, VK)
S/N ratio:
FM: 72 dB(mono), 68 dB(stereo) (IHF)
@ AMPLIFIER SECTION
63 dB (mono), 58 di (stereo)
Power output (Bothchannels
50 W/ch + 50 W/ch (8 ohms, 1 kHz, T.H.D.
(IEC, unweighted, 0-pe ak)
driven):
0.7%)
60 dB (mono), 55 di (stereo)
Tota! harmonic distortion:
0.05% (at 1/2 power output)
(IEC, weighted, Q-pak )
Input sensitivity/impedance:
PHONO: 3mV/47 kohms
MW(AM): 50 dB
(except W.Germany and Italy)
FM selectivity:
60 dB (+300 kHz)
3.5 mV/47 kohms
Stereo separation:
40 dB (1 kHz)
(for W.Germany and Italy)
(except W.Germany andita By)
AUX: 90mV/22 kohms
Antennas:
FM: External antenna
(except W.Germany and Italy)
(75 ohms, unbalaned)
120mV/22 kohms
MW(AM)/LW: Loop antnne or external
(for W.Germany and Italy)
antenna
Load impedance:
Speaker: 8 to 16 ohms
TAPE DECK SECTION
S/N ratio (IHF A network):
PHONO: 70 dB
Track system:
4tracks 2 channels ster
AUX: 76 dB
Recording system:
AC bias
@ TUNER SECTION
Tape:
Normal, Chrome (CrO2),Me tal
Reception frequency:
FM: 87.50—108.00 MHz (50 kHz steps)
Frequency response:
Normal: 40— 14,000 Hz
MW(AM): 522—1,611 kHz (9 kHz steps)(for EW)
CrOz2: 40— 15,000 Hz
530—1,710 kHz (10 kHz steps)(for EW)
Metal: 40— 16,000 Hz

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Enrico Lai
July 11, 2025

come collegare il giradischi allo stereo

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