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No.
55î
EGF
HGE-77
(us, cs,
Bs,
vK, 25,
EW)
SPECtFtCATtONS
.............................................
1
DISASSEMBLY
........................
3
PRTNTED
WtRtNG
BOARD ...............................
5
ctRcutT
DTAGRAM
..........................................
7
BLOCK DTAGRAM
.............................................
I
EXPLODED VtEW
............................................
1
0
REPLACEMENT PARTS
LtST .........................
1
1
CONTENTS
SAFEW
PRECAUTIONS
SPECIFICATIONS
lnput Sensitivity/impedance
INPUT:
TAPE PLAY:
Output level/impedance
OUTPUT:
TAPE
REC:
Power
output:
Total harmonic
distortion:
Gain:
Frequency response:
Signal-to-noise ratio
:
Equalizer center frequencies:
Variable range of
adjustment:
Power supply
voltage:
INHALTSVERZEICHNIS
200mV/45
kohms
200mV/45 kohms
200mV/1 kohms
200mV/1 kohms
3V
(T.H.D.0.1%)
0.OSYI
(2O
Hz-20
kHz
Output
sensitivity)
0dB
10-20
kHz
+1
dB
96 dB
(for rated output,
IHF
A network)
1
0
elements
31.5
Hz,
63 Hz,
125 Hz,
2SO
Hz
500
Hz, I
k{z,2k{z,4kHz,8
kHz,
16 kHz
left,
right
independent
+10
dB
-120V,
60
Hz
(for US),
-240V,
50
Hz
(for
BK)
-220V,
50
Hz
(for
VK,
ZS
),
-
1 1
OV
t22OV t24OV,
50/60
Hz
(for
EW)
TABLE
DES
MATIERES
Power
consumption:
Dimensions:
Weight:
Accessories
Side
wood
Side
wood
installing screw
................
Side
wood
installing
washer
........................
Side
wood
installing flat spring washer
Connecting pin cord
15W
370(W)
x
85(H)x
276(D)
mm
400(W)
x
85(Hlx
276(D)
mm (With included
side
wood
panels)
3.3
kg
3.7 kg
(With included
side
wood
panels)
2
4
4
4
2
*
All value given
in
this specification
refer
to equalizer
in
the "flat,' condition
For
the purpose of improvement, design and specification
are
subject to change
without
notice.
The
following
precautions
should be
observed
when
servicing.
1' Since many parts
in
the unit
have special safety-related
characteristics,
always use genuine
Hitachi
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 circuit diagram and printed wiring
board.
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
wiîhout danger of
electrical
shock.
SPECIFICATIONS
AND
PARTS ARE SUBJECT
TO CHANGE
FOR IMPROVEMENT
GRAPHIC
EQUALIZER
April
1987
TOYOKAWA
WORKS
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