Hitachi HA-7700 Serviceanleitung Seite 12
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BLOCK DIAGRAM
- BLOCK SCHEMA
- SCHEMA
(for U.S.A. &
(except U.S.A.
Canada sets only)
& Canada sets only)
[PHONO 74
fF TAPE 17
p TAPE2 4
TAPE2DIN
2
REC/PLAY
1 (MC-MM)
2
GND
TUNER
AUX
PLAY
REC
"o
REC
PRE OUT
MAIN
IN
o 9 8
; tt.
8
e
=
Equalizer
-—,__
Y
eres
|
=
S
MC Head Amp.
Amp.
mi
=
Volume
Tone amp.
\
|
| 4 Control
34
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we
4p
/
ia
Tape
|
li
|
|
y
Hag iitet meee ay os i
; '
Monitor
Balance
/
Phono Selector sw.
\]
!
oe
i Contro!
d ae
/
ue
i
ee
ee
=o
RAS
Mode sw.
Low Filter sw.
Muting sw.
Function sw.
Tone sw.
Main Amp.
|
p
Speaker sw.
A Speaker
—&-—-
a
|
Direct coupling/
B Speaker
Condenser coupling sw.
Relay
Pot
t
poe
Headphone jack
si
|
Y4—
4¢
|
, 7
Ps
Z
5
Protection
P
sw.
ircuit
+ {DC
stabilized | , 7
"D "
AC 120-V 60 Hz
circui
— <«—] power source
4 ok
K¢
L
i
~120 V/220 V/240 V 50/60 Hz
Pi
be |
i
As
1
d
i UNSWITCHED
=
Ae
"\/
100 W MAX.
q Be
tq
SWITCHED
(for U.S.A. & Canada sets only)
TOTAL
100 W MAX.
~«<
"
.
(for U.S.A. & Canada sets only)
PRIMARY CIRCUIT DIAGRAM
(FOR ASIA & LATIN AMERICAN
COUNTRIES)
VOLTAGE
SELECTOR
OFF
Te
120V
(OFF
Volt
ue
F:li5 "E2
ACl20V
T2.5A
250V
AC220/240 | Tl.25A
250V
cool
~
6.01p450V
\
|20V
\
220V
'N
coo2
\
:
aay
0.01p450V
>
First stage
Second stage
te Ns
Second
First
OFF
POSITION
stage
stage
aa
~— Rear plate
PRINTED WIRING BOARD - PRINTPLATTEN
- PLAN DE BASE
: Other]
—B
> Earth,
MAIN
AMP.
P.W.B.
The circuit symbol ( -#@l-) means a fuse resistor. When replacing it with new one, refer to the CAUTION on page 14.
Das Schaitsymbol
( -wta-) steht fur Schmelzwiderstand.
Beim Austausch bitte Seite 14 ZUR BEACHTUNG
nachlesen.
Le symbole de circuit (-tm+) signifie qu'il s'agit d'une résistance a fusible.
Consulter les instructions "ATTENTION" de la
page 14 pour effectuer son remplacement.
=
~
'
-)
i
i
|
Blue
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Pop
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m
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a
teen =
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baa
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eliow oS
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loge
0
pret
S
Q
z
tet
8
s
N
o
8
a
=
£8~-
eV
oOsyv
(2L)i'd
2S MS
Aapioy,
&
ode.
m
=
a
>
8
w
aa
uv
reer
>
fo)
pen P
Z
g
:
3
9
A
2
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5
z
n
mM
pul
0
|
=
2
Oo
$e i ND
Red
a
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XR N
7
if
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Green
|
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ba
ee
aD
i
he
cy
Blue
|
yoann
Nana
SWRA
Hid
—=
>
vu
#6
8
g
board.
This
number
matches
the number
in the circuit
2.8
diagram.
oan
SRE
Di
i
ghee
ie Anschlussklemmen
sind auf der gedruckten Schaltung
=
v2
numeriert.
Die Nummern
stimmen mit den Nummern
im
&
2
Schaitplan iiberein.
o
9
Le N°
4 indicati
2
8
e
de borne correspond 4
indication de la plaquettea
2
3
circuit
imprime.
Ce numéro
correspond
au
numéro
du
3
schéma de montage.
$
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