Technics SH-E7 Service Manual

17 18 19 20 21 22 23
Mi SCHEMATIC DIAGRAM
(This schematic diagram may be modified at any
I1c52
time with the development of new technology)
C80 330P
N
3
OV ig
We des 3
ov a) E re
L
Nb
OV c
a
> = b
D76 bs 8 c
iSS119 ze T° OW y
S e
lov f
58V_ g
‘a 49v_ >
UP
EQ LEFT LEVEL CONTROL
DOWN
cameo
u
zs _S58 FLAT
ami
Ds!
—1—
S51
63Hz
—1—
$59
63Hz
MAI
67
eS
$52
160H
st
D52
mr
z
==
S60
I60Hz
MAI6T
py
o-
o>
Oo
©
053
~~
553
400Hz
—1—
S6!
400Hz
MAI6T
py
seine;
0:
SO
054
=
S54
IkHz
~~
S62
IkHz
MAI67
Oo
OO
1
Oo
°°
sg
——
—t—
$63
055
$58
2
SkHz
2.5kHz
MAI67
2
1
OO-
5
a
pater)
056
S56
6
3kHz
at
S64
63kHz
MAl67
°
l
Dt
p57
—t—
S57
I6kHz
~+—
565
16kHz
+P}
Bt
Dt
16 —
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MICRO COMPUTER ihgfedcba 2
| oo
| (15) 2324) 1%) 4 Notes:
CT?
R3) 330P il al | 4 1,.S1 : Power switch in “‘on’’ position.
ane die a rT C76 330P ——— | 2.S51~S57_ : EQ level ‘‘up’’ controls at each frequency (Lch).
a8
C78
E
Tt
|
=
cee
|
|
a
=
3.
$58
:
Equalizer
mode
(EQ
on/flat)
switch
in
“off’’
position(Lch).
eo
330%
_-
epson
TT
Ey
Sao
4.S59~S65_
;
EQ
level
‘‘down’’
controls
at
each
frequency
(Lch),
b=
et]
C72
330P
ed
ghij}kimn
»b
5,
S67
:
Display
mode
(EQ/spectrum)
switch
in
“off”
position(Lch).
c C71 330P —~ 6.S77~S83_ : EQ level “up” controls at each frequency (Reh),
d-
‘
c70
330P
7.
S84
:
Equalizer
mode
(EQ
on/flat)
switch
in
‘‘off”
position
(Rch).
: b 8.S86~S92 ; EQ level “down” controls at each frequency (RchO’
9 - c q hi 9, S93 : Equalizer plus switch in ‘off’ position.
eae h d f 10. S94 : Display mode (EQ/spectrum) switch in “off” position (Reh).
De i : EQ RIGHT LEVEL CONTROL 11. S95 : Memory switch in “off” position.
Hl uP DOWN PRESET MEMORY (I~6! 12.S96~S$101 : Preset memory switch (memory 1 ~6).
e
60
1
$77
63H
—1—
$86
63Hz
—1—
$95
MEMO
13.
$102
:
Reverse
switch
in
‘‘off’’
position,
|
oO
O0
oS
oO
Oo
R96
10K
Be
|
i
4
ew
stn
+
=
—
14,
Indicated
voltage
values
are
the
standard
values
for
the
unit
measured
by
Wn
MAI67
VEO.
;
s
it
:
2)
os
gi
the
DC
electronic
circuit
tester
(high-impedance)
with
the
chassis
taken
as
fe
Me
062
~+—
$79
400H2
—+—
$88
400Hz
—1~
$97
M2
standard,
Therefore,
there
may
exist
some
errors
in
the
voltage
values,
c MAI67 1 : t ca | depending on the internal impedance of the DC circuit tester.
ps 063 BG S80 IkHz BS S89 kHz 5 +a S98 M3 15. Important safety notice:
+—¢ b d tT MAIGT 1 1 Z ] Components identified by AAmark have special characteristics important
R30.
10K
064
ASB
2.5kHz
mat
_S90
2.5kHz
=.
_s39
M4
,
c 5 { MAI67 oO] oF for safety. When replacing any of these components, use only manufacturer’s
:
065
6*s.
at
6.3kHz
57
G-S9l,
63kHt
5
G-S00
MS
specified
parts.
MAI67 yt
f 8 16. Source signal
x
066
$83
I6kHz
S92
(6kHz
~+—
_sior
M6
9 io)
Ps ae a = aa == rm f — eee <=> _ Spectrum analyzer signal
8 D67 3S ~ ~+— sw2 REV
as Maier L 4 Puus come —{}— +B and —B voltage lines
068 ~1— s94 SPA
Ps MAI67 Oy 1EQ
+>
oe
~
x“
os
Ls t « 2 CAUTION:
} 25 ai z= al ie This lithium battery is a critical component (Type No.
i Sol oa °syT ee BR2325-1VC. Mfrd by Matsushita Battery Industrial
ee
Es
ed
cae
ees
:
a Co., Ltd.). Please observe for the proper polarity and
Lawn — p the exact location when replacing it and soldering the
= replacement lithium battery in.
IC5i
HO6 140428644
MICRO COMPUTER ihgfedcba
LITIUM PARISTO!
N
et
eBeiseo
3
Pariston
saa
vaihtaa
ainoastaan
saman
valmistajan
nN ; .
Se = a tL saman tyyppiseen paristoon.
zen Lt casuaee 8 Pariston virheellisesta kasittelysta syntyy
ah it Goes rajahdysvaara.
G9) c8i 330P
VARNING:
Detta litiumbatteri (av typ Nr. BR2325-1VC, tillverkad av
Matsushita Battery Industrial Co., Ltd.) ar en kritisk
komponent. Var sdker om att iaktta korrekt polaritet och
exakt lage av litiumbatteriet under erséttning och lédning
av ersattningsbatteriet.
ADVARSEL:
Lithiumbatteriet er en vigtig komponent (type nr BR2325-
1VC. Fremstillet af Matsushita Battery Industrial Co., Ltd.).
Husk rigtig polaritet og placering ved udskiftning og nar De
lodder det nye lithiumbatteri fast.
ae 4S

Technics SH-E7 Specifications

General

Brand	Technics
Model	SH-E7
Category	Stereo Equalizer
Language	English