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Technics SH-E7 Service Manual

Technics SH-E7
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W@
FUNCTION
OF
Ic
TERMINAL
e
Microcomputers
IC51
and
IC52
(HD614042SG28)
e
Microcomp
Function
Function
Symbol
‘S
Symbol
Output
Output
R42/SO
——_
Communication
data
output
with
E70
only.
FL
meter’s
all-band
grid
output.
1C56
(LC4066B)
contro!
signal
output
with
E70.
FL
meter’s
function
grid
output
R43
For
E80,
H:
LED
Rec
off
and
L:
LED
Rec
on.
3
D13
Not
used
in
E70.
LED
control
signal
output
with
E80
H:
LED
monitor
A,
L:
LED
monitor
B
R70
_
A/D
conversion
data
bit
0
output.
FL
meter’s
scale
(+12
~
—12)
segment
output
when
EQ
R71
A/D
conversion
data
bit
1
output.
is
on,
4
D14
A/D
conversion
data
bit
2
output.
4
5
6
A/D
conversion
data
bit
3
output.
7
A/D
conversion
data
bit
4
output.
ee
8
10
—12dB
segment
output
to
FL
meter.
D15
ROO
+12dB
segment
output
to
FL.
meter.
R01
+10dB
segment
output
to
FL
meter.
A/D
conversion
data
bit
5
output.
RO2
+8dB
segment
output
to
FL
meter.
A/D
conversion
data
bit
6
output.
RO3
+6dB
segment
output
to
FL
meter.
i
—_———
—__-.
A/D
conversion
data
bit
7
output.
R10
+4dB
segment
output
to
FL
meter.
Input
of
MEMo
key,
preset
memory
1
~6
key,
reverse
key,
and
rec/source
key.
R11
+2dB
segment
output
to
FL
meter.
Input
of
EQ
level
down
key,
EQ
plus
key,
and
R12
spectrum
analyzer/EQ
key.
OdB
segment
output
to
FL
meter.
R13
—2dB
segment
output
to
FL
meter.
Input
of
EQ
level
up
key,
flat
key,
and
display
mode
key.
R20
—4dB
segment
output
to
FL
meter.
R21
—6dB
segment
output
to
FL
meter.
MCU
reset.
17
PD3
R22
—8dB
segment
output
to
FL
meter.
OSC2
R23
—10dB
segment
output
to
FL
meter.
Input
to
internal
oscillator.
18
RAO
A/D
input,
high
withstand
voltage.
A/D
input,
high
withstand
voltage.
+
Not
used
in
1C51.
Clock
output
to
IC51
with
IC52
Output
power
supply
(—32V)
for
high
withstand
voltage
19
RA1/Vdisp}
terminals(D4
~
D12,
D14,
D15,
ROO
~
RO3,
R10
~
R13,
R20
~
R23).
Grounding
c
1€300/1C400
(LC7522)
electronic
volume
control
data
output.
20
R30
Power
switch
on/off
detection.
H:
on,
L:
off.
1C300/1C400
(LC7522)
electronic
volume
contro!
data
21
R31
Model
check.
H:
SH-E80,
L:
SH-D70
eae
sl"
output.
Input
for
external
interrupt
to
MCU.
H:
Active
mode,
L
:
Stop
mode.
e
m
N
Oo
<i
3
aa
o
3.
Ff
|
ff
22
R32/INTO
Muting
output
at
power
ON/off.
H:
Muting
off,
L:
Muting
on.
23
R33/INT1
|
MCU
check.
H:
IC52,
L:
1C51
Muting
output
to
music
signal.
H:
Mutingon,
L:
Muting
off.
ce
iv)
an
wD
Ww
a~
|
om]
oN
ie)
[op)
Ww
Not
used
in
E70.
1C200
(TC9162N)
DATA
control
24
R50
output
with
E80.
part
FL
meter’s
63Hz
grid
output.
Not
used
in
E70.
1C200
(TCS162N)
DATA
control
output
with
E80.
25
R51
FL
meter’s
160Hz
grid
output.
10
(19)
Not
used
in
E70.
IC200
(TC9162N)
STROBO
contro!
FL
meter's
400Hz
grid
output.
output
with
Ego.
26
R52
FL
meter’s
1kHz
grid
output.
ll
(12)
Not
used
in
E70.
1Ci00
(L.C4066B)
control
signal
output
with
E80.
27
R53
FL
meter’s
2.5kHz
grid
output.
28
R60
MPX
data
A
output
of
IC603
and
1C503
(MN4051).
FL
meter’s
6.3kHz
grid
output.
29
R61
MPX
cata
B
output
of
IC603
and
1C503
(MN4051).
FL
meter’s
16kHz
grid
output.
30
R62
MPX
data
C
output
of
17603
and
1C503
(MN4051).
Pag
fe
r
IC56
(l.C4066B)
contro!
signal
output
with
E70.
|
31
R63
LED
contro!
signal
output
with
E80.
16
32
Vcc
5V
power
supply.
17
iz
1C54
(LC6528C-3189)
remote
control
data.
18
|
a3
R40/SCK
|
Communication
data
clock
input
(Communication
Communication
data
clock
output
with
E70
only.
available
with
E70
only).
—
=a
®
‘Sy
5
>
c
3
ion
=
1C54
(LC6528C-3189)
remote
contro!
data.
i’
34
R41/S1
Communication
data
input
(communication
available
|
with
E70
only).
|

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Technics SH-E7 Specifications

General IconGeneral
BrandTechnics
ModelSH-E7
CategoryStereo Equalizer
LanguageEnglish

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