Download Print this page

Technics SH-E7 Service Manual page 6

Stereo graphic equalizer

Advertisement

@ BLOCK
DIAGRAM
(L ch)
Q4
REMOTE
SiN
CONTROL
REMOTE
| 1C202 |
CONTROL
L_out
OPERATION AMP.
(12.3V) (-12.4V)
/ connectors
J106, J108).
'
6
by
O)
BUFFER AMP.
om
(12.3V) (-12.4V)
GRAPHIC EQUALIZER
1,9
5
O
O
SOURCE IN (O
=<
tf O
pane
BAND LEVEL CONTROL
_——_—
r
3
hee
| 4 =
18
(Zev)
Bh
'
| O—GB)
Q2,3
¢8)
Y
|
|
DI6,15,29
(-77V)
4
CB)—*6
'
@Push
(5.7V)
We
4B)—*4
CONTROL
CIRCUIT
Lead wires
C.B.and
SOURCE
OUT
Q204
ee
-
MUTING
|
SWITCHING |
COMP HOT:
peseulad BNARIZER
7ch MULTIPLEXER
B.P.F
(16KHz
(7.6V)
aaa
|
D500~506
@)
AF AMP.
"1
63Hz
C8)
a)
=>
16OHz
vitch P.C.B.
es
ey
, e
5]
400Hz
| kHz —_o-<s
2.5kHz
DC
CON-
Means,
SPECTRUM
ANALYZER
B.P.F.
(63Hz, 160Hz, 400Hz, 1KHz, 2.5KHz, 6.3KHz)
fo ooo
eee el
13
\O
14
—tho-
O
N
xa
15
—*t_o-
O
NS
12
O
XN
—_
—1o<6
O
5.8
ee
6.3kHz —*t_oxg
_
=
|
I6kHz
Fs
l
4-6
[=z
4
Z
ial
-—-#@
BINARY 8-1
DECODE
FL DRIVE
© CLOCK SIGNAL
MICRO COMPUTER
(R ch)
CSS
SS
49
RESET
MUTING®
Y
REMOTE
REMOTE
MUTINGS
TING
osc
GavatOh EPgaeot
!
CONTROL
INPUT
OUTPUT — OUTPUT
|
1
O
es
ea
aoe
oe
1
15
16
!
CONTROL J 51
!
BEMGTE
pee
ee
a
c
|
CONTROL CLOCK INPUT ©
b
d
REMOTE
A34
é
b
!
CONTROL DATA INPUT
l
CONTROL SIGNAL >
d
xl
a
0
CLOCK
OSC
1
osc inpuT{¥si
TIS ERER OS
I
fe
L
oe
eee
ee
ie
oe
nil
SWITCHING
MICRO COMPUTER
49
© RESET
DATA SIGN
37
a
5!
OSC INPUT ?
AL
REMOTE
CLOCK INPUT®
A/D
CONVERSION
DATA
INPUT
Note:
(—®=—)
: Source signal
(==>) : Spectrum analyzer signal
SEGMENT
OUTPUT
KEY SCAN
OUTPUT.
GRID OUTPUT
19
©
28h DATA A
29
KEY SCAN
SPDATAB
ecae
DATAC
33
FL2
SPECTRUM ANALYZER/
GRAPHIC EQUALIZER
DISPLAY
32
d
o¢—@
|
NM
A
|
4
ZI\
|
rh
|
|
tht MEMORY
|
Te
BACK-UP CIRCUIT
|
|
|
FUNCTION
KEY-MATRIX
ee
ed)
Q53
REMOTE/OFF

Advertisement

loading