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Technics SU-V2X - IC401 (Analog Function Control) Terminal Functions; IC401 Input;Output Terminal Details; IC401 Analog Control Timing Diagrams

Technics SU-V2X
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Mi
FUNCTION
OF
TERMINAL
1C401
(Analog
function
control)
Input/Output
Active
Description
of
terminal
Output
H
Indicater
‘muting’
light
up
at
“H”’.
OV
x2
Not
used
in
this
unit.
PO3/x
1
Input
;
Push
(once)
the
Selection
of
input
It
detects
the
level
of
pin
G).
P20/PSTB
Output
ov
Ctock
output
port
for
analog
switch.
Clock
signal
output
to
[C201
pin
a)
and
1C202
pin
(5)
during
data
transmission.
[Refer
to
ES)
P21/PTOUT
Output
Push
(once)
the
Selection
of
input
Indicater
‘‘rec
selector”
light
up
at
“H”.
“ree
selector”
HANAN]
nuit
42”
selector
aos
Vv
P22
Output
Data
output
for
analog
switch.
Data
signal
output
to
1C201
pin
and
1C202
pin
.
[Refer
to
EY)
P23
Output
Strobe
output
port
for
analog
switch.
Strobe
signal
output
to
1C201
pin
@®
and
1C202
pin
()
during
data
transmission.
(Refer
to
EY]
P60
P61
P62
Output
Rec
side
indicator
3-bit
output.
Rec
indicator
drive
signal
output
to
1C403
pins
(3)
~
45).
(Refer
to
El]
P63
Input
Stop
mode
sensing
input.
4.4V
With
high
pulse
signal
input,
the
stop
command
is
executed
and
OV
the
mode
is
shifted
to
standby.
Power
switch
“OFF
cli
External
clock
oscillation
frequency
(400kHz)
input
port.
[Refer
to
fq]
CL2
Vpp
RESET
Input
termina!
for
reset
signal.
Not
used
in
this
unit.
Power
switch
“ON”
Power
switch
“OFF’’
4av—}
|
WwW
Ov
Ov
P10
Pil
P12
P13
Power
supply
input
terminal.
(Apply
4.4V)
Input
terminal
for
key
return
signal
from
external
key
matrix.
[Refer
to
[J]
P50
P51
P52
Output
Output
terminal
for
key
scan
signal
for
external
key
matrix.
(Output
voltage
is
4.4V)
P53
Output
Muting
signal
output
during
input
switch
or
Rec
switch
operation.
ow”
ov
Push
the
each
input
selector
or
muting
switch.
POO/INT
Input
4
H
=
Function
1
mode
L
=
Function
2
mode
The
input
of
this
unit
is
‘‘H’’
(4.9V)
because
the
mode
used
is
Function
1.
Mode
shifting
port.
P40
P41
Output
Input
side
indicator
3-bit
output.
Input
indicator
drive
signal
to
1C402
pins
(3)
~
(5
.
[Refer
to
GB)
ey
fe}ic401
@
2v
DiIv/1
wSEC
Ground
terminal.
Oo
Push
the
rec
selector
switch.
(“rec
indicator”
blinking)
@
Push
the
each
input
selector
switch.
L=0V,H=4.3V
Input
selector
Fs
L
L
H
phono
L
L
H
L
tuner
Lt
H
L
L
cD
video/aux
H
L L
L
video/aux
tape
2
L L
H
r
L
tape
2
tape
1/DA
tape
EL
|
L
L
|
H
tape
1/DA
tape
rec
selector
H
L
L
L
Data
of
input
selector/rec
—+
rea
neh
-!C201
or
—-
selector
b+—|165
~
180
ps
C202
Pin
ae
B
® @
Input
selector
|
phono
L L
]
L
25
us
tuner
H
L
L
|
cD
L
H
L
video/aux
-
H H
L
]
75
ps
125
us
tape
2
H
|
ut
|
oH
tape
1/DA
tape
L
L
H
|
rec
selector
L L L
|
25
us
muting
L
eon
I
L
|

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