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Technics ST-CH505 - Integrated Circuit Terminal Functions

Technics ST-CH505
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ST-CH505
@
Functions
of IC
Terminals
©1C801
(M38173M6245F)
for
(E)
(EG)
areas/(M38173M6252F)
for
(GN)
area
Terminal
Terminal
1
GR
re)
Condensor/resistance
oscillation
terminal
for
fs
|
oro
|
|
Input
for
remote
control
TIMER
an
electronic
failure
detection
ACIN
AC
power
source
input
terminal
for
an
KEY2
i
Operation
(MULT|
CONTROL)
key
signal
electricity
failure/clock
input
/RESET
|
Reset
input
terminal
KEY1
|
Operation
key
signal
input
Power
source
for
pull
up
ISD
i
|
SD
signal
input
for
tuner
Oy.
1
|
(stow
/STEREO
|
STEREO
signal
input
for
tuner
fa]
|
_
—
STB&LATCH|
O
Latch
penal
ootpunte
Mace
IE!)
ane
|
20
|
an
Connected
to
a
seramic
oscillator
jor
system
strobe
signal
output
to
NJU7313
(IC201)
clock
X801
(4.194304
MHz)
31
XOUT
ie)
:
CE
fe)
Chip
enable
signal
output
to
LC7218
(1C
102)
32
Vss
_
Connected
to
GND
CLK
0
Clock
signal
output
to
M62408
(1C301)/
NJU7313
(1C201)/LC7218
(IC
102)
Input
for
MIC
detection
33
MIC
DET
|
,
ay
(Connection:
“L”)
DATA
oO
Data
signal
output
to
M62408
(IC301)/
NJU7313(1IC201)/LC7218
(iC
102)
34
CSi
|
Input
for
chip
selection
DATAIN
{
Data
signal
input
from
LC7218
(IC
102)
|
as
|
CSO
Audio
muting
signal
output
36
/G6
AMUTE
9°
(Volume
of
—10
dB
and
less:
“H”)
t
i
e)
Grid
output
for
FL
display
tube
40
/G10
MUTE
ie)
Main
muting
signal
output
(Normally
“L”)
41
$31
,
13
CLK2
O
|
Serial
clock
output
for
M62408
(IC301)
; ;
Gp
||
Spament
OutpUrter
EE
cisplay
up
56
S16
(Tuner/Amplifier)
DATA2
ie)
Serial
data
output
for
M62408
(IC301)
57
$15
'
B.DATAIN
|
1
|
Data
input
from
bus
;
’
>
|
agent
cutput
for
FE
display
subs
(GEQ)
71
$1
B.CLK
IN
Clock
input
from
bus
72
/G1
e)
Grid
output
for
FL
display
tube
47
|BoATAOUT|
oO
Data
putpet
to
bus
(Normally
“H")
73
Voo
'
5
Vimpression
BUCK-UP
+5
V
impressiot
Clock
output
to
bus
ppg
|
(Normally
“L")
vP
su
—VP
impression
for
FL
dispiay
tubs
POWER
ON
mode:
Output
for
SUR
ON/
D-GNO
—
Connected
to
GND
CHECK
&
OFF
(During
POWER
ON:
“H")
SURR
POWER
OFF
mode:
Demultipter
output
for
76
VREF
=
Standard
voltage
for
A/D
convertor
clock
control
(Connected
to
Vcc)
Power
control
outfut
7
(During
POWER
ON:
“H")
t
Grid
output
for
FL
display
tube
ete
RO
erate
Heat
detection
input
80
(Unusual
situation:
“H")
Audio
muting
2
signal
output
PLOG
fo
|
(Volume
of
—70
dB
and
less:
“H")
Selector
TUNER
output
eee
po
(Output
in
level
“H”)
JOG
B
Rotary
encoder
input
for
main
volume
'
8
t

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