Onkyo TX-7430 Service Manual page 7

Quartz synthesized tuner amplifier
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TX-7430
Pin No
.
Code
Descrlpri
on
11
MUT-2
Muting sig na l out put terminal for T A PE-2 cha nge- o ve r ''\-'1'' during 200mS
change-over
tim
e
loTAPE-2
Select or
sig na l
o
u t pu t
te
rminul
for VCR-2
cha nge -o ve r
"L" during 200mS aftcr pu
shing
rcmote
control
VCR-2 KEY
12
VCR-2
13
VCR -1
Select
or
sig na l
o
u tp u t terminal for
VCR-I
ch a nge- ov c r
"
L " during 200mS afr
er
pu
shing remote
control VCR
-1
KEY
14
C
D
Select
o r
CD changc-over sig na l outpur terminal
"
L" during 200 mS aft
cr
pu
shing
remot e
control
C
D KEY
Select
or
PHONO
change- over
sign
al
out put terminal
"L" during 200mS after pu
shing
remote co u t ro l PHONO KEY
Select or
sig n a l
o
u tp u t
terminal
for TUNER cha nge -o vc r
"L" during 200mS aftcr pu
shing
renr
ote
control TUN
ER
KEY
Selcct or
sig na l
o
u tp u t
terminal
forT A
PE-I
ch a nge- o vc r
"
L " during 200mS after pu
shing remote
cont
rol
TAPE-I KEY
Select
or s
ig na l
o
u tpu l terminal for TA I'E-1
c
ha nge -o vc r
Swit
ching
of
"
J-I"
+->
"
L " by mcans
o
f
rem o
te
co
nt ro ! TA
PE-2
K
E
Y
GND terminal
R
cmote
control sig na l input terminal
TAPE-20N/OFF control
input terminal
1'-2 outpur is
changed-ovcr
wiih
"L"
input
Pror
e eti on
function input terminal; with
"
J-I " input , out put SI' CTL
"
H "
Power
so
u rce condiiion input terminal
; connc ct s
to POWER output
;
POWER ON with
"
H"
15
PH
16
T
U
17
1'-1
18
1'-2
21
G
N D
22
REMIN
23
T
-2CTL
24
PROTECr
25
C
O NT IN
2
6
POWER
Power
so
u rce control outpur terminal
Switching of "H"
+->
"L" (ON
=
"H
")
27
STBY
--
T
erminal for inclication
during STANDI3Y
;
POWER
reversing o
u tp u r
Output
terminal
for stnrt of
selector
"
L "
c1uring
300mS wh
cn pow er so
u rcc
is
ON
O
u t pu t terminal
for
back up during
STANDI3Y
Speaker
control o
u t p ur terminal
("L"
=
s
pe a ke r o u tp u t
O
N )
28
INIT
29
B
.
UP
30
SP
CTL
31
M
.
OFF
M ain p
ow er sourcc
OFF d
et cction termina
I
Serial s
ig na l outpur
termin al for
CD
co
n t ro l
usc
Cassett
e
deck controi signal
o
u tp u r
terminal
"H" during 200m
S
aft er pu
shing
rern
or e conrrol
REW KEY
33
C
D MO D E
35
REW
36
Fr
-
C
asse ue d
eck
control sig na l
o
u t pu l te r m ina l
"
H " tluring 200mS after pu
shing
rern
or c
cont
rol
rr
K EY
C
as se tte d
e ck control
signnl
o
u tp u r terminal
"
H " durin
g
200 m S
a
fte r pu
shing rem or e
cont
rol
REC KEY
C
assc tte deck
control
signal
o
u tp u t terrninnl
"H" ehrring pu
shing o
f rcin
or c
co
n t ro l ST O P K
EY
Ca
ssett e deck
control signal
o
u tp u r
terminal
"/-I" timin
g
200mS after pu
shing
rem
ote
cout
rol
PAUS
E
K EY
Casse t te c1eck
control
sig n a l
o
u tp u r
termin al
"
1-1 " durin
g
200m
S a
fte r pu
sh ing
renr
ot e
cont
roll'LA
Y KEY
37
REC
38
STOI'
39
PAUSE
40
PLAY
41
V
on
Power so
urce terminal
Ccrami
c
re
sonator connccti on
terminal
42
E
xtal

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