Pin Connection - Kenwood KA-7090R Service Manual

-:-
KA-7090R
CIRCUIT DESCRIPTION
6-2.
Pin connection n con
NO.
NAME
r/o
L:K's__
L:OFF
COMPO/K'S DISCRIMINATION
PORT
H :
COMPO
NN
DESTINATION
1
2
POWER ON
COMPO CLR
K's NC
-o
o
POWER RELAY
ITHMII\AL
4
5
COMPO
REE OUT
K:
y9
N/9ry191
MUTING.3O
o
o
o
6
AUDIO MUTE
o 'MUTING" SIGNAL
oUTPUT
TERMIryAL
HEAD PHONES CONTROL
TER]\NINAL
!
ol.F
H:ON
SERIAL
DATA
SERIAL
BUSY
I
.OTHER
7
I
HEAD
PHONES
1
-s
onrn
1 l
S
BUSY
I
o
r/o
I
tlo
10
V DOWN
o
VOLUME DOWN SIGNAL OUTPU
I
IEHIVIII\AL
- --
----:
----
HrowN
L:oTHER
11
VUP
o
r
(A/D)
VOLUME
UP
SIGNAL UU
II-U
I
I
ENIVIII\AL
s
(KA-7oeoR)
krv
rr.rrur
TERMINAL
-
5-1!Y,
[rrv
rttpur-runrtrltrunl
5 KEYS (K's)
f-
12
KEY
(TACT)
13
SPEAKER SEL
r
(A/D)
SPEAKEH
SELtrt/
lUh
rr\TU
I
I
.)
NATA
14
'.
t f,
-
l o
SEL IC DATA
GEI tc
clocx
SEL
IC
ST
o
o
o
i
sElrcron
tc
DArA
t-_-
H:IDATA
L:ODATA
SELECTOR
IC CLOCK
L:ODATA
SELECTOR
IC STROBE
H:IDATA
17
18
INPUT SEL
V
REF
| (A/D)
I
INPUT
sELEcroR
sw
INPUT/OON
IHoL
ltF{rvrrr\A'-
P/D
REFEBENCE VOLTAGE
OSCILLATOR (8MHz)
OSCILLATOR (8MHz)
GND
+5V
'19
20
21
XIN
X
OUT
VSS
LI
1t
I
l3
vcc
N/C
NOT
USEIJ
H
:
ENABLE
MICROPROCESSOR CHIP ENABLE
RESET SIGNAL INPUT TERMINAL
PROTECTION DETECTION
REMOTE
coNIlgL
NP{rtRMIlt
_
24
c4
--
to
Utr
RESET
-FnorrcrtoN
I
I
27
-IrygTY\-
SOURCE.DIR
B
eni ;Datr nlFl
a
I
28
29
I
I
COMPO
+
NOI UstU
r.
äornnv ENcoDER
B sIGNAL
INPUT TERMINAL
COI\4PO
+
NOT USED
-rI^AN-D
^
CTI:NIAI
II\IPI
IT TFRMINAL
SPB
O
H.ON L:OFF
30
31
32
SPA
CD
DIR
o
K'S
"ULJ,LJIh
r.r.oFtr
L:ON
JO
SOÜRÖE
DIR
o
SOURCE.DIR"LED
CON I
HUL
I
trI-{IVllIUL
L
ON
irouoNESS"
LED
coNTRoL
TERMINAL
H:OFF
H
L'FF
L ON
34
IOÜDNESS
J5
ONiSTANDBY
o
"ON/STANDBY"
LID
UUN
IFI(JL
I
trNIVIII\ÄL
'-Oq"
1
trN/RtrI AY CONTROL TERMINAL
H:OFF
L:ON
JO
INPUT TAPE
o
H:OFF
L:ON
"MD" LED/RELAY CONTROL TERMINAL
37
MD
"CD" LEDiRELAY CONTROL TERMINAL
L
üux' leonrlAY
coNTRoL
TERMINAL
ituueR"
LED/RELAY
coNTRoL
TERMINAL
H:OFF
ea
CD
o
39
40
AUX
o
TUNER
U
41
PHbNO
t_,,
'16
rni-sooz
42
coMPo
8/16
x',
ofsfrr.rnior.fz
I
I
10