KDC-9090R
2
BLOCK DIAGRAM
PLL+B
FM+B
AM+B
DIMMER
MUTE
2W
A
Y
DET
.
AC
C
SRM
B
U
DET
.
SRM
DRIVER
A8V
SER
V
O
DC/DC
SW5V
B
U5V
P CON
ANT
-CON
MUTE
DRIVER
4.5V PRE
MUTE
E's
PO
WER IC
IC4
u-COM
IC1
CD
CH
IC7
IC10-12
Q37-42
IC5
IC2
F/E
MECHA
E-V
OL
PRE OUT
SP-OUT
DIMMER
TEL-MUTE
AC
C
ANT
-CONT
P-CON
BA
CK UP
DECORDER
RDS
IC14
IC8
Q14
Q15
Q31
Q26-29
Q1,2
Q3
Q51
Q9
Q30
IC15
IC2
IC1
IC3
EX.AMP CONTR
OL
AV
R
DC/DC
BO
X
P
ANEL u-COM
RESET SW
RESET IC
VFD
(GRAD
A
TED)
REMO
G/R SW
SPEANA
IC16
B
UFFER
Q36
NOISE
PRE OUT OUTPUT
V
O
LT
A
G
E
SPEANA
A
GC OP
AMP
CONTR
OL
EX.AMP
NA
VI-MUTE
P
ANEL 5V
4.5VPRE
Q4-6
Q7,8
IC6
DC/DC
REG
KEY MA
TRIX
BFP
IF+B
SW14V
IC4
IC5
RO
M
REG
3.3V
CH
S-METER
QUA
L
SER
V
O+B
MUTE R
M ST
OP
SW2
LO/EJ
MUTE L
M RST
SW3
SW1
MS D
A
T
A
MS CLK
A8V
BU
5
V
SW5V
RST
REQ C
CLK
CH-CON
DA
T
A
H
REQ H
CD
AM
FM
MUTE
PRE MUTE
MC REQ
P ANEL RST
SC REQ
MC CLK
SC DA
T A
MC DA
T A
RESET
SRM SW2
SRM SW3
SRM DET
SRM SW1
RDCK
RDDA
QUA
L
SDA
SCL
AFS
AFS
S-METER
A8V
+B
-B
+B
-B
SCL
SD
A
S-METER
SW5V
DA
T
A
C
BA
CK UP
P
A
NEL 5V
P
A
NEL 5V
FA
C
FL+B
750mV
4500mV
CHANGER
AM
4.5V PRE
2250mV
FM
230mV
1200mV
1200mV
251mV (E
TYPE)
470mV (K
TYPE)
IFC OUT
A
UDIO OUT
SW5V
NOISE
IFC OUT
4500mV
CD
K TYPE
MODE
4500mV
4500mV
1069mV
1715mV
E TYPE
3600mV
600mV
1800mV
3600mV
K TYPE
E TYPE
3600mV
1372mV
855mV
3600mV
1.8V PRE
SRM SUB-
SRM SUB+
DRIVER
MUTE
BU
5
V
MO SW
Q52
B
UFF
FL(GRAD
A
TED) TYPE
(X13-997)
(X13-994)
