KRF-V4550D/V4550DE/V4550D-S
3
LINE BUF
PHONO EQ
TUNER
AK4527
LPF
LPF
LPF
LPF
x2
x2
x2
x1
M62446SP
6ch E. VOL
with 2ch
TONE CONT.
x0.5
BUF
IC113
+20/0dB
+B HIT
AP
-B HIT
AP
+B LOWT
AP
-B LOWT
AP
VIDEO2
(VIDEO2/MONI.)
VIDEO1
CD
PHONO
MD
/TAPE
MONI
PLAY
REC
OUT
Lch
H, P, Rch
H, P, Lch
Rch
Cch
SWch
SP-A
AC IN
MUTE
+5V
A.V.R
for
u-COM
+15V
A.V.R
A.V.R
-15V
+5V
+7V
-7V
A.V.R
5V
for E. VOL
u-COM
for FIL AC
(AUDIO & VISUAL)
TUNER etc.
for AMP (HI TAP)
for AMP (LOW TAP)
for RELAY SW
J1
IC601,602
SWITCHED
D101
D103
D41
IC103
IC104
-30V
Q54
IC51
IC2
IC15
Q7
Q8
Q13
Q1
Q2
Q14
Q11
Q12
Q17
Q5
Q6
IC114
for INPUT SEL.
CIRCUIT
(1/2)
(2/2)
(1/2)
(1/2)
(2/2)
(2/2)
IC111
IC111
IC112
IC110
IC110
IC112
6ch INPUT
DVD
SUB
#S5
#S2
DIG
#S4
R,L
MIX
#S3
LS,RS
#S7
NOSUB
ANA
#S1
REC OUT BUF.
IC107
ANALOG REC
DIGITAL REC
D102
A.V.R
for
DIR etc.
A.V.R
3.3V
IC46
J75
DSP
Lch
Rch
Cch
LSch
RSch
SWch
IC45
for DSP
A.V.R
5V
J1
J1
K1
K2
K4
LSch
RSch
J2
J7
IC101 or
IC102 or
CODEC
(ADC&DAC)
AK4110
IC5
A1
J3
OPTICAL
CD/DVD
COXIAL
COXIAL
DIGITAL
IN
AUDIO
DIGITAL
RECEIVER
6ch INPUT
DVD
AUDIO IN/OUT
20dB AMP
IC105
(VIDEO2/
MONI.)
VIDEO1
/MD
TAPE
(VIDEO2
/MONI.)
MONI.
/12dB ATT
6dB/9dB
IC14
TACT KEY
MAIN
u-COM
IC1
RDS
IC4
LED
ENCODER
FL
BU1923F
HNA-11MS24
ED1
SYNC
DIR
for DSP. AD/DA.
ANALOG 6ch
INPUT SELECTOR
LFE
DA
AD
2
BYPASS
SW
C
LS,RS
L, R
L, R
L
R
C
LS
RS
SW
C
LS/RS
L/R
+
+
+
+
+
+
+
4700uF
4700uF
3300uF
470uF
2200uF
3300uF
2200uF
+
2
IC2
2
2
(X07)
(X14)
(X08)
BLOCK DIAGRAM
