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KRF-V7020D/V8020D/VR-307/309/357
6
BLOCK DIAGRAM
LINE BUF
PHONO EQ
X05
IC16
NJM2279M
CS4226
LPF
LPF
LPF
LPF
x2
x2
x2
x1
M62446SP
6ch E. VOL
with 2ch
TONE CONT.
x0.5
BUF
STK411-230
STK410-030
+20/0dB
+B HIT
AP
-B HIT
AP
+B LOWT
AP
-B LOWT
AP
CD
COXIAL
OPTICAL
VIDEO2
IN
DIGITAL
VIDEO3
VIDEO2
VIDEO1
CD
PHONO
TAPE
/MD
MONI
PLAY
MONI
/MD
TAPE
VIDEO1
VIDEO3
VIDEO2
VIDEO1
VIDEO1
MONITOR
S-VIDEO IN
REC
OUT
Lch
H, P, Rch
H, P, Lch
Rch
Cch
Lch
Rch
LSch
RSch
SWch PRE OUT
SP-B
SP-A
AC IN
+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
for
u-COM
for FIL AC
(AUDIO and VISUAL)
TUNER etc.
for AMP (HI TAP)
for AMP (LOW TAP)
for RELAY SW
TC9163
TC9164
A1
J1
IC6(1/3)
IC7(3/3)
IC7(1/3)
IC7(2/3)
IC6
IC8
IC6(2/3)
VIDEO (Y)SEL
(NOT for K,P TYPE)
Q1
SWITCHED
S1
D1,4
D2
D5
IC1
IC2
-30V
IC13
Q2
IC1
IC2
IC8
(2/2)
IC8
(1/2)
IC9
IC7
IC5
IC11
Q3
Q4
Q7
Q5
Q6
Q8
Q9
Q10
Q13
Q11
Q12
IC4
IC3
2.0V/2.2K
SWch
PRE OUTPUT
CXP82852-139Q
u-COM
INPUT SEL.
TUNER
TC9162
D1-4
(1/2)
(2/2)
(1/2)
(1/2)
(2/2)
(2/2)
IC10
IC10
IC12
IC11
IC11
IC12
SP. OUTPUT
5CH. SP.
28.3V/8
COXIAL
VIDEO3
SUB
S5
S2
DIG
S4
L,R
MIX
IC10
S3
LS,RS
S7
NOSUB
ANA
S1
REC OUT BUF
IC9
S1
S2
S3
S4
S4
S5
S6
S7
S8
S1
S2
S3
IC6(3/3)
ANALOG REC
S7
DIGITAL REC
S8
Q43
Q44
D3
A.V.R
for
for DSP
A.V.R
3.3V
IC14
6dB ATT
MUTE
SYNC
AC3 DECODER
SUB DSP
B
A
A
B
YSS902
YSS902
SDIBSEL=0
SDIBSEL=1
(VISUAL IN/OUT)
S5
S6
DSP
IC1
Lch
Rch
Cch
LSch
RSch
SWch
NJM2279M
IC17
VIDEO (C)SEL
AD/DA etc.
for DSP
-5V
A.V.R
IC19
A.V.R
IC18
5V
IC12
for DIR.
A.V.R
5V
NJM2279M
VIDEO SEL
IC4
MONITOR
VIDEO 1
VIDEO 1
VIDEO 2
VIDEO 3
VIDEO OUT
VIDEO IN
200mV/2.2K
200mV/47K
OUT
IN
2.5mV/27K
(AUDIO IN/OUT)
PHONO
OTHER
KRF-V8020D,VR-209
USED
K1
S-VIDEO OUT
1Vp-p/75
0.286Vp-p/75
C
Y
S-VIDEO IN/OUT
(VISUAL IN/OUT)
1Vp-p/75
VIDEO IN/OUT
IC51
LFE
DA
AD
2
2
BYPASS
SW
C
LS,RS
L, R
L, R
L
R
C
LS
RS
SW
DIR
C
LS/RS
L/R
+
+
+
+
+
+
+
4700uF
4700uF
3300uF
470uF
2200uF
3300uF
2200uF
+
2
LR
LS,RS
C,LFE
L,R
C,SUB
C,SUB
L,R
LS,RS
C
Y
Y
C
Y
C
Y
C
Y
C
KRF-V7020D/V8020D
(X00)
(X08)
(X09)
(X08)
VR-307/309/357