VIDEO 1
AV AUX
(FRONT)
VIDEO 4
VIDEO 3
VIDEO 2
VIDEO 1
COMP
VIDEO
PLAY
COMP
REC
VIDEO
Q611,612
BA7626F
IC61
Q621,622
OUT
Q623
(OSD)
1Vp-p/75
(VISUAL)
VIDEO 1
VIDEO 2
VIDEO 3
VIDEO 4
(FRONT)
AV AUX
REC
PLAY
(S1-VIDEO)
1Vp-p/75
MONITOR OUT
Q643
Q653,
Q655
Q642
Q641
VIDEO 1
Q651,652
BA7626F
IC65,66
CD1
VIDEO1
VIDEO2
VIDEO3
VIDEO4
MD/TAPE1
TAPE2
VIDEO1
VIDEO3
VIDEO2
VIDEO4
AVR
IC8
+5.7V
GND
D17-20
FINAL TR.
FINAL TR.
GND
PRE DRIVE
GND
PRE DRIVE
D2
D1
Q100
RELAY
DRIVER
-17V
GND
+17V
D3-6
Q2
AVR
Q1
+5.0V
GND
Q16
AVR
D13-16
Q7
AVR
-35V
FIL
FIL
STROKE SW
Q8
RELAY
DRIVER
AC OUTLET
D9
K6
T1
AVR
IC5
CD1
L3,R3
L2,R2
L1,R1
L8,R8
L7,R7
L6,R6
L5,R5
L5,R5
MONITOR
L6,R6
MD/TAPE1
L4,R4
L3,R3
IC2
BUFFER
REC OUT
L1,R1
L8,R8
L7,R7
IN
L2,R2
LINE
BUFFER
IC3
TUNER
2.5mV/
PHONO
IC6
IC5
IC4
IC1
EQ
(ANALOG)
INPUT ATT
IC1
BUFFER
DAC
DIR
IC3
21kHz LPF
21kHz LPF
21kHz LPF
21kHz LPF
IC11
IC21
IC31(1/2)
IC31(2/2)
SUB
CENTER
LS,RS,
FL,FR
CONFIG-2
IC12,13
FILLTER
TONE OFF
L7,R7
L6,R6
L5,R5
L2,R2
TONE
IC41
IC42
L1,R1
L8,R8
L3,R3
VOLUME
VOLUME
VOLUME
VOLUME
IC16
IC26
IC36(1/2)
IC36(2/2)
Q352
Q251,252
-20dB
Q351
Q151,152
ATT
-20dB
ATT
-20dB
ATT
-20dB
ATT
IC37
(2/2)
(1/2)
IC27
IC17
AMP
Q15
Q13,14
Q11,12
MUTE
MUTE
MUTE
A-MUTE
MUTE
Q253-256
Q353,355
MUTE
Q354,356
MUTE
MUTE
K5
K4
K2
POWER
AMPLIFIER
POWER
POWER
K3
RELA
Y
A
RELA
Y
CS
RELA
Y
B
A-MUTE
S-MUTE
SW
-MUTE
FRONT
SW
L,R
FRONT B
C
LS,RS
PHONES
L,R
FRONT A
SPEAKERS
PRE OUT
1.0V/1K
u-COM
IC71
CONTROL
REMOTE
A91
PROTECTION
S1 DETECTOR
V MUTE
SP.RELAY
SW MUTE
S MUTE
A MUTE
200mV/47K
200mV/2.2K
IN
OUT
OTHER
IC15
AMPLIFIER
AMPLIFIER
DIGITAL
PHONES
1.3Vrms/32
S1
CD2/TAPE2
PLAY
IN
AV AUX IN
(FRONT)
REC
OUT
COAXIAL
IN
OPTICAL
IN
(2/2)
IC32
L,R
+5.7V
IC62
AVR
4.7K
PHONO
Q153-156
1.1Vrms/32
A2
A1
L4,R4
MONITOR
Q3,4
Q1,2
654
IC37
C
LS,RS
A/C
CONVERTER
CS4226
DSP
SRAM
IC51
IC52
X51
IC56,57
-6dB
ATT
IC32
(1/2)
L4,R4
TUNER
8
AUDIO SEL.
3
DPS
10
DIR DAC,ADC
9
TONE.VOL. 3
20dB ATT
3
6 (J TYPE)
OUT
IR REPEATER
J85
IN
IR RECIEVER
J84
OUT
IR RECIEVER
J83
IR LED
REMOTE OUT
D571-574
SYSTEM
J81
SYSTEM
CONTROL
J82
TEXT
SL16
FL
ED1
LEDx7
FL
MI-COM
IC91
38kHz
FILTER
856,857
Q851,852,
455kHz
FILTER
Q853-855
CONTROL
IC72
REMOTE
MI-COM
X8
RX
BUSY
TX
DATA,
D30
D10
AVR
IC54
+3.3V
AVR
J
K,Y,M,X
20.0V/4
24.5V/6
K,Y,M,X
J
5ch SP. OUTPUT
DETECTOR
S1
IC67
J1
J2
-20dB A
T
T
K1
V-MUTE
Y
C
C
Y
Y
C
C
Y
C
Y
V-MUTE
Y
C
C
Y
+
+
+
SE-RLY
+
+
+
POWER-RL
Y
to
u-COM
to
POWER
SELECTOR
to
SRAM
CODEC
VOLUME
-3dB A
T
T
-6dB A
T
T
-144
R141
ST
RST
CK
DI
DO
51
to
u-COM
FL
TONE
TUNER
PRE AMP
to DSP
to
to
VIDEO
SELECTOR
u-COM
EACH
INPUT
C-TERMMNAL
VR-3080
(X09)
(X08)
(X09)
(X09)
KRF-V7772D
(X08)
(X05)
(X08)
(X08)
(J TYPE)
(X08)
(SIGNAL STAGE)
(u-COM STAGE)
KRF-V7772D/VR-3080
5
BLOCK DIAGRAM
KRF-V7772D(K)
COVER1,1(
99.10.29
10:11
AM
y[W
10
