Kenwood KRF-X7775D Service Manual page 5

VIDEO SECTION
(X13- )
IC605
IC601 IC603 75ohm DRIV
SEPARATE Y
6dB AMP
VIDEO1
VIDEO2
VIDEO3
VIDEO4
AV AUX
DVD/6ch
IC602 IC604
IC606
NONE NONE
75ohm DRIV
SEPARATE C
CRAMP CRAMP
6dB
VIDEO1
VIDEO2
VIDEO3
VIDEO4
AV AUX
DVD/6ch
IC21
(X11- ) 75ohm DRIV
COMPOSITE
6dB AMP
VIDEO1
VIDEO2
VIDEO3
VIDEO4
AV AUX
DVD/6ch
IC22
6dB AMP 75ohm DRIV.
B SOURCE
PAL
X13,IC701-703 or X35,IC1-3
NTSC
COMPONENT
Y
PB/CB
VIDEO3
PR/CR
Y
PB/CB
DVD
PR/CR
(X13- ) / (X35- )
(X11- )
EQ 200mV
TAPE2 MON1
IC1
PHONO IN
LINE
2.5mV
(38dB) IC28
BUFFER
FM AM
TUNER
200mV
MD/TAPE1 IN
OFF -3dB
ON -6dB
CD2
CD2/TAPE2 MONI
CD1 IN
CD-R IN
VIDEO1 IN
VIDEO2 IN
VIDEO3 IN
VIDEO4 IN
(X25- )
AV AUX IN
IC5
ZONE B
LINE BUFFER
IC22
200mV
ZONE B
L.R
200mV INPUT SEL.
SL.SR
DVD
6ch IN 200mV
CENTER
36mV
SUB
ZONE A
(0dB or +6dB)
INPUT SEL. DIG REC OUT
DIG REC
BUFFER
Q1,2
ON
IC4 IC32
CD2/TAPE2 REC
MUTE
TAPE2
Q11,12
REC BUFFER
MUTE
REC OUT SW
OUTPUT MUTE
MD/TAPE1 REC
CD-R REC
VIDEO1 REC
VIDEO2 REC
VIDEO1 REC
MUTE
MUTE VIDEO2 REC Y OUT
MONITOR
MUTE
L601(K/P/J)
L602(OTHERS)
TRAP
VIDEO1 REC
MUTE
MUTE VIDEO2 REC C OUT
MONITOR
MUTE
BPF
L601(K/P/J)
L603(OTHERS)
VIDEO1 REC
MUTE
MUTE VIDEO2 REC
ZONE A
OUT
MUTE
MONITOR
ZONE B
MUTE MONITOR
4.43MHz
X35
DECODER
IC5
3.58MHz
Y
Cb MONITOR OUT
Cr
OUTPUT MUTE
IC23
ATT OFF
INPUT ATT
MAX:1.0Vrms
(0.-3.-6dB) BUFFER
IC7 IC6 IC31
BUFFER (-6dB) FL.FR
IC11
ADC DIR
DSP
ATT ON
IC8.9 X08 CENTER
IC17 SUB
(X08- )
X08 IC32
X08
SL.SR
EP ROM
IC14
(X08-) , (X25- )
DIGITAL INPUT SEL.
X08 IC33
COAXIAL
VIDEO2 SDRAM
OPTICAL
X08 IC34
COAXIAL
VIDEO3
OPTICAL SDRAM
COAXIAL
VIDEO4
OPTICAL
COAXIAL
DVD(6ch IN)
OPTICAL
COAXIAL
CD X08
OPTICAL
SBL.SBR
IC20
COAXIAL
MD/TAPE1
OPTICAL
COAXIAL
CD-R
OPTICAL
COAXIAL OUT
OPTICAL OUT
IC26 BUFFER
IC27 (2/2) BUFFER
IC27 (1/2)
BUFFER
(+15dB)
u-CON CONTROL
X25,ED1
FL
X25,1IC
RELAY COMTROL
FL DRIVER
TV POWER SENSOR
SL16 TEXT
X13,IC3
SYSTEM CONTROL
RS232C
TUNER
MAIN u-COM
RDS
ANALOG SW
ZONE A SEL.
ZONE B SEL.
REC OUT SW
INPUT ATT
DIG.ANA.SEL.
TONE ON/OFF
TONE CONTROL
X08,IC43
VOLUME CONTROL
MUTE CONTROL
PRE ZONE B
PRE S.SB
SUB u-CON
SP SL.SR/B
FL.FR.C.SW
OUTPUT
SUB-MUTE
SP RELAY CONT.
RELAY A
RELAY CS
RELAY B
RELAY POWER
IC24
ANA TONE OFF
IC23
TONE
IC34
ANA ON
TONE
(0dB)
CONFIG-2 DIG
FILTER
SW OFF
TONE IC8
50kHz LPF
IC12,13 OFF
FL.FR
DAC
VOLUME
DIG
(0dB)
SP B
SW ON IC10
50kHz LPF
IC18,19
CENTER
CENTER
DAC
VOLUME
(0dB)
50kHz LPF
IC15,16
SL.SR
SL.SR
DAC
VOLUME
(0dB)
IC12
50kHz LPF
IC21,22 IC35
SBL,SBR
SBL.SBR
DAC
VOLUME
(0dB)
1kHz LPF
IC18,19 IC10
SUB
SUB W
VOLUME
(0dB)
IC6
ZONE B
VOLUME
6ch IN
SL SR
6ch IN
CENTER
6ch IN
SUB
6ch INPUT SEL.
IC24
AUDIO SECTION
POWER SUPPLY
X13,Q41
+6V 1st AVR
for DSP UNIT
LED DISPLAY
X13,Q45
+6V 1st AVR
KEY MATRIX
for VIDEO UNIT
X13,Q33,34
DOOR MOTOR CONT.
17V AVR
RF/IR RECEIVER OP AMP
VOLUME MAIN TRANS
ANALOG SW
IR IN/OUT A
TONE CONTROL
X07,D100
IR TRANSMIT
u-COM 60V SUPPLY
for POWER AMP
IR IN/OUT B X07,Q407
-35V AVR
for FL V-LOAD
FAN DRIVE
FL FILAMENT
OUT POWER DET.
X13,D71
THERMAL SENSOR
+30V for
RELAY POWER
RELAYS & FAN
I/V PROTECT DET.
X13,Q51
-15V 1st AVR
for u-COM
DSP UNIT
X13,IC1
ADC
DIR
5.6V AVR
DSP
SUB TRANS
BACK UP
DAC
FAST OFF
EP-ROM
IR RECEIVER
DIG.INPUT SEL.
VIDEO SELECTOR
(X07- )
OUTPUT MUTE
Q1,2
AMPLIFIER
IC9
MUTE
(5.2dB or 15.2dB) (29dB)
Q101 AMPLIFIER
IC11
MUTE
(5.2dB or 15.2dB) (29dB)
Q51,52
ZONE B AMPLIFIER
IC13
MUTE
(5.2dB or 15.2dB) (29dB)
Q301-320
MUTE
MUTE
MUTE
IC36
MUTE
(5.2dB or 15.2dB)
IC11
MUTE
(4.7dB or 14.7dB)
IC7
MUTE
B SOURCE
(14.5dB)
VR-5080/5090/5700/5900
KRF-X7775D/X7775D-S/X9995D/X9995D-S
THERMAL SENSOR
AC IN
K5
PHONES
K1
L.R
K4
A-SPEAKERS
C
K3
SL.SR
K2
B-SPEAKERS
ZONE B-SPEAKERS
(X25- )
L.R
C
SL.SR
PRE OUT
SBL.SBR
1V
SW
ZONE B