JVC RX-D302B Service Manual page 24

Block diagram
Audio/Video signal input and system control section
IC530,IC533
Y SEL.
Y
IC531,IC534
PB SEL.
PB
IC532,IC535
PR
VCR IN
PR SEL.
DVR/DVD IN
MONITOR
DVD_C,DVD_SW,DVD_SL/SR
DVD C/SW
DVD SURR
DVRREC_L/R
DVR_L/R
DVR OUT
DVR/DVD IN
VCRREC_L/R
VCR_L/R
VCR
IN/OUT
TV_L/R
DBS_L/R
TV
DBS
TU_L/R
TO
T_MUTE
TUNER
TU_DATAIN
TU_DATAOUT
TU_CLK,TU_CE
EEPROM
RC_SDA
IC501
RC_SCL
CPU
RC_WP
HP_RELAY
AV
AVCLINK
COMPULINK
C IC522
DBS
SY SEL.
VCR OUT
IC524
Y
IC525
VCR IN
SC SEL.
DVR OUT
IC527
CV
CV SEL.
DVR/DVD IN
CV_OUT
SY_IN,SC_IN
MONITOR
CV_IN
SY_OUT
SC_OUT
VIDEO7
CN581
CN591
CN592
CN582
SY_OUT,SC_OUT
SY_OSD
IC536
SC_OSD CV_OSD
IC537
SW &
YOUT,COUT
AMP
Y/C separate section
2-1
Y/G OUT
B-Y/B OUT,R-Y/R OUT
Y OUT
SY_OUT
SC_OUT
PB OUT
VIDEO1
PR OUT
VIDEO10
VIDEO11
IC502
L,R
6CH
SW
BD_DA
BD_CL
DA,CL
S_MUTE
SBWR_MUTE
MUTE
L,R
IC507
DSP_STATUS
DSP_READY
DSP_COMMAND
DSP_CLOCK
DSP_RESET
HP_RY
Q524
BCHANGE1
BCHANGE2
VIDEO1
VIDEO4
VIDEO7
FAN_ON/OFF
TA/TC_SDA
FAN_L
TA/TC_SCL
C OUT
PROTECT
FREQ_CTRL
Y OUT
D+5V,B+5V
+/-7V,+9V
A+5V(DSP)
D+5V(DSP)
CV OUT +5V(VIDEO)
+12V(RELAY)
TA/TC_SDA
TA/TC_SCL
CN583
CN593
CN594
CN584
IC559
CLOCK
IC551 GEN.
DIGITAL
CKIN
Y/C
SEPA.
Use control keys, system control and FL display section
CN509
TA/TC_SDA
IC561
TA/TC_SCL
COLOR
DECODER
Volume section
IC504
L,R
AMP
DVD_SW
DVD_SL/SR
DVD_C
IC503
6CH VOLUME
DA,CL
DA,CL
DSP_L/R
DSP_C,DSP_SW
DSP_SL/SR
AUDIO SOUND
DSP_SBL/SBR
PROCESSOR
CN521
CN683
DSP and digital signal input terminal section
DSP_L
DSP_R
IC611 to IC614
AMP.
PD_DD
RST_DD
IC621,IC622
A2+/- to A4+/- 96K/48K
IC632 to IC634
B2+/- to B4+/-
182K/96K
IC651,IC652
DSP_IN_L
AMP.
IC601
DSP_IN_R
IC602
AMP.
DSPSTATUS,DSPREADY
DSPCLK,DSPRESET
DSPCOMMAND
USB wireless
DIGITAL
module section IN1
LAN MODULE
DIGITAL
IN2
CN12 CN13
IC11
DIGITAL
DIGITAL AUDIO
IN3
TRANSMITTER
CN11
D+/-,VBUS IC903
USB
TERMINAL
HEADPHONE_DET
CN914
AVC_IN/OUT
AV COMPULINK
Q910
M_COMMAND,M_STATUS
M_CLK,M_RESET,M_BUSY
M_CS,BLUE_LED
AM_LED,FM_LED,USB_LED
JS901
TV_LED,DBS_LED,DVD_LED
JS902
VCR_LED,DVD_MULTI_LED
VOL1,VOL2
D916 to D923
JOG1,JOG2
Master clock section
M_CLOCK
FREQ_CTRL
IC211 to IC214
Master clock GEN.
-B, -B+12V
Q444,Q445
-B+12V REG
SUBWFR
SUBWOOFER
OUT
MUTE
S_MUTE
SBWR_MUTE
IC508
IC681
IC682
DIGITAL AUDIO & DSP
D/A
CC_DATA,CC_CS
D/A0,C_LRCK
CC_CLK,CC_RST
C_BCK
C_LRCK
S_LRCK
LIN+/-
IC667
C_BCK
RIN+/-
S_BCK
8CH
D/A0 to D/A3
CDIN
CODEC
CDOUT DATA,XTAL
CCLK,D_CS
D_RST
IC661
DSP
GPIO1
GPIO2
RX0
MOSI
GPIO3
MOSO
GPIO4
SS,HREQ
DSP_RST
RX1
IC673
IC671 MICK
CPU INV
RX2
RX5 RX4 TX
CN662 CN661 UN686
DIGITAL OUT
CN961
USB_IN
D/A
HP_L
HP_R
HEADPHONE
SEG1 to 35
DI901
GRID1 to 15
FL
KEY_IN1
DISPLAY
KEY_IN2
KEY_IN3
IC901
S901 to S906
CPU
REMOCON IC902
&
IR DET.
FL
DRV.
STANDBY_LED
F1,F1
D907
-VPP
STANDBY D+5V
LED
Regulator, DC
AM
AM
M_CLOCK
FREQ_CTRL
PROTECT
FL,FR,C
SL,SR
SBL,SBR
M_C
+/-7
SCK
FREQ_C
PROTEC
Lout_HP
Rout_HP
RY300
HP_RY
FAN_ON/OFF
FAN_LOW
Q151,Q
Q154
Q153
FAN
TO
+12V_F
FAN
REG