JVC RX-F31S Service Manual page 19

Block diagram
Audio/Video signal input/output
(Component/DVD multi) section
MULTI_SL/SR
5.1ch
MULTI
IN
MULTI_C
MULTI_SW
1270_SDA
VCONT10
1270_SCL VCONT9
Y
IC352
IC351
REC_SY REC_SY
CV
Y/C AMP IC362
SY
CV
& SEL
SEPA.
CKIN
C
IC360
IC359
IC353
REC_SC
CLOCK
AMP
SC
OSD_SY
GEN. & SEL
OSD_SC
VCONT10
OSD_SIN
OSD_SCLK
OSD_CS
CN514 CN516
CN536
CN526
CN504 CN506
SY
IC553
VCONT1 Y/C
SC
VCONT4 MIX
REC_SY/SC
Y/C IN
CV_IN
CV IN/OUT IC555
SEL
Y/C IN
CV_OUT
VCONT1
CV IN/OUT
VCONT4
Y
SY
IC551
IC552
Y/C IN C SC
Y/C SEL
CV IN/OUT
CV
M_OUT_CV
Y IC451
Y OUT
Y SEL.
PB IC452 PB OUT
PB SEL.
PR IC453 PR OUT
VCR IN
PR SEL.
VCR/DVD IN VCONT1
MONITOR OUT
DVR_RECL/RECR
DVR IN/OUT
DVR_L/R
L,R
VCR_L/R
IC502
DBS_L/R
6CH
TV_L/R
SW
VCR IN/OUT
TU_L/R
VCR_RECL/RECR
DBS/TV IN
MOUT_L/R
MONITOR OUT
RC_SDA
IC507 RC_SCL
EEPROM
TO
MUTE
TUNER
TU_DATAI,TU_DATAO
TU_MUTE
TU_CLK,TU_CE,TU_MUTE
AV_LINK
AV_COMPULINK
System control and audio/Video signal input/output section
Vol. control section
IN.L
IC503
IN.R
CN525 CN521
6CH
SBWFR OUT
SMART SETUP L/R
C_RELAY VOLUME
SMART SETUP C S_RELAY
SMART SETUP SL/SR
F_RELAY
SMART SETUP SB
SB_RELAY
DA,CL
DSP_L/R,DSP_C,DSP_LFE
DSP_SL/SR,DSP_SB,IN.L,IN.R
SBWFR OUT
CN611
VCONT8 IC504
DSP and digital signal input terminal section
AMP
DSP_L,DSP_R
SEL DSP_LS,DSP_RS
DSP_C,DSP_LFE
DSP_SB
IC356
IC357
DSP_IN_L
OSD AMP
SUBWOOFER
DSP_IN_R
DSP_STATUS
& SEL
OUT
DSP_READY IC601,IC602
DSP_RESET
DSP_COMMAND
DSP_CLK
RX0
DIGITAL
IN1
RX1
DIGITAL
IN2
IC554
RX2
DIGITAL
AMP
IN3
& SEL
TH1,TH2
LIMITTER
TX
DIGITAL
VCONT5 DA_PROTECTOR
CLK_F_CONT OUT
REG_SAFETY
POWER
User control keys, system control and FL display section
HP_RELAY
HP_SW
B_SW1
B_SW2
SEG1 to 35
IC401
GRID1 to 13
CPU
&
FL DRV.
VIDEO+9V
VIDEO+5V
B+5V,A+5V
D+5V,+5V
BLUE_LED
TU+9V
+7V,-7V
DI401
MCLK,M_CS
+S2B
M_COMMAND
FL
M_STATUS
DISPLAY
M_BUSY
M_RESET
STANDBY_IND
BLUE_LED
KEY_IN1 to 3
LED_DIMMER1
LED_DIMMER2
Q403,Q411
DIMMER
TH1,TH2,LIMITTER
CONT.
DA_PROTECTOR
CLK_F_CONT
REG_SAFETY,POWER
CN401
HP_RELAY,HP_SW
B_SW1,B_SW2
FAN
Regulator 2 section
Q532
TO
FAN_L
Q533
FAN
IC501
Q211,Q212
Q536 MOTOR
CPU
D+5V REG.
Q226
BLUE_LED
LED_DIMMER1 VIDEO+5V
LED_DIMMER2
REG.
AV_LINK,M_CLK
M_COMMAND Q227
M_STATUS,M_CS
VIDEO+9V
M_BUSY,M_RESET
REG.
Q202
9.0V REG.
Regulator, PWM modulator, digital power amplifier
and low pass filter section
IC508
AUDIO
SOUND
CPU
PWM_L/R
FL,FR
SBOUT
FB1_L/R
SL,SR
IC301,IC801
FB2_L/R
C,SB
MUTE IC901
FM MODULATOR
SOURCE_MUTE
Q1901 to Q1904
IC611 to IC613 A1+/- to A4+/-
CENTERch
IC615,IC621,IC622 B1+/- to B3+/-
SURROUND BACKch
IC632 to IC634,IC651
AMP. LIN+/- PWM_C
IC667
PWM_SB
RIN+/-
8CH FB1_C,FB2_C
AMP. CDIN,CDOUT
FB1_SB
CODEC
CCLK,D_CS FB2_SB
IC671 D_RST,INT
CPU
PWM_SL/SR
DSPSTATUS
DSPREADY FB1_SL/SR
DSPRESET FB2_SL/SR
C_LRCK,S_LRCK
DSPCOMMAND
C_BCK,S_BCK
DSPCLK
D/A0 to D/A3
DATA,MCK,XTAL
GPIO1,GPIO2
GPIO3,GPIO4 IC661
MOSI,MISO DSP
SS,HREQ
+S2B,-S2B
DSP_RST
MICK IC673 SCK
INV
JOG1,JOG2
JOG1
JS401
VOL1,VOL2
JOG2
VOL1 JS402
D412 to D415
BLUE_LED
VOL2
BLUE LED
JOG/VOL.
TUNER_IND,TV_IND
DVD_MULTI_IND
VCR_G_IND,VCR_R_IND
VIDEO_G_IND,VIDEO_R_IND
DVD_G_IND,DVD_R_IND
D421 to D426
INDICATOR
REMOCON
IC402
IR DETECTOR
BLUE_LED
D408,D409
KEY_IN1
BLUE LED
KEY_IN2
KEY_IN3
STANDBY_IND
F1,F2
S401 to S406 D407
-VPP,5.0V
SW STANDBY LED
FW402
B_SW1
B_SW2
AMP_CLK
CN412
+S2B,9.4V
F1,F2
VIDEO+7V
+S2B
-VPP,5.0V
D+5V,A+5V,9.0V
+S2B
AC_ON/OFF
B_SW1,B_SW2
POWER_PWM
+S2B IC851 to IC855
AMP_CLK,+12V
Q851 to Q858
SW CONT.
9.4V
SW control section
HEADPHONE
RY211
OUT
IC311
IC312
AMP
HP_SW
FL
Q1301 to Q1304 FR
RY301
FRONT Lch/Rch
C
RY901
C_RELAY
F_RELAY
IC911
IC912
AMP
IC811
IC812
Speaker terminal and smart surround setup section
AMP
SB
SL
SR
Q1801 to Q1804
SURROUND Lch/Rch
Master clock section
CLK_F_CONT AMP_CLK
AMP_CLK CLK_F_CONT
IC702,IC704,IC706
Master clock GEN.
AMP_CLK
HP_SW
Primary section
HP_RELAY
POWER
+5V
Q203 D201
B+5V
+5V/B+5V to
REG. D204
9.0V
9.4V
+S2B
D208
Q207,Q208
-S2B S2
+7V
to
-7V -7V/+7V REG.
D211
A+5V Q213 +S2B VS201
A+5V REG. VOL. SEL.
TU+9V Q210
+S2B
TU+9V REG.
Q209
5.0V +S2B
CN204 CN205
+5V REG.
+S2B
+S2B D231
-VPP Q205 S2
D233
-VPP REG.
D234
F1,F2 S3
Power
Q703,Q704
AMP+B
trans.
AMP+B/AMP-B
AMP-B
REG.
D701
S1
+B to
Q722 to Q726 IC701
D704
-B+12V REG. AMP
-B+12V
POWER_PWM
AC_ON/OFF
+B
+12V
CN725
IC371
IC871
IC971
SMART
SURROUND
SETUP
CN728
CN751 CN727
FL,FR,C
SL,SR
SB
FL,FR,C
+S2B
-S2B
S_RELAY
SB_RELAY
SL,SR
SPEAKER
RY801 SB
TERMINAL
RY902
T202 Main
Trans.
plug
RY201
Q702
+12V REG.
+B +12V
CN711
2-1