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JVC RX-7042S Service Manual page 20

Audio/video control receiver
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Block diagram
Audio signal input section
TO
TUNER
TUL
TUR
J371
DVD.F-L/R
TV/DBS.L/R
J372
VCR.REC-L/R
VCR.PLAY-L/R
J373
TAPE/CDR.
REC-L/R
TAPE/CDR.
PLAY-L/R
CD-L/R
Volume / Video
component section
DVD.C
IC304, IC386
DVD.SW
DVD.LS
DVD.RS
J1491
SUB
WOOFER
DVD.Y/Pb/Pr
STB.Y/Pb/Pr
MONITOR.
Y/Pb/Pr
J1350
DCS
COMPULINK
Video signal input section
(S-Video)
DVD-C/Y
TV/DBS-C/Y
VCR1R-C/R-Y
VCR1P-C/P-Y
MONITOR-C/Y
Standby LED
2-1
TUCE, TUCK, TUDI, TUDO
MAIN_STB
MAIN_CLK
MAIN_DATA
IC371
Source
Selector
SW_MUTE
FR_RELAY
C_RELAY
SIG.L
SUR_RELAY
SIGR
SBK_RELAY
IC303
AMP.
FRONT-L
FRONT-R
V.SIG.L
V.SIGR
CN371
CN381
MAIN_STB, MAIN_CLK
MAIN_DATA, FRONT-L/R
AMP.
SW_MUTE
Q1441, Q1445, Q1447
SW MUTE
IC389
VIDEO3
VIDEO4
IC390
SW
VIDEO1
IC241
VIDEO2
VIDEO3
IC242
C
SW
IC243
IC244
Y
VIDEO1
SW
VIDEO2
VIDEO3
FL display section
S480 to S483
KEY1
S400 to S432
KEY6
S433, S434
System control section
MAIN_STB, MAIN_CLK
MAIN_DATA, TUCE
TUDI, TUDO, TUCK
IC901
SW_MUTE
System
FR_RELAY, C_RELAY
MICON
SUR_RELAY, SBK_RELAY
Q931
MICOM5V REG.
DSP5V REG.
Q941
VIDEO12V REG.
Q981
A+12V REG.
DSP_IN_L, DSP_IN_R
DSP.L, DSP.R, DSP.SL
DSP.SR, DSP.C, DSP.SW
IC380
Audio
Source
Selector
Video signal input section
J201
DVD
TV/DBS
J202
VCR1REC
VCR1PB
J204
MONITOR
Q413
STANDBY_LED
Dimmer
IC400
Display
KEY1 to 6
Control
Driver
DIRECT_LED
Q410, Q411
CC_CON_LED
Dimmer
DSPCLK, DSPREADY, DSPRESET
DSPSTATUS, DSP_COMMAND
HP_RELAY
SUR_RELAY, C_RELAY, SUB_RELAY
F1_RELAY, F2_RELAY, SBK_RELAY
VIDEO1, VIDEO2, VIDEO3, VIDEO4
VOL_STB, VOL_CLK, VOL_DATA
M_RESET, M_BUSY, M_STATUS
M_COMMAND, M_CS, M_CLK
DSPA5V, RDS5V, MICON5V
DSP5V, A+12V, A-12V
TU+9V, VIDEO12V, +B2
Q921
DSPA5V REG.
RDS5V REG.
Q961
A-12V REG.
Q971
TU+9V REG.
DSP.SrBK
IC381
to
IC383
Volume IC
IC399
AMP.
VOL_CLK, VOL_STB
VOL_DATA
CN205
CN204
VOL_CLK
VOL_DATA
VOL_STB
DCS
VIDEO3
IC201
VIDEO1
VIDEO4
VIDEO2
IC202
VIDEO3
V
SW
M_CLK,M_COMMAND, M_STATUS
M_CS, M_BUSY,M_RESET
DCSO, DCSI
Q402,Q403
JOG1
JS400
JOG2
Volume JOG
IC404
RM
Remocon
S1 to S36
DI400
G1 to G17
FL Display
DCS
POWER_ON
SIG.L
SIG.R
SIG.SL
SIG.SR
SIG.C
SIG.SrBKL
DCS
FL1, FL2
-VPP

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