JVC UX-P550 Service Manual page 56

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Block diagram
DVD servo / DVD system control section
A,B,C,D,E,F,RF+,LPC1,LPC2
LPCO1
LPCO2
Q101
LD(CD) CDLDCUR
LD(DVD) Q102 DVDLDCUR
PICKUP
Q103
&
Q104
TRA
MECHA FM+/- SPDRV,TRSDRV
WOUT F+/-
FODRV,TRDRV
ASS'Y
VOUT T+/-
/DRVMUTE
UOUT /SPMUTE
IC201
COM FG,VHALF
DRVER
TRVSW
MA0 to 11
BA0, BA1
MDQ0 to 15
DQM0, DQM1
NCSM,NRAS
NCAS,NWE
MCK
IC505
SDRAM
User key control / source selector
switch section
IC760 JS760
REMCON VOLUME
VOLP
REM(L)
VOLM
F-KEY0
DIMMER
LEDCTL
F-KEY1
D7601 D7600
STANDBY BACK
LED LIGHT
EXDAT0 to 15
EXADT0 to 15
EXADR16 to 20
NEXCE,NEXOE
IC509
NEXWE
FLASH ROM
AOUT 0
LRCLK IC453
IC301 CPURST
DACPDN
RESET
DV2.1
DAC0CS
DCLK
DDATA
DAC1OUT
DAC1OUT(Y/G)
DAC2OUT
DAC2OUT(Cb/B)
DAC3OUT
DAC3OUT(Cr/R)
DAC4OUT
DAC4OUT(Y/COMP)
DAC5OUT
DAC5OUT(C)
TX,UCS
U2SDT,S2UDT
SCS,SCLK
SCLK,SCS,UCS
U2SDT
CPURST
S2UDT
AOUT0
LRCLK
DACPDN
DAC0CS
SPDIF
DCLK
DDATA
FAOUTL
X351
IC701 FAOUTR
OSC
DAC
OPTICAL
DIGITAL
OUTPUT
AUX IN
TUNER
FM
AM
LCD section
SEG1 to SEG36
DI750 IC750
COM1 to COM4
LCD FL DRV.
DATA,SCL
LCDCE
MODE,INH(L)
DIMMER
D7500
S7600
to BACK
S7611 LIGHT
Source selector switch /
Video driver / Video out
component section
System control / Multiregulator section
Y/CV,C/C
Cr/R,Cb/B
Y/G,FAN
VIDEO-MUTE1
VIDEO-MUTE2
VIDEO-RGB SW
VIDEO-Y/C MIX
Q7320
VIDEO-SW
FAN
Q7321
FAN DRV.
FAN_ON
S2UDT
CPURST
U2SDT
SCLK
HIGH-LIN
CS
HIGH-RIN
LOW-LIN
IC707
LOW-RIN
Audio output / External input /
OPENDET
3.3V 5V
CLOSEDET DVD motor section
CONV.
OPEN,CLOSE
SAFETY(L)
U2SDT/RX
POUT-RELAY
SCLK,CS
POUT-AMP
SMUTE(L)
STBY,HPSW
DVDL
DVDR
LOUT
ROUT
SPDIF
IC200
E.VOLUME
VOLDATA
AUXL VOLCLK
AUXR
VOLCE
TULIN
TURIN
LSELO,RSELO
LVRIN,RVRIN
X7001
IC202
SOUND1
TUDO OSC
RHYTHM AX
TUDI
TUCE
TUCLK
RDS
SDA
RDATA
IC702 SCL
RCLK
EEPROM
IC706
RDS DRIVER
Q7300 IC701
DIMMER(L)
LDATA,LCE Q7301
SYSTEM
LCLK,LMODE
DIMMER
LINH,REM(L)
MICON
CONTROL
VOLP,VOLM
LEDCTL
F-KEY0,F-KEY1
DIMMER
DIMMER
RESET
IC703
RESET
Digitized in Heiloo Netherlands
Primary section
Y/CV-OUT
Cb/B-OUT
Cr/R-OUT
IC301 COMPONENT
Y,Cb,Cr
VIDEO VIDEO OUT
DRV.
R/C,G,B
SCART
V/Y
TERMINAL
VIDEO-RGB
VIDEO-LPF
IC302
Y/C-MIX
C/C-OUT
SW
MUTE1
MUTE2
VIDEO-SW
FAN
FAN
MOTOR
CN104
CN403
S1,S2,S3,S3CT
STBY,POUT
HIGH L Q4121
Q4131
HIGH R
to
IC411
LOW L to
Q4123
LOW R IC421
Q4135
Q4221
POWER
Q4231
Q4222
AMP.
to
SYSTEM
Q4235
MUTE
SAFETY
S1,S2
HPSW
SMUTE(L)
POUT-AMP
SAFETY(L)
IC240
S3
US10V
US10V
M9V
REG.
IC705
5V
5V REG.
HPSW
Q2420 LOUT
ROUT
D5V
D5V
REG.
IC207
H.P.
Q2430
AMP.
12V
12V REG.
S3CT
Q2071
Q2171
IC241
FDVD
DVD5V S5V Q2271
H.P. MUTE
REG.
Q2410
Q2411
D3.3V
DVD3.3V S3.3V
REG.
2/4/2018
D1001 to D1004
S1,S2,S3 D1005 to D1008
D1009 to D1012
DIODE BRIDGE
T1001
S3CT
TRANS.
RY101
RELAY
STBY
T1002
POUT L1001
AC INPUT
TRANS FILTER
+/-HIGHL
+/-HIGHR
+/-LOWL
+/-LOWR
OPEN LM+
IC440
TO DVD
CLOSE LM-
MOTOR
MECHANISM
DRV.
OpenSW(L)
CloseSW(L)
S3
S3CT
CN401
CN200
+/-MAINL
+/-MAINR
+/-SUBL
ML+/- SPEAKER
+/-SUBR
MR+/-
TERMINAL
HIGH OUT
SPEAKER
SL+/-
SR+/-
TERMINAL
LOW OUT
Headphone
SMUTE(L)
section
HPL
HPR
HEADPHONE
HPSW
TERMINAL
2-1