JVC DX-T7 Service Manual page 137

Block diagram
(For DX-T7)
DVD servo and system control section
A,B,C,D,E1+F1,E2+F2,E3+F3,E4+F4
RF+,RF-,PD(CD),PD(DVD)
DVD traverse
LD(CD) LPCO1,LPCO2
Q101
mechanism
LD(DVD) CDLDCUR,DVDLDCUR
to
F+/- Q104
T+/- X301
FM+/-
27MHz
WOUT
SPDRV,TRSDRV
VOUT
UOUT FODRV,TRDRV,FG
IC201
COM /DRVMUTE,/SPMUTE
DVD traverse
DRVER
mechanism TRVSW
DVD tray control section
TR1_CL to
TRAY1 to 5 TR5_CL
POSITION
CLOSE SW
SENSOR
TRAY M.TR_OP
OPEN SW SUB TRAY
CN3
END SW
CN2
IC1, IC2
TRAY / POSITION
MOTOR DRIVER
SUB TRAY
POS_UP START SW
POS_DOWN
M
TR_OP,TR_CL S.TR_ST
TRAY POSITION
MOTOR
PB Tape A playback section
HEAD
A_PBL,A_PBR
IC41
AMP
PBMUTE
SERIAL TO PARALLEL
SOLCTRL
VR37
IC1
MOTOR Q485,Q486
SW2,SW6
SPEED Adj.
REEL
SOLENOID
SWITCH
PULSE
PHOTO SOL
M
PLAY,TAPE
PHOTO+B
MB
SOL
SOLENOID
Tape B record and playback section
REC/PB
ERASE
RECL,RECR
IC32
HEAD
AUDIO SIGNAL
B_PBL,B_PBR
REC/PLAY
PROCESSOR
FREQUENCY
PBMUTE,RECH
RESPONSE Adj.
L301
Q302,Q305
RECB
BIAS
BIAS OSC/CONT.
OSC
SOLCTRL
VR37
Q375,Q376
SW1,SW2 IC1
MOTOR
SOLENOID
SPEED Adj.
SW5,SW6 REEL
PULSE
SWITCH
RREC,FREC PHOTO
M
PLAY,TAPE
PHOTO+B
MB
SOL
SOLENOID
DISPRST,DISPBUSY
DISPD2S,DISPS2D
MA0 to MA11,BA0,BA1,MCK DISPCS,DISPCK,TX
MDQ0 to 15,DQM0,DQM1
DAC1OUT (Y-2)
IC505
NCSM,NRAS,NCAS,NWE DAC2OUT (Cb)
SDRAM DAC3OUT (Cr)
DAC4OUT (Y-1)
DAC5OUT (C)
IC301
DV3.2
EXADT0 to 15
EXADR16 to 20 AOUT1
NEXCE,NEXOE AOUT2
NEXWE
BCK,LRCK
DAC1CS
DAC2CS
DISPRST
DACPDN
IC509
DISPBUSY
DACCK
FLASH ROM
DISPCS
DCLK
DISPCK
IC702
DISPD2S DDATA
IC703
DISPS2D
DAC
R1 IC451
LSENSOR
MECHA
CONT.
AOUT0
EPDI,EPDO
BCK,LRCK
EPCS,EPSK
STEDSW DAC0CS
DACPDN
IC452
DACCK
EEPROM
DCLK
IC701
DADATA
CLSWT1 to 5 DAC
STSTSW
AIN,DCLK
MTOPSW
BCK,LRCK
POSMUP
DACCK
POSMDN
ADCRST IC704
MTOP, MTCL
ADC
LRMUTE
SDATA,SCK
S-CK,S-DATA
STTA_A A-STTA,B-STTA
A-PHOTO,B-PHOTO
IC43
A-PLAY,B-PLAY
A-KEY,B-KEY
PORT EXTENSION
MOTOR
TUDI,TUDO
Q481,Q482
TUCK,TUCE
TO
MOTOR
TUNER
RECL,RECR
DRIVE DRIVE
PACK
MB PLAYA
A-PBL
PHOTOA
A-PBR
KEY_A
B-PBL
RECL,RECR
B-PBR
B_PBL,B_PBR
TUL,TUR
AUXL
CN47 CN46
AUXR
AUX IN
CN34 CN33
SDATA
SCK
External input, source selector
STTA_B
and system control section
IC33
FL display section
SERIAL TO PARALLEL
D5004
PORT EXTENSION
RHYTHM AX
MOTOR
LED
Q371,Q372
MOTOR
DRIVE DRIVE
S5000 to S5034
SOL MB PLAYB
PHOTOB KEY MATRIX
KEY_B
Video output section
Y-1,Y-2
IC920
C,Cb,Cr
VIDEO
DRIVER
DISPRST,DISPBUSY
DISPCS,DISPCK
VIDEO-MUTE
DISPD2S,DISPS2D
CN920
RAOUTL
CN760
RAOUTR
FAN-SPEED,FAN-CTRL
RAOUTL
CAOUT
V-DI,V-CK,V-CE2
Q8070 RAOUTR
SWAOUT
Q8170 IC870
Q8071
SURROUND
LRMUTE Q8171
VOL
CENTER/REAR MUTE
Q7794
CAOUT
IC880
Q8081
C & SW
SW
Q8180
VOL
FAOUTL
FAOUTR
V-DI,V-CK
V-CE1
FANOUTL
FANOUTR
IC800
IC881 SW-AHB
AINL
AINR FRONT AMP.
MIX AMP.
SMUTE
DISPS2D
FL
DISPBUSY
Q7798
FR
Q8000
IC760
DISPCS
ADINL
Q8100 LRMUTE
LEVEL
DISPCK
ADINR
DISPD2S CONV.
CPURST
IC810
V-DI,V-CK
CS
SP-DA
DSP SW VIDEO-MUTE
U2SDT
SP-CK V-CE1,V-CE2
LSELO
SP-WR
FAN-SPEED
RSELO
SP-REQ
FAN-CTRL
SP-STR
IC850
SURROUND
MIC-IN
PROCESSOR
SDA
IC770
SCL
SP-OUTL
SYSTEM
SP-OUTR
CPU
IC771
IC860
LVRIN,RVRIN
EFFECTOR EEPROM
MIC-IN
IC820 V-DI
V-CK
MAIN
V-CEM
VOL LOUT,ROUT
V-DI,V-CK,V-CEM MIC-IN,HPSW,HP-MUTE
REM,LED-STBY,LED-RHY,LED-ILLU,FL-DA
FL-LA,FL-CK,FL-BK,FL-KAOK,F-KEY1 to F-KEY4
CN720
CN500
LED-STBY
LED-RHYTHM
D5005
KARAOKE LED-KARAOKE
REM
SCORING
FL-DATA
LED
FL-CLK,FL-BK
FL-LATCH
F-KEY1 to F-KEY4
P1 to P35
D5006
IC500
FL500
LED-ILLUMINATION 1G to 10G
PRESET
FL
FL
+VPP
LED
DRIVER
2-16
DIGITAL
TX
OPTICAL OUT
Y,Cb,Cr COMPONENT
VIDEO OUT
S-VIDEO OUT
Y,C,CV
COMPOSITE
VIDEO OUT
D5V,D5.6V
S5V,M5V
M9V
DC regulator and audio output section
SUR-L
RLIN
SUR-R
IC601
RRIN
CENTER
SURROUND,CENTER
AMP.
C/R-MUTE
SURR/L OUT
C-IN
SURR/R OUT
Audio output section
CENTER OUT
C/R-MUTE
F/L IN +/-VL
IC650
F/R IN
Q6501
S/W1 FRONT
SWIN
Q6502
SUBWOOFER
FLIN
FAN CONT.
AMP.
FRIN
F/L OUT
Q8040 S3
F/R OUT
S3CT
Q8140
S/W1
VH+/-,VL+/-
CN651 CN601
FL
TO
FR
SW
FRONT SPEAKER,
CENTER
CENTER SPEAKER
& SUBWOOFER
RL TO
RR
SURROUND
SPEAKER
CN200 CN201
FL,FR RL,RR
FL,FR
SW1 C
RL,RR
SW2 +/-VH
C +/-VH +/-VL
SW1
+/-VL S3,S3CT
MAINL
+VH,-VH
MAINR
S3,S3CT
+VL
IC830
-VL
AMP.
S2
D2001 to D2004
+/- VL BRIDGE
CN204
CN104
D1000 to D1003
S3
REGULATOR
BRIDGE
S3 S2,S3CT
D5007
+VH,-VH
STANDBY
LED D1004 to D1011
+/- VH BRIDGE
IC510
REMOCON
S1
Q1000
RECEIVER
35V
Q1001
F+
REG.
FL BIAS
F-
FL1
FL2 VPP VPP
S4CT
Primary board with main transformer section
CN603
D5V
D5.6V
M5V
M9V
FAN SPEED
FAN CTRL FAN12V
TO
FAN
IC602 to IC608
REG.
Microphone circuit
section
HPL
Q9100
HPR
to Q9104
PHONES
HP MUTE
HP-MUTE HP-SW
MIC1
IC901
AMP.
MIC2
MICSIG
CN901
S1000
AC
VOLTAGE
INPUT
SELECTOR
SWTCH
CN101 CN102
S1
S2,S3 T1001
S3CT
TRANS.
S4
S4CT