Block Diagram - JVC TH-C90A Service Manual

Block diagram

<Main body section>
DVD servo /USB section
DVD
traverse
mechanism
D1.2V
IC302
1.2V REG
DVD changer mechanism section
TR1_CL to
SW1 to SW5
TR5_CL
TRAY1 to 5
CLOSE SW
SW6
M.TR_OP
TRAY
OPEN SW
CN3
CN2
W7
SUB TRAY S.TR_ST
START SW
Power supply section
IC901
D901
SWITCH REG.
AC IN
DIODE
BRIDGE
FL display section
S531 to S540
DISC_KEY
POWER SW
G1 to G11
DI501 S1 to S17
FL DISPLAY
ILLUMI1
D551
ILLUMI2
DRIVER
ILLUMINATION
LED
HEADPHONE
HP-L/R
OUT
HP_DET
A, B, C, D, E, F, RF+, LPC1, LPC2
LPCO1, LPCO2
LD(CD) CDLDCUR
LD(DVD) Q101 to Q104
DVDLDCUR
LASER DRIVER
X301
27MHz
F+/-
FM+/-
T+/-
WOUT, VOUT
SPDRV, TRSDRV, FODRV
UOUT, COM TRDRV, SPMUTE, FG
IC201
DRVER
TRVSW
S3.3V
EXADT0 to 15
P3.3V
EXDT0 to 15
EXADR16 to 20
NEXCE, NEXOE, NEXWE
IC509
IC305
CPURST
FLASH ROM
3.3V REG
IC453
3.0V DET
D2V D4V
DVDPWR
R1
POSITION
SENSOR
SW8
SUB TRAY
END SW
IC1, IC2
M TRAY / POSITION
MOTOR DRIVER
M1,M2
POS_UP
TRAY/POSITION
POS_DOWN
MOTOR
TR_OP, TR_CL
D998
SWD5V
SWD5V REG.
Q974,Q989
SWD5.6V
SW5.6V REG.
B5V
D999 Q954,Q979
T901
D5V
B5V REG. SW5V REG.
POWER
TRANS.
Q959,Q984
M9V
M9V REG.
Q958,Q969
A12V
IC472
A12V SW
RESET
F+,F-
Q951, Q953
-VDISP
FL SW, -VDISP SW
Q4012
AC OFF
DETECT
IC511
STAND-BY, REMOCON
KEY1, KEY3, KEY4
F+/-,-VDISP
REMOCON
KEY3
DI-CK, DI-DT, DI-CS
B5V,D5V
KEY4
REMOCON
STANDBY VOL1 VOL1, VOL2, HP-_DET
JS541 VOL2
S521 KEY1
D511
HPOUT_L/R
VOLUME
STANDBY
LED
DI-CK
DI-DT
IC501
DI-CS
FL
Top key section
S526 to S529
OPERATION SW
SPD, RCV, VPO, VMO
IC811
D+/-
NOE, VP, VM, SUSPEND
USB
WP, SCL, SDA TRANCEIVER
IC510
D5V
EEPROM
IC801
NEN
801
NRESET X302,IC303
5V
48MHz
REG.
MA0 to 11, BA0, BA1
IC301
MDQ0 to 15, DQM0 to 1
NCSM,NRAS, NCAS, NWE, MCK IC505
DVN
SDRAM
AOUT0 to 2
DCLK, DDATA, DACPDN
DAC0CS, DAC1CS, DAC2CS
BCK, LRCK, DACCK
ADIN
ADCPDN IC704
ADC
LRMUTE
AINL/R
S2UDT
U2SDT
IC701
UCLK
EPDI
SCS, UCS to
EPDO
DISCSET
IC703
EPCS
DISCSTP
DAC
EPSK
LSENSOR
IC452
EEPROM
STEDSW
X451
IC451
CLSWT1 to 5
8MHz
FAOUTL/R
MECHA
STSTSW
RAOUTL/R
DISPRST
MOTPSW CONTROLLOR C
CAOUT
DISPBUSY
POSMUP V
SWAOUT
DISPCS
Y1
POSMDN
DISPCK
MTOP Y2
DISPD2S
MTCL CB
DISPS2D
CR
RX
CN701 CN702 CN801
CN402 CN403 CN404
System control section
D2V,D4V A6V D6V
DVD_U2SDT2
IC473 DVD_BUSY2
LEVEL SHIFT
DVD_U2SDT, DVD_BUSY
DVD-PON
DVD_RST
DVD_CS
SYS-PON DVD_CK
DVD_S2UDT
V_YCMIX, V_LPF, V_RGB
V_MUTE1, V_MUTE2
X4701
8MHz
VOL_DT, VOL_CK
HPMUTE, SMUTE
RST
IC471
SW_PON Q4811, Q4812
SW-PON
SYSTEM
ECHO
MIC-DET
MICOM
INH
MICMUTE
AM BEAT Q4821
AM-BEAT CUT
EEP-DT
EEP-WP
EEP-CK IC477
EEPROM
CN457
FW521 AVC_OUT
AVC_IN
TU_DTI, TU_DTO
KEY1
S522,S523 TU_CK, TU_CE
KEY2
Q4091, Q4092
A12V
TU_PON
TU9V REG.
USB
Audio & Digital input section L/R-OUT
L/R-IN
L+RCIN
L+RSWIN
IC121
TUNER L.P.F.
IC101
SWOUT
SIG SEL. IC113 Q1123
COUT
SW/C AMP. SWC MUTE
VOL AMP.
SLOUT
IC112 Q1122
SROUT
SL/SR AMP. SL SR MUTE
LOUT
ROUT IC111 Q1121
L/R AMP. LR MUTE
VOL_DT
HP_OUT_L/R
SW_PON
VOL_CK
TU-L/R IC131
S-MUTE Q1101,Q1102
ADIN-L/R
HP AMP.
OUT-L/R S.MUTE
OUT-SL
Q1131
OUT-SR
to
OUT-C
HPMUTE Mic Jack section
OUT-SW Q1133
HP
MIC-DET
MUTE
VR701,Q7301,Q7302
MIC VOL./MUTE
IC701
Q7401,Q7402
MIC ALC/AMP.
MIC HPOUT_L/R MIC
MIX IN
ECHO
CN101 IC761
MICMUTE
DIGITAL
CN415
ECHO
CN102 CN414 CN701
CN411 CN413 CN455
ADINL/R
ECHO
OUT-L/R
MIC
OUT-SL/SR MIC-DET
OUT-C MICMUTE
OUT-SW
Video input/output section
LRMUTE
CR
CB
Y2
IC431
VIDEO
DRIVER
SW_PON2
V
Y1
C
IC411
VIDEO
SW
V_SW
VCR_S/C
TU-L/R
TU9V
Used for TH-C90
TAPE OUT
TAPE IN
J1101
L/R-IN
AUX IN
SW
C
SL
SR
SYSTEM
L
CONNECTOR
R
MIC
IN 1
MIC
IN 2
Used for
Area suffix
UG/US/UX
DIGITAL
RX
IN
Pr
COMPONENT
Pb
VIDEO OUT
Y
C
S-VIDEO OUT
Y
COMPOSITE
V
VIDEO OUT
C
S-VIDEO IN
Y
COMPOSITE
V
VIDEO IN
DEVICE KEY
WRITING
Tuner
Pack
2-1