Block Diagrams - JVC TH-M303 Service Manual

Block diagrams

<Main body section>
DVD servo board
A, B, C, D, E, F, RF+, PD(CD), PD(DVD)
DVD traverse
mechanism LD(CD), LD(DVD)
Q101 to Q104
FM+/-
F+/-
WOUT
T+/-
VOUT
UOUT SPDRV, TRSDRV, FODRV, TRDRV
IC201
COM /DRVMUTE, /SPMUTE, FG, WHALF
DVD traverse
DRVER
mechanism
DVD changer mechanism section
TR1_CL to
TRAY1 to 5
SUB TRAY
TR5_CL
CLOSE SW
END SW
TRAY M.TR_OP
OPEN SW
IC1, IC2
M
CN3
TRAY / POSITION
CN2 TRAY
MOTOR DRIVER
POSITION
POS_UP, POS_DOWN
SUB TRAY
MOTOR
S.TR_ST TR_OP, TR_CL
START SW
Power supply section
Q951, Q953
FL SW, -VDISP SW
-VDISP
IC953
B5V, D5V
B5V REG.
DVD-PON
SYS-PON
T901
IC901
POWER
SWITCH
TRANS.
REG. D5V
IC951
D970
D5V REG.
DVD3.3V
DVD5V
DIODE
Q954,Q955
BRIDGE
DVD5V SW
P901
Q958 to Q961 A+12V
A-12V
A+/-12V REG.
AC IN
FL display section
IC511
F1,F2,-VDISP
REMOCON
B5V,D5V
S531 to S540
KEY3, KEY4 REMOCON
DISC_KEY
VOL1
STANDBY
VOL2
X501
JS541 Q503
FL display
8MHz
section (P_key)
DI-CK, DI-DT
DI-CS, DI-RST
IC501
ILLUMI S521
KEY1 KEY1
DISPLAY POWER
DISC1 to 5
DIMMER
MICOM SW
G1 to G14
Q561 to Q566
D511
P1 to P35
STANDBY
DI501 D561 to D565 STANDBY
LED
FL DISPLAY DISC LED
EXADT0 to 15, EXADR16 to 20
NEXCE, NEXOE, NEXWE
LPCO1, LPCO2
CDLDCUR, DVDLDCUR
EXADT0 to 15
X351
NEXCE
27MHz
IC301
MA0 to 10, BA0, BA1
PANTERA-2
MDQ0 to 31, DQM0 to 3
NCSM,NRAS, NCAS, NWE
INDEX, TRACK, COPY
AIN, AOUT 0 to 2, BCK, LRCLK
TRVSW DACPDN, DAC0CS, DCLK, DDATA
S2UDT
U2SDT
SCLK
SCS
CPURST
UCS
DISCSET
IC1
LSENSOR
DISCSTP
POSITION
IC452
SENSOR
EEPROM
STEDSW
EPDI,EPDO
EPCS,EPSK
CLSWT1 to 5 DISPRST
STSTSW DISPBUSY
IC451
MTOPSW DISPCS
MECHA
POSMUP DISPCK
POSMDN DISPD2S
CONTROLLOR
MTOP, MTCL DISPS2D
System control section
IC473
DISPS2D, DISPBUSY
F1,F2
U2SDT
CS
B5V
D5V
SYS-PON, DVD-PON
CPURST
INTP
SCLK
M9V
DVD-5V IC471 S2UDT
X4701
DVD-4V
8MHz
SYSTEM
M9V
MICOM
+12V VOL-MUTE, VOL-DT, VOL-CK
Q4821
SETUP, TU, L-R
AM-BEAT
-12V
AM-BEAT
CUT SW-PON
RESET-IN/RST
Q4702
S-MUTE
IC472
VOL-1, VOL-2
STAND-BY
RESET
REMOCON
KEY1, KEY2
KEY3, KEY4
DI-CK, DI-DT
DI-CS, DI-RST
HP-DET
ILLUMI
ECHOLEVEL
MICMUTE
MIC
(LED) (Connect)
AVC-OUT
ILLUMI.
ILLUMI AVC-IN
LED
TU-DI, TU-DO, TU-CK
FL display section
TU-CE, RDS
(Operation key)
TU-PON
KEY1
KEY2
S522 to S529 Q4091, Q4092
OPERATION SW TU9V REG.
Audio input/output section
SW.P.ON, SETUP
IC509
FLASH ROM
LADD0 to 15
IC512, IC513
LATCH
IC505 Q1131
S_MUTE Q1133
DRAM
Q1135
TU-SW
S.MUTE
COUT
IC581
YOUT
CrOUT
IC591
CbOUT
AMP.
TX
IC704
RX
ADC
AINL
AINR
IC701
L-R
Q1251
to
TUNER
Q1252
IC703
DAC TU_L, TU_R
IC531
FAOUTL
OUT-L
AMP.
FAOUTR
OUT-C
OUT-R
RAOUTL
LRMUTE
OUT-SW
RAOUTR
SWMUTE
OUT-SL
CAOUT
SWAOUT OUT-SR
CN703 CN701 CN702 CN442 CN441
CN403 CN401 CN402 CN412 CN411
Video input/output section
OUT-L, OUT-R
ADINL
ADINR
DIN, DOUT
C, CV-Y1, Y2-G
CB-B, CR-R
IC474
IC476
AUX-L, AUX-R
TV-SOUND
AMP.
/ AUX
SELECT3, SELECT4
SELECT
Q4811, Q4812 SWPON
SW-PON
Q4801, Q4802 SMUTE
S-MUTE
DRIVER TU-L, TU-R
TU-SW
HPOUT-L
HPOUT-R
IC475
IC601
IC478
HP
TUNER
AMP.
AMP.
HP-L
HP-R
CN460
Q4703
J4891 CN701
AV
AVVLR
ECHOLEVEL
COMPULINK
MICMUTE
MIC
HEAD
Tuner
DIDITAL ECHO
PHONE
TU9V
Pack
OUT
HP-L, HP-R, HP-DET
<Subwoofer section>
SYSTEM
C, SW
CONN.
SL, SR
L, R
IC158
to
IC160
HPOUT_L
AMP.
HPOUT_R
+IN 1, +IN 2
C IN, SW IN
IC153
VOL_MUTE
6CH
VOL_DT
VOL.
VOL_CK
Mini Din
IC151
DIGITAL CONN.
DIN
AUDIO
IN
SW
DIGITAL
DOUT
OUT
J1101
AUX-L
AUX-R
AUX IN
VIDEO-MUTE1
VIDEO-MUTE2
VIDEO-YCMIX
VIDEO-RGB IC431
VIDEO-LPF
VIDEO
DRIVER
CR-R Cr
COMPONENT
CB-B Cb
VIDEO OUT
Y2-G Y
C
S-VIDEO OUT
Y
COMPOSITE
VIDEO OUT
CV-Y1
C
IC411
VIDEO
VIDEO-SW
SW1
C
S-VIDEO IN
Y
COMPOSITE
VIDEO IN
Jack section
IC701
MIC
IC761 AC IN
MIC
IN1,2
AMP.
Amplifier section
TO SW
SPEAKER
IC202
J2702
POWER
RY271
AMP. FLOUT
FROUT
RY272
FCOUT
IC201
POWER
SLOUT
AMP.
RY273
SROUT
C, SW
SL, SR
L, R
CN102 CN102 CN272
CN501 CN502 CN372
P.ON_SIG
L_SIG
PROTECT
SP_RELAY+
R_SIG
SP_RELAY-
C_SIG
SW_SIG
SL_SIG
SR_SIG
Q521 to Q525
PROTECTOR
Q511 to Q517
MUTE
CONTROL
Q541,Q542
LOW VOLTAGE
DETECTOR
Q501 to Q505
POWER CONTROL
& PROTECTOR
+12V
Q151
12V_REG.
+VH, -VH
+VL, -VL
D151, D152
CN151
T101
RY101
POWER
TRANS.
Mother section
2-1