JVC THM-303 Schematic
SCHEMATIC DIAGRAMS
DVD DIGITAL THEATER SYSTEM
TH-M303
CD-ROM No.SML200405
Area suffix
B ------------------------------ U.K.
E ---------- Continental Europe
EN ----------- Northern Europe
EV ------------- Eastern Europe
EE -------- Russian Federation
(SP-THM303C) (SP-THM303F) (SP-THM303S) (SP-PWM303)
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
(XV-THM303)
2-1
2-2 to 12
2-13 to 16
COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LTD.
No.MB231SCH
2004/5
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.
(This regulation does not correspond to J and C version.)
Block diagram
<Main body section> <Subwoofer section>
DVD traverse
mechanism
DVD traverse
mechanism
DVD changer mechanism section
Power supply section
P901
AC IN
FL display section
CN101
CN201
TRAY1 to 5
CLOSE SW
TRAY
OPEN SW
SUB TRAY
START SW
IC901
SWITCH
REG.
DIODE
BRIDGE
S531 to S540
DISC_KEY
X501
8MHz
IC501
DISPLAY
MICOM
G1 to G14
P1 to P35
DI501
FL DISPLAY
DVD servo board
A, B, C, D, E, F, RF+, PD(CD), PD(DVD)
LD(CD), LD(DVD)
FM+/WOUT
VOUT
UOUT
COM
TR1_CL to
TR5_CL
M.TR_OP
S.TR_ST
T901
POWER
TRANS.
KEY3, KEY4
VOL1
VOL2
JS541
DI-CK, DI-DT
DI-CS, DI-RST
ILLUMI
DISC1 to 5
DIMMER
F+/T+/-
IC201
DRVER
CN3
CN2
Q951, Q953
FL SW, -VDISP SW
IC953
B5V REG.
IC951
D5V REG.
Q954,Q955
DVD5V SW
Q958 to Q961
A+/-12V REG.
IC511
REMOCON
Q503
KEY1
Q561 to Q566
D561 to D565
DISC LED
SUB TRAY
END SW
M
TRAY
POSITION
MOTOR
D5V
DVD 5V
REMOCON
STANDBY
FW502
Q101 to Q104
/DRVMUTE, /SPMUTE, FG, WHALF
CDLDCUR, DVDLDCUR
SPDRV, TRSDRV, FODRV, TRDRV
IC1, IC2
TRAY / POSITION
MOTOR DRIVER
POS_UP, POS_DOWN
TR_OP, TR_CL
F1,F2
-VDISP
B5V, D5V
DVD-PON
SYS-PON
M9V
D970
DVD3.3V
A+12V
A-12V
F1,F2,-VDISP
B5V,D5V
FL display
section (P_key)
FW511
STANDBY
KEY1
S521
POWER SW
D511
STANDBY
LED
LPCO1, LPCO2
X351
27MHz
TRVSW
IC1
POSITION
SENSOR
CN1
System control section
CN406/CN407
FW901
B5V
D5V
CN404/CN405
FW902
DVD-5V
DVD-4V
M9V
+12V
-12V
Q4702
IC472
RESET
CN501
CN450
(LED)
ILLUMI.
CN551
LED
FL display section
(Operation key)
S522 to S529
OPERATION SW
IC301
PANTERA-2
CN453
LSENSOR
CN452
STEDSW
CLSWT1 to 5
STSTSW
MTOPSW
CN451
POSMUP
POSMDN
MTOP, MTCL
IC473
U2SDT
CS
SYS-PON, DVD-PON
X4701
8MHz
Q4821
AM-BEAT
CUT
RESET-IN/RST
(Connect)
CN561
ILLUMI
KEY1
KEY2
EXADT0 to 15, EXADR16 to 20
NEXCE, NEXOE, NEXWE
EXADT0 to 15
NEXCE
MA0 to 10, BA0, BA1
MDQ0 to 31, DQM0 to 3
NCSM,NRAS, NCAS, NWE
INDEX, TRACK, COPY
AIN, AOUT 0 to 2, BCK, LRCLK
DACPDN, DAC0CS, DCLK, DDATA
S2UDT
U2SDT
SCLK
SCS
CPURST
UCS
DISCSET
DISCSTP
IC452
EEPROM
EPDI,EPDO
EPCS,EPSK
IC451
MECHA
CONTROLLOR
DISPS2D, DISPBUSY
IC471
SYSTEM
STAND-BY
REMOCON
ILLUMI
CN457CN456
MICOM
Q4091, Q4092
TU9V REG.
AM-BEAT
VOL-1, VOL-2
KEY1, KEY2
KEY3, KEY4
DI-CK, DI-DT
DI-CS, DI-RST
FW561
FW521
IC509
FLASH ROM
IC512, IC513
LATCH
DRAM
COUT
YOU T
CrOUT
CbOUT
TX
RX
DISPRST
DISPBUSY
DISPCS
DISPCK
DISPD2S
DISPS2D
CPURST
INTP
SCLK
S2UDT
VOL-MUTE, VOL-DT, VOL-CK
SETUP, TU, L-R
SW-PON
S-MUTE
RDS-DATA
RDS-CLK
RDS DEC
RDS
HP-DET
AVC-OUT
AVC-IN
TU-DI, TU-DO, TU-CK
TU-CE, RDS
TU-PON
LRMUTE
SWMUTE
CN703 CN701 CN702
CN403 CN401 CN402
SELECT3, SELECT4
Q4811, Q4812
SW-PON
Q4801, Q4802
S-MUTE
DRIVER
IC481
IC475
IC478
TUNER
Q4703
AVVLR
TU9V
LADD0 to 15
IC505
IC704
ADC
AINL
AINR
ADINL
ADINR
IC476
AMP.
AMP.
IC701
to
IC703
DAC
FAOUTL
FAOUTR
RAOUTL
RAOUTR
CAOUT
SWAOUT
IC474
TV-SOUND
/ AUX
SELECT
J4891
AV
COMPULINK
CN410
Tuner
Pack
Audio input/output section
SW.P.ON, SETUP
Q1131
Q1133
Q1135
S.MUTE
+IN 1, +IN 2
C IN, SW IN
VOL_MUTE
VOL_DT
VOL_CK
Q1251
Q1252
IC531
AMP.
Video input/output section
VIDEO-MUTE1
VIDEO-MUTE2
VIDEO-YCMIX
VIDEO-RGB
VIDEO-LPF
CR-R
CV-Y1
CV-Y1
TU-SW
IC581
IC591
AMP.
OUT-C
OUT-SW
OUT-SL
OUT-SR
CN442 CN441
CN412 CN411
OUT-L, OUT-R
DIN, DOUT
C, CV-Y1, Y2-G
CB-B, CR-R
AUX-L, AUX-R
SCART-LIN
SCART-RIN
SWPON
SMUTE
TU-L, TU-R
TU-SW
HPOUT-L
HPOUT-R
S_MUTE
L-R
TUNER
TU_L, TU_R
OUT-L
OUT-R
IC601
HP
AMP.
HP-L
HP-R
CN460
CN701
VIDEO-YCMIX
Jack section
IC158
IC160
AMP.
IC153
6CH
VOL.
IC151
AUDIO
SW
IC431
VIDEO
DRIVER
Y2-G
CB-B
C
C
R
VIDEO
HP-L, HP-R, HP-DET
to
IC441
SW
C, SW
SL, SR
L, R
HPOUT_L
HPOUT_R
DIN
DOUT
AUX- L
AUX- R
Y
Cb
Cr
B
G
CV/Y
L IN
R_IN
R/C
J1103
SYSTEM
CONN.
IC509
DIGITAL
IN
IC510
DIGITAL
OUT
J1101
AUX IN
J4402
COMPONENT
VIDEO OUT
J4403
AV
SCART
TERMINAL
J6001
HEADPHONE
OUT
Mini Din
CONN.
AC IN
Amplifier section
IC202
POWER
AMP.
IC201
POWER
AMP.
C, SW
J2701
SL, SR
L, R
CN102 CN102 CN272
CN501 CN502 CN372
P.ON_SIG
PROTECT
POWER CONTROL
SP_RELAY+
SP_RELAY-
Q501 to Q505
& PROTECTOR
12V_REG.
+VH, -VH
+VL, -VL
CN101
RY101
Mother section
+12V
Q151
RY271
RY272
RY273
Q521 to Q525
PROTECTOR
Q511 to Q517
LOW VOLTAGE
CN102
L_SIG
R_SIG
C_SIG
SW_SIG
SL_SIG
SR_SIG
MUTE
CONTROL
Q541,Q542
DETECTOR
D151, D152
CN151
T101
POWER
TRANS.
CN274
TO SW
SPEAKER
J2702
FLOUT
FROUT
FCOUT
SLOUT
SROUT
2-1
Standard schematic diagrams
<Main body section>
Power supply section
(SHEET 2)
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
2-2
(SHEET 2)
SHEET 1
System control section
To FW901
OF LVA10468-A2
(SHEET 1)
To CN441
OF LVA10476-A1
(SHEET 5)
To CN442
OF LVA10476-A1
(SHEET 5)
To CN702
OF LVA10510-91A
(SHEET 8)
To CN701
OF LVA10510-91A
(SHEET 8)
To FW902
OF LVA10468-A2
(SHEET 1)
To CN703
OF LVA10510-91A
(SHEET 8)
(SHEET 3)
To Video input / output section
(SHEET 6)
To CN501
OF LVA10467-A1
(SHEET 4)
To FW521
OF LVA10467-A2
(SHEET 4)
To FW561
OF LVA10467-A5
(SHEET 4)
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
SHEET 2
2-3
Video input / output section
To System control section
(SHEET 2)
2-4
SHEET 3
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