JVC TH-M301, TH-M303 Schematics
SCHEMATIC DIAGRAMS
DVD DIGITAL THEATER SYSTEM
TH-M303,TH-M301
CD-ROM No.SML200403
TH-M303
Area suffix
J ----------------------------- U.S.A.
C -------------------------- Canada
TH-M301
Area suffix
J ----------------------------- U.S.A.
Contents
Block diagrams
Standard schematic diagrams
Printed circuit boards
COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LTD.
2-1
2-2
2-15 to 18
No.MB184SCH
2004/3
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
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
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
U2SDT
CS
VOL-MUTE, VOL-DT, VOL-CK
SETUP, TU, L-R
SW-PON
S-MUTE
LRMUTE
SWMUTE
CN703 CN701 CN702
CN403 CN401 CN402
INTP
SCLK
S2UDT
DIN, DOUT
IC473
Q4811, Q4812
SW-PON
Q4801, Q4802
S-MUTE
DRIVER
IC475
IC478
TUNER
AMP.
HP-DET
AVC-OUT
AVC-IN
Q4703
AVVLR
TU-DI, TU-DO
TU-CK, TU-CE
TU-PON
TU9V
LADD0 to 15
IC505
IC704
ADC
AINL
AINR
IC701
IC703
DAC
ADINL
ADINR
C, CV-Y1, Y2-G
CB-B, CR-R
DISPS2D
DISPBUSY
J4891
AV
COMPULINK
CN410
to
FAOUTL
FAOUTR
RAOUTL
RAOUTR
CAOUT
SWAOUT
IC531
AMP.
Tuner
Pack
Audio input/output section
SW.P.ON, SETUP
S_MUTE
TU-SW
IC581
IC591
AMP.
Q1131
Q1133
Q1135
S.MUTE
+IN 1, +IN 2
C IN, SW IN
VOL_MUTE
VOL_DT
VOL_CK
IC151
AUDIO
VIDEO-MUTE1
VIDEO-MUTE2
VIDEO-YCMIX
VIDEO-RGB
VIDEO-LPF
VIDEO-SW
OUT-C
OUT-SW
OUT-SL
OUT-SR
CN442 CN441
CN412 CN411
OUT-L, OUT-R
AUX-L, AUX-R
SWPON
SMUTE
TU-L, TU-R
TU-SW
HPOUT-L
HPOUT-R
L-R
Q1251
TUNER
Q1252
TU_L, TU_R
IC531
OUT-L
AMP.
OUT-R
Video input/output section
IC601
HP
AMP.
HP-L
HP-R
CN460
CN701
Jack section
IC158
to
IC160
AMP.
IC153
6CH
VOL.
SW
IC431
VIDEO
DRIVER
CR-R
CB-B
Y2-G
CV-Y1
C
IC411
VIDEO
SW1
HP-L, HP-R, HP-DET
C, SW
SL, SR
L, R
HPOUT_L
HPOUT_R
DIN
DOUT
AUX- L
AUX- R
Cr
Cb
Y
C
Y
C
Y
J1103
SYSTEM
CONN.
IC509
DIGITAL
IN
IC510
DIGITAL
OUT
J1101
AUX IN
J4402
COMPONENT
VIDEO OUT
S-VIDEO OUT
COMPOSITE
VIDEO OUT
J4401
S-VIDEO IN
COMPOSITE
VIDEO IN
J6001
HEADPHONE
OUT
Mini Din
CONN.
AC IN
Amplifier section
IC201
POWER
AMP.
RY271
RY272
IC202
POWER
J2701
C, SW
SL, SR
L, R
AMP.
RY273
SW_SIG
SR_SIG
AD_SL
AD_C
CN273 CN272 CN271
CN502 CN372 CN501
SW_SIG
Q523 to Q525
PROTECTOR
PROTECT
IC303
AMP.
SP_RELAY-
Q603
Q604
P.ON_SIG
P.ON_SIG
P.ON_SIG
Q542
LOW VOLTAGE
DETECTOR
Q501 to Q505
POWER CONTROL
& PROTECTOR
+12V
+5V
Q151
12V_REG.
-7V
+7V
Q152
5V_REG.
D165
7V_REG.
+VH, -VH
+VL, -VL
D166
-7V_REG.
D151, D152
CN101
RY101
CN102
POWER
TRANS.
Power/Micom
section
IC302
AMP.
IC601
MICOM
FAN ON
CN151
T101
IC301
AMP.
AD_L
AD_R
LED
J2702
FLOUT
FROUT
FCOUT
SLOUT
SROUT
CN274
TO SW
SPEAKER
FW501 CN371
D561
LED
FAN
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) or (SHEET 10)
To CN701
OF LVA10510-91A
(SHEET 8) or (SHEET 10)
To FW902
OF LVA10468-A2
(SHEET 1)
To CN703
OF LVA10510-91A
(SHEET 8) or (SHEET 10)
(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
FL display section
(SHEET 2)
(SHEET 2)
(SHEET 2)
SHEET 4
2-5
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