JVC TH-M45
Circuit Diagrams

Block diagrams
<Main body section>
DVD servo board
A,B,C,D,E,F,RF

<Subwoofer section>
IC101 FRONT END PROCESSOR
TBAL,FBAL,TE,FE,AS ARF+,ARF-,BDO,OFTR RFENV,TESTSG,SLEEP

Main board

SCART-LIN SCART-RIN DVD-110,DVD-112 DVD-114,DVD-118 DVD-110 DVD-112 DVD-114 B5V

AUDIO L IN AUDIO R IN R/C B G

Speaker terminal board J4403 SCART TERMINAL

Mother board

Amplifier board (A)

DVD traverse mechanism

CN101 CN201
F+,FT+,T-

PD(CD) PD(DVD) TRDRV

Q101 Q102
CDLDCUR

IC505 DRAM
MA0 to 13 MD0 to 31 DQM0 to 3 CS0-,RASCAS-,WE-

SAFETY

S2UDT,SCLK INTP,U2SDT CS,CPURST SYS-PON DVD-PON ILUMI-DIM ILUMINATION TU-DI,TU-DO TU-CK,TU-CE TU-PON SW-PON

Q4701 BACKUP & DET.
INH

IC201 DRV.
RM+ RM-

FODRV DVDLDCUR TRSDRV /DRVMUTE

IC301 SODC

X301 16.9MHz

X571 27MHz

Q4831 SAFETY DET.

IC431 VIDEO DRIVER
DVD-110 C

J401 Mini Din CONN. SPEAKER & ILLUMI.

LFE,FR,FL SL,SR,C P.ON

FCIN SLIN SRIN

CN401 CN403 CN404

CN501 CN503 CN504 CN151

CN521 CN522 CN531 CN532

CN251 CN252 CN351 CN352

CN1

Q545
SROUT

FG,SBRK SPDRV

STD0 to 7,AVRTM STCLK,STVALID STEN ODCIRQ ODCIRQ2 ADSCIRQ SODCCS /DRVMUTE /SPMUTE

RESET-IN /RST DVD-118 Y

J4401 S-VIDEO OUT COMPOSITE

FCOUT SLOUT SROUT PRT

IC201 POWER AMP.

CN105 CN104 CN103 P901

CN402 J403 J404 J402 CN101

RY403

DVD traverse mechanism

H1+,H1-,H2+,H2H3+,H3-,SM1 to 3,VH

IC251 SPINDLE MOTOR DRIVER
LSENSOR

IC501 PANTERA-2
AD4 to 19 AD0 to 15 ALE LA0 to 3 ACK,PCS0 PWE0

COUT YOUT CrOUT CbOUT TX

DVD-110 DVD-112 DVD-114 DVD-118 SPDIF

CN551

Q4702 IC472 IC471 RESET SYSTEM X4701 MICOM 8MHz

DVD-118

Q4811 Q4812 SW-PON
SWPON S-MUTE

VIDEO OUT
VIDEO-MUTE1 VIDEO-MUTE2 VIDEO-YCMIX VIDEO-RGB VIDEO-LPF

FCOUT

FCOUT SLOUT

RY402

5-CD IC1 CHANGER POSITION MECHANISM SENSOR
SUB TRAY END SW IC1,IC2 TRAY POSITION MOTOR DRIVER
POS_UP POS_DOWN TR_OP TR_CL

IC406 IC407 LATCH
LADD4 to 19

Q2101 Q2201 Q2301

IC404 EEPROM
STEDSW CLSWT1 to 5 STSTSW,MTOPSW POSMUP,POSMDN MTOP,MTCL

M
TRAY POSITION MOTOR SUB TRAY START SW

M.TR_OP TR1_CL TR2_CL TR3_CL TR4_CL TR5_CL S.TR_ST

Power supply board

CN561

IC405 FLASH ROM

SSPCLK0 SSPOUT0 SSPIN0 INTP CPURST FLCSS2UDT SCLK INTP CPURST

SLOUT SROUT
FLOUT FROUT

Amplifier board (B)
LFEIN FLIN

EPDI,EPDO EPCS,EPSK

IC403 SUB MICON

IC951 D5V IC901 SWITCH REG. REG. T901 POWER TRANS.
B5V

CN501 FW571 FW561

Q4801 Q4802 S-MUTE DRVER
SMUTE

AM-BEAT

NTSEL

CN407 CN409 CN408

Q4821 AM-BEAT CUT

S4401 RGB/YC SW Q4703
AVVLR

FLOUT FROUT J4891 AV COMPULINK

RY401

DISPRST,DISPBUSY,DISPCS DISPCK,DISPD2S,DISPS2D

+35V -35V +17V -17V

FRIN

IC473
SELECT3 SELECT4 U2SDT,CS

AVC-IN,AVC-OUT

AC IN

Q951Q953 FL&-VDISP SW

F1,F2 -VDISP

SYS-PON

Q4951 Q4952
SCART-LIN SCART-RIN TU-L TU-R

SAFETY,DSP-RST,DSP-RDY,DSP-COM DSP-STAT,DSP-CLK,AUX,TV/TU,VOL-STB VOL-DATA,VOL-CLK,SWPON,SMUTE D.O-MUTE TV/TU-L TV/TU-R HP-L HP-R HP

RY101

T101 POWER TRANS.

D151 D152

LFEOUT FLOUT FROUT PRT

IC301 POWER AMP.

CN102

CN502 CN501 FW901 FW902 CN416/CN402 CN403/CN404 CN405 CN415
DVD-PON B5V D5V

Q3101 Q3201

Q954,Q955 DVD5V SW
DVD-5V D5V

DVD-PON PON B5V,D5V

IC492 TV/TUNER SELECT SW

Phone jack board
HP HP-L HP-R

IC601 HP AMP.

HP

Q501 to Q505 POWER CONTROL & PROTECTOR Q511 to Q517 MUTE CONTROL Q521 to Q525 PROTECTOR
+12V

Q3301

CN410

CN2 CN3
TR1_CL to TR5_CL M.TR_OP

DVD-5V DVD-3.3V DVD-5V M9V +12V -12V

TRAY1 to 5 CLOSE SW

TRAY OPEN SW DIODE BRIDGE

IC953 B5V REG.

DVD-5V

Q964 Q965 3.3V REG.
+12V -12V

DSP board
IC404 RAM
A0 to A16 I/O1 to I/O8 OE-,CE-,WE-

DVD-3.3V M9V +12V,-12V

X401 24.576MHz IC403 DSP

Q2501 Q2502
MUTE RX0 TX0

CN411

IC153 6CH VOL.

M9V

Q2521 Q2561 Q2581

IC158 Q1131 IC159 Q1133 Q1135 IC160 AMP.
S_MUTE

J1103 SYSTEM CONN.

CN401

AC IN

Q958 to Q961 +/-12V REG.

DIGITAL0 FORMAT CHANNEL ERR,MICSRST_DET RX0

VOL_STB VOL_DT VOL_CK

Q531,Q532 LOW VOLTAGE DETECTOR
+17V -17V

Q151 +12V_REG.
+17V

SW.P.ON

F1,F2 -VDISP

IC408
HP_OUT_L HP_OUT_R

IC409

D_OUT_MUTE DSPCOMMAND DSPSTATUSDSPREADY DSPCLK

MIDIO,MIACK-

DIGITAL IN

Front board
JS501 IC502 REMOCON IC501 DISPLAY MICOM
G1 to G14 P1 to P35 REMOCON DATAIN CLOCK INITIAL RESET VOL1 VOL2

STANDBY LED

F1,F2,-VDISP B5V,D5V STANDBY VOL-1,VOL-2 STAND-BY REMOCON

MICK-,MILPDSP_RST

+35V -35V

+17V -17V

TU-PON RDS-CLK RDS-DATA Q4091 RDS-ST Q4092 TU9V IC481 REG. RDS TU-L
TU-DI TU-DO TU-CK TU-CE ILUMI-DIM ILUMINATION TU9V TU-R

IEC958 SWPON SMUTE

IC406 DSP MICOM

MUTE

CN412

CN601

IEC958

Operation board
S571 to S577 OPERATION SW

KEY3,KEY4 DISC4-1 DISC4-2 DISC5-1 DISC5-2 DI-DT,DI-CK DI-CS,DI-RST

CDTI CCLKCS-

ASW1 ASW2 SDTI1 to 3 SDTO,BCLK LRCLK LOUT1 to 3 ROUT1 to 3

IC531 IC561 IC581 IC591 AMP. IC510 IC511 AMP.
L-IN R-IN AUX TUNER TUNERL TUNERR

X501 8MHz
KEY3 KEY4

Q1251 Q1252

IC151 INPUT

J6001

LED board
ILLUMI. LED

DI501 FL DISPLAY

Connect board

KEY1,KEY2 LED

S501 to S510 DISC_KEY

Q4851 Q4852

Tuner pack

IC401 CODEC

LIN+,LINRIN+,RIN-

SELECT

J1101 AUX IN

2-1