JVC TH-A30 Schematics

SCHEMATIC DIAGRAMS

DVD DIGITAL THEATER SYSTEM

TH-A30

Area suffix

J ------------------- U.S.A. C ---------------- Canada

TH-A30

STANDBY/ON

AUDIO

TV/VIDEO

PROGRESSIVE

VCR

TV

TV CHANNEL

DISPLAY

STEP

AUDIO/

SUBTITLE

TV VOLUME

FM MODE

VCR

DVD FM/AM AUX

CONTROL

TUNER PRESET

DOWN UP

FF

REW

VCR CHANNEL

TUNING

B.SEARCH F.SEARCH

ENTER

VOLUME

TOP MENU

MENU

RETURN

MUTING

RM-STHA30J

DVD THEATER SYSTEM

Contents

SP-XSA30 2

STANDB

Y

STANDBY/ON

AUDIO/FM MOD

D

SP

SP-XA30 3

E

V

OLUME

SOURCE

DVD DIGITAL THEATER SYSTEM TH-A

30

DIGITAL

SURROUND

DIGITAL

XV-THA30 SP-WA30

Block diagrams Standard schematic diagrams Printed circuit boards

2-1 2-4 2-12~21

No.21128SCH

Aug. 2002

TH-A30

In regard with component parts appearing on the silk-screen pr inted side (par ts 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 diagrams

Main section

TH-A30

AUX1

VFD

UIC1

MICOM

MUX-OUT R IN R

IC5

POWER

AMP.

IC6

POWER

AMP.

IC7

POWER

AMP.

U13

RL

U7

FUNCTION IC

RR

U12

FUNCITON IC

C

W

U2

FUNCTION IC

FL

AUX L

TUN L

AUX R

TUN R

MUX-OUT L IN L

FR

U9

TUNER

U11

PROLOGIC IC

LPF

FL

(1/2)

FR

U1

LPF

(2/2)

LPF

(1/2)

LPF

(2/2)U3LPF

C

RL

W

RR

U6

DAC

AK4355

D3D2D1

D0

(1/2)

U5

LPF

(2/2)

DVD PACK

(refer to next page)

2-1

TH-A30

DVD mecha block section

&

ATAPI

MPEG

Parallel/ Serial

DVD Interfa ce

I/F

EDP

C3 ECC

MCU I/ F

VIDEO OUT

AMP PARTS

416C256

4M DRAM

DU3

DVD ROM CONTROLLER

M5701/ M5705

M6759

MICOM

ERROR

I/ V AMP

RF&FOCUS

ERROR

I/ V AMP

TRACKING

APC.LASER

RU1 RF AMP SP3721

Video

Progressive

Graphics

BUFFER

SWITCHING

SIGNAL

BUFFER

Output

Video

Five 10-bit

Video

Encoder

Engines

7612

KSA812

DACs

Audio

Output

Audio

Output

SPARC

Microp rocessor

U8

MPEG DECODER

JTAG

Interfa ce

Lock

Loop

Phase

ZIVA5

13.5MHZ Cry stal

RAM

ARBITER

BCA

DATA

&LPC

CONTROL

DVD-D SP

SEPARATOR

LOGIC

HARDWARE

LOOP

SERVO

TRACKING

TARGET

SEARCH

64M SDRAM

CD- DSP

TAL

SERVO

DIGI

SPINDLE

SERVO LPF

EFM

COMPARATOR

W986432DH-7

Analog

Digital Vide o

Interlac e/

2-2

SDRAM C ONTROLLER

Processo r

Decryp tion

ZIVA

---------

A/ V CORE

Audio

Input Unit

FOCUS OK

DETECT DEFECT

GEN

DETECT MIRROR

LOOP

SERVO

FOCUS

PICK UP

& I/V AMP

FEED

MOTOR

MICOM DATA INTERFACE

MOTOR

ACTUATOR

LOGIC DECODER

DRIVER

Track Buffer

&EQ

RF AGC

CONTROL

System Co ntrol Bus

ASYNC B US/ IR/GPIO/SPI/UART1&2/A TAPI/IDC

Parallel/ Serial

DVD Interfa ce

ATAPI 4 0PIN

DECK ASS’ Y

DISC

MOTOR

DISC

MOTOR

DRIVER

HOST

MEMORY

SST39VF800A

< MEMO >

TH-A30

2-3

TH-A30

s

Standard schematic diagrams

Main section /Power supply section /Video signal output section

5

4

To Tu ne r Pa c k

To J 7

Sheet 2/4

3

2

1

SHEET

NUMBER

CIRCUIT DESCRIPTION

Main /Power supply /Video signal output

1/4

FL display & System control /DSP

2/4

DVD loader

3/4

DVD MPEG

4/4

To J 6

Sheet 2/4

To J 5

Sheet 2/4

Tuner

Video

2-4

AB CD

TH-A30

To J 2

Sheet 2/4

To DJ6

Sheet 3/4

uner signal

ideo signal

To FCW1 Sheet 2/4

Front signal

Center signal

Rear signal

Parts are safety assurance parts. When replacing those parts, make sure to use the specified parts.

To J21

Sheet 4/4

VW2

To J10

Sheet 2/4

SHEET 1/4

E F G

2-5

TH-A30

4

FL display & System control section / DSP section

To J14

Sheet 4/4

To FCW1-1

Sheet 1/4

5

4

3

2

To J10-1

Sheet 1/4

J10

1

2-6

To PW3 Sheet 1/4

AB CD

To CW7 Sheet 1/