JVC SU-DH1-J Manual de usuario

SERVICE MANUAL

2006/3

SURROUND SOUND HEADPHONE ADAPTOR

XC04520063

SU-DH1-J/E

TABLE OF CONTENTS

1 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Model No.(Bottom)

Model No.

1-2 (No.XC045)

SPECIFICATION

SU-DH1-J/E

Playable format Dolby Digital (Dolby Surround EX), Dolby Pro Logic II, DTS (DTS-ES 6.1ch),MPEG-2 AAC, PCM

(Fs=44.1kHz, 48kHz)

Surround function Dolby Headphone (DH1/DH2/DH3), Dolby Pro Logic II (AUTO/MOVIE/MUSIC)

Input terminals Optical digital signal mini jack x 1, LINE IN signal cord with Gold plated stereo mini plug (3.5mm) x 1

Headphone output Stereo mini jack x 1

Power requirements Alkaline AA battery (DC 1.5V) x 2

Battery life approx. 10hours (using Alkaline AA battery), approx. 2.5hours (using Manganese AA battery)

Dimensions 82mm x 20mm x 86mm (W/H/D)

Mass approx. 99g (include Manganese AA battery)

Accessories Manganese AA battery (R6P) x 2 (for initial use), Carrying pouch x 1, Dual plug adaptor x 1

(No.XC045)1-3

SECTION 1

DISASSEMBLY

1.1 Disassembly method

(1) Remove the battery cover from the back of the main body, and then pull out the line-in cord from the slot.

(2) From the back of the main body, respectively remove the two screws A, and another two screws Battaching the bottom case.

(3) Turn the main body back to the original position, and then remove the top case.

(4) When removing the main board by lifting it up, the side panels L/ R will also be removed.

* Please fix boss 'a' part and the code in the bond of rubber after the code ties to boss 'a' part of the projection of the

bottom case when you install line in cord in the bottom case.

* When attaching the side panels L/ R, make sure to confirm that each switch (SW1, SW2) on the main board is firmly

placed in the hole of the each switch knob.

BACK

SIDE

BAA

Top case

Main board

Bottom case

Side panel R

Line IN cord

Boss 'a'

Bottom case

Battery cove

Side panel L

Switch knob

Bond of rubber

1-4 (No.XC045)

SECTION 2

TROUBLESHOOTING

2.1 Measuring instrument

• DC power supply (3V 500mA can be output.)

• Audio signal generator

• Vacuum Tube Volt Meter

• Oscilloscope

• DVD Player with optical digital output

2.2 About power supply

Please set the output voltage of the DC power supply to 3V, connect with SP1 and SP2 on the substrate as follows, and do the con-

firmation work.

SP1: The plus output of the DC power supply is connected.

SP2: Ground of the DC power supply is connected.

2.3 Analog signal input level

500mVrms

2.4 YES →Normal

NO →The voltage and the waves are abnormal.

2.5 Check method

C26

C45

C46

C50

C51

C54

C66

C67 C69 C70

C71

C78

C85

C86

D6 D7

D10

D11

IC4

IC8

IC9

IC11

R2 R3

R4 R5

R22

R23

R24

R26

R27

R28

R29

R30

R31

R32

R33

R34

R35

R36

R37

R40 R41

R43

R44

R45

R46

R69

R85

SW1

SW2

SW3

SW4

R90

C91

C92

C93

R95

C151

C152

K15

SP1 SP2

Symptom Check point Voltage and waves when

it is normal

Check part and breakdown parts

The power supply is not

turned on.

1 Both sides of F2 DC approx. 0V NO→Defect of F2

YES→check of 2

2 IC1 8pin DC approx. 3.3V NO→Defect of IC1

YES→check of 3

3 IC6 4pin DC approx. 1.3V NO→Defect of IC6

YES→check of 4

4 IC5 1pin DC approx. 3.3V NO→Defect of IC5

YES→check of 5

5 IC8 10pin f=10MHz NO→Defect of IC8 or Check on circuit in

surrounding.

YES→check of 6

6 IC8 7pin DC approx. 3.3V NO→Defect of IC8 or Check on circuit in

surrounding.

YES→check of 7

7 IC7 3pin f=12.288MHz NO→Defect of IC7 or Check on circuit in

surrounding.

YES→Defect of IC2 or Check on circuit in

surrounding.

(No.XC045)1-5

Analog input :

The sound is not emitted.

8 C5, C6 Positive pin Sine wave NO→Connected check from J4 to C4, C5

YES→Check since 9

9 C28, 29 Positive pin Sine wave NO→Defect of IC2, IC3

YES→Check since 10

10 IC9

2pin (L ch),4pin (R ch)

(The volume is confirmed

in the maximum.)

Sine wave NO→Defect of R99 and Check on circuit

in surrounding.

YES→Check since 11

11 IC9 10pin DC approx. 3.3V NO→Check of Q4, Q1, Q5, IC8

YES→Check since 12

12 IC9

9pin (L ch),7pin (R ch)

(The volume is confirmed

in the maximum.)

Sine wave NO→Defect of IC9 and Check on circuit

in surrounding.

YES→J3 Check on circuit in surround-

ing.

Digital input :

The sound is not emitted.

13 IC10 1pin

(The DVD player etc. are

connected with an optical,

digital input.)

NO→Defect of J2

YES→IC10 and Check on circuit in sur-

rounding.

LED doesn't light.

(D4 to D11)

14 IC11 13pin DC approx. 0V NO→Defect of IC8 and Check on circuit

in surrounding.

YES→Defect of IC11 and Check on cir-

cuit in surrounding.

Symptom Check point Voltage and waves when

it is normal

Check part and breakdown parts

(No.XC045)

ACCESSORIES CATEGORY 1644, Shimotsuruma, Yamato, Kanagawa 242-8514, Japan

Victor Company of Japan, Limited

VPT

Printed in Japan

BCD EFG

4M Serial Flash Memory

IC4

M25P40VMN6P-X

MODE LED

D1-D8:SML-310VT-X

D9-D11:SML-310MT-X

Analog

Line in cord J4

Headphone Jack

X'TAL 12.288M

IC7

3.3V

1.25V

Low Battery. Detect

DIR Control

CODEC

Control

DC JACK

(JAPAN ONLY)

DSP

DD/PL /AAC/DTS

Decode

Dolby Headphone

IC2

DSPC56371-W

DH MODE SW4

PL MODE SW3

Optical Digital

input J2

DIR

IC10 AK4116VNP-W

System Control Micon

IC8

PIC16LF876A-W

LED DRIVER

IC11

MC74HC595DT-W

A/D D/A

IC3

AK4552VT-X

Headphone AMP

IC9

LA4534M-X

3.3V REG

IC1

NCP1410DM2G-W

1.3V REG

IC6

XC9211A133M

Xtal 10M

VOLUME

R99

BATTERY

1.5V 2

Block diagram

2-1 2-2

BCDEFG

IC9

IC8

IC10

IC11

IC2

C70

TP3

SW2

IC3

IC5

R14

C25

R101

C52

C55

C56

R42

C26

C53

C71

R21

R26

R20

C50

C29

C23

R35

R99 R27

C28 C40

C27

R90

SW1

C152

D10D9D8D7D6D5 D11

C54

R43 R44 R45 R46

R41R40R37

C75

R36

R30

R31

R85

R33

SW4

R23

R28

R34

R32

R25

SW3

R39

IC1

C18

C24

Q3 R19

IC6

C21

R102

R24

C41

R29

R13

C46

C85

CN3

IC4

C34

TP1

C36

C19

C22

C43

C31

C35

C37

TP2

C51

C45

C69

CN4

R22

C86

C78

C151

C102

C93

R95

K15

K16

C164 C163

C162

C161

R164 R163

R69

C11

R4R5

R83

C10

C15

C33

C32

R82

R38

C49

C48

C13

C103

C67

C12

C16

C76

R11R12

R15

R10 R9

C14

C30

IC7 R18

C42

C47

C38

C39

C44

C101

C68

C66

R68

R67

R66

C91

C92

R93

LA4534M-X

PIC16LF876A-W

AK4116VNP-W

MC74HC595DT-W

DSP56371-W

4.7U/6.3

2.2K

1K/0.1

4.7U/6.3

QSW0665-001

AK4552VT-X

BU4216G-W

NQR0251-001X

22/0.1

0.1U/50

0.15U

220U/6.3

NQR0251-001X

4.7

0.1U/50

0.15U

NQR0502-001X

470

VCC-3.3

470

220U/6.3

10U/6.3

47U/6.3

10K/0.1

NVQ0009-B14X

470

10U/6.3 10U/6.3

10U/6.3V

VCC-3.3

NQR0251-001X

VCC-3.3

NNZ0153-001

VCC-3.3

0.1U/50

NQR0251-001X

QSW0665-001

470/0.1

220p

0.1U/50

220/0.1 220/0.1 220/0.1 220/0.1220/0.1220/0.1220/0.1

NQR0251-001X

47U/6.3V

DGND

220/0.1

SML-310VT-X

220/0.1

1K/0.1

3.9K/0.1

VCC-3.3

10K/0.1

NSW0281-001X

220/0.1

47K/0.1

10K/0.1

VCC-3.3

NSW0281-001X

4.7

NCP1410DM2G-W

22uH/1A

470P

10U/10

VCC-3.3

RT1N144C 47K

XC9211A133M

220/0.1

AGND

10U/6.3

4.7K/0.1

SML-310VT-X

22UH/1A

0.15U/50

10U/16

RT1P441C

0.1U/50

LR-6

QGF1016C2-04W

M25P40VMN6P-X

0.1U/50

QAM0803-001

0.1U/50

LR-6

NNS0011-001X

47U/6.3

RT1N441C

47/6.3

47U/6.3

3.9K/0.1

QGF1007C4-05X

ICP-S1.2-X

NAX0813-001X

8.2K/0.1

0.1

220p

470p

22/0.1

0.22 0.22

0.001

4.7 4.7

RT1P441C

RT1N441C

10K

0.1U/50

33K/0.133K/0.1

47U/6.3

0.1U/50

1800P/50

12K/0.1

0.1U/50

10U/6.3V

NQR0251-001X

10U/6.3V

0.1U

SML-310MT-X

SML-310VT-X

SML-310MT-X

SML-310VT-X

0.056U/50

220U/10

150P/50

10U/6.3V

200K/0.1 27K/0.1330K/0.1

560K/0.1

330K/0.1 220K/0.1

470P/50 0.1U/50

NAX0846-001X 27/0.1

0.1U/50

VCC-3.3

0.01U

0.1

CTRL-CDTO

CTRL-CSN

CTRL-CDTI

CTRL-CLK

DSP-SDT1

MCLK12.288

SCK

MISO

MOSI

DSP-3.3

DSP-FST

LOB-OUT

DSP-SCKT

RESET-N

DIGI-IN

SPDIF

DSP-1.3

Standard schematic diagram

Main section

2-3 2-4

RIN

LIN

VSS

DEM0

DEM1

SDTO

ROUT

LOUT

VCOM

PDN

BCLK

MCLK

LRCK

SDTI

VA VSS VD

LIN

RIN

VCOM

LOUT

ROUT

MCLK

LRCK

BCLK

SDTO

SDTI

DEM0

DEM1

PDN

Modulator

Common Voltage

LPF

Decimation

filter

Decimation

filter

Interpolator

Serial I/O

Interface

Clock

Divider

Interpolator

AK4552VT-X(IC3):AD/DA Converter

RX0

DVDD

DVSS

XTI

XTO

6 7 8 9 10

LPCK

BICK

SDTO

DAUX

MCKO

INT1

CSN

CCLK

CDTI

CDTO

20 19 18 17 16

AVDD

AVSS

PDN

INT0

AK4116VNP-W(IC10):Digital audio receiver

MCKO

LRCK

BICK

SDTO

DAUX

PDN

CSN

CCLK

CDTI

CDTO

Clock

Generator

Audio

I/F

P I/F

Q-subcode

buffer

Error&

STATUS

Detect

AC-3/MPEG

Detect

INT1

INT0

DVDD

DVSS

RX0

AVSS AVDD R

DAIF

Decoder

Clock

Recovery

X'tal

Oscillator

XTI XTO

Description of major ICs

Power

switch

Mute

circuit

Bias

Amp1

Amp2

J47862-001(IC9):Stereo power amplifie

2-5 2-6

21 40

6180

5122 11

SHI

Interface

Triple

Timer

ESAI

Interface

ESAI_1

Interface

GPIO EFCOP

DAX

Peripheral

Expansion Area

PIO_EB

Address

Generation

Unit

Six Channel

DMA Unit

Bootstrap

ROM

Internal

Data

Bus

Switch

Clock

Gen-

erator

PLL Program

Interrupt

Controller

Program

Decode

Controller

Program

Address

Generator

EXTAL

RESET

PINIT/NMI

MODA/IRQA

MODB/IRQB

MODC/IRQC

MODD/IRQD

Data ALU

24 x 24+56 56-bit MAC

Two 56-bit Accumelators

56-bit Barrel Shifter

Power

Mngmnt.

JTAG

OnCE

DDB

YDB

XDB

PDB

GDB

24-Bit

DSP56300

Core

DAB

YAB

XAB

PAB

PM_EB

YM_EB

XM_EB

Y Data

RAM

48K x 24

ROM

32K x 24

X Data

RAM

36K x 24

ROM

32K x 24

Program

RAM

4K x 24

ROM

64K x 24

Memory Expansion Area

DSPC56371AF180(IC2):DSP

FB 8OUT

LBI

LBO

REF

7LX

6GND

5SHDN

(Top View)

_MAINSWOFD

GND

VDD

SENSEFET

VDD

COUT

GND

VDD

GND

CONTROL

LOGIC

_MAINSW2ON

_SYNSW2ON

Voltage

Reference _SYNSWOFD

_ILIM

Chip

Enable

SHDN

REF

_VREFOK

_PFM

_CEN

_PWGONCE

_ZCUR

LBO

OUT

LBI

GND

PFM

ZLC

ILIM

20 mV

RSENSE

J47866-001(IC1):DC-DC Converter

LOGIC DIAGRAM

SERIAL

DATA

INPUT

SHIFT

CLOCK

RESET

LATCH

CLOCK

OUTPUT

ENABLE

SHIFT

SQH

= PIN 16

GND = PIN 8

PARALLEL

DATA

OUTPUTS

SERIAL

DATA

OUTPUT

125

LATCH CLOCK

OUTPUT ENABLE

SQH

RESET

SHIFT CLOCK

GND

J47872-001(IC11):LED Controller

2-7 2-8

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