Toshiba DKR-4, DR-4 Schematic

SERVICE MANUAL

DOCUMENT CREATED IN JAPAN, Jul., 2005

CIRCUIT DIAGRAMS

DIGITAL VIDEO

DVD VIDEO RECORDER

FILE NO. 810-200531

D-R4SU D-R4SC

D-KR4SU

Mar., 2005

S

+

NP

104

10x10

4

pF (0.1mF)

Temperature characteristic (or Temperature characteristic+ Static electricity capacity tolerance)

SECTION 3

SERVICING DIAGRAMS

1. CIRCUIT SYMBOLS AND SUPPLEMENTARY EXPLANATION

1-1. Precautions for Part Replacement

• In the schematic diagram, parts marked (ex.

F801) are critical part to meet the safety regulations,

so always use the parts bearing specified part codes

(SN) when replacing them.

1-2. Solid Resistor Indication

Unit None ........... W

K ........... kW

M ........... MW

Tolerance None ........... ±5%

B ........... ±0.1%

C ........... ±0.25%

D ........... ±0.5%

F ........... ±1%

G ........... ±2%

K ........... ±10%

M ........... ±20%

Rated Wattage (1) Chip Parts

None ......... 1/16W

(2) Other Parts

None ......... 1/6W

Other than above, described in the Circuit Diagram.

Type None ........... Carbon film

S ........... Solid

R ........... Oxide metal film

M ........... Metal film

W ...........Cement

FR ........... Fusible

• Using the parts other than those specified shall violate

the regulations, and may cause troubles such as

operation failures, fire etc.

Eg. 1

100k

Rated Wattage Type Tolerance

Fig. 3-1-1

SERVICING DIAGRAMS

1-3. Capacitance Indication

Symbol

Unit None ........... F

Rated voltage None ........... 50V

Tolerance (1) Ceramic, plastic, and film capacitors of which

Temperature characteristic None ........... SL

(Ceramic capacitor) For others, temperature characteristics are

Static electricity capacity Sometimes described with abbreviated letters as (Ceramic capacitor) shown in Eg. 3.

........... Electrolytic, Special electrolytic

........... Non polarity electrolytic

........... Ceramic, plastic

M

........... Film

........... Trimmer

m ........... mF

p ........... pF

For other than 50V and electrolytic capacitors, described in the Circuit Diagram.

capacitance are more than 10 pF.

None ........... ±5% or more

B ........... ±0.1%

C ........... ±0.25%

D ........... ±0.5%

F ........... ±1%

G ........... ±2%

(2) Ceramic, plastic, and film capacitors of which

capacitance are 10 pF or less.

None ........... more than ±5 pF

B ........... ±0.1 pF

C ........... ±0.25 pF

(3) Electrolytic, Trimmer

Tolerance is not described.

described. (For capacitors of 0.01 mF and no indications are described as F.)

Eg. 2

Temperature response

Eg. 3

100

m

Rated voltage

Fig. 3-1-2

Fig. 3-1-3

SECTION 3

Tolerance

1-4. Inductor Indication

Type name

10

m

Type Tolerance

Unit None ........... H

m ........... mH

m ...........mH

Tolerance None ........... ±5%

B ........... ±0.1%

C ........... ±0.25%

D ........... ±0.5%

F ........... ±1%

G ........... ±2%

K ........... ±10%

M ........... ±20%

1-5. Waveform and Voltage Measurement

• The waveforms for CD/DVD and RF shown in the

circuit diagrams are obtained when a test disc is

played back.

• All voltage values except the waveforms are expressed

in DC and measured by a digital voltmeter.

1-6. Others

• The parts indicated with "NC" or "KETU" etc. are not

used in the circuits of this model.

Eg. 4

Fig. 3-1-4

Eg. 5

Fig. 3-1-5

2. PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM

LEADS CABLE

CN105

GND

5 4

FL+5V

31515

W102

VKK-31V

21414

FL(-)

11313

FL(+)

CN101 CN701 ON/OFF +1.5V ON/OFF +3.3V

ON/OFF +5V

12 12

GND GND

11 11 10 10 11 11

GND POWER_ON_0 POWER GOOD

POWER_ON_1

99 10 10 88 9 77 8

EVER +5V

CPU+5V

ON/OFF +32V

ON/OFF +9V

ON/OFF +12V

EVER +6V

FAN_CNT

W701

66 7 55 6 44 5 33 4 22 3 11 2

Vkk

CN103

3 2

GND

1

ON/OFF +1.5V ON/OFF +3.3V

ON/OFF +5V

GND GND GND

POWER_ON0

POWER GOOD

EVER +5V

CPU5V

ON/OFF +32V

ON/OFF +9V

ON/OFF +12V

EVER +6V

Vkk

EU02 POWER

12345

VKK-31V

FL+5V

W102

FL(+)

GND

FL(-)

EU03A FRONT (R)

D-GND

D+3.3V

D-GND

D+3.3V

D-GND

CN708

D+5V

1413121110

987654321

B-B

1413121110

987654321

D-GND

CN308

D-5V

D-GND

D-3.3V

PARALLEL

FL+5V

33

LED1

22

LED2

11

W105

W105AW105

EU56

FL+5V

LED1 LED2

FRONT (LED)

EU55

PARALLEL

RMT

66 55

GND

DRIVER_SCK

44 33

DRIVER_CS

22

DRIVER (D-T) DRIVER (T-D)

W103

11

W103AW103

RMT GND

DRIVER_SCK

DRIVER_CS DRIVER (D-T) DRIVER (T-D)

EU05 MOTHER

EU03B FRONT (L)

DRIVER_SCK

DRIVER (D-T)

DRIVER (T-D)

DRIVER_CS

W104

1234567

W104

1234567 DRIVER (T-D)

CN703

KEY2

GND

RMT

LEADS CABLE

DRIVER (D-T)

DRIVER_SCK

DRIVER_CS

KEY2

GND

RMT

KEY1

8

KEY1

FRONT JACK

VIDEO_COMP

AUDIO_R

AUDIO_L

W101

GND

11

10

987654321

W101

11

10

987654321

AUDIO_R

AUDIO_L

CN702

GND

VIDEO_C

VIDEO_Y

2S_SW

GND

LEADS CABLE

VIDEO_COMP

VIDEO_C

VIDEO_Y

2S_SW

GND

Timer F/W WRITE

10

987654321

RXD_OUT

TXD_OUT

CN710

L-GND

HIZ

-

TUNER+5V TUNER+5V

AUDIO/SIF_OUT

U/V_VIDEO U/V_VIDEO

L-GND

WB01A

+32V GND

SCL SDA AFT

GND

TIMER_RESET

WRITE_ENABLE

CPU+5V

CNB01 TUNER+5V TUNER+5V

9 8 7 6 5 4 3

AUDIO/SIF_OUT 2 1

+32V GND SCL SDA AFT GND

GND

FFC

WB01

1

TCSN9082PA20T (TUNER)

MB01

EU05A

EMMA-SIG-DET EMMA-SIG-DET

CNW01

D-GND

D+1.5V

D-GND

PB-ACK

IEC958

A-GND

2625242322212019181716151413121110

A-GND

PB-LRCK

PB-DATA

PB-BCK

SPI-DA

SPI-CK

SPI-CS

C-OUT

V-GND

A-GND

V-GND

Y-OUT

987654321

RXD(R-T)

TXD(T-R)

CB-OUT

CN901

1413121110

CTS(R-T)

CR-OUT

CY-OUT

B-B

2625242322212019181716151413121110

PB-DATA

PB-BCK

D-GND

D-1.5V

CN302

PB-ACK

IEC958

SPI-CK

A-GND

SPI-DA

A-GND

PB-LRCK

SPI-CS

987654321

V-GND

C-OUT

V-GND

A-GND

V-GND

Y-OUT

1413121110

RXD(R-T)

TXD(T-R)

CR-OUT

CY-OUT

CTS(R-T)

CB-OUT

CN301

REC_DATA

REC_BCK

RTS(T-R)

D-GND

A-GND

987654321

B-B

987654321

REC_DATA

REC_BCK

RTS(T-R)

D-GND

A-GND

REC_LRCK

V-GND

A-GND

V-GND

CV/SY

-/SC

LAN

REC_LRCK

A-GND

V-GND

CV/SY

-/SC

1234567

CN201

TPO+

TPO-

8

GND

TPI+

TPI-

1234567

FLSSHW-X

CN305

D3.3V

CTS2

RTS2

232C

TXD2

8

RXD2

GND

TUNER UNIT

CN104

+12V

12345

FAN +12V

CN104-1

GND

+12V

GND

+5V

6

12341

FAN GND

GND

CN102

GND

+5V

2

LEADS CABLE

B_DRESET

D_GND

B_DD7

B_DD8

B_DD6

CN307

123456789

B_DD12

B_DD10

B_DD9

B_DD5

B_DD13

B_DD11

B_DD2

B_DD3

B_DD4

B_DD1

10111213141516171819202122232425262728293031323334353637383940

B_DD15

B_DD14

B_DD0

W051

B_DMAREQ

B_DIOW

D_GND

NC

B_DMACK

B_IORDY

B_DIOR

D_GND

B_INTRQ

D_GND

B_DA1

NC

D_GND

B_CS1

B_CS0

B_CS2

B_DA0

NC

FFC

FAN

W801

10111213141516171819202122232425262728293031323334353637383940

Reserved

DMARQ

DD13

DD10

DD11

DD6

DD9

DD5

DD4

DD14

DD12

DD1

DD3

DD0

DD2

DIOW

DD15

GND

DMACK

IORDY

CSEL

DIOR

GND

TOSHIBA DRIVE

PDIAG

INTRQ

GND

DA1

NC

DASP

GND

DA0

DA2

CS0

CS1

LEADS CABLE

+12V

GND

12345

123456789

RESETX

GND

DD7

GND

+5V

6

DD8

EU01 DIGITAL

memo

W101 LEADS CABLE 11 175 W102 LEADS CABLE 05 280 W103 PARALLEL CABLE 06 W104 LEADS CABLE 08 175 W105 PARALLEL CABLE 06 W701 LEADS CABLE 15 250 W801 LEADS CABLE 06 180

memo

W051 FFC 40 290 WB01 FFC 11 90

RAM1 RAM DRIVE

Fig. 3-2-1

3. BLOCK DIAGRAMS

3-1. Overall Block Diagram

DVD Recorder Drive

Type: DAV-WR412

S-in

C_Video-in

Audio-in L/R

S-in

C_Video-in

Audio-in L/R [Front Panel]

VHF/UHF

OUT

Input selection part

ICX03/ICX04

VideoINPUT Line Selector

MM1140XF

IN_1

IN_2

& MM1113

IC905

Audio INPUT Line Selector

CD4052BPWR

IC904

Audio

AD Converter

AK5357ET

IC305

MB01

IN

V/U Tuner

4.0MHz

ICB01

MMPX DECORDER AN5832A

16kbit

EEPROM

27.0MHz

24.576MHz

uPD61176F1-187-JN2-A

FRAME SYNC ENCODE ENCRIPT ATAPI DRV DECRIPT DECODE GRAPHIC NTSC ENCODE MAIN CPU

32.768KHz

12.5MHz

IC301

IC700

IC901

Audio D/A Converter PCM1755DB

IC314

64Mbit

FLASH ROM

IC313

32Mbit

FLASH ROM

IC311, IC312

256Mbit DDR SDRAM

X2

ANALOG CIRCUIT

VIDEO ANALOG CIRCUIT

IC902

Audio LPF &Amplifier

RC4580IDR

ICW01

Video Driver MM1568DJB

Lch

OUT_1

Rch Lch

OUT_2

Rch

OPTICAL. DIGITAL.OUT

Audio OUT

COMPOSITE

Video OUT

SVideo

OUT

Y P

B

P

R

COMPONENT

Video OUT

DC FAN

POWER_UNIT

MPN5226

AC 120V

AC IN

LED

Door SW

Timer CPU

uPD784225Y

IC101

FL_Driver

PT6315

FL_Tube

FRONT PANEL UNIT

KEY

R.S

Digital Board Mother Board

Tuner Unit Board

Fig. 3-3-1

2 5 6 7 89

4. CIRCUIT DIAGRAMS

10134

A

B

C

4-1. Power Supply Circuit Diagram

D

E

F

G

Fig. 3-4-1

A

B

C

134

4-2. Front Circuit Diagram

4-2-1. Front Jack Circuit Diagram

2 5

D

E

F

Fig. 3-4-2

4-2-2. Front (LED) Circuit Diagram

G

Fig. 3-4-3

A

B

C

134

4-2-3. Front (L) Circuit Diagram

2 5

D

E

F

Fig. 3-4-4

G

A

B

C

2 5 6 7 89

4-2-4. Front (R) Circuit Diagram

10134

D

E

F

G

Fig. 3-4-5