Toshiba DKR-2, DR-2 Service manual

SERVICE MANUAL

DIGITAL VIDEO

DVD VIDEO RECORDER

FILE NO. 810-200413

D-R2SU D-R2SC

D-KR2SU

Apr., 2004

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

7 23

FL_5V

6 22

EVER_5V

5 21

Vkk NC

4 20

W100

3 19

FL(-) FL(+)

2 18

GND

1 17

CN101 PowerON0 PowerON1 FAN_CNT

PowerGood

CPU5V

GND

ON/OFF5V

GND

ON/OFF3.0V

GND

ON/OFF-9V

GND

ON/OFF+9V

GND

EVER6V

GND

EVER6V

GND

NC

GND

ON/OFF37V

GND

23 22 21 20 19 18 17 16 15 15 14 14 13 13 12 12

B-B

11 11 10 10

9 8 7 6 5 4 3 2 1

16

9 8 7 6 5 4 3 2 1

CN701 PowerON0 PowerON1 FAN_CNT

LNB_ON/OFF

PowerGood

CPU5V

GND

ON/OFF5V

GND

ON/OFF3.0V

GND

Vkk

GND

ON/OFF+9V

GND

EVER6V

GND

EVER6V

GND

ON/OFF15.3V

GND

ON/OFF37V

GND

1234567

EVER+5V

W100

FL_5V

FL(+)

FL(-)

GND

Vkk

FRONT RIGHT

Power_LED

LED_Scan2

Power_SW

Eject_SW

REMOTE

CN102

GND

123456789

W053

181716151413121110

LED_Scan2

Power_LED

Power_SW

Eject_SW

REMOTE

CN702

GND

CR-OUT

CB-OUT

CY-OUT

CNW01

CV-OUT

V-GND

Y-OUT

EU03A

LED_Scan1

LED_Scan0

LED_Out3

LED_Out1

LED_Out2

101112131415161718

FFC

987654321

LED_Scan1

LED_Scan0

LED_Out3

LED_Out1

LED_Out2

A-GND

C-OUT

SPICS

SPIDA

SPICK

12345

CN170

TPAop

TPAon

TPBon

TPBop

W100R W150

5

Power_SW

EVER+5V REMOTE

GND

4 3 2 1

PARALLEL

W101

5 4 3 2 1

Power_SW Power_LEDPower_LED

EVER+5V REMOTE

GND

EU55 JACK

GND

EU03B

Driver_SCK

Driver_Out

Driver_CS

LED_Out0

Driver_In

GND

FRONT LEFT

10

Driver_SCK

Driver_Out

Driver_CS

LED_Out0

Driver_In

GND

987654321

CN703

EE40

GND

RxD

-

52806-1010

WriteEnable

TimerReset

5vcpu

GND

TxD

-

EU05 MOTHER

PB-LRCK

PB-DATA

PB-BCK

REC-ACK

PB-ACK

IEC958

A-GND

Video_COMP

Audio_R

Audio_L

CN171

GND

123456789

W058

11

10

987654321

Video_COMP

Audio_R

Audio_L

CN704

GND

52806-1110

CN902

GND

Video_C

Video_Y

Line2_S

GND

10

11

FFC

Video_C

Video_Y

Line2_S

GND

REC_DATA

REC_LRCK

REC_BCK

CV/Y-IN

GND

C-IN

DV connector

W170

1394 SHIELD LEADS CABLE

RXD(E-T)

TXD(T-E)

RTS(T-E)

CTS(E-T)

CN706

TPO+

TPO-

GND

TPI+

TPI-

W004

EU02 POWER

CN104

GND

12V

5V

123

4

LEADS CABLE

W008

CN106

FAN

CN102

D+3.3V

D+1.5V

MOTOR(+)

1

GND D+5V GND

GND

MOTOR(-)

2

1 2

LEADS

3

CABLE

4 5 6 7 8

W016

9 10 10 11 11 12 12

LEADS CABLE

23222120191817161514131211

CR-OUT

CB-OUT

CY-OUT

CV-OUT

V-GND

CN508

GND

1

D5V

2

GND

3

D3.3V

4

GND

5

D3.3V

6

GND

7

D1.5V

8

GND

9

D1.5V

GND

D1.5V

MOUNT

CN506CNZ01

Y-OUT

127301123K2

52559-4082

B_DRESET

D_GND

B_DD8

B_DD6

B_DD9

B_DD5

B_DD7

123456789

RESETX

DATA6

DATA9

DATA5

DATA7

DATA8

GND

B_DD10

DATA10

W051A

12V(YELLOW)

123

GND(BLACK)

5V(RED)

4

DRESETB

D_GND

123456789

RAM DRIVE

RESETX

GND

B_DD10

B_DD7

B_DD8

B_DD6

B_DD9

B_DD5

DATA10

DATA7

DATA8

DATA6

DATA9

DATA5

10

987654321

B-B

10

987654321

PB-LRCK

PB-DATA

V-GND

A-GND

C-OUT

B_DD11

B_DD4

B_DD3

10111213141516171819202122232425262728293031323334353637383940

DATA11

DATA4

DATA3

B_DD11

B_DD4

B_DD3

10111213141516171819202122232425262728293031323334353637383940

DATA11

DATA4

DATA3

PB-BCK

SPICS

SPIDA

SPICK

B_DD14

B_DD12

B_DD13

B_DD1

B_DD2

B_DD0

W051

DATA13

DATA14

DATA12

DATA0

DATA2

DATA1

B_DD12

B_DD13

B_DD14

B_DD2

B_DD1

B_DD0

DATA12

DATA13

DATA14

DATA2

DATA1

DATA0

PB-ACK

A-GND

B_DD15

D_GND

NC

DATA15

GND

RSV

B_DD15

D_GND

NC

DATA15

GND

RSV

REC-ACK

IEC958

A-GND

B_DMAREQ

B_DIOR

BDIOW

D_GND

NC

FFC

DMARQ

DIOWX

DIORX

GND

ATAPI-FFC-UNT

B_DMARQ

B_DIOR

BDIOW

D_GND

NC

DMARQ

DIOWX

DIORX

GND

B_IORDY

IORDY

B_IORDY

IORDY

B_DMACK

NC

DMACKX

SPSYNC

B_DMACK

NC

DMACKX

SPSYNC

B_INTRQ

D_GND

B_DA0

B_DA1

B_CS2

B_CS0

NC

IOCS16X

PDIAGX

INTRQ

GND

B_DINTRQ

D_GND

INTRQ

GND

NC

IOCS16X

DA1

B_DA1NCB_DA0

PDIAGX

DA1

CS0X

DA0

DA2

B_DA2

B_CS0

CS0X

DA0

DA2

131211

10

CN401

131211

A_GND

987654321

10

987654321

REC_DATA

REC_LRCK

REC_BCK

A_GND

B-B

V_GND

C-IN

RXD(R-T)

TXD(T-R)

RTS(T-R)

CTS(R-T)

CV/Y-IN

V_GND

1234567

CN201

TPO+

TPO-

GND

8

no use

8

GND

TPI+

GND

TPI-

1234567

FLSSHW-X

CN501

D3.3V

CTS2

8

12345

CN500

TpAon

TpBop

TpBon

DGND

RXD2

TXD2

RTS2

GND

TpAop

EU01

B_DASP

D_GND

B_CS1 CS1X

DASPX

GND

B_DASP

D_GND

B_CS1

DASPX

CS1X

GND

DIGITAL

memo

W004 LEADS CABLE 05 120 W008 LEADS CABLE 04  250 W016 LEADS CABLE 12  260 W100 LEADS CABLE 07  140 W101 PARALLEL CABLE 05  58 W170 WIREAWG22M3L110 01  110

memo

W051 FFC 40 360 W051A ATAPI-FFC-UNT W053 FFC 18  210 W058 FFC 11 410

RAM1 RAM DRIVE

Fig. 3-2-1

3. BLOCK DIAGRAMS

3-1. Overall Block Diagram

uPD72852 1394 PHY

IC504

24.576MHz

S-in

C_Video-in

Audio-in L/R

S-in

C_Video-in

Audio-in L/R

S-in

C_Video-in

Audio-in L/R

VHF/UHF

Type: SD-W3002

DVDRAM/RWDrive

IN_1

IN_2

INPUT Line Selector

IN_3

MB01

V/U Tuner

ENG36501G

4.0MHz

IC301

uPD64011B 3D Y/C_DNR+ ADC+Decoder

IC302

16Mbit SDRAM

ICA01

Audio

AD Converter

AK5365

24.576MHz

OSC

27MHz

64kbit

EEPROM

PLL

12.288MHz

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

32.768KHz

12.5MHz

uPD72893 1394 A V LINK

uPD61171F1

Timer CPU

uPD784225Y

IC502

IC700

16Mbit SDRAM

IC512

IC503

IC901

Audio

D/A Converter

PCM1751

64Mbit

FLASH ROM

256Mbit

DDR-SDRAM

X4

IC515, IC516 IC520, IC521

ICA19

Audio LPF &Amplifier

ANALOG CIRCUIT

NJM2115

Audio OUT

VIDEO ANALOG CIRCUIT

Video OUT

OUT_1

Lch Rch

OPTICAL. DIGITAL.OUT

COMPOSITE Video OUT

SVideo

OUT

Y P

B

P

R

INTERLACE/PROGRESSIVE / COLOR DIFFERENCE Video OUT

DC FAN

POWER_UN IT

AC IN

MPN5216

AC 120 V

DV

IC101

FL_Driver

BU2879AK

FL_Tube

FRONT PANEL UNIT

R.S

KEY

--- Digital 1

--- Front

--- Audio

--- Timer

--- Tuner

--- Digital 2 (Audio/Video)

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

G

A

B

C

134

4-2-2. Front L Circuit Diagram

2 5

D

E

F

Fig. 3-4-3

G

A

B

C

2 5 6 7 89

4-2-3. Front R Circuit Diagram

10134

D

E

F

G

Fig. 3-4-4

4-3. Digital Circuit Diagram

4-3-1. Digital 1 Circuit Diagram

Fig. 3-4-5

4-3. Digital Circuit Diagram

4-3-1. Digital 1 Circuit Diagram