Toshiba SD-P1400U, SD-KP12U Service Manual

FILE

DOCUMENT CREATED IN JAPAN, June, 2004

REVISION 1

810-200403

NO.

SERVICE

DVD

MANUAL

VIDEO PLAYER

SD-P1400U

SD-KP12U

LASERBEAMCAUTIONLABEL

Whenthepowersupplyisbeingturnedon,youmaynotremovethislasercautionslabel.Ifitremoves,radiationoflaser

maybereceived.

PREPARATIONOFSERVICING

PickupHeadconsistsofalaserdiodethatisverysusceptibletoexternalstaticelectrocity.

Althoughitoperatesproperlyafterreplacement,ifitwassubjecttoelectrostaticdischargeduringreplacement,

itslifemightbeshortened.Whenreplacing,useaconductivemat,solderingironwithgroundwire,etc.to protectthelaserdiodefromdamagebystaticelectricity.

Andalso,theLSIandICaresameasabove.

Groundconductive wriststrapforbody.

Solderingiron withgroundwire orceramictype

1M

Conductivemat

Thegroundresistance betweenthegroundline andthegroundislessthan10

SAFTY NOTICE

LEAKAGE CURRENT CHECK

SAFTY PRECAUTIONS

Plug the AC line cord directly into a 120V AC outlet (do

not use an isolation transformer for this check). Use an

AC voltmeter, having 5000 per volt or more sensitivity.

Connect a 1500 10W resistor,paralleled by a 0.15uF 150V AC capacitor between a known good earth ground

(water pipe, conduit, etc.) and all exposed metal parts of

cabinet (antennas, handle bracket, metal cabinet

screwheads, metal overlays, control shafts, etc.).

READING SHOULD NOT EXCEED 0.3V

DVD VIDEO PLAYER

Measure the AC voltage across the 1500 resistor.

The test must be conducted with the AC switch on and

then repeated with the AC switch off. The AC voltage

indicated by the meter may not exceed 0.3V.A reading

exceeding 0.3V indicates that a dangerous potential

exists, the fault must be located and corrected.

Repeat the above test with the DVD VIDEO PLAYER

power plug reversed.

NEVER RETURN A DVD VIDEO PLAYER TO THE

CUSTOMER WITHOUT TAKING NECESSARY

CORRECTIVE ACTION.

AC VOLTMETER

(5000 per volt or more sensitivity)

Good earth ground

1500 10W

such as a water pipe, conduit, etc.

AC OUTLET

0.15uF 150V AC

Test all exposed metal. Voltmeter Hook-up for Leakage Current Check

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

NC

1

DVDVCC

2

V20

3

GND

4

F

5

E

6

CD/DVD SW

7

RF

8

C

9

D

10

B

11

A

12

VRCD

13

VRDVD

14

DVDMD

15

CDLD

16

GND

17

DVDLD

18

NC

19

AVCC

20

FCS-

21

TRK+

22

TRK-

23

FCS+

24

1 2 3 4 5 6

MECHANISM

SW101

1

DC

2

DCIN

3

POWERSW

4

GND

1 2

XS104

POWER PCB B

POWER PCB A

SPSP+ SL+ SLGND LIMIT

1 2 3 4 5 6 7 8 9 10 11 12

XS402 13 14 15 16 17 18 19 20 21 22 23 24

1 2 3 4

XS401

5 6

1 2 3 4

XS101

1234567

KEYIN3

DC

1

GND

2

KEYIN2

1234567

FUNCTION BUTTON PCB

KEYIN1

KEYIN0

KEYOUT0

MAIN PCB

XS403

8

KEYOUT1

KEYOUT2

KEYOUT3

8

JS103

JS104

JS105

1

LI-DC

2

LI-DC

3

LI-DC

4

GND

5

GND

6

GND

7

TS

8

GND

9

AUXSW

10

GND

11

Y1+

12

Y1-

13

C-OUT

14

GND

15

Y2+

16

Y2-

17

Y-OUT

18

Y3+

19

Y3-

20

VIDEO OUT

1

GND

2

GND

3

GND

4

-14.5V

5

GND

6

+16.5V

7

GND

8

GND

9

VDD1-3V

10

VDD1-3V

11

GND

12

GND

13

GND

14

GND

15

GND

16

BRIGHT-CO

17

TFT ON/OFF

18

TFT-HV

19

TFT-HV

20

TFT-HV

1

VCOMS

2

GND

3

GND

4

GND

5

G

6

B

7

R

8

GND

9

MODE2

10

MODE1

11

SPOI

12

SPIO

13

SPS

14

CLD

15

CTR

16

CLS

17

GND

18

GND

19

TF +5V

20

TF +5V

SWITCH PCB

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

1 2 3 4

JS106

JS102

XS302

XS303

IF PCB

GND

1

GND

2

RT1

3

B+1

4

BATTERY PCB

1

XS301

2 3 4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

XS304

30

HIGH VOLTAGE PCB

1

GND

2

GND

3

HV HV

COMS

-16V SPIO NC NC CLD MODE1 GND

3.3V GND SPOI GND R G B TF +5V TF +5V GND GND +13V I23 GND GND MODE2 CLS SPS

3.3V GND

3.3V

4

XS102

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

XS101

1

HV CRITICAL

2

NC

3

HV~

4

HV~

1 2 3 4

LCD

OVERALL BLOCK DIAGRAM

27MHz

DV23

PU mechanism

DRIVER (BA5954FP)

TC4W53

RF AMP D2891

+5V

8M FlashROM

MX29LV008TTC-70

SERVO & DVD PROCESSOR MPEG-2 DECODER & VIDEO ENCODER D2881

DRIVER +5V

64M SDRAM

NT56V6620C0T-75S

+3.3V

74HCU04

27MHz

L

R

AUDIO +5V

AUDIO +/-5V

UPD5100

AUDIO D/A (PCM1742)

TFT POWER

+5V -14.5V +16V

L

R

TFT MONITOR

AUDIO AMP (JRC4558)

PHONE AMP (JRC4580)

HIGH VOLTAGE ASS'Y

DC 12V

VIDEO OUT

S-VIDEO OUT

AUDIO OUT

PHONE OUT

110~240V 50/60Hz

DC IN +12V

AC Adapter

DC / DC (R1224) (TPS5100)

DC / DC (R1224)

(BQ2057C)

BATTERY

(TPC8207)

(VG202C)

DC 12V

L

R

SPEAKER AMP (D2822)

SPEAKER LOUT

SPEAKER ROUT

1. Troubleshooting

1. No power when turned on.

2. The initial screen is not displayed on the LCD.

3. The DVD drive does not work.

4. The operation of the DVD player stops at initializing display.

5. Image output stops during the operation.

6. No sound or abnormal sound comes out from the speakers in the DVD player.

7. No image or sound comes out from the external output.

8. No sound comes out from the headphones.

9. No image or sound is output by external input.

10. The DVD drive does not operate with the battery.

1.1 No power when turned on.

When the power is turned on, and if the LED on the front panel does not light green, check the following items and repair the defective parts.

(1) Check the power supply cable

If the cable is not the supplied one, replace it with the supplied cable and turn on the power again. If the power supply cable is good, the AC adapter may be defective. If the LED does not light after replacing, check the following items.

(2) Check the AC adapter

If the AC adapter is not the supplied one, replace it with the supplied AC adapter and turn on the power. If the AC adapter is good, the power supply boards may be defective. If the LED does not light after replacing, check the following items.

(3) Check the Power and Play buttons

Press the POWER button or the PLAY button on the DVD player. If the power does not turn on, check the following:

zCheck the connector of the switch unit in the DVD player.

(If the connection is loose, repair the connection.)

zReplace the switch unit and turn on the power again.

If the LED does not light after replacing, check the following items.

(4) Replace the main board