Toshiba SD-KP19SN Service Manual

SERVICE MANUAL

DOCUMENT CREATED IN JAPAN, DECEMBER, 2005

PORTABLE DVD PLAYER

FILE No. 810-200597GR

SD-KP19SN

The above model is classified as a green products (*1), as indicated by the underlined serial numbers.
This Service Manual describes replacement parts for green products . When repairing any green
products, use the part
For (*1) and (*2), see the next page.

(s) described in this manual and lead-free solder (*2).

Dec.,2005 GREEN

(*1) GREEN PRODUCT PROCUREMENT

The EC is actively promoting the WEEE & RoHS Directives that define standards for recycling
and reuse of Waste Electrical and Electronic Equipment and for the Restriction of the use of
certain Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any
marketing of new products containing the restricted substances.

Increasing attention is given to issues related to the global environmental. Toshiba Corporation
recognizes environmental protection as a key management tasks, and is doing its utmost to
enhance and improve the quality and scope of its environmental activities. In line with this,
Toshiba proactively promotes Green Procurement, and seeks to purchase and use products,
parts and materials that have low environmental impacts.

Green procurement of parts is not only confined to manufacture. The same green parts used in
manufacture must also be used as replacement parts.

(*2) LEAD-FREE SOLDER

This product is manufactured using lead-free solder as a part of a movement within the consumer
products industry at large to be environmentally responsible. Lead-free solder must be used in
the servicing and repair of this product.

WARNING

This product is manufactured using lead free solder .

DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT !

The melting temperature of lead-free solder is higher than that of leaded solder by 86°F to 104°F
(30°C to 40°C). Use of a soldering iron designed for lead-based solders to repair product made
with lead-free solder may result in damage to the component and or PCB being soldered. Great
care should be made to ensure high-quality soldering when servicing this product  especially
when soldering large components, through-hole pins, and on PCBs  as the level of heat
required to melt lead-free solder is high.

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electricity.

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 keepthelaserdiodeaway fromdamagebystaticelectricity.
The above caution is also applied to LSI and IC .

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

Conductivemat

Groundconductive
wriststrapforbody.

1M

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

CDMD

13

DVDMD

14

MD

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

1
2
3
4
5
6
7

FUNCTION
BUTTON PCB

SP­SP+
SL+
SL­GND
LIMIT

KEY1
KEY2
KEY3
KEY4
KEY5
KEY6
GND

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

1
2
3
4
5
6

1

BATT+

2

TS

3

XS102

XS2

JS3

XS3

1
2
3
4
5

XS5

6
7

JS5

MAIN PCB

4

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15

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

GND
GND

HV
HV
BRIGHT
TFT on/off
GND
GND
SPR+
SPR­SPL+
SPL­GND
TFT+17V
GND
TFT-13V
GND

VCOMS
GND
TFT5V
TFT3.3V
GND
LCD G
LCD B
LCD R
GND
L/R
V/D
STV1
STV2
OEV
CKV
OEH
STH1
STH2
GND
CPH1

1
2

BATTERY

3
4

1
2
3
4
5
6
7
8
9

XS6

10
11
12
13
14
15

1
2
3
4
5
6
7
8
9
10
11

XS1

12
13
14
15
16
17
18
19

INVERTER PCB

20

XS5

XS2

1
2

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

TFT+17V
NC

3.3V
TFT GND
TFT-13V
NC
STV1
V/D
CKV
OEV
OEV
OEV
STV2
VCOMS
TFT GND
VEE
STH2
L/R
CPH1
CPH1
CPH1
MODE

3.3V
OEH
LCD B
LCD G
LCD R
VBS
STH1
VCOMS

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

1
2

LCD

OVERALL BLOCK DIAGRAM

74HC4053

16M FlashROM

MX29LV160ABTC-70

64M SDRAM

HY57V641620ETP-H

74HCU04

27MHz

27MHz

27MHz

DC 9V

OSCILLATOR
OZ9930

CARD

DV23
PU mechanism

DRIVER
(BA5888)

110~240V
50/60Hz

74HC4053

DC IN +12V

AC
Adapter

RF AMP & SERVO & DVD PROCESSOR
MPEG-2 DECODER & VIDEO ENCODER

ZR36882

+5V

+5V

DRIVER +5V

+3.3V
+1.8V

L

R

DC / DC

UPD5500A

TFT POWER

+3.3V +5V +2.5V +16V -13V

AUDIO +5V

AUDIO D/A

(WM8728)

AUDIO +/-5V

BATTERY

TFT MONITOR

L

R

OTHER 5V

AUDIO 5V

HIGH VOLTAGE ASS'Y

VIDEO IN

VIDEO OUT

Y/C OUT

AUDIO AMP
(AZ4558)

AUDIO OUT

RL

AUDIO IN

TC74HC4052

(BQ2057C)

(TPC8207)

(VG202C)

+5V

RL

SPEAKER AMP
TPA6011

SPEAKER LOUT

SPEAKER ROUT

PHONE OUT

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 main board may be defective.
If the LED does not light after replacing, check the following items.

(3) Replace the main board

1.2 The initial screen is not displayed on the LCD.

If the initial screen is not displayed on the LCD, check the following items.

(1) Check the LED on the front

If the LED does not light, proceed to 1.1.

(2) Check the backlight

If the backlight does not light up, separate the DVD player into top assembly and
bottom assembly, and check the Harness, and check the connectors for
defects.

If the Harness is broken:

Replace the broken Harness.

If th

e Harness is not broken:

Rem

ove the LCD Mask and the LCD Unit and check the following:

zCheck the connector
zIf the connectors are good, replac

(3) Check the lighting of LCD

If the LCD does not light, separate the DVD player into the top assembly and bottom
assembly, and check

If the connector is broken:

Replac

If the connector is not broken:

harness of the LCD unit.

zIf a bad connection is found.

zOther than the above

e the Harness or the main board.

Remove the LCD

Connec

Replace the LCD unit or the main board.

t the Harness to the LCD unit.

s of the Harness, replace the Inverter Unit or the LCD Unit.

e the Inverter Unit or the LCD Unit.

the Harness, and check the connectors on the main board.

Mask and the LCD Unit, and check the connection to the