Toshiba SD-270EKB2 Bedienungsanleitung

DVD VIDEO PLAYER

The above models are classified as green products (*1), as indicated by the underlined serial numbers.

This Service Manual describes replacement parts for the green products. When repairing these green

product(s), use the part(s) described in this manual and lead-free solder (*2).

For (*1) and (*2), see the next page.

Oct., 2007 GREEN

TOSHIBA CORPORATION 2007

File No. 810-200796GR

SERVICE MANUAL

INTERNAL PUBLICATION

SD-270EKB2

SD-270EKE3

(*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to

104(30ćto 40ć). 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.

. Trouble Shooting Chart……………………………….……….……..….….….....1-1

. Block Diagram………………………………………………………….…..…..….2-1

. Wiring Diagram……………………………………...…………….............…..….3-1

. Electrical Circuit Diagrams

Front Board………………………………………...…………...………....…….4-1

Power Board………………………………………………..…………..….........4-2

Main Board………………..………………………………...…….…..……...….4-3

. PCB Print-layouts

Front Board…………………………………….………………………....…......5-1

Power Board………………………………………………………….…...….....5-2

Main Board………………..…………………...………….……..….……......…5-3

. Set Mechanical Exploded view& Parts List……………………………..……....6-1

. Part List

Part list for Front Board……………………………………………………....…7-1

Part list for Power Board………………………………………….….….....…...7-2

Part list for Main Board………………..……………………….…..…..…….…7-3

. Technical Specifications…………………………………….….…….….….….....8-1

. Revision List……………………………………………………….………....….....9-1

TABLE OF CONTENTS

Page

1-1

Spindle motor does not move

Yes

Check whether “RFA5V”

(+5V) voltage is normal.

Correct connection

Check the RFA5V power

supply

Check/Replace Q2ǃQ3.

Check/ Replace U1.

Have no focus

1. Check U1 182pin

FOCUS_PWM signals

2.If there are F+, F-, T+ and T-

signals output from U7.

Check/Replace the loader

Yes

Check whether laser voltage

(2.3V for DVD & 1.9V for CD)

on Collector of Q2 and Q3

Check the FFC connection

between 24P and the loader.

1.Whether voltage on pin 129 of

U1 varies between 0 and 3.3V

(3.3V for CD and 0V for DVD),

2.Whether peripheral components

are eroded or badly soldered.

Trouble shooting chart

Motor no move

FOCUS_PWN waveform

1-2

The power can not be on or off

Ye s

Yes

The power can’t be

on or off

Yes

Repair the power board

Check the power supply

on the power board is

normal.

Check/Correct connection

Whether the connection

to K301 is broken. Correct the connection

Replace U1.

Yes

Check if the CON3 on the

front board to CN5 on the

decoder board is in good

contact.

Whether there is 0V and

3.3V voltage difference on

Pin 94 PCON of U1.

Trouble shooting chart

1-3

All output voltages on the power board is 0V or deviated.

Yes

U1(PIN 8 - Drain waveform)

Replace F1

Replace C1&C2 if D1, D2, D3, D4

are normal.

Check/ replace U1.

Check whether U1 are eroded.

All output voltages on

the power board is 0V or

deviated

Check whether

there is 300V on C1

Check whether 100KHz

oscillating signal on

Pin6 of U1

Check if +5V, , +12V and

-12V are short.

Check whether the components in the

short-circuit voltage are defected or eroded.

Yes

U1(PIN 3 - RC waveform)

Check whether F1 is

blown

Trouble shooting chart

1-4

Disc cannot be read.

Yes

Disc cannot be read.

Check the loaded circuit

1.Check voltage on pin 100 of U1

varies between 0 and 3.3V:

Æ3.3V for CD

Æ0V for DVD

2.Check whether peripheral

components are eroded or defect

Check the FFC connection

between 24P and the loader.

Check U1 and peripheral components

Re-solder or replace the defective parts

Correct connection

Replace U1 or loader.

Yes

Check whether there is

laser voltage (2.3V for DVD

and 1.9V for CD) on

Collector of Q2 &Q3

Check if there is RFO signal

on pin10 of CN2. (The

normal RFO signal is a clear

reticulated wave)

Check U1, U7, and

peripheral components are

eroded or badly soldered.

Trouble shooting chart

Check the connection

between U1 and loader

1-5

Only DVD disc or only disc except DVD can be played

Yes

Only DVD disc, or only disc

except DVD can be Played.

Check the FFC

connection between

24pin and the loader.

Check the loaded circuit

Check the solder status on U1 and

peripheral components

Check whether there

is voltage variance on

in 182 of U1.

check if bad solder exist on U1 and

peripheral components

Replace the bad spare parts

Yes

Correct connection

Change U1 or the loader.

Yes

Check laser voltage (2.3V)

output on Collector of Q2, if

pin181 of U1is at low level.

Trouble shooting chart

Check whether pins of U1

and peripheral

components are badly

soldered, defected

Check Q2 whether

in good condition

1-6

No display on LED, and buttons do not work

Yes

No display on LED, and

buttons do not work

Check whether there is

correct contact

between CON3 and

CN5

Correct connection

Fix power supply board top

a power supply for should

electric circuit

Check the U1’s pin 131,132,133

arrive the CN5 connect condition

Correct connection

Replace U1 or LED

Yes

Check VCC(+5v) voltage

on the power and front

board

Check there are CS,

DATA and CLK signals on

CON3 on the front board.

1.Check whether bad solder exists on

U1 and pins of LED,

2.Check whether the circuit connected

to S1, S2,S3 and S4 is broken,

3.Check whether R6, R7 and R8 are

en-circuit.

CN5 (PIN 2 CLK) CN5 (PIN4 DOUT)

Trouble shooting chart

1-7

Distorted audio and loud noise

Yes

Distorted audio and

loud noise

Replace R176 and R175

Check Q27

Replace Q17~Q18

Check whether the

muting transistor R176

andR175 are normal

Yes

Check whether the

muting transistor

Q17,Q18, are normal

Checking the U15 leads

the feet has no to break

to o

Correct connection

Replace U1

if the clock signal AOUT0,

ABCK and ALRCK output

U1 are normal

Check whether the U1

or U15 powersupply

normal

Yes

Check the power supply

voltages +12V to the

operation amplifying Q27

and -12V are normal.

Yes

Check U15

Replace U1 or U15

Yes

SACLK waveform SBCLK waveform SSLRCK waveform

Trouble shooting chart

Dieses Handbuch passt für folgende Modelle

Inhaltsverzeichnis

Andere Toshiba DVD-Player Handbücher

Toshiba

Toshiba SD-590E Bedienungsanleitung

Toshiba

Toshiba SD-5000KU Bedienungsanleitung

Toshiba

Toshiba SD-K615 Bedienungsanleitung

Toshiba

Toshiba SD190 Bedienungsanleitung

Toshiba

Toshiba SD7300 Bedienungsanleitung

Toshiba

Toshiba SD-5109 Bedienungsanleitung

Toshiba

Toshiba SD7300KU Bedienungsanleitung

Toshiba

Toshiba SD-3109 Bedienungsanleitung

Toshiba

Toshiba SD-K350Y Bedienungsanleitung

Toshiba

Toshiba SD-530ESE Bedienungsanleitung

Toshiba

Toshiba SD-3860SC Bedienungsanleitung

Toshiba

Toshiba SD-240ESB Bedienungsanleitung

Toshiba

Toshiba HDA20 - HD DVD Player Bedienungsanleitung

Toshiba

Toshiba HD-A2KU Bedienungsanleitung

Toshiba

Toshiba SD-770SR Bedienungsanleitung

Toshiba

Toshiba SD-2150 Bedienungsanleitung

Toshiba

Toshiba HDA1 - HD DVD Player Bedienungsanleitung

Toshiba

Toshiba HD-A35 Bedienungsanleitung

Toshiba

Toshiba SD-190ESE Bedienungsanleitung

Toshiba

Toshiba SD-34VLSL Bedienungsanleitung

Toshiba

Toshiba SD-6980 Bedienungsanleitung

Toshiba

Toshiba SD-9500E Bedienungsanleitung

Toshiba

Toshiba E-2-15 ESE-R Bedienungsanleitung

Toshiba

Toshiba SD-2050 Bedienungsanleitung

Beliebte DVD-Player Handbücher anderer Marken

Sony

Sony DVP-F11 Bedienungsanleitung

LENCO

LENCO DVP-740 X2 Bedienungsanleitung

JVC

JVC XV-N650BEU Bedienungsanleitung

Aiwa

Aiwa XD-DV370 Bedienungsanleitung

MedeaWiz

MedeaWiz Sprite 4K DV-S4 Bedienungsanleitung

Denon

Denon DVM-1805 - DVD Changer Bedienungsanleitung

Tevion

Tevion 44330 Bedienungsanleitung

Samsung

Samsung DVD-HD860 Bedienungsanleitung

Sylvania

Sylvania DP170SL8 Bedienungsanleitung

Dolby Laboratories

Dolby Laboratories CP650 Bedienungsanleitung

Philips

Philips DVD737K/931 Bedienungsanleitung

Denon

Denon DVD-5900 Bedienungsanleitung

Philips

Philips DVD 951 Bedienungsanleitung

Philips

Philips DVDR3460 Bedienungsanleitung

Sony

Sony DVP-SR201P Bedienungsanleitung

Impecca

Impecca DVHP-9109 Bedienungsanleitung

Grundig

Grundig GDP 3760 Bedienungsanleitung

Grundig

Grundig CINIO GDP 5240 Bedienungsanleitung