SANYO DVD-SL25 Service Manual 00-12

LASER BEAM SAFETY PRECAUTION

• Pick-up that emits a laser beam is used in this CD player section.

CAUTION :

USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE

LASER OUTPUT..........0.6 mW Max. (CW)

WAVELENGTH .............790 nm

DVD MECHANISM REPLACEMENT

1. Cautionary instructions in handling the assy (Safety instructions) Optical pickup The laser beam used in the pickup is classified as "class 2". Exposing your eyes or skin to the beam is harmful. Take care not to do so.

(Caution against static electricity and leakage voltage) Ground securely the work tables, tools, fixtures, soldering irons (including those made of ceramic) and measuring instruments used in the production lines and inspection departments that handle loaders. The workers shall also be grounded.

(Cautionary instructions in handling) Do not touch the object lens when handling a loader, or the lens will be stained, resulting in inadequate playability. There is no power supply protection circuit provided for this product or adjustment/inspection device. Short-circuiting may lead to fire or damage. Take care so as to protect from exposure to water, the entry of metallic pieces or dew condensation. In particular, a strong magnet adjacent to the pickup will not only get inoperative but can damage the pickup if a small metallic piece, such as a screw or swarm, enters. The loader edge can cause injury if inadvertently handled. Do not touch a rotating disk, or injury may result.

COMPONENT VIDEO OUT

Y

CB CR

VIDEO OUT  SELECT

S

S-VIDEO OUT

COMPONENT

RL

AUDIO OUT

VIDEO OUT

CAUTION – INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM. ADVARSEL – USYNLIG LASER STRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅ UDS ÆTTELSE FOR STRÅLING. VARNING – OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR FARLIG. VORSICHT – UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN. VARO – AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.

OPT.

DIGITAL OUT

(Connectors) Do not connect or disconnect while power is on. Connecting or disconnecting signal wires or the main power cord when the power is on may destruct the unit or fixture. When connecting, push all the way in securely. An insufficient insertion may cause a bad contact, leading to an erroneous operation. Do not connect or disconnect roughly by an excessively strong force, or a broken wire or bad contact may result. Semiconductors are connected. Do not touch connector terminals directly. If the worker is grounded, there is nothing to worry about static electricity, but the rust on the connector terminal surface caused by the touch may result in bad contact.

(Caution) Before disconnecting FFC cable, make it "SHORT" as shown left. After connecting FFC cable,make it "OPEN" as shownleft.

(OPEN)(SHORT)

This product is a precision device. Handle carefully. A shock or dropping will cause misalignment or destruction. If it should occur, refer to clause 2. This product is so designed as to endure an initial shock equivalent to a drop from a height of approx. 90 cm under the packed condition. After the initial shock, the resistivity will still remain at a level of 50 to 60 G, but the mechanical robustness will weaken. Do not place in a dusty location. The entry and deposition of dirt into or on the pickup lens or moving section will cause malfunction or degradation.

(Power source) The power source need be good in quality (free from instantaneous interruptions or noises). A low quality power source may well cause malfunction.

(Storage) Do not place or store in a dusty place or a place where dew condensation is possible. The entry and deposition of dirt or dust into or on the pickup lens or moving section will cause malfunction or degradation. Also, dew condensation causes rust; the rust penetrate into the precision part of a pickup, causing malfunction, or degrading the optical quality of the internal lens and reflector, which also leads to malfunction.

- 1 -

MECHANISM REPLACEMENT

1. How to Remove DVD Mechanism

First, it is necessary to remove Escutcheon.

Front

Side of DVD mechanism

Rear

1

2

Escutcheon

2. How to remove the tray.

1

2

3

Cylindrical thing

How to remove Escutcheon. An eject button is pushed and a tray is taken out.

1

Please remove Escutcheon, as shown in the left figure 2 . When an eject button 1 does not function. Above figure Please insert a cylindrical thing with a diameter of 3mm or less

1

in the hole 3 in the side of a DVD mechanism. A tray is pushed out.

1

2

1

Rotate the 1 gear. Move forward the 2 tray.

3. How to insert the tray.

1

Move the 1 slide to the left end. Insert the 2 tray.

Move both the right and left 1 tray pins to t Remove the 2 tray.

4. How to install the IF PWB.

1

2

BLACK

RED

SLED2

SLED1

WHITE

ORANGE

GND LMT SW

CN002

- 2 -

BLACK

RED

SP1SP1+

MECHANISM REPLACEMENT

4

3

5

1

2

ROUND

HOLE

MOTOR

PULLEY

SHASSIS

HOLE

TRIANGLE

MARK

SOLDERING

MECHA

P.W.B

5. How to install the motor.

1 Adjust the motor terminal to boss in the chassis. 2 Adjust the round hole of the motor to the triangle mark of P.W.B,and solder it.

6. Base mechanism mounting parts.

GREASE

SY-31S or

MEN-223R

GREASE

SY-31S or

A

MEN-223R

GREASE

SY-31S or

MEN-223R

A

: Clean the groove by alcohol well.

Apply screw lock

7. Base mechanism parts. 8. Tray parts.

GREASE

SY-31S or

MEN-223R

GREASE

CDF-409Z or SF-106B

GREASE

SY-31S or

MEN-223R

Do not remove the pick-up from base mechanism because of adjustment difficulty.

GREASE

SY-31S or

MEN-223R

- 3 -

GREASE

CDF-409Z or

SF-106B

GREASE

CDF-409Z or

SF-106B

TROUBLE SHOOTING

POW ER DO ES NO

XE, UK only

T

TU

Is thevOltageat

pin3and 5 of CN

about5.6V

?

Y

ag

the volt

Is

of IC852

e

about

at pin

5.0V

Y

ag

Is the volt

of IC851

at pin

e

ab

out 3.3V?

Y

Is the voltageat pin

of IC850 about 1.8V?

Y

RN

ON

N

81

1

Check IC483 and peri

pheralcircui

t.

DOESNOT LI

the volt

Is

pi n 1 and 2 of FL831

about-28V

GHT

DI

SPLA

Y

ag

e

at

?

N

eck FL2 lineof

Ch

PO

RBLOC

WE

K.

Y

N

3

?

Ch

eck

IC852 and peri

ph

eralcirc

uit.

pi n31and 32 of FL

Is the volt

about-25V

ag

e

?

N

at

831

Check FL1 line of

BLOC

POWE

K.

R

Y

831

N

831

Check IC and

peripheral circuit.

N

3

CheckIC851 and peri

circuit.

ph

eral

Is the voltage at

pin 6 and 24 of IC

about 5V

?

Y

N

4

Check IC850 and peri

eral ci rcui

ph

t.

Is thevoltag

at pi

n

15

about-30V

of IC

?

N

e

831

Check -30V line of

POWER BLOCK.

ex. POWER open ?

Y

Check IC800, IC818, IC822 and peripheral circuite.e

LOADER DOES

Is an

Isthe

LOAD

NOT ACCEPT OPEN/C

the voltage at pi

of IC160about

d14

Y

lose connection

andCN

16

CN160

to

LOADER.

2

N

en

Wh

ACIN,

ERMOTOR turn

Replace FL or IC

NO

LOR

LOSE

N

n

3

?

9V

Check 9V line of

POWERBLOC

K.

CO

COM

831 831

PLAYBACK PI

POSITEVI

PICTURE mode BLACKand

DEOOU

WH

IT

CTUR

is

E?

OF

E

T

Y

Change PICTUR

STANDA

E

RD .

mo

de to

N

at

Y

Check each other connection to

LOADER

.

X8230 osc is

27

.000

MH

N

z?

CheckX8

and peripher

230

circui

al

t.

Y

?

Check OPENorSHORTat pin 29, 26,27

and 24, 32 of IC80

0.

Check IC800 or

change IC80

0.

eck IC800 and

Ch

circ

uit.

N

pheral

pe

ri

- 4 -

TROUBLE SHOOTING

NO PLAYBACKPICTURE OFCOMPOSITEVIDEOOU

Y

e

Is ther

DEO signal

VI

at pin 170 of IC800.

Check composite signal line (DAC_D line) and S8400 around.

N

A

ere

Is

th

wa

ve

from pin

rm

to pi

fo

n

23 ofIC800?

9

Y

Check IC800 or

change IC800.

DIGITALAUDIO OUT ON PLAYBACK

NO

N

CheckIC130 and peripheralcircuit.

T

NO PLAYBACKPICTUREOFS-VIDEOOUT

N

SelectS-VIDEOside.S8400 is S-VIDEOside?

Y

ere

Is

VIDEOsignal at

th

pin169 and 170 of IC80

Y

0?

Check DAC_A, DAC_D signal line and S8400 around.

N

A

AYBACKPICURE OF COMPONENT

NOPL

VIDEO(UK,XE:RGB)

S8400 is

VIDEOside

(UK,XE:RGB)

there

Is

VIDE

pin 170,169 and173 of

CO

MPONEN

Osignal at

IC80

0?

OUT

N

T

?

ct

Sele

COMPONENT

(UK,XE:RGB)

si

de

.

Y

Check DAC_A, DAC_B, DAC_C signal line and S8400 around.

When CD

Is there wa

pi

n

of IC859?

4

veform

N

the volt

Is

of IC859 about 3. 3V?

age

at pi n

Y

When DVD

there waveform at

Is

pi

n

3and16of IC 80

N

D

e

veform at

ther

wa

Is

n

pi

and16 of

1

N

eck SPDIF CD signal line of

Ch

IC130 and peripheral

t.

circui

B

IC80

DI

A

OOUT

N

ON PLAY

at

BACK

Y

eck IC872,Q8720, Q8820and

Ch

peripheral ci

rcui

t.

Y

at

5

9?

CheckCN871(Optical modul)

and peripher

N

Check IC851 and peripheral ci

Y

al

circuit.

Pin 6 of IC859

is LO

W?

t.

rcui

AL

AN

NO

OG AU

Y

C

there AUDIO signal

Is

pin8and11of IC871?

N

B

Y

9?

Pin 6 of IC859

is HIGH

?

Y

C

Is there waveform at pi

1,2 and3of IC871?

N

n

CheckIC800 and peripheral circuit.

Y

N

Is there wavefo rm at pi n

B

20,19,18 and 4 of IC87

N

1?

Check IC800,IC820 and periph

ci

t.

rcui

eral

Y

Check IC871 or

change IC871.

C

D

Check SPDIF SEL (IC800 pin177 ) signal line

ange IC859.

Ch

Check IC800 pin181 and peripheral circuit.

- 5 -

POWER

OPEN/CLOSE

STOP

PLAY

SERVICE MODE

A. Market / Region SETUP

In the initial condition for this model, Market and Region information are undefined. In the following cases, be sure to set up Market/Region.

1. When updating the system using CD-R (Part code : 0PRADC7118--A).

2. When replacing a DVD substrate. While Market/Region information are undefined, the message "Region Undefined" is displayed on the screen.

NOTE: Even if the condition is not under 1 or 2 above, if the message "Region Undefined" is displayed, be sure to set up Market/Region.

B. How to enter Service Mode.

You can enter Service Mode in any one of the following ways (1 to 3).

1. Using the buttons on the main unit Immediately (within one second) after pushing both STOP and POWER buttons simultaneously, push PREV button.

OPEN/CLOSE

2. Pushing the covered key located beneath Book Mark key on RB 1500 or REM-S1500.

3. Simultaneously pushing both Shift key and ON SCREEN key on RB-SL25.

PLAY

STOP

POWER

- 6 -

SERVICE MODE

C. Setup Procedures

1. Displaying SERVICE MODE screen

Display Service Mode screen following the instructions "How to enter Service Mode" above.

2. Displaying Internal Setup screen

Push NEXT button within three seconds after operating the Service Mode display. On the Internal Setup screen shown on the right, set up Market and Region.

Model Market Region

DVD-SL25V/SS 05 3

Market/Region setup table.

Region BackendVersion

LoaderVersion

0

Market

S21225A0

55 50 05

Internal Setup

Markett W M

00

Region 1

00-WM

01-SFC

S18

05-SS 06-PA

02-UK

07-AU 08-CN

WM

03-XE

Value

Exit

09-JP

04-

3. Setting Market code

3.1. While a highlighted indicator is displayed on the right side of the Market denotation, push numeric buttons on the remote controller. When you push wrong number , push CLEAR button. (The indicator reset to "00") Be sure to input by double figures. For example , in SS input 0 and 5.

3.2. Specify the code of the model in accordance with the Market/Region Setup Table above.

3.3 Once the desired code is displayed, push p button to move the highlighted indicator to the Region input area.

- 7 -

by pushing number keys.

Internal Setup

Markett W M

00

Region 1

00-WM

01-SFC

S18

05-SS 06-PA

02-UK

07-AU 08-CN

Input number

Exit

03-XE

09-JP

04-

SERVICE MODE

4. Setting REGION code

4.1 While a highlighted indicator is displayed on the right side of the Region denotation, push ENT, -> and <- each button on the remote controller. With each push the indicator will advance as shown below.

1 <-> 2 <-> 3 <-> 4 <-> 5 <-> 6

4.2 Specify the number of the model in accordance with the Market/Region Setup Table above.

4.3 Once the desired number is displayed, push p button to move the highlighted indicator to Exit area.

5. Saving settings

5.1 Make sure that the Market and Region settings are properly set. (If any of the settings are incorrect, you can make a change by moving the indicator using o button, and following procedures 3 and 4 above. )

5.2 After ensuring that the settings are all correct, push ENT button while the indicator is on Exit area. The settings are now saved.

Internal Setup

Market

Region

00 1

00-WM

01-SFC

S18

05-SS 06-PA

02-UK

07-AU 08-CN

Internal Setup

Market

Region

00-WM

01-SFC

S18

05-SS 06-PA

02-UK

07-AU 08-CN

1

00

1

Exit

03-XE

09-JP

Exit

03-XE

09-JP

04-

6. Finishing settings

6.1 After a few seconds, the Internal Setup screen disappears, and then the Service Mode screen is displayed again for three seconds as shown on the right.

You should check the settings.

Backend version

Brand (S : SANYO , F : FISHER) Version ( 2 0 0 2 . 12 . 25)

Sub Version (A,B,......Z)

Region ( 0 : Region undefined 1 ~ 6 : Region defined ) Loader Version ( 55 50 05)

6.2 Power OFF.

S 21225 A 0

- 8 -

Region BackendVersion

LoaderVersion

1

Market

S21225A1

55 50 05

WM

Value

SERVICE MODE

D. IMPORTANT NOTE

1. Once the "Market/Region" settings are written into EEPROM (IC801) on the DVD substrate, they cannot be reset. (However, updating the system using CD-R enables you to make new settings.)

2. While the Internal Setup screen is displayed, pushing the Power button enables you to terminate the operations without making any settings.

HOW TO LOAD SOFTWARE FOR MPEG P.W.BOARD

1. Power on, then open tray.

2. It take on CD-ROM for UPDATE software to the tray, and tray close.

3. Display " UP DATE" in the FL display.

4. For the time being, tray open and FL display remain "UP DATE".

5. When software loading finished, "UP DATE" on a FL display disappears.

6. Next, set up market code and region code by "SERVICE MODE" CD-ROM part code is "0PRADC7118--A".

CAUTION

After an MAIN board(614 326 4279) or IC ASSY(410 464 8601) exchange should carry out loading of the software by the newest CD-R, and should check operation.

- 9 -