Philips MCD710 Manual de usuario

Version 1.4

MCD710

3141 785 32074

DVD Micro theatre

all versions

Published by LX 0835 Service Audio Subject to modification

system or transmitted, in any form or by any means, electronic, mechanical, photocopying,

or otherwise without the prior permission of Philips.

Service Aids ..................................................................................1-1

Info. about lead-free soldering.......................................................1-1

Service Instruction ........................................................................1-1

CD Playability Check .............................................................2-1..2-3

Disassembly digram ...............................................................3-1..3-3

Software version check and upgrading .........................................4-1

Block diagram................................................................................5-1

Wiring diagram .............................................................................6-1

Tuner Board

circuit diagram ..........................................................................7-1

layout diagram ..........................................................................7-2

VFD Board

circuit diagram ..........................................................................8-1

layout diagram ..........................................................................8-2

circuit diagram................................................................... 9-1...9-3

layout diagram ...........................................................................9-4

MPEG Board

circuit diagram. .............................................................. 11-1..11-6

layout diagram ........................................................................ 11-7

Exploded view diagram ..................................................................12-1

Service parts list ....................................................................13-1..13-5

TABLE OF CONTENTS

AMP/POWER Board

...

1-1

Service Tools:

Universal Torx driver holder .................................4822 395 91019

Torx bit T10 150mm ...........................................4822 395 50456

Torx driver set T6-T20 .........................................4822 395 50145

Torx driver T10 extended .....................................4822 395 50423

Compact Disc:

SBC426/426A Test disc 5 + 5A ...........................4822 397 30096

SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155

SBC429 Audio Signals disc .................................4822 397 30184

Dolby Pro-logic Test Disc ....................................4822 395 10216

SERVICE AIDS

GB WARNING

All ICs and many other semi-conductors are

susceptible to electrostatic discharges (ESD).

Careless handling during repair can reduce life

drastically.

When repairing, make sure that you are

connected with the same potential as the mass

of the set via a wrist wrap with resistance.

Keep components and tools also at this

potential.

ESD

CLASS 1

LASER PRODUCT

Safety regulations require that the set be restored to its original

condition and that parts which are identical with those specified,

be used

Safety components are marked by the symbol !.

Lead free

Set remains closed!

Standard repair procedure

Play a CD

for at least 10 minutes

playability

ok ?

playability

ok ?

add Info for customer

"SET OK"

playability

ok ?

check playability

playability

ok ?

check playability

EYE-Pattern

ok ?

check "EYE-Pattern"

replace CD Drive

Laser current

ok ?

check Laser current

CD Drive offsets

ok ?

check CD Drive offsets

clean the lens

check playability

return set

Customer complaint

"CD related problem"

return set

replace CD Drive

return set

replace CD Drive

return set

replace Signal Processor

return set

"fast" lens cleaning

For flap loaders (= access to CD drive possible)

cleaning method 4is recommended

1- 7For description - see following pages

CD PLAYABILITY CHECK

2 -1

PLAYABILITY CHECK

For sets which are compatible with CD-RW discs

use CD-RW Printed Audio Disc....................7104 099 96611

TR 3 (Fingerprint)

TR 8 (600µ Black dot) maximum at 01:00

• playback of these two tracks without audible disturbance

playing time for: Fingerprint ≥10seconds

Black dot from 00:50 to 01:10

• jump forward/backward (search) within a reasonable time

For all other sets

use CD-DA SBC 444A..................................4822 397 30245

TR 14 (600µ Black dot) maximum at 01:15

TR 19 (Fingerprint)

TR 10 (1000µ wedge)

• playback of all these tracks without audible disturbance

playing time for: 1000µ wedge ≥10seconds

Fingerprint ≥10seconds

Black dot from 01:05 to 01:25

• jump forward/backward (search) within a reasonable time

CUSTOMER INFORMATION

It is proposed to add an addendum sheet to the set which

informs the customer that the set has been checked

carefully - but no fault was found.

The problem was obviously caused by a scratched, dirty or

copy-protected CD. In case problems remain, the customer

is requested to contact the workshop directly.

The lens cleaning (method 3) should be mentioned in the

addendum sheet.

The final wording in national language as well as the printing

is under responsibility of the Regional Service Organizations.

FAST LENS CLEANING (dry brush)

Use lens cleaning CD

SBC AC300...........................................9082 100 00043

Insert the lens cleaning CD, press PLAY and follow the

voice guide´s instructions on the CD.

LIQUID LENS CLEANING

Because the material of the lens is synthetic and coated

with a special anti-reflectivity layer, cleaning must be done

with a non-aggressive cleaning fluid. It is advised to use

“Cleaning Solvent B4-No2”, available with codenumber

4822 389 10026.

The actuator is a very precise mechanical component and

may not be damaged in order to guarantee its full function.

Clean the lens gently (don’t press too hard) with a soft and

clean cotton bud moistened with the special lens cleaner.

The direction of cleaning must be in the way as indicated in

the picture below.

Before touching the lens it is advised to clean the

surface of the lens by blowing clean air over it.

This to avoid that little particles make scratches on

the lens.

CD PLAYABILITY CHECK

2-2

EYE-PATTERN SIGNAL – JITTER MEASUREMENT

Measure the signal on the input of the Signal processor

using an analog oscilloscope. Please find the exact

measuring point in your Service Manual.

See below examples of the signal. Amplitude should read at

least 700mVpp using SBC444A.

good

bad

If the oscilloscope shows a signal like the ‘bad’ one, and/or

the amplitude decreases within 1 minute - the CD drive has

to be replaced.

CD DRIVE – LASER CURRENT MEASUREMENT

The laser current can be measured as a voltage drop on a

resistor. The resistor is marked in every Service Manual.

The value depends on the type of CD drive.

typical value most probably defect

VAMxxxx : 150-230mV ≥350mV

MCDxx : 170-230mV ≥300mV

DA1x : 210-250mV ≥350mV

DA2x : 175-200mV ≥250mV

Use SBC444A (CD-DA) for measurement.

CD DRIVE – OFFSET MEASUREMENT

The photodiodes of the CD-drive may have an offset. These

offsets have to be compensated by the signal processor.

High offsets can lead to poor playability of some CDs

(skipping tracks).

To measure the offset values, start the Service Test

Program - section “Focus Test” without a CD.

The offsets can be measured with a DC Millivoltmeter

directly on the connector (see drawing below). Pin

numbering varies from drive to drive.

The values from diode A-D should read 0±10mV.

Diodes E and F are less critical.

If one of the offsets is higher than ±10mV the CD drive has

to be replaced. Otherwise replace the Signal Processor.

Sanyo DA12T3

CD Drive

VCC

VREF

1800

+5V_HF

VrefCD10

GND 8

Laser power control

100n

2878

470n

2876

3821

3823

2880

33p

+5V

BC807-40

7879

3817

47R

3820

4R7

47R

3819

2879

2877

47u

7811-A

LM358D 3

10K

3822

47R

3818

2841

100n

47n

2869

+5V_HF

LASER DIODE

U >250mV

->Laser damaged !

4,6V

3,3V

3,9V

0,17V

Sanyo

DA12T3

HF-Amplifier

Drive detection

680R

3905

3903

3K3

BC847B

7877

47n

2818

1K5

3902

470R

3893

+3.3V

2K2

3908

10K

3923

BC847B

7878

BC847B

7876

4n7

2813

3896

100R

220u

2885

2881

560p

47n

2887

560R

3901

2883

470n

2817

4u7

3n3

2814

3898

220R

3895

27K

470n

2884

+3.3V

3909

820R

3907

100R

3920

33K

3897

2882

82p

3K3

3904

2K7

3899

3906

470R

+5V_HF

HFIN

VrefCD10

100p

28152816

22n

LDON

to 3826,3827

VREF GE

VDDA1

VRIN

VSSA1

ISLICE

LDON

HFIN

HFREF

IREF

CD_DA: 0V / CD_RW: 3V

Σ(A-D)

800mVpp

TB = 0.5µs/div

EYE-PATTERN

1,8V

1,2V

2,4V

2,6V

0,65V

CD PLAYABILITY CHECK

2-3

A. Remove TOP cover

A1. Loosen screws

3×15PA (4PCS)

D.Cut off 2 PCS wire tie

Disassembly Diagram

3-1 3-1

C. Loosen screw 3×6FMTT(1PCS),remove turner board

B. Loosen screws 3×10FA(7PCS),then remove back cover of output jack

A.Open the top cover

E.Loosen screws 3×10PA(1PCS),then remove AMP board

F.Loosen screws 3×15BA(4PCS), then remove mechanism core

I.Loosen screws 3×10BA(2PCS),and remove top cover

3 - 2 3 - 2

G.Loosen screws3×6PT(2PCS),then remove decoder board

I. Loosen screws 2.6×8BA(8PCS),and remove display board

J. Loosen screws 2.6×8BA(3PCS) and remove volume board K.Loosen screws 2.6×8BA(4PCS), remove USB and earing socket

3 - 3 3 - 3

Software Version Check & Upgrade

MCD710 Vxx

Upgrade software

Software check

3.Press SYSTEM on the remote open menu, press Left or Right to select “Preference

Page”, now TV screen shows as below:

Press Up or Down to select “Default” on remote, Press OK to exit reset.

Software upgrade finish.

Input password “811502” on remote, TV screen showing as below:

Upgrade File detected

--Preference Page--

TV type PAL

Audio CHI English

Subtitle CHI French

Disc menu CHI Spanish

Parental Chinese

Japanese

Default Korean

Russian

Tjai

Upgrade?

Press PLAY to start

Upgrading

CPU version check

1.Downloading the software form the website that Philips supports

1.Keep press PLAY/PAUSE and STOP buttons,plug into the power cord at one time,

TV showing as below:

2.Put in the Software CD Disc or USB,when it is loading,

the TV screen shows as below:

Waiting half to one minute,till the TV screen showing disappear.

Turn off electrical source and reopen.

http://www.philips.com/support

Ver :

Date

Time

Region code

MCD710 / xxxx

mm dd yyyy

hh : mm : ss

4-1

SET BLOCK DIAGRAM

5 - 1 5 - 1

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