Philips MCD-106 Service Manual

DVD Micro Theatre

MCD106/94

TABLE OF CONTENTS

Page

Location of PC Boards & Versions Variation ........................1-2

Speci cations .......................................................................1-3

Measurement Setup .............................................................1-4

Service Aids, Safety Instruction, etc .....................................1-5

CD Playability Check ..................................................1-6 to 1-8

Set Procedure & Repair Instructions ....................................... 2

Disassembly Instructions & Service positions ......................... 3

Set Block Diagram ................................................................4-1

Set Wiring Diagram ..............................................................4-2

Control Board ..........................................................................5

Main Board .............................................................................. 6

Power Board ............................................................................7

Mechanical Exploded View & Parts List .................................. 8

Revision List .................................................................................................. 9

VIDEO CD

©

Copyright 2008 Philips Consumer Electronics B.V. Eindhoven, The Netherlands

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without
the prior permission of Philips.

Published by SL 1015 Service Audio Printed in The Netherlands Subject to modification

Version 1.2

CLASS 1

LASER PRODUCT

© 3141 785 31952

LOCATION OF PCB BOARDS

VFD PCB

1-2

MAIN PCB

POWER PCB

VERSION VARIATION:

Features & Board in used

Type / Versions:

KEY PCB

MCD106

/94

Composite video out

Voltage (Dual)

AC line cord ( xed)

X

X

X

SPECIFICATIONS

Picture

Aspect ratio .................................................................................................................. 4:3, 16:9

D/A Converter ....................................................................................................10 bit, 108 MHz]

Sound

Signal to noise ratio .......................................................................................... 90 dB, A-weight

Distortion and Noise ................................................................................................ 1 kHz 0.2%

Sound System ....................................................................................................... Dolby Digital

Convenience

Child protection ...................................................................................................... Rating Level

Power

Power supply ............................................................................................. 110-240V, 50-60 Hz

Standby power consumption ......................................................................................... < 1.5 W

Power consumption ............................................................................................................. 8 W

Cabinet

Dimensions (W x H x D) 218 x 90 x 221.5 mm

Net Weight ................................................................................................................... 1.095 kg

Packaging Dimensions (H x W x D) . ..........................................................................................

................................................................................................................... 248 x 267 x 130 mm

Gross weight .................................................................................................................... 1.5 kg

Speci cations and external appearance are subject to change without notice.

1-3

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

HANDLING CHIP COMPONENTS

1-4

SERVICE AIDS

1-5

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

GB

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.

WARNING

GB

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

!

.

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

ESD

CLASS 1

LASER PRODUCT

Lead free

INSTRUCTIONS ON CD PLAYABILITY

Customer complaint

"CD related problem"

Set remains closed!

check playability

1

1-6

playability

ok ?

Y

Play a CD

for at least 10 minutes

check playability

playability

ok ?

Y

N

"fast" lens cleaning

check playability

playability

ok ?

N

3

For flap loaders (= access to CD drive possible)
cleaning method

4 is recommended

Standard repair procedure

N

Y

clean the lens

check playability

playability

ok ?

check "EYE-Pattern"

4

Y

N

5

return set

add Info for customer

"SET OK"

return set

1 - 7

For description - see following pages

2

replace Signal Processor

return set

EYE-Pattern

ok ?

Y

check Laser current

Laser current

ok ?

Y

check CD Drive offsets

Y

CD Drive offsets

ok ?

N

replace CD Drive

6

return set

N

replace CD Drive

7

return set

N

replace CD Drive

return set

INSTRUCTIONS ON CD PLAYABILITY

1-7

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

4

LIQUID LENS CLEANING

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.

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.

2

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.

3

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.

Sanyo DA12T3

CD Drive

A

A

F

C

B

E

C

D

E

VCC

B

VREF

F

D

9

10

11

12

13

14

15

16

1800

+5V_HF

VrefCD10

A

D

E

B

C

F

GND

8

E

D

A

B

C

F

Laser power control

100n

2878

470n

2876

3821

1R

1K

3823

2880

33p

+5V

BC807-40

7879

3817

47R

3820

4R7

47R

3819

1n

2879

2877

47u

1

8

4

7811-A

LM358D

3

2

10K

3822

47R

3818

2841

100n

47n

2869

+5V_HF

LASER DIODE

U >250mV

->Laser damaged !

4,6V

3V

3,3V

3,9V

2V

0,17V

0,17V

Sanyo
DA12T3

HF-Amplifier

D3

D2

D1

680R

3905

3903

3K3

BC847B

7877

47n

2818

1K5

3902

5

7

4

2

1

6

3

64

8

9

10

11

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

LD

ON

D1

D2

D3

D4

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

INSTRUCTIONS ON CD PLAYABILITY

1-8

5

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.

6

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.

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.

good

bad

7

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.

System , Region Code , etc. Setting Produre

2 - 12 - 1

1) System Reset

(1) System reset

a) Press “setup” button on R/C, TV will show the “setup” menu.
b) Select the menu using the q on R/C.

c) Selcet default to restore system setting.

remark: But can’t restore region code default setting.

(2) Region code reset

a) Open CD Door.

b) Press “stop” button on RC, then press “0000” TV Display

”DEFAULT”.

c) The system will switch to standby when finished,and region code

will to be default setting.

2) Region Code Change

a) Press “5168” on R/C in open mode.
b) Use "q” “p” on R/C to selece desirde region code in custorner

page.

c) Pess “OK” to confirn:

1 USA

2 EU

3 AP

4 Australia, NZ, Latam

5 Russia,INDIA

6 CHINA

5) Upgrading new sofeware

a) Open the CD door,then insert the CD-R program disc.

b) Close the CD door.

c) TV will show the upgrade prompt menu, and the system will auto

upgrading, the system will switch to standby when  nish upgrading.
* the latest upgraded is in version VER 070602.

CAUTION !

This information is con dencial and may not be

distributed. Only a quali ed service person should

reprogram the Region Code.

3) Password Change

a) Press “setup“ button on R/C,TV shows the “setup“ menu.
b) Press "u” to select “password”, then press “u/OK”.

* 0000 is default password supplied.

4) Check on the Sofeware Version

a) Open the CD door.

b) Press “stop 159” button on R/C.

c) TV will show the version on screen.

REPAIR INSTRUSTRATOR

2 - 22 - 2