Philips MCD-909 Service Manual

DVD Micro Theatre

MCD909

TABLE OF CONTENTS

Location of PC Boards ............................................. 1-1

Electronic Specification

Measurement Setup ................................................ 1-3

Service Aids............................................................... 1-4

Software Version Check & Upgrade ........................ 2-1

Malfuction Check Chart ............................................. 2-2

Disassembly Diagram................................................ 3-1

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

Wiring Diagram ......................................................... 5-1

Display Board ............................................................... 6

Circuit diagram ...................................................... 6-1

Layout diagram ...................................................... 6-2

Prepositive Board ......................................................... 7

Circuit diagram ...................................................... 7-1

Layout diagram ...................................................... 7-2

AMP Board .................................................................. 8

Circuit diagram ...................................................... 8-1

Layout diagram ...................................................... 8-2

2009

............................................. 1-2

ECO Control Board Diagram ....................................... 9

Small Board Diagram ...................................................10

Decoder Board ............................................................11

Circuit diagram ....................................... 11-1 to 11-8

Layout diagram ..................................................... 11-9

Exploded View ............................................................12

DVD Exploded View ............................................. 12-1

AMP Exploded View ............................................. 12-2

Service Partlist .......................................... 13-1 to 13-2

Factory Partlist .......................................... 14-1 to 14-6

DB 0908

Version 1.0

3141 785 33540

Location of PC Boards

1-1

SCART BOARD

DISPLAY BOARD

DECODER BOARD

USB BOARD

Type /Versions:

Board in used:

Service policy

BUTTON BOARD DISPLAY BOARD

USB BOARD LAMP BOARD DECODER BOARD

AMP BOARD

VACUUM TUBE LAMP BOARD

ENCODER BOARD PREPOSITIVE BOARD

ECO-POWER BOARD

LAMP BOARD

(Same location on the other side)

/05

/12

M C

M M M C M M C

LAMP BOARD

(Same location on the other side)

/55

/37

/58

MCD909

/61

AMP BOARD

VACUUM TUBE LAMP BOARD

ENCODER BOARD

/79

/93

/94

/96

PUSH KEY BOARD

/98

Type /Versions:

Features

Feature diffrence

RDS VOLTAGE SELECTOR ECO STANDBY - DARK

TDS

* TIPS : C -- Component Level Repair.

M -- Module Level Repair

-- Used

/05

/12

/37

/55

/58

MCD909

/61

/79

/93

/94

/96

/98

Specifications

1-2

AMPLIFIER

Rated Output Power ............................ 2 x 75W RMS

S/N ..............................................................>=65dBA

Frequency response .................... 40Hz-20KHz,±3dB

Aux Input ...................................... 0.5V RMS 47kohm

DISC

Laser Type ........................................ Semiconductor

Disc Diameter ............................................ 12cm/8cm

Support Disc ..............................................................

............ DVD,Divx,CD-DA,CD-R,CD-RW,MP3,WMA

Audio DAC........................................ 24Bits / 44.1kHz

Total Harmonic Distortion ...... 4Hz - 20kHz (44.1kHz)

S/N ................................................................>65dBA

TUNER

FM Tuning Range ............................ 87.5 – 108 MHz

Tuning grid ............................................ 50K/100KHz

Sensitivity

- Mono,26dB S/N .............................................. 5uV

- Stereo,46dB S/N ........................................ 100uV

Selectivity ........................................................ >33dB

Image Rejection ..........................................25-30 dB

Total Harmonic Distortion .................................. 2-3%

S/N ................................................................>33dBA

SPEAKERS

Speaker Impedance .......................................... 4ohm

Speaker Driver,base ........................................ 5 1/4"

Speaker Driver,tweeter ...................................... RT-2

Frequency response .......................... 60Hz - 20 KHz

GENERAL INFORMATION

Total Output Power ................................ 150 W RMS

AC Power .............................. 220V-230V / 50Hz(/12)

240V/50Hz(/79).220V / 50Hz(/93).220V / 60Hz(/61)

Operation Power Consumption .......................... 85W

Standby Pwer Consumption .............................. <4W

Eco Standby Pwer Consumption............................ NA

USB Direct................................................ Version 1.1

Dimensions

- Main unit (w x h x d) ..................280X130X290mm

- Speaker box(w x h x d) ............ 185x305x225mm

Weight

- With Packing ................................................24.5 KG

- Main unit ...................................................... 6.78KG

- Speaker box ....................................................14KG

- Subwoofer ............................................................NA

Specifications and external appearance

are subject to change without notice.

MEASUREMENT SETUP

Tuner FM

1-3

Bandpass

LF Voltmeter

e.g. PM2534

RF Generator

e.g. PM5326

DUT

250Hz-15kHz

e.g. 7122 707 48001

Ri=50:

S/N and distortion meter

e.g. Sound Technology ST1700B

Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).

Tuner AM (MW,LW)

RF Generator

e.g. PM5326

Ri=50:

DUT

Frame aerial

e.g. 7122 707 89001

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage. Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).

Use Audio Signal Disc (replaces test disc 3)

DUT

SBC429 4822 397 30184

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

or Universal Test Cassette

LF Generator

e.g. PM5110

Fe SBC420 4822 397 30071

DUT

S/N and distortion met

e.g. Sound Technology ST170

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

SERVICE AIDS

1-4

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

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

ESD

CLASS 1

LASER PRODUCT

Lead free

INSTRUCTIONS ON CD PLAYABILITY

Customer complaint

"CD related problem"

Set remains closed!

check playability

1-

playability

ok ?

Play a CD

for at least 10 minutes

check playability

playability

ok ?

"fast" lens cleaning

check playability

playability

ok ?

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

4 is recommended

add Info for customer

"SET OK"

return set

1 - 4 For description - see following pages

Exchange CDM

INSTRUCTIONS ON CD PLAYABILITY

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 t10seconds

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 t10seconds

Fingerprint t10seconds Black dot from 01:05 to 01:25

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

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

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.

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.

Software Version Check & Upgrade

Upgrade software

1.Download the software from Philips support website

http://www.philips.com/support

2.Put in the Software CD Disc or USB, untill hear a long ding voice while it is loading. Software upgrade finish.

Software check

Press the “display” button quartic continuously on remote control, display showing as below:

Vxx dyyyy

2-1

Malfunction follow check chart

2-2

3-1

Disassembly Diagram

A. Loosen screws 9 PCS 3 X 6 BMTT to remove bottom chassis

-- DVD Part

B.Loosen screws 2 PCS 3 X 6 FMTT C.Loosen screws 5 PCS 3 X 10 BA D.Loosen screws 2 PCS 3 X 10 BA E.Loosen screws 2 PCS 3 X 10 BTH

F. Loosen screws 1 PCS 3 X 4 FMTT G.Loosen screws 2 PCS 3 X 6 BMTT H.Loosen screws 6 PCS 3 X 10 BTH

I . Loosen screws 5 PCS3 X 6 BM

J. Loosen 6PCS 3×12BTH screws to dissassembly mechanism

K. Loosen 9PCS 2.6×8PA screws to disassembly display board

3-2

Disassembly Diagram

-- AMP Part

A. Loosen screws 9 PCS 3 X 6 BMTT to remove bottom chassis

B.Loosen 2 PCS 3 X 6 FMTT screws C.Loosen 2 PCS 3 X 10 BMTT screws D.Loosen 2 PCS 3 X 10 BTH screws

F. Loosen 1 PCS 3 X 4 FMTT screws G. Loosen 2 PCS 3 X 6 BMTT screws H. Loosen 6 PCS 3 X 10 BTH screws

I. Loosen 4 PCS 3 X 6 BM screws J. Loosen 2 PCS 3 X 4 BMTT screws K. Loosen 2 PCS 3 X 6 BM screws

L. Loosen 10 PCS 2.6X 8 PA screws M. Loosen 1 PCS 3 X 10PA

screws

Block Diagram

4-1

BLUE

GREEN

RED

VIDEO

S-VIDEO

COAXIAL

OPTICAL

HDMI/CEC

DVD LINE-L

DVD LINE-R

AUX-L

AUX-R

B OUT

GR OUT

ROUT

V-OUT

S-V OUT

DVD LINE-L

DVD LINE-R

AUX-L IN

AUX-R IN

CEC

Decode Board

HDMI

CEC

DTA9950

CEC3.3V

DVD5V

MEPG2

BLOCK

MT1389FE

D-FL

D-FR

DVD

MECHANISM

Loader motor driver

CD5954

D-FR

D-FL

AUX-L IN

AUX-R IN

TUNER-RIN

TUNER-LIN

REM-SENSOR

REM1GND2Vcc

DVD5V

SDA

SCL

PT2314

DVD ON/OFF

VFD KEY

CONTROL

CPU5V

PT6311

Displayboard

MCU

R5R0C028

24C02

CPU5V

MUTE

STANDBY

DVD ON/OFF

POWER ON/OFF

CPU5V

STANDBY

AMP Board

TL072

12AX7

TUBE

SELENIUM

FILTER

+vs

-vs

TDA8920

+vs

-vs

Prepositive Board

7812

POWER ON/OFF

TUNER-RIN

TUNER-LIN

TUNER

BLOCK

IC:4705

FM+5V

DVD5V

SM9435A

DVD POWER

SWITCH

CONTROL

FM+5V

CPU5V

+12V

POWER SWITCH

CONTROL

VS1101

7805

-vs

+vs

AMP

SELENIUM

FILTER

DVD

SELENIUM

FILTER

MCU

SELENIUM

FILTER

POWER

TRANSFORMER

POWER

TRANSFORMER

POWER

SWITCH

AC230

+ 28 hidden pages