Philips MCD297/05, MCD297, MCD297/12, MCD297/55, MCD297/61 Service Manual

...

Version 1.1

MCD297/12/58

DVD Micro Theatre

Published by SL0810 Service Audio Subject to modification

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.

PCBs location & Version Variations...............................................1-1

Technical specification ...................................................................1-2

Service measurement setup..........................................................1-3

Service aids ..................................................................................1-4

Instructions on CD playability .............................................2-1 to 2-2

Connections and controls ......................................................3-1...3-2

Software version check .................................................................4-1

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

LCD & Key Board

circuit diagram ..................................................................7-1...7-2

layout diagram ..........................................................................7-3

Rectifier (Power) Board & USB Jack Board

Rectifier Board circuit & layout diagram ...................................8-1

USB Jack Board circuit & layout diagram .................................8-2

Main Board

circuit diagram ..................................................................9-1...9-5

layout diagram .................................................................9-6...9-7

Servo (DVD MPEG) Board

circuit diagram. .............................................................10-1...10-8

layout diagram ........................................................................10-9

Exploded view diagram ...............................................................11-1

Mechanical partslist .....................................................................11-2

Electrical partslist...............................................................12-1...12-3

TABLE OF CONTENTS

Revision list..................................................................................13-1

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

RECTIFIER BOARD (POWER BOARD)

LCD & KEY BOARD

MAIN BOARD

SERVO BOARD (DVD MPEG BOARD)

1 - 1

PCBS LOCATION

1-2

/12 /58

xxniRDC/nixuA Line Out Video Out Subwoofer Out Digital Out Karaoke Features Voltage Selector ECO Power Standby (LCD Display Off) USB Direct

Type /Versions: MCD297

Features in used:

/05

VERSION VARIATIONS

Type /Versions:

Board in used:

MCD297

Service policy

MAIN BOARD SERVO(MPEG) BOARD USB JACK BOARD

RECTIFIER (POWER) BOARD

* TIPS : C -- Component Lever Repair.

M -- Module Lever Repair

-- Used

C M

/05 /12

/55

89/16/85/

Feature diffrence

C M

LCD & KEY BOARD

C C C

TUNER MODULE

SPECIFICATIONS

AMPLIFIER

Output power ....................................... 2 x 15 W RMS

Signal-to-noise ratio ....................................... ≥ 60 dBA

Frequency response ......... 63 – 16000 Hz, ± 3 dB

Input sensitivity AUX ....................... 0.5 V (max. 2 V)

Impedance loudspeakers ......................................... 4 Ω

Impedance headphones .................... 32 Ω -1000 Ω

DVD PLAYER

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

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

Video Decoding ........................... MPEG-2 / MPEG-1

Video DAC ................................................................ 10 Bits

Signal System ............................................... PAL / NTSC

Video Format ..................................................... 4:3 / 16:9

Video S/N ........................................... 56 dB (minimum)

Composite Video Output ................ 1.0 Vp-p, 75 Ω

S-Video Output ............................. Y - 1.0 Vp-p, 75 Ω

........................................................... C - 0.286 Vp-p, 75 Ω

Audio DAC .......................................... 24 Bits / 96 kHz

Frequency Response .... 4 Hz - 20 kHz (44.1kHz)

...................................................... 4 Hz - 22 kHz (48kHz)

...................................................... 4 Hz - 44 kHz (96kHz)

Digital Output .........................................................................

....... SPDIF (Sony Philips digital interface) Coaxial

Number of programmable tracks ......................... 16

Signal-to-noise ratio ....................................... ≥ 65 dBA

Channel separation .......................... ≥ 40 dB (1 kHz)

Total harmonic distortion............... < 0.1% (1 kHz)

TUNER

FM wave range ...................................87.5 – 108 MHz

MW wave range ................................ 531 – 1602 kHz

Sensitivity at 75 Ω

– mono, 26 dB signal-to-noise ratio ............ 2.8 µV

– stereo, 46 dB signal-to-noise ratio ........ 61.4 µV

Selectivity ................................................................. ≥ 28 dB

Total harmonic distortion..................................... ≤ 5%

Frequency response ............ 63 – 5500 Hz (-6 dB)

Signal-to-noise-ratio ...................................... ≥ 50 dBA

USB PLAYER

USB ......................................................................... V2.0/ V1.1

...................................... support MP3/WMA/JPEG files

Number of albums/ folders ................ maximum 99

Number of tracks/titles ...................... maximum 500

TAPE DECK

Frequency response

Normal tape (type I) ...... 80 – 12500 Hz (8 dB)

Signal-to-noise ratio

Normal tape (type I) .................................... 50 dBA

Wow and flutter ......................................... ≤ 0.4% DIN

SPEAKERS

2-way bass reflex system

GENERAL INFORMATION

AC Power ..................................... 220 – 240 V / 50 Hz

Standby power consumption ............................ ≤ 7W

Eco power Standby................................................ < 1W

Dimensions

Main Unit(w x h x d) ......... 152 x 228 x 237(mm)

Speakers (w x h x d) ..........................................................

...................................................... 140 x 228 x 212 (mm)

Weight

With Packing ............................................................... 7.7 kg

Main Unit ................................................................... 3.34 kg

Speaker box ............................................................. 2.85 kg

Specifications and external appearance are subject to change without notice.

1 - 2

1-3

LF Generator

e.g. PM5110

Recorder

Use Universal Test Cassette CrO2 SBC419 4822 397 30069

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

S/N and distortion met

e.g. Sound Technology ST170

DUT

or Universal Test Cassette

Fe SBC420 4822 397 30071

LEVEL METER

e.g. Sennheiser UPM550

S/N and distortion meter

e.g. Sound Technology ST1700B

DUT

Use Audio Signal Disc (replaces test disc 3)

SBC429 4822 397 30184

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

DUT

S/N and distortion meter

e.g. Sound Technology ST1700B

Frame aerial

e.g. 7122 707 89001

Tuner AM (MW,LW)

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).

RF Generator

e.g. PM5326

Ri=50:

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

DUT

RF Generator

e.g. PM5326

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).

Ri=50:

Tuner FM

MEASUREMENT SETUP

1-4

SERVICE AIDS

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!

Play a CD

for at least 10 minutes

playability

ok ?

playability

ok ?

add Info for customer

"SET OK"

check playability

playability

ok ?

check playability

return set

Customer complaint

"CD related problem"

"fast" lens cleaning

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

4 is recommended

INSTRUCTIONS ON CD PLAYABILITY

2 - 1

Exchange CDM

1 - 4 For description - see following pages

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.

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

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.

INSTRUCTIONS ON CD PLAYABILITY

2 - 2

3 - 1

CONNECTION AND CONTROLS

3 - 2

CONNECTION AND CONTROLS

How to set region code:

1) Press "SYSTEM MENU" on Remote Control ---->

select "DEFAULT" and then select "RESTORE" .

It can reset the region code.

2) To change the region code ----> open CD door at CD mode and press "5168" on RC

----> select

"REGION" and select region code.

1) MCU version : at standby mode, press and hold "DBB" & "PLAY" buttons at the same time. Servo version : CD mode, open CD door and press "5168" on Remote Control.

Software checking:

SOFTWARE VERSION CHECKING AND REGION CODE RESET

4 - 1 4 - 1

SET BLOCK DIAGRAM

5 - 1

6 - 1

SET WIRING DIAGRAM

7 - 17 - 1

CIRCUIT DIAGRAM - LCD & KEY BOARD Part 1

7 - 2 7 - 2

CIRCUIT DIAGRAM - LCD & KEY BOARD Part 2

LAYOUT DIAGRAM - LCD & KEY BOARD

7 - 3

CIRCUIT DIAGARM - RECTIFIER BOARD

8 - 1

LAYOUT DIAGARM - RECTIFIER BOARD

(DVD MPEG PCB)

CIRCUIT DIAGARM - USB JACK BOARD

8 - 2

LAYOUT DIAGARM - USB JACK BOARD

9 - 1

CIRCUIT DIAGRAM - MAIN BOARD

9 - 2

CIRCUIT DIAGRAM - MAIN BOARD

9 - 3

CIRCUIT DIAGRAM - MAIN BOARD

9 - 4

CIRCUIT DIAGRAM - MAIN BOARD

9 - 5

LAYOUT DIAGRAM - MAIN BOARD

9 - 6

9 - 7

LAYOUT DIAGRAM - MAIN BOARD