Philips MCM355 Manuel utilisateur

MCM355/12

transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without

the prior permission of Philips.

Published by SL 0915 Service Audio Printed in The Netherlands Subject to modification

Micro System

Version 1.0

CLASS 1

LASER PRODUCT

TABLE OF CONTENTS

Page

Location of PCBs..................................................................1-2

Speciﬁcations .......................................................................1-3

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

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

CD Playability Check..................................................1-6 to 1-7

Software Version Checking .....................................................2

Set Wiring & Block Diagram....................................................3

Audio AMP Board....................................................................4

MCU & USB & Headphone Boards.........................................5

Touch Panel & VFD & Power Key Boards...............................6

Set Mechanical Exploded View & Parts List............................7

Revision List............................................................................8

1-2

VERSION VARIATIONS

Type /Versions:

Board in used:

MCM205

Service policy

MAIN BOARD

MCU BOARD

USB JACK BOARD

* TIPS : C -- Component Lever Repair.

M -- Module Lever Repair

-- Used

/12 /05 /55 89/

16/85/

DISPLAY & KEY BOARD C

TUNER BOARD M

HEADPHONE BOARD C

/37

C/M

DISPLAY & KEY BOARD

HEADPHONE BOARD

MCU BOARD

TUNER BOARD

USB BOARD

MAIN BOARD

PCBS LOCATION

Specifications

Amplifier

Rated Output Power4X50W RMS

Frequency Response 63 - 14000 Hz, ±3dB

Signal to Noise Ratio >62dB

Disc

Laser Type Semiconductor

Disc Diameter 12cm/8cm

Support Disc CD-DA, CD-R,

CD-RW, MP3-CD,

WMA-CD

Audio DAC 24Bits / 44.1kHz

Total Harmonic

Distortion <1%

Frequency Response63Hz - 14kHz

S/N Ratio >65dBA

Tuner (FM)

Tuning Range 87.5 - 108 MHz

Tuning grid 50 KHz

Sensitivity

- Mono, 26dB S/N Ratio <22 dBu

Search Selectivity <28 dBu

Total Harmonic Distortion<3%

Signal to Noise Ratio >45 dB

Speakers

Speaker Impedance 6ohm

General information

AC power 220 - 230V,

50Hz

Operation Power

Consumption 42W

Standby Power

Consumption <20W

Eco Standby Power

Consumption <0.8W

Dimensions

- Main Unit (W x H x D)

- Speaker Box (W x H x D)

173 x 257 x

240mm

173 x 257 x

240mm

Weight

- With Packing

- Main Unit

- Speaker Box

10.8 kg

2.3 kg

2 x 2.8 kg

USB playability information

Compatible USB devices:

USB flash memory (USB 2.0 or•USB1.1)

USBflash players (USB 2.0 or•USB1.1)

memory cards (requires an additional•card reader to work with this

MCM355)

Supported formats:

USB or memory file format FAT12,•FAT16, FAT32 (sector size: 512 bytes)

MP3 bit rate (data rate): 32-320 Kbps•and variable bit rate

WMA v9 or earlier•Directory nesting up to a maximum•of 8 levels

Number of albums/ folders:•maximum 99

Number of tracks/titles: maximum•999

ID3 tag v2.0 or later•File name in Unicode UTF8•(maximum length: 128 bytes)

Unsupported formats:

Empty albums: an empty album is an•album that does not contain MP3/

WMA files, and is not be shown in

the display.

Unsupportedfile formats are•skipped. For example, Word

documents (.doc) or MP3?fileswith

extension .dlf are ignored and not

played.

AAC, WAV, PCM audio?files•DRM protected WMA?files (.wav,•.m4a, .m4p, .mp4, .aac)

WMA files in Lossless format•

Supported MP3 disc formats

ISO9660, Joliet•Maximum title number: 512 (depending•on file name length)

Maximum album number: 255•Supported sampling frequencies: 32 kHz,•44.1kHz, 48 kHz

Supported Bit-rates: 32~256 (kbps),•variable bit rates

1-3

1-4

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

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

1-5

SERVICE AIDS

GB WARNING

All ICs and many other semi-conductors are

susceptible to electrostatic discharges (ESD).

Careless handlingduringrepair can reduce life

drastically.

When repairing,make sure thatyouare

connected with the same potentialas the mass

ofthe set viaawrist wrapwith 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 is recommended

INSTRUCTIONS ON CD PLAYABILITY

1 - 6

Exchange CDM

- 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 ) 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

1 - 7

How to read software version,

1. Standby mode, press and hold PLAY button for 5 seconds,

LCD Display shows existing MCU software version, eg. “V300313”.

SERVICE TEST PROGRAM

2-1 2-1

2. No USB status, press and hold POWER and SOURCE buttons for 3 seconds,

LCD Display shows existing USB software version, eg. “V0022”.

3-1 3-1

SET BLOCK DIAGRAM

3-2 3-2

SET WIRING DIAGRAM

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