Philips mcm 726 service manual

Page 1

MP3 Micro Hi-Fi System MCM726

W@ all Versions
Sow-ca
SerVIce

Servic al

summer EDMPAUT
MPJVCD PmrBACK
= (MSG 0 DEB
: '. DIGITAL Aunin DIGIrAL Aumn
. Recordable 1' eWritable

..-..... . was was

DIRECT DIGITAL Aunio

TABLE OF CONTENTS
Handling chip components ........................................................... 1-1 VFD Board
Leadtree and safety information ................................................... 1-2 circuit diagram.

layout diagram.

Service tools .
Service measuremen se up.

Cassette Board
circuit diagram.
layout diagram .

Connections and controls.

Dismantling instructions

Tuner Board
circuit diagram.

Block diagram... layout diagram.

Wiring diagram

Rectifier Board

Main Board circuit diagram.
circuit diagram. layout diagram.
layout diagram.

C Music Board Exploded view diagram
circuit diagram. Mechanical partslist ......
layout diagram.

Electrical partslist ..
Supplier Bomlist

CLASS 1

©Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands LASER PRODUCT
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 othenrvise without the prior permission 01 Philips.

Published by LX 0717 Service Audio Subject to modification 3141 785 31790
Version 1 .0

as PHILIPS

Page 2

HANDLING CHIP COMPONENTS

GENERAL

CHIP
COMPONENT
SOLDER suLuElt
COPPER max
ma.
GLUE
a
9 e? a
B a

\

SERVICE PAIXAGE

DISNOUN'IING

VACUUM PlsmN
0522 395 10052

MOUNTING
u. A PAIR OF WEEZERS

l/I/

cnRREcI

COPPER TRAKX

SOLDERI Na
R

I
2;") GUMENENT

suLnERINu A
IRON
9.]. WELLER
:oldal lip PT-H7
A sum
maintain".
suLuENlNII SOLDERING PRESSURE
IRON IRON
sown: WICK
I322 321 mm
rug. A PAIR or IvtEEZEIis SOLDERING TIME SUI-DER I!
§ <3 sac/side ems-menu
$ PRESSURE SULDERING
IRON
B
fifiERING
CLEANING EXAMPLES
SDLDER WIEK c
E CORRECT E E
PRECAUTIONS
SOLDERING
IRON

WARNING

All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD). Careless handling during
repair can reduce lile drastically.

When repairing. make sure that you are connected with the

same potential as the mass at the set Via a wristband With
resistance Keep components and tools at this potential.

® ATTENTION

Tous les IC 61 beaucoup d'auIres seml-ConducIems 50m
senslhIes aux déchaiges sIathues (ESD). Leui longeVite
paunait éIre considevabIemenI ecourte'e pal le IaiI qu'aucune
precaution nest pllse a leur manipulation.

Lars de répalatlons, s'assulel de blen étle IeIlé all méme
potentiel que la masse de l'appareil et enlileer le biacelet
52m d'une Iésislarlce de sécurilé.

VeiHeI a ce que Ies compusanls alnsl que Ies cutlis que l'on
uIIIIse solenl égaiement 'a ce pDIeVIIIEI

Salety regulations require that the set be restored to its
original condition and that pans which are identical with
those specilied be used

Salety components are marked by the symbol A

Les normes de sécurité exigent que lappareil soit remis
a letat dorigine et que solent utilisees les pieces de
rechange identiques a celles speciliees.

Les composants de sécurité sent marques

DANGER InVISIbIE laser ladlalion when open
AVOID DIRECT EXPOSURE TO BEAM.

© Varning !
OsanIg Iaselslralning nar appalaten aI oppnad och
sparlen av ulkopplad. Bellakla e] shale".

Advarsel !
Usynlrg laserslraling ved aiming nar slkkerhedsthrydere
er ude allunhtion. Undga udsaettelse tor slraling.

A

Q) WAFINUNG

AIle ICs urld viele andere Halbleiler sirld emlendllch
gegenuoer elehtrostatischen Entladungen (ESD).
LInsorglaltige Behandlung im RepavallmalI kann die
Lebensdauev drastlsch reduzleren

Sovgen Sle damn daB Sle lm RepavalurIalI libel em PuIsV
armband mil Widersland mlI dem MassepotenllaI des
Gerales verhunden slrld

Halten Sle Bamelle und HIIIsmitIeI ehenIalIs auI diesem
PoIenIlal.

SAFETY

Bel ledel Reparalur smd die geitenden Slchelhellsvol-
sohliflen zu beachlen. Del OrlglnaIZusIand des Ger'ates
dart nlcm veranderl welden. Fur Reparaluven smd Originai-
ersalzleiie zu verwenden.

Sicherheitsbautefle sind durch das Symbol A markien.

CLASS 1

LASER PRODUCT

@Varailus !

Avatussa Iameessa la suojaIuklluksen ohltehaessa oIeI almlna

nakymaItbmalIe IaserlsaIelIlee. AIa kaISo saleeseen I

® WAARSCHUWING

Alle IC's en vele andere hallgeleiders zijn gevoellg voor
electrostatrsche ontladingen (ESD).

0nzorgvuldig behandelen Illdens repaiatie han de levensduur
drastisch doeri vermindern. Zorg enloor dat u tildens reparalle
vla earl polsband met weerslarld verhonden hem met helzelide
potentiaal als de massa van het apparaat.

Houd componenten en hulpmrddelen 00k op ditzellde potentraal

(D AVVERTIMENTO

Tum It: s palecchi semi-condultorl sono sensibiii aile scarlche
SIaIICIIE (ESD).

La lore longevita polrebbe essere fonemenle ridatta in case di
non ossewazlone deila pit] grands cauzione aIIa Iom
manlpaiazione. Durante Ie ripalaliorli occorle quindi essere
coilegato ailo sIesso polenzlaie che quelio delia massa
deIapparecchlo Iramite urI blacclaIeno a reslslenza
Assicurarsi che i componenti e anche gli utensili con quali si
Iavora siano anche a queslo potenziale

Veiligheidsoepalingen vereisen, dat het apparaat in ziin
oorspronhelilihe toestand wordt levuggebracm en dal
onderdeIen lderll'lek aan de gespeclIlceerde warden toegepast
De Veiligheidsonderdelen zljrl aangeduld met het symbooI

Le norme di sicurezza estigono che l'apparecchio venga
riniesse nelle cendizioni originali e che siano utilizzati i
pezzi di ricambiago identici a ouelli specilicati
Componenty di sicurezza sono marcati con

Alter servicing and belore returning the set to customer
perlorm a leakage current measurement test Ironi all
exposed metal parts to earth ground, to assure no
shock hazard exists

The Ieakage current must not exceed 0 5mA.

Pour vetre securite, ces documents doll/em etre utilises par
des specialistes agrees seuls hablhlés a reparervetre
appareil en patina".