Philips ACT-300 Service manual

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

Features ............................................................................1-1

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

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

Instruction for use.......................................................1-3..1-6

Safety & Warnings.............................................................1-7

Service hints

Repair positions ............................................................2-1

Dismantling CD-door.....................................................2-1

Handling chip components............................................2-2

Service tools..................................................................2-2

Pin description of ICs .................................................3-1..3-4

Start-up procedure.............................................................3-5

Service Test Program........................................................3-5

Blockdiagram.....................................................................3-6

Circuit diagrams

Supply part ....................................................................4-1

CD part ..........................................................................4-2

DSP part........................................................................4-3

Audio part ....................................................................4-4

Control part ..................................................................4-5

Layout diagram - copper side view................................4-6

Layout diagram - component side view.........................4-7

Exploded view ...................................................................5-1

Mechanical partslist...........................................................5-1

Electrical partslist .......................................................6-1..6-6

Published by LX 0241 Service Audio Printed in The Netherlands Subject to modification



Portable compact disc player

CLASS 1

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 otherwise without the prior permission of Philips.

ACT300

all versions

psa[cd8

1-1

TECHNICAL SPECIFICATION

General

Dimensions (Dia x H) : 106 x 28mm Weight without batteries : 145g

Laser

Output power : <5mW (3mW typ.) Wavelength : 780nm

Shock resistance (ESP=off)

+X/-X direction : ≥1.0g +Y/-Y direction : ≥1.0g +Z/-Z direction : ≥1.0g

Power supply modes

DC-in socket :2.9..6.5V Primary batteries(2 x LR6) :1.7..3.6V Voltage protection DC-in socket :-14.0..+14.0V

Battery lifetime

Battery level detection

Current consumption MP3-playback

Current consumption CD-playback

Headphone out (measured with 16Ω load, DBB/ESP off)

Output power (THD=10%)

all versions : 10mW (+1/-3dB)

Frequency response CD (1mW) : 100Hz-20kHz within 6dB S/N ratio CD (unwght) : ≥80dB (83dB typ.) S/N ratio CD (A-wght) : ≥82dB (85dB typ.) THD+N CD (1kHz, 1mW) : ≤1% (0.2% typ.) Channel crosstalk (1kHz, no load) : ≤-24dB (-44dB typ.) Channel unbalance (-40dB) : ≤5dB Volume attenuation (1kHz) : ≥60dB

Dynamic Bass Boost DBB

Measurement setup CD Use Audio Signal disc SBC429 4822 397 30184

Play mode

Jump mode

Charge-mode

140mA typ.

n/a n/a

Stand- by

(excl.recharge)

30mA typ. 450µA typ.

320mA typ. 400mA typ.

100mA typ. 170mA typ. 120mA typ.

LEVELNOITCETED seirettabyramirP

Battery empty

Battery week 1

Battery week 2

Battery week 3

1.8V

+100/-50mV

battery empty level +

0.9V ± 100mV

battery empty level +

0.6V ± 100mV

battery empty level +

0.3V ± 100mV

EDOMDC

FFOPSE

EDOMMP3

NOPSE

2.8 h

(3.5h typ.)

2.5 h

(3.5h typ.)

4.9 h

( 7h typ.)

3.8 h

(5.3h typ.)

ESP LP ESP LP

> > > >

Feature Overview

Low pass filterDUT S/N and distortion meter

i.e. Sennheiser UPM550

with FF-filter

Level meter

i.e. Sound Technology ST1700Bi.e. 4822 395 30204

22kHz 13th order

0dB

± 2dB

0dB

± 2dB

0dB

± 2dB

+5dB

± 2dB

0dB

± 2dB

+9dB

± 2dB

DBB 1

+5dB

± 2dB

0dB

± 2dB

0dB

± 2dB

TREBLE ON

DBB 2



CD-PORTABLE/MP3

Play mode

Jump mode

Charge-mode

140mA typ.

n/a n/a

Stand- by (excl.recharge)

30mA typ. 450µA typ.

220mA typ. 300mA typ.

115mA typ. 170mA typ. 138mA typ.

EDOMDC

EPYTYRETTAB

NOPSE



OUND PRESETS

zHk36 zHk1 zHk01

esnopserycneuqerF

seirettabyramirP

6RLx2

EDOMNOITAREPO

NOPSE

EDOMNOITAREPO

N/OFFOPSE

LPPSE

)V5.4(YLPPUSNI-CD )V52.2(YLPPUS.TTAB

N/OFFOPSE

NOPSE

●

s / 495s180

● / ●

●

003TA

)snoisrevlla(

-/-

tibM46

-/-

SERUTAEF

FO

WM/MFRENUT

LPPSE

YTILIBITAPMOCELBATIRWER-DC

N CDDA / MP3OITCETORPPIKSCINORTCELE

EZISMARDPSE

NOITCNUFEMUSER/DLOH

SEGATSBBD

KCABDEEFCITSUOCA

LPPSE

YROMEMMARGORP

HMiN/dCiNNOITCNUFEGRAHCER

DERAPERPLORTNOCETOMERDROC

THGILKCABYALPSID

TUPTUOLATIGID/ENIL

1-2

contr ols

ont

view

rear view

the model number is located inside the cd door and the serial number is located inside the battery compartment .

ROF

SEIROSSECCA

T300CA

C00/ 10/ 11/ 71/

00/0713YA rotpadACD/CA

20/0713YA rotpadACD/CA

71/0713YA rotpadACD/CA

7E7/

SBC HJ020

enohpdaeHoeretS



MP3

AY3773

Remote control

AY3287

Handstrap

3140 118 33630

3140 118 32020

3140 118 33640

9082 100 00787

3140 118 51170

3140 113 10571

how to make a cd-rom with mp3 ﬁles

use your computer´s cd burner to record (“burn”) the music ﬁles from your hard disc

to a cd-rom. use either ISO 9660 disc format or UDF. some cd burner software like

e. g. “DirectCD” support the UDF format.

make sure that the ﬁle names of the mp3 ﬁles end with .mp3.

supported formats

this set supports:

disc format: ISO 9660, joliet, multisession, UDF,

enhanced music cd, mixed mode cd

mp3 bit rate: 32–320 kbps and variable bit rate

total number of music ﬁles and albums: around 350

(with a typical ﬁle name length of 20 characters)

note: the number of music ﬁles that can be played depends on the length of

the ﬁle names. with short ﬁle names more ﬁles will be supported.

all trademarks used are owned by their respective owners.

general information

ACCESSORIES

front view

1 display 2

adjusts the volume (down)

adjusts the volume (up)

4 5

skips backward and searches

backward

5 6

skips forward and searches forward

6 1

mp3-cd only: selects the previous

album or skips backward

7 2

mp3-cd only: selects the next album

or skips forward

adjusts eq (bass and treble)

8 2;

switches the set on, starts playback

and interrupts playback

9 9

stops playback and switches the set

off

rear view

1 hold/resume/ off

hold locks all buttons

resume stores the last position played

off switches resume and hold off

2 esp

electronic skip protection prevents

music interruptions caused by shocks

3 eq

selects the bass and treble adjustment

4 mode

selects playback options such as

shufﬂe and repeat

5 p

3.5 mm line out to connect the headphones the remote control this set to the audio input of your stereo equipment

opens the cd lid

7 battery compartment 8 DC

to connect the external power supply

controls

caution use of controls or adjustments or performance of procedures other than herein may result in hazardous radiation exposure or other unsafe operation.

−

CONNECTIONS AND CONTROLS

1-3

ﬁrmware upgrade

occasionally, philips releases new software (“ﬁrmware”) for your set.

1 connect the mains adapter to DC on the set and to the wall socket (see “mains

adapter”).

2 keep mode pressed for 3 seconds.

the type of your set and the current version of the ﬁrmware are displayed. Upgrade?

is displayed.

3 press 9.

4 visit the homepage http://www.nike-philips.com. check if there is a ﬁrmware ﬁle for

your set and if the ﬁrmware version is higher than the current version of your set.

download the ﬁle and burn it on a cd-rom.

5 insert the cd-rom into the set and keep mode pressed for 3 seconds.

Upgrade? is displayed.

6 press 2;.

Upgrading is displayed and upgrading starts. this may take some minutes. after

upgrading is ﬁnished, Upgrade completeis scrolled.

Wrong upgrade file is scrolled: your set already has the latest ﬁrmware or the

downloaded ﬁle does not correspond to your set.

Upgrade file defect is scrolled: the upgrade ﬁle has been damaged during the

download or when burning the cd-rom. download the ﬁle again, burn a new cd-rom

and try again.

No upgrade file is scrolled: no upgrade ﬁle was found on the inserted cd-rom.

note: if upgrading is interrupted accidentally, repeat step 6 until upgrading is completed successfully.

gener al in form ation

INSTRUCTION FOR USE

batteries (supplied or optionally available)

inserting batteries

open the battery compartment and insert 2 alkaline

batteries of type AAA (RO3, UM4).

do not use old and new or different types of

batteries in combination.

indication of empty batteries

replace the batteries or connect the

mains adapter as soon asAblinks and Replace

batteries is scrolled.

remove batteries if they are empty or if the set will

not be used for a long time.

batteries contain chemical substances,

so they should be disposed of properly .

average playing time of batteries under normal conditions:

alkaline

batteries

esp on

3.5 hours

esp and powersaving on

audio disc

5 hours

mp3-cd

7 hours

note: to switch on powersaving, press esp repeatedly during playback until ESP is shown (see “esp and powersaving”).

power supply

Repl

ace batte

AAA

power adapter (supplied or optionally available)

use only the AY 3170 power adapter (4.5 V/ 300mA direct current, positive pole to

the center pin). any other product may damage the set.

1 make sure the local voltage corresponds to the

adapter´s voltage. if your power adapter is equipped

with a voltage selector , set this selector to the local

power voltage if necessary .

2 connect the power adapter to DC on the set and to

the wall outlet.

note: always disconnect the adapter if you are not using it.

headphones (HJO20)

connect the supplied headphones to p.

note:pcan also be used for connecting this psa to

your hiﬁ system. adjust the volume and sound on

the psa and your hiﬁ system.

use your head when using headphones

hearing safety

do not play your headphones at a high volume. hearing experts advise that continuous

use at high volume can permanently damage your hearing.

trafﬁc safety

do not use headphones while driving a vehicle. it may create a hazard and it is illegal

in many countries. even if your headphones are an open-air type designed to let you

hear outside sounds, do not turn up the volume so high that you cannot hear what is

going on around you.

power supply / headphones

playing a disc

with this set you can play

8cm audio discs pre-recorded audio cds

8cm audio discs ﬁnalized audio cdrs and cdrws

8cm mp3-cds (cd-roms with mp3 ﬁles)

1 push the slider to open the cd lid.

2 insert a disc, printed side up, by pressing gently on

the disc´s center so that it ﬁts onto the hub. close

the lid by pressing it down.

3 press 2; to start playback.

Reading CD is displayed. playback starts.

the track type (CD or MP3), the current

track number and the elapsed playing time are

displayed. for an mp3 track, the album number is

also displayed and the ﬁlename is scrolled twice.

4 press 9 to stop playback.

the total number of tracks, the track

types (CD, MP3), the number of albums

on an mp3-cd and the total playing time

(of an audio disc only) are displayed.

5 to remove the disc, hold it by its edge and press the

hub gently while lifting the disc.

notes:

after pressing

it may take some time until the

ﬁrst mp3 track is played.

20 seconds after pressing

the set switches off

automatically.

basic functions

[CDA]

stop

1-4

pause

1 press 2; to interrupt playback.

the time where playback was interrupted

is blinking.

2 to resume playback press 2; again.

basic functions

LOVE01

0:24

INSTRUCTION FOR USE

volume and sound

volume adjustment

adjust the volume by using &+.

bass adjustment

1 press eq once during playback to select the bass

adjustment.

the current bass setting blinks.

2 press 2 repeatedly to select either:

No Bass: no bass enhancement

Bass 1: moderate bass enhancement

Bass 2: strong bass enhancement

the selected bass setting blinks.

3 press eq to conﬁrm your selection.

treble adjustment

1 press eq twice during playback to

select the treble adjustment.

the current treble setting blinks.

2 press 2 repeatedly to select either:

No Treble: no treble enhancement

Treble: treble enhancement

the selected treble setting blinks.

3 press eq to conﬁrm your selection.

basic functions

Bass 1 Bass 2

Treble

No Treble

−

selecting and searching on all discs

selecting a track during playback

brieﬂy press 5 or 6 once or several times to skip to

the beginning of the current, previous or subsequent

track.

playback continues with the selected track.

searching for a passage during playback

1 keep 5 or 6 pressed to ﬁnd a particular passage in backward or forward direction.

searching starts and playback continues at

a low volume. for cd audio tracks the search

speeds up after 2 seconds.

2 release the button at the desired passage.

normal playback continues.

note: during repeat, shuffle or shuffle all, searching is only possible

within the current track.

basic functions

selecting on mp3-cds

selecting an album during playback

brieﬂy press 1 or 2 once or several times to skip to

the ﬁrst track of the current, previous or subsequent

album.

the ﬁrst track of the selected album is played.

selecting a track during playback

1 keep 1 or 2 pressed to skip quickly to previous

or subsequent mp3 tracks.

skipping starts and speeds up after 5 seconds.

2 release the button at the desired track.

playback continues with the selected track.

note: to

skip from track to track at low speed,

use

5or6.

asic funct ions

1-5

playing tracks repeatedly or in random order – mode

1 press mode repeatedly during playback to select

either:

shufﬂe album (with mp3-cds only):

all tracks of the current album are played in

random order once.

shufﬂe all: all tracks of the disc are played in

random order once.

repeat shufﬂe album (with mp3-cds only):

all tracks of the current album are played

repeatedly in random order .

repeat shufﬂe all: all tracks of the disc are

played repeatedly in random order .

repeat: the current track is played repeatedly.

repeat album (with mp3-cds only):

all tracks of the current album are played

repeatedly.

repeat all: the entire disc is played repeatedly.

2 playback starts in the selected mode after 2 seconds.

3 to return to normal playback, press mode repeatedly until repeat and shufﬂe

disappear.

features

Audio Track 01

0:31

INSTRUCTION FOR USE

storing the last position played – resume

you can store the last position played. when restarting, playback will continue from

where you have stopped.

1 switch the slider to resume during playback to

activate resume.

resume is shown.

2 press 9 whenever you want to stop playback.

3 press 2; to resume playback.

playback continues from where you have stopped.

to deactivate resume, switch the slider to off.

resume disappears.

locking all buttons – hold

you can lock all buttons of the set. when you press

any key, no action will be executed then.

switch the slider to hold to activate hold.

resume is shown and Hold is displayed. all

buttons are locked. when pressing any key, Hold

is displayed.

to deactivate hold, switch the slider to off.

resume disappears.

features

Audio Track 06

3:56

Hold

esp and powersaving

with a conventional portable disc player the music

may stop while you are jogging, for example. the

electronic skip protection protects the psa against

loss of sound caused by light vibrations or shocks.

continuous playback is ensured. esp does not

protect the psa against damage caused by dropping!

press esp repeatedly during playback to select

either:

ESP on: ESP is shown and esp is switched on.

ESP , powersave is shown. esp and powersaving

are switched on, resulting in a longer battery

lifetime and a shorter skip protection.

ESP off ESP disappears. esp and powersaving

are switched off for cd audio tracks to achieve the highest sound quality.

beep

a beep conﬁrms that you have pressed a button or that the batteries are empty .

keep eq pressed for 2 seconds to switch beep either

on or off:

Beep is displayed: beep is switched on.

No beep is displayed: beep is switched off.

feat ures

Longer batter

No beep

remote control AY 3773 (supplied or optionally available)

controls

3.5 mm plug to connect the headphones

2 hold

locks all buttons

3 stop

stops playback and switches the set off

4 5 / 6

skips and searches forward/backward tracks

5 1 / 2

mp3-cd only: selects the next/previous tracks

6 2;

switches the set on, starts playback and

interrupts playback

7 volume

adjusts the volume

connecting the remote control

use only the AY 3773 remote control.

1 press 9 on the set twice to switch off the set.

2 ﬁrmly connect the remote control to p on the

set.

3 ﬁrmly connect the headphones to the plug on

the remote control.

4 on the remote control keep 2; pressed for

1second to switch on the set and to start

playback.

playback starts. the album number (mp3-cds only) and the track number are

displayed on the remote control´s display.

accesso ri es

1-6

5 adjust the volume and sound on the psa and your remote control.

note: replace the batteries as soon as

no batt

is displayed on the remote control´s

display.

carry strap pouch (AY 3287)

wear your digital audio player during sport activity by securing it to the supplied carry

strap pouch.

1 open the velcro enclosure on the back of the carry

strap pouch and slide the psa player inside. make

sure the headphone / remote socket is aligned to the

socket hole.

2 thread the strap.

3 position your hand and adjust the strap until the ﬁt is

snug and comfortable.

note: you can also use the supplied strap extension to

secure the player to your waist.

accesso r ies

INSTRUTION FOR USE

clip magnets

wear your remote control and secure your

headphone cord with these wearable magnets.

1 check the polarity of the 2 button magnets. insert

the big button magnet underneath your garment.

2 clip the small button magnet on your outer

garment. clip the remote control on top.

3 secure your headphone cord with the "butterﬂy"

magnet clip.

WARNING:

KEEP OUT OF REACH OF SMALL CHILDREN

TO AVOID CHOKING HAZARD.

KEEP THE MAGNETS A W

AY FROM CREDIT CARDS, T APES AND ANY ITEMS

WHICH MAYBE SENSITIVE TO THE MAGNETS.

USERS OF PACEMAKERS OR OTHER IMPLANTED DEVICES SHOULD CONSULT THEIR PHYSICIAN BEFORE USING MAGNETS OR DEVICES THAT MAY GENERA

TE ELECTRO-

MAGNETIC INTERFERENCE.

accessor ies

warning

under no circumstances should you try to repair the set yourself as this will

invalidate the warranty.

if a fault occurs, ﬁrst check the points listed, before taking the set for repair. if you

are unable to solve a problem by following these hints, consult your dealer or service

center.

problem solution

no power , playback insert the batteries correctly.

does not start replace the batteries.

connect the mains adapter securely .

Hold indication deactivate hold.

and/or no reaction disconnect the set from the power supply

to controls or take out the batteries for a few seconds.

no sound or press 2; to resume playback.

bad sound quality adjust the volume.

check and clean the connections.

keep this set away from active mobile phones or

strong magnetic ﬁelds.

pls insert cd insert a disc, label upwards.

or clean or replace the disc.

no audio file wait until the steamed up lens has cleared.

indication make sure you have inserted an audio disc

or an mp3-cd.

unfinalized cd make sure the inserted cdr or cdrw is

indication ﬁnalized.

troubleshooting

problem solution

music ﬁle is not played make sure that the ﬁle names of the

mp3 ﬁles end with .mp3

missing directories on make sure the total number of ﬁles

mp3-cd and albums on your mp3-cd does not

exceed 350.

only albums with mp3 ﬁles are shown.

the disc skips tracks clean or replace the disc.

make sure repeat, repeat album, shufﬂe are not

selected.

music skips play the music ﬁle on your computer. if the

or popping sound problem persists, encode the audio track

when playing an again and make a new cd-rom.

mp3 ﬁle

music is interrupted switch esp on.

and

Oops

indication

troubleshoot in g

Canada English: This digital apparatus does not exceed the Class B limits

for radio noise emissions from digital apparatus as set out in the Radio Interference Regulations of the Canadian Department of Communications.

The set complies with the FCC-Rules, Part 15 and with 21 CFR

1040.10. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

This device must accept any interference received, including

interference that may cause undesired operation.

1 - 7

All ICs and many other semiconductors 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 wristband with resistance. Keep components and tools at this potential.

f ATTENTION

Tous les IC et beaucoup d´autres semi-conducteurs sont sensibles aux décharges statiques (ESD). Leur longévite pourrait être considérablement écourtée par le fait qu´aucune précaution nést prise à leur manipulation. Lors de réparations, s´assurer de bien être relié au même potentiel que la masse de l´appareil et enfileer le bracelet serti d´une résistance de sécurité. Veiller à ce que les composants ainsi que les outils que l´on utilise soient également à ce potentiel.

d WARNUNG

Alle ICs und viele andere Halbleiter sind empfindlich gegenüber elektrostatischen Entladungen (ESD). Unsorgfältige Behandlung im Reparaturfall kann die Lebensdauer drastisch reduzieren. Sorgen Sie dafür, daß Sie im Reparaturfall über ein Pulsarmband mit Widerstand mit dem Massepotential des Gerätes verbunden sind. Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem Potential.

ñ WAARSCHUWING

Alle IC´s en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen vermindern. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal.

i AVVERTIMENTO

Tutti IC e parecchi semi-conduttori sono sensibili alle scariche statiche (ESD). La loro longevità potrebbe essere fortemente ridatta in caso di non osservazione della più grande cauzione alla loro manipolazione. Durante le riparationi occorre quindi essere collegato allo stesso potenziale che quello della massa delápparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale.

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

Le norme di sicurezza estigono che l´apparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambiago identici a quelli specificati. Componenty di sicurezza sono marcati con

Veiligheidsbepalingen vereisen, dat het apparaat in zijn oorspronkeliijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast. De Veiligheidsonderdelen zijn aangeduid met het symbool

s Varning !

Osynlig laserstrålning när apparaten är öppnad och spärren är urkopplad. Betrakta ej strålen.

∂ Advarsel !

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er ude af funktion. Undgå udsaettelse for stråling.

ß Varoitus !

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina näkymättömälle laserisäteilylle. Älä katso säteeseen !

"Pour votre sécurite, ces documents doivent être utilisés par des spécialistes agréés, seuls habilités à réparer votre appareil en panne".

ESD

SAFETY

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Originalzustand des Gerätes darf nicht verändert werden. Für Reparaturen sind Originalersatzteile zu verwenden. Sicherheitsbauteile sind durch das Symbol markiert.

Les normes de sécurité exigent que l`appareil soit remis à l`état d`origine et que soient utilisées les pièces de rechange identiques à celles spécifiées. Les composants de sécurité sont marqués

CLASS 1

LASER PRODUCT

DANGER: Invisible laser radiation when open.

After servicing and before returning the set to customer perform a leakage current measurement test from all exposed metal parts to earth ground, to assure no shock hazard exists. The leakage current must not exceed 0.5mA.

AVOID DIRECT EXPOSURE TO BEAM.

AVAILABLE ESD PROTECTION EQUIPMENT :

anti-static table mat large 1200x650x1.25mm 4822 466 10953 small 600x650x1.25mm 4822 466 10958 anti-static wristband 4822 395 10223 connection box (3 press stud connections, 1MΩ)

4822 320 11307

extendible cable (2m, 2MΩ, to connect wristband to connection box) 4822 320 11305 connecting cable (3m, 2MΩ, to connect table mat to connection box) 4822 320 11306 earth cable (1MΩ, to connect any product to mat or to connection box) 4822 320 11308 KIT ESD3 (combining all 6 prior products - small table mat) 4822 310 10671 wristband tester 4822 344 13999

SAFETY & WARNINGS

2 -1

SERVICE HINTS

REPAIR POSITION COPPERSIDE

To get access to the copperside of the printed board assembly proceed as follows:

1.Remove screws 3pcs (in the CD-door) Remove screws 1pc (in the Battery-door)

2.Lift the bottom-cabinet

3.Supply the unit via external DC-socket

4.Take care that the door switch is closed during measurements

REPAIR POSITION COMPONENTSIDE

To get access to the componentside of the printed board assembly proceed as follows:

1.Remove screws 3pcs (in the CD-door) Remove screws 1pc (in the Battery-door)

2.Lift the bottom-cabinet

3.Remove screws 3pcs(on the PCB board)

4.Take care that the door switch is closed during measurements

DISMANTLING THE CD-DOOR

To dismantle the CD-door proceed as follows:

1.Dismantle bottom board

2.Remove screw 3pcs as indicated in the picture above

3.Lift the PCB board, disconnect membrance and 2 spring

4.Remove screw 9pcs as indicated in the picture above

5.Lift the cabinet middle and chassis carefully

+ 21 hidden pages

Philips ACT-300 Service manual

TABLE OF CONTENTS

TECHNICAL SPECIFICATION

CONNECTIONS AND CONTROLS

INSTRUCTION FOR USE

SAFETY & WARNINGS

SERVICE HINTS