Philips ACT-500 Service manual

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

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

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

Instruction For Use .....................................................1-2..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..3-8

Start-up procedure.............................................................3-9

Service Test Program......................................................3-10

Service Test Program-flow chart .....................................3-10

Blockdiagram...................................................................3-12

Circuit diagrams

Control/Supply part........................................................4-1

Drive/EPS part...............................................................4-2

Audio part ....................................................................4-3

Layout diagarms

Copper side view ...........................................................4-4

Component side view ....................................................4-5

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

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

Electrical partslist .......................................................6-1..6-2

Published by LX 0334 Service Audio Printed in The Netherlands Subject to modification

Portable CD Player

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.

ACT500

all versions

psa[cd

CLASS 1

LASER PRODUCT

1-1

TECHNICAL SPECIFICATION

General

Dimensions (Dia x H) : 146 x 24 mm Weight without batteries : 220g

Shock resistance

+X/-X direction : ≥2.5g +Y/-Y direction : ≥2.5g +Z/-Z direction : ≥2.0g

Power supply modes

Battery lifetime

Battery level detection

Measurement setup CD

Use Audio Signal disc SBC429 4822 397 30184

Current consumption

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

Output power (THD=10%)

/17 version only : 8mW (+1/-3dB)

all other versions : 4mW (+2/-2dB) Frequency response (1mW) : 100Hz-20kHz within 6dB S/N ratio (unw.) : ≥80dB (82dB typ.) S/N ratio (A-wght) : ≥82dB (84dB typ.) THD+N CD (1kHz, 1mW) : ≤1% (0.2% typ.) Crosstalk (1kHz, w/o load) : ≤-24dB (-44dB typ.) Channel unbalance (-40dB) : ≤5dB Volume attenuation (1kHz) : >60dB

Dynamic Bass Boost DBB

Battery empty

Difference btw.battery level 1 and battery empty

Difference btw.battery level 2 and battery empty

Difference btw.battery level 3 and battery empty

1.8V

+100/-50mV

battery empty level +

0.3V ± 100mV

battery empty level +

0.45V ± 150mV

battery empty level +

0.75V ± 100mV

EPYTYRETTAB

at PSM in

lim

at PSM in

typ

seirettabyramirP

Rechargable batteries AY3 363

AAAx2

at ESP=on in at ESP=on in

≥

10 h

12h

≥

8 h

10h

≥

3.5 h

≥

5 h

lim

typ

Feature Overview

ACCESSORIES

0dB

2dB

0dB

2dB

E CD PLAYER LBATROPROF

SEIROSSECCA

T500CA

C00/ 10/ 50/ 11/71/

00/0713YA rotpadACD/CA

20/0713YA rotpadACD/CA

7E7/

SBC HJ050

enohpdaeHoeretS

Battery ALK 1.5V LR03PL

XXX

3140 118 33630

3140 118 32020

9082 100 02179

9082 100 90013

AY3781

Remote control

3140 118 51511

Waist Belt

3140 113 10581

Butterfly-NIKE

3140 118 72161

GR1-AX Mains Plug Adaptor

3139 128 73011

AY3293

Carry Pack

3140 113 10641

AY3363

Battery-NIMH-AAA

3103 308 84721

EDOMYLPPUS

tekcosNI-CD

seirettabyramirP

seirettabRechargable

egnaregatloV

V0.6-5.2

V6.3-8.1

esnopserycneuqerF

0dB

± 2dB

DBB 1

EGATSBBD

zH36 zHk1 zHk01

+8dB

± 2dB

0dB

± 2dB

PORTABLE CD PLAYERFO

SERUTAEF

WM/MFRENUT

005TA

)snoisrevlla(

/--

LEVELNOITCETED seirettabyramirP

PLAY

CHARGE

JUMP

Stand- by (excl.recharge)

EDOMNOITAREPO

Low pass filterDUT S/N and distortion meter

22kHz 13th order

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

Level meter

i.e. Sennheiser UPM550

Power save

80mA typ.

150mA

400mA typ. 400mA typ.

90mA typ. <1mA

with FF-filter

120mA typ. 80mA typ. 120mA typ.

150mA n/a n/a

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

NOP=SE

Power save

YTILIBITAPMOCELBATIRWER-DC

N CDDA / MP3OITCETORPPIKSCINORTCELE

EZISMARDPSE

NOITCNUFEMUSER/DLOH

SEGATSBBD

KCABDEEFCITSUOCA

YROMEMMARGORP

HMiN/dCiNNOITCNUFEGRAHCER

DERAPERPLORTNOCETOMERDROC

●

s / 90

● / ●

●

tibM32

-/-

●

NOP=SE

1-2

of f/r esu me/ hol d

−

INSTRUCTION FOR UES

english controls

supplied accessories

–1 x headphones, HJ050 – 1 x remote control, AY3781 – 1 x AC/DC adapter, AY3170 – 2 x rechargeable batteries, AY3363 – 1 x hand strap / waist pack, AY3293

controls

1 mode ...................selects the different playing possibilities: shufﬂe,

2 eq .........................switches the bass enhancement on and off. this

3 esp ......................toggle to select between the battery powersave mode

4 p ...........................3.5 mm headphone socket, socket to connect the

6 5 .........................skips and searches cd tracks backwards

7 indicator.............lights up : red (battery low / power down) ,

8 2; ........................switches the player on, starts or pauses cd play

9 9 ...........................stops cd play, switches the player off

0 6 .........................skips and searches cd tracks forwards

! DC ........................socket for external power supply

( see ﬁgure 1 )

shufﬂe repeat, repeat and

button also switches acoustic feedback (the beep) on/off when it is pressed for more than 2 seconds

and electronic skip protection (esp). esp ensures continuous cd playback regardless of vibrations and shocks

player to another audio input of an additional appliance, remote control socket

+/ −

....................... adjusts the volume

green (power up), orange (pause mode)

QUICK START MISE EN SERVICE RAPIDE

off/resume/hold

!!!

1-3

INSTRUCTION FOR USE

controls / accessories

controls

@ off.........................switches resume and hold off

# .................opens the cd lids

remote control

1 p ...........................3.5 mm headphone plug to connect to headphones

2 hold .....................locks all buttons

3 stop......................stops playback and switches the set off

6 2; ........................switches the set on, starts playback and interrupts

connecting the remote control

1 press 9 on the set twice to switch off the

2 ﬁrmly connect the remote control to p on

3 ﬁrmly connect the headphones to the plug

4 on the remote control keep 2; pressed for

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

( see ﬁgure 1 )

resume................stores the last position of a cd track played

hold .....................locks all buttons

AY3781 ( see ﬁgure 2 )

socket

5 / 6

..................skips and searches forward / backward tracks

+/ −

........................adjusts the volume

playback

use only the AY 3781 remote control.

set.

the set.

on the remote control.

1 second to switch on the set and to start playback.

accessories / power supply

hand strap / waist pack AY3293

wear your cd player during sport activity by securing it to the supplied hand strap / waist pack.

1 open the strap enclosure on the back of the

hand strap / waist pack and slide the cd 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.

this set complies with the radio interference requirements of the

European Community.

the model and serial numbers are located inside the cd door.

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.

the small button magnet on your outer

2 clip

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 AWAY FROM CREDIT CARDS, TAPES AND

ANY ITEMS, WHICH MAY BE SENSITIVE TO THE MAGNETS.

–USERS OF PACEMAKERS OR OTHER IMPLANTED DEVICES SHOULD

CONSULT THEIR PHYSICIAN BEFORE USING MAGNETS OR DEVICES THAT MAY GENERATE ELECTRO-MAGNETIC INTERFERENCE.

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

batteries (supplied or optionally available)

you can use the following batteries with this cd-player:

• alkaline batteries type AAA (LR03, UM4) or rechargeable ECO-PLUS

NiMH battery.

notes:

old and new or different types of batteries should not be combined. remove batteries if they are empty or if the player is not going to be used for a long time.

inserting batteries

1 push to open the cd door

2 open the cd compartment and insert 2 x

batteries.

AAA

battery indication

the approximate power level of your batteries is shown in the display.(on remote control)

battery full

battery two-thirds full battery one-third full

battery dead or empty. when the batteries are dead or empty, the symbol ﬂashes,

is displayed, and the beep tone sounds repeatedly. indicator lights up orange and beeps brieﬂy. indicator then turns red before player switches off.

average playing time of batteries under normal conditions

battery type esp + power save

normal AAA 3 hours alkaline AAA 12 hours rechargeable ECO-PLUS NiMH battery 10 hours

batteries contain chemical substances, so they should be disposed of properly.

1-4

INSTRUCTION FOR USE

power supply / general information

ECO-PLUS NiMH battery information (for versions supplied with the rechargeable ECO-PLUS NiMH battery AY 3363)

recharging works only on players supplied with the rechargeable ECO-PLUS NiMH battery AY 3363.

recharging the ECO-PLUS NiMH battery on board

1 insert the rechargeable ECO-PLUS NiMH battery AY 3363.

2 connect the mains adapter to the DC socket of the player and then to

the wall socket.

y is pulsing.

• recharging stops after a maximum of

7 hours, or when you start playback.

3 when the battery is fully recharged,

appears in the display.

notes: – it is normal for the batteries to become warm during recharging. – if the batteries become too warm, recharging will be interrupted for

approximately 30 minutes and is displayed. – to ensure proper recharging on board, take care that contacts are clean. – use only the ECO-PLUS NiMH battery AY 3363.

handling instructions

• recharging already charged or half-charged batteries will shorten their

lifetime. we therefore recommend that you let the rechargeable ECO-PLUS NiMH battery run till it is completely empty before you recharge it.

• to avoid a short circuit, do not let the battery touch any metal object.

• if the battery becomes empty soon after recharging, then either its

contacts are dirty or it has reached the end of its lifetime.

general information / cd play

cd player and cd handling

• do not touch the lens A of the cd player.

• do not expose the unit, batteries or cds to humidity, rain, sand or excessive heat (caused by heating equipment or direct sunlight).

• you can clean the cd player with a soft, slightly dampened, lint-free cloth. do not use any cleaning agents as they may have a corrosive effect.

• to clean the cd, wipe it in a straight line from the center toward the edge using a soft, lint-free cloth. a cleaning agent may damage the disc! never write on a cd or attach a sticker to it.

•the lens may cloud over when the unit is moved suddenly from cold to warm surroundings. playing a cd is not possible then. leave the cd player in a warm environment until the moisture has evaporated.

• active mobile phones in the vicinity of the cd player may cause malfunctions.

• avoid dropping the unit as this may cause damage.

mains adapter (supplied or optionally available)

use only the AY 3170 power adapter supplied with your product (4.5 V / 300 mA direct current, positive pole to the centre pin). any other product may damage the player.

1 make sure the local voltage corresponds to

the adapter’s voltage.

2 connect the adapter to the DC socket of the

player and to the wall socket.

note:

always disconnect the adapter when you are not using it.

environmental information

• all redundant packing material has been omitted. we have done our utmost to make the packaging easily separable into two mono materials: cardboard and polyethylene.

• your set consists of materials which can be recycled if disassembled by a specialized company. please observe the local regulations regarding the disposal of packing materials, exhausted batteries and old equipment.

headphones HJ050

• connect the supplied headphones to the p socket of the player.

note: p can also be used for connecting this set to your hiﬁi system to adjust the sound and volume, use the controls on the connected audio equipment and on the cd player.

take care when using headphones hearing safety: listen at a moderate volume.

using headphones at high volume can impair your hearing. trafﬁc safety: do not use headphones while driving or cycling as you

may cause an accident.

in-car use (connections supplied or optionally available)

only use the AY 3545 or AY 3548 car voltage converter (4.5 V DC, positive pole to the centre pin) and the AY 3501 car cassette adapter. any other product may damage the set.

1 put the set on a horizontal, vibration-free and

stable surface. make sure it is in a safe place, where the set is neither a danger nor an obstacle to the driver and the passengers.

2 plug the voltage converter into the cigarette

lighter socket (only for 12 V car battery, negative grounding), then connect the wired end with 4.5V DC input socket on the set.

3 if necessary, clean the cigarette lighter socket

to obtain a good electrical contact.

4 turn down the volume and connect the cassette adapter plug to p on

the set.

5 carefully insert the cassette adapter into the car radio’s cassette

compartment.

6 make sure the cord does not hinder your driving.

7 decrease the volume on the set if necessary. start playback on the

set and adjust the sound with the car radio controls.

• always remove the voltage converter from the cigarette lighter socket

when the set is not in use.

notes: if your car radio has a LINE IN socket, it is better to use it for the car radio connection instead of the cassette adapter. connect the signal lead to this LINE IN socket and to p on the set.

12 V DC

4,5 V DC

1-5

cd play / features

playing a cd

this cd-player can play all kinds of audio discs such as cd-recordables and cd-rewritables. do not try to play a cd-rom, CDi, VCD, DVD or computer cd.

push the slider to open the player.

2 insert

an audio cd, printed side up, by

pressing the cd onto the hub.

3 close

the player by pressing the lid down.

4 press 2; to switch the player on and start

playback.

y the current track number and elapsed

playing time are displayed. indicator lights up green.

• you can pause playback by pressing 2;.

y the time at which playback was paused

starts

ﬂashing. indicator turns orange and

ﬂashes.

• you can

continue playback by pressing

again.

5 press 9 to stop playback.

y the total number of tracks and the total

playing time of the cd are displayed.

6 press 9 again

to switch the player off. indicator

lights up red and gradually turns off.

• to remove

the cd, hold it by its edge and press

the hub gently while lifting the cd.

note: if there is no activity, the set will automatically

switch off after a while to save

energy.

playback information

• if

a cd-recordable (CD-R) or a cd-rewritable

(CD-RW) is not recorded properly, is displayed, indicating that the cd has not been ﬁnalized.

in that case, use FINALIZE on your

cd recorder to complete the recording.

• when

playing a cd-rewritable (CD-RW), please note that it takes 3–15 seconds after pressing 2; for sound reproduction to start.

• playback will stop if you open the cd lid.

• while the cd is read, 1 -:- ﬂashes in the display.

volume

and bass

volume adjustment

• adjust

the volume by using

+/ −(

vol).

bass adjustment

• press eq (on the set only) to switch the bass

enhancement

on or off

y dbb is shown if the bass enhancement is

activated.

features

selecting a track and searching

selecting a track during playback

• brieﬂy press 5 or 6 once or several times to

skip to the current, previous or next track. y playback continues with the selected track,

and the track’s number is displayed.

selecting

a track when playback is stopped

1 brieﬂy press 5 or 6 once or several times to

select the desired track. the track number is displayed.

2 press 2; to start cd play.

y playback starts with the selected track.

searching for a passage during playback

1 keep 5 or 6 pressed to ﬁnd a particular passage in

a backward or forward direction. y searching starts while playback continues at low

volume. after 2 seconds the search speeds up.

2 release the button when you reach the desired passage.

y playback continues from this position.

notes: – if the player is in mode (see mode chapter),

searching

is not possible.

– in shufﬂe, shufﬂe repeat or repeat mode (see mode chapter),

searching is only possible within the particular track.

selecting different playing possibilities-mode

is possible to play tracks in random order, to repeat a single track or

the entire cd, and to play the ﬁrst few seconds of each track.

1 press mode during

playback as often as required in order to activate one of the following ‘modes’. the active mode is shown in the

display.

y shufﬂe : all

tracks of the cd are played in random order until all of them have been played once.

y shufﬂe repeat: all tracks of the cd are

played

repeatedly in random order.

yrepeat: the

entire cd is played repeatedly.

y : the ﬁrst 10 seconds of each of the

remaining tracks are played in sequence.

2 playback starts in the chosen mode after 2

seconds.

• to return to normal playback, press mode repeatedly until the display

shows no active modes.

INSTRUCTION FOR USE

1-6

INSTRUTION FOR USE

features

esp / power save mode

with a conventional portable cd-player you might have experienced that the music stopped e.g. when you were jogging. the electronic skip protection (esp) prevents loss of sound caused by light vibrations and shocks. continuous playback is ensured. however esp does not prevent playback interruptions during vigorous running. it also does not protect the unit against any damage caused by dropping! on this set powersaving is default on. the power save mode helps to extend battery lifetime for longer playback.

• press esp (on the set only) to enter power save

mode.

ypowersave is displayed.

• press esp again to return to esp mode.

ypowersave disappears.

esp

➟ power

save

➟esp

troubleshooting

warning:

as this will invalidate the guarantee. if a fault occurs, ﬁrst check the points listed, before taking the unit for repair. if you are unable to solve a proble by following these hints, consult your dealer or service centre.

the cd player has no power, or playback does not start

• check that your batteries are not dead or empty, that they are inserted

• your adapter connection may be loose. connect it securely.

• for in-car use, check that the car ignition is on. also check player’s

the indication is displayed

• check that the cd is clean and correctly inserted (label-side upward).

• if your lens has steamed up, wait a few minutes for this to clear.

the indication is displayed

• CD-RW (CD-R) was not recorded properly. use FINALIZE on your cd-

the indication is on and/or there is no reaction to controls

• if hold is activated, then deactivate it.

• electrostatic discharge. disconnect power or remove batteries for a few

the cd skips tracks

• the cd is damaged or dirty. replace or clean the cd.

•resume,

under no circumstances should you try to repair the set yourself

correctly, that the contact pins are clean.

batteries.

recorder.

seconds.

shufﬂe is active. switch off whichever is on.

resume and hold

you can interrupt playback and continue (even after an

extended period of time) from the position where playback stopped (resume) and you can lock all buttons of the set so that no action will be executed these functions.

resume

1 switch

2 press 9 whenever

3 press 2; whenever you want to resume playback.

• to deactivate resume, switch the slider to off.

hold – locking all buttons

you can lock the buttons of the set by switching the slider to hold. now, when example, when transporting the player in a bag. with hold activated, you can avoid accidental activation of other functions.

1 switch

2 to deactivate hold, switch the slider to off. (or

(hold). use the off–resume–hold slider for

– continuing from where you have stopped

the slider to resume during playback to activate resume. y resume is shown.

you want to stop playback.

y resume is shown and playback continues

from where

y resume goes

a key is pressed, no action will be executed. this is of use, for

the slider to hold (or switch hold on the remote control) to activate hold. y all buttons are locked is shown when

you press and ﬂashes. if the set is switched off, will be shown only when 2; is pressed.

switch hold on the remote control)

note:

if you deactivate hold by switching the slider to resume, you will

be activating the resume function.

you have stopped.

off.

any button. indicator turns red

troubleshooting

no sound or bad sound quality.

• pause might

• loose, wrong or dirty connections. check and clean connections.

• volume might not be appropriately adjusted. adjust the volume.

• strong keep away from active mobile phones.

• for in-car use, check that the cassette adapter is inserted correctly, that the autoreverse to change), and that the cigarette lighter socket is clean. allow time for temperature change.

be active. press

magnetic ﬁelds. check player’s position and connections. also

car cassette player’s playback direction is correct (press

2;.

IMPORTANT

modiﬁcations not authorized by the manufacturer may void users

authority to operate this device.

1 - 7

SAFETY & WARNINGS

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.

ESD

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.

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.

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

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.

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

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

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.

SAFETY

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.

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

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

DANGER: Invisible laser radiation when open. AVOID DIRECT EXPOSURE TO BEAM.

s Varning !

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

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.

CLASS 1

LASER PRODUCT

∂ Advarsel !

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

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

ß Varoitus !

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

2 -1

SERVICE HINTS

REPAIR POSITION COPPERSIDE

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

1.Remove bottom screws 2pcs (under the plate-decoration) Remove screws 4pcs (in the CD-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 compomentside of the printed board assembly proceed as follows:

1.Remove bottom screws 2pcs (under the plate-decoration) Remove screws 4pcs (in the CD-door)

2.Lift the bottom-cabinet

3.Remove screws 2pcs(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 2pcs as indicated in the picture above

3.Disconnect the membrance keyboard

4.Dismantle the CD-door carefully

+ 21 hidden pages

Philips ACT-500 Service manual

TABLE OF CONTENTS

TECHNICAL SPECIFICATION

INSTRUCTION FOR UES

SAFETY & WARNINGS

SERVICE HINTS