Philips AZ-1538 Service manual

CD Sound Machine

AZ 1538

all versions

Handling Chip Components and Safety ..........................1 - 1

Technical Specification & Service tools...........................2 - 1

Service Measurement......................................................2 - 2

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

Instructions for use.................................................3 - 3..3 - 4

Tuner adjustment.............................................................3 - 5

Abbreviations and Pin-description of CD ICs ..................4 - 1

Disassembly Diagram......................................................4 - 2

Block Diagram .................................................................5 - 1

Wiring Diagram................................................................5 - 2

Combi Board - Circuit Diagram

Front part.................................................................6 - 1

Tuner part................................................................7 - 1

Combi Board - Circuit Diagram

CD part 1 ................................................................8 - 1

CD part 2 ................................................................8 - 2

Audio/supply part.....................................................9 - 1

Combi Board - Layout Diagram

Layout diagram (copper side)................................10 - 1

Layout diagram (component side).........................10 - 2

MP3CD2002 Board

Circuit diagram......................................................11 - 1

Layout diagram......................................................11 - 2

Exploded view - cabinet.................................................12 - 1

Mechanical partslist.......................................................12 - 1

Electrical partslist .............................................13 - 1 .. 13 - 8

Published by LX 0227 Service Audio Printed in The Netherlands Subject to modification



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.

HANDLING CHIP COMPONENTS

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 Puls- armband 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 Original- ersatzteile 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.

1 - 1

GENERAL

Mains voltage -/00C : 230 V

-/01 : 120 / 230 V

Mains frequency -/00C : 50 Hz

-/01 : 50 / 60 Hz

Battery main set : 9 V (R14 x 6)

remote : 3V (R6 x 2) Power consumption : < 30 W (max.) Dimension (W x H x D) : 405 x 162 x 232 mm Weight : 2.5 Kg

AMPLIFIER

Output power mains : 2 x 1 W

battery : 2 x 0.8 W Speaker impedance : 2 x 8 oh m Frequency response : 60 Hz - 2 0 kHz (±3dB)

TUNER - FM SECTION

Tuning range : 87.5 - 108 MHz IF frequency : 10.7 MHz ± 0.02 MHz Sensitivity : 20 dBf at 26dB S/N Selectivity : 24 dB at 300kHz IF rejection : 85 dB Image rejection : 24 dB

SPECIFICATIONS

TUNER - AM SECTION

Tuning range MW : 531 - 1602 kHz

LW : 153 - 279 kHz IF frequency : 450 kHz ± 1 kHz Sensitivity MW : 3200 µV/m at 26dB S/N

LW : 5500 µV/m at 26dB S/N Selectivity MW : 22 dB

LW : 29 dB IF rejection MW : 64 dB

LW : 60 dB Image rejection MW : 32 dB

LW : 38 dB

COMPACT DISC

Frequency response : 100 Hz - 10 kHz ± 2dB S/N ratio : 60 dB Channel difference 1 kHz : 2 dB Channel crosstalk 1 kHz : 40 dB Laser wavelength : 780 ± 20 nm Laser light power : < 0.5 mW

2 - 1

SERVICE TOOLS

Audio signal disc SBC 429.......................................................................4822 397 30184

Playability test disc SBC 444

...................................................................4822 397 30245

Test disc 5 (disc without errors ) + Test disc 5A (disc with dropout errors, black spots and fingerprints)

SBC 426/426A.....................................................................4822 397 30096

Burn in test disc (65 min. 1kHz signal at -30 dB level without “pause”)

.....4822 397 30155

anti-static table mat

large 1200x650x1.25mm  4822 466 10953

small 600x650x1.25m 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

AVAILABLE ESD PROTECTION EQUIPMENT

TECHNICAL SPECIFICATIONS

2 - 2

SERVICE MEASUREMENT

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

Tuner SW

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).

Ri=50Ω

Aerial replacement

Capacitor

R=50Ω

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.

RF Generator

e.g. PM5326

Ri=50Ω

Low pass filter 22kHz

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

S/N and distortion meter

e.g. Sound Technology ST1700B

DUT

Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3) L.P.F. = 13

order filter 4822 395 30204

3 - 1

CONNECTIONS AND CONTROLS

VOLUME

PRESET

TUNING

REPEAT

SHUFFLE

9564321 87

0# !@

867

435

PROGRAM

TRA

MP3

ALBUM

TRA

3 - 2

ACCESSORIES

1 x AC mains lead

1 x Remote Control

TOP AND FRONT PANEL (See

)

LIFT TO OPEN - lift here to open MP3-CD door.

2 POWER

OFF/TUNER/CD

selects CD/TUNER

function and also the power off switch (POWER

OFF)

3 DBB (Dynamic Bass Boost) -

activates a more vivid

bass response

4 CD MODE/BAND

- selects different play modes: e.g. REPEAT or

SHUFFLE (random) order

- selects waveband

5 0-9: - digit panel

MP3/CD: track selection and direct playback

TUNER: selecting a preset station

6 Display - shows the status of the set.

7 PROG

MP3/CD: programs tracks and reviews the

program;

TUNER

programs preset radio stations.

8 2; - starts or pauses

MP3/CD

playback.

9 9 - stop

MP3/CD

playback;

- erases a

MP3/CD

program.

Remote Sensor - infrared sensor for remote

control!ALBUM (+, -)

MP3 only:

selects previous/next album

TUNER:

selects the previous /next preset station

@ SEARCH , §

MP3/CD: - searches backward / forward within

a track;

- skips to the beginning of a current

track/ previous/ later track

TUNER:

- (down, up) tunes to radio stations.

VOLUME 3 , 4 -

to adjust volume level up/down

BACK PANEL

Telescopic aerial - improves FM reception.

% p

- 3.5 mm stereo headphone socket.

Note: The speakers will be muted when headphones

are connected to the set.

AC MAINS - inlet for mains lead.

& Battery compartment - for 6 batteries, type R-14,

UM2 or C-cells.

REMOTE CONTROL

1 VOLUME 3 , 4 - adjusts volume level.(up, down)

2 SHUFFLE - plays all CD tracks in random order.

3 2;

- starts CD playback;

- pauses CD playback

4 SEARCH 5 , 6 - searches backwards/

forwards within a track.

5 PRESET +,- (up, down)

TUNER:

selects a preset radio station

MP3 only: selects previous/next album

6 TUNING , §

(down, up) - tunes to tuner stations.

7 9 - stop MP3/CD playback;

- erases a MP3/CD program.

8 ¡ , ™ - skips to the beginning of a current track

previous/ subsequent track.

9 REPEAT - repeats a track /program/ entire CD.

CAUTION

Use of controls or adjustments or performance

of procedures other than herein may result in

hazardous radiation exposure or other unsafe

operation.

POWER SUPPLY

Whenever convenient, use the AC power supply to

conserve battery life. Make sure you remove the

power plug from the set and wall outlet before

inserting batteries.

Batteries (not included)

• Insert 6 batteries, type R-14, UM-2 or C-cells,

(preferably alkaline) with the correct polarity. (See

)

• Remote control

Insert 2 batteries, type AAA, R03 or UM4

(preferably alkaline). (See

)

IMPORTANT!

•

Incorrect use of batteries can cause electrolyte

leakage and will corrode the compartment or cause

the batteries to burst.

•

Do not mix battery types:

e.g. alkaline with carbon

zinc. Only use batteries of the same type for the set.

•When inserting new batteries, do not try to mix old

batteries with the new ones.

•

Batteries contain chemical substances, so

they should be disposed of properly.

Using AC Power

Check if the AC power supply, as shown on the

type plate located on the bottom of the set,

corresponds to your local power supply. If it does

not, consult your dealer or service centre.

Connect the mains lead to the wall socket.

To disconnect the mains supply, unplug the set

from the wall socket.

The type plate is located on the bottom of the set.

This set complies with the radio interference

requirements of the European Community.

For users in the U.K., please follow the boxed

instructions ‘Important notes…’ on this sheet.

BASIC FUNCTIONS

Switching on and off and selecting function

To switch on, adjust the POWER OFF/TUNER/CD

to select: CD or TUNER function, and operate the

respective function controls.

• On and then tu or Cd are shown briefly when you

switch on to the selected function.

To switch off, adjust the POWER OFF/TUNER/CD

to select POWER

OFF.

Note :

The DBB setting, tuner presets and the volume (up

to volume level 20) will be retained in the set’s memory.

Adjusting volume and sound (See

)

Adjust the volume with the VOLUME controls.

™ Display shows the volume level

UoL

and a

number from 0-32.

Press DBB once or more to select dynamic bass

boost on or off.

DIGITAL TUNER

Tuning to radio stations

Adjust the POWER OFF/TUNER/CD to TUNER.

™ tu is displayed briefly and then the radio

station frequency, waveband and, if programmed,

a preset number are shown. (See

)

Press CD MODE/BAND once or more to select

your waveband.

Press and hold SEARCH

or §

until the

frequency in the display starts running.

™ The radio automatically tunes to a station of

sufficient reception. Display shows Srch

during automatic tuning.

Repeat step 3 if necessary until you find the

desired station.

To tune to a weak station, press

or §

briefly

and repeatedly until you have found optimal reception.

To improve radio reception:-

• For

, extend, incline and turn the telescopic

aerial. Reduce its length if the signal is too strong.

• For

MW (AM)/LW

, the set uses a built-in aerial.

Direct this aerial by turning the whole set.

Programming radio stations

You can store up to a total of 40 radio stations in the

memory, manually or automatically (Autostore).

Manual programming

Tune to your desired station (see Tuning to radio

stations).2.Press PROG to activate programming.

™ Display: Pr -- and PROGRAM flashes.

Use the digit panel on the set to key in a number,

1-40, to select a preset station. E.g. press 1,1 if you

want to store your station as preset 11.(See

)

Note :

If a higher preset number, 41-49 is selected, the

display will show noPr and tune to Pr 4. Presets

exceeding 50, e.g. 67 will tune you to presets 6 and 7.

• Remote control: Press

PRESET + / -

once or

more to select a preset station.

•

Set: press ALBUM (

+ / -

)

Press PROG to confirm.

English

CONTROL/POWER SUPPLY POWER SUPPLY DIGITAL TUNER

CONNECTIONS AND CONTROLS

3 - 3

Repeat steps 1-4 to store other stations.

Note :

You can erase a preset station by storing

another frequency in its place.

Autostore

Autostore automatically starts programming radio

stations from preset 1. Available stations are

programmed in order of waveband reception strength:

FM, followed by MW (AM). Any previous presets e.g.

manually programmed will be erased.

•Press PROG for 4 seconds or more to activate

autostore programming.

™ The display shows Auto,

PROG

blinks,

followed by the radio station details when

stored.

After all stations are stored, the first preset station

will then automatically play.

To listen to a preset station

•

Set: press ALBUM (

+ / -

)

• Direct Easy Access: use the digit panel on the set

to key in a number, 1-40, to select a preset station.

• Remote control: optionally, press

PRESET + ,-

select your preset station.

MP3-CD PLAYER

IMPORTANT SPECIFICATIONS

Supported formats:

• Disc format ISO9660, Joliet and multi-session CDs.

Use ISO9660 disc format when burning CD-ROM.

• MP3 music fomats.

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

bit rate.

• 650Mb and 700Mb CD-R and CD-RWs.

• Directory nesting up to a maximum of 8 levels

(max. 64 characters).

General information

The music compression technology MP3 (MPEG Audio

Layer 3) reduces the original digital audio data by a

factor up to 10 without losing significant sound quali-

ty. This allows you to record up to 10 hours of CD-like

quality music on a single CD-ROM.

How to get MP3 music

Either download legal MP3 music from the internet or

convert your audio CD into MP3 format with any MP3

encoder software, and then record onto a CD-R(W).

• To achieve a good sound quality a bit rate of at

least 128kbps is recommended for MP3 files.

When burning the MP3-CD

• Make sure the file names of the MP3 files end with

.mp3

• Use a writing software capable of recording MP3

track titles (files) in numerical and alphabetical

order. For details on using the software, refer to

the operating instructions of the software.

• Some encoder software offer an option to protect

music files, i.e. the files can only be played on the

computer which created them. If you burn such

files on a CD-ROM, you cannot play them on this

unit. Make sure to deactivate the protection option

in the encoder software before creating the music

files. In this case you are responsible for adherence

to all local or international copyrights.

How to organize MP3 files

You can store up to a maximum number of 35 albums

and 400 titles on one MP3-CD, depending on the song

file sizes.

Albums and titles are alphabetically sorted.

• MP3-CD/ CD albums and titles are shown as num-

bers in the display.

IMPORTANT!

This set does not play/support the following:

• Empty albums: an empty album is an album that

does not contain MP3 files, and will not be shown

in the display.

• Non-supported file formats are skipped. This

means that e.g.: Word documents .doc or MP3

files with extension .dlf are ignored and will not be

played.

• Playlist Files e.g. .m3u, .pls of WMA, AAC,

Winamp, Sonic, RealJukebox, MS Mediaplayer 7.0,

MusicMatch.

• Recordings created on e.g. PacketWriting and

Package Writing.

MP3/CD display indications

™ rEAd when reading disc contents;

™ nO dISc if no CD inserted/ CD dirty,

incorrectly inserted or damaged.

™ Cd throughout CD operation

™ MP3,

TRACK, ALBUM throughout MP3-CD operation

™ In CD stop mode: total track number and total

playback time

™ If MP3-CD, the album number is also shown.

™ nF dISc if you have inserted a non-finalized

CD-R(W).

™ nO ALb if no albums are available.

Playing disc

This set plays Audio Discs including CDR(W)s, and

mp3 CD-ROMs.

Adjust the POWER OFF/TUNER/CD to CD.2.Insert a CD with the printed side facing up and

close the door.

Note:

MP3-CDs may more than take 10 seconds to

read.

Press

to start playback.

To pause playback press

. Press

again to

resume play.

™ Display: elapsed playtime flashes during pause.

To stop playback, press

Note : CD play will also stop when:

- the CD door is opened

- the CD has reached the end

- you select TUNER/POWER

OFF

Selecting a different track

There are 2 ways:

Direct Easy Access:

• Key in the number of the track using the digit

keyboard on the set.

Note: If you key in a number larger than the maximum

track number, your input is ignored and the current

track continues playing.

•Press SEARCH

once or repeatedly to

select your track.

•To skip tracks rapidly press and hold SEARCH

MP3-CD mode only:

First press ALBUM, PRESET

once or more to

find your album.

Finding a passage within a track

Press and hold SEARCH

or §

– The MP3/CD is played at high speed.

When you recognize the passage you want,

release

or §

to resume normal playback.

Note:

Searching is only possible within a track. The set goes

into pause/stop mode when the end/start of a track is

reached during searching.

Different play modes: SHUFFLE and REPEAT

You can select and change the various play modes

before or during playback, and combine the modes

with PROGRAM. (See

)

SHUFFLE

- tracks of the entire CD/ program are played

in random order

SHUFFLE REPEAT ALL

- to repeat the entire CD/ program

continuously in random order

REPEAT ALL

- repeats the entire CD/ program

REPEAT

- plays the current track continuously

To select play mode, press CD MODE/BAND

once or more.

Press

to start playback if in the stop position,

unless you have chosen a shuffle option.

To select normal playback, press CD MODE/BAND

repeatedly until the various modes are no longer

displayed.

–

You can also press the

button to cancel your play

mode.

DIGITAL TUNER MP3-CD PLAYER MP3-CD PLAYER MP3-CD PLAYER

INSTRUCTIONS FOR USE

3 - 4

No sound /power

–

Volume not adjusted

• Adjust the VOLUME

–

Mains lead not securely connected

• Connect the AC mains lead properly

–

Batteries exhausted/ incorrectly inserted

• Insert (fresh) batteries correctly

–

Headphones connected to the set

• Disconnect headphones

--

CD contains non-audio files

•Press SEARCH

or §

§

. once or more to skip to a

CD audio track, instead of the data file

Severe radio hum or noise

–

Electrical interference: set too close to TV, VCR or

computer

•Move the set to increase the distance

Poor radio reception

–

Weak radio signal

• FM: Adjust the FM telescopic aerial

noPr indication

–

During programming radio preset stations, you have

keyed in a preset number that exceeds the maximum

preset number i.e. 40

• Key in a preset number from 1-40

nOdISc indication

–

CD badly scratched or dirty

•

Replace/ clean CD, see Maintenance

–

Laser lens steamed up

•Wait until lens has cleared

nFdISc indication

–

CD-R(W) is blank/ not finalized

•

Use a finalized CD-R(W)

Sound skips during MP3 playback

--

MP3 file made at compression level exceeding

320kbps

• Use a lower compression level to record CD tracks

into MP3 format

Cannot find desired MP3 title

--

Wrong file extension used and/ or file name with

unsuitable text characters used

•Make sure the file names are typed in English text

characters an that the MP3 files end with .MP3

The CD skips tracks

–

CD damaged or dirty

• Replace or clean CD

–

SHUFFLE or PROGRAM is active

• Switch off SHUFFLE / PROGRAM

Remote control does not function properly

–

Batteries exhausted/ incorrectly inserted

• Insert (fresh) batteries correctly

–

Distance/ angle between the set too large

• Reduce the distance/ angle

Programming track numbers

In the stop position, select and store your CD tracks in

the desired sequence. Up to 20 tracks can be stored in

the memory.

1.

Press SEARCH

or §

§

on the set to select your

desired track number.

MP3-CD mode only:

First press ALBUM, PRESET

+

or

-

once or more to

find your album.

2.

Press PROG.

™ Display:

PROGRAM

and Prog.(See

6

)

™ If you attempt to program without first

selecting a track number, nOSEL is shown.

3.

Repeat steps 1-2 to select and store all desired

tracks.

™ Display: FuLL if you try to program more

than 20 tracks.

Reviewing the program

In the stop position, press and hold PROG until the

display shows all your stored track numbers in

sequence.

Erasing a program

You can erase the program by:

•pressing

9

twice

™ CLr is displayed briefly and

PROG

disappears.

•You select TUNER /POWER OFF.

SAFETY & MAINTENANCE INFORMATION

(See

8

)

• Don’t expose the set, batteries or CDs to humidity,

rain, sand or excessive heat.

•Clean the set with a dry cloth. Don't use any

cleaning agents containing alcohol, ammonia,

benzene or abrasives as these may harm the set.

•Place the set on a hard and flat surface so that the

system does not tilt. Make sure there is good

ventilation to prevent the set overheating.

•The mechanical parts of the set contain self-

lubricating bearings and must not be oiled or

lubricated.

CD player and CD handling

•If the CD player cannot read CDs correctly, use a

cleaning CD to clean the lens before taking the set

to repair.

• The lens of the CD player should never be touched!

• Sudden changes in the surrounding temperature

can cause condensation on the lens of your CD

player. Playing a CD is then not possible. Do not

attempt to clean the lens but leave the set in a

warm environment until the moisture evaporates.

•Always close the CD door to avoid dust on the lens.

•To clean the CD, wipe in a straight line from the

centre towards the edge using a soft, lint-free

cloth. Do not use cleaning agents as they may

damage the disc.

• Never write on a CD or attach any stickers to it.

MP3-CD PLAYER SAFETY AND MAINTENANCE TROUBLESHOOTING

WARNING:

Do not open the set as there is a risk of electric shock. Under no

circumstances should you try to repair the set yourself, as this will

invalidate the guarantee.

If a fault occurs, first check the points listed below before taking the set for repair.

If you are unable to remedy a problem by following these hints, consult your dealer or service centre.

Environmental information

We have done our best to reduce the packaging and make it easy to separate into 3 materials:

cardboard, expandable polystyrene, 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 packaging, exhausted

batteries and old equipment.

INSTRUCTIONS FOR USE

3 - 5

VARICAP ALIGNMENT

FM RF

FM IF

VCO

AM IF

AM RF

108MHz

87.5MHz

(65.81MHz)

87.5MHz

(65.81MHz)

87.5MHz

(65.81MHz)

279kHz 153kHz

1602kHz

531kHz

5130

check

5122

check

5123

check

8V –0.2V

4.3V –0.5V

(1.2V –0.5V)

8V –0.2V

1.1V –0.4V 8V –0.2V

1.1V –0.4V

1494kHz

558kHz

560kHz

1500kHz

5105

LW ferrite coil

198kHz

1494kHz

558kHz

560kHz

1500kHz

198kHz

2106 5104

MW ferrite coil

5104

MW ferrite coil

2106

3142 152kHz –1kHz

98MHz

5112

MAX

87.5 - 108MHz

(65.81 - 74, 87.5 - 108MHz)

153 - 279kHz

FM/MW/LW- version, 9kHz grid

531 - 1602kHz

1700kHz

530kHz

5123

check

8V –0.2V

1.1V –0.4V

1602kHz

531kHz

5123

check

6.9V –0.2V

1.1V –0.4V

108MHz

108MHz 2155

5131

FM/AM-version, 10kHz grid

530 - 1700kHz

98MHz, 1mV

continuous wave

450kHz

connect pin 6 of

IC 7101 (AM Osc.)

with 2.2k‰ to Vcc

Use Service Testprogram. By selecting the TUNER TEST test frequencies will be stored as preset frequencies automatically.

5119FM

10.7MHz, 45mV

continuous wave

mod=1kHz

∆f=–22.5kHz

If sensitivity of frequency counter is too low adjust to max. channel separation

(input signal: stereo left 90% + 9%, adjust output on right channel to minimum)

Repeat

ECO6, general with ferrite antenna, 070799

TUNER ADJUSTMENT TABLE ( ECO6 FM/MW- and FM/MW/LW - versions with ferrite antenna)

∆f=–10kHz

VRF = 0.5mV

see remark

220R

100nF

IC 7101

220R

100nF

IC 7101

2141

shortcircuit to block AFC

IC 7101

max.

symmetric

AM AFC

continuous wave

VRF = 2mV

5111

5114

0 – 2 mV DC

0 – 3 mV DC

FM/MW/LW- and FM/MW-version ( 9kHz grid)

531 - 1602kHz

∆f = –30kHz VRF as low as possible

max.

symmetric

FM/AM-version, 10kHz grid

530 - 1700kHz

RC network serves for damping the IF-filter while adjusting the other one.

LW has to be aligned before MW.

Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter

87.5 - 108MHz

(65.81 - 74, 87.5 - 108MHz)

FM/MW-version, 9kHz grid

531 - 1602kHz

(as low as

possible)

4 - 14 - 1

SERVO PROCESSOR SAA7325H

SYMBOL PIN DESCRIPTION

HFREF 1 comparator common mode input HFIN 2 comparator signal input ISLICE 3 current feedback output from data slicer V

SSA1

(1)

analog ground 1

DDA1

(1)

analog supply voltage 1

ref

6 reference current output pin

RIN

7 reference voltage for servo ADC’s D1 8 unipolar current input (central diode signal input) D2 9 unipolar current input (central diode signal input) D3 10 unipolar current input (central diode signal input) D4 11 unipolar current input (central diode signal input) R1 12 unipolar current input (satellite diode signal input) R2 13 unipolar current input (satellite diode signal input)

SSA2

(1)

analog ground 2 CROUT 15 crystal/resonator output CRIN 16 crystal/resonator input

DDA2

(1)

analog supply voltage 2 LN 18 DAC left channel differential output - negative LP 19 DAC left channel differential output - positive

neg

20 DAC negative reference input

pos

21 DAC positive reference input RN 22 DAC right channel differential output - negative RP 23 DAC right channel differential output - positive SELPLL 24 selects whether internal clock multiplier PLL is used TEST1 25 test control input 1; this pin should be tied LOW CL16 26 16.9344 MHz system clock output DATA 27 serial d4(1)ata output (3-state) WCLK 28 word clock output (3-state) SCLK 29 serial bit clock output (3-state) EF 30 C2 error flag output (3-state) TEST2 31 test control input 2; this pin should be tied LOW KILL 32 kill output (programmable; open-drain)

SSD1

(1)

digital ground 2 V2/V3 34 versatile I/O: input versatile pin 2 or output versatile pin 3 (open-drain) WCLI 35 word clock iutput (for data loopback to DAC) SDI 36 serial data input (for data loopback to DAC) SCLI 37 serial bit clock input (for data loopback to DAC) RESET 38 power-on reset input (active LOW) SDA 39 microcontroller interface data I/O line (open-drain output) SCL 40 microcontroller interface clock line input

SERVO PROCESSOR SAA7325H

SYMBOL PIN DESCRIPTION

RAB 41 microcontroller interface R/W and load control line input (4-wire bus mode) SILD 42 microcontroller interface R/W and load control line input (4-wire bus mode) STATUS 43 servo interrupt request line/decoder status register output (open-drain) TEST3 44 test control input 3; this pin should be tied LOW RCK 45 subcode clock input SUB 46 P-to-W subcode bits output (3-state) SFSY 47 subcode frame sync output (3-state) SBSY 48 subcode block sync output (3-state) CL11/4 49 11.2896 MHz or 4.2336 MHz (for microcontroller) clock output V

SSD2

(1)

digital ground 3

DOBM 51 bi-phase mark output (externally buffered; 3-state) V

DDD1(P)

(1)

digital supply voltage 2 for periphery CFLG 53 correction flag output (open-drain) RA 54 radial actuator output FO 55 focus actuator output SL 56 sledge control output

DDD2(C)

(1)

digital supply voltage 3 for core V

SSD3

(1)

digital ground 4 MOTO1 59 motor output 1; versatile (3-state) MOTO2 60 motor output 2; versatile (3-state) V4 61 versatile output pin 4 V5 62 versatile output pin 5 V1 63 versatile intput pin 1 LDON 64 laser drive on output (open-drain)

Note : All supply pins must be connected to the same external power supply voltage.

Abbreviations and Pin-description of CD ICs Abbreviations and Pin-description of CD ICs

+ 21 hidden pages

Philips AZ-1538 Service manual

CD Sound Machine

TABLE OF CONTENTS

HANDLING CHIP COMPONENTS

SERVICE TOOLS

AVAILABLE ESD PROTECTION EQUIPMENT

TECHNICAL SPECIFICATIONS

SERVICE MEASUREMENT

CONNECTIONS AND CONTROLS

POWER SUPPLY

DIGITAL TUNER

English

CONTROL/POWER SUPPLY POWER SUPPLY DIGITAL TUNER

MP3-CD PLAYER

DIGITAL TUNER MP3-CD PLAYER MP3-CD PLAYER MP3-CD PLAYER

MP3-CD PLAYER SAFETY AND MAINTENANCE TROUBLESHOOTING

TUNER ADJUSTMENT TABLE ( ECO6 FM/MW- and FM/MW/LW - versions with ferrite antenna)

Abbreviations and Pin-description of CD ICs Abbreviations and Pin-description of CD ICs