Philips AZT-9240 Service manual

PRODUCT FAMILY ULTRA – TUNER

Technical specification ...............................................1-1..1-2

Features ............................................................................1-2

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

Instruction For Use (excerpt)......................................1-4..1-6

Accessories .......................................................................1-7

Safety & Warnings.............................................................1-8

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...3-3

Start-up procedure.............................................................3-4

Service Test Program................................................3-5...3-6

Blockdiagram.....................................................................3-7

Circuit diagrams

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

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

Control part ...................................................................4-3

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

Tuner part (for orientation only).....................................4-5

Printed circuit board

Componentside view.....................................................4-6

Copperside view............................................................4-7

Tuner board (for orientation only)..................................4-8

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

Mechanical partslist...........................................................5-2

Electrical partslist ......................................................6-1...6-4

CS 46 741

© 3103 785 25070

Published by PW 0110 Service Audio Printed in The Netherlands Subject to modification

Portable compact disc player

CLASS 1

LASER PRODUCT

TABLE OF CONTENTS

©

Copyright 2001 Philips Consumer Electronics B.V. Eindhoven, The Netherlands

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.

AZT9240

all versions

1-1

CS 46 742

TECHNICAL SPECIFICATION

General

Dimensions (WxHxD) : 128x34x139.5mm
Weight without batteries : 220g

Laser

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

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 – CD mode

Battery level detection – Tuner mode

Current consumption

Charge section (not on all versions)

Charge current : 250mA ±10%
Charge time for 80% AY3362 : 4.0h nom.
Max. charge time (µ P controlled) : 7h
Temperature protection : 50°C ±5°C

Tuner (not on all versions)

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

Output power (THD=10%)

/17 version only : 2x6mW (+1/-3dB)

all other versions : 2x2.5mW (+1/-3dB)
Frequency response CD (1mW) : 100Hz-20kHz within 6dB
Frequency response AM (1mW) : 100Hz-1.5kHz within
6dB
Frequency response FM (1mW) : 100Hz-12.5kHz within
6dB
S/N ratio CD (unwght) : ≥78dB (81dB typ.)
S/N ratio CD (A-wght) : ≥82dB (84dB typ.)
S/N ratio AM (A-wght) : ≥40dB (45dB typ.)
S/N ratio FM (A-wght) : ≥45dB (55dB typ.)
THD+N CD (1kHz, 1mW) : ≤1% (0.2% typ.)
THD+N AM/FM (1kHz, 1mW) : ≤7% (2% typ.)
Channel crosstalk (1kHz, no load): ≤-24dB (-44dB typ.)
Channel unbalance (-40dB) : ≤5dB
Volume attenuation (1kHz) : ≥60dB

Dynamic Bass Boost DBB

EGATSBBD

esnopserycneuqerF

zHk36 zHk1 zHk01

1BBDBd6+ ± Bd2Bd0 ± Bd2Bd0 ± Bd2

2BBDBd9+ ± Bd2Bd0 ± Bd2Bd5+ ± Bd2

MF MA

egnargninuTzHM801-5.78

zHk2061-135

71/rofzHk0071-035

FIzHM7.01zHk054

ytivitisneS

%03=m,N/SBd62

tniopgnitimilBd3-

≤ ).pytfBd51(fBd22
≤ ).pytfBd51(fBd62

≤ ).pytm/Vm3(m/Vm5

dirgycneuqerF

zHk001

71/rofzHk05

zHk9

71/rofzHk01

noitrotsiD

≤ ).pyt%2(%7

,Vm1=fr ∆ zHk57=f

≤ ).pyt%2(%7

%08=m,Vm1=fr

oitarnoitcejeregamI ≥ ).pytBd52(Bd02 ≥ ).pytBd04(Bd82

EDOMNOITAREPO

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

FFOPSE NOPSE FFOPSE NOPSE

edomyalPDC.pytAm011.pytAm001.pytAm031.pytAm021

edompmuJDC.pytAm022.pytAm022.pytAm003.pytAm004

edomRENUT.pytAm03.pytAm03

yb-dnatS

)egrahcer.lcxe(

.pytAm51053 µ .pytA

LEVELNOITCETED seirettabyramirP seirettabelbagrahceR

ytpmeyrettaB

V0.2

Vm05-/001+

V0.2

Vm05-/001+

1kaewyrettaB

+levelytpmeyrettab

V7.0 ± Vm001

+levelytpmeyrettab

V5.0 ± Vm001

2kaewyrettaB

+levelytpmeyrettab

V54.0 ± Vm001

+levelytpmeyrettab

V53.0 ± Vm001

3kaewyrettaB

+levelytpmeyrettab

V2.0 ± Vm001

+levelytpmeyrettab

V2.0 ± Vm001

LEVELNOITCETED seirettabyramirP seirettabelbagrahceR

ytpmeyrettaB

V8.1

Vm05-/001+

V8.1

Vm05-/001+

1kaewyrettaB

+levelytpmeyrettab

V57.0 ± Vm001

+levelytpmeyrettab

V7.0 ± Vm001

2kaewyrettaB

+levelytpmeyrettab

V54.0 ± Vm001

+levelytpmeyrettab

V5.0 ± Vm001

3kaewyrettaB

+levelytpmeyrettab

V3.0 ± Vm001

+levelytpmeyrettab

V3.0 ± Vm001

EPYTYRETTAB

EDOMDC

FFOPSE

EDOMDC

NOPSE

RENUT

EDOM

seirettabyramirP

6RLx2

≥ h21

).pyth81(

≥ h21

).pyth81(

≥ h05

).pyth07(

seirettabelbagrahceR

)hAm0021(2633YA

≥ h7

).pyth01(

≥ h7

).pyth01(

≥ h52

).pyth53(

EDOMYLPPUS

egnaregatloV

DC renuT

tekcosNI-CDV0.6-5.2

seirettabyramirP

6RLx2

V6.3-6.1V6.3-9.1

seirettabelbagrahceR

)hAm0021(2633YA

V6.3-6.1V6.3-9.1

Measurement setup CD

Use Audio Signal disc SBC429 4822 397 30184

Measurement setup FM

Use bandpass filter to eliminate hum (50Hz, 100Hz) and
disturbance from pilottone (19kHz, 38kHz).

Measurement setup AM

To avoid admospheric interference all AM measurements
have to be carried out in a Farraday’s cage.
Use bandpass filter (or at least a high pass filter with 250Hz)
to eliminate hum (50Hz, 100Hz).

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

RF Generator

e.g. PM5326

Ri=50Ω

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

Ri=50Ω

Low pass filterDUT S/N and distortion meter

L

R

i.e. Sennheiser UPM550

with FF-filter

Level meter

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

22kHz
13th order

1-2

CS 46 743

FEATURE OVERVIEW

ELBATROP-DCFOSERUTAEF

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HMiN/dCiNNOITCNUFEGRAHCER

● / ●

DERAPERPLORTNOCETOMERDROC

–

THGILKCABYALPSID

–

TUPTUOLATIGID/ENIL

–/–

CONNECTIONS AND CONTROLS

0

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1-3

CS 46 744

1DIGITAL DBB....DIGITAL DYNAMIC BASS BOOST

switches the bass enhancement on and
off

22;......................switches the player on, starts or pauses

CD play

39........................stops CD play, clears a CD program or

switches the player off

4§.......................skips and searches CD tracks forwards,

selects the next preset radio station

∞.......................skips and searches CD tracks

backwards, selects the previous preset
radio station

5MODE ...............selects the different playing possibilities:

shuffle, shuffle repeat all, repeat, repeat
all and SCAN

6 ..........................display

73 .......................tunes to radio stations upwards, sets the

time upwards

4 .......................tunes to radio stations downwards, sets

the time downwards

8SET...................activates / confirms the current time

setting, activates / confirms the alarm
time setting

9CLOCK..............switches to clock or alarm clock display

0PROGRAM........programs CD tracks and radio stations,

reviews the program

!RADIO·BAND ....switches the radio on, selects a

waveband

@RESUME...........stores the last position of a CD track

played

HOLD................locks all buttons

OFF...................switches RESUME and HOLD off

#LINE OUT/p ......3.5 mm headphone socket, socket to

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

$VOL E ............adjusts the volume

%OPEN 2 ............opens the CD lid

^4.5V DC.............socket for external power supply

& ..........................belt clip holder

* ..........................typeplate

(ESP...................ELECTRONIC SKIP PROTECTION

ensures continuous CD playback
regardless of vibrations and shocks,
switches the alarm function on and off

INSTRUCTION FOR USE (excerpt)

• FM: The headphone wire is used as FM antenna.
If necessary move it for optimum reception.

• MW: The internal MW antenna is directed by turning the player.

Antennas

K

You can tune to any FM or MW station automatically or manually.
Stereo stations are indicated by

ST.

1 Press RADIO·BAND to switch the radio on.
2 Press RADIO·BAND if necessary repeatedly to select the desired waveband.

y FM 1, FM 2, FM 3, FM 4 or MW is shown.

Tuning to radio stations automatically
1 Keep 3 or 4 pressed for at least 1 second.

y The radio tunes to a station with sufficient strength and radio play starts.

A (for “automatic search”) and the current waveband and frequency are displayed.

2 Repeat searching until you find the desired radio station.
Tuning to radio stations manually

1 Keep 3 or 4 pressed.
2 Release 3 or 4, then briefly press 3 or 4 again when you are close to the desired

frequency.

3 Briefly press 3 or 4 repeatedly until you reach the desired frequency.

y Radio play starts. The current waveband and frequency are displayed.

• To switch from radio play to CD play press 2;.

• Press 9 to switch the radio off.

Note: In case of interferences in stereo mode press ·

MODE

to switch to mono.

Radio play

You can select up to 99 tracks and store them in memory in a desired sequence.
Any track can be stored more than once.

1 While playback is stopped, select a track with ∞ or §.
2 Press PROGRAM to store the track.

y PROGRAM lights up; the track number programmed and P with the total number of

stored tracks are displayed.

3 Select and store all desired tracks in this way.
4 Press 2; to start playback of your selected tracks.

y PROGRAM is shown and playback starts.

• You can review the program by pressing PROGRAM for more than 2 seconds.

y The display shows all stored tracks in sequence.

Notes: – If you press

PROGRAM

and there is no track selected,

SELECt

is displayed.

– If you try to store more than 99 tracks,

FULL

is displayed.

Clearing the program
1 If necessary, press 9 to stop playback.

2 Press 9 to clear the program.

y CLEAr is displayed once, PROGRAM goes off and the program is cleared.

Notes: The program will also be cleared if you

– interrupt the power supply or
– open the CD lid.

Programming track numbers

1-4

CS 46 745

T·

E

S

CK

O

CL

M

RA

G

PRO

RADIO·BAND

·

PROGRAM

RADIO·BAND

E
D
O
M

N
E
P

O

0

OPEN

0

Provided the current time has been set, your player can be used as an alarm clock.
1 Keep SET· pressed for approximately 2 seconds, then briefly press SET· again.

y AL is displayed and the alarm clock digits 00:00 flash.

2 Press 3 or 4 repeatedly within 5 seconds to set the alarm time.

y is shown and the alarm time is displayed.

3 Press SET· twice or do not press any key for 5 seconds.

y The alarm time is set and the alarm display goes off.

• To switch to the alarm clock display during CD or tuner play, press CLOCK twice.

y is shown and the alarm time is displayed for 5 seconds.

Alarm time setting

PROGRAM

C

LO

CK

DIO·B

A

ND

Your player has a built-in clock. However CD or tuner play is not conditional upon the
time setting.

1 Keep SET· pressed for approximately 2 seconds.

y The clock digits OO:OO flash.

2 Keep 3 or 4 pressed, then briefly press 3 or 4 again repeatedly within 5 seconds to

set the current time.

y The current time is displayed.

3 Press SET· three times or do not press any key for 5 seconds.

y The current time is set and the time display goes off.

• To switch to the clock display during CD or tuner play, press CLOCK.

y The current time is displayed for 5 seconds.

Notes: – When the player is supplied by batteries do not remove the batteries during

radio play, otherwise time settings will be lost and will have to be readjusted.

– If the power supply is interrupted for longer than 1 minute, all time settings

will be lost and will have to be readjusted.

Time setting

You can store up to 30 radio stations.

1 Tune to a desired radio station and press PROGRAM.
2 Press ∞ or § if necessary repeatedly to select the number that should be assigned to

this radio station.

3 Press PROGRAM while

PRESET is blinking to confirm the storing.

y PRESET, the waveband, the frequency and the preset number of the stored station

are displayed.

4 Store all desired stations this way.

Note: Already stored stations can be recognized by the indicator

PRESET

and the preset

number.

Tuning to a stored radio station
1 Select the waveband.

2 Press ∞ or § if necessary repeatedly to select the preset number of the desired radio

station.

y Radio play starts. PRESET, the waveband, the frequency and the preset number of

the stored station are displayed.

Storing radio stations

1-5

CS 46 746

PROGRAM

RADIO ·BAN

E

OD

·M

ESP

D

SET·

Troubleshooting

1-6

CS 46 747

MELBORP ESUACELBISSOP NOITULOS

tratstonseod

CSIdFn

noitacidni

CSIdon

noitacidni

dloH

skcartspiksDC

dabrodnuosoN

ytilauqdnuos

sgnittesemit

seirettaB

yltcerrocnidetresniseirettaB

ytpmeeraseirettaBseirettabehtegnahC

kcabyalp,rewopoN

esurac-nI

ffo

ytriderasniptcatnoChtolcahtiwmehtnaelC

retpadasniaM

noitcennocesooL

sinoitinginehwderewoptonsirethgiletteragiC

ylreporpdedrocertonsi)R-DC(WR-DC

ytridrodehctarcsyldabsiDCehTDCehtnaelcroecalpeR

detresniyltcerrocnirotonsiDC sdrawpulebal,DCatresnI

pudemaetssisnelresalehT deraelcsahsnelehtlitnutiaW

detavitcasiDLOHdloHetavitcaeD

onro/dnanoitacidni

slortnocotnoitcaer

senohp

esurac-nI

noitpeceroidarrooP

krowtonseodmralA detavitcatonsimrala/testonsiemitmralA mralaehtetavitca/emitmralaehtteS

fossol,snoitcnuflaM

egrahcsidcitatsortcelE

ytridrodegamadsiDCehTDCehtnaelcroecalpeR

ELFFUHS,EMUSER ro MARGORP evitcasiffoMARGORProELFFUHS,EMUSERhctiwS

detavitcasiESUAPsserP ;2

snoitcennocytridrognorw,esooL snoitcennocnaelcdnakcehC

detsujdatonsiemuloVemulovehttsujdA

elibomevitcafoytinicivoteudsnoitcnuflaM

reyalpehtraensdleifcitengamgnortS snoitcennocronoitisops'reyalpehtegnahC

yltcerrocnidetresnisiretpadaettessaC

wol/hgihootsiracehtedisnierutarepmeT erutarepmetehtottsujdareyalpehtteL

ytridsitekcosrethgiletteragiC tekcosrethgiletteragicehtnaelC

ettessacracehtfonoitceridkcabyalpgnorW

erutaefesreverotuas'reyalp

langisoidarkaeW noitpecermumitporofannetnaehttceriD

ekiltnempiuqecirtceleybdesuacecnerefretnI

.ctesenigne,sretupmoc,sVT

seirettabkaewhtiwnoitarepodeunitnoC sgnittestsujdaer,seirettabegnahC

yltcerrocseirettabehttresnI

ylerucesretpadaehttcenoC

seirettabtresnironoitinginohctiwS

etelpmocotredroceRDCehtnoEZILANIFesU

gnidrocereht

ekatroylppusrewopmorftesehttcennocsiD

sdnoceswefarofseirettabehttuo

elibomevitcamorfyawareyalpehtpeeK

senohp

yltcerrocretpadaettessacehttresnI

noitceridesreverotuaehtegnahC

tnempiuqecirtcelemorfyawareyalpehtpeeK

ACCESSORIES

ELBATROP-DCROFSEIROSSECCA

”RENUT-ARTLU“YLIMAFTCUDORP

0429TZA

00/ 10/ 71/ p71/ 91/

00/0713TYA rotpadACD/CA017238110413X

20/0713TYA rotpadACD/CA027238110413X

71/0713TYA rotpadACD/CA057238110413XX

91/0713TYA rotpadACD/CAreilppuslacolX

00/2633YA HMiNyrettabelbagrahceR021488033013XXX

4643YA mm5.3(DROCIFIH → )gulp-L,hcnic188110232284 OOOOO

00/1053YA ettessaCrotpadAraC950017932284 OOOOO

00/5453YA retrevnoCCD/CDraC330019122284 OOOOO

77/545EHCBS )gulp-L(enohpraE862000012809XXX

77/053LHCBS )gulp-L(enohpdaeH532000012809XX

PILC-TLEB 052074033013 XXOOX

elbaliavalanoitpo...O,tesehthtiwdeilppus...X

1-7

CS 46 748

SAFETY & WARNINGS

© WARNING

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

i

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

ñ

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 !

f

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

ESD

SAFETY

d

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.

f

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

1-8

CS 46 749

SERVICE HINTS

REPAIR POSITION COPPERSIDE

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

1. Remove the bottom screws (6x)

2. Lift the bottom-cabinet

3. Supply the unit via external DC-socket

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 and printed board/drive assembly

2. Disconnect membrane keyboard
(flex-foil connector on copperside of printed board)

3. Bend the cabinet rightwards downwards as indicated in
the picture above.

REPAIR POSITION COMPONENTSIDE

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

1. Remove the bottom screws (6x)

2. Open the CD-door

3. Lift the top-cabinet and put it backwards on the table

4. Supply the unit via the external DC-socket

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

Remark: Do not use screwdrivers or tools like that.

Sharp edges could damage hinge or cabinet part.

2-1

CS 46 750