How it Works
Philips
Loading...
EXP-341
Service Manual
28 pgs3.53 Mb0
Table of contents
Loading...

Philips EXP-341 Service Manual

PRODUCT FAMILY EXPANIUM 8cm
Technical specification ......................................................1-1
Connections and controls..................................................1-2
Firmware upgrade .............................................................1-2
Features ............................................................................1-3
Accessories .......................................................................1-3
Safety & Warnings.............................................................1-4
Service hints
Dismantling CD-door.....................................................2-1
ESD protection equipment............................................2-2
Pin description of ICs.........................................................3-1
Start-up procedure.............................................................3-6
Service Test Program........................................................3-7
Blockdiagram.....................................................................3-8
Circuit diagrams
Supply part....................................................................4-1
Control part ...................................................................4-2
CD part..........................................................................4-3
DSP part........................................................................4-4
Audio part......................................................................4-5
Printed circuit board
Componentside view.....................................................4-6
Exploded view ...................................................................5-1
Mechanical partslist...........................................................5-1
Electrical partslist...............................................................6-1
Document history...............................................................7-1
© 3103 785 25190
Published by PW 0238 Service Audio Printed in The Netherlands Subject to modification Version 1.0

Portable CD-player with MP3-playback

CLASS 1
LASER PRODUCT

EXP431

all versions

TABLE OF CONTENTS

©
Copyright 2002 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.
1-1

TECHNICAL SPECIFICATION

General
Dimensions (W x H x D) : 93.0 x 22.5 x 97.5mm Weight without batteries : 140g
Power supply modes
DC-in socket : 2.9..6.5V Primary batteries (2 x LR03) : 1.7..3.6V Rechargable batteries (AY3363) : 1.7..3.6V Voltage protection DC-in socket : -14.0..+14.0V
Battery lifetime
Battery level detection
Charge section (not on all versions)
Charge current : 250mA ±10% Charge time for 80% AY3363 : 3.0h nom. Charge time for 100% AY3363 : 4.0h nom. Max. charge time (µP controlled) : 4.75h Temperature protection : 50°C ±5°C
Current consumption CDDA-playback
Current consumption MP3-playback
Shock resistance (ESP=off)
+X/-X direction : ≥1.0g +Y/-Y direction : ≥1.0g +Z/-Z direction : ≥1.0g
Headphone out (measured with 16Ω load, DBB/ESP=off) Output power (THD=10%)
/17 version only : 2x10mW (+1/-3dB)
all other versions : 2x3mW (+1/-3dB) Frequency response (1mW) : 100Hz-20kHz within 6dB S/N ratio (unwght) : ≥80dB (83dB typ.) S/N ratio (A-wght) : ≥82dB (85dB typ.) THD+N (1kHz, 1mW) : ≤1% (0.2% typ.) Channel crosstalk (1kHz, no load): ≤-24dB (-44dB typ.) Channel unbalance (-40dB) : ≤5dB Volume attenuation (1kHz) : ≥60dB
Sound presets
Laser
Output power : <5mW (3mW typ.) Wavelength : 780nm
Measurement setup
Use Audio Signal disc SBC429 4822 397 30184
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
TESERPDNUOS
esnopserycneuqerF
zHk36 zHk1 zHk01
NOELBERTBd0 ± Bd2Bd0 ± Bd2Bd5 ± Bd2
1SSABBd5+ ± Bd2Bd0 ± Bd2Bd0 ± Bd2
2SSABBd9+ ± Bd2Bd0 ± Bd2Bd0 ± Bd2
TNERRUC
NOITPMUSNOC
)V5.4(YLPPUSNI-CD )V52.2(YLPPUS.TTAB
FFO/NO=PSE PL=PSE FFO/NO=PSE PL=PSE
edom-yalP.pytAm041.pytAm001.pytAm071.pytAm021
edom-pmuJ.pytAm023.pytAm004
edom-egrahC.pytAm003a/n
yb-dnatS
)egrahcer.lcxe(
.pytAm0354 µ .pytA
TNERRUC
NOITPMUSNOC
)V5.4(YLPPUSNI-CD )V52.2(YLPPUS.TTAB
FFO/NO=PSE PL=PSE FFO/NO=PSE PL=PSE
edom-yalP.pytAm041.pytAm511.pytAm071.pytAm831
edom-pmuJ.pytAm022.pytAm003
edom-egrahC.pytAm003a/n
yb-dnatS
)egrahcer.lcxe(
.pytAm0354 µ .pytA
LEVELNOITCETED seirettabyramirP seirettabelbagrahceR
ytpmeyrettaB
V8.1
Vm05-/001+
V8.1
Vm05-/001+
1kaewyrettaB
+levelytpmeyrettab
V9.0 ± Vm001
+levelytpmeyrettab
V7.0 ± Vm001
2kaewyrettaB
+levelytpmeyrettab
V6.0 ± Vm001
+levelytpmeyrettab
V5.0 ± Vm001
3kaewyrettaB
+levelytpmeyrettab
V3.0 ± Vm001
+levelytpmeyrettab
V3.0 ± Vm001
EMITEFILYRETTAB
ADDC
FFO/NO=PSE
ADDC
PL=PSE
3PM
NO=PSE
3PM
PL=PSE
seirettabyramirP
30RLx2
≥ h8.2
).pyth5.3(
≥ h8.3
).pyth3.5(
≥ h5.2
).pyth5.3(
≥ h9.4
).pyth7(
seirettabelbagrahceR
)hAm007(3633YA
≥ h2
).pyth8.2(
≥ h3
).pyth4(
≥ h2
).pyth8.2(
≥ h8.3
).pyth5.5(
1-2

CONNECTIONS AND CONTROLS

1 VOL E..........adjusts the volume
2 SOUNDS.........selects the bass and treble adjustment
3 ESP.................Electronic Skip Protection prevents music
interruptions caused by shocks
4 9 .....................stops playback and switches the set off
5 MODE .............selects playback options such as SHUFFLE and
REPEAT
6 DISPLAY.........selects the track and album information
7 ........................display
8 ...................marks and unmarks a favourite
9 .................selects playback of favourites
0 2; ...................switches the set on, starts playback and
interrupts playback
! –......................MP3-CD only: selects the previous album or
skips backward
@ ∞ ....................skips backward and searches backward
# § ....................skips forward and searches forward
$ +......................MP3-CD only: selects the next album or skips
forward
% OPEN 2 ..........opens the CD lid
^ LINE OUT/p ....3.5mm line out to connect
- the headphones
- the remote control
- this set to the audio input of your stereo equipment
& ........................eyelet for the carrying strap
* OFF•RESUME•HOLD
OFF.................switches RESUME and HOLD off
RESUME.........stores the last position played
HOLD..............locks all buttons
( ........................type plate
) 4.5V DC ..........to connect the external power supply

FIRMWARE UPGRADE

Occasionally, Philips releases new software (“firmware”) for your set.
1 Connect the mains adapter to 4.5V DC on the set and to the wall
socket.
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 Philips Audio homepage www.audio.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 an 8 cm 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 complete is 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 steps 5 and 6 until upgrading is completed successfully.
LINE O
U
T
V
OL.
O
P
E
N
S
O
U
N
D
S
E
S
P
ALBUM
ALBUM
SEARCH
PLA
Y
STOP
D
IS
P
L
A
Y
M
O
D
E
4
.
5
V
D
C
OFF • RESUME • HOLD
1
2
3
4
5
6
7
8 9
0
! @ # $
%
^
*
&
)
(

FEATURES

ACCESSORIES

ELBATROP-DCROFSEIROSSECCA
”mc8MUINAPXE“YLIMAFTCUDORP
134PXE
c00/ 10/ 71/
00/0713YA rotpadACD/CA716019122284X
20/0713YA rotpadACD/CA676019122284X
71/0713YA rotpadACD/CA616019122284X
1923YA partsdnaH016318033013 XXX
3633YA HMiNyrettabelbagrahceR045488033013XX
4643YA mm5.3(DROCIFIH → )gulp-L,hcnic188110232284 OOO
00/1053YA ettessaCrotpadAraC950017932284 OOO
00/5453YA retrevnoCCD/CDraC330019122284 OOO
00/9673YA lortnoCetomeRDCLdroC080158110413 XXX
s77/545EHCBS )gulp-S(enohpraE962000012809 XXX
elbaliavalanoitpo...O,tesehthtiwdeilppus...X
ELBATROP-DCFOSERUTAEF
”mc8MUINAPXE“YLIMAFTCUDORP
134PXE
c00/ 10/ 71/
KCABYALPAMW/3PM/CAA/– ● –//– ● –//– ● –/
YTILIBITAPMOCELBATIRWER-DC
●●●
ADDCNOITCETORPPIKSCINORTCELEs081s081s081
3PMNOITCETORPPIKSCINORTCELEs594s594s594
EZISMARDPSEtibM46tibM46tibM46
EDOMYALPGNOL
●●●
NOITCNUFEMUSER/DLOH
● / ●●/ ●●/ ●
SEGATSELBERT/BBD1/21/21/2
KCABDEEFCITSUOCA
●●●
YROMEMMARGORP999999
HMiN/dCiNNOITCNUFEGRAHCER
● / ●●/ ●
–/–
PILCTLEB –––
LORTNOCETOMERDCLDROC
●●●
THGILKCABYALPSID –––
TUPTUOLATIGID/ENIL–/––/––/–
1-3

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
1-4

SERVICE HINTS

REPAIR POSITION COPPERSIDE

To get access to the copperside of the printed board assembly proceed as follows:
1. Remove the two screws on the bottom
2. Open the CD-door and remove the screw on the right side of the cabinet
3. Open the battery-door and remove the screw inside the battery compartment
4. Lift the bottom (take care of battery springs)
5. Supply the unit via external DC-socket
6. Ensure that the door switch is closed during measurements

DISMANTLING THE CD-DOOR

To dismantle the CD-door proceed as follows:
1. Dismantle the bottom as described above
2. Remove the printed board/drive assembly
2. Disconnect the membrane keyboard (flex-foil connector on copperside of printed board)
3. Bend the cabinet leftwards downwards 1, while bending the CD-door rightwards upwards 2
The procedure appears to be tricky at first, but force needs to be applied with thumb and middle finger only. It’s just like snapping one’s fingers.

REPAIR POSITION COMPONENTSIDE

To get access to the componentside of the printed board assembly proceed as follows:
1. Remove the two screws on the bottom
2. Open the CD-door and remove the screw on the right side of the cabinet
3. Open the battery-door and remove the screw inside the battery compartment
4. Lift the cabinet part
5. Supply the unit via the external DC-socket
6. Ensure that the door switch is closed during measurements
Remark: Don’t worry about applied force - both parts have a
solid design. However, do not use screwdrivers or tools like that. Sharp edges might damage hinge or cabinet part.
2-1

HANDLING CHIP COMPONENTS

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
2-2

PIN DESCRIPTION OF INTEGRATED CIRCUITS

TZA1024 – HF-PREAMPLIFIER AND LASER SUPPLY CIRCUIT
Pin Name Direction Description
1 LD HF-preamp → CD-drive current output to laser diode 2 VCCL +2.6V laser supply voltage 3 CFIL → HF-preamp external filter capacitor 4 MON CD-drive → HF-preamp laser monitor diode input 5 DIN CD-drive → HF-preamp central diode input 6 GND GND ground 7 PWRON CD10 → HF-preamp power-on select input 8 CMFB +2.6V / 2 common mode feedback voltage input
9 RFFB → HF-preamp external RF feedback resistor 10 RFEQO HF-preamp → RF amplifier output 11 CDRW CD10 → HF-preamp gain select input for CDDA/CDRW 12 EQSEL CD10 → HF-preamp equalizer/speed select input 13 VCC2 +2.6V supply voltage 14 RGADJ GND external laser supply gain adjust resistor
BD6609FV – DISCMOTOR DRIVER
Pin Name Direction Description
1 UOUT discmotor driver → CD-drive U-phase coil output
2 RF GND output current detection (power part GND)
3 UIN → discmotor driver BEMF comparator input
4 VIN → discmotor driver BEMF comparator input
5 WIN → discmotor driver BEMF comparator input
6 COM discmotor driver → CD-drive center tap of motor coil
7 CST → discmotor driver capacitor connector for oscillation
8 CSL1 → discmotor driver capacitor connector for slope
9 CSL2 → discmotor driver capacitor connector for slope 10 GND GND GND for signal 11 FG discmotor driver → FG output 12 BRK- DSP → discmotor driver brake comparator input 13 BRK+ +1.3V brake comparator input 14 STBY +2.6V stand by 15 RIB → discmotor driver resistor connection for output transistor base current setting 16 VCC +2.6V power supply for signal 17 VM servo driver → discmotor driver power supply for motor 18 GSUB GND substrate 19 WOUT discmotor driver → CD-drive W-phase coil output 20 VOUT discmotor driver → CD-drive V-phase coil output
3-1

SC111259AFTA – SERVO DRIVER & POWER MANAGEMENT IC

Pin Name Direction Description
1 SLEEP µP → servo driver sleep input 2 WAKE µP → servo driver wake input 3 VR +VR reference voltage input (motor driver) 4 ERR4 CD10 → servo driver control signal input (slide error signal) 5 CF4 → servo driver phase correction capacitor connect (CH4) 6 CF3 → servo driver phase correction capacitor connect (CH3) 7 ERR3 CD10 → servo driver control signal input (radial error signal) 8 ERR2 DM driver circuit → servo driver control signal input (disc speed error signal)
9 CF2 → servo driver phase correction capacitor connect (CH2) 10 CF1 → servo driver phase correction capacitor connect (CH1) 11 ERR1 CD10 → servo driver control signal input (focus error signal) 12 OUT1A servo driver → CD-drive positive drive output (CH1) 13 PGND1 GND H-bridge driver ground 14 OUT1B servo driver → CD-drive negative drive output (CH1) 15 VIN12 +A CH1 and CH2 H-bridge driver supply voltage 16 OUT2B servo driver → discmotor driver negative drive output (CH2) 17 PGND2 GND H-bridge driver ground 18 OUT2A servo driver → CD-drive positive drive output (CH2) 19 OUT3A servo driver → CD-drive positive drive output (CH3) 20 PGND2 GND H-bridge driver ground 21 OUT3B servo driver → CD-drive negative drive output (CH3) 22 VIN34 +A CH3 and CH4 H-bridge driver supply voltage 23 OUT4B servo driver → CD-drive negative drive output (CH4) 24 PGND4 GND H-bridge driver ground 25 OUT4A servo driver → CD-drive positive drive output (CH4) 26 VG servo driver → charge pump output 27 C2H → servo driver charge pump capacitor connect 28 C1H → servo driver charge pump capacitor connect 29 C1L → servo driver charge pump capacitor connect 30 C2L → servo driver charge pump capacitor connect 31 VIN battery → servo driver battery supply voltage 32 RSTB servo driver → reset block output 33 CHGSW servo driver → charge circuit transistor drive output for battery charger 34 RS charge circuit → servo driver OpAmp non-inverting input for battery charger 35 INM2 → servo driver error amplifier inverting input 36 RF2 → servo driver error amplifier output 37 DCIN +DC DC power supply from AC/DC adaptor 38 VDET servo driver → DCIN over voltage and VIN low voltage detect output 39 VREF servo driver → Voltage reference circuit output 40 DTC → servo driver max. duty control voltage input for power management 41 VOUT servo driver → DC/DC converter PWM output for power management 42 VC → servo driver power management power supply
43 CGND GND internal ground 44 RF1 servo driver → OpAmp output for power management 45 INM1 → servo driver OpAmp inverting input for power management 46 CLK → servo driver clock input 47 OE DSP → servo driver output enable for motor drivers 48 CHGON µP → servo driver charge enable for battery charger
3-2
Loading...
+ 19 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use