Philips EXP-7361 Service manual

EXP7361

all versions

Published by PW 0417 Service Audio Printed in The Netherlands Subject to modification

Version 1.0

Portable CD-player with MP3/WMA playback

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.

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

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

Features ............................................................................1-3

Accessories .......................................................................1-3

Safety & Warnings.............................................................1-4

Service hints

Lead free soldering .......................................................2-1

Dismantling instructions ................................................2-1

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

Reassembling instructions ............................................2-2

Handling chip components............................................2-3

Service tools..................................................................2-3

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

Service Test Program........................................................3-4

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

Circuit diagrams

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

Control part ...................................................................4-2

CD part..........................................................................4-3

Tuner part......................................................................4-4

Printed circuit board

Componentside view.....................................................4-5

Copperside view............................................................4-6

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

Mechanical partslist...........................................................6-1

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

Revision list .......................................................................7-1

PRODUCT FAMILY EXPANIUM 7

CLASS 1

LASER PRODUCT

1-1

TECHNICAL SPECIFICATION

General

Dimensions (W x H x D) : 133 x 15.5 x 133mm Weight without batteries : 150g

Power supply modes

DC-in socket (for play-mode) : 2.9..7.0V DC-in socket (for charge-mode) : 3.6..7.0V Primary batteries (battery box) : 1.7..3.2V Rechargeable batteries (AY3365) : 1.7..3.2V Voltage protection DC-in socket : -14.5..+14.5V

Battery lifetime

Battery level detection

Charge section (not on all versions)

Charge current : 250mA ±10% Charge time for 80% AY3365 : 4.0h nom. Charge time for 100% AY3365 : 6.0h nom. Max. charge time (µP controlled) : 7h Temperature protection : 50°C ±5°C

Current consumption

off-phase means servos switched off and audio data is played back from ESP memory

Headphone out CD/MP3/WMA (16Ω load, DBB/ESP=off) Output power (THD≤10%)

/17 version only : 2x5mW (+2/-3dB)

all other versions : 2x2.5mW (+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 (-30dB typ.) Channel unbalance (-40dB) : ≤5dB Volume attenuation (1kHz) : ≥60dB

Sound presets

Laser

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

Measurement setup CD/MP3/WMA

Use Audio Signal disc SBC429 4822 397 30184

FM-Tuner

Tuning range : 87.5..108MHz Tuning grid : 50kHz (100kHz for /17) IF : 225kHz Sensitivity (26dB S/N, m=30%) : ≤22dBf (15dBf typ.)

-3dB limiting point : ≤26dBf (15dBf typ.) Distortion (rf=1mV, ∆f=75kHz) : ≤7% (2% typ.)

Headphone out Tuner (16Ω load, DBB/ESP=off) Output power (THD≤10%)

/17 version only : 2x5mW (+2/-3dB)

all other versions : 2x3mW (+1/-3dB) Frequency response : 100Hz-9kHz within 6dB S/N ratio stereo (A-wght) : ≥52dB (55dB typ.) THD+N (1kHz, 0dB) : ≤1% (0.4% typ.) Channel crosstalk (1kHz, no load): ≤-22dB (-25dB typ.) Channel unbalance (1kHz, 0dB) : ≤5dB

Low pass filterDUT S/N and distortion meter

i.e. Sennheiser UPM550

with FF-filter

Level meter

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

22kHz 13th order

TESERPDNUOS

esnopserycneuqerF

zHk36 zHk1 zHk01

1BBDBd6+ ± Bd2Bd0 ± Bd2Bd0 ± Bd2

2BBDBd21+ ± Bd2Bd0 ± Bd2Bd5+ ± Bd2

TNERRUC

NOITPMUSNOC

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

PSE/MSP

ffo

MSP

esahp-no

MSP

esahp-ffo

MSP

egaregva

edom-yalP.pytAm98.pytAm021.pytAm04.pytAm38

edom-pmuJ.pytAm003.pytAm052

edom-egrahC.pytAm082a/n

edom-renuT.pytAm05.pytAm73

yb-dnatS

)egrahcer.lcxe(

.pytAm12.pytAm54.0

LEVELNOITCETED

yramirP

seirettab

elbaegrahceR

seirettab

ytpmeyrettaB

V7.1

± Vm001

V7.1

± Vm001

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 AMW/3PM

seirettabyramirP

60RLx2

≥ h32

).pyth54(

≥ h93

).pyth86(

seirettabelbaegrahceR

)hAm0021(5633YA

≥ h01

).pyth02(

≥ h61

).pyth82(

CONNECTIONS AND CONTROLS

Portable CD-player EXP7361 Remote Control AY3786

1-2

1 4.5V DC jack for AC/DC adaptor power supply 2 EXT. BATT jack for external battery supply 3 LOCK•UNLOCK locks/unlocks all buttons on the set only 4 p / LINE OUT connect the remote control here and your

headphones to the remote control 5 2; switches the player on, starts or pauses CD play; stops CD play, clears a program or switches the player off. Press and hold 2; for 2 seconds to enter stop mode.

6 switches radio on/off. 7 ∞ / § skips and searches backward / forward

tracks; (FM) tunes to stations

8 • • / • • opens the CD lid 9 VOL +/– adjusts the volume 0 Rechargeable battery compartment inside the CD player

The model & serial numbers are located inside the battery compartment.

1 p 3.5mm headphone jack 2 Clip 3 LOCK•OFF locks/unlocks all buttons on the remote control 4 ∞ / § skips and searches backward / forward tracks;

(FM) tunes to stations 2; switches the player on, starts or pauses CD play; stops CD play, clears a program or switches the player off. Press and hold 2; for 2 seconds to enter stop mode. ALBUM +/– MP3/WMA-CD only:

• selects the previous or next album

• skips backward or forward

5 VOL +/– adjusts the volume 6 DBB switches the bass enhancement on/off 7 PROG programs tracks

programs FM station presets 8 MODE selects playback options; to select and enter the display function, press and hold MODE for 3 seconds.

9 Display 0 FM switches radio on/off

FEATURES

ACCESSORIES

ELBATROP-DCROFSEIROSSECCA

”7MUINAPXE“YLIMAFTCUDORP

1637PXE

c00/ 10/ z50/ 01/ 51/ 71/

00/0713YA rotpadACD/CA716019122284X

20/0713YA rotpadACD/CA676019122284X

50/0713YA rotpadACD/CA016338110413X

01/0713YA rotpadACD/CA281238110413X

51/B001WJ rotpadACD/CA168338110413X

71/0713YA rotpadACD/CA616019122284X

8623YA hcuoPgniyrraC118013110413 XXXXXX

5633YA seirettaBelbaegrahceR128488033013 XXXXXX

0833YA esaCyrettaBlanretxE162158110413 XXXXXX

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

00/1053YA ettessaCrotpadAraC950017932284 OOOOOO

00/5453YA retrevnoCCD/CDraC330019122284 OOOOOO

6873YA lortnoCetomeRDCLdroC192558033013 XXXXXX

s77/075EHCBS )gulp-S(enohpraE427100012809 XXXXXX

elbaliavalanoitpo...O,tesehthtiwdeilppus...X

ELBATROP-DCFOSERUTAEF

”7MUINAPXE“YLIMAFTCUDORP

1637PXE

snoisrevlla

KCABYALPAMW/3PM/CAA/– ● / ●

YTILIBITAPMOCELBATIRWER-DC

●

ADDCNOITCETORPPIKSCINORTCELEs371

3PMNOITCETORPPIKSCINORTCELEs574

EZISMARDPSEtibM46

EDOMEVASREWOP

●

NOITCNUFEMUSER/DLOH

● / ●

SEGATSELBERT/BBD2

KCABDEEFCITSUOCA

●

YROMEMMARGORP99

NOITCNUFEGRAHCER

●

PILCTLEB–

LORTNOCETOMERDCLDROC

●

THGILKCABYALPSID–

TUPTUOLATIGID/ENIL–/–

1-3

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.

f ATTENTION

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

d WARNUNG

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

ñ WAARSCHUWING

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

i AVVERTIMENTO

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

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified be used. Safety components are marked by the symbol

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

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

s Varning !

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

∂ Advarsel !

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

ß Varoitus !

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

ESD

SAFETY

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

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

CLASS 1

LASER PRODUCT

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

1-4

SERVICE HINTS

LEAD FREE PRODUCED SET

This set is manufactured with lead-free

production technology. This is also indicated by the PHILIPS-lead-free logo you find on the printed boards.

The set is produced with lead-free solder-alloy as well as with lead-free sub-parts. It can be considered as lead-free. Due to this fact some rules have to be respected by the workshop during a repair:

• Use only lead-free soldering-tin Philips SAC305 with order code 0622 149 00106. If lead-free solder-paste is required, please contact the manufacturer of your solder-equipment.

• Use only adequate solder tools applicable for lead-free soldering-tin.

• Adjust your solder tool so that a temperature around 217° – 220° is reached at the solder joint.

• Do not mix lead-free soldering-tin with leaded soldering-tin. This would lead to unreliable solder joints.

• On our website http://www.atyourservice.ce.philips.com you find more information to

– aspects of lead-free technology – BGA-de-/soldering, heating-profiles of BGAs used in

Philips-sets, and others

DISMANTLING CD-DOOR

To dismantle the CD-door proceed as follows:

1. Loosen screws on back side of player (2x)

2. Open CD-door

3. Lift CD-door

DISMANTLING CABINET

To dismantle the cabinet proceed as follows:

1. Dismantle CD-door

2. Loosen screws of cabinet (6x)

3. Release snaps from bottom to cabinet (8x)

4. Lift cabinet

2-1

REPAIR POSITION TOP-SIDE

To get access to the top-side of the Main Board proceed as follows:

1. Dismantle CD-door

2. Dismantle cabinet

3. Supply the unit via external DC-socket

4. To carry out measurements short-circuit door-switch or start Service Test Program → Playback Test

REPAIR POSITION BOTTOM-SIDE

To get access to the botom-side of the Main Board proceed as follows:

1. Dismantle CD-door

2. Dismantle cabinet

3. Lift printed boards and place flipped boards into cabinet

4. Position cabinet over bottom so that CD can turn without touching other parts

5. Supply the unit via external DC-socket

6. To carry out measurements short-circuit door-switch or start Service Test Program → Playback Test

REASSEMBLING THE UNIT

When reassembling the unit take care that

• the door-switch is operable

• lock switch & lock slider are in the correct position

• the battery spring contacts are not hidden behind studs

• the opening mechanism is locked

When mounting cabinet to bottom start locking snaps around the opening mechanism first.

2-2

HANDLING CHIP COMPONENTS

SERVICE TOOLS

Audio signal disc SBC429 4822 397 30184 Playability test disc SBC444A 4822 397 30245 CD-RW printed audio disc 7104 099 96611 MP3 8cm disc (for testing MP3 files, bitrates: 128; 160 and 192 kbit/s) 7104 099 28271 SubChassis 8A test disc (8cm disc) 7104 099 32841

ESD PROTECTION EQUIPMENT

ESD3 KIT 4822 310 10671

• Anti-static table mat (600x650x1.25mm)

• Anti-static wristband

• Connection box (3 press stud connections, 1MΩ)

• Extendible cable (2m, 2MΩ, to connect wristband to connection box)

• Connecting cable (3m, 2MΩ, to connect table mat to connection box)

• Earch cable (1MΩ, to connect any product to table mat or to connection box)

2-3

PIN DESCRIPTION OF INTEGRATED CIRCUITS

TEA5767HN – LOW POWER FM-TUNER

Pin Name Direction Description

1 NC1 – no connection 2 CPOUT FM-tuner → charge pump output of synthesizer PLL 3 VCOTANK1 FM-tuner → voltage controlled oscillator tuned circuit output 1 4 VCOTANK2 FM-tuner → voltage controlled oscillator tuned circuit output 2 5 VCCVCO →FM-tuner voltage controlled oscillator supply voltage 6 DGND GND digital ground 7 VDIG → FM-tuner digital supply voltage 8 DATA µP ↔ FM-tuner bus data line input/output

9 CLOCK µP → FM-tuner bus clock line input 10 NC2 – no connection 11 WRITE/READ µP → FM-tuner write/read control input for the 3-wire bus 12 BUSMODE → FM-tuner bus mode select input 13 BUSENABLE → FM-tuner bus enable input 14 SWPORT1 → FM-tuner software programmable port 1 15 SWPORT2 → FM-tuner software programmable port 2 16 XTAL1 → FM-tuner crystal oscillator input 1 17 XTAL2 → FM-tuner crystal oscillator input 2 18 PHASEDET → FM-tuner phase detector loop filter 19 PILDET → FM-tuner pilot detector low-pass filter 20 NC3 – no connection 21 NC4 – no connection 22 VAFL FM-tuner → headphone amp. left audio frequency output voltage 23 VAFR FM-tuner → headphone amp. right audio frequency output voltage 24 TMUTE → FM-tuner time constant for soft mute 25 MPXOUT FM-tuner → FM demodulator MPX signal output 26 VREF → FM-tuner reference voltage 27 TIFCENTER → FM-tuner time constant for IF centre adjust 28 LIMDEC1 → FM-tuner decoupling IF limiter 1 29 LIMDEC2 → FM-tuner decoupling IF limiter 2 30 NC5 – no connection 31 NC6 – no connection 32 IGAIN → FM-tuner gain control current for IF filter 33 AGND GND analog ground 34 VCC → FM-tuner analog supply voltage 35 RFIN1 → FM-tuner RF input 1 36 RFGND GND RF ground 37 RFIN2 → FM-tuner RF input 2 38 CAGC → FM-tuner time constant RF AGC 39 LOOPSW FM-tuner → switch output of synthesizer PLL loop filter 40 NC7 – no connection

AN8399SA – HF-PREAMPLIFIER

Pin Name Direction Description

1PD → HF-preamp input for LD output monitoring PD signals

2LD → HF-preamp external TR drive pin for driving LD

3 VCC +HF (+2.6V) power supply

4 RFN → HF-preamp RF addition amp inverting input

5 RFOUT HF-preamp → RF addition amp output

6 RFIN → HF-preamp AGC amp input

7 LDRCTL → HF-preamp LD reference voltage control pin

8 CAGC → HF-preamp AGC loop filter connection pin

9 ARF HF-preamp → RF after AGC output 10 CEA → HF-preamp capacitor for 3T-ENV detection filter connection pin 11 3TOUT HF-preamp → 3T-ENV detection output 12 CBDO → HF-preamp capacitor for low-speed dark level BDO detection connection pin 13 BDO HF-preamp → BDO detection output 14 COFTR → HF-preamp capacitor for low-speed off-track detection connection pin 15 OFTR HF-preamp → off-track detection output 16 NRFDET HF-preamp → RF signal amplitude detection information output 17 GND GND ground pin 18 SLPSW → HF-preamp sleep mode control pin 19 VREF VREF reference voltage output (VCC / 2) 20 TEN → HF-preamp TE amp inverting input 21 TEOUT HF-preamp → track error output 22 FEN → HF-preamp FE amp inverting input 23 FEOUT HF-preamp → focus error output 24 GCTL → HF-preamp gain & APC control pin 25 FBAL → HF-preamp pin to input signal for controlling focus balance adjustment 26 TBAL → HF-preamp pin to input signal for controlling tracking balance adjustment 27 E → HF-preamp satellite diode signal input 28 F → HF-preamp satellite diode signal input 29 D → HF-preamp central diode signal input 30 B → HF-preamp central diode signal input 31 C → HF-preamp central diode signal input 32 A → HF-preamp central diode signal input

3-1

+ 18 hidden pages

Philips EXP-7361 Service manual

TABLE OF CONTENTS

TECHNICAL SPECIFICATION

CONNECTIONS AND CONTROLS

FEATURES

SAFETY & WARNINGS

SERVICE HINTS

HANDLING CHIP COMPONENTS

PIN DESCRIPTION OF INTEGRATED CIRCUITS