Philips SW3800, SW3700 Service Manual
Service
Service
Active Subwoofer
Service
Service
Service
SW3700/17S
SW3800/00S
Service Manual
TABLE OF CONTENTS
SW3700 Location of PC Boards/Specifications .........1-2
SW3800 Location of PC Boards/Specifications .........1-3
Measurement Setup ...................................................1-4
ESD & Safety Instruction ............................................1-5
Disassembly Instructions & Service Positions .............. 2
Set Block & Wiring Diagram ..........................................3
Amplifier / Jack / LED Board.......................................... 4
Power & VR Board ........................................................ 5
Mechanical Exploded View & Parts List ........................ 6
Page
©
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.
Published by KC-ET0227 Service Audio Printed in The Netherlands Subject to modification
Version 1.0
GB
3139 785 30068
LOCATION OF SW3700 PC BOARDS
1-2
LED PCB
VR PCB
AMPLIFIER PCB
JACK PCB
POWER PCB
SPECIFICATIONS
SUBWOOFER
Subwoofer (not magnetically shielded design).......................................................................................................6.5"
Output Power.........................................................................................................................................50W (4Ω,DIN)
THD (Total Harmonic Distortion) ...........................................................................................................10% at 55 Hz
Reproduction Frequency Response.......................................................................................................40 Hz-150 Hz
Phase Switch....................................................................................................................................................00,180
Input Sensitivity (Subwoofer In).................................................................................................................500 mVrms
AC Power ...............................................................................................................................................120V / 60 Hz
power Consumption...........................................................................................................32 W (at 1/8 Rated Power)
Dimensions (w x h x d)....................................................................................................200 mm x 310mm x 350 mm
Weight................................................................................................................................................................6.8 Kg
0
LOCATION OF SW3800 PC BOARDS
AMPLIFIER PCB
1-3
JACK PCB
LED PCB
POWER PCB
SPECIFICATIONS
SUBWOOFER
Subwoofer (not magnetically shielded design).......................................................................................................6.5"
Output Power......................................................................................................................................1000W (4Ω,DIN)
THD (Total Harmonic Distortion) ...........................................................................................................10% at 55 Hz
Reproduction Frequency Response.......................................................................................................30 Hz-140 Hz
Phase Switch....................................................................................................................................................00,180
Input Sensitivity (Subwoofer In).................................................................................................................200 mVrms
AC Power .......................................................................................................................................220 - 240V / 50 Hz
power Consumption...........................................................................................................66 W (at 1/8 Rated Power)
Dimensions (w x h x d)....................................................................................................200 mm x 310mm x 350 mm
Weight................................................................................................................................................................6.8 Kg
0
MEASUREMENT SETUP
1-4
ESD & SAFETY INSTRUCTION
WARNING
GB
All ICs and many other semi-conductors 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 wrist wrap with resistance.
Keep components and tools also at this
potential.
F
ATTENTION
Tous les IC et beaucoup d’autres
semi-conducteurs sont sensibles aux
décharges statiques (ESD).
Leur longévité pourrait être considérablement
écourtée par le fait qu’aucune précaution n’est
prise à leur manipulation.
Lors de réparations, s’assurer de bien être relié
au même potentiel que la masse de l’appareil et
enfiler 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
Alle ICs und viele andere Halbleiter sind
empfindlich gegenüber elektrostatischen
Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kan
die Lebensdauer drastisch reduzieren.
Veranlassen Sie, dass Sie im Reparaturfall über
ein Pulsarmband mit Widerstand verbunden
sind mit dem gleichen Potential wie die Masse
des Gerätes.
Bauteile und Hilfsmittel auch auf dieses gleiche
Potential halten.
1-5
ESD
WARNUNG
WAARSCHUWING
NL
Alle IC’s en vele andere halfgeleiders zijn
gevoelig voor electrostatische ontladingen
(ESD).
Onzorgvuldig behandelen tijdens reparatie kan
de levensduur drastisch doen verminderen.
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 riparazioni occorre quindi essere
collegato allo stesso potenziale che quello della
massa dell’apparecchio tramite un braccialetto
a resistenza.
Assicurarsi che i componenti e anche gli utensili
con quali si lavora siano anche a questo
potenziale.
GB
Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified,
be used.
NL
Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in
zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen,
identiek aan de gespecificeerde, worden toegepast.
F
Les normes de sécurité exigent que l’appareil soit remis à l’état
d’origine et que soient utiliséés les piéces de rechange identiques
à celles spécifiées.
D
Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu
beachten. Der Original zustand des Geräts darf nicht verändert werden;
für Reparaturen sind Original-Ersatzteile zu verwenden.
“Pour votre sécurité, ces documents
doivent être utilisés par des spécialistes agréés, seuls habilités à réparer
votre appareil en panne”.
I
Le norme di sicurezza esigono che l’apparecchio venga rimesso
nelle condizioni originali e che siano utilizzati i pezzi di ricambio
identici a quelli specificati.
"After servicing and before returning set to customer perform a
leakage current measurement test from all exposed metal parts to
earth ground to assure no shock hazard exist. The leakage current
must not exceed 0.5mA."
2-1
2-1
DISASSEMBLY INSTRUCTIONS
Dismantling the Grill Base & Speaker Driver
1. Place the Subwoofer Box as shown in the Picture 1
For SW3700 :
a) Use a screw driver to force open the Grill Base.
Caution: Take care the surface when take out the Grill Base of Subwoofer.
For SW3800 :
a) Peel off the 4 pads "A"
b) Loosen 4 screws at the same place to remove the grille base.
Dismantling the Front Assembly
1. Place the Subwoofer Box as shown in the Picture 3 (Bottom view) and use a screw driver to force open the front assembly.
Caution: Do not break the bundle of wires to the front. Take care the surface when take out the front panel of subwoofer
SW3700 SW3800
A
SW3700
Picture 1
2. Place the Subwoofer Box as shown in the Picture 2 and loosen 4 screws "B" to remove the Speaker Driver.
B
SW3800
B
WARNING: ONLY THE LED & VR PCBS ARE BETWEEN FRONT PANEL AND WOOD BOX.
UNLESS NECCESSARY, DON’T TRY TO OPEN THE FRONT PANEL!!!
Picture 3
Dismantling the Rear assembly
1. Loosen 10 screws for SW3700 or 12 screws for SW3800 at "C" as shown in the Picture 4 (Rear View) to pull out the Printed
Circuit Board assembly.
Caution: Do not break the bundle of wires to the front.
C
C
SW3700 SW3800
Picture 2
SW3700 SW3800
Picture 4
Loading...