Philips SW3660/00 User manual

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Service
Service
Service
Service
Service
SW3660/00
©Copyright 2003 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 BB-ET0326 Service AudioPrinted in The Netherlands Subject to modification
Active Subwoofer
Version 1.0
TABLE OF CONTENTS Page
Location of PC Boards...............................................1-2
Specifications..............................................................1-2
Measurement Setup ...................................................1-3
ESD & Safety Instruction............................................1-4
Disassembly Instructions & Service Positions ..............2
Set Block & Wiring Diagram ..........................................3
Amplifier, JACK & LED/VR Boards ...............................4
Mechanical Exploded View & Parts List........................5
GB
3139 785 30420

1-2
LOCATION OF PC BOARDS
SPECIFICATIONS
SUBWOOFER
Subwoofer (not magnetically shielded design)........................................................................................................6.5"
Output Power...........................................................................................................................................40W (4 Ω,DIN)
THD (Total Harmonic Distortion) .............................................................................................................10% at 55Hz
Reproduction Frequency Response..........................................................................................................37Hz-145 Hz
Phase Switch....................................................................................................................................................00, 1800
Input Sensitivity (Subwoofer In)......................................................................................................................460 mVrms
AC Power ..............................................................................................................................220 - 240V / 50 - 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................................................................................................................................................................6.5 Kg

1-3
MEASUREMENT SETUP

1-4
GB
WARNING
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.
ESD
D
WARNUNG
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.
NL
WAARSCHUWING
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.
“Pour votre sécurité, ces documents
doivent être utilisés par des spécia-
listesagréés,seulshabilitésàréparer
votre appareil en panne”.
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.
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."
ESD & SAFETY INSTRUCTION

DISASSEMBLY INSTRUCTIONS
2-1
Dismantling the Speaker Grille & Speaker Driver
1. Place the Subwoofer Box as shown in the Picture 1 and
use a screw driver to force open the Speaker Grille.
Caution: Take care the surface when take out the
Speaker Grille of Subwoofer
2. Place the Subwoofer Box as shown in the Picture 2
and loosen 4 screws A to remove the Speaker Driver.
Dismantling the Front Assembly
1. Place the Subwoofer Box as shown in the Picture 3
and use a screw driver to force open the front assembly.
Dismantling the Rear assembly
1. Loosen 10 screws B 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.
Take care the surface when take out the front
panel of subwoofer
Caution: Do not break the bundle of wires to the front.
Picture 4
Picture 3
WARNING: THERE IS ONLY A LED BETWEEN
THE FRONT PANEL AND WOOD BOX. IF NOT
NECCESSARY, PLEASE DON’T TRY TO OPEN
THE FRONT PANEL!!!
A
Picture 2
Picture 1
B

2-2
SERVICE POSITION

3-1 3-1
BLOCK DIAGRAM
PHASE CHANGE
SWITCH
VOL
CONTROL
STAND-BY
SW

PROTECTION
CIRCUIT
POWER ON/OFF
DELAT CIRCUIT
POWER SUPPLY
DC:+/-25V
SUBWOOFER SPK DRIVER
RELAY 
& DRIVER
POWER
AMP
PRE AMP
INPUT
HPF LPF
LED

3-2 3-2
WIRING DIRGRAM

AMPLIFIER, JACK & LED / VR
BOARD
TABLE OF CONTENTS
Internal IC Diagram............................................................. 4-1
Circuit Diagram ....................................................................4-2
PCB Layout View .................................................................4-3
Electrical Parts list ...............................................................4-4
4-1 4-1
TDA7296 INTERNAL IC DIAGRAM
IN +
IN -
BOOTRAP
+ VS
BOOTRAP
OUTPUT
- VS
Bipolar
Transconductance
Input Stage
MOS Gain &
Level Shifting
Stage
MOS Output
Stage
Shot circuit
Protection
+
+
+
-

4-2 4-2
CIRCUIT DIAGRAM
12 34
12 34
A
B
A
B
C301 B1
C303 B1
C304 B1
C305 A1
C306 B1
C307 B1
C401 B1
C402 A1
C403 B1
C404 A1
C405 A2
C406 A2
C407 A2
C410 A1
C411 A1
C412 A1
C413 A1
C414 A1
C415 A1
C501 A2
C509 A2
C510 A3
C511 B3
C512 A3
C513 A3
C514 B3
C515 A3
C516 A3
C517 A2
C518 A4
C519 A4
C520 B4
C521 B4
C522 B4
C900 B4
C901 B3
C902 B3
C903 B3
C904 B3
C905 B3
C906 B3
C907 B3
C908 B3
C909 B3
C910 B3
C911 B3
C912 B3
C913 B3
C914 B4
C915 B4
CN301 A1
CN401 A2
CN501 A4
CN901 B4
D501 A4
D503 A3
D901 B3
D902 B3
D903 B3
D904 B3
F901 B4
F902 B4
IC401/A A2
IC401/B A1
IC401/C A1
IC502 A3
JK301 B1
LD401 B3
Q352 B2
Q501 A4
Q502 A4
Q503 A3
Q504 A4
Q505 A4
R301 B1
R302 B1
R303 B1
R304 B1
R366 B1
R367 B1
R368 B2
R369 B2
R370 B2
R371 B2
R372 B2
R373 B2
R401 A1
R402 B1
R403 A1
R404 A1
R405 A1
R406 A2
R407 A2
R410 A1
R411 A1
R514 B3
R515 B3
R516 A3
R518 A3
R519 A3
R520 A3
R521 A3
R522 A3
R523 A3
R524 A3
R525 A4
R526 A4
R527 A4
R528 A4
R529 A4
R530 B4
R531 B4
R532 B4
R533 A3
R901 B4
R902 B3
RB301 B1
RB401 B2
RB402 B2
RB901 B4
RL501 A4
SW301 B1
SW901 B4
T901 B4
VR401 B2
ZD901 B3
ZD902 B3
PIN NO.
VOLTAGE 0V 0V 0V 0V 0V 15.4V 26.2V
0V 0V 0V 13.4V 0V 0V0V0V 0V 0V -13.3V 0V 0V -12V
9.3V 8.9V 0V0V 26.3V 0V -26.3V-26.3V
12345678910111213 1514
IC502 (TDA7296)
PIN NO.
VOLTAGE
1234567891011121314
IC401 (TL074CN)
Transistor
BCE
Q352 0V 2.1V 0V
1.32V 0.8V 0.74V
0.7V 0.8V 0V
0V 11V 0V
0V 1.3V 0V
0V 1.3V 0V
Q501
Q502
Q503
Q504
Q505
Location
Pin

4-3 4-3
PCB LAYOUT VIEW
A
123 45 6 7
7
123 45 6
B
C
D
A
B
C
D
C519 B4
C520 C4
C521 C4
C522 B5
C901 C2
C902 C2
C903 C2
C904 C2
C905 D2
C906 C2
C301 C6
C303 C5
C304 A1
C305 A1
C306 B1
C307 B1
C401 A1
C402 A1
C403 A2
C404 A2
C405 A2
C406 B2
C407 B2
C410 A2
C411 B1
C412 A2
C413 B1
C414 A2
C415 B1
C501 A3
C509 A2
C510 B3
C511 B4
C512 A4
C513 A4
C514 A4
C515 A5
C516 C3
C517 B2
C518 B4
C907 D3
C908 C2
C909 C3
C910 B1
C911 C3
C912 B1
C913 D1
C914 D2
C915 D2
CN301 B1
R371 B3
R372 B3
R373 B3
R401 A1
R402 A1
R403 A2
R404 A2
R405 A2
R406 B2
R407 B2
CN401 B3
CN501 D3
CN901 D1
D501 D4
D503 B4
D901 D2
D902 C2
D903 C2
D904 C2
F901 C1
F902 C1
IC401 A1
IC502 A3
J103 C2
J104 D2
J105 D2
J106 D3
J109 C3
J501 A3
J502 B3
J503 B3
J504 B4
J505 B4
J506 A4
JK301 B6
Q352 B3
Q501 D4
Q502 D4
Q503 B4
Q504 C4
Q505 C4
R301 C6
R302 B5
R303 C5
R304 A1
R366 B3
R367 B3
R368 B3
R369 B3
R370 B3
R410 A3
R411 B1
R514 B3
R515 B4
R516 B3
R518 A4
R519 A4
R520 A3
R521 B5
R522 B4
R523 B4
R524 C3
R525 D3
R526 C4
R527 C4
R528 C4
R529 D4
R530 C4
R531 C4
R532 C4
R533 A4
R901 C3
R902 B2
RB301 C5
RL501 C4
SW301 B5
ZD901 C3
ZD902 B2
P401 B7
RB401 B7
RB402 A7
TP401 A7
TP402 B7
LD401 A7
VR401 A7
LVA0031C001
LVA100031-0001
LVA100031-0021
LVA100031-0011
LVA000364-0031
LVA000364-0001
LVA000364-0001
C914 C915

4-4 4-4
MISCELLANEOUS
ELECTRICAL PARTS LIST - AMPLIFIER, JACK SWITCH, LED & VR BOARDS ELECTRICAL PARTS LIST - AMPLIFIER, JACK SWITCH, LED & VR BOARDS
CN901 9965 000 12617
!
CONNECTOR 3P PITCH=3.96mm
F901 9965 000 20663
!
FUSE 4A 250V SLOW
F902 9965 000 20663
!
FUSE 4A 250V SLOW
JK301 4822 267 41238 RCA JACK 1P
LD401 9965 000 19944 LED 3 DIA GREEN/RED
RL501 9965 000 15937 RELAY
SW301 4822 277 11821 SLIDE SWITCH
VR401 9965 000 19945 CONTROL ROTARY 50K OHM B
CAPACITORS
C301 4822 122 33293 100pF 5% 50V
C303 4822 124 21913 1uF 20% 63V
C304 4822 124 21913 1uF 20% 63V
C305 4822 124 21913 1uF 20% 63V
C306 9965 000 16360 COND MYLAR 0.22uF 100V 5%
C307 9965 000 16360 COND MYLAR 0.22uF 100V 5%
C401 4822 122 33293 100pF 5% 50V
C402 4822 121 41935 12nF 5% 250V
C403 5322 121 42662 68nF 5% 250V
C404 5322 121 42662 68nF 5% 250V
C405 5322 121 42489 33nF 5% 250V
C406 4822 121 42077 6,8nF 10% 400V
C407 4822 124 21913 1uF 20% 63V
C410 9965 000 19946 COND ELECT 47uF 16V 20%
C411 9965 000 19946 COND ELECT 47uF 16V 20%
C412 4822 122 30103 22nF +80/-20% 63V
C413 4822 122 30103 22nF +80/-20% 63V
C414 9965 000 19962 COND DISC 0.22uF 50V +80/-20%
C415 9965 000 19962 COND DISC 0.22uF 50V +80/-20%
C501 9965 000 16318 COND ELECT 2.2uF 50V 20%
C509 4822 122 33293 100pF 5% 50V
C510 5322 122 32331 1nF 10% 100V
C511 9965 000 16324 COND ELECT 22uF 25V 20%
C512 9965 000 16324 COND ELECT 22uF 25V 20%
C513 9965 000 16324 COND ELECT 22uF 25V 20%
C514 9965 000 16356 COND ELECT 10uF 50V 20%
C515 9965 000 16356 COND ELECT 10uF 50V 20%
C516 5322 121 42578 100nF 5% 250V
C517 9965 000 16360 COND MYLAR 0.22uF 100V 5%
C518 9965 000 16327 COND ELECT 100uF 25V 20%
C519 9965 000 16317 COND ELECT 100uF 16V 20%
C520 9965 000 16356 COND ELECT 10uF 50V 20%
C521 9965 000 16323 COND ELECT 47uF 25V 20%
C522 9965 000 16323 COND ELECT 47uF 25V 20%
C900 9965 000 15941 COND SAFTY 0.01uF 250V 20%
C901 4822 122 30103 22nF +80/-20% 63V
C902 4822 122 30103 22nF +80/-20% 63V
C903 4822 122 30103 22nF +80/-20% 63V
C904 4822 122 30103 22nF +80/-20% 63V
C905 9965 000 19963 COND ELECT 3300uF 35V 20%
C906 9965 000 19963 COND ELECT 3300uF 35V 20%
C907 2038 554 00065 100nF +80/-20% Y5V 50V
C908 2038 554 00065 100nF +80/-20% Y5V 50V
C909 9965 000 16317 COND ELECT 100uF 16V 20%
C910 9965 000 16327 COND ELECT 100uF 25V 20%
C911 2038 554 00065 100nF +80/-20% Y5V 50V
C912 2038 554 00065 100nF +80/-20% Y5V 50V
C913 2038 554 00065 100nF +80/-20% Y5V 50V
C914 9965 000 20664 CONDDISC 0.022uF 100V +80/-20%
C915 9965 000 20664 CONDDISC 0.022uF 100V +80/-20%
RESISTORS
R301 4822 050 21003 10k 1% 0,6W
R302 4822 050 25602 5k6 1% 0,6W
R303 4822 050 21003 10k 1% 0,6W
R304 4822 050 26202 6k2 1% 0,6W
R366 4822 050 21003 10k 1% 0,6W
R367 4822 050 21001 100R 1% 0,6W
R368 4822 050 21003 10k 1% 0,6W
R369 4822 050 21502 1k5 1% 0,6W
R370 4822 050 21502 1k5 1% 0,6W
R371 4822 050 22203 22k 1% 0,6W
R372 4822 050 25602 5k6 1% 0,6W
R373 4822 050 22702 2k7 1% 0,6W
R401 4822 050 21504 150k 1% 0,6W
R402 4822 050 21003 10k 1% 0,6W
R403 4822 050 24703 47k 1% 0,6W
R404 9965 000 19964 RESISTOR 68k OHM 1/6W 5% CF
R405 4822 050 21503 15k 1% 0,6W
R406 9965 000 19964 RESISTOR 68k OHM 1/6W 5% CF
R407 4822 050 22203 22k 1% 0,6W
R410 4822 050 21001 100R 1% 0,6W
R411 4822 050 21001 100R 1% 0,6W
R514 4822 050 21003 10k 1% 0,6W
R515 4822 050 23303 33k 1% 0,6W
R516 4822 050 22203 22k 1% 0,6W
R518 4822 050 25601 560R 1% 0,6W
R519 4822 050 22203 22k 1% 0,6W
R520 4822 050 22203 22k 1% 0,6W
R521 4822 050 22203 22k 1% 0,6W
R522 4822 050 21003 10k 1% 0,6W
R523 4822 050 23303 33k 1% 0,6W
R524 4822 116 81753 4R7 5% 0,5W
R525 9965 000 19965 RESISTOR 390 OHM 1/2W 5% CF
R526 9965 000 19966 RESISTOR 3.3k OHM 1/6W 5% CF
R527 9965 000 19967 RESISTOR 330k OHM 1/6W 5% CF
R528 4822 050 21004 100k 1% 0,6W
R529 9965 000 19964 RESISTOR 68k OHM 1/6W 5% CF
R530 9965 000 19966 RESISTOR 3.3k OHM 1/6W 5% CF
R531 9965 000 19966 RESISTOR 3.3k OHM 1/6W 5% CF
R532 4822 050 21004 100k 1% 0,6W
R533 4822 050 21003 10k 1% 0,6W
R901 9965 000 19968 RESISTOR 330 OHM 1/2W 5% CF
R902 9965 000 19969 RESISTOR 560 OHM 1/2W 5% CF
DIODES
D501 4822 130 31438 1N4001G
D503 4822 130 30621 1N4148
D901 9965 000 19970
!
DIODE 1N5392 1.5A 100V
D902 9965 000 19970
!
DIODE 1N5392 1.5A 100V
D903 9965 000 19970
!
DIODE 1N5392 1.5A 100V
D904 9965 000 19970
!
DIODE 1N5392 1.5A 100V
ZD901 9965 000 19971 DIODE ZENR 13.5-14.0V 0.5W
ZD902 9965 000 19971 DIODE ZENR 13.5-14.0V 0.5W
TRANSISTORS & INTEGRATED CIRCUITS
Q352 4822 130 41198 2SC945P
Q501 4822 130 41198 2SC945P
Q502 4822 130 41198 2SC945P
Q503 4822 130 41198 2SC945P
Q504 4822 130 41198 2SC945P
Q505 4822 130 41198 2SC945P
IC401 4822 209 32742 TL074CN
IC502 4822 209 16935 TDA7296
Note : Only the parts mentioned in this list are normal service
spare parts.

SW3660 Exploded Drawing
5-1 5-1

5-2 5-2
MECHANICAL & ACCESSORIES PARTS LIST - MAIN UNIT
SCREW LISTS - MAIN UNIT
5 D3 x 8
9 M4 x 25
10 D3.5 x 14
16 M3 x 8
17 M3 x 14
25 M2 x 6
26 D3 x 10
39 M3 x 12
1 9965 000 19938 VOLUME KNOB
2 9965 000 19939 FRONT CABINET
6+7 9965 000 19940 PORT TUBE & NET CLOTH ASSEMBLY
11 9965 000 15951 FOOT
28 9965 000 20576
!
AC SOCKET SO-222-PC-S (TECX)
29 9965 000 15949 SPEAKER GRILLE
30 9965 000 19942 SPEAKER DRIVER 40W 6.5" 4 OHM
31 4822 532 13065 SPEAKER SPONGE
33 9965 000 20661
!
POWER TRANSFORMER EI-66 230V 40W
38 9965 000 20662
!
SW ROCKER 16A/250V
9965 000 16314 RCA CABLE 3000mm BLK D2.44mm
9965 000 15983
!
MAINS CORD (For /21H version)
9965 000 18375
!
MAINS CORD (For /30 version)
Note : Only the parts mentioned in this list are normal service spare
parts.