Philips SW3700/17S User manual

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SW3700/17S
©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
Active Subwoofer
Version 1.0
TABLE OF CONTENTS
Page
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
GB
3139 785 30068
SW3800/00S

1-2
LOCATION OF SW3700 PC BOARDS
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....................................................................................................................................................00,1800
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
LED PCB
VR PCB
POWER PCB
JACK PCB
AMPLIFIER PCB

LOCATION OF SW3800 PC BOARDS
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....................................................................................................................................................00,1800
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
1-3
LED PCB
AMPLIFIER PCB
JACK PCB
POWER PCB

MEASUREMENT SETUP
1-4

1-5
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-
listes agréés, seuls habilités à réparer
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 Grill Base & Speaker Driver
Picture 1
Picture 2 Picture 4
B
C
C
B
2-1
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.
2. Place the Subwoofer Box as shown in the Picture 2 and loosen 4 screws "B" to remove the Speaker Driver.
A
SW3700 SW3800
SW3700 SW3800
1. Place the Subwoofer Box as shown in the Picture 3 (Bottom view) and use a screw driver to force open the front assembly.
Picture 3
WARNING: ONLY THE LED & VR PCBS ARE BETWEEN FRONT PANEL AND WOOD BOX.
UNLESS NECCESSARY, DON’T TRYTO OPEN THE FRONT PANEL!!!
Caution: Do not break the bundle of wires to the front. Take care the surface when take out the front panel of subwoofer
Dismantling the Front Assembly
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.
SW3700 SW3800
SW3700 SW3800

2-2
SERVICE POSITION FOR SW3800
SERVICE POSITION FOR SW3700
2-2

3-1 3-1
BLOCK DIAGRAM

3-2 3-2
WIRING DIAGRAM

AMPLIFIER / JACK / LED BOARD
TABLE OF CONTENTS
Internal IC Diagram & Voltages............................................ 4-1
Circuit Diagram ....................................................................4-2
PCB Layout View ................................................................. 4-3
Electrical Part list ................................................................. 4-4
4-1 4-1
TDA7293 INTERNAL DIAGRAM
IN-
2
IN+
3
-
+
MUTE
STBY
4
10
9
SGND
MUTE
STBY
THERMAL
SHUTDOWN
S/C
PROTECTION
1
STBY-GND
73
14
6
158
-Vs -PWVs
BOOTSTRAP
OUT
+PWVs
+Vs BUFFER
DRIVER
11
BOOT
LOADER
12
5
CLIP DET
PIN NO.
VOLTAGE 0V 0V 0V 0V 0.3V 13.8V 29.7V
0V 0V 0V 0V 0V 0V -14.9V 0V 0V 0V15.1V 0.4V 3V -15.2V
15.5V 13.2V 0.6V 0V 29.7V 0V -29.6V-29.7V
123456789101112131415
IC501 (TDA7293)
PIN NO.
VOLTAGE
1234567891011121314
IC401 (LM324N)
PIN NO.
VOLTAGE 1.4V 4.9V 1V 0V 4.4V 4.9V 3.9V 8.8V
123456
BCE
Q301 0V 0V 0V
0V 0V 0V
0V 0V 0V
0.6V 0.7V 0V
0V 0V 0V
0V 0.4V 0V
0V 15.3V 0V
0V 0V 0V
0V 0V 0V
Q302
Q303
Q304
Q305
Q306
Q506
Q502
Q501
Location
Pin
78
IC301 (4558D)
PIN NO.
VOLTAGE 0V 0V 0V -15V 0V 0V 0V 15.2V
12345678
IC502 (4558D)
VOLTAGES

123 45 6
123 45 6
A
B
C
D
A
B
C
D
C301 D1
C302 C1
C303 A1
C304 A1
C305 A1
C306 A1
C354 B2
C351 B1
C353 B1
C355 B2
R352 B1
R353 B1
R354 B1
R355 B1
R356 B1
R357 B2
R358 B2
R359 B2
R360 B2
R361 B2
C506 B5
C507 A5
C508 A5
C509 A5
C510 A6
C510A A6
C511 B6
C512 A5
C513 A5
C514 A5
C356 B2
C358 D3
C357 B3
C359 C3
C360 C4
C361 D3
C362 D3
C363 C3
C364 C4
C365 B1
C401 A1
C402 A1
C403 A2
C404 A2
C405 A2
C406 B3
C407 B3
C410 B4
C411 B4
C412 B4
C413 B4
C414 B4
C415 B4
C418 A2
C419 A2
C501 B3
C502 A4
C503 A5
C504 B4
C505 B4
C515 A6
C517 B3
C518 A6
C905 B5
C906 B5
C907 B5
C908 B5
C909 B5
C910 B5
C913 B6
C914 B6
C915 B6
C917 B4
C919 B4
CN301 A1
CN302 B3
CN401 C2
CN501 A6
CN905 D4
D301 B2
D302 B2
D303 C3
D305 A4
D306 B4
D501 A6
DB901 B6
F902 C6
F903 B6
IC301-B B2
IC401-A A2
IC401-B A1
IC401-D B3
IC501 A5
IC502-A B5
JK301 C1
LD501 D2
Q301 B1
Q302 B1
Q303 D3
Q304 D2
Q305 C3
Q306 D4
Q501 B4
Q502 A4
R301 C1
R302 D1
R303 C1
R304 A1
R305 B1
R351 B1
R362 B2
R363 B2
R364 B3
R365 B3
R366 B3
R367 B3
R368 B3
R369 B3
R370 D2
R371 D2
R372 C3
R373 C2
R374 C2
R375 D2
R376 D3
R377 D3
R378 C3
R379 D3
R380 D3
R381 D3
R382 C3
R383 C3
R384 A1
R401 A1
R402 A1
R403 A2
R404 A2
R405 A2
R406 A2
R410 B4
R411 C4
R407 B3
R502 A4
R505 A5
R506 A5
R507 A5
R508 A5
R509 B5
R510 B5
R511 B5
R512 A4
R513 A4
R514 B4
R515 A4
R516 B4
R517 B5
R518 A5
R519 A5
R520 A5
R521 A6
R522 A6
R523 A6
R524 A6
R525 A5
R526 A5
R902 C5
R903 B5
R904 B5
R905 B5
RB301 D1
RB401 C2
RB904 C6
SW301C1
ZD301 C3
ZD901 B5
ZD902 B5
15.5V
17.4V
33.5V33.9V
0V
0V
0V
0.1V
4.9V
8V
8V
3V
0V
8V
9.3V
14.6V
2.9V
13.4V
15.2V
0.1V
15.2V
16.1V
CIRCUIT DIAGRAM
4-2 4-2

123 4
A
B
C
D
123 4
A
B
C
D
C301 C4
C302 B4
C303 A1
C304 A1
C305 B1
C306 B1
C351 B1
C352 B1
C353 B1
C354 B1
C355 C1
C356 B1
C357 C1
C358 C2
C359 C1
C360 C1
C361 D1
C362 D1
C363 C1
C364 C1
C365 B1
C401 A1
C402 A1
C403 A1
C404 A2
C405 A2
C406 A2
C407 B1
C410 B1
C411 A2
C412 B1
C413 A2
C414 A1
C415 A2
C418 A2
C419 A1
C501 B2
C502 A2
C503 A2
C504 B3
C505 B2
C506 A3
C507 A3
C508 A2
C509 A2
C510 A4
C511 B3
C512 A4
C513 A4
C514 B3
C515 A4
C517 B2
C518 A4
C905 C3
C906 C4
C907 C3
C908 D3
C909 C3
C910 B3
C913 D2
C914 C2
C915 D1
C917 B3
C919 C3
CN301 A1
CN302 B2
R373 C2
R374 C2
R375 C2
R376 C2
R377 C2
R378 C2
R379 D1
R380 C2
R381 C2
R382 C1
R383 C1
R384 B1
R385 C2
R401 A1
R402 A1
R403 A1
R404 A2
R405 A2
R406 A2
R407 B1
R410 B1
R411 A2
R501 B2
R502 B2
R505 A2
R506 A3
R507 A2
R508 B3
R509 A2
R510 A3
R511 A2
R512 B2
R513 B2
R514 B2
R515 B2
R516 B2
R517 A3
R518 A4
R519 A4
R520 A2
R521 A3
R522 A3
R523 A3
R524 B4
R525 A4
R526 B3
R902 B3
R903 C3
R904 B3
R905 B3
RB301 B4
RB401 D2
RB401A D1
RB904 D2
SW301 B4
ZD301 C1
ZD901 B3
ZD902 C3
CN401 B2
CN501 B4
CN511 D3
CN905 D2
D301 B1
D302 B1
D303 C2
D304 D1
D305 B3
D306 B3
D501 A3
DB901 C3
F902 D3
F903 D3
IC301 C1
IC401 A1
IC501 A3
IC502 B2
JK301 C4
JW101 C3
JW102 C3
JW103 C4
JW104 B3
JW105 B3
JW106 B3
JW107 B3
JW109 A3
JW110 A3
JW111 B3
JW113 A4
JW114 C3
LD501A D1
Q301 B1
Q302 B1
Q303 C2
Q304 C2
Q305 C1
Q306 D2
Q501 B2
Q502 B2
R301 B4
R302 B4
R303 B4
R304 A1
R305 B1
R351 B1
R352 B1
R353 B1
R354 B1
R355 B1
R356 B1
R357 B1
R358 C1
R359 B1
R360 C1
R361 B1
R362 C1
R363 C1
R364 C1
R365 C1
R366 C1
R367 C1
R368 C1
R369 C2
R371 C2
R372 C1
LVM0199C021
PCB LAYOUT VIEW
4-3 4-3

4-44-4
MISCELLANEOUS
F902 4822 070 34002
!
FUSE T4A 250V SLOW /00S
F902 9965 000 14288
!
FUSE T4A 250V SLOW /17S
F903 4822 070 34002
!
FUSE T4A 250V SLOW /00S
F903 9965 000 14288
!
FUSE T4A 250V SLOW /17S
JK301 4822 267 41238 JACK 1T GREEN
SW301 4822 277 11821 SLIDE SWITCH
CAPACITORS
C301 4822 122 33293 100pF 5% 50V
C302 4822 124 21913 1uF 20% 63V
C303 4822 124 21913 1uF 20% 63V
C304 4822 124 21913 1uF 20% 63V
C305 9965 000 08287 0,22uF 100V 5%
C306 9965 000 08287 0,22uF 100V 5%
C351 4822 124 22652 2,2uF 20% 50V
C352 2038 554 00065 100nF +80/-20% Y5V 50V
C353 9965 000 12614 47pF 50V 5%
C354 9965 000 12522 4,7uF 50V 20%
C355 9965 000 12614 47pF 50V 5%
C356 9965 000 12559 100uF 16V 20%
C357 9965 000 12558 220uF 16V 20%
C358 9965 000 14298 22uF 50V 20%
C359 2038 554 00065 100nF +80/-20% Y5V 50V
C360 9965 000 12558 220uF 16V 20%
C361 9965 000 12530 1000uF 25V 20% D=10
C362 9965 000 14299 0,02uF 50V + 80-20%
C363 9965 000 12522 4,7uF 50V 20%
C364 2038 554 00065 100nF +80/-20% Y5V 50V
C365 4822 124 23056 47uF 20% 16V
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 4822 124 23056 47uF 20% 16V
C411 4822 124 23056 47uF 20% 16V
C412 4822 122 30103 22nF 80% 63V
C413 4822 122 30103 22nF 80% 63V
C414 9965 000 12613 0,22uF 50V +80-20%
C415 9965 000 12613 0,22uF 50V +80-20%
C418 9965 000 14300 200pF 50V 10%
C419 9965 000 14300 200pF 50V 10%
C501 4822 124 22652 2,2uF 20% 50V
C502 4822 124 22652 2,2uF 20% 50V
C503 4822 124 22652 2,2uF 20% 50V
C504 4822 124 40248 10uF 20% 63V
C505 4822 124 40248 10uF 20% 63V
C506 5322 121 42578 100nF 5% 250V
C507 9965 000 14301 0,001uF 100V 5%
C508 9965 000 14302 30pF 50V 5%
C509 4822 122 33293 100pF 5% 50V
C510 5322 121 42578 100nF 5% 250V
C511 5322 124 41945 22uF 20% 35V
C512 5322 124 41945 22uF 20% 35V
C513 5322 124 41945 22uF 20% 35V
C514 4822 124 40248 10uF 20% 63V
C515 4822 124 40248 10uF 20% 63V
C517 9965 000 08287 0,22uF 100V 5%
C518 5322 124 41945 22uF 20% 35V
C905 9965 000 14303 4700uF 63V 20%
C906 9965 000 14303 4700uF 63V 20%
C907 2038 554 00065 100nF +80/-20% Y5V 50V
C908 2038 554 00065 100nF +80/-20% Y5V 50V
C909 2038 554 00065 100nF +80/-20% Y5V 50V
C910 2038 554 00065 100nF +80/-20% Y5V 50V
C913 9965 000 11041 0,01uF 500V 20%
C914 9965 000 11041 0,01uF 500V 20%
C915 2038 554 00065 100nF +80/-20% Y5V 50V
C917 4822 124 40207 100uF 20% 25V
C919 4822 124 40207 100uF 20% 25V
RESISTORS
R301 9965 000 12516 12K 1/6W 5% CF
R302 9965 000 12520 6,8K 1/6W 5% CF
R303 4822 050 21003 10K 1% 0,6W
R304 9965 000 12520 6,8K 1/6W 5% CF
R305 4822 050 24703 47K 1% 0,6W
R351 4822 050 21004 100K 1% 0,6W
R352 4822 050 21004 100K 1% 0,6W
R353 9965 000 09725 4,7K 1/6W 5% CF
R354 9965 000 12621 2K 1/6W 5%
R355 9965 000 12622 2,2M 1/6W 5%
R356 4822 050 21003 10K 1% 0,6W
R357 9965 000 14306 56R 1/6W 5% CF
R358 9965 000 12624 270K 1/6W 5%
R359 9965 000 12624 270K 1/6W 5%
R360 4822 050 21003 10K 1% 0,6W
R361 4822 050 21003 10K 1% 0,6W
R362 9965 000 12519 1K 1/6W 5% CF
R363 9965 000 12625 560K 1/6W 5%
R364 9965 000 08284 220K 1/6W 5% CF
R365 9965 000 12626 1M 1/6W 5%
R366 9965 000 12627 680K 1/6W 5%
R367 9965 000 12628 82K 1/6W 5%
R368 9965 000 12627 680K 1/6W 5%
R369 4822 050 21003 10K 1% 0,6W
R370 4822 050 21003 10K 1% 0,6W
R371 4822 050 21003 10K 1% 0,6W
R372 4822 050 25601 560R 1% 0,6W
R373 4822 050 21502 1,5K 1% 0,6W
R374 9965 000 12515 2,2K 1/6W 5% CF
R375 9965 000 12519 1K 1/6W 5% CF
R376 4822 050 21003 10K 1% 0,6W
R377 4822 050 23303 33K 1% 0,6W
R378 4822 050 23303 33K 1% 0,6W
R379 9965 000 14201 100R 1/4W 5% CF
R380 4822 050 21003 10K 1% 0,6W
R381 9965 000 12628 82K 1/6W 5%
R382 9965 000 09729 820R 1/6W 5% CF
R383 4822 050 21001 100R 1% 0,6W
R384 9965 000 12519 1K 1/6W 5% CF
R401 9965 000 12631 180K 1/6W 5%
R402 4822 050 21003 10K 1% 0,6W
R403 9965 000 08285 18K 1/6W 5% CF
R404 4822 050 21504 150K 1% 0,6W
R405 9965 000 09724 3,9K 1/6W 5% CF
R406 9965 000 08285 18K 1/6W 5% CF
R407 9965 000 09725 4,7K 1/6W 5% CF
R410 4822 050 21001 100R 1% 0,6W
R411 4822 050 21001 100R 1% 0,6W
R501 9965 000 08285 18K 1/6W 5% CF
R502 9965 000 12519 1K 1/6W 5% CF
R505 9965 000 09725 4,7K 1/6W 5% CF
R506 9965 000 14307 39K 1/6W 5% CF
R507 9965 000 12561 200K 1/6W 5% CF
R508 9965 000 12626 1M 1/6W 5%
R509 4822 050 21003 10K 1% 0,6W
R510 4822 050 24703 47K 1% 0,6W
R511 9965 000 12626 1M 1/6W 5%
R512 4822 050 22203 22K 1% 0,6W
R513 9965 000 12519 1K 1/6W 5% CF
R514 9965 000 14308 120R 1/6W 5% CF
R515 4822 050 21003 10K 1% 0,6W
R516 4822 050 21003 10K 1% 0,6W
R517 4822 050 22203 22K 1% 0,6W
R518 4822 050 25601 560R 1% 0,6W
R519 4822 050 21003 10K 1% 0,6W
R520 4822 050 24703 47K 1% 0,6W
R521 4822 050 22203 22K 1% 0,6W
R522 4822 050 23303 33K 1% 0,6W
R523 4822 050 21003 10K 1% 0,6W
R524 4822 116 81753 4,7R 5% 0,5W
R525 4822 050 22203 22K 1% 0,6W
R526 4822 050 21003 10K 1% 0,6W
R902 9965 000 09718 1K 2W 5% METAL FIL
R903 9965 000 09718 1K 2W 5% METAL FIL
R904 9965 000 09725 4,7K 1/6W 5% CF
R905 9965 000 09725 4,7K 1/6W 5% CF
DIODES
D301 4822 130 30621 1N4148
D302 4822 130 30621 1N4148
D303 4822 130 30621 1N4148
D304 4822 130 31438 1N4001G
D305 4822 130 30621 1N4148
D306 4822 130 30621 1N4148
D501 4822 130 30621 1N4148
DB901 4822 130 70035 RS402L
LD501A 9965 000 14305 LED GREEN/ORANGE
ZD301 9965 000 12635 ZENER 9,1-9,5V 0,5W
ZD901 4822 130 34281 BZX79-B15
ZD902 4822 130 34281 BZX79-B15
TRANSISTORS & INTEGRATED CIRCUITS
IC301 4822 209 83631 NJM4558DD
IC401 4822 209 80587 LM324N
IC501 9965 000 14304 TDA7293
IC502 4822 209 83631 NJM4558DD
Q301 4822 130 41198 2SC945P
Q302 4822 130 41198 2SC945P
Q303 4822 130 41198 2SC945P
Q304 4822 130 41198 2SC945P
Q305 4822 130 41198 2SC945P
Q306 4822 130 41198 2SC945P
Q501 4822 130 41198 2SC945P
Q502 4822 130 41198 2SC945P
Note: Only the parts mentioned in this list are normal service spare
parts.
ELECTRICAL PARTS LIST - AMPLIFIER, JACK AND LED BOARD ELECTRICAL PARTS LIST - AMPLIFIER, JACK AND LED BOARD

POWER & VR BOARD
TABLE OF CONTENTS
Power PCB schematic and Layout View .......................................5-2
VR PCB schematic and Layout View.............................................5-3
Electrical Parts List.........................................................................5-4
5-1

C901 A2
CN901 A1
D901 B2
D902 B1
D903 B2
F901 A2
RB902 B1
RB905 B1
RL901 B2
T902 B2
C901 B2
CN901 B2
D901 A1
D902 A1
D903 B1
F901 B2
RB902 A2
RB905 B1
RL901 B1
T902 A1
12
1
12
12
2
A
B
B
A
B
A
A
B
5-2
POWER SCHEMATIC DIAGRAM
POWER PCB LAYOUT VIEW

12
A
B
A
B
12
RB401 A2
VR401 A1
RB401 A1
VR401 A1
5-3
VR SCHEMATIC DIAGRAM
VR PCB LAYOUT VIEW

MISCELLANEOUS
CN901 9965 000 12636 CONNECTOR 4 PIN P=3,96MM
F901 9965 000 12638
!
FUSE T2A 250V SLOW /00S
F901 9965 000 14309
!
FUSE T2A 250V SLOW /17S
RB902 9965 000 12636 CONNECTOR 4 PIN P=3,96MM
RL901 9965 000 09708
!
RELAY GJ-SH-112DM 320R
T902 9965 000 12603
!
TRANSFORMER 230V 50HZ EI28 /00S
T902 9965 000 12602
!
TRANSFORMER 120V 60HZ EI28 /17S
CAPACITORS
C901 9965 000 12604 0,01uF 20%
RESISTORS
VR401 9965 000 14314 CONTROL ROTARY 50KB /00S
VR401 9965 000 14310 CONTROL ROTARY 50KB /17S
DIODES
D901 4822 130 31438 1N4001G
D902 4822 130 31438 1N4001G
D903 4822 130 31438 1N4001G
Note: Only the parts mentioned in this list are normal service spare
parts.
ELECTRICAL PARTS LIST - POWER & VR BOARD
5-4

SW3700 Exploded Drawing
6-1 6-1

SW3800 Exploded Drawing
6-2 6-2

6-3
FOR SW3700/17S ONLY
MECHANICAL PARTS LIST
1 9965 000 14284 VOLUME KNOB
2 9965 000 14285 FRONT CAB
9 9965 000 03360 FOOT
10 9965 000 14295 PORT
11 9965 000 03365 CLOTH (185 X 185MM)
12 4822 532 13065 WASHER
13 9965 000 08278 SPEAKER DRIVER 100W 6,5 4OHM
28 9965 000 14296
!
MAINS CORD /17S
29 9965 000 07092 BUSHING
42 9965 000 14297
!
POWER TRANSFORMER
45 4822 458 10658 SPEAKER GRILLE
Note: Only the parts mentioned in this list are normal service spare
parts.
SCREW LIST
5 D3 x 6
6 M4 x 25
8 D3,5 x 14
19 D3 x 8
20 M3 x 14
25 D3 x 10
26 M2 x 6
27 D3 x 8
31 D3 x 10
37 D3 x 22
FOR SW3800/00S ONLY
MECHANICAL PARTS LIST
1 9965 000 12141 VOLUME KNOB
2 9965 000 12142 BAR TRIM (LENS)
3 9965 000 14312 FRONT CABINET
4 9965 000 12144 WOOX SPEAKER
9 9965 000 09700 FOOT
14 9965 000 09702 RUBBER PAD
15 4822 532 13065 WASHER
17 9965 000 08278 SPEAKER DRIVER 100W 6,5" 4OHM
31 9965 000 12443
!
MAINS SOCKET
48 9965 000 14313
!
POWER TRANSFORMER
51 9965 000 12820
!
MAINS CORD
Note: Only the parts mentioned in this list are normal service spare
parts.
SCREW LIST
6 D3 x 6
7 D3 x 8
10 D3,5 x 16
12 D4 x 28
13 M4 x 25
20 D3,5 x 28
24 D3 x 10
26 D3 x 8
36 M3 x 12
37 M3 x 22
38 M2 x 6
39 D3 x 10
40 M3 x 8
45 M3 x 14