Service Manuals, User Guides, Schematic Diagrams or docs for : ONKYO Audio SKW204 Onkyo-SKW204 actsub
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SKW-204
Ref. No. 3946
052006
SERVICE MANUAL
POWERED SUBWOOFER
MODEL SKW-204(B)/(S)/(Y)
Black, Silver and Yellow models
B MDC 120V AC, 60Hz S MPA 230-240V AC, 50Hz
B MPP 230-240V AC, 50Hz S MWT 120/220-240V AC, 50/60Hz
S MPP 230-240V AC, 50Hz Y MWT 120/220-240V AC, 50/60Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
SKW-204
A05a
EXPLODED VIEWS-1 S901 x 2 pcs. U04 (VOLTAGE SELECTOR PC BOARD) : MWT type only.
AMPLIFIER SECTION F902
A103
P901 U04
SP11
x 10 pcs. A05
A05 x 4 pcs. U05
x 2 pcs.
A102 A02
A04
A103 A03
U02
A05 A101
A08 SP12 Refer to "EXPLODED VIEWS-2"
x 2 pcs. x 2 pcs. x 4 pcs.
Q516 SP13
U06 A07 A05 x 2 pcs.
A06
Q541
U03
A02
T901
Q515
A07
A01
F901
A11
U01
A05
x 5 pcs.
F901C (LABEL) : MPP/MPA type only.
SKW-204
Part No. (SN) ---> Refer to
F901C
"PRINTED CIRCUIT BOARD PARTS LIST".
SKW-204
EXPLODED VIEWS-2
SPEAKER SECTION
SP01a - c
SP07a / b
SP06 SP04
x 6 pcs.
SP08 SP09a - c
SP02
x 4 pcs.
SP04
x 4 pcs.
SP05a / b SP11
x 2 pcs.
SP03
x 4 pcs.
SKW-204
SKW-204
A B C D
SCHEMATIC DIAGRAM NAAF-8829 NAAF-8830 R101
FOR SKW-204AMP 20K
S101
U01 MAIN PC BOARD PHASE SWITCH
OFF ON
LINE INPUT Q301(1/2)
P301 NJM4558LD
1 R301 8
3 1 R307
1K
220*
FOR SKW-540AMP
C302 2
C955 (PP/PA/WT) 224 47/50 4
R302
C301
R305
J316
R315
NC
R306
47K
223J
20K
3.3K
22K* Q302(2/2)
R303
NJM4558LD
47K
E801 R313 R316
C303 10K 5 8 C314
R304
2.2K*
NC 3.3K 4
7 47/16
2
100/25 C312 6
1
OUTPUT C311 3 8 334J 4
R312
R311
100K
100K
LEVEL Q302(1/2)
R314
3.3K
NJM4558LD
C313
124
J317
FOR SKW-204AMP
2
R505 R506 R511 R51
1K 1K 82 Q509 82
(1/4W) (1/4W) (1/4W) 2SA949-Y (1
Q505
NC : No mount of parts. 2SA949-Y
C506
070
Q501 Q502
2SC2240-BL 2SC2240-BL
C501 R501 0 C505
R951
47/50 1K 020
3.3K (2W) C503
MTZJ15C MTZJ15C
C951 R502 224J -0.6 R507
D951
C502
47K R515
NC
P501B
220/16 POWER NEED TO CONFIRM R521 R522 33K 12K
3
NC
220 220 Q507
2SA949-Y R516
D952
C952 R509 0 12K
R503
220/16 5.6K 1K
R952 2SC2229-Y
R508
12K (1/2W)
3.3K (2W) R527 47
Q503
2SC2240-BL 270 (1/4W) Q510
R510
R651
100K
MTZJ5.6B
C527 Q506
D501
1/50 C504 2SC2229-Y
R504
1SS133
220/16 R512 R51
D651
2.2K 82
68
(1/4W)
2SA933S
Q604
C601
10/50
4
5.
R601
5.6K
Q301(2/2)
NJM4558LD Q606
8 D603 Q603 KRA103M 5.0 R624
5 2SC1740S-S
1SS133 100K
7 R610
6 R619 P631
R605 560K
R611
820K
22 22K
4 R623 0.05
R609
Q607
39K
470/16
C603
R603 2SA933S 100K 0.6 R627
150K 470K 680K
Q608
P633
R620 Q605
NC
R613 2SC1740S-S
D601 D602 Q602 120K 2SA933S
KRC103M R614 R617 100K
MTZJ2.7B MTZJ2.7B D605 R626
R602
10/50 R604
1K
100K
C602 180
1SS133
2.2M C60
R612
R621
39K
R615 R622 R625
R616 1K 33/3
5 22K 100K
10K 180K
C950
104/50
P632A
GREEN RED
LED
SKW-204
E F G H
NOTE
R101 R101(2/2) THE COMPONENTS IDENTIFIED BY MARK ! ARE CRITICAL FOR SAFETY
20K 20K U02 FREQUENCY ADJUSTMENT
REPLACE ONLY WITH PART NUMBER SPECIFIED.
FREQ. PC BOARD VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL).
PHASE SWITCH AND FREQUENCY ADJUST. ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
P301B FOR SKW-204AMP ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
ELECTROLYTIC CAPACITORS ( ) ARE IN uF/WV.
P301A ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF 333- 0.033uF
ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
R317
Q303(1/2)
2.2K
Q303(2/2)
NJM4558LD NJM4558LD CAUTION ATTENTION
R320 8
314 10K 8 3
5 FOR CONTINUED PROTECTION AFIN D'ASSURER UNE PROTECTION
7/16 7 1 AGAINST FIRE HAZARD, REPLACE PERMANENTE CONTRE LES RISQUES
C315 6 2 ONLY WITH FUSE OF SAME TYPE D'INCENDIE, REMPLACER UNIQUEMENT
A V
4
A V
AND RATING INDICATED. PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
R319
334J 4
100K
R321
1K
C316
124
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL.
R513
82 Q518 CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
(1/4W) 2SC2235-Y
E LENT.POUR UNE PROTECTION PERMANENTE,N'UTILISER
1.6V
Q513 QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
Q517 INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
2SA933S-S
Q515 2SC5359-O/R
R541 R517 2SC5171
820 3.3K
1
R528 R526
-1 390 82
P531
C517 (1/2W) (1/2W) U03 POWER U04 VOLTAGE
Q541 10/50 R531 SPEAKER
TRANSFORMER SELECTOR
JL535A/B
2SC3423 0.22
(5W) PC BOARD PC BOARD
C526
10/50
R542 NAPS-8831 NASW-8832
C528
MWT MWT
150 10/50
2SA1987-O/R Lo
R533 T901 P905B
R544
Lo
100B
R543 3.3
180 NPT-1539DQ
Q516 (1W) 06 P905A P905B
S902
Hi
Hi
P903B
Y -1.6
ADJUST. 5A/125V P907A
C519
IDLING Q514 05 F901
2SA1930 224
Q519 F902
2SA965-Y C520 02 P908A
224 1.6A/250V
01 P908B
R514 P906A NASW-8833
82 (1/4W) C514
101 MWT
P906B S901
P902A
P901
+5.6V U05 POWER SWITCH
5.6
MPP/MPA NAPS-8831 PC BOARD
T901
F901 NASW-8833
NPT-1539P
P903B
1.6A/250V P906B MPP/MPA
D902 P907A
RL1N4003 S901 POWER
R904 R901 or GP104003E P906A SWITCH
D606
1SS133 1K 820 (1W)
(1/2W) D903
104J/100
R627 RL1N4003
C903
680K R628
NC
R902 or GP104003E D901
MTZJ5.6B
P902A P901
D3SBA20
R903
D904
330K
10K
820(1W)
R629
NC
Q609 C909 MDC NAPS-8831
J903A
C604 22/50 C905
NC
33/35 5600/71
T901
F901 NASW-8833
R701 NPT-1539D
P903B
NC 5A/125V P906B MDC
P907A S901 POWER
P906A SWITCH
104J/100
C906
C904
NC
5600/71
P902A P901
SKW-204
A B C D
PRINTED CIRCUIT BOARD VIEWS-1
1 U01 MAIN PC BOARD (NAAF-8829)
Component side
R517 C315
25138829A
Q303
Q517
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