Onkyo SKS-HT425 User manual

SKS-HT425
SERVICE MANUAL
SERVICE MANUAL
5.1CH HOME THEATER SPEAKER PACKAGE
Gray model
MODEL SKS-HT425(GY)
120V AC, 60HzMDD
Ref. No. 3840
092004
Front Speakers (L / R)
"SKF-425F"
Center Speaker
"SKC-425C"
Surround Speakers (L / R)
"SKM-425S"
Powered Subwoofer
"SKW-420"
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.

SPECIFICATIONS
SKS-HT425
Type :
Input sensitivity/impedance :
Maximum output power :
Frequency response :
Cabinet capacity :
Dimensions (W x H x D) :
Weight :
Speaker :
Power supply :
Power consumption :
Other :
Powered Bass-reflex
220 mV / 15 k ohm
150 W (Dynamic Power)
30 Hz - 150 Hz
1.15 cubic feet (32.5 Litter)
9-1/4" x 20-3/8" x 16-3/16"
(235 x 518 x 411 mm)
28.2 lbs. (12.8 kg)
8 inch Cone
AC 120 V, 60 Hz
75 W
Auto-standby function
Front Speaker (SKF-425F)
Type :
Impedance :
Maximum input power :
Output sound pressure level :
Frequency response :
Crossover frequency :
Cabinet capacity :
Dimensions (W x H x D) :
Weight :
Speaker :
Woofer :
Tweeter :
Terminal :
Other :
2 Way Bass-reflex
8 ohm
100 W
76 dB/W/m
70 Hz - 50 kHz
4.5 kHz
0.042 cubic feet (1.2 Litter)
4" x 6-5/8" x 5-3/8"
(101 x 169 x 136 mm)
2.6 lbs. (1.2 kg)
3-1/8 inch Cone
1 inch Balanced Dome
Spring type Color coded
Magnetic shielding
Type :
Impedance :
Maximum input power :
Output sound pressure level :
Frequency response :
Crossover frequency :
Cabinet capacity :
Dimensions (W x H x D) :
Weight :
Speaker :
Woofer :
Tweeter :
Terminal :
Other :
2 Way Bass-reflex
8 ohm
100 W
78 dB/W/m
70 Hz - 50 kHz
4.5 kHz
0.067 cubic feet (1.9 Litter)
10-3/8" x 3-3/4" x 5-3/8"
(264 x 96 x 136 mm)
4.4 lbs. (2.0 kg)
3-1/8 inch Cone x 2
1 inch Balanced Dome
Spring type Color coded
Magnetic shielding
Surround Speaker (SKM-425S)
Type :
Impedance :
Maximum input power :
Output sound pressure level :
Frequency response :
Crossover frequency :
Cabinet capacity :
Dimensions (W x H x D) :
Weight :
Speaker :
Woofer :
Tweeter :
Terminal :
2 Way Bass-reflex
8 ohm
100 W
79 dB/W/m
70 Hz - 30 kHz
10 kHz
0.042 cubic feet (1.2 Litter)
4" x 6-5/8" x 5-3/8"
(101 x 169 x 136 mm)
1.8 lbs. (0.8 kg)
3-1/8 inch Cone
3/4 inch Ceramic
Spring type Color coded
Specifications and appearance are subject to change
without prior notice.
Powered Subwoofer (SKW-420) Center Speaker (SKC-425C)

SKS-HT425
SKS-HT425
EXPLODED VIEW
SKF-425F / SKC-425C / SKM-425S
SP13
SP10 SP12
SP17 SP19
SP16 SP18
SP14
SP15
SP11
"SKF-425F <L>" "SKF-425F <R>" "SKC-425C"
"SKM-425S <R>""SKM-425S <L>"
TERMINAL :
White / Black
TERMINAL :
Red / Black
TERMINAL :
Green / Black
TERMINAL :
Blue / Black
TERMINAL :
Gray / Black
NOT MAGNETICALLY SHIELDED NOT MAGNETICALLY SHIELDED
<Note>
SKW-420 ---> Refer to service manual of "HTP-420" (Ref. No. : 3808).

SKS-HT425
PACKING PROCEDURE
SKS-HT425
L = 15 ft.
(22# 4.5 m)
(White / Black)
L = 15 ft.
(22# 4.5 m)
(Red / Black)
L = 30 ft.
(22# 9 m)
(Blue / Black)
L = 10 ft.
(22# 3 m)
(Green / Black)
L = 10 ft.
(3 m)
(Black / RCA)
L = 30 ft.
(22# 9 m)
(Gray / Black)
01
02 03
07
04
05
05
05
06
05
09
10
11
11
15
08
12
13
14

1/2 PAGE
SKS-HT425
EXPLODED VIEW PARTS LIS
T
REF. NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) MARK
EXPLODED SKW-420 (GY) : POWERED SUBWOOFER
EXPLODED <Note>
EXPLODED EXPLODED VIEW (SKW-420) ---> Refer to service manual of "HTP-420" (Ref. No. : 3808).
EXPLODED SP01 CABINET ASS'Y --- 1 ANW8W670SBM10
EXPLODED SP02 FOOT D87.5 x D37.5 x H50 HIPS BLK 4 BPE8000040001
EXPLODED SP03 STAND BOARD TF-917-28 1 ANF86007-BM10
EXPLODED SP04 FRONT PLATE SKW-420 / ONKYO NAME PLATE 1 BPL8001470001
EXPLODED SP05 WOOD SCREW D8 x D4 x L75 (FOR FOOT) 8 NST8550514750
EXPLODED SP06 WOOD SCREW 4STT+20A (FOR AMPLIFIER / SP) 18 837440204
EXPLODED SP08 WOOFER SPEAKER 20cm 4ohm 50W 1 W20178A
EXPLODED A01 REAR PANEL "SKW-420" SPCC 190 x 120 x T2.0mm 1 GSE4001750001
EXPLODED A02 AC CORD LINE CORD 2P 1800mm BLK POLARIZE 1 VPA0040120010 !
EXPLODED A03 BUSHING AC LINE BUSHING 1 DBU001002-0011 !
EXPLODED A04 POWER TRANSFORMER AC120V / 60Hz 100W 1 TTI1120010120 !
EXPLODED A05 SCREW M4.0 x P0.7 x L25mm (FOR TRANS) 4 HSD1431033250
EXPLODED F902, F903 FUSE 4A / 250V SLOW WALT 2 KSA0204000011 !
EXPLODED U01 MAIN PC BOARD ASS'Y MAIN PC BOARD ASS'Y 1 APE4012115001
EXPLODED <Note>
EXPLODED U01 : MAIN PC BOARD ASS'Y = PCB BRACKET + HEAT SINK + ALL PARTS FOR MAIN PC BOARD
EXPLODED U02 INPUT PC BOARD ASS'Y INPUT PC BOARD ASS'Y 1 APE4012125001
EXPLODED <Note>
EXPLODED U02 : INPUT PC BOARD ASS'Y = INPUT PC BOARD with RCA JACK + CORD ASS'Y
EXPLODED U03 VR / LED PC BOARD ASS'Y VR / LED PC BOARD ASS'Y 1 APE4012135001
EXPLODED <Note>
EXPLODED U03 : VR/ LED PC BOARD ASS'Y = VR / LED PC BOARD with VR / LED / CORD ASS'Y etc.
EXPLODED SKF-425F (GY) : FRONT SPEAKERS L / R
EXPLODED SP10 COMPLETE UNIT "SKF-425F (GY) L" 1 ANM8M675S-BM10
EXPLODED SP11 BACK LABEL (L) WITHOUT SERIAL NUMBERING 1 YLB810007-FL10
EXPLODED SP12 COMPLETE UNIT "SKF-425F (GY) R" 1 ANM8M675S-BM11
EXPLODED SP13 BACK LABEL (R) WITHOUT SERIAL NUMBERING 1 YLB810007-FR10
EXPLODED SKC-425C (GY) : CENTER SPEAKER
EXPLODED SP14 COMPLETE UNIT "SKC-425C (GY)" 1 ANC8C675S-BM10
EXPLODED SP15 BACK LABEL WITHOUT SERIAL NUMBERING 1 YLB810007-C010
EXPLODED SKM-425S (GY) : SURROUND SPEAKERS L / R
EXPLODED SP16 COMPLETE UNIT "SKM-425S (GY) L" 1 ANU8S675S-BM10
EXPLODED SP17 BACK LABEL (L) WITHOUT SERIAL NUMBERING 1 YLB810007-SL10
EXPLODED SP18 COMPLETE UNIT "SKM-420S (GY) R" 1 ANU8S675S-BM11
EXPLODED SP19 BACK LABEL (R) WITHOUT SERIAL NUMBERING 1 YLB810007-SR10
NOTE : THE COMPONENTS IDENTIFIED BY THE MARK
!ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE ONLY WITH PART
NUMBER SPECIFIED.

2/2 PAGE
SKS-HT425
PRINTED CIRCUIT BOARD PARTS LIS
T
CIRCUIT NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) MARK
PWB IC501 POWER IC 15PIN TDA7293 1 RHI007293-0001
PWB DB901 DIODE RS402L 4A 100V 1 RHD2040100011 !
SKS-HT425
PACKING PROCEDURE PARTS LIS
T
<Note>
Parts marked by "NSP" are generally unavailable because
they are not in our Master Spare Parts List.
REF. NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) MARK
PACKING 01 TOP POLYFOAM W509 x H605 x T75 1 ITF830338-0001
PACKING 02 MIDDLE POLYFOAM W509 x H605 x T90 1 ITF830338-0002
PACKING 03 BOTTOM POLYFOAM W509 x H605 x T75 1 ITF830338-0003
PACKING 04 POLY BAG (SOFT BAG) (FOR AC CORD) 1 --- NSP
PACKING 05 PO BAG (HM BAG) L320 x W240 x T0.015 (FOR SKF/SKM) 4 IVA803102-0010
PACKING 06 PO BAG (HM BAG) L400 x W240 x T0.015 (FOR SKC) 1 IVA803102-0011
PACKING 07 PO BAG (HM BAG) L1000 x W720 x T0.015 (FOR SKW) 1 IVA8031020008
PACKING 08 POLY BAG 350 x 250 1 29100097-1A
PACKING 09 TAPE (SEROHAN) NITTO NO.29 (Yellow) (1) 29110149
PACKING 10 CARTON BOX SKS-HT425 1 ICC8T425S-BM10
PACKING 11 PP TAPE W50 (1) 29110071 or
PACKING 11 PP TAPE NITTO 3703 SUPER W50L100 (1) 29110176
PACKING 12 INSTRUCTION MANUAL E ENGLISH 8 PAGE 1 YOM800001-0231
PACKING 13 CORK FOOT Dia 7 x T1.0 / 1 SETS 20 pcs. 1 DUF811001-0001
PACKING 14 WARRANTY CARD (ONKYO) 1 29365090B
PACKING 15 CABLE SET SP CABLE / RCA CABLE / POLY BAG 1 WMA8020010009
NOTE : THE COMPONENTS IDENTIFIED BY THE MARK
!ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE ONLY WITH PART
NUMBER SPECIFIED.

SKS-HT425
ONKYO U.S.A. CORPORATION
18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.
Tel: [phone] Fax: [phone] http://www.onkyousa.com
ONKYO EUROPE ELECTRONICS GmbH
Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY
Tel: [phone] Fax: [phone] http://www.onkyo.net
ONKYO CHINA LIMITED
Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung,
N.T., HONG KONG Tel: [phone] Fax: [phone]
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: [phone] Fax: [phone]
ONKYO CORPORATION
http://www.onkyo.com/
HOMEPAGE