Onkyo HTP-450 Service Manual

SERVICE MANUAL

SERVICE MANUAL

5.1-CH HOME THEATER SPEAKER PACKAGE

MODEL HTP-450(S)

Powered Subwoofer

Front Speakers (L / R)

"SKF-450F"

Center Speaker

"SKC-450C"

Surround Speakers (L / R)

"SKM-450S"

"SKW-450"

HTP-450

Ref. No. 4008

032007

Cannot remove the speaker grill.

Silver model

120V AC, 60HzS MDD
120V AC, 60Hz S MDC

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.

EXPLODED VIEWS-1

SKW-450 : POWERED SUBWOOFER

HTP-450

P901

A102

A103

A104

x 2 pcs.

A05

x 2 pcs.

A02

SP07

x 10 pcs.

A02

A03

U01

U06

A101

A07

Q516

Q541

A01

A08

x 2 pcs.

A05

Q515

A07

A11

Refer to "EXPLODED VIEWS-2"

E801

A05

x 5 pcs.

U03

T901

HTP-450

F901

EXPLODED VIEWS-2

SKW-450 : POWERED SUBWOOFER

HTP-450

SP01

SP08

SP02

x 4 pcs.

SP03

x 4 pcs.

SP04

x 4 pcs.

SP06

HTP-450

SP07

x 6 pcs.

EXPLODED VIEWS-3

SKF-450F / SKC-450C / SKM-450S

HTP-450

<Note>

Cannot remove the speaker grill.

SP11

TERMINAL :
White / Black

SP10

SP13

TERMINAL :
Red / Black

"SKF-450F (L)" "SKF-450F (R)"

SP16 SP18

SP17

SP19

SP12

SP15

TERMINAL :
Green / Black

SP14

"SKC-450C"

ack

TERMINAL :
Blue / Bl

TERMINAL :
Gray / Black

HTP-450

"SKM-450S (R)""SKM-450S (L)"

SCHEMATIC DIAGRAM

SKW-450 : POWERED SUBWOOFER

HTP-450

A

1

2

3

4

5

BCDEFGH

J316

E801

Q301(2/2)
NJM4558LD

4

8

5

6

7

Q301(1/2)
NJM4558LD

3

2

1

8

4

Q602
KRC103M

Q606

KRA103M

P301

R651

12K

(1/2W)

R951

3.3K

POWER NEED TO CONFIRM

(2W)

R952

3.3K

(2W)

0

-0.6

0

0.05

0.6

5.0

R609

39K

R611

820K

R610

560K

R616

100K

R617

1K

R621

1K

R615

22K

R612

39K

R614

120K

R613

470K

R619

22K

R620

100K

R624
100K

R623

100K

R627
680K

R622

10K

R626

2.2M
R625
180K

P632A

REDGREEN

D601
MTZJ2.7B

D602

MTZJ2.7B

D501

MTZJ5.6B

D952

MTZJ15C

D951

MTZJ15C

Q507

2SA949-Y

Q505

2SA949-Y

Q509

2SA949-Y

Q604

2SA933S

Q605

2SA933S

Q607

2SA933S

Q506

2SC2229-Y

Q510

2SC2229-Y

Q503

2SC2240-BL

Q502
2SC2240-BL

Q501

2SC2240-BL

Q603

2SC1740S-S

Q608

2SC1740S-S

P501B

P633

P631

D651

1SS133

D603

1SS133

D605

1SS133

R302

20K

C301

C303

NC

C955

223J

C506

070

C502

NC

C505

020

C503

224J

C950

104/50

C302
47/50

C527
1/50

C501

47/50

C504
220/16

C951

220/16

C952

220/16

C601

10/50

C603

470/16

C602

10/50

C604

33/35

R306

47K

R301

1K

R307

2.2K

R305

33K

R303

47K

R304

27K

R508

47

(1/4W)

R511

82

(1/4W)

R512

68

(1/4W)

R514

82

R513

82
(1/4W)

R516

12K

R515

12K

R502

47K

R510

100K

R505

1K

(1/4W)

R506

1K

(1/4W)

R507

33K

R527
270

R509

1K

R504

2.2K

R503

5.6K

R522
220

R521

220

R501

1K

R603

150K

R601

5.6K

R605

22

R602

100K

R604

180

NAAF-8829

(MPA)

224

NC

NC

MAIN PC BOARD

U01

LINE INPUT

OUTPUT
LEVEL

LED