Onkyo HTP-538 Service Manual

SERVICE MANUAL

5.1-CH HOME THEATER SPEAKER PACKAGE

MODEL HTP-538(B)/(S)

Powered Subwoofer

"SKW-538"

HTP-538

Ref. No. 4201

032010

Front Speakers (L / R)

"SKF-538"

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.

Center Speaker

"SKC-538"

Cannot remove the speaker grill.

Surround Speakers (L / R)

Black and Silver models

HT-S5305

B MPP S MPP

HTP-538

B MPP S MPP

230V AC, 50Hz 230V AC, 50Hz

"SKR-538"

EXPLODED VIEWS-1

SKW-538 : POWERED SUBWOOFER (EuP AMP.)

P901

SP11

x 8 pcs. (NSP)

A02

A101

U05

A03

A102

A103

A05

x 2 pcs.

A07

HTP-538

S901

<Note>

Part No. of S901 ---> See "PRINTED CIRCUIT BOARD PARTS LIST".

U04

A08

x 2 pcs.

Q516

A05

Q541

A106

x 2 pcs.

A02

U01

A05

x 5 pcs.

A07

A105

A11

Q515

E802

SP12

x 5 pcs.

(NSP)

SP13

x 2 pcs.

(NSP)

A05

x 2 pcs.

Refer to "EXPLODED VIEWS-2"

SP14(NSP)

A12

HTP-538

U02

T901

F901

EXPLODED VIEWS-2

SKW-538 : POWERED SUBWOOFER

HTP-538

----- SP01a/b : Subwoofer ass’y completed -----

----- SP02a/b : Subwoofer ass’y (Without AMP unit, Power transformer) -----

SP04

SP03

x 4 pcs.

HTP-538

EXPLODED VIEWS-3

SKF-538, SKC-538, SKR-538

SP20a/b SP21a/b

HTP-538

<Note>

Cannot remove the speaker grill.

SP23a/b

TERMINAL : Green / Black

TERMINAL : White / Black

"SKF-538 <L>" "SKF-538 <R>"

TERMINAL : Blue / Black

NOT MAGNETICALLY SHIELDED NOT MAGNETICALLY SHIELDED

TERMINAL : Red / Black

"SKC-538"

SP25a/b SP26a/b

TERMINAL : Gray / Black

HTP-538

"SKR-538 <R>""SKR-538 <L>"

HTP-538

A

BCDEFGH

SCHEMATIC DIAGRAM

SKW-538 : POWERED SUBWOOFER (POWER SWITCH)

1

S101

R101A

R101B

20K

6

150K

R603

R604

C602

10/50

8

9

6

75

4

56789

5

4

334J

C312

4.7K

R316

473J

C317

47K

R303

R304

R304 R305MODEL

2.2K 22K 27K 33KSKW-538 27K 33KSKW-501E

5

Q301:B

6

MTZJ3.6B

D601

20K

1

2

3

2

1

P302ANSAS-18P1831

P302BVal

2

1

3

6

5

C313

3

Q301:A

2

R305

Val

NJM4558LD

MTZJ3.6B

D602

Q302:B

104J

8

NJM4558LD

4

7

NJM4558LD

1

C303 223J

1SS133

D603

ONLY FOR SKW-208(-B)

1

47K

R322

NJM4558LD

4

8

Q303:A

2

3

2.2K

R317

C316

R306

C603

100K

NC

470/10

R307

270

104J

R319

C314 47/50

R605

22

J316

1.0V

39K

R609

Q602

KRC103M

5.6K

R320

5

7

NJM4558LD

R321

560K

R610

6

Q303:B

270

2SC1740S-S

R611

R612

C315

820K R614

120K

39K

334J

NC

C502

2.1V

2.7V

Q603

2SC1740S-S Q612

R613

470K

D605

1SS133

2

3

4

5

BCETC-0493

2

P301pinjack

NPJ-1PDB556

1

C955

223J

E801

AFM031

R315

R301

SLIDESW

8

7

4152

63

GND

1

234

E003TRM-423(SCREW)

987

1

3.3K NJM4558LD

4

8

Q302:A

2

3

R314

3.3K

R313

C311

25/100

100K

R312 100K

R311

1K

3

2

R302

C302

1

C301

C601

R601

100K

5.6K

R602

47/50

N17RGL20KB15M

OUTPUT LEVEL

SKW-208

180

221J

10/50

47/50 C501

1SS133

J390

C950 NC

R651

R501

1K

10K(1W)

D651

R630

U01 MAIN PC BOARD

R506

R505

1K(1/4W)

Q505

2SA949-Y(TPE6_F)

2SC2240-BL(TPE2_F)

33K

2SC2240-BL(TPE2_F)

-33.5V

1/50

C527

2SA933S

10K

R631

10K

R653 680K

330K

R654

22K

Q610

0

R502

R510

R615

100K

D501

1SS133

D652

R652 470K

C503

224J

C605

4.7/50

1SS133

D607

Q501

Q503

MTZJ5.6B

2SA933S

Q604

22K

R619

R620

100K

1K

R617

100K

R616

BLUE RED

1

R521

2

P632A

LED

220

R522

5.6K

R503

2.2K

R504

NPLG-2P29

R621

3

220

2SA933S

1K

NPLG-3P131

Q502

2SC2240-BL(TPE2_F)

-0.6

1K

R509

270

R527

C504

P631

2

1

Q605

C505

CERA C

020C

R507

33K

2SA949-Y(TPE6_F)

220/25

Q606

KRA103M

0

10K

R622

Q507

2SC2229-Y(TPE6_F)

R508

47(1/4W)

5.0

Q607

2SA933S

R623

100K

Q608

2SC1740S-S

R626

2.2M

100K

R511

82(1/4W)

R512

68(1/4W)

R624

R513

070D

C506

CERA C

12K

Q510

2SC2229-Y(TPE6_F)

Q506

82(1/4W)

0.05

0.6

680K

R627

C604

4.7/50

180K

R625

82(1/4W)

Q509

2SA949-Y(TPE6_F)

R515

R516

ADJUST. IDLING

R514

1SS133

330K

Q609

NC

BCAF-0491

<Note>

NC : No mount of parts.

2SC2235-Y(TPE6_F)

+1.6

3.3K

R517

820

1

R541

D606

R628

100B

2SC3423

150

3

R544

1

-1

Q541

R542

2

+5.0V

R629

R701

C917

NC

3

180

22/50

2SA933S-S

R543

Vin=6.7Vmin

78M05AHF

3

O

G

2

C918

NC

Q517

I

22/100

-1.6

101J

Q902

1

+8.6V

0.22(1/2W) R904

C517

C514

Q518

C528

22/100

2SC5171(ONK_Q)

R528

390(1/2W)

22/100

Q519

2SA965-Y(TPE6_F)

Q513

C526

82(1/2W)

Q514

2SA1930(ONK_Q)

ONLY FOR SKW-208(-B)

C951

MTZJ15B

220/25

C952

MTZJ15B

220/25

Q515

2SC5242-O/R

R526

R531

0.22(5W)

Q516

2SA1962-O/R

22(1/2W)

R906

C907

220/25

C908

22(1/2W)

220/25

+10V

R907

R951

3.3K(2W)

POWER NEED TO CONFIRM

D951

D952

R952

3.3K(2W)

P531

1 2

NPLG-2P29

SPEAKER

1

P535A

1

P535B

R533

3.3(1W)

RL1N4003

D919

R905

C905

C906

+39V

-39V

D3SBA20

4700/50

D901

224J

TF C

C519

224J

TF C

C520

0.47(1/2W)

+10V -10V

-10V

104J/100

GND +10V

C903

C904

1 2 3 4

5 4 3 2 1

NOTE

THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY REPLACE ONLY WITH PART NUMBER SPECIFIED. VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL). ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED. 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. 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.

!

CAUTION

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH FUSE OF SAME TYPE

VA

AND RATING INDICATED.

ATTENTION

AFIN D'ASSURER UNE PROTECTION PERMANENTE CONTRE LES RISQUES D'INCENDIE, REMPLACER UNIQUEMENT

VA

PAR UN FUSIBLE DE MEME TYPE ET CALIBRATION COMME INDIQUE.

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.

CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST E LENT.POUR UNE PROTECTION PERMANENTE,N'UTILISER QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.

P903B P903C

P903A

P903D

NPLG-4P151

NPLG-5P133

P908A

NSAS-10P1152

CN05

P908B

1

HOT

1

AGND

1

COLD

NPT-1568M

TRANS

1 2 3 4 5

U03 POWER TRANSFORMER PC BOARD

MKP_R46_103M

NSCT-1P2506

F901B

7

T901

R981

470(1W)

J996 J997

1mA

J995

R984

470(1W)

J998 J999

D918

R954

33(1/2W)

Q901

1SS133

F901A

32

DTC123JS

27mA(MAX70mA)

D920

C914

MTZJ9.1B

6 5

1

+10V

-10V

8 14 12 10

GND

R982

470(1W)

R983

470(1W)

C916

RL901

4

C915

224J

1SS133 D917

1000/25

C911

C912

1

MKP_R46_104M

1

658

D911

12

1SS133

1000/25

D913

1000/25

21

1SS133

BCPS-0492

P906B

P906C

P902A

C921

94

C919

104J

5mAMAX AC8.89V

220-240v 23011813a

U05 POWER SWITCH PC BOARD

P906B

2

1

NSAS-4P1564

2 1

NPLG-2P632

AC220-240V, 50/60Hz Added the Power Switch(Running change)

T902

NPT-1520GQ

BCSW-0494

S901

AC_CORD

EXPLODED

HTP-538

EXPLODED VIEWS PARTS LIST

<Notes>

NOTE : THE COMPONENTS IDENTIFIED BY THE MARK

! ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED.

REF. NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) REMARKS

SKW-538 (B)/(S) : POWERED SUBWOOFER (EuP AMP.)

AMPLIFIER SECTION (SKW-538) [SEMI CONDUCTOR]

Q515 TR 2SC5242-R 1 2202842 Q515or TR 2SC5242-O (1) 2202843 Q516 TR 2SA1962-R 1 2202832 Q516or TR 2SA1962-O (1) 2202833 Q541 TR 2SC3423-Y 1 2202104 Q541or TR 2SC3423-O (1) 2202103

<Note>

When replacement the following the transistor, made from the same HFE rank as the original type. Q515, Q516, Q541

[CHASSIS SCREW]

A02 CUSHION --- 2 28141751 A03 CUSHION --- 1 28141691 A05 SCREW 3TTB+8B(3BC) 10 838430088GR A07 ISO SHEET AC238 2 223024 A08 SCREW 3SMS8W.SW+14B(CU) 2 801634 A11 RETAINER (PCB) 1 27142025 A12 RETAINER (TRANS)SKW-538 1 27142177 A101 REAR PANEL SKW-538MPP 1 27124120A A102 BUSHING S-RELIEF #2271 1 27300750 A103 KNOB (VOL) 1 28326463 A105 HEAT SINK (242) 1 27160612 A106 SCREW 3SMS8W.SW+14B(3BC) 2 801433GR

[TRANS COIL]

T901 P TRANS NPT-1568M 1 2301928

(B) : Black model (S) : Silver model <L> : Lch <R> : Rch

!

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