Onkyo HTP-528 Service Manual

SERVICE MANUAL

SERVICE MANUAL

5.1-CH HOME THEATER SPEAKER PACKAGE

HTP-528

Ref. No. 4137

042009

Front Speakers (L / R)

"SKF-528"

Cannot remove the speaker grill.

MODEL

Center Speaker

"SKC-528"

Black and Silver models

B MPP
S MPP

HTP-528(B)/(S)

Powered Subwoofer

"SKW-501"

Surround Speakers (L / R)

"SKR-528"

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

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.

ADJUSTMENT PROCEDURE

SKW-501 : POWERED SUBWOOFER / ADJUSTMENT OF IDLING CURRENT

[When]

1. Exchange transistors (Q505 - Q519).

2. Exchange MAIN PC board ass'y (NAAF-8829).

[Procedure]

<Note> No speaker load and No input signal.

1. Short test point P631 for amplifier is under active mode.

2. Adjust the trimming resistor R544 so that the reading of multimeter becomes 52 ohm to 53 ohm.

3. Connect the DC voltmeter to test point P531. <Fig-1>

4. Connect the AC power cord into a wall outlet.

5. Press POWER button to turn on the unit.

6. Confirm the voltage of above point after 6 minutes to 8 minutes. (Heat running)

7. When less than 3.20 mV : Readjust the trimming resistor above so that the voltage becomes 4.5 mV to 5.0 mV.
When 3.30 mV to 5.20 mV : Not necessary to adjust.
When 5.21 mV to 10.0 mV : Readjust the trimming resistor above so that the voltage becomes 5.0 mV to 5.5 mV.
When 10.1 mV to 20.0 mV : Readjust the trimming resistor above so that the voltage becomes 5.6 mV to 6.0 mV.

8. Disconnect the AC power cord from a wall outlet.

9. Disconnect the DC voltmeter.

HTP-528

Trimming resistor

R544

Test point

P531

Test point

P531

100 ohm

(1/4W)

<Fig-1>

DC voltmeter

MAIN PC board ass'y "NAAF-8829"

Test point

P631

Short

EXPLODED VIEWS-1

SKW-501(MPP) : POWERED SUBWOOFER

P901

S901

HTP-528

<Note>

Added the Power Switch. (Running Change)

A102

A103

SP11

x 8 pcs.

A104

x 2 pcs.

A05

x 2 pcs.

A02

A03

A02

U07

U01

A101

A07

Q516

Q541

A08

x 2 pcs.

A05

A07

A01

A11

U05

See "EXPLODED VIEWS-2"

Q515

SP12

x 4 pcs.

E801

<Note>

F901C : Part No. of LABEL

---> See "PRINTED CIRCUIT BOARD PARTS LIST".

A05

x 5 pcs.

SP13

x 2 pcs.

F901C

U03

T901

HTP-528

F901

HTP-528

EXPLODED VIEWS-2

SKW-501 : POWERED SUBWOOFER

----- SP01a/b (Subwoofer ass’y) (All) -----

----- SP01c/d (Subwoofer ass’y)
(Without AMP unit, Speaker unit and Power transformer) -----

SP08

SP06

x 4 pcs.

SP07

SP04a/b

x 4 pcs.

SP03

x 4 pcs.

Butyl rubber
x 4 pcs.

SP02

x 4 pcs.

HTP-528

SP05

x 4 pcs.

EXPLODED VIEWS-3

SKF-528 / SKC-528 / SKR-528

SP10a/b SP11a/b

HTP-528

<Note>

Cannot remove the speaker grill.

SP13a/b

TERMINAL :
White / Black

"SKF-528 <L>" "SKF-528 <R>"

TERMINAL :
Blue / Black

TERMINAL :
Red / Black

SP15a/b SP16a/b

TERMINAL :
Gray / Black

TERMINAL :
Green / Black

"SKC-528"

"SKR-528 <R>""SKR-528 <L>"

NOT MAGNETICALLY SHIELDED NOT MAGNETICALLY SHIELDED

HTP-528

HTP-528

A

SCHEMATIC DIAGRAM

SKW-501(MPP) : POWERED SUBWOOFER

1

2

3

LINE INPUT

P301

C955

223J

E801

R301

1K

C301

C951

220/16

C952

220/16

224

R302

(MPA)

OUTPUT
LEVEL

C302
47/50

20KB

47K

R951

3.3K

POWER NEED TO CONFIRM

D951

MTZJ15C

D952

R952

MTZJ15C

(2W)

3.3K

R303

(2W)

3

2

R304

Q301(1/2)
NJM4558LD
8

4
R305

33K

C303

NC

27K

1

BCDEFGH

47K

R307

2.2K

R306

P501B

NC

J316

C502

(1/2W)

12K

1SS133

NC

R651

D651

C501

47/50

C527
1/50

R501

1K

R502

47K

R510

100K

U01

R505

1K

(1/4W)

Q501

2SC2240-BL
0

C503

224J

R521

220

D501

MTZJ5.6B

MAIN PC BOARD

R506

1K

(1/4W)

2SA949-Y

Q502
2SC2240-BL

-0.6

R522
220

R503

5.6K

Q503

2SC2240-BL

R504

2.2K

R509

1K

R527
270

C504
220/16

C505

020

R507

33K

0

R508

47

(1/4W)

2SA949-Y

R511

82

(1/4W)

Q505

Q507

NAAF-8829

Q509

2SA949-Y

070

2SC2229-Y

Q506

2SC2229-Y

R512

68

(1/4W)

C506

R515

12K

R516

12K

Q510

R513

82
(1/4W)

R514

82

R541

820

R542

150

R544

100B

ADJUST.
IDLING

(1/4W)

R517

3.3K
1

-1

Q541

2SC3423

R543

<Note>

NC : No mount of parts.

Q518

2SC2235-Y

1.6V

Q517

2SA933S-S

C517

10/50

C528

180

-1.6

Q519

2SA965-Y

C514

101

(1/2W)

10/50

R528

390

C526

10/50

Q513

2SC5171

Q514

2SA1930

Q515

R526

82

(1/2W)

R531

0.22
(5W)

2SA1962-O/R

Q516

2SC5242-O/R

R533

3.3
(1W)

C519

224

C520

224

P531

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.

SPEAKER

CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
E LENT.POUR UNE PROTECTION PERMANENTE,N'UTILISER

JL535A/B

QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.

POWER TRANSFORMER

U03

PC BOARD

MMP

T901

NPT-1568M

P901A

!

NAPS-8831

1.6A/250V
F901

J901

4

5

10/50

5.6K

C601

R601

100K

Q301(2/2)
NJM4558LD

5

6

D601
MTZJ2.7B

180

R602

R604

C602

10/50

8

4

R603

150K

7

D602

MTZJ2.7B

D603

1SS133

R605

22

C603

470/16

P633

39K

R609

NC

Q602
KRC103M

R610

560K

820K

120K

R614

39K

R611

R612

Q603

2SC1740S-S

R613
470K

D605

1SS133

C950

104/50

Q604

2SA933S

R617

1K

R615

22K

R619

22K

R620

100K

R616

100K

D607

1SS133

Q605

2SA933S

R621

1K

P632A

REDBLUE

Q606

KRA103M

P631

2SA933S

Q607

R622

10K

5.0

R624
100K

R623

100K

Q608

2SC1740S-S

R626

2.2M

0.05

0.6

R625
180K

R627
680K

C604

33/35

Q609

NC

D606

1SS133

R628

330K

R629

NC

R701

NC

+5.6V

1K

(1/2W)

R904

10K

D904

MTZJ5.6B

R903

820

820

C909
22/50

R901

(1W)

R902

(1W)

-56.5V

D902
RL1N4003
or GP104003E

D903
RL1N4003
or GP104003E

+56.5V

D901

D3SBA20

C905

4700/50

C906

4700/50

C903

C904

104J/100

(MPA TYPE)

104J/100

(MPA TYPE)

U03

P903A

POWER TRANSFORMER
PC BOARD

MPP

T901
NPT-1568M

P901A

NAPS-8831

P902A

1.6A/250V
F901

P907A

P906A

P902A

U05

P901

AC 220-240V, 50/60Hz

POWER SWITCH
PC BOARD

NASW-8833

MPP

P906B

S901

P901

AC 230V / 50Hz

POWER
SWITCH

LED

HTP-528

A

PRINTED CIRCUIT BOARD VIEWS-1

SKW-501 : POWERED SUBWOOFER

1

2

3

4

MAIN PC BOARD (NAAF-8829)U01

Component side

NCAF-8829

1

BCE

J308

Q515

22

J323

B

CE

17

Q541

+Vcc

J334

C906

CEB

25

Q516

E701

R701

25138829A

J307

J314

J324

12

R531

C519

R533

D951

C951

J955

R952

7

C952

D952

P301

C955

R545

R544

P531

J325

J332

7

C906

D902

Q513

R526

Q514

C526

R508

-Vee

J322

C520

J956

J352

7

P301

BCD

R543

R542

J320

R901

ECB

ECB

Q510

J321

RED REDBLK

J306

15

R514

R512

Q506

Q507

JL535B

RED

+Vcc

20

J330

J333

J331

17

J340

7

R951

C903 C904

P903A

D903

R902

R301

C301

C527

15

R528

C528

J312

7

BLACK

17

C909

R517
Q517
Q518

R541

12

J311

J313

J319

JL535A

D901

R302

R510

J303

J304

C514

R516

C502

J351

R904

D501

J305

Q519

R515

C504

R903

D904

C517

P502A

12

Q504

R507

R527

C905

R513

C505

R509

C503

R502

R628

R629

J346

D606

R627

R504

Q502

C604

R625

R522

J347

Q609

R651

Q503

C506

R503

R501

C501

C905

C950

J310

R321

R302

Q505

Q501

20

7

Q604

R623

R624

R626

Q608

Q509

R521

J318

R619

Q606

D651

R511

R505

R506

J338

R615

Q607

7

7

J348

J316

J326
J329

J302

J349

J350

7

Q303

7654 3218

J301

7

Q302

R304

R303

J327

R617

R611

Q603

R622

C302

81234567

R306

R307

C303

R305

7

R610

R616

J341

7

Q301

R621

P632A

C313

R316

R312

R314

C311

R315

J309

J337

C316

R320

R319

R317

C314

C312

E801

R609

7

P631

J344

C315

R313

1

2345 678

Q602

P911

C601

R601

R602
C602

R604

R603

D601

D602

D603

R605

C603

P633

Q605
R620

D605

R614

R613

R612

J342

P912

R311

J335

P301A

J336

5