background image

HTP-780

SCHEMATIC DIAGRAMS-1

SKW-780 : POWERED SUBWOOFER

A

1

2

3

4

5

B

C

D

E

F

G

H

+5.6V

-56.5V

+56.5V

J901

MD

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)

R901

820 (1W)

R902

820(1W)

0

1

-0.6

1.6V

-1.6

-1

0

0.05

0.6

5.0

D901

D3SBA20

R544

100B

R528

390

(1/2W)

R628

330K

R629

NC

R701

NC

R904

1K

(1/2W)

R903

10K

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

P901

F901

5A/125V

T901

NPT-1578D

P901A

P903A

P632A

RED

BLUE

D601
MTZJ2.7B

D602

MTZJ2.7B

D501

MTZJ5.6B

D952

MTZJ15C

D951

MTZJ15C

D904

MTZJ5.6B

Q516

2SA1987-O/R

Q519

2SA965-Y

Q517

2SA933S-S

Q507

2SA949-Y

Q505

2SA949-Y

Q509

2SA949-Y

Q514

2SA1930

Q604

2SA933S

Q605

2SA933S

Q607

2SA933S

Q541

2SC3423

Q506

2SC2229-Y

Q510

2SC2229-Y

Q503

2SC2240-BL

Q515 2SC5359-O/R

Q513

2SC5171

Q518

2SC2235-Y

Q502

2SC2240-BL

Q501

2SC2240-BL

Q609

NC

Q603

2SC1740S-S

Q608

2SC1740S-S

Summary of Contents for HTP-780

Page 1: ...d Back Speakers L R SKB 780 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 ...

Page 2: ...ading of multimeter becomes 52 ohm to 53 ohm 3 Connect the DC voltmeter to test point P531 Fig 1 4 Connect the power cord into the AC outlet 5 Confirm the voltage of above point after 6 minutes to 8 minutes Heat running 6 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 R...

Page 3: ...D SUBWOOFER HTP 780 A08 x 2 pcs SP11 x 10 pcs NSP A104 x 2 pcs A05 x 2 pcs A05 x 5 pcs A103 A102 P901 U03 A11 E801 A01 U01 A07 A07 A101 A02 A02 A06 U06 A05 Q515 Q516 Q541 F901 T901 A03 SP12 x 4 pcs NSP SP13 x 2 pcs Refer to EXPLODED VIEWS 2 ...

Page 4: ...HTP 780 EXPLODED VIEWS 2 SKW 780 POWERED SUBWOOFER HTP 780 SP06 SP08 SP02 x 4 pcs SP01a Subwoofer ass y All SP01b Subwoofer ass y Without AMP unit Speaker unit and Power transformer ...

Page 5: ...FER SP24 TWEETER SP43 WOOFER SP44 TWEETER SP25 Speaker ass y SP26 WOOFER SP27 TWEETER SKF 780 L SKC 780 Note Cannot remove the speaker grill Note Cannot remove the speaker grill Lch TERMINAL White Black Rch TERMINAL Red Black TERMINAL Green Black NOT MAGNETICALLY SHIELDED NOT MAGNETICALLY SHIELDED SKF 780 R ...

Page 6: ...1 SP63 SP65 SP67 SKR 780 R SKR 780 L TERMINAL Blue Black TERMINAL Gray Black SKB 780 R SKB 780 L TERMINAL Brown Black TERMINAL Tan Black Note Cannot remove the speaker grill NOT MAGNETICALLY SHIELDED NOT MAGNETICALLY SHIELDED NOT MAGNETICALLY SHIELDED NOT MAGNETICALLY SHIELDED ...

Page 7: ... 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 P901 F901 5A 125V T901 NPT 1578D P901A P903A P632A RED BLUE D601 MTZJ2 7B D602 MTZJ2 7B D501 MTZJ5 6B D952 MTZJ15C D951 MTZJ15C D904 MTZJ5 6B Q516 2SA1987 O R Q519 2SA965 Y Q517 2SA933S S Q507 2SA949 Y Q505 2SA949 Y Q509 2SA949 Y Q514 2S...

Page 8: ...HTP 780 PRINTED CIRCUIT BOARD VIEWS 1 SKW 780 POWERED SUBWOOFER U01 MAIN PC BOARD NAAF 8829 Component side 7 25 12 17 15 12 15 7 7 17 12 17 7 7 7 7 7 7 7 7 7 7 22 20 20 ...

Page 9: ... 15 NCPS 8831 25138831 RISK OF FIRE REPLACE FUSE AS MARKED 2 2 3 5 6 8 10 12 14 16 AC H AC G P902A F901A F901B 5A 125V F901 1 P905A P907A P906A J901 J905 J903 J904 J902 T901 T901 P903A P901A AC G AC H A 1 2 3 4 5 B C D U03 POWER TRANSFORMER PC BOARD NAPS 8831 Component side ...

Page 10: ... type EXPLODED Q515 Q516 Q541 EXPLODED CHASSIS SCREW EXPLODED A01 HEAT SINK 230 1 27160591 EXPLODED A02 CUSHION 2 28141682 EXPLODED A03 CUSHION 1 28141691 EXPLODED A05 SCREW 3TTB 8B 3BC 8 838430088GR EXPLODED A06 TAPE TAPE CLOTH 16U 1 29110083 EXPLODED A07 ISO SHEET AC262 2 223025 EXPLODED A08 SCREW 3SMS8W SW 14B CU 2 801634 EXPLODED A11 RETAINER PCB 1 27142025 EXPLODED A101 REAR PANEL SKW 780AMP ...

Page 11: ...1 MAIN PC BOARD ASS Y NAAF 8829 1AD 1 1B138529 1AD EXPLODED U03 POWER TRANS PC BOARD ASS Y NAPS 8831 1AD 1 1B138531 1AD EXPLODED U06 HOLDER PC BOARD NAETC 8834 1 NSP EXPLODED SPEAKER SECTION SKW 780 EXPLODED SP01a SPK SYSTEM ASS Y ALL SKW 780 B MDD 1 000 SKW780BMDC EXPLODED SP01b SUBWOOFER ASS Y SKW 780 B MDD 1 EXPLODED Note EXPLODED SP01a ALL EXPLODED SP01b Without AMP unit Speaker unit and Power...

Page 12: ...C 780 B 1 000 SKC780BMDD EXPLODED SP43 WOOFER FPI 2 300 DHTS7200800 EXPLODED SP44 TWEETER BLACK 1 302 DBF7700200 EXPLODED SKR 780 L R B SURROUND SPEAKERS EXPLODED SP61 COMPLETE UNIT SKR 780 L B 1 000 SKR780LBMDC L EXPLODED SP63 COMPLETE UNIT SKR 780 R B 1 000 SKR780RBMDC R EXPLODED SKB 780 L R B SURROUND BACK SPEAKERS EXPLODED SP65 COMPLETE UNIT SKB 780 L B 1 000 SKB780LBMDD L EXPLODED SP67 COMPLE...

Page 13: ...B 1 224850272T PWB D603 DIODE 1SS133 1 223163T PWB D603 or DIODE 1SS133 DS 1 223280T PWB D605 DIODE 1SS133 1 223163T PWB D605 or DIODE 1SS133 DS 1 223280T PWB D606 DIODE 1SS133 1 223163T PWB D606 or DIODE 1SS133 DS 1 223280T PWB D607 DIODE 1SS133 1 223163T PWB D651 DIODE 1SS133 1 223163T PWB D651 or DIODE 1SS133 DS 1 223280T PWB D901 DIODE D3SBA20 1 22380271F ...

Page 14: ...TR 2SC2240 BL TPE2_F 1 2211406T PWB Q503 TR 2SC2240 BL TPE2_F 1 2211406T PWB Q505 TR KTA1024 Y 1 2215844T PWB Q505 or TR 2SA949 O TPE6_F 1 2211353T PWB Q505 or TR 2SA949 Y TPE6_F 1 2211354T PWB Q506 TR 2SC2229 Y TPE6_F 1 2211634T PWB Q506 or TR 2SC2229 O TPE6_F 1 2211633T PWB Q507 TR 2SA949 Y TPE6_F 1 2211354T PWB Q507 or TR 2SA949 O TPE6_F 1 2211353T PWB Q507 or TR KTA1024 Y 1 2215844T PWB Q509 T...

Page 15: ...T PWB Q602 or TR DTC124ES 1 2213160T PWB Q603 TR 2SC1740S S 1 2213285T PWB Q603 or TR 2SC1740S R 1 2213284T PWB Q603 or TR KTC3199 GR 1 2215864T PWB Q604 TR 2SA933S S 1 2213355T PWB Q604 or TR 2SA933S R 1 2213354T PWB Q604 or TR KTA1267 GR 1 2215995T PWB Q605 TR 2SA933S S 1 2213355T PWB Q605 or TR 2SA933S R 1 2213354T PWB Q605 or TR KTA1267 GR 1 2215995T ...

Page 16: ... 397381007T PWB C519 TF C ECQ V50V 224J 1 374722244T PWB C520 TF C ECQ V50V 224J 1 374722244T PWB C526 VX C CE04W50V 10M VX_BLK 1 397381007T PWB C527 VX C CE04W50V 1M VX_BLK 1 397380107T PWB C528 VX C CE04W50V 10M VX_BLK 1 397381007T PWB C601 VR C CE04W50V 10M VR 1 394681007T PWB C602 VR C CE04W50V 10M VR 1 394681007T PWB C603 VR C CE04W16V 470M VR 1 394644717T PWB C603 or VX C CE04W16V 470M VX_BL...

Page 17: ...6J 47K 1 417344734T PWB R307 CARBON R R16J 2 2K 1 417342224T PWB R501 CARBON R R16J 1K 1 417341024T PWB R502 CARBON R R16J 47K 1 417344734T PWB R503 CARBON R R16J 5 6K 1 417345624T PWB R504 CARBON R R16J 2 2K 1 417342224T PWB R505 NF CARBON R R25J 1 0K 1 415471024T PWB R506 NF CARBON R R25J 1 0K 1 415471024T PWB R507 CARBON R R16J 33K 1 417343334T PWB R508 NF CARBON R R25J 47 1 415474704T ...

Page 18: ...0132 PWB R531 or METAL P R RGC55C 0 22 K 1 4000157 PWB R531 or METAL PR MPR5W 5W 0R22 1 4000233 PWB R531 or METAL P R RF 5EGPJR22 1 4000244 PWB R533 METAL R RNU1WCJ 3 3 1 453630334T PWB R541 CARBON R R16J 820 1 417348214T PWB R542 CARBON R R16J 150 1 417341514T PWB R543 CARBON R R16J 180 1 417341814T PWB R544 TRIM R N06HR100BC 1 5210359T PWB R544 or TRIM R N06HR100BC 1 5210399T PWB R601 CARBON R R...

Page 19: ...16J 1K 1 417341024T PWB R622 CARBON R R16J 10K 1 417341034T PWB R623 CARBON R R16J 100K 1 417341044T PWB R624 CARBON R R16J 100K 1 417341044T PWB R625 CARBON R R16J 180K 1 417341844T PWB R626 CARBON R R16J 2 2M 1 417342254T PWB R627 CARBON R R16J 680K 1 417346844T PWB R628 CARBON R R16J 330K 1 417343344T PWB R651 METAL O R RS1 2WBJ 12K 1 443521234T PWB R901 METAL O R RS1WBJ 820 1 443628214T ...

Page 20: ...01Aor FUSE HOL NSCT 1P2031 1 25052133T PWB F901B FUSE HOL NSCT 1P2506 1 25052609T PWB F901Bor FUSE HOL NSCT 1P2031 1 25052133T PWB JL535A SOCKET AS NSAS 2P1852 1 2009991188UL PWB P301 PIN JACK NPJ 1PDB556 1 25045774 PWB P301 or PIN JACK NPJ 1PDB581 1 25045801 PWB P531 PLUG NPLG 2P29 1 25055038 PWB P631 PLUG NPLG 2P29 1 25055038 PWB P632A PLUG NPLG 3P131 1 25055147 PWB P901A PLUG NPLG 4P151 1 25055...

Page 21: ...12 12 PAGE ...

Page 22: ...p www us onkyo com ONKYO EUROPE ELECTRONICS GmbH Liegnitzerstrasse 6 82194 Groebenzell GERMANY Tel 49 8142 4401 0 Fax 49 8142 4401 555 http www eu onkyo com Service Dept Technical Support 2 1 Nisshin cho Neyagawa shi OSAKA 572 8540 JAPAN Tel 072 831 8023 Fax 072 831 8163 ONKYO CORPORATION http www onkyo com HOMEPAGE ONKYO CHINA LIMITED Unit 1 12 9 F Ever Gain Plaza Tower 1 88 Container Port Road K...

Reviews: