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Onkyo HTP-770B Service Manual

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7.1-CH HOME THEATER
MODEL
Front Speakers (L / R)
"SKF-770"
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
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.
SERVICE MANUAL
SERVICE MANUAL
SPEAKER PACKAGE
HTP-770(B)
Surround Speakers (L / R)
Center Speaker
"SKC-770"
Surround Back Speakers (L / R)
Black model
B MDC
120V AC, 60Hz
"SKR-770"
"SKB-770"
ON THE
HTP-770
Ref. No. 4152
072009
Powered Subwoofer
"SKW-770"

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Summary of Contents for Onkyo HTP-770B

  • Page 1 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...

  • Page 2: Adjustment Procedure

    HTP-770 ADJUSTMENT PROCEDURE SKW-770 : 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.
  • Page 3 HTP-770 EXPLODED VIEWS-1 SKW-770 : POWERED SUBWOOFER P901 SP11 x 10 pcs. x 2 pcs. A102 A103 A101 A104 x 2 pcs. x 2 pcs. Q516 Refer to "EXPLODED VIEWS-2" Q541 Q515 SP12 E801 x 4 pcs. x 5 pcs. SP13 x 2 pcs.
  • Page 4 HTP-770 SP01a (Subwoofer ass’y) EXPLODED VIEWS-2 (All) SKW-770 : POWERED SUBWOOFER SP01b (Subwoofer ass’y) (Without AMP unit, Speaker unit and Power transformer) SP08 SP06 SP07 x 6 pcs. SP02 x 4 pcs. SP04 x 4 pcs.

  • Page 5: Exploded Views

    HTP-770 EXPLODED VIEWS-3 SKF-770 <L> / SKF-770 <R> / SKC-770 <Note> Cannot remove the speaker grill. <Note> Cannot remove the speaker grill. SP21a/b (Speaker ass’y) SP41 (Speaker ass’y) SP33a/b SP53 SP47 SP34 x 2 pcs. SP32a/b l a c e e n l a c B l a i t e...
  • Page 6 HTP-770 EXPLODED VIEWS-4 SKR-770 <L> / SKR-770 <R> / SKB-770 <L> / SKB-770 <R> SP61 SP63 SP62 SP64 <Note> Cannot remove the speaker grill. I N A I N A B l a B l a G r a B l u "SKR-770 <L>"...
  • Page 7 HTP-770 SCHEMATIC DIAGRAM SKW-770 : POWERED SUBWOOFER NOTE THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY NAAF-8829 REPLACE ONLY WITH PART NUMBER SPECIFIED. LINE INPUT Q301(1/2) VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL). MAIN PC BOARD P301 NJM4558LD ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
  • Page 8 HTP-770 PRINTED CIRCUIT BOARD VIEWS-1 SKW-770 : POWERED SUBWOOFER MAIN PC BOARD (NAAF-8829) Component side R517 C315 Q517 R651 R545 Q518 C316 R541 R320 R319 Q503 R317 C506 C314 R544 J306 J303 Q509 R513 C312 J304 R528 Q513 J305 J307 C313 R511 Q519...
  • Page 9 HTP-770 PRINTED CIRCUIT BOARD VIEWS-2 SKW-770 : POWERED SUBWOOFER POWER TRANSFORMER PC BOARD (NAPS-8831) Component side J905 J904 J903 J902 RISK OF FIRE P902A -REPLACE FUSE AS MARKED. NCPS-8831 25138831 5A/125V P907A F901A F901B F901...

  • Page 10: Exploded Views Parts List

    1/12 PAGE HTP-770 EXPLODED VIEWS PARTS LIST NOTE : THE COMPONENTS IDENTIFIED BY THE MARK <Notes> ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART <L> : Lch NUMBER SPECIFIED. <R> : Rch REF. NO. PART NAME DESCRIPTION Q'TY PART NO.
  • Page 11 (PLASTIC) D249-W55001B-01 EXPLODED SP04 WOOD SCREW 4STB + 45A(BC) (FOR FOOT) 411-BE4045AB1 EXPLODED SP06 WOOFER 10" (25cm) 4 ohm 80W (ONKYO ELE) W2301G EXPLODED SP07 WOOD SCREW 4STB + 25A(BC) (FOR SP UNIT) 411-BE4025AB1 EXPLODED SP08 LED HARNESS ASS'Y 335-SKW750-01...

  • Page 12: Printed Circuit Board Parts List

    3/12 PAGE SP11 WOOD SCREW 4STB + 16A(BC) (FOR AMP) 411-BE4016AB1 EXPLODED SP12 SCREW 4 x 25 ED BLK (FOR P-TRANS) 412-DE40250B1 EXPLODED SP13 CUSHION RUBBER PAD 19 x 89 T2 RUBBER (FOR P-TRANS) 442-902138-00 EXPLODED SKF-770 <L> / <R> (B) : FRONT SPEAKERS EXPLODED SP21a SPK SYSTEM ASS'Y...
  • Page 13 4/12 PAGE ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE ONLY WITH PART NUMBER SPECIFIED. SKW-770 MAIN PC BOARD (NAAF-8829-1AD) POWER TRANS. PC BOARD (NAPS-8831-1AD) CIRCUIT NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) REMARKS D501 ZENER D MTZJ5.6B 224470562T D501 or...
  • Page 14 5/12 PAGE D603 or DIODE 1SS133(DS) 223280T D605 DIODE 1SS133 223163T D605 or DIODE 1SS133(DS) 223280T D606 DIODE 1SS133 223163T D606 or DIODE 1SS133(DS) 223280T D607 DIODE 1SS133 223163T D651 DIODE 1SS133 223163T D651 or DIODE 1SS133(DS) 223280T D901 DIODE D3SBA20 22380271F D901 or...
  • Page 15 6/12 PAGE Q510 KTC3206-Y 2215854T Q510 or 2SC2229-Y(TPE6_F) 2211634T Q510 or 2SC2229-O(TPE6_F) 2211633T Q513 KTD2061-Y 2203434 Q513 or 2SC5171(ONK_Q) 2203010 Q514 KTB1369-Y 2203424 Q514 or 2SA1930(ONK_Q) 2203000 Q517 2SA933S-S 2213355T Q517 or 2SA933S-R 2213354T Q517 or KTA1267-GR 2215995T Q518 2SC2235-Y(TPE6_F) 2211654T Q519 2SA965-Y(TPE6_F)
  • Page 16 7/12 PAGE Q603 2SC1740S-S 2213285T Q603 or 2SC1740S-R 2213284T Q603 or KTC3199-GR 2215864T Q604 2SA933S-S 2213355T Q604 or 2SA933S-R 2213354T Q604 or KTA1267-GR 2215995T Q605 2SA933S-S 2213355T Q605 or 2SA933S-R 2213354T Q605 or KTA1267-GR 2215995T Q606 KRA103M 2215780T Q606 or DTA124ES 2212600T Q607...
  • Page 17 8/12 PAGE C906 ELECT C CE62W63V-5600M 3504399 C909 VR C CE04W50V-22M(VR) 394682207T C950 TF C ECQ-V50V-104J 374721044T C951 VR C CE04W16V-220M(VR) 394642217T C952 VR C CE04W16V-220M(VR) 394642217T C955 TF C ECQ-B50V-223J 374722234T R301 CARBON R R16J-1K 417341024T R302 VARI R N17RGL20KB15M 5151508 R303...
  • Page 18 9/12 PAGE R502 CARBON R R16J-47K 417344734T R503 CARBON R R16J-5.6K 417345624T R504 CARBON R R16J-2.2K 417342224T R505 NF CARBON R R25J-1.0K 415471024T R506 NF CARBON R R25J-1.0K 415471024T R507 CARBON R R16J-33K 417343334T R508 NF CARBON R R25J-47 415474704T R509 CARBON R R16J-1K...
  • Page 19 10/12 PAGE R609 CARBON R R16J-39K 417343934T R610 CARBON R R16J-560K 417345644T R611 CARBON R R16J-820K 417348244T R612 CARBON R R16J-39K 417343934T R613 CARBON R R16J-470K 417344744T R614 CARBON R R16J-120K 417341244T R615 CARBON R R16J-22K 417342234T R616 CARBON R R16J-100K 417341044T R617...
  • Page 20 11/12 PAGE R624 CARBON R R16J-100K 417341044T R625 CARBON R R16J-180K 417341844T R626 CARBON R R16J-2.2M 417342254T R627 CARBON R R16J-680K 417346844T R628 CARBON R R16J-330K 417343344T R651 METAL O R RS1/2WBJ-12K 443521234T R901 METAL O R RS1WBJ-820 443628214T R902 METAL O R RS1WBJ-820 443628214T...
  • Page 21 12/12 PAGE...
  • Page 22 Tel: 072-831-8023 Fax: 072-831-8163 ONKYO U.S.A. CORPORATION 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel: 201-785-2600 Fax: 201-785-2650 http://www.us.onkyo.com/ ONKYO EUROPE ELECTRONICS GmbH (DUISBURG OFFICE) Hafennr.7602, Logport Office-Center, Bliersheimerstr.80B, 47229 Duisburg, Germany Tel: +49-2065-90198-00 Fax: +49-2065-90198-40 http://www.eu.onkyo.com/ ONKYO EUROPE UK Office...

This manual is also suitable for:

Htp-750