Onkyo A-9155 Service Manual
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Onkyo A-9155 Service Manual

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See also: Instruction Manual
SERVICE MANUAL
SERVICE MANUAL

INTEGRATED AMPLIFIER

A-9155
MODEL
Black and Silver models
B MPP
230V AC, 50Hz
S MPP
230V AC, 50Hz
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.
Ref. No. 3991
ON THE
A-9155
042007
RC-627S

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Summary of Contents for Onkyo A-9155

  • Page 1: Integrated Amplifier

    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: Exploded View

    A-9155 EXPLODED VIEW A142 A047 x 2 pcs. A145 A146 P901 A061 x 6 pcs. Q522 Q524 x 2 pcs. A037 D901 A202 A200 Q523 A201 Q521 x 17 pcs. A501A A148 x 8 pcs. x 2 pcs. A042 A062 A055 x 5 pcs.
  • Page 3 A-9155 EXPLODED VIEW A142 A047 x 2 pcs. A145 A146 P901 A061 x 6 pcs. Q522 Q524 x 2 pcs. A037 D901 A202 A200 Q523 A201 Q521 x 17 pcs. A501A A148 x 8 pcs. x 2 pcs. A042 A062 A055 x 5 pcs.

  • Page 4: Schematic Diagrams

    A-9155 SCHEMATIC DIAGRAMS-1 NAAF-9246 TONE CONTROL PC BOAR NJM2068L-D R401 C401 C407 BASS TREBLE 47/25 NAAF-9245 47/25 Q401:A C405 C411 R417 473J R403 4.7K 123J R415 220K R405 R409 50KC AMPLIFIER PC BOARD 100KC 9 C403 R421 R411 47/25 C413...
  • Page 5 A-9155 OARD R593 C582 Q583 LEFT POWER-AMP 223Z 2.2(1/2W) 2SA949-Y 2SA970 P501 39.8V Q507 R521 R523 39.8V R573 R596 R517 R519 680(1W) 39.3V SP-B (1/2W) (1/2W) R591 Q517 R565 R577 Q531 120K 39.8V C531 2SC5171 120K C534 Q527 2SC1740S-S (1/4W)
  • Page 6 A-9155 SCHEMATIC DIAGRAMS-2 NASW-9253 R834 INPUT SELECTOR PC BOARD 2.7K C818 U801 S806 104Z R835 S805 LOUDNESS Q831 Q832 Q833 GP1UM281XKVF PURE DIRECT RN1402 RN1402 RN1402 JL811B NACPU-9251 MICROPROCESSOR PC BOARD JL811A D802 D821 1SS352 1SR154-400 L801 D801 Q802 R881...

  • Page 7: Led Pc Board

    A-9155 LED:SEL2E10C-F NOTE R846 R845 THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY R847 R844 1.2K REPLACE ONLY WITH PART NUMBER SPECIFIED. VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL). 1.8K ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.

  • Page 8: Power Switch Pc Board

    A-9155 SCHEMATIC DIAGRAMS-3 NOTE <Note> THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY NC = No mount of parts. REPLACE ONLY WITH PART NUMBER SPECIFIED. SD-Z : XY VOLTAGE (MEASURED WITH VOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL). Location of connected terminal in schematic diagrams.

  • Page 9: Packing Procedure

    A-9155 PACKING PROCEDURE A952 A951 A752 A953 A954 A506 A512 Right side A751 marking A500 Front side A506 marking Front side A503 (R & L) Left side marking A801 Front side A701 A509 marking Front side A509 A701...
  • Page 10 Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8023 Fax: 072-831-8124 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 Liegnitzerstrasse 6, 82194 Groebenzell, GERMANY Tel: +49-8142-4401-0 Fax: +49-8142-4401-555 http://www.eu.onkyo.com/...

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