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Integra RDA-7.1 Service Manual
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Integra RDA-7.1 Service Manual

Seven channel amplifier
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SERVICE MANUAL
SERVICE MANUAL
SEVEN CHANNEL AMPLIFIER
RDA-7.1
MODEL
ADD
120 V AC, 60Hz
APP
230-240 V AC, 50Hz
APA
230-240 V AC, 50Hz
AGT
220-230 V AC, 50/60Hz
AGK
220-230 V AC, 50/60Hz
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. 3804
ON THE
RDA-7.1
Nov, 2004

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Summary of Contents for Integra RDA-7.1

  • Page 1 RDA-7.1 Ref. No. 3804 SERVICE MANUAL SERVICE MANUAL Nov, 2004 SEVEN CHANNEL AMPLIFIER RDA-7.1 MODEL 120 V AC, 60Hz 230-240 V AC, 50Hz 230-240 V AC, 50Hz 220-230 V AC, 50/60Hz 220-230 V AC, 50/60Hz SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK...

  • Page 2: Specifications

    RDA-7.1 SPECIFICATIONS AMPLIFIER SECTION Number of channels : Power : 150 watts per channel min. RMS at 8 ohms, 2 channels driven from 20 Hz to 20 kHz with no more than 0.1 % total harmonic distortion (FTC). 300 watts per channel min. RMS at 4 ohms, 2 channels driven at 1 kHz with no more than 0.1 % total harmonic...
  • Page 3 RDA-7.1 SERVICE PROCEDURE-1 PRIMARY CONNECTIONS FOR DIFFERENT VOLTAGES AC Board Jumpers For voltages in the 100V - 120V range, install the two jumpers marked L. For voltages in the 200V - 240V range, install the single jumper marked H. Main Transformer Jumpers The following connections should be made for different line voltages.

  • Page 4: Service Procedure

    RDA-7.1 SERVICE PROCEDURE-2 PRIMARY CONNECTIONS FOR DIFFERENT VOLTAGES (Continued) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 K1-3 K2-3 K1-4 K2-4 Inrush Current Limiter Board High (RDA-7-030-A) Jumpers AC Board (RDA-7-020-B)

  • Page 5: Exploded Views

    RDA-7.1 EXPLODED VIEWS-1 OVERALL A635 UN01 UN02 UN03 <Note> A01 (Front panel ass'y) = A02 --- A08 x 3 pcs. (10mm) x 2 pcs. (14mm) x 2 pcs. x 4 pcs. x 3 pcs. (10mm) x 2 pcs. (14mm) x 2 pcs.
  • Page 6 RDA-7.1 EXPLODED VIEWS-2 AMPLIFIER MODULE (Red) (Black) (Top) (Bottom) (Base)
  • Page 7 RDA-7.1 EXPLODED VIEWS-3 SCREWS A132 A131 A130 A132 A131 A132 A131...
  • Page 8 RDA-7.1 EXPLODED VIEWS-4 SCREWS GROU...
  • Page 9 RDA-7.1 EXPLODED VIEWS-5 SCREWS...
  • Page 10 RDA-7.1 SCHEMATIC DIAGRAMS-1 POWER SUPPLY...

  • Page 11: Schematic Diagrams

    RDA-7.1 SCHEMATIC DIAGRAMS-2 DRIVER CIRCUIT C13 / C14 C17 / C20 ROB C (For audio) ROB C (For audio) C13 / C14 C17 / C20 C17a / C20a C13a / C14a...
  • Page 12 RDA-7.1 SCHEMATIC DIAGRAMS-3 OUTPUT STAGE AND PROTECTION...
  • Page 13 RDA-7.1 SCHEMATIC DIAGRAMS-4 PROTECTION...
  • Page 14 RDA-7.1 SCHEMATIC DIAGRAMS-5 AC BOARD...
  • Page 15 RDA-7.1 SCHEMATIC DIAGRAMS-6 PROTECTION WIRING...
  • Page 16 RDA-7.1 PRINTED CIRCUIT BOARD VIEWS-1 AMPLIFIER PC BOARD UN01 AMPLIFIER PC BOARD (RDA-7-010-F) Side-A (Top)
  • Page 17 RDA-7.1...
  • Page 18 RDA-7.1 PRINTED CIRCUIT BOARD VIEWS-1 AMPLIFIER PC BOARD UN01 AMPLIFIER PC BOARD (RDA-7-010-F) Side-A (Top)
  • Page 19 RDA-7.1 PRINTED CIRCUIT BOARD VIEWS-2 AMPLIFIER PC BOARD UN01 AMPLIFIER PC BOARD (RDA-7-010-F) Side-B (Bottom)
  • Page 20 RDA-7.1...
  • Page 21 RDA-7.1 PRINTED CIRCUIT BOARD VIEWS-2 AMPLIFIER PC BOARD UN01 AMPLIFIER PC BOARD (RDA-7-010-F) Side-B (Bottom)

  • Page 22: Adjustment Procedure

    RDA-7.1 ADJUSTMENT PROCEDURE-1 BIAS & DC Offset Adjustment Connect the assembled channel to the power transformer. Connect the power cord into an AC wall outlet. Turn ON the unit. After about 3 seconds the two green LED's should turn ON.
  • Page 23 RDA-7.1 ADJUSTMENT PROCEDURE-2 Final Assembly Check Check the screw which is the fixation of AMPLIFIER MODULE when the electric conductivity between 1 and 2 is ruined. FUSE AC INLET 12V TRIGGER Rear panel...
  • Page 24 1/4 PAGE RDA-7.1 <Note> Parts marked by " NSP" are generally unavailable because they are not in our Master Spare Parts List. NOTE : THE COMPONENTS IDENTIFIED BY THE MARK ARE CRITICAL FOR RISK OF FIRE AND <ADD> : DD ELECTRIC SHOCK.
  • Page 25 EXPLODED UN02 AC BOARD (RDA-7-020-B) 70-ONK-0002 EXPLODED UN03 INRUSH CURRENT LIMITER BOARD (RDA-7-030-A) EXPLODED RDA-7.1 PRINTED CIRCUIT BOARD PARTS LIST UN01 AMPLIFIER PC BOARD (RDA-7-010-F) CIRCUIT NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) MARKS LP2951CN (Voltage Regulator) 48-0097 PCB01...
  • Page 26 PCB02 DIODE SWITCHING 1N4150 48-0025 PCB02 SEL2E10C (BLUE) 225374 PCB02 FUSE LITTLE FUSE R251 001 F826-ND 43-0043 PCB02 TRANSFORMER MICROTRAN MT3101 56-0168 PCB02 RELAY 821-W-1A-C 12V DC 51-0009 PCB02 RELAY 821-W-1A-C 12V DC 51-0009 PCB02 RDA-7.1 PACKING PROCEDURE PARTS LIST...
  • Page 27 4/4 PAGE REF. NO. PART NAME DESCRIPTION Q'TY PART NO. (SN) MARKS INNER CARTON RDA-7.1 34-ONK-0001 PACKING L & R 34-ONK-0003 PACKING POLY BAG 34-0010 PACKING WARNING LABEL PACKING LABEL (PE-LD) 29361573 PACKING TAPE (SEROHAN) NITTO NO.29 (1) 29110149 PACKING...
  • Page 28 RDA-7.1 PACKING PROCEDURE-1 INNER CARTON FRONT SIDE Inner carton Inner carton...
  • Page 29 RDA-7.1 PACKING PROCEDURE-2 OUTER CARTON Inner carton Outer carton...
  • Page 30 RDA-7.1 Integra Research Division of ONKYO CORPORATION Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8023 Fax: 072-831-8124 http://www.onkyo.com/ Integra Research Division of ONKYO U.S.A. CORPORATION 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A.