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RDA-7
SERVICE MANUAL Ref NO. 3651
May 2000
Seven Channel Amplifier
RDA-7
Silver model
UPP 230 V AC
UDT 120 V AC
UPT 230 V AC
SAFETY-RELATED COMPONENT TABLE OF CONTENTS
WARNING!! 1 Cover page
2 Specifications, Supplied accesories
COMPONENTS IDENTIFIED BY MARK ON THE 3 Unpacking abd storing the packing materials
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE 4 Front panel
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. 5 Rear panel
REPLACE THESE COMPONENTS WITH ONKYO PARTS 7 Chassis-exploded view
WHOSE PART NUMBER APPEAR AS SHOWN IN THIS 8 Parts list
MANUAL. 16 Screws
MAKE LEAKAGE-CURRENT OR RESISTANCE MEA- 18 Adjustment procedures
SUREMENTS TO DETERMINE THAT EXPOSED PARTS
19 Pcboard
ARE ACCEPTABLY INSULATED FROM THE SUPPLY
20 Primary connections
CIRCUIT BEFORE RETURNING THE APPLIANCE TO
22 Circuit diagrams
1
RDA-7
Specifications
AMPLIFIER SECTION
Number of channels: 7
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.
300 watts per channel min. RMS at 4 ohms, 2 channels
driven at 1 kHz with no more than 0.1 % total harmonic
distortion.
Frequency response @ -3 dB: 3.5 Hz - 250 kHz
Input Impedance: 47 kohm each phase
Input signal for max output power:
1.2 V
Input Sensitivity (Unbalanced):
100 mVrms
Input Sensitivity (Balanced): 200 mV
THD: 0.03 %(20 Hz to 20 kHz)
Damping Factor: 40 at 8 ohm
Power consumption
USA, Canada and some Asian model:
15 A
Other models: 10 A
Rated Speaker Impedance: 4 ohms
GENERAL
Power Supply: AC 120 V, 60 Hz
AC 230 V, 50 Hz
AC 220 V, 50/60 Hz
Dimensions (W