Onkyo TX 8020 Service Manual

Page 1

Ref. No. 4449

ONKYO® SERVICE MANUAL 2°

STEREO RECEIVER

MODEL TX-8020(B)/(S)

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u I W M 3mm

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RC-8758
Black and Silver models
B MDC 120V AC, 60Hz
B MPP, S MPP 230V AC, 50Hz
Features

SAFETY-RELATED COMPONENT
WA R N I N G ! !

COMPONENTS IDENTIFIED BY MARK A 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 CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

50 Watts/Channel @ 8 0 (FTC) (For North American Model)
90 Watts/Channel @ 6 Q (IEC) (For European Model)
WRAT (Wide Range Amplifier Technology)

Discrete Amplifier Output Stage Circuitry

Massive El Transformer

High-Current, Low-Impedance Drive

Direct Mode

5 Analog Audio Inputs and 1 Output

3 Digital Audio Inputs (1 Optical, 2 Coaxial) (European Model only)
Phono Input for Turntable Connection

Independent Bass, Treble, and Balance Controls
Subwoofer Pre-Out

Speaker A/B Terminals

Remote Interactive (RI) Input for Integrated Control of Compatible
Onkyo Components

Headphone Jack

40 FM/AM Random Presets

Preset Station Naming (Up to 8 Characters)

RDS (PS/PTY/RT) (European Model only)

3-Mode Display Dimmer (Normal/Dim/Dimmer)

Sleep Timer (via Remote)

Battery-Free Memory Back-up

Full-Sized, Full-Function RI Remote Control

Onkyo Corporation
Service Department