Onkyo TX-3000 Service Manual

SERIAL NO. 3074
ONKYO.
SERVICE
MANUAL
SERVO LOCKED
FM/AM STEREO RECEIVER
MODEL TX-3000
1990 an OX Ct
D model G/W model
POAQONONO
mm
ONE

Onkyo TX-3000 Specifications

General

Brand	Onkyo
Model	TX-3000
Category	Stereo Receiver
Language	English

Summary

SPECIFICATIONS

AMPLIFIER SECTION

Details output power, distortion, damping factor, RIAA deviation, and sensitivity.

TUNER SECTION

Covers FM/AM tuning range, usable sensitivity, capture ratio, and image/IF rejection ratios.

GENERAL SPECIFICATIONS

DISASSEMBLY PROCEDURES

SERVICE PROCEDURES

EXPLODED VIEW PARTS LIST

ALIGNMENT PROCEDURES

Instruments and Conditions

Lists required instruments and general conditions for alignment procedures.

AM IF and RF Alignment

Step-by-step guides for AM IF and RF alignment.

FM Front End Alignment

Initial steps for FM front end alignment.

FM ALIGNMENT PROCEDURES

FM FRONT END ALIGNMENT (Continued)

Details FM alignment steps and adjustments for front end.

MULTIPLEX ALIGNMENT PROCEDURE

Guide for stereo multiplex alignment, including pilot signals.

IC BLOCK DIAGRAMS AND EQUIVALENT CIRCUITS

HA-1137 Block Diagram

LA3350 Block Diagram

PRINTED CIRCUIT BOARD PARTS LIST (D/W Model)

SCHEMATIC DIAGRAM (TX-3000 D Model)

SCHEMATIC DIAGRAM (TX-3000 G Model)

CIRCUIT DESCRIPTION

Touch Sensor Operation

Describes touch sensor function for meter and servo lock, including hum effects.

Servo Locked Circuit Switching

Power/Signal Strength Meter Function

Protection Circuit Operation

Explains the operation of the protection circuit, including power-on delay and voltage detection.

Muting and Servo Lock Circuits