Integra DTR-6.3 User Manual

DTR-6.3
SERVICE MANUAL
SERVICE MANUAL
AV RECEIVER
Black model
MODEL DTR-6.3
120V AC, 60HzBMDD
Ref. No. 3733
June, 2002
RC-481M
SAFETY-RELATED COMPONENT
WARNING!!
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
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.

Integra DTR-6.3 Specifications

General

THX Certified	No
Total Harmonic Distortion	0.08 %
Digital Sound Processor (DSP)	Yes
Output Channel Qty	7
Tuner Bands	AM/FM
Preset Station Qty	40
Input Impedance	47 kΩ
Input Sensitivity	200 mV
Tuning Range	AM: 530 - 1710 kHz, FM: 87.5 - 108 MHz
Connector Type	RCA, HDMI, Optical, Coaxial, USB, Ethernet
Width	17.1 in
Height	6.8 in
Video Inputs/Outputs	HDMI input/output
Audio Inputs/Outputs	audio line-in, audio line-out, headphones

Summary

Safety-Related Component Warning

Specifications

Amplifier Section Specifications

Detailed electrical and performance specifications for the amplifier section.

Tuner Section Specifications

Performance specifications for the FM and AM tuner sections.

General and Remote Controller Specifications

Power supply, dimensions, weight, and remote controller specifications.

Service Procedures

Replacing Fuses

Instructions for replacing fuses, emphasizing using the correct type.

Initializing the Unit

Procedure to reset the unit to factory settings via button combination.

Safety Check-out Procedure

Post-service safety check for insulating resistance on USA models.

Memory Preservation Explanation

Explanation of the unit's memory backup system and its limitations.

Exploded View Parts List

Critical Component Notes

Important notes regarding transistor replacement and critical components.

Block Diagram

Digital, Audio, and Video Input Signal Paths

Diagram showing signal flow for digital, audio, and video inputs.

Block Diagram (Continued)

Multichannel Input, Remote, and Output Signal Paths

Diagram showing multichannel inputs, remote sensor, and output signal flow.

Printed Circuit Board View: Component Video Terminal (U6)

Printed Circuit Board View: Video Terminal (U5)

Printed Circuit Board Views: Power Supply & Output Sections

U17 Secondary Circuit PC Board Layout

Layout of the secondary circuit PC board (U17).

U18 Pre-output PC Board Layout

Layout of the pre-output PC board (U18).

U30 AC Inlet PC Board Layout

Layout of the AC inlet PC board (U30).

U29 Terminal PC Board Layout

Layout of the terminal PC board (U29).

Printed Circuit Board Views: Speaker Terminal & Primary Circuit

U16 Speaker Terminal PC Board Layout

Layout of the speaker terminal PC board (U16).

U24 Primary Circuit PC Board Layout

Layout of the primary circuit PC board (U24).

Printed Circuit Board View: Power Amplifier Section 3 (U15)

Printed Circuit Board Views: Power Amplifier Section 2 & Thermal Detector

U15 Power Amplifier PC Board (Section 2) Layout

Layout of the power amplifier PC board (U15), section 2.

U20 Thermal Detector PC Board Layout

Layout of the thermal detector PC board (U20).

Printed Circuit Board View: Driver Circuit PC Board (U23)

Printed Circuit Board Views: Input/Output Sections

U14 Equalizer Amplifier PC Board Layout

Layout of the equalizer amplifier PC board (U14).

U28 A-bus Circuit PC Board Layout

Layout of the A-bus circuit PC board (U28).

U10 RS232C Terminal PC Board Layout

Layout of the RS232C terminal PC board (U10).

Printed Circuit Board Views: Front Panel Section

U8 Front Video PC Board Layout

Layout of the front video PC board (U8).

U4 Headphone Terminal PC Board Layout

Layout of the headphone terminal PC board (U4).

U11 Front Optical Input PC Board Layout

Layout of the front optical input PC board (U11).

Printed Circuit Board View: Main Circuit PC Board (DSP Section)

Printed Circuit Board View: Main Circuit PC Board (DSP Section Part 2)

Printed Circuit Board View: Main Circuit PC Board (DSP Section Part 3)

Printed Circuit Board View: Main Circuit PC Board (DSP Section Part 4)

Printed Circuit Board Views: Soldering Side (1-2)

U3 Volume PC Board (Soldering Side) Layout

Soldering side layout of the volume PC board (U3).

U2 Display Circuit PC Board (Soldering Side) Layout

Soldering side layout of the display circuit PC board (U2).

Printed Circuit Board View: Display Circuit PC Board (Soldering Side 1-1)

Schematic Diagram: Display Section (1-1)

Schematic Diagram: Display Section (1-2)

Schematic Diagram: DSP Section (2-1)

Schematic Diagram: DSP Section (2-2)

Schematic Diagram: DSP Section (2-3)

Schematic Diagram: DSP Section (2-4)

Schematic Diagrams: Front Panel Section

Schematic: U8 Front Video PC Board

Schematic diagram for the front video PC board (U8).

Schematic: U4 Headphone Terminal PC Board

Schematic diagram for the headphone terminal PC board (U4).

Schematic: U11 Front Optical Input PC Board

Schematic diagram for the front optical input PC board (U11).

Schematic Diagram: Power Amplifier Section 1 (U23)

Schematic Diagrams: Power Amplifier Section 2 & Thermal Detector

Schematic: U15 Power Amplifier PC Board (Section 2)

Schematic diagram for the power amplifier PC board (U15), section 2.

Schematic: U20 Thermal Detector PC Board

Schematic diagram for the thermal detector PC board (U20).

Schematic Diagram: Power Amplifier Section 3 (U15)

Schematic Diagrams: Power Amplifier Section 4 & Thermal Detector

Schematic: U15 Power Amplifier PC Board (Section 4)

Schematic diagram for the power amplifier PC board (U15), section 4.

Schematic: U20 Thermal Detector PC Board

Schematic diagram for the thermal detector PC board (U20).

Schematic Diagrams: Power Supply Section

Schematic: U30 AC Inlet PC Board

Schematic diagram for the AC inlet PC board (U30).

Schematic: U24 Primary Circuit PC Board

Schematic diagram for the primary circuit PC board (U24).

Schematic: U17 Secondary Circuit PC Board

Schematic diagram for the secondary circuit PC board (U17).

Schematic: U29 Terminal PC Board

Schematic diagram for the terminal PC board (U29).

Schematic Diagrams: Output Section

Schematic: U16 Speaker Terminal PC Board

Schematic diagram for the speaker terminal PC board (U16).

Schematic: U18 Pre Out PC Board

Schematic diagram for the pre out PC board (U18).

Schematic Diagrams: Various Circuit Boards

Schematic: U7 A-Bus Circuit PC Board

Schematic diagram for the A-Bus circuit PC board (U7).

Schematic: U10 RS232C Terminal PC Board

Schematic diagram for the RS232C terminal PC board (U10).

Schematic: U14 Video Terminal PC Board

Schematic diagram for the video terminal PC board (U14).

Schematic: U26 Connector PC Board

Schematic diagram for the connector PC board (U26).

PC Board Connection Overview

Tuner Unit and Front Panel Connections

Connections for the tuner unit (U36) and front panel boards (U8, U11).

Main CPU and Bus Connections

Connections for the main CPU (U1), A-Bus (U7), and RS232C (U10) boards.

Audio and Video Input/Output Connections

Connections for volume (U3), headphone (U4), video (U5, U6), and phono (U14) boards.

Power Amplifier and Speaker Connections

Connections for power amplifier (U15, U23), speaker terminal (U16), and pre-out (U18) boards.

PC Board Interconnections Overview

Power Supply and Secondary Circuit Connections

Connections for primary (U29), secondary (U17), AC inlet (U30), and power (U24) boards.

Video, Audio, and Bus Connections

Connections for component video (U6), phono (U14), A-Bus (U7), and RS232C (U10) boards.

Amplifier and Speaker Output Connections

Connections for speaker terminal (U15, U16) and pre-out (U18) boards.

Front Panel and Driver Circuit Connections

Connections for front panel (U8, U11) and driver circuit (U23) boards.

Wiring Diagram: Board Interconnections

Power Supply and Speaker Output Wiring

Wiring details for AC inlet, primary/secondary circuits, and speaker terminals.

Main CPU and Input/Output Wiring

Wiring for main circuit board, A-BUS, RS232C, and various input/output terminals.

Amplifier and Front Panel Wiring

Wiring for power amplifier sections, driver circuit, and front panel components.

Display and Tuner Wiring

Wiring for the display circuit, tuner unit, and thermal detector.

Wiring Diagram: PC Board Connections

Main CPU, Driver, and Output Board Connections

Connections for main circuit (U1), driver (U23), and output boards (U18, U15, U16).

Front Panel and Tuner Connections

Connections for front panel (U8, U11), tuner (U6), and volume (U3) boards.

DSP and Bus Interface Connections

Connections for DSP (U1), RS232C (U10), A-Bus (U7), and video terminal (U5, U14) boards.

Connector and Thermal Detector Wiring

Wiring for connector (U26) and thermal detector (U20) boards.

Main Circuit PC Board Parts List (NADG-7460-1R)

Main Circuit Board ICs and Capacitors

List of integrated circuits and capacitors for the main circuit board.

Main Circuit Board Transistors and Diodes

List of transistors and diodes for the main circuit board.

Main Circuit Board Oscillators, Coils, and Terminals

List of oscillators, coils, terminals, sockets, and cushions for the main board.

Printed Circuit Board Parts List 2

Parts Lists for Volume and Headphone Boards

Parts for volume (U3) and headphone terminal (U4) PC boards.

Parts Lists for Video, A-Bus, and Equalizer Boards

Parts for video (U5), A-Bus (U7), and equalizer amplifier (U14) PC boards.

Printed Circuit Board Parts List 3

Parts for A-Bus Circuit and Equalizer Amplifier Boards

Parts for the A-Bus circuit (U7) and equalizer amplifier (U14) boards.

Printed Circuit Board Parts List 4

Power Amplifier PC Board Parts (NAAF-7474-1P)

List of transistors, diodes, and capacitors for the power amplifier board.

Front Video PC Board Parts

Parts list for the front video PC board (NAVD-7468-1P).

Printed Circuit Board Parts List 5

Parts for Secondary Circuit and Pre-Output Boards

Parts list for secondary circuit (NAPS-7477) and pre-output terminal boards.

Parts for Thermal Detector and Driver Circuit Boards

Parts list for thermal detector (NAETC-7480) and driver circuit (NAAF-7483) boards.

Parts for Speaker Terminal Board

Parts list for the speaker terminal PC board (NAETC-7476).

Printed Circuit Board Parts List 6

Parts for Connector PC Board (NAETC-7486-1T)

Parts list for the connector PC board.

Parts for Primary Circuit PC Board (NAPS-7484-1T)

Parts list for the primary circuit PC board.

Packing Procedures

Accessory Bag Contents

List of items included in the accessory bag, such as cables and manuals.