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Onkyo HT-R591B User Manual

Onkyo HT-R591B
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HT-R591
SERVICE PROCEDURE-3
Resistor
Top
5. Notes on repairs (Power supply board)
Some parts on BAPS-1120 may remain high voltages
even after the power cord is disconnected from AC power source.
Before starting repair and any other work , please discharge C9002 by connecting resistors between its terminals. See the figure below
(recommended resistor spec: 5 k ohms/ 10W)
It is dangerous to touch the "HIGH VOLTAGE PRIMARY" area surrounded by white lines without discharging.
U0080
POWER SUPPLY(PRI) PC BOARD ASS'Y
BAPS-1120
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Onkyo HT-R591B Specifications

General IconGeneral
HDMI Outputs1
FM TunerYes
3D SupportYes
Audio Return Channel (ARC)Yes
BluetoothNo
Wi-FiNo
Audio Formats SupportedDolby TrueHD, DTS-HD Master Audio
Inputs6 HDMI, 3 digital (2 optical, 1 coaxial), 4 analog
Outputs1 HDMI, 1 subwoofer, 1 headphone
HDMI Inputs6 (Rear)

Summary

Service Procedures - Core Operations

Replacing Fuses

Details fuse replacement, including type and safety precautions.

Safety Check Out

Procedure for leakage current measurement on US models.

Unit Initialization

Steps to reset the unit to factory default settings.

Service Procedures - Firmware Checks

Check Firmware Version

Guide to checking firmware versions of Main, DSP, and HDMI microprocessors.

Service Procedures - Power Supply Safety

Power Supply Board Repair Notes

Warnings and safety instructions for repairing the power supply board.

Debug Modes - Audio System

Audio Debug Mode - Firmware Check

Accessing debug mode to check firmware versions of key components.

Debug Modes - Audio System Parameters

Audio Debug Mode - Display Contents

Explains display parameters for DIR, DSP, and CODEC in debug mode.

Debug Modes - DSP Port Status

DSP Port States Description

Details meanings of DSP PORT states like NIC, DEC, SPI Busy, and Exec wait.

Debug Modes - DSP Sequence Troubleshooting

DSP Sequence Description (1/2)

Describes DSP Sequence states and potential causes for issues.

Debug Modes - DSP Sequence Troubleshooting

DSP Sequence Description (2/2)

Continues DSP Sequence state descriptions and troubleshooting guidance.

Debug Modes - HDMI System

HDMI Debug Mode - Resolution Check

Guide to checking HDMI operations and resolution display formats.

Debug Modes - HDMI Input/Output

HDMI Debug Mode - Input/Output Resolution

Displays input/output resolutions for DVI and VGA signals in HDMI debug.

Debug Modes - HDMI Advanced Features

HDMI Debug Mode - 4K Upscaling

Details 4K upscaling, resolutions, and error indicators in HDMI debug.

Debug Modes - HDMI Status and Format

HDMI Debug Mode - Status and Format

Explains status displays for resolution, 3D format, and color depth.

Debug Modes - HDMI 3D Formats

HDMI Debug Mode - 3D Format Details

Describes various 3D format types and input/output status indicators.

Debug Modes - HDMI PC and EDID

HDMI Debug Mode - PC Resolution and EDID

Covers PC resolution, DVI/HDMI status, and EDID read results.

Operation Checks - Protectors and Basic Functions

Protector and Sensor Operations

Tests for voltage/current protectors, output, and thermal sensors.

RDS and Headphone Functionality

Verifies RDS reception and headphone auto-switching.

USB Connectivity Check

Tests iPod connectivity and AVR response via USB port.

Operation Checks - HDMI and Video Systems

HDMI Output and Audio/Video Checks

Confirms HDMI OSD, audio signals (I2S, SPDIF), and video output.

Miscellaneous Operations Check

Verifies LED/FL display, key operation, firmware, and DSP flash checks.

Operation Checks - Test Modes

Test Mode - Model/Destination/FL Display

How to enter test mode for model, destination, and FL display checks.

Test Mode - Operation Verification

Procedures for entering and using various operation test modes.

Operation Checks - Test Mode Details

Test Mode Operation Continuation

Detailed test modes for input signals and speaker output checks.

Operation Checks - Auto Measurement

Test Mode - Auto Measurement

Auto measurement tests for DSP output, including protection circuit checks.

Operation Checks - Video and HDMI

Video and HDMI Test Modes

Confirms video output signals and HDMI interface operations.

Firmware Update - Preparation

Version Check Procedure

Steps to check the current firmware version using a USB device.

USB Storage Preparation

Instructions for preparing the USB storage device for firmware update.

Firmware Update - USB Procedure

Performing the USB Update

Step-by-step guide to update firmware via USB storage.

Exploded Views - Overall Assembly

Overall Unit Exploded View

Diagram showing the exploded view of the entire unit's assembly.

Exploded Views - Heat Sink and Rear Panel

Heat Sink and Rear Panel Exploded View

Exploded view detailing heat sink and rear panel components.

Exploded Views - Front Panel

Front Panel Exploded View

Exploded view illustrating the front panel and its components.

Schematic Diagrams - Audio Section

Audio Block Diagram

Block diagram illustrating the audio signal path and key components.

Schematic Diagrams - Video Section

Video Block Diagram

Block diagram showing video signal flow, including HDMI and component inputs.

Schematic Diagrams - Digital Audio Section

Digital Audio Block Diagram

Block diagram of digital audio processing, including DIR/ADC and DAC.

Schematic Diagrams - Amplifier Section

Amplifier Section Schematics

Circuit diagrams for the amplifier stages and related components.

Schematic Diagrams - Amplifier and Power Supply

Amplifier and Power Supply Schematics

Circuit diagrams for the amplifier and power supply sections.

Schematic Diagrams - Class-A Amplifier

Class-A Amplifier Schematics

Circuit diagrams for the Class-A amplifier, including bias adjustment.

Schematic Diagrams - Video Section

Video Section Schematics

Circuit diagrams for the video processing and signal routing.

Schematic Diagrams - Speaker Output

Speaker Output Section Schematics

Circuit diagrams for speaker terminals and protection circuitry.

Schematic Diagrams - Display Section

Display Section Schematics

Circuit diagrams for the front panel display and control logic.

Schematic Diagrams - Power Supply

Power Supply Section Schematics

Circuit diagrams for the power supply unit, including transformers and regulators.

Schematic Diagrams - HDMI PC Board

HDMI PC Board Schematics

Circuit diagrams for the main HDMI processing board.

Schematic Diagrams - HDMI PC Board

HDMI PC Board Schematics

Detailed circuit diagrams for the HDMI interface and controller.

Schematic Diagrams - TQFP PC Board

TQFP PC Board Schematics

Circuit diagrams for the TQFP PC board, connecting to the MICOM section.

Exploded View Parts List - Semiconductors

Semiconductor Parts List (Transistors)

List of semiconductor components (transistors) with part numbers.

Exploded View Parts List - Chassis and Cabinet

Chassis Screws Parts List

List of screws, clips, and mounting hardware for chassis assembly.

Cabinet Components Parts List

List of cabinet parts, including knobs, badges, and cosmetic panels.

Exploded View Parts List - Tuner and PC Boards

Tuner Unit Parts List

List of components specific to the tuner module.

PC Board Assemblies List

List of main printed circuit board assemblies.

Exploded View Parts List - PC Boards and Semiconductors

Semiconductor Parts List (Diodes)

List of diodes used in the unit's circuitry.

Exploded View Parts List - Semiconductors (Diodes)

Semiconductor Parts List (Diodes)

Continuation of the diode parts list.

Exploded View Parts List - Transistors and ICs

Semiconductor Parts List (Transistors and ICs)

List of transistors and integrated circuits.

Exploded View Parts List - Capacitors

Capacitor Parts List

List of various types and values of capacitors.

Exploded View Parts List - Resistors

Resistor Parts List

List of carbon resistors.

Exploded View Parts List - Resistors

Resistor Parts List

Continuation of the resistor parts list.

Exploded View Parts List - Resistors

Resistor Parts List

Continuation of the resistor parts list.

Exploded View Parts List - Resistors

Resistor Parts List

Continuation of the resistor parts list.

Exploded View Parts List - Switches and Terminals

Switches, Terminals, and Plugs Parts List

List of switches, terminals, and connectors.

Exploded View Parts List - Tuner Unit

Tuner Unit Parts List

List of components specific to the tuner module.

Exploded View Parts List - Semiconductors

Semiconductor Parts List

Semiconductor parts list for display and tuner sections.

Exploded View Parts List - Capacitors

Capacitor Parts List

Continuation of semiconductor parts list, focusing on capacitors.

Exploded View Parts List - Resistors

Resistor Parts List

Continuation of semiconductor parts list, focusing on resistors.

Exploded View Parts List - Resistors

Resistor Parts List

Continuation of semiconductor parts list, focusing on resistors.

Exploded View Parts List - Switches

Switches, Terminals, and Plugs Parts List

Semiconductor parts list including resistors and switches.

Exploded View Parts List - Coils

Choke Coils Parts List

Semiconductor parts list including diodes and choke coils.

Exploded View Parts List - Capacitors

Capacitor Parts List

List of capacitors.

Exploded View Parts List - Capacitors

Capacitor Parts List

Continuation of the capacitor parts list.

Exploded View Parts List - Semiconductors (Diodes)

Semiconductor Parts List (Diodes)

Semiconductor parts list including diodes.

Exploded View Parts List - Semiconductors (ICs, Transistors)

Exploded View Parts List - Capacitors

Capacitor Parts List

Semiconductor parts list covering ICs, transistors, and capacitors.

Exploded View Parts List - Resistors

Resistor Parts List

Semiconductor parts list covering capacitors and resistors.

Exploded View Parts List - Resistors

Resistor Parts List

List of resistors.

Exploded View Parts List - Resistors

Resistor Parts List

Continuation of resistor parts list.

Exploded View Parts List - Semiconductors

Semiconductor Parts List (Diodes, ICs, Transistors)

Semiconductor parts list for diodes, ICs, and transistors.

Exploded View Parts List - Transformer Coils

Transformer Coils Parts List

List of transformer coil components.

Exploded View Parts List - Capacitors

Capacitor Parts List

List of capacitors.

Exploded View Parts List - Capacitors

Capacitor Parts List

Continuation of capacitor parts list.

Exploded View Parts List - Capacitors

Capacitor Parts List

Continuation of capacitor parts list.

Exploded View Parts List - Capacitors

Capacitor Parts List

Continuation of capacitor parts list.

Exploded View Parts List - Capacitors

Capacitor Parts List

Continuation of capacitor parts list.

Exploded View Parts List - Resistors

Resistor Parts List

List of resistors.

Exploded View Parts List - Resistors

Resistor Parts List

Continuation of resistor parts list.

Exploded View Parts List - Resistors

Resistor Parts List

Continuation of resistor parts list.

Exploded View Parts List - Switches

Switches, Terminals, and Plugs Parts List

List of switches, terminals, and plugs.

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