Onkyo HT-R540

HT-R540
SERVICE MANUAL
SERVICE MANUAL
AV RECEIVER
Black and Silver models
MODEL HT-R540
Ref. No. 3940
042006
120V AC, 60Hz
120V AC, 60Hz
230-240V AC, 50Hz
B MDD
B MDC
B MPA
---
120V AC, 60Hz
230-240V AC, 50Hz
---
S MDC
S MPA
RC-649M
MASTER VOLUME
VIDEO
STANDBY
TONE DISPLAYSTEREO DIMMER MEMORY
DIGITAL
INPUT
TUNING
MODEAB
SPEAKERS
TUNERTAPE
VIDEO
3VIDEO 2VIDEO 1
VCR
DVDMULTI CH C
D
SETUPRETURN
CLEAR
LISTENING MODE
AUDIOLR
VIDEO 3 INPUT
STANDBY/ON
PHONES
TUNING PRESET
ENTER
MUTING
PREVIOUS
MENU
GUIDE
TOP MENU
SP A / B
SETUPRETURN
PLAYLIST/CAT PLAYLIST/CAT
RANDOM SUBTITLE
PLAY MODE
AUDIO REPEAT
RC
-
649M
--
/
---
TAPE
M
D/CDR
HDD
CABLE
ON/STANDBY
DIMMER
ENT D TUN
SLEEP
10 11 12
INPUT SELECTOR
HDD
DVDVCR
REMOTE MODE
V 1 V 2 V 3
C DTAPE TUNER
DVD
MULTI CH
LISTENING MODE
TV
DISPLAY OR-EQ
TEST TONE CH SEL
SURROUND STEREO
CINE FLTR
LEVEL
+
LEVEL
-
L NIGHT
VOL
VOL
SAT
VCR
TV
DVD
RECEIVER
C D
INPUT
+
10
0
CLR
123
456
789
ENTER
CH
DISC
ALBUM
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.

Onkyo HT-R540 Specifications

General

Channels	5.1
HDMI Inputs	4
HDMI Outputs	1
Tuning range	FM/AM
Input Sensitivity and Impedance	200 mV / 47 kΩ
Audio Decoding	Dolby TrueHD, DTS-HD Master Audio
Bluetooth	No
USB Port	No
Total Harmonic Distortion	0.08%
Frequency Response	10 Hz - 100 kHz
Inputs	4 x HDMI, 1 x Optical, 1 x Coaxial, 2 x Analog
Outputs	1 HDMI, 1 subwoofer, 1 headphone
Digital Audio Inputs	1 x Optical, 1 x Coaxial
Signal-to-Noise Ratio	100 dB
Power Output (per channel)	160W (6 ohms, 1 kHz, 1% THD, 1 channel driven)

Summary

Onkyo HT-R540 Service Manual

Safety-Related Component Warning

Warning about components identified by mark for risk of fire and electric shock.

Service Procedures

Replacing Fuses

Instructions for replacing fuses, emphasizing the use of slow-operating types.

Unit Initialization

Procedure to initialize the unit, resetting preset memory and modes to factory settings.

Operation Check 1: Speaker Protect (DC Voltage Detection)

Operation Check 1 Procedure

Step-by-step guide to perform speaker protection check via DC voltage detection.

Operation Check 2: Speaker Protect (Current Detection)

Operation Check 2 Procedure

Procedure for checking speaker protection via current detection using dummy loads.

Operation Check 3: Power Supply Control (Sensors)

Output Sensor Check

Procedure to check the output sensor function, including confirmation of relay status.

Thermal Sensor Check

Procedure to check the thermal sensor by verifying temperature display accuracy.

Operation Check 4: Debug Mode-1

Entering Debug Mode-1

Steps to enter Debug Mode-1 for checking DSP and DIR functions via FL display.

Operation Check 5: Debug Mode-2 (Trouble Cause Analysis)

Debug Mode-2 Trouble Cause Analysis

Table correlating FL display symptoms in debug mode with potential causes and checks.

Exploded Views-1: Component Layout

Block Diagrams-1: Audio Section

Block Diagrams-2: Video Section

Schematic Diagrams-1: Audio Input Section

Schematic Diagrams-2: Power Amplifier Section

Schematic Diagrams-3: DSP & Microprocessor Section

Schematic Diagrams-4: Video Section

Schematic Diagrams-5: Speaker Terminal Section

Schematic Diagrams-6: XM Digital Transceiver Section

Schematic Diagrams-7: Display Section

Schematic Diagrams-8: Power Supply Section

Power Supply Caution

Caution regarding fuse replacement and symbol interpretation for fire hazard protection.

Schematic Diagrams-9: Digital Audio Wave Form Section

Printed Circuit Board Views-1: Amplifier PC Board (Component Side)

Printed Circuit Board Views-2: Amplifier PC Board (Soldering Side)

Printed Circuit Board Views-3: Terminal and Thermal Boards

Trans Sec. Terminal PC Board (ComponentSoldering Side)

Component and soldering side views of the Trans Sec. Terminal PC Board (NAPS-8780).

Thermal Sensor PC Board (Component Side)

Component side view of the Thermal Sensor PC Board (NAETC-8781).

Printed Circuit Board Views-4: Display PC Board (Component Side)

Printed Circuit Board Views-5: Display PC Board (Soldering Side)

Printed Circuit Board Views-6: Switch PC Board

Printed Circuit Board Views-7: Power Supply and Trans Sec. Terminal Boards

Power Supply PC Board (Component Side)

Component side view of the Power Supply PC Board (NAPS-8787).

Trans Sec. Terminal PC Board (ComponentSoldering Side)

Component and soldering side views of the Trans Sec. Terminal PC Board (NAETC-8788).

Headphone Jack PC Board (Component Side)

Component side view of the Headphone Jack PC Board (NAETC-8790).

Printed Circuit Board Views-8: DSP & Microprocessor PC Board (Side-A)

Printed Circuit Board Views-9: DSP & Microprocessor PC Board (Side-B)

Printed Circuit Board Views-10: XM Transceiver PC Board

Printed Circuit Board Views-11: Video & Speaker Terminal PC Board (Component Side)

IC Block Diagrams & Terminal Descriptions-1: Q201 DSP

IC Block Diagrams & Terminal Descriptions-2: Q201 DSP System Diagram

IC Block Diagrams & Terminal Descriptions-3: Q201 DSP Pin Configuration

IC Block Diagrams & Terminal Descriptions-4: Q201 EMIF Terminal Description (14)

IC Block Diagrams & Terminal Descriptions-5: Q201 EMIF Terminal Description (24)

IC Block Diagrams & Terminal Descriptions-6: Q201 Serial Port Terminal Description (34)

IC Block Diagrams & Terminal Descriptions-7: Q201 ClockPowerReset Terminal Description (44)

IC Block Diagrams & Terminal Descriptions-8: Q281 SDRAM Block Diagram

IC Block Diagrams & Terminal Descriptions-9: Q281 SDRAM Terminal Description (12)

IC Block Diagrams & Terminal Descriptions-10: Q282 Flash Memory Block Diagram

IC Block Diagrams & Terminal Descriptions-11: Q282 Flash Memory Pin Configuration & Terminal Description

IC Block Diagrams & Terminal Descriptions-12: Q301 Codec Block Diagram

IC Block Diagrams & Terminal Descriptions-13: Q301 Codec Pin Configuration

IC Block Diagrams & Terminal Descriptions-14: Q301 Codec Terminal Description (23)

IC Block Diagrams & Terminal Descriptions-15: Q301 Codec Terminal Description (33)

IC Block Diagrams & Terminal Descriptions-16: Q3001 Video SW Block Diagram

IC Block Diagrams & Terminal Descriptions-17: Q3001 Video SW Terminal Description (12)

IC Block Diagrams & Terminal Descriptions-18: Q3001 Video SW Terminal Description (22)

IC Block Diagrams & Terminal Descriptions-19: Q3001 Video SW Pin Configuration

IC Block Diagrams & Terminal Descriptions-20: Q5501 VolumeSelectorTone System Block Diagram

IC Block Diagrams & Terminal Descriptions-21: Q5501 VolumeSelectorTone Block Diagram & Pin Configuration

IC Block Diagrams & Terminal Descriptions-22: Q5501 VolumeSelectorTone Terminal Description

IC Block Diagrams & Terminal Descriptions-23: Q7003 FL Tube Driver Block Diagram

IC Block Diagrams & Terminal Descriptions-24: Q2001 XM Digital Transceiver Block Diagram

IC Block Diagrams & Terminal Descriptions-25: Q2001 XM Digital Transceiver Terminal Description (12)

IC Block Diagrams & Terminal Descriptions-26: Q2001 XM Digital Transceiver Terminal Description (22)

IC Block Diagrams & Terminal Descriptions-27: Q2002 DAC Block Diagram & Terminal Description

FL Tube View: Q7001 Display Segments

Microprocessor Terminal Descriptions-1: Q701 Pin Details

Microprocessor Terminal Descriptions-2: Q701 Pin Details Continued

Adjustment Procedure-1: Idling Current Adjustment

When to Perform Idling Current Adjustment

Conditions requiring idling current adjustment, such as transistor or PC board replacement.

Idling Current Adjustment Procedure

Step-by-step guide to adjust idling current using a DC voltmeter and trimming resistors.

Adjustment Procedure-2: Idling Current Adjustment Details

Exploded View Parts List: General Components

PC Board Parts List: Major Assemblies