Onkyo TX-NR747 Service Manual

Service Manual
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 MESUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY
INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE
CUSTOMER.
Published by Onkyo & Pioneer Corporation Grobal CS Department
TX-NR545
AV RECEIVER
Ref.No. : ４５１９
✔ Pre Issue (15-May)
✔ Final Issue (15-Jun)
CONTENTS
✔ Front Cover (This page)
✔ Note for Parts List
✔ Panel
✔ Reset
✔ Amp Diag Mode after Abnormal Conditions
✔ Model and Destination
✔ Firmware
✔ Adjustment ( Unnecessary )
✔ Hookup and Setting
✔ Trouble Shoot
✔ Disassembly
✔ Schematic Diagram
✔ Exploded View
✔ Appendix

Onkyo TX-NR747 Specifications

General

Impedance	16 Ω
Receiver type	Surround
Frequency range	10 - 100000 Hz
Input sensitivity	200 mV
Audio output channels	7.2 channels
Signal-to-Noise Ratio (SNR)	100 dB
Dynamic power per channel (3 Ohm)	250 W
Dynamic power per channel (4 Ohm)	230 W
Dynamic power per channel (8 Ohm)	130 W
Power output per channel (20-20KHz@8 Ohm)	175 W
HDMI in	6
Composite video in	3
Digital audio coaxial in	1
Component video (YPbPr/YCbCr) in	2
Connectivity technology	Wired
Speakers connectivity type	-
Ethernet LAN	Yes
Supported radio bands	FM
Optical drive included	No
Display	LCD
Product color	Silver
Audio decoders	Dolby TrueHD
AC input voltage	220-240 V
AC input frequency	50 - 60 Hz
Power consumption (standby)	0.15 W
Power consumption (typical)	710 W
Package weight	15000 g

Weight and Dimensions

Depth	379 mm
Width	435 mm
Height	175 mm
Weight	11.5 g