Denon AVR-X520BT Service Manual

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Check the Bluetooth device being used
YES
Is the Bluetooth device supported by this unit?
Are there other Bluetooth devices on close by?
This unit supports devices with A2DP
support.
Turn off other Bluetooth devices.
NO
YES
NO
Checking the unit
YES
YES
Can a voltage (3.3V) be conrmed between pin 1 and pin 1 of CN911
on USB PCB?
The circuit around IC901 of the USB PCB and BT module (BX8811) are
faulty.
Are CN911 of the USB PCB and BT module (BX8811) correctly
connected?
The circuit around Q7510 of the DIGITAL
PCB.
Connect the connectors correctly.
NO
NO
5. Bluetooth
5.1. A connected Bluetooth device is not recognized.

Denon AVR-X520BT Specifications

General

Receiver type	Surround
Frequency range	10 - 100000 Hz
Input sensitivity	200 mV
Pre-out connectivity	Yes
Audio output channels	5.1 channels
Signal-to-Noise Ratio (SNR)	98 dB
Power output per channel (1KHz@6 Ohm)	90 W
Power output per channel (20-20KHz@8 Ohm)	70 W
HDMI in	5
Composite video in	2
USB ports quantity	1
Digital audio coaxial in	-
Connectivity technology	Wired
Speakers connectivity type	Clamp terminals
Ethernet LAN	No
AM band range	552 - 1611 kHz
FM band range	87.5 - 107.9 MHz
Supported radio bands	AM, FM
Product color	Black
Audio decoders	Dolby TrueHD, DTS 96/24, DTS-HD, DTS-HD Master Audio
AC input voltage	230 V
AC input frequency	50 Hz
Power consumption (standby)	0.3 W
Power consumption (typical)	330 W

Weight and Dimensions

Depth	319 mm
Width	434 mm
Height	151 mm
Weight	7500 g