Cannot Establish A Bluetooth Connection; Cannot Recognize The Connected Usb Device - Denon AVR-S730H Service Manual

5.2. Cannot establish a Bluetooth connection

Check the Bluetooth device being used
Is the Bluetooth device compatible with the A2DP
profile?
YES
Is the Bluetooth function enabled on the Blue-
tooth device?
YES
Checking the unit
Is the antenna cable inserted correctly into Net-
work Module?
YES
In the same way as for Network connection troubleshooting, check the Network Module power supply
and HEOSVersion is displayed correctly.
NO
Use a device that is A2DP profile compatible.
NO
Enable the Bluetooth function and try connecting
again.
NO
Connect the antenna cable correctly.

5.3. Cannot recognize the connected USB device

Check the USB device being used
Is a USB hub being used?
NO
Is the USB device supported by this unit?
YES
Are [CN813] of the DIGITAL PCB and [BN104] of
the USB PCB correctly connected?
YES
Can a voltage (5V) be confirmed between [JK101 :
1 - 4pin] (USB Connector) on USB PCB?
YES
The USB signal circuit between Network Module and [JK101] of the USB PCB are faulty.
72
YES
Do not use a USB hub.
NO
This unit supports devices in the FAT16- and
FAT32-formatted mass storage class, MTP-com-
patible devices and iPod devices (except for some
models).
Checking the unit
NO
Connect the connectors correctly.
NO
The circuit around [IC814] of the DIGITAL PCB is
faulty.