Denon AVR-X250BT - Page 65

5. Bluetooth
The circuit around [BT PCB : BN912 and BT module : MB1520BD] is faulty.
Are [BT PCB: BN911, BN912] and [Digital PCB]
connected correctly?
Can you conrm the voltage (3.3V) between pin 3
and pin 5 of BT PCB [BN912]?
Is the Bluetooth device compatible with the A2DP
prole?
Is the Bluetooth function enabled on the
Bluetooth device?
Connect the connectors correctly.
The circuit around [Q7510] of the DIGITAL PCB is
faulty.
Use a device that is A2DP prole compatible.
Enable the Bluetooth function and try connecting
again.
Checking the unit
Check the Bluetooth device being used
NO
NO
NO
NO
YES
YES
YES
YES
5.1. Cannot establish a Bluetooth connection
Before Servicing
This Unit
Electrical Mechanical Repair Information Updating
65