Cannot Establish A Bluetooth Connection; Cannot Recognize The Connected Usb Device; Check The Bluetooth Device Being Used; Checking The Unit - Denon AVR-S530BT Service Manual

5. Bluetooth / USB

5.1. Cannot establish a Bluetooth connection

Check the Bluetooth device being used

Are there other Bluetooth devices on close by?
YES
Is the Bluetooth device supported by this unit?
YES

Checking the unit

Are [USB PCB : CN911 and BT module : BX8811]
correctly connected?
YES
Can a voltage (3.3V) be confirmed between pin 1
and pin 1 of [CN911] on USB PCB?
YES
[USB PCB : CN911 and BT module : BX8811] peripheral circuits are faulty.
NO
Turn off other Bluetooth devices.
NO
This unit supports devices with A2DP support.
NO
Connect the connectors correctly.
NO
The circuit around [Q7510] of the DIGITAL PCB is
faulty.

5.2. 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 [BN912 and BN914] correctly connected?
YES
Can a voltage (5V) be confirmed between [JK91 :
1-4pin] (USB Connector) on USB PCB?
YES
The USB signal circuit from [IC901] to [JK91] on the USB PCB are faulty.
62
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 [IC905] of the DIGITAL PCB is
faulty.