Check the USB device being used
YES
Is the USB device supported by this unit?
Is a USB hub being used?
This unit supports devices in the FAT16 and
FAT32-formatted mass storage class, MTP-
compatible devices and iPods (with the
exception of some models).
Do not use a USB hub.
NO
YES
NO
Checking the unit
YES
YES
Can a voltage (5V) be conîšżrmed between pin 1 and pin 4 of JK101
(USB Connector) on USB PCB?
The circuit between IC853 of the DIGITAL PCB and JK101 of the
USB PCB are faulty.
Are N2801 of the ADAPTER PCB and CN914 of the USB PCB
correctly connected?
The circuit around IC854 is faulty.
Connect the connectors correctly.
NO
NO
5.3. A connected USB device is not recognized.
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