Checking the USB device
YES
Is the USB device compatible with the set?
Are you using a USB hub?
Only mass storage devices in FAT16 or
FAT32 formats or MTPcompatible devices
and iPod (Remove some models) are
supported.
You do not use the USB hub.
NO
YES
NO
Checking the set (AVR-3311CI)
YES
YES
Is a voltage (5V) being supplied between pins 1 and 4 of Jack602
on the USB circuit board (USB connector)?
The circuitry from U3990 on the HDMI circuit board to Jack602 on the
USB circuit board is defective.
Is the wire of N4201 properly connected?
The Q4200 and surrounding circuitry on the
HDMI cirucuit board is defective.
Connect the wire properly.
NO
NO
83
5.2. USB device is not recognized
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