Denon AVR-2313, Service Manual

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101
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 format or MTP compatible devices
and iPod (Remove some models) are
supported.
Don't use the USB hub.
NO
YES
NO
Checking the set (AVR-2313)
YES
YES
Is a voltage (5V) supplied between the pins 1 and 4 of CP4406 on the
USB board (USB connector)?
The circuitry from U2602 on the HDMI board to CP4406 on the USB
board is defective.
Is the wire properly connected between N2801 on the HDMI board
and CN4402 on the USB board.
The U2806 and surrounding circuitry on the
HDMI board are defective.
Connect the wire properly.
NO
NO
5.2. USB device is not recognized
The circuit between U2602 and U2803 is
defective.
U2602 and surrounding circuitry is defective.
Checking the set (AVR-2313):(If no picture is output)
Checking the set (AVR-2313):(If no sound is output from MAIN ZONE)
Check the analog video circuit.
Check the Digital audio circuit.
Are video signals output from U2803 pin 27 (Y) and pin 24 (C)?
Are S/PDIF signals output to U2206 pin 21?
NO
NO
YES
YES
5.3. No picture or no sound is output