Denon AVR-E400 Service Manual

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 MTPcompatible devices
and iPod (Remove some models) are
supported.
Don't use the USB hub.
NO
YES
NO
Checking the set (AVR-E400/X2000)
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
U2602 and surrounding circuitry are
defective.
Checking the set (AVR-E400/X2000):(If no picture is output)
Check the HDMI/DVI circuit.
Are digital video signals(BCLK, VD0 - VD7) output from U2602 to
U1601?
NO
Checking the set (AVR-E400/X2000):(If no sound is output)
YES
YES
YES
Are audio signals output to IC4200 pin 62 and 63?
Check the Analog audio circuit.
Are I2S signals output to U2401 pin 12, 13, 14, 15?
U2602 and surrounding circuitry are
defective.
U2401 and surrounding circuitry are
defective.
NO
NO
5.3. No picture or no sound is output
93

Denon AVR-E400 Specifications

General

HDMI Inputs	6
HDMI Outputs	1
3D Pass-through	Yes
4K Pass-through	Yes
Dolby TrueHD	Yes
DTS-HD Master Audio	Yes
Audyssey MultEQ	Yes
Network Connectivity	Yes
AirPlay	Yes
DLNA	Yes
Input Impedance	47 kOhms
Input Sensitivity	200 mV
Signal-To-Noise Ratio	100 dB
Response Bandwidth	10 Hz - 100 kHz
THD	0.08%
Tuner Presets	56
Tuner Bands	AM/FM
Frequency Response	10 Hz - 100 kHz
Video Upscaling	Yes
Bluetooth	No
Wi-Fi	No
Surround Sound Effects	DTS Neo:6
Audio D/A Converter	192kHz/24-bit
Inputs	HDMI, Digital Optical, Digital Coaxial, Analog
Outputs	HDMI, Headphones