Denon AVR-X5200W Service Manual page 110

5.3. A connected USB device is not recognized.
Is a USB hub being used?
Is the USB device supported by this unit?
Are N904 of the CX870 CONNECT PCB and N5560 of the HDMI USB
FRONT PCB correctly connected?
Can a voltage (5V) be confirmed between pin 1 and pin 4 of N5559
(USB Connector) on HDMI USB FRONT PCB?
The USB signal circuit between CX870 and N5559 of the HDMI USB
FRONT PCB are faulty.
5.4. No picture or sound is output
Are digital video signals((920PCK, 920VD0 - 920VD7)) output from
CX870 to U3200(V.PLD)?
•Check the VIDEO circuit.
Are I2S signal output to pin 26, 28, 30, 34 of the N906 DIGITAL PCB
?
(The 30, 32, 34pin in the case of DSD)
Are audio signal output to R1263 on DIGITAL PCB.
Check the AUDIO circuit of U101(DSP) or later.
Check the USB device being used
NO
YES
Checking the unit
YES
YES
Checking the unit (If no picture is output)
YES
Checking the unit:(If no sound is output)
YES
YES
YES
Do not use a USB hub.
This unit supports devices in the FAT16 and
NO
FAT32-formatted mass storage class, MTP-
compatible devices and iPods (with the
exception of some models).
NO
Connect the connectors correctly.
NO
The circuit around U902 of the CX870
CONNECT PCB is faulty.
NO
The circuit around CX870, U3200(V.PLD) is
faulty.
NO
The circuit around CX870 or CX870 CONNECT PCB
is faulty.
NO
The circuit around U1201(A.PLD) is faulty.
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