Denon AVR-X3200W Service Manual page 101

5.3. A connected USB device is not recognized.
Is a USB hub being used?
Is the USB device supported by this unit?
Are CN321 of the DIGITAL PCB and BN321 of the USB PCB correctly connected?
Can a voltage (5V) be confirmed between pin 1 and pin 4 of JK608 (USB
Connector) on USB PCB?
The USB signal circuit between CY920 and JK608 of the USB PCB
are faulty.
5.4. No picture or sound is output
Are digital video signals((920PCK, 920VD0 - 920VD7)) output from
CY920 to IC421(V.PLD)?
Check the VIDEO circuit.
Are I2S signal output to pin 26, 28, 30, 34 of the CN501 DIGITAL PCB
?
(The 30, 32, 34pin in the case of DSD)
Are audio signal output to pin 85 of IC221(A.PLD) on DIGITAL PCB.
Check the AUDIO circuit of IC251(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 FAT32-
NO
formatted mass storage class, MTP-compatible devices
and iPods (with the exception of some models).
NO
Connect the connectors correctly.
NO
The circuit around IC503 of the DIGITAL
PCB is faulty.
NO
The circuit around CY920, IC421(V.PLD) is
faulty.
NO
The circuit around CY920 is faulty.
NO
The circuit around IC221(A.PLD) is faulty.
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