Denon AVR-X7200W Service Manual page 113

5.3. A connected USB device is not recognized.
Is a USB hub being used?
Is the USB device supported by this unit?
d
Case of AVR-X7200W model
Are N5560 of the CX870MIDDLE PCB and N904 of the USB PCB correctly con-
nected?
Case of AVR-X7200WA model
Are N603 of the DIGITAL PCB and N904 of the USB PCB correctly connected?
Can a voltage (5V) be confirmed between pin 1 and pin 4 of N5559 (USB Connec-
tor) on USB PCB?
d
The USB signal circuit between CX870 or CY920 and N5559 of the
USB PCB are faulty.
5.4. No picture or sound is output
d
Are digital video signals (920PCK, 920VD0 - 920VD7) output from
CX870 or CY920 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 pin 85 of U1201 (A.PLD) 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 FAT32-
NO
formatted mass storage class, MTP-compatible devices
and iPods (with the exception of some models).
NO
Connect the connectors correctly.
d
NO
Case of AVR-X7200W model
The circuit around U902 of the CX870MID-
DLE PCB is faulty.
Case of AVR-X7200WA model
The circuit around U603 of the DIGITAL
PCB is faulty.
d
NO
The circuit around CX870 or CY920, U3200
(V.PLD) is faulty.
d
NO
The circuit around CY920 or CX870 or CX870MID-
DLE PCB is faulty.
NO
The circuit around U1201 (A.PLD) is faulty.
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