Check the USB device being used
Is the USB device supported by this unit?
Is a USB hub being used?
This unit supports devices in the FAT16- and FAT32-formatted
mass storage class, MTP-compatible devices and iPod devices
(except for some models).
Do not use a USB hub.
Checking the unit
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.
Are CN321 of the DIGITAL PCB and BN321 of the USB PCB cor-
rectly connected?
The circuit around IC503 of the DIGITAL PCB is faulty.
Connect the connectors correctly.
5.3. Cannot recognize the connected USB device
Checking the unit (If no picture is output)
Check the VIDEO circuit.
Are digital video signals(920PCK, 920VD0 - 920VD7) output from
CY920 to IC421 (V.PLD)?
Checking the unit:(If no sound is output)
Check the IC251 (DSP) AUDIO circuit and the circuits thereafter.
Are the I2S signal output to pins 26, 28, 30 and 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.
5.4. No picture or sound is output
The circuit around CY920, IC421 (V.PLD) is faulty.
The circuit around CY920 is faulty.
The circuit around IC221 (A.PLD) is faulty.
YES
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
110
Содержание SR6010
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