Sony PDW-U4, Service Manual

Page: 46 / 156

43
Main
Code
Sub
Code
ERROR/ALARM indicator Description Error remedy method Refer to section
Lighting
interval
Switching off
condition
3D 901 0.25 seconds Power The Disc Drive LSI other
than Disc Drive LSI 0a
(Base Drive) has not been
executed. Or 5V power
supply voltage drop is
detected.
1. Check the followings with each supplying power source.
<In the case of AC adaptor>
• Check whether the power cable has not been damaged.
• Check the power cable connection. When the power cable is properly
connected, unplug and plug it again and then check whether the situation
is improved.
• Check the power supply to the unit for fluctuation.
Note
If a high-power device is connected to the same power channel as this
unit, power supply voltage may be unstable depending on the startup or
operation of the device. In this case, connect the power of this unit
independently and then check whether this situation is improved.
<In the case of USB connection>
• Check whether the USB cable has not been damaged.
• Check the USB cable connection. When the USB cable is properly
connected, unplug and plug it again and then check whether the situation
is improved.
2. Check the harness cables that are used between the JK-109 board and the
UI-32 board, then between the UI-32 board and the BD-48 board.
• Improper connection (half insertion or oblique insertion)
• Damage to connectors
• Significant scratches or disconnection of harness cables
• Damage or dust/dirt at connecting parts (Unplug harness cables.)
－
A01 0.25 seconds Power The Disc Drive LSI other
than Disc Drive LSI 0b
(Base Drive) has not been
executed. Or 5V power
supply voltage drop is
detected.
B01 0.25 seconds Power The Disc Drive LSI other
than Disc Drive LSI 1a
(Base Drive) has not been
executed. Or 5V power
supply voltage drop is
detected.
C01 0.25 seconds Power The Disc Drive LSI other
than Disc Drive LSI 1b
(Base Drive) has not been
executed. Or 5V power
supply voltage drop is
detected.