Hitachi DZ-MV350A Service Manual page 37

Troubleshooting > Problem Guide
Symptom
"USBNTMAP.SYS not
found" appears while
installing USB driver
No USB HS (high speed)
connection even when
USB2.0 card is used
"DISC ERROR" appears
when releasing write-protect
DZ-MV350A vibrates.
Slight sound is heard from
DZ-MV350A.
Power does not come on, or
no operation occurs by
pressing button.
The date and time are
incorrect.
No scene can be deleted.
Disc cannot be removed.
You have designated a folder which is different from that for Windows when
installing USB driver: Designate the correct folder.
Make sure that you have already installed the driver provided with the USB2.0
card. You will need to install the driver provided by USB2.0 card maker in
order to operate the USB2.0 card at HS (high speed).
A disc that was write-protected using the write-protect setting tool (WPTOOL)
equipped with the UDF driver on the CD-ROM provided with this DVD video
camera/recorder cannot be released on this DVD video camera/recorder as is.
Use the write-protect setting tool on PC to release the write-protect.
This does not indicate a fault.
These vibrations or sound are generated when the disc drive unit is operating.
Miscellaneous
Execute system reset (disconnect the battery or AC adapter/charger, and then
use a fine tipped pen, etc. to hold down the RESET button for several seconds).
Then connect a battery or AC adapter/charger and make sure the DZ-MV350A
accepts operation.
System reset will return the date/time and all items set using menu (except for
LCD settings) to the defaults at the factory. After recovery, reset the date/time
and each setting item as required.
Has DZ-MV350A been subjected to impact?
The DZ-MV350A could be damaged.
Has the DZ-MV350A been left unused for a long period of time?
The internal backup battery may be discharged: Charge it. (Charge procedure:
Connect the AC adapter/charger to the DZ-MV350A and AC outlet, set the
power switch on DZ-MV350A to "POWER OFF", and then leave them for at least
24 hours.)
Is the cursor placed on scene to be deleted?
Even if desired scenes are selected using yellow cursor, if there are the selected
scenes (in red frame), those scenes in red frame will be deleted. Check the color
of cursor and bar graph on the thumbnail display screen.
Is battery or AC adapter/charger (power supply) connected?
With the DZ-MV350A, a disc cannot be removed unless a power supply is
connected.
Has disc rotation stopped?
Making sure the disc stops, and then restart operation. Disc cannot be removed
until rotation has stopped.
Did you disconnect the battery or AC adapter/charger (power supply) while the
disc was being accessed?
Reconnect power supply, set the power switch to "VIDEO", and then remove the
disc after the sound showing the disc lock has been released is heard.
If the disc still cannot be removed, the DZ-MV350A is faulty: Refer to "4-8
Procedure for Removing Disc from Faulty DZ-MV350A".
4 - 8
Cause and Correction