JVC GZMC500US - Everio Camcorder - 1.33 MP, Service Manual

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(No.YF100)1-11
The above data shows: the elapsed time of copying the recorded
information on a Microdrive to a PC and the elapsed time of for-
matting the Microdrive with the PC.
From the results of the measurement, it is clear that the data
transfer with a commercial USB2.0 Reader/ Writer is about twice
as quick as transfer with a PCMCIA card.
Using USB2.0 Reader/ Writer is recommended when frequent
data backup or data re-writing on the Microdrive is required.
Backup should be performed all the recorded files on the Micro-
drive.Formatting must be done with the main unit that operates
normally.If a Microdrive that is more than 2 GB is formatted with
the main unit, it is formatted as FAT (FAT16), and a drive that is
more than 2GB is formatted FAT32.
Please refer to 2.4 Format for formatting.
2.4.5 Checking the main unit/ Microdrive good or bad
In order to repair or check MC100, 200, 500, judging the cause of
the failures, whether it is the main unit or the Microdrive, is essential.
The product failures that are brought into repair/ check fall into
the following categories.
(1) Microdrive failures caused by the users handling such as
fall, shocks, and submergence.
(2) Main unit operation failures caused by the Microdrive failures.
(3) Microdrive operation failures caused by the main unit failures.
NOTE:
Unlike DVC tapes, the Microdrives of MC100, 200, 500 are
recognized as parts of the main unit. It is essential that the
main unit and the Microdrive are brought in as a pair for service.
Basically, do not accept the main unit alone for repair or check.
2.4.5.1 Separations of the parts failures
The procedure to identify the causes of the failures whether it is
in the main unit or in the Microdrive is explained in this section.
2.4.5.2 Microdrive failures caused by user handling
As previously explained, Microdrive failures may possibly be
caused by falls or shocks. Further more, dropping Microdrives in
the water causes crucial failures to Microdrives.
Supplied Microdrives (not all the commercial Microdrives) have
the same type of Water Exposure Seal that are used in cellular
phones. Before checking the failures, check whether there is a
Water Exposure Seal display appeared.
In addition, check whether there are any significant scratches,
bends, or dents that shows the sign of falls or shocks.
Other check items are as follows.
(1) Check whether there are any letters written with a pencil or
a pen on the label of the Microdrive. The pen pressure
gives distortion on the Microdrive, resulting in an operation
failure. It is noted in the Instruction Book.
(2) Check whether there are any stickers affixed on the Micro-
drive. The space between the Microdrive and the housing
is very little. Affixing unnecessary stickers may lead load-
ing the Microdrive in a wrong position, resulting in contact
failure or remove disk failure. There is a hole on the reverse
side of the Microdrive for ventilation through special filter.
Sealing the holes gives effect on the operation.
(3) Check whether the Microdrive label is peeled or turned. If
there are peel or turn in the label, the loading failure may
occur. Peels or turns will not occur under normal condi-
tions, thus storage or usage under hot and humid condi-
tion, near organic solvent, or exposure to the direct sunlight
are considered.
2.4.5.3 Main unit operation failures caused by the main unit/
Microdrive failures.
2.4.5.2 There is a possibility of a Microdrive being damaged even
though there is no notable failure in appearance.
Main unit failures also result in abnormal operation in a Micro-
drive.
Identifying the causes of the failures in the main unit is explained
in this section.
In the diagram, MD stands for a Microdrive, CG for a compact
flash card, and SD for a SD card.
Recording detail
Microdrive 1 Microdrive 㧞
(Recording Capacity)
N2B12JRA N2HNY1VA
FAT32
12m31s 12m36s
Normal format
00m37s 00m40s
FAT32
00m18s 00m19s
Quick format
00m10s 00m09s
16m16s 15m46s
07m25s 07m57s
29m30s 29m47s
14m08s 14m49s
41m23s 42m48s
22m47s 23m23s
56m15s 56m34s
30m02s 29m53s
via PCMCIA card
via USB2.0 reade
transmitted by PCMCIA card
transmitted by USB2.0 reader
transmitted by USB2.0 reader
transmitted by PCMCIA card
transmitted by USB2.0 reader
transmitted by PCMCIA card
transmitted by USB2.0 reader
transmitted by PCMCIA card
via PCMCIA card
via USB2.0 reade
Detection detail
15m(1GB)
30m(2GB)
45m(3GB)
60m(4GB)
File Transfer Time Measurement
Troubles?
Start
Troubles?
YES
Go to
2.4.5.2
Go to
2.4.5.3
Go to
2.4.5.3
With an emergency record?
NO
YES
NO
Troubles?
YES
Go to
2.4.5.4
NO
NO
YES
Check the Water Exposure Seal
Check the appearance
Perform a general operation check
using a MD other than the user drive.
Perform a general operation check
such as record/ replay.
Check the Water Exposure Seal,
significant scratches on the
exterior, bends, and dents.
Check whether it is a Microdrive failure
or a main unit failure by using the user's
Microdrive. Be careful to avoid
unexpected accidents.
Operate a general operation check
using the user Microdrive.
Check whether there is an emergency
record in the main unit, and check the
details of the record.
Check whether there is an emergency
record in the main unit, and check the
details of the record.
Normal condition
Water Exposure Seal
display is appeared
(changes from white to red)
Displays of Water Exposure Seal
1mm
4mm
6mm
1.5mm 1.5mm
2mm
Location of a Water
Exposure Seal (inside)
Reverse side of the Microdrive
When it is submerged, the white
Water Exposure Seal turns to red.
As the center part of the seal turns
to pink, the color seen from the
hole is pink. The 1mm hole
diameter prevents the seal from
getting affected by wet hands
under normal conditions. It is not
affected by the humidity of normal
storage or operational conditions.
Air is taken into inside
the Microdrive from this
hole through special
filter for ventilation. DO
NOT SEAL THIS HOLE
is displayed.