Front Section; Characteristic Ccd Phenomena - JVC GY-DV5100 Instructions Manual

1-6 Condensation
● If the unit has been cooled down in a cold place and is then
carried to a warm place, the moisture contained in the warm
air may adhere to the head drum or tape guides and be cooled
into water droplets. This phenomenon is referred to as
condensation (dewing). When this occurs, the head drum and
tape guides are covered with droplets allowing the tape to be
stuck to them, leading to tape damage.
● Condensation occurs in the following cases:
• When the unit is suddenly moved
Head drum
from a cold place to a warm place.
• When a room heater has just started
or when the unit is exposed directly
to cold air from an air conditioner.
• When the unit is placed in a very
Video tape
humid place.
Do not leave the videocassette inserted when moving the
camera under conditions where the temperature
environment changes.
After moving the unit, do not use until the internal parts
have stabilized.

1-7 Characteristic CCD Phenomena

Smear and Blooming
Due to the physical structure of a CCD it is possible to induce
vertical streaking (called "smear") when shooting an extremely
bright light source. Another effect is the expansion of light around
a bright light or object (called "blooming").
The CCD employed in this unit is characterized by inducing
very little smear or blooming. Nevertheless, please take note
that smear or blooming may be indured when shooting a bright
light source.
Smear
(Vertical pale streaking
appearing at high
luminous object)
High luminous object
(Electric light, sunlight, etc.)
Blooming
(Blurring in highlight)
Monitor screen
1. INTRODUCTION
● "CONDENSATION ON DRUM" is displayed on the LCD
monitor and in the viewfinder when condensation occurs in
this unit.
WARNING 0201
CONDENSATION ON DRUM
Keep the power on until the warning message disappears.
● Pay attention to condensation even before the condensation
indication appears.
• As condensation forms gradually, the condensation
indication may not appear for the first 10-15 minutes after
condensation has formed inside.
• In an extremely cold place, the condensation could freeze
and turn into frost. In such a case, it takes an additional 2-
3 hours for the frost to first melt into condensation and
then to be dissolved.
● To prevent condensation when moving the unit from one place
to another where the temperatures are greatly defferent, first
remove the videocassette, place the unit in a tightly sealed
vinyl bag, and then move it to a new environment.
To ensure no condensation occurs, allow the temperature of
the unit in the bag to reach that of the new environment before
using it.
Moire or Aliasing
Shooting stripes or fine patterns may cause a jagged effect or
a banding in fine mesh patterns.
White dots
High temperatures can cause CCD sensor pixels to produce
the effect of white dots in the image. This condition is
conspicuous especially when gain is applied.
This is a characteristic of the charged-coupled device (CCD).
As far as possible, use the unit under conditions where the
temperature of the unit does not increase.
2. CONTROLS, INDICATORS AND CONNECTORS

2-1 Front Section

VF
OFF ZEBRA
SKIN
ON
AREA
VTR
AUDIO
LEVELE CH-1
5
Viewfinder mount base, sliding securing ring
Mount the viewfinder on the base and secure it using the
sliding securing ring.
☞ See "Attaching the Viewfinder" on page 32.
[VF] Viewfinder connector (6-pin)
Connect the cable from the viewfinder here.
[FRONT MIC IN] Front microphone input
connector (XLR 3-pin)
Balanced 3-pin connector for camera microphone.
● Set the FRONT MIC +48V switch
accordance with the connected device.
● To record the audio from this connector, set the CH-1/
CH-2 AUDIO IN switch on page 16 to "FRONT".
☞ See page 16.
1
3
2
CAUTION:
The provided microphone is a phantom microphone. Please
confirm that the FRONT MIC +48V switch is set to the "ON"
side when the provided microphone should be used.
When using a microphone other than a phantom
microphone, first set the FRONT MIC +48V switch to "OFF"
before connecting the microphone.
9 10
[LENS] Lens control connector
Connect 12-pin lens control cable from lens here.
Pin No. Function
1 Return switch
2 VTR trigger
3 GND
4 Lens AUTO/MANU control
5 IRIS control
6 +12V DC
[ZEBRA] Switch
When this switch is ON, a zebra pattern is imposed on the
viewfinder or LCD areas having luminance levels in
accordance with the menu settings made for the video
signal. This pattern can be used as a reference for manual
adjustment of the lens iris. Zebra patterns are also displayed
during color bar display when this switch is set to ON.
☞ See "Zebra Pattern Display during Manual Adjustment"
AUTO
on page 89.
WHITE
ACCU
● The default value is 70% - 80%. The luminance level can
FOCUS
be changed with the ZEBRA setting in the LCD/VF menu
screen.
☞ See "ZEBRA" item on page 81.
While this switch is pressed to the SKIN AREA side, the
color tone areas specified with the SKIN COLOR ADJUST
item on the ADVANCED PROCESS menu are indicated in
the viewfinder. The switch returns to the OFF position when
released.
☞ See "How to Use Skin Detail" on page 94.
● The Skin Detail color tone areas are not indicated while
the color bar or VTR playback picture is shown in the
viewfinder or on the LCD monitor.
[VTR] VTR trigger button (record start/stop button)
Recording start/stop can be done with this button.
(It is interlocked with the VTR trigger button on the side
on page 16 in
section and the VTR trigger button on the lens section.)
[AUDIO LEVEL CH-1] CH-1 audio level control
Adjusts the audio level of the CH-1 audio signal input.
Normally, the camera is used with the control set to the
maximum (10) position.
● To use this control, set the CH1 FRONT VR item on the
AUDIO/VIDEO menu screen to "ENABLE".
Pin No. Function
☞ See "AUDIO/VIDEO menu screen" on page 79 .
1 GND
2 HOT
3 COLD
Pin No. Function
7 Iris position
8 IRIS A/R INPUT
9 EXTENDER position
10 ZOOM position
11 —
12 —