Condensation, Videocassette to be Used | JVC GY-DV5000 instruction

1. INTRODUCTION 1-3 Precautions for Use of Head Cleaning Tape

For servicing		←
Refer to the service manual page. 1-9	“White blemish derection”

	1. INTRODUCTION

1-6 Condensation

Please use cleaning tape produced by JVC. Adhere to the following precautions when using the head cleaning tape.

1. Place the unit in the STOP mode.

2. The tape runs for 10 seconds at a time in the PLAY mode. (The tape stops automatically and then the unit enters the SAVE MODE.) Press the PLAY button after the cleaning tape is fully loaded.

3. Do not use the tape more than four times at the most for each cleaning.

4. The cleaning tape can be used approximately 100 times.

■Use the following chart as a guide for periodical head

cleaning.

Note 1) When used in a low humidity environment, head cleaning
	should be conducted at intervals half of those given in
	the below chart.
Note 2)	If an ME80 tape is used immediately after head cleaning,
	the “HEAD CLEANING REQUIRED!” indicator may
	remain on. In this case, let the tape run as the indicator
	will turn off after the tape has run for a while.
Note 3)	Use the cleaning tape in the room temperature (10˚C to
	35˚C).
Note 4)	The cleaning tape case contains instructions for use of
	the cleaning tape. However, some of these instructions
	differ from the contents of this sheet. When using the
	cleaning tape, please follow the instructions of this sheet.
Note 5)	If the “HEAD CLEANING REQUIRED!” does not
	disappear after repeated head cleanings, the recording
	tape may be abnormal. Avoid excessive repeated use of
	the head cleaning tape.

● 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.
	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.
	humid place.
Do not leave the videocassette inserted when moving the
camera under conditions where the temperature
environment changes.

● “CONDENSATION ON DRUM” is displayed on the LCD monitor and in the viewfinder when condensation occurs in this unit.

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

Operating	Low temperature	Room temperature	High temperature
environment	0˚C to 10˚C	10˚C to 35˚C	35˚C to 40˚C
Yardstick for use	1 to 2 times	1 to 2 times	1 to 2 times
of cleaning tape	every 5 hours	every 20 to 30 hours	every 5 hours

After moving the unit, do not use until the internal parts

have stabilized.

	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.

1-4 Videocassette to be Used

●Use JVC’s videocassette tapes marked with the “ ” or

“ ” symbol.

Standard DV videocassette: LA-DV276, LA-DV186, LA- DV124 Mini DV videocassette: M-DV63PRO, M-DV60, M-DV30

* Do not use M-DV80.

● Videocassettes cannot be used upside down.

● Avoid storing a videocassette with its tape not being

completely wound, as this may damage the tape. Rewind

it to the beginning before placing a cassette into storage.

reduce the rotary head life.

●Videocassette tapes with the “ ” or “ ” symbol are provided with a switch on the back to prevent accidental erasure.

●Slide the switch to SAVE to protect the required recording in the tape from being overwritten.

●To record on the tape, slide the switch to REC.

Switch

● 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.

1-7 Characteristic CCD Phenomena

● Store videocassettes in a place with little humidity and good

ventilation where mould does not form.

● After a videocassette tape has been used repeatedly,

it becomes unable to maintain full performance due to

an increase in noise caused by dropouts, etc. Do not

continue to use a dirty or damaged tape, as this will

1-5 Battery Pack to be Used

The GY-DV5000 can use any of the following battery packs. ● Flat shape type

● Anton-Bauer battery pack: Trimpack 13.14 Series Magnum 13.14 Series Compack 13.14 Series Propack 13.14 Series

To display the remaining battery power accurately, set the BATTERY TYPE item on the OTHERS (2/2) menu screen according to the type of the battery pack in use. (☞See page 78)

REC

SAVE

*	An Anton-Bauer battery pack cannot be connected directly
	to the camera. It is necessary to mount the optional battery
	holder.
● Battery holder: Anton-Bauer QRQ27
	For details on how to mount the battery holder, see page
	35.

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
Monitor screen	(Blurring in highlight)
Monitor screen

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.