JVC BR-HD50 manual Cleaning tape, Condensation, „ Regular maintenance, „ Head cleaning

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Head drum

INTRODUCTION

Regular maintenance

This unit uses consumables or components that will wear off. If a worn-out or deteriorated component continues to be used, it may cause the unit to break down. To prevent this, perform routine mainte- nance using the head-cleaning tape. With the head-cleaning tape alone, however, the entire tape-wind- ing mechanism cannot be completely cleaned.

Perform regular maintenance of the components as shown below.

„Regular maintenance

The tasks of maintenance involved are similar to that of replacing the engine oil or tire of a car. Depending on the number of usage hours, inspect or replace the components as follows:

Number of hours

500H

1000H

1500H

2000H

G: Cleaning, inspection and adjust-

 

 

 

 

 

ment

Drum assembly

 

 

 

 

G

E

E

F

E: Cleaning and inspection; Replace-

(including head)

 

 

 

 

ment if necessary

 

 

 

 

 

Tape guide, roller

 

 

 

 

G

E

E

F

F: Replacement

 

 

 

 

 

Work and frequency of maintenance

 

 

 

 

 

Cleaning tape

Use a JVC cleaning tape.

Follow the instructions below for using the clean- ing tape.

1.Run the tape for 10 seconds in the PLAY mode. (Thereafter, it stops automatically and enters the STOP mode.)

•After loading the cleaning tape, press the PLAY button.

2.For a single cleaning session, it can be repeated up to 4 times.

3.Refer to the following table as a guide for cleaning.

Note

zUnder low humidity conditions, (10% RH to 30% RH), perform head cleaning at intervals of half of the periods stated in the table.

zIf an M-DV80 tape is used immediately after cleaning, the message, “HEAD CLEANING REQUIRED!” may not disappear. It does only after the tape has run for some time.

zUse the cleaning tape at room temperature (10°C to 35°C).

zInstructions for using the cleaning tape stated on a sheet inside its storage case may be dif- ferent in part from those stated here.

Follow the instructions in this manual.

Belt gears

—

E

E

F

depend on the environment and

Drive system parts

—

—

 

 

E

F

usage. The above information serves

 

 

 

 

 

only as a guide.

 

 

 

 

 

Usage Time

: You can check the drum usage time with the hour meter display. For

 

details, refer to page 83, “Checking the hour meter”.

Maintenance consultation

: For details on the maintenance plan and fee, consult with your JVC-

 

authorized service agent.

Operating environ-

Low temperature

Room temperature

High temperature

ment

5°C to 10°C

10°C to 35°C

35°C to 40°C

Frequency of cleaning

1 to 2 times every

5 1 to 2 times every 20 to 1 to 2 times every 5

 

hours

30 hours

hours

Condensation

„Head cleaning

•Recording or playing back with a dirty head will result in block noise or disrupted sound. Perform regular head cleaning to maintain superior image and sound quality.

Block Noise

•For information on how to use the head cleaning tape and the relevant remarks, refer to Xpage 9, “Cleaning tape”.

•If the head is dusty, “HEAD CLEANING REQUIRED!” will be displayed on the moni- tor when this unit plays a tape.

HEAD CLEANING REQUIRED!

•When this unit is moved from a cold to a warm place abruptly, the vapor in the warm air will come into contact with the head drum or the tape guides, which are not warmed enough. When chilled, the vapor turns into droplets of water. This state is known as condensation. When condensation occurs, the videotape adheres to the head drum or the tape guides and will be damaged.

•Condensation occurs on this unit in the fol- lowing circumstances:

* It is moved abruptly from a cold place to a warm place.

* It is

used

in

a place

 

 

 

 

immediately

after

the

 

Videotape

heater has been turned

 

 

on,

or

when

cold

 

 

breeze from an air-con-

 

 

ditioner blows onto it.

 

 

*It is used at a place of high humidity.

When a cassette tape is loaded, do not transport e.g., from a cold outdoor place to a warm room thus subjecting the unit to drastic temperature changes. After moving the unit, do not use it until the inner mechanism stabilizes.

•When condensation occurs, the monitor displays the following warning:

CONDENSATION ON DRUM

Leave the unit with the power ON and wait until the WARNING message disappears.

•Prevention of condensation

When transporting BR-HD50 from a cold to a warmer place abruptly, first remove the cassette tape. Then place BR-HD50 in a plastic bag and seal it before transporting.

Take out BR-HD50 from the sealed plastic bag only after it has the same temperature as the surroundings.

E-8

E-9

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Contents Serial No LLT0088-001A For Customer UseBR-HD50HD Video Cassette Recorder BR-HD50UInformation for Canada Renseignement Pour Canada Important SafeguardsInformation RemarqueFor Continental EUROPE, ETC For U.K. only Power SystemFor Your Safety Please Read the Following Text Carefully Must be EarthedTable of Contents Remarks of usage IntroductionCassette tape HDV and DV format „ Head cleaning Regular maintenanceCleaning tape „ Regular maintenanceNames and Functions of Parts 7COUNTER switch „ Dvcam indicator light„ 60 indicator light „ 50 indicator light„ SEARCH+/S button DHOLD button GCUE UP button EMENU button HSpecial functions/Setting buttonsFRESET button „ BLANK/P button3VIDEO Line OUT terminal BNC 0HDMI OUT Hdmi signal output termi- nal9CH2/4 Audio OUT terminal RCA 2VIDEO Y/C in terminal 4-PINESERIAL Remote terminal mini jack BDC power input terminalCDC power cord clamp DSIGNAL GND terminal„ DV format ON-SCREEN Display„ HDV format Remaining tape VCR operation modeDate/time Counter displayDisplay Description Event/Alarm displayDisplay displayed during operation Description Display displayed for about 3 seconds Description„ Input signal „ Output signalConnection Attaching the supplied ferrite core Connecting audio signalsDigital input IEEE1394 terminal 6P To the DC cord. XPage „ Operate BR-HD50 with the wired remote controllerComponent OUT RECORDING/OUTPUT Signal FormatPreparation Turning on the powerTurning off the power „ Output terminal video/audio signal format during playbackEjecting the cassette tape Selecting the operating method main unit/remote controllerOperation Lock mode Loading the cassette tape„ Display Menu screen Setting date and timeSelecting date/time display On-screen status displayRecording Check settingsSetting the Menu screen Setting Menu screensTting related Menu screen Selecting input signalAdjusting audio recording level SettingsSource unit Recording index signalsPlayback Video settingsSettings regarding playback function Audio settingsFast forward/rewind Frame-advance playback Slow playback and Search mode„ In the Stop mode, press the Blank button „ Repeat Mode in the System 1/2 Menu screenIndex search Blank searchSearching cue-up points Changing cue-up pointsRegistering cue-up points Exiting the Multi Cue-up screen„ NDF/DF 60 U model only Time CodeTCG Select Regen Recording from preset dataTCG Select Preset „ Set the TC/UB/CLOCK 1/2 Menu as follows„ Remote 2/2 Menu screen Control with RS-422A Analog signalsControl with the IEEE1394 ter- minal Digital signals EditMenu screen on counter display „ Set BR-HD50 to the Stop or Still modeSetting the menus Menu ScreensSystem Menu screens TOP Menu screen„ System 1/2 Menu screens „ System 2/2 Menu Remote Menu screens Video Menu Screen Audio Menu ScreenDown Conv Hdmi ModeTest Signal OUT for„ TC/UB/CLOCK 1/2 Menu screen TC/UB/CLOCK Menu screens„ TC/UB/CLOCK 2/2 Menu screen Others „ Alarm display Displayed regardless of the Display modeDisplay Menu screen „ Warning display Displayed regardless of the Display mode „ Set BR-HD50 to the Stop mode „ General „ Connectors„ Accessories „ External dimensions Unit mm„ AC adapter section Important Safety InstructionsSupplement
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