JVC GY-HM790CHU User manual

HD MEMORY CARD CAMERA RECORDER
GY-HM790U
GY-HM790CHU
GY-HM790E
GY-HM790CHE
INSTRUCTIONS
* The illustration shows the GY-HM790E with the supplied viewfinder, microphone and lens attached.
* GY-HM790CHU/GY-HM790CHE does not come with a lens.
For Customer Use:
Enter below the Serial No. which is located on the body.
Retain this information for future reference.
Model No. GY-HM790U/GY-HM790CHU
Serial No.
Please read the following before getting started:
Thank you for purchasing this JVC product.
Before operating this unit, please read the instructions
carefully to ensure the best possible performance.
In this manual, each model number is described without the last letter
(U/E) which means the shipping destination. (U: for USA and Canada,
E: for Europe)
Only “U”models (GY-HM790CHU/GY-HM790U) have been evaluated by
UL.
LST1108-001A
Downloaded From VideoCamera-Manual.com Manuals

II
Introduction
1.
Readall of these instructions.
2.
Save these instructionsfor later use.
PORTABLE CART WARNING
(symbol provided by RETAC)
S3125A
IMPORTANT SAFEGUARDS
4.
Unplug thisappliance system from the wall outlet before cleaning. Do not use liquid cleanersor aerosol
cleaners.Useadamp cloth for cleaning.
5.
Do not useattachmentsnot recommended by the appliance manufacturer as they maycausehazards.
6.
Do not use thisappliance nearwater - for example, nearabathtub,washbowl, kitchen sink, or laundry tub,inawet
basement, or nearaswimming pool, etc.
7.
Do not place thisappliance on anunstable cart, stand, or table. The appliance mayfall,
causing serious injury to achild or adult, and serious damage to the appliance.
Use only with acart or stand recommended by the manufacturer, or sold with the appliance.
Wall or shelf mounting should follow the manufacturer'sinstructions,and should usea
mounting kit approved by the manufacturer. An appliance and cart combination should be
moved with care.
Quick stops, excessive force, and uneven surfacesmaycause the appliance and cart
combination to overturn.
8.
Slotsand openingsin the cabinet and the back or bottom are provided for ventilation, and to insure reliable operation of
the appliance and to protect it from overheating, these openingsmust not beblocked or covered. The openingsshould
never beblocked byplacing the appliance on abed, sofa,rug, or other similarsurface.
Thisappliance should never beplaced near or over aradiator or heat register.
Thisappliance should not beplaced in abuilt-in installation such asabookcaseunless proper ventilation isprovided.
9.
Thisappliance should be operated only from the type of power source indicated on the marking label. If youare not sure
of the type of power supplied to your home, consult yourdealer or local power company. For appliance designed to
operate from battery power, refer to the operating instructions.
10.
For added protection for thisproduct during alightning storm, or when it isleft unattended and unused for long periods
of time, unplug it form the wall outlet and disconnect the antennaor cable system. Thiswill prevent damage to the
product due to lightning and power-line surges.
These are general IMPORTANT SAFEGUARDSand certain itemsmay not apply to all appliances.
3.
All warningson the product and in the operating instructionsshould beadhered to.
FOR USA
14.
Never pushobjectsof any kind into thisappliance through cabinet slotsasthey maytouch dangerous voltage pointsor
short outpartsthatcould result in afire or electric shock. Never spill liquid of any kind on the appliance.
15.
Do not attempt to service thisappliance yourself as opening or removing coversmay exposeyouto dangerous voltage
or other hazards. Refer all servicing to qualified service personnel.
16.
Unplug thisappliance from the wall outlet and refer servicing to qualified service personnel under the following conditions:
a. When the power cord or plugisdamaged or frayed.
b. If liquid has been spilled into the appliance.
c. If the appliance has been exposed to rain or water.
d.
e. If the appliance has been dropped or the cabinet has been damaged.
f.
If the appliance doesnot operate normally by following the operating instructions. Adjust only those controlsthat
are covered by the operating instructionsasimproper adjustment of other controlsmayresult in damage and will
often require extensive work byaqualified techniciantorestore the appliance to normal operation.
When the appliance exhibitsadistinct change in performance - thisindicatesaneed for service.
17.
When replacement partsare required, besure the service technicianhas used replacement partsspecified by the
manufacturer thathave the same characteristicsasthe originalpart. Unauthorized substitutionsmayresult in fire,
electric shock, or other hazards.
18.
Upon completion of any service or repairsto thisappliance, ask the service technician to perform routine safety checks
to determine that the appliance isin safe operating condition.
13.
Do not overloadwall outletsand extension cordsasthiscanresult in fire or electric shock.
12.
Follow all warningsand instructionsmarked on the appliance.
11.
Do not allow anything to rest on the power cord. Do not locate thisappliance where the cord will beabused by persons
walking on it.
Downloaded From VideoCamera-Manual.com Manuals

III
Safety Precautions
CAUTION:
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
FOR USA AND CANADA
The exclamation point within an equilateral
triangle is intended to alert the user to the
presence of important operating and
maintenance (servicing) instructions in the
literature accompanying the appliance.
INFORMATION:
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a
commercial environment.
This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio
communications.
Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to correct
the interference at his own expense.
CAUTION:
CHANGES OR MODIFICATIONS NOT APPROVED BY JVC
COULD VOID USER’S AUTHORITY TO OPERATE THE
EQUIPMENT.
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC
RULES.
OPERAT ION IS SUBJECT TO THE FOLLOWING TWO
CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE
HARMFUL INTERFERENCE, AND (2) THIS DEVICE MUST
ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING
INTERFERENCE THAT MAY CAUSE UNDESIRED
OPERAT ION.
The lightning flash with arrowhead symbol,
within an equilateral triangle is intended to
alert the user to the presence of uninsulated
“dangerous voltage” within the product’s
enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to
persons.
TO REDUCE THE RISK OF ELECTRIC
SHOCK. DO NOT REMOVE COVER
(OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
POUR CANADA
ATTENTION
RISQUE D’ELECTROCUTION NE
PAS OUVRIR
ATTENTION:
POUR EVITER TOUT RISQUE D’ELECTROCUTION
NE PAS OUVRIR LE BOITER.
AUCUNE PIECE INTERIEURE N’EST A REGLER
PAR L’UTILISATEUR.
SE REFERER A UN AGENT QUALIFIE EN CAS DE
PROBLEME.
Le symbole de l’éclair àl’intérieur d’un triangle
équilatéral est destiné à alerter l’utilisateur sur la
présence d’une “tension dangereuse” non isolée
dans le boîtier du produit. Cette tension est
suffisante pour provoquer l’électrocution de
personnes.
Le point d’exclamation àl’intérieur d’un triangle
équilatéral est destiné à alerter l’utilisateur sur la
présence d’opérations d’entretien importantes au
sujet desquelles des renseignements se trouvent
dans le manuel d’instructions.
Ces symboles ne sont utilisésqu’aux Etats-Unis.
INFORMATION (FOR CANADA)
RENSEIGNEMENT (POUR CANADA)
This Class A digital apparatus complies with Canadian
ICES-003.
Cet appareil numérique de la Class A est conforme à la
norme NMB-003du Canada.
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN
OR MOISTURE.
CAUTION:
This unit should be used with 12V DC only.
To prevent electric shocks and fire hazards, do NOT use any
other power source.
AVERTISSEMENT:
POUR EVITER LES RISQUES
D’INCENDIE OU D’ELECTROCUTION, NE PAS
EXPOSER L’APPAREIL A L’HUMIDITE OU A LA
PLUIE.
ATTENTION:
Ce magnétoscope ne doit être utilisé que sur du courant
direct en 12V.
Afin d’eviter tout resque d’incendie ou d’electrocution, ne
pas utillser d’autres sources d’alimentation électrique.
NOTE:
The rating plate (serial number plate) is on the unit.
REMARQUE:
La plaque signalétique (plaque du numéro desérie) est située sur
le cadre inférieur de l’unité.
CAUTION:
To prevent electric shock, do not open the cabinet. No user
serviceable parts inside. Refer servicing to qualified service
personnel.
Due to design modifications, data given in this instruction book
are subject to possible change without prior notice.
The apparatus shall not be exposed to dripping or splashing and
that no objects filled with liquids, such as vases, shall be placed
close to the apparatus.
Downloaded From VideoCamera-Manual.com Manuals

IV
Introduction
FOR EUROPE
This equipment is in conformity with the provisions and
protection requirements of the corresponding European
Directives. This equipment is designed for professional video
appliances and can be used in the following environments:
●
Controlled EMC environment (for example, purpose-built
broad-casting or recording studio), and rural outdoors
environments.
In order to keep the best performance and furthermore for
electromagnetic compatibility we recommend to use cables
not exceeding the following lengths:
Safety Precautions
(continued)
Port Cable Length
[DC INPUT] Exclusive Cable 5 m
[Y/VIDEO], [PB], [PR] Coaxial Cable 10 m
[AUDIO INPUT 1/2] Shielded Cable 3m
[AUDIO OUTPUT] Shielded Cable 10 m
[PHONES] Exclusive Cable 3m
[IEEE1394] Exclusive Cable 3m
[HD/SD-SDI] Coaxial Cable 10 m
[REMOTE] Exclusive Cable 5 m
[LENS] Unshielded Cable 0.1 m
[VF] Special Cable 0.3m
[USB] Shielded Cable 2 m
[GENLOCK INPUT] Shielded Cable 10 m
[TC IN] Shielded Cable 10 m
[TC OUT] Shielded Cable 10 m
[STUDIO] Exclusive Cable 0.3m
Caution:
Where there are strong electromagnetic wavesor magnetism, for
example neararadio or TV transmitter, transformer, motor, etc.,
the picture and the sound maybedisturbed. In such case, please
keep the apparatus away from the sourcesof the disturbance.
Dear Customer,
This apparatus is in conformance with the valid European directives and
standards regarding electromagnetic compatibility and electrical safety.
European representative of Victor Company of Japan, Limited is:
JVC Technical Services Europe GmbH
Postfach 10 05 04
61145 Friedberg
Germany
Sehr geehrter Kunde, sehr geehrte Kundin,
dieses Gerät stimmt mit den gültigen europäischen Richtlinien und
Normen bezüglich elektromagnetischer Verträglichkeit und
elektrischer Sicherheit überein.
Die europäische Vertretung für die Victor Company of Japan,
Limited ist:
JVC Technical Services Europe GmbH
Postfach 10 05 04
61145 Friedberg
Deutschland
Information for Userson Disposal of Old Equipment
[European Union]
Thissymbol indicatesthat the electricaland electronic
equipment should not bedisposed as generalhousehold
waste atitsend-of-life. Instead, the product should behanded
over to the applicable collection point for the recycling of
electricaland electronic equipment for proper treatment,
recovery and recycling in accordance with yournational
legislation.
By disposing of thisproduct correctly, youwill help to conserve
naturalresourcesand will help prevent potentialnegative
effectson the environment and humanhealth which could
otherwisebecaused byinappropriate waste handling of this
product. For more information about collection point and
recycling of thisproduct, please contact your localmunicipal
office, yourhousehold waste disposalservice or the shop
where youpurchased the product.
Penaltiesmaybeapplicable
for incorrect disposalofthiswaste, in accordance with national
legislation.
(Business users)
If youwish to dispose of thisproduct, please visit ourweb
page http://www.jvc.euto obtain information about the take-
back of the product.
[Other Countriesoutside the European Union]
If youwish to dispose of thisproduct, pleasedosoin
accordance with applicable national legislation or other rules
in yourcountry for the treatment of old electricaland
electronic equipment.
Attention:
Thissymbol isonly valid in the European
Union.
Downloaded From VideoCamera-Manual.com Manuals

V
Downloaded From VideoCamera-Manual.com Manuals

2
Introduction
Introduction
Main Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Precautions for Proper Use . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Names of Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Side Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Viewfinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
LCD Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Side Terminal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SD Slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Zoom Lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Basic System Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Displays on the LCD Monitor and Viewfinder . . . . . . . . . . 18
Status Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Enlarged Status Display on LCD Monitor . . . . . . . . . . 19
Auto White Display (Camera Mode Only,
Excluding AUX Mode) . . . . . . . . . . . . . . . . . . . . . . . . 20
Menu Setting Screen . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Alarm Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Zebra Pattern Display . . . . . . . . . . . . . . . . . . . . . . . . . 20
Preparations
Attaching Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Attaching the Zoom Lens . . . . . . . . . . . . . . . . . . . . . . . 21
Attaching the Microphone (Supplied) . . . . . . . . . . . . . . 21
Attaching the Viewfinder (Supplied) . . . . . . . . . . . . . . . 21
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Using AC Power (DC IN Power) . . . . . . . . . . . . . . . . . . . . 22
Using a Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Turning On/Off the Power . . . . . . . . . . . . . . . . . . . . . . . . . 25
Setting the Clock (Initial Setting) . . . . . . . . . . . . . . . . . . . . 26
Adjusting the Monitor Speaker . . . . . . . . . . . . . . . . . . . . . 27
Adjusting Back Focus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Adjusting the LCD Monitor and Viewfinder . . . . . . . . . . . . 28
Tally Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
SDHC Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SDHC Cards to Use . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Formatting (Initializing) SDHC Cards . . . . . . . . . . . . . . 33
Restoring the SDHC Card . . . . . . . . . . . . . . . . . . . . . . 34
Clips Recorded to SDHC Cards . . . . . . . . . . . . . . . . . 35
Recording Clips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Shooting
Basic Shooting Procedures . . . . . . . . . . . . . . . . . . . . . . . .36
Shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Focus Assist Function . . . . . . . . . . . . . . . . . . . . . . . . .37
Selecting System Definition, File Format and Video Forma
t . . .38
Selecting the Aspect Ratio of SD Videos . . . . . . . . . . .39
Adjusting the Iris . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Setting Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Setting the Electronic Shutter . . . . . . . . . . . . . . . . . . . . . .40
Adjusting the White Balance . . . . . . . . . . . . . . . . . . . . . . .42
Adjusting the White Shading . . . . . . . . . . . . . . . . . . . . . . .44
Setting the ND Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Adjusting Audio Input Settings and Recording Level . . . . .46
Setting Audio Input . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
Adjusting Audio Recording Level . . . . . . . . . . . . . . . . .46
Audio Monitor During Recording . . . . . . . . . . . . . . . . .47
Time Code and User’s Bit . . . . . . . . . . . . . . . . . . . . . . . . .48
Displaying Time Code and User’s Bit . . . . . . . . . . . . . .48
Time Code Operation Mode . . . . . . . . . . . . . . . . . . . . .48
Using the Internal Time Code Generator . . . . . . . . . . . . . .49
Presetting the Time Code . . . . . . . . . . . . . . . . . . . . . .49
Presetting the User’s Bit . . . . . . . . . . . . . . . . . . . . . . . .50
Setting Time Code Without Opening the Menu . . . . . .51
Setting User’s Bit Without Opening the Menu . . . . . . .52
Recording Time Code in Continuation of
the Recorded Time Code on SDHC card . . . . . . . . .52
Synchronizing Time Code with External Time Code
Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Setting Zebra Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Setting Spot Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
Viewing Recorded Videos Immediately (Clip Review) . . . .56
Assigning Functions to User Buttons . . . . . . . . . . . . . . . . .57
Protecting Important Scenes (OK Mark Function) . . . . . . .58
Special Recording . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Pre Rec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Clip Continuous Rec . . . . . . . . . . . . . . . . . . . . . . . . . .59
Variable Frame Rec . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Playback
Playing Back Recorded Clips . . . . . . . . . . . . . . . . . . . . . . .61
Thumbnail Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Playing Back . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Thumbnail Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Deleting Clips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Appending and Deleting OK Marks . . . . . . . . . . . . . . . . . .68
Contents
Downloaded From VideoCamera-Manual.com Manuals

3
Menu Display and Detailed Settings
Basic Operations in Menu Screen . . . . . . . . . . . . . . . . . . . 70
Display and Description of the Menu Screen . . . . . . . . 70
Text Input with Software Keyboard . . . . . . . . . . . . . . . . 71
Menu Screen Hierarchical Chart . . . . . . . . . . . . . . . . . . . . 72
Main Menu Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Record Set Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Record Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Rec Mode Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Clip Set Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Audio Set Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Camera Function Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Switch Set Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
FULL AUTO Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Camera Process Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Detail/Adjust... Item . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
White Balance Item . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Shading Mode/Adjust Item . . . . . . . . . . . . . . . . . . . . . .86
Color Matrix/Adjust Item . . . . . . . . . . . . . . . . . . . . . . . 86
TC/UB Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
LCD/VF Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Shooting Assist Item . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Marker Setting Item . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Status Display Item . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
A/V Out Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Others Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Genlock Adjust Item . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Media Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Setup File Manage Menu . . . . . . . . . . . . . . . . . . . . . . . . . 97
Adding/Editing Frequently Used Menu Items
(Favorites Menu) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Adding Menu Items to Favorites Menu . . . . . . . . . . . . 98
Editing Favorites Menu . . . . . . . . . . . . . . . . . . . . . . . . 99
Status Screen
Status Screen in Camera Mode . . . . . . . . . . . . . . . . . . . 102
Status Screen in SD Card Mode . . . . . . . . . . . . . . . . . . .108
Status Screen in IEEE1394 Input Mode . . . . . . . . . . . . . 109
Enlarged Status Display on LCD Monitor . . . . . . . . . . . .110
Camera Features
Marker and Safety Zone Displays (Camera Mode Only,
Excluding AUX Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Smoothening the Skin Color (Skin Detail Function) . . . . 114
Color Bar Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Color Matrix Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . 116
Reproduction of Dark Areas (Black Stretch/Compress
Function) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Configuring Setup Files . . . . . . . . . . . . . . . . . . . . . . . . . .119
Saving Setup Files . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Loading a Setup File . . . . . . . . . . . . . . . . . . . . . . . . .121
Resetting Setup Files . . . . . . . . . . . . . . . . . . . . . . . . .121
Connecting External Devices
Connecting an External Monitor . . . . . . . . . . . . . . . . . . .122
IEEE1394 Connection . . . . . . . . . . . . . . . . . . . . . . . . . . .123
Backup Recording . . . . . . . . . . . . . . . . . . . . . . . . . . .124
Input of Composite Video Signals from External Device
(GY-HM790CHU/GY-HM790U only) . . . . . . . . . . . . . . .125
Input of External Synchronizing Signal (Genlock) . . . . . .126
Displaying Return Video from External Device . . . . . . . .128
Studio System Connection . . . . . . . . . . . . . . . . . . . . .129
Managing/Editing Clips on a PC . . . . . . . . . . . . . . . . . . .130
Remote Control Unit Connection . . . . . . . . . . . . . . . . . . .131
List of Remote Control Unit Functions . . . . . . . . . . . .132
Others
Error Displays and Actions . . . . . . . . . . . . . . . . . . . . . . .134
Tally Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
Alarm Tone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137
How to use this manual
䡵Symbols used
Note :Describes precautions concerning the
operation of this product.
Memo :Describes reference information, such as
functions and usage restrictions of this
product.
A:Indicates the reference page numbers and
reference items.
䡵Content of this manual
●All rights reserved by JVC. Unauthorized duplication or
reprinting of this manual, in whole or in part, is strictly
prohibited.
●All other product names used in this manual are
trademarks or registered trademarks of their respective
companies. Marks such as ™, 姞, 姝have been omitted in
this manual.
●Illustrated designs, specifications and other contents of
this manual are subject to change for improvement
without prior notice.
Downloaded From VideoCamera-Manual.com Manuals

4
Introduction
This camera recorder enables recording of HD/SD format
images to an SDHC card, and also playback of these
images.
[GENLOCK INPUT], [TC IN], [TC OUT]
Terminals and Return Video Function
Equipped with a function that enables use of multiple
cameras as well as use as a studio camera.
SD (Standard Definition) Recording
Supports DV compression of SD images and recording in the
QuickTime or AVI file format.
The use of a wide array of non-linear editing software is also
supported, which helps to ease production of SD videos,
such as DVDs.
Recording in QuickTime File Format
Recording can be made in QuickTime file format of Final Cut
Pro, a video editing software from Apple Inc.
You can edit the recorded clips directly with Final Cut Pro.
Recording in MP4 File Format
This camera supports recording in the MP4 file format for
Windows NLE systems, which can be utilized in a wide range
of non-linear editing environments.
Recording on SDHC Memory Card (Class
6/10)
The absence of mechanisms with the use of SDHC (Class
6/10) as recording media brings about increased operation
reliability. In addition, the improved compatibility with
computers enables high-speed data transfer to NLE as well
as reduction of operating costs.
35 Mbps High Image Quality Mode
This camera recorder is equipped with a 35 Mbps high quality
mode, in addition to the HDV mode bit rate (19/25 Mbps).
Dual Media Slots
Continuous recording is possible by loading two recording
media, thereby allowing a long recording time.
Wide Variety of Recording Formats
This camera recorder supports various HD formats (1080i,
1080p, 720p) as well as SD (DV) formats (480i : U model,
576i : E model), enabling it to be used under various
environments. It also supports 1440x1080 and 1920x1080
full resolution in the 1080 format.
Adoption of MPEG-2 Long GOP for Easy
Editing
Shortens editing and output time by adopting MPEG-2
codec, which puts less stress on the editing computer.
High Resolution via Triplex Offset
2.5k x 1.4k pixels are generated with the Triplex Offset, and a
high resolution of more than 900 horizontal lines and 1000
diagonal lines is achieved using the proprietary front
processing.
Spot Meter Function
The brightest and darkest positions on the screen are
automatically detected and displayed together with the
dynamic range. As this is a pre-gamma value, it allows you to
understand the lighting ratio and prevents overexposure or
underexposure in shooting scenes where lighting is
controlled.
High Resolution Viewfinder
With a high resolution of 852 x 480 in 0.425 inches, the
viewfinder is now more robust and enables more accurate
focusing.
High Resolution LCD Monitor
Equipped with a 4.3inch 800x480 large LCD monitor, both
shooting precision and viewing performance are improved.
Intuitive User Interface
The sophisticated user interface allows more intuitive
operations. Thumbnail display is also available for you to
easily select a recorded clip for playback.
Compact Shoulder Style
By inheriting the compact shoulder style from the GY-HD100
series which is widely accepted in the industry, more stable
shooting can be done on this camera recorder while its weight
remains similar to that of a handheld camera recorder.
Lens Interchangeability
Existing lenses can be used, thus saving on costs. You can
also select the most appropriate lens according to your
shooting requirements.
Professional Batteries
Batteries such as Anton Bauer and IDX batteries that are
used in the broadcast industry can be used with this camera
recorder.
Support for Wide Variety of Output
Supports industrial output such as HD-SDI output and
IEEE1394 output.
Main Features
Downloaded From VideoCamera-Manual.com Manuals

5
Application Software Provided
The [JVC ProHD Clip Manager] application software is
provided for you to copy recorded clips to Windows or
Macintosh computers and for checking the video images.
(For MP4 file format)
Storage and Usage Locations
䡵Allowable ambient temperature and humidity
Be sure to use this unit within the allowable temperature range of
0
f
to 40
f
and a relative humidity of 30 % to 80 %. Using this
unit at a temperature or humidity outside the allowable ranges could
result not only in malfunction but also serious impact on the CCD
elements as small white spots may be generated. Please exercise
care during use.
䡵Strong electromagnetic waves or magnetism
Noise may appear in the picture or audio and/or the colors may be
incorrect if this unit is used near a radio or television transmitting
antenna, in places where strong magnetic fields are generated by
transformers, motors, etc., or near devices emitting radio waves,
such as transceivers or cellular phones.
䡵Use of wireless microphone near this unit
When a wireless microphone or wireless microphone tuner is used
near this unit during recording, the tuner could pick up noise.
䡵Avoid using or placing this unit in the following places.
●Places subject to extreme heat or cold
●Places with excessive dirt or dust
●Places with high humidity or moisture
●Places subject to smoke or vapor such as near a
cooking stove
●Places subject to strong vibrations or unstable surfaces
●In a parked car under direct sunlight or near a heater for
long hours.
䡵Do not place this unit at places that are subject to
radiation or X-rays, or where corrosive gases occur.
䡵Protect this unit from being splashed with water.
(Especially when shooting in the rain)
䡵Protect this unit from getting wet when shooting on a
beach. In addition, salt and sand may adhere to the body.
Be sure to clean the unit after use.
䡵Protect this unit against penetration of dust when using it
in a place subject to sandy dust.
Transportation
Do not drop or hit this unit against a hard object when
transporting.
Power Saving
䡵
When this unit is not in use, be sure to set the [POWER] switch
to
A
OFF
B
in order to reduce power consumption.
The CD-ROM provided with this camera recorder
comes with [JVC ProHD Clip Manager] and other
application software as well as their user guides.
* For details, refer to the user guides for each application
software.
Precautions for Proper Use
Downloaded From VideoCamera-Manual.com Manuals

6
Introduction
Maintenance
䡵Turn off the power before performing any maintenance.
䡵
Wipe the external cabinet of the unit with a soft cloth. Do not
wipe the body with benzene or thinner. Doing so may cause the
surface to melt or turn cloudy. When it is extremely dirty, soak the
cloth in a solution of neutral detergent, wipe the body with it, and
then use a clean cloth to remove the detergent.
Batteries
䡵The following batteries can be used on this unit.
GY-HM790CHU/GY-HM790U : Dionic90 (Anton Bauer)
GY-HM790CHE/GY-HM790E : Endura-HL9 (IDX)
* Models with an E suffix are for the European market and
the UL Listing mark is not applicable.
䡵Make use of the recommended batteries. Heavy batteries
may fall off if not used correctly.
Regular Inspection (Maintenance)
Under normal environment, dust will accumulate on the
camera recorder when it is used over a long period. Dust
may enter the camera recorder especially if it is used
outdoors. This may affect the image and sound quality of the
camera recorder. Check and replace the fan after every 9000
hours (suggested guideline).
You can check the usage time of the fan in the [Others]
menu B[System Information] B[Fan Hour]. (APage 95)
If the fan is used for more than 9000 hours without
replacement, AFAN MAINTENANCE REQUIREDBwill be
displayed every time you turn on the power.
SDHC Cards
Use an SDHC card (4 GB to 32 GB) with Class 6 or higher
performance.
Using cards other than those from Panasonic, TOSHIBA or
SanDisk may result in recording failure or data loss.
Others
䡵Do not insert objects other than the memory card into the
card slot.
䡵Do not block the vent on the unit.
Blocking of the vent causes internal heating and may lead to
burns and fires.
䡵Do not turn off the [POWER] switch or remove the power
cable during recording or playback.
䡵The camera recorder may not show stable pictures for a
few seconds immediately after the power is turned on, but
this is not a malfunction.
䡵When the video signal output terminals are not in use, put
on the covers to prevent damage to the terminals.
䡵Do not drop this unit or subject it to strong impact or
vibration as it is a precision equipment.
䡵Optical performance of lens
Due to the optical performance of the lens, color divergence
phenomena (magnification chromatic aberration) may occur
at the periphery of the image. This is not a camera
malfunction.
LCD Monitor and Viewfinder
䡵The LCD monitor and viewfinder screens are
manufactured using high-precision technology. Black spots
may appear on the LCD monitor and viewfinder screens, or
red, blue, and/or white spots may not disappear. However,
this is not a malfunction and these spots are not recorded on
the SDHC card.
䡵If you use this unit continuously for a long period of time,
the characters displayed in the viewfinder may temporarily
remain on the screen. This is not recorded on the SDHC
card. They will not appear after you turn the power off and
then on again.
䡵If you use this unit in a cold place, the images may appear
to lag on the screen, but this is not a malfunction. Retained
images are not recorded on the SDHC card.
䡵Do not press against the surface with force or subject it to
strong impact. Doing so may damage or break the screens.
䡵Noise may appear in the viewfinder when switching
between the live video and playback images.
Due to the characteristic of the viewfinder display device,
colors may appear on the images when you blink your eyes.
This is not a malfunction. It does not affect the recorded
images, SDI output, or component output.
Precautions for Proper Use
(continued)
Downloaded From VideoCamera-Manual.com Manuals

7
Handling of SDHC Cards
䡵The access lamp lights up in red when data on the SDHC
card is being accessed. Do not remove the SDHC card
during data access (such as recording, playback, or
formatting). Do not turn off the power or remove the battery
and AC adapter during access either.
䡵Do not use or store the SDHC card in a place that is
subject to static electricity or electrical noise.
䡵Do not place the SDHC card near locations that are
exposed to strong magnetic fields or radio waves.
䡵Inserting the SDHC card incorrectly may result in damage
of this unit or the SDHC card.
䡵We are not liable for any accidental loss of data stored on
the SDHC card. Please back up any important data.
䡵Make use of the SDHC card within the prescribed
conditions of use.
䡵Do not use it at the following locations.
Places that are subject to direct sunlight, high humidity or
corrosion, places near thermal equipment, sandy or dusty
places, or in a car under the sun with the doors and windows
closed.
䡵Do not bend or drop the SDHC card, or subject it to strong
impact or vibration.
䡵When formatting or erasing data using the camera
recorder, only the file administration information is changed.
The data is not completely erased from the SDHC card. If
you want to completely erase all of the data, we recommend
either using commercially available software that is specially
designed for that purpose, or by physically destroying the
SDHC card with a hammer, etc.
䡵Do not dismantle or modify the SDHC card.
䡵Do not touch the terminals with your hands or with a metal
object.
䡵Do not allow dust, dirt, water, or foreign objects to adhere
to the terminals.
䡵Do not remove the labels or stick other labels or stickers
on the SDHC cards.
䡵Do not use pencils or ballpoint pens to write on the SDHC
cards. Always use oil-based pens.
䡵If you format (initialize) the SDHC card, all data recorded
on the card, including video data and setup files, will be
deleted.
䡵You are recommended to use cards that are formatted
(initialized) on this camera recorder.
●
The SDHC card may be damaged if the camera recorder is
not operated correctly. Formatting (Initializing) the SDHC
card may allow it to operate correctly.
●
SDHC cards that have been formatted (initialized) on other
cameras, computers or peripheral equipment may not
operate correctly. In this case, format (initialize) the SDHC
card on this camera recorder.
Characteristic CCD Phenomena
䡵Smear and blooming
Due to the physical structure of CCDs, vertical streaking
(called “smear”) may occur when shooting an extremely
bright light source or expansion of light (called “blooming”)
may appear around it. Although the CCD employed in this
unit produces very little smear or blooming, these
phenomena may still occur when shooting a bright light
source.
䡵Moire or aliasing
Stripes, lines or other fine patterns may appear jagged when
they are shot.
䡵White dots
High temperatures can cause CCD sensor pixels to produce
white dots in the image. This is especially prominent when
boosting the sensitivity.
This is a characteristic of the charged-coupled device (CCD).
As far as possible, use this unit under conditions where the
temperature of this unit does not increase.
Copyright
Any recordings made on this camera recorder that are
played back for profit or public preview may infringe on the
rights of the owner of the recordings.
Do not use the recordings for purpose other than personal
enjoyment without prior consent from the owner.
Smear
Vertical pale streaking appearing at
high luminous object
High luminous object (such as light
bulbs, sun)
Blooming
Blurring in highlight
Monitor Screen
Downloaded From VideoCamera-Manual.com Manuals

8
Introduction
This camera recorder has three operation modes - Camera mode, Media mode, and USB mode.
The operation mode indicator on the left side of the camera recorder lights up according to the mode. The AUX mode is only
available on GY-HM790CHU/GY-HM790U.
Operation Mode
Camera Mode Media Mode
USB Mode
(USB Mass Storage Class)
Camera Mode IEEE1394
Mode
SD Card Mode
Thumbnail Display
Playback
(Playback/Pause/Fast Forward/
Rewind/Clip Jump)
[CAM/MEDIA] Selection Button
[CAM/MEDIA]
Selection
Button
[CAM/MEDIA] Selection Button
Playback Button
Stop Button
Connection disabled on PC
[CAM/MEDIA] Button
USB Connection (When the confirmation to change to USB mode
appears and [Change] is selected)
Playback Button
Stop Button
Operation Mode Indicator
AUX Mode
(U model only)
[GENLOCK/AUX]
Selection Switch
Downloaded From VideoCamera-Manual.com Manuals

9
Operation Mode
Operation
Mode
Indicator
Description
Camera
Mode
Camera
Mode
Blue This is the camera shooting mode. The camera recorder starts up in Camera mode when
the power is turned on.
Memo :
●Images recorded on the SDHC card cannot be played back in this mode. However, you
can check (play back) the most recently recorded image using the Clip Review function.
(APage 56)
Purple When [Rec Mode] is set to AVariable FrameB, the operation mode indicator lights up in
purple during Variable Frame REC in Camera mode. (APage 60)
AUX Mode
(U model)
Blue This is a mode for input and recording of composite video signals from an external device.
Media
Mode
SD Card
Mode
Green This mode allows you to play back or delete clips recorded on the SDHC card.
Press the [CAM/MEDIA] selection button to enter SD Card mode when you are not
shooting in Camera mode. Once the camera recorder is in SD Card mode, thumbnails of
the selected media slot are displayed.
IEEE1394
Mode
Orange This is the input mode for video images from the IEEE1394-connected equipment.
The camera recorder enters IEEE1394 mode when you press the [CAM/MEDIA] selection
button while the power of the equipment connected to the [IEEE1394] terminal is turned on
during thumbnail display in Media mode (SD Card mode). (Only for HD video systems)
When an SD video system is in use, availability of the [IEEE1394] terminal connection
cannot be detected in Media mode (SD Card mode). Allow the camera recorder to detect
the [IEEE1394] terminal connection in advance by turning on the power of the connected
equipment in Camera mode.
Once the camera recorder is in IEEE1394 mode, the playback images of the connected
equipment are displayed.
However, if the IEEE1394 connection is not recognized (such as when the power of the
IEEE1394-connected equipment is not turned on), the camera recorder will switch to
Camera mode instead.
Press the [CAM/MEDIA] selection button during IEEE1394 mode to switch to Camera
mode.
If the power of the equipment connected to the [IEEE1394] terminal is OFF or if connection
is canceled in IEEE1394 mode, the camera recorder will not automatically switch to other
modes. To quit IEEE1394 mode, you must operate the [CAM/MEDIA] selection button.
Note :
●This mode is used for viewing images input to the [IEEE1394] terminal from an external
device, and not intended for recording input images on the camera recorder.
USB Mode Orange This mode allows you to connect to a PC and transfer the files on an SDHC card to the PC.
When the camera recorder is connected to a USB cable, the message AChange to USB
ModeBappears. Select [Change] and press the Set button to switch to USB mode.
(APage 130)
In USB mode, the camera recorder is recognized by the connected PC as a peripheral
drive (USB mass storage class only). Disable the connection on the PC and remove the
USB cable from the camera recorder to switch to Camera mode. (APage 130)
Memo :
●When a USB cable is connected, the message appears after recording stops.
●If playback is in progress, the message appears once the files are closed automatically,
such as when playback stops.
Downloaded From VideoCamera-Manual.com Manuals

10
Introduction
A
Front Tally Lamp (
A
Page 30, 94)
B
Viewfinder Cable Clamp (
A
Page 21)
C
[ZEBRA ON/OFF] Zebra ON/OFF Switch (
A
Page 20)
[SKIN AREA/SPOT METER] Skin Area/Spot Meter Switch
(
A
Page 80)
D
[AWB] Auto White Balance Button (
A
Page 42)
●Setting the [WHT.BAL.] selection switch (APage 12) I
on the control panel on the right side of the camera
recorder to AABor ABBstarts up the Auto White function.
●If the [WHT.BAL.] selection switch (APage 12) Iis set
to APRESETB, you can switch the color temperature of the
preset white balance.
E
Lens Lock Lever (
A
Page 21)
F
[MONITOR SELECT] Audio Monitor Selection Switch
(
A
Page 46)
G
[DISPLAY] Display Button (
A
Page 30)
H
[CAM/MEDIA] Camera/Media Mode Selection Button
(
A
Page 8)
I
[FULL AUTO] Full Auto Shooting (FAS) Switch
(
A
Page 81)
J
Monitor Speaker (Cheek Pad) (
A
Page 27)
K
Shoe
For mounting separately sold lights and accessories.
L
Microphone Holder Lock Knob (
A
Page 21)
M
Microphone Holder (
A
Page 21)
N
Microphone (
A
Page 21)
Names of Parts
LN M K
B
A
DC E
J
FGHI
Viewfinder (APage 13)
Side Control Panel (APage 12)
LCD Monitor (APage 13)
Zoom Lens (APage 16)
Downloaded From VideoCamera-Manual.com Manuals

11
O
Back Tally Lamp (
A
Page 30, 94)
P
[PHONES] Earphone Connector (
Φ
3.5) (
A
Page 47)
Q
[LENS] Lens Connector (12-pin Connector)
(
A
Page 21)
R[INPUT1/INPUT2] Audio Input Terminal 1, 2
(XLR 3-pin ⳯2) (APage 46)
S
Microphone Cable Clamp (
A
Page 21)
T
[CH-2 INPUT] CH-2 Audio Input Terminal Selection
Switch
Select the audio input terminal to record to CH-2. (
A
Page 46)
Memo :
●
Audio from [INPUT1] terminal is input to CH-1 regardless of the
setting.
U
[AUDIO INPUT 1/2] Audio Input Signal Selection
Switch (
A
Page 46)
V
Viewfinder Connector (20-pin) (
A
Page 21)
W
Accessory Mounting Screw Hole (x2)
X
[FOCUS ASSIST] Focus Assist Button (
A
Page 37)
Y
Record Button Lock Switch
Set the switch toward the lens to lock the [REC] trigger
button Z.
Memo :
●
The [REC] trigger button (
A
Page 12)
K
at the side control
panel on the right of the camera recorder is not locked.
Z
[REC] Rec Trigger Button (Recording Start/Stop)
Starts/stops recording.
Memo :
●
The [REC] trigger button (
A
Page 12)
K
at the side control
panel on the right of the camera recorder is interlocked with
this button.
aHandle
Z
O
Q
P
a
R
S
V
UT
XY W
W
Battery Adapter
(APage 22)
Side Terminal (APage 14)
SDHC Slot
(APage 15)
Downloaded From VideoCamera-Manual.com Manuals

12
Introduction
Side Control Panel
A
[VF BRIGHT] Viewfinder Luminance Adjustment Knob
(
A
Page 29)
B
[VF PEAKING] Contour Adjustment Knob (
A
Page 29)
Memo :
●
This knob does not function when Focus Assist is activated.
(
A
Page 37)
C
[FOCUS ASSIST] Focus Assist Button
Press this button during shooting to display the focus area in
either blue, red, or green. This enables easy and accurate
focusing. (APage 37)
D
[USER1], [USER2], [USER3] User Buttons (
A
Page 79)
Use these buttons to switch shooting conditions according to
the object. The functions change as below according to the
operation mode (APage 8).
Memo :
●
Set the functions of the [USER1,USER2,USER3] buttons in
the menu. (
A
Page 79)
●
When the menu screen is displayed, these buttons function
as the menu operation buttons.
(
A
Page 70 [Operation Buttons])
E
[MENU] Menu Button (
A
Page 70)
F
[ND FILTER] ND Filter Switch (
A
Page 45)
G
[STATUS] Status Screen Display Button
●
Press the [STATUS] button to display the status screen on
the viewfinder and LCD monitor during normal screen
display (when the menu screen is not displayed).
(
A
Page 18 [Status Screen])
●
Switches between [Main Menu] and [Favorites Menu] when
the [STATUS] button is pressed while the menu screen is
displayed. (
A
Page 70)
H
[GAIN] Sensitivity Selection Switch (
A
Page 40)
I
[WHT.BAL.] White Balance Selection Switch (
A
Page 42)
You can select one of the three white balance types.
J
[POWER] Power ON/OFF Switch
Turns ON/OFF the power.
When the power is OFF, APOFFBappears on the LCD
monitor and viewfinder.
Wait for 5 seconds or more to turn on the power again.
K
[REC] Rec Trigger Button (Recording Start/Stop)
Starts/stops recording.
The [REC] trigger button (APage 11) Zon top and the
[REC] trigger button (APage 16) of the lens are interlocked
with this button.
Memo :
●
When [1394 Rec Trigger] in the [Others] menu is set to
A
Split
B
, this button becomes the recording start/stop button
of the external equipment. (
A
Page 94)
(
A
Page 124 [Backup Recording])
L
[AUDIO LEVEL CH-1/CH-2]/[AUTO] CH-1/CH-2
Recording Level Adjustment Knob/Auto Indicator
(
A
Page 46)
M
[CANCEL] Cancel Button
Cancels various settings and stops playback.
N
Cross-Shaped Button (
JKH
I
)/Set Button (
R
)
The function changes according to the operation status of
the camera recorder.
䡵During menu operation (all modes) (APage 70)
Center Set button (
R
) : Confirms menu items and setting
values
Cross-Shaped Button (
JK
) : Selects menu items and setting
values
䡵During Camera mode (Except AUX mode)
Shutter operation:
Center Set button (
R
) : Shutter ON/OFF
Cross-Shaped Button (
JK
) : Switches shutter speed when shutter
is ON
AE level operation : Cross-shaped button (HI)
Names of Parts (continued)
During Camera mode
(Except AUX mode) During Media mode
[USER1]
Button
●
Activates the function assigned to
[USER1] in the menu.
●
Loads the [TC Preset] screen
when pressed together with the
[MENU] button. (
A
Page 51)
Adds/deletes OK
mark.
(APage 68)
[USER2]
Button
●
Activates the function assigned to
[USER2] in the menu.
●
Resets settings on the [TC Preset]/
[UB Preset] screen when pressed.
(
A
Page 51, 52)
Deletes clips
(APage 66)
[USER3]
Button
●
Activates the function assigned to
[USER3] in the menu.
^
A
B
D
E
F
G
I
J
L
M
N
O
P
K
C
H
Downloaded From VideoCamera-Manual.com Manuals

13
Memo :
●When [Camera Function] menu B[Switch Set] B
[AE LEVEL] is set to AAE LEVEL/VFRB, the cross-shaped
button (HI) is used to set the number of frames during
Variable Frame Rec.
(APage 60 [Variable Frame Rec])
(APage 80 [AE LEVEL])
䡵During Media mode (SD Card mode) (APage 61)
Thumbnail operation : Cross-shaped button (JKH I), center
Set button (R)
O
Operation Mode Indicator
Lights up as below according to the operation mode.
(APage 8)
Memo :
●You can select whether to light up the indicator using
[Mode LED] in the [Others] menu. (APage 94)
P
[MONITOR] Audio Monitor Level Adjustment Knob
For adjusting the volume of the monitor speaker and earphones.
Viewfinder
(APage 29)
AViewfinder Slide Lock Ring
For loosening the ring and adjusting the position of the
viewfinder Eto the left or right.
B
Eyepiece Focus Ring
For adjusting the visibility.
C
Viewfinder Eyepiece Lock Ring
For loosening the ring and adjusting the eyepiece position of
the viewfinder to the front or back.
D
Viewfinder
E
Eyepiece
Prevents external light from entering the viewfinder screen
and cameraman’s vision.
LCD Monitor
ALCD Monitor (APage 28)
B
[LCD PEAKING +/-] LCD Contour Adjustment Button
(
A
Page 28)
C
[LCD BRIGHT +/-] LCD Display Brightness
Adjustment Button (
A
Page 28)
D[AUDIO SELECT CH-1/CH-2] Audio Recording Mode
Switch (APage 46)
E
[TC DISPLAY] TC/UB Display Switch (
A
Page 48)
F
[TC GENE.] Time Code Generator Switch (
A
Page 48)
G
LCD Cover Lock Release Knob (
A
Page 28)
Operation Mode Color
Camera Mode (Except AUX mode)
Blue/Purple
AUX Mode (U model only) Blue
Media Mode (SD Card Mode) Green
Media Mode (IEEE1394 Mode) Orange
USB Mode Orange
ED
A
C
B
B
C
D
EF
A
G
When the LCD monitor is open
Downloaded From VideoCamera-Manual.com Manuals

14
Introduction
Side Terminal
A[Y/VIDEO] Y/Composite Video Signal Output
Terminal (BNC) (APage 122)
B
[PB] PB Video Signal Output Terminal (BNC)
(
A
Page 122)
C[GENLOCK/AUX] Genlock/AUX Selection Switch
(U model only) (APage 125)
D
[GENLOCK/AUX IN] Genlock/AUX Input Terminal
(U model)/[GENLOCK INPUT] Genlock Input Terminal
(E model)
U model : For input of external synchronizing signals or
external composite video signals.
(APage 125 [Input of Composite Video Signals
from External Device (GY-HM790CHU/GY-
HM790U only)])
E model : For input of external synchronizing signals.
(APage 126 [Input of External Synchronizing
Signal (Genlock)])
E[TC IN] Time Code Input Terminal (BNC)
( APage 48to 52)
F[TC OUT] Time Code Output Terminal (BNC)
( APage 48to 52)
G[STUDIO] Studio Terminal (10-pin) (APage 128)
Connect to this terminal when combining the use of products,
such as a transmission unit, from a different manufacturer.
H
[PR] PR Video Signal Output Terminal (BNC)
(
A
Page 122)
I
[DC INPUT] DC Input Terminal (
A
Page 22)
Input terminal for DC 12 V power supply. Connects with an
AC adapter.
J
[REMOTE] Remote Terminal (
A
Page 131)
K
[HD/SD-SDI] HD/SD-SDI Output Terminal (BNC)
(
A
Page 122)
L
[AUDIO OUTPUT CH-1/CH-2] Audio Output Terminal
(RCA)
Output terminal for audio signals.
●
Input audio signals are output during Camera mode.
●
Playback audio signals are output during Media mode.
●
Audio from input audio signals is output during HD/DV signal
(IEEE1394) input.
Memo :
●
Alarm tone is not output.
M
[INT/EXT] IEEE1394 Interface Terminal Switch
(
A
Page 123)
For selecting a valid IEEE1394 interface terminal.
N
Shoulder Pad Slide Button
For adjusting the shoulder pad position. Press this button to
adjust the shoulder pad Oposition to the front or back.
O
Shoulder Pad
P
[USB] USB Terminal (
A
Page 130)
Q
[IEEE1394] IEEE1394 Terminal (4-pin)
For connecting digital video equipment with IEEE1394
terminal using an IEEE1394 cable (sold separately).
To enable this terminal, set the [INT/EXT] IEEE1394 terminal
switch Mto [EXT].
(APage 123[IEEE1394 Connection])
Note :
●
When connecting IEEE1394 cables, check that the
connectors are facing the right direction before you insert.
Memo :
●
Put on the covers when the connectors are not in use.
Names of Parts (continued)
Pin No. Signal Input/
Output
1NC ^
2 CALL TALLY IN
3RM TALLY OUT
4 RM PREVIEW OUT
5NC ^
6NC ^
7 TALLY IN IN
8 RETURN GND ^
9 RETURN IN IN
10 GND ^
KL M N O
P
Q
IH
C
A
D
E
F
G
J
B
[EXT] :Enables IEEE1394 signals from the [IEEE1394]
terminal Q.
[INT] :Enables the accessory connector Bat the rear
of the camera recorder. (APage 15)
Downloaded From VideoCamera-Manual.com Manuals

15
SD Slot
(APage 31)
ACard Slot A Status Indicator
B
[SLOT SELECT] Card Slot Selection Button
For switching SDHC cards.
C
SDHC Card Cover
D
Card Slot B Status Indicator
E
[OPEN] SDHC Card Cover Open/Close Knob
Rear
AShoulder Belt Mount (x2)
For mounting a shoulder belt (sold separately).
Note :
●
Be sure to use a shoulder belt with the strength to withstand
the weight of this camera recorder.
●
If the shoulder belt is not properly attached, the camera
recorder may fall and cause injuries.
●
Check the instruction manual provided with the shoulder belt
before using.
B
Accessory Connection Terminal
Terminal for connecting a KA-MR100G (Memory Recorder :
sold separately) or KA-M790G (Multicore Remote Adapter :
sold separately) unit.
Memo :
●When using this terminal, make sure that the Battery
Adapter Cis removed.
C
Battery Adapter (
A
Page 22)
The shape is different for GY-HM790CHU/GY-HM790U and
GY-HM790CHE/GY-HM790E.
* The above is the illustration for GY-HM790CHE/GY-
HM790E.
D
C
E
B
A
A
A
B
C
Downloaded From VideoCamera-Manual.com Manuals

16
Introduction
Zoom Lens
(Supplied with GY-HM790U/GY-HM790E only)
AFocus Ring
B
Zoom Lever/Ring
To operate zoom with this lever, turn the [ZOOM] switch M
and set it to AMANU.B.
C
Iris Ring
To operate auto iris, set the iris mode switch Hto AAB.
D
Lens Cable
E
[REC] Record Trigger Button
Starts/stops recording.
F
[RET] Return Video Button
Press this button to play back and check the latest clip,
according to the settings under [Clip Review] of [Switch Set]
in the [Camera Function] menu. (APage 79)
(APage 56 [Viewing Recorded Videos Immediately (Clip
Review)])
Memo :
●
When [LENS RET] of [Switch Set...] in the [Camera Function]
menu is set to
A
Focus Assist
B
, this button functions as the
Focus Assist button. When it is set to
A
Return
B
, a return
video is displayed. (
A
Page 79)
G
Zoom Servo Control Lever
To operate zoom servo with the zoom servo control lever, set
the [ZOOM] switch Mto ASERVOB.
●
Zooms into wide angle and increases the angle of view
when
A
W
B
is pressed.
●
Zooms into telephoto and decreases the angle of view when
A
T
B
is pressed.
●
Zoom speed increases when the lever is pressed hard.
H
Iris Mode Switch
I
Iris Momentary Button
Press and hold this button to change to auto iris mode when
the iris mode switch His set at AMB.
J
[I.G.] Iris Speed Adjustment Knob
If the speed is set too fast, opening/closing of the iris
becomes unstable and hunting may occur. Readjust the
speed in this case.
K
Filter Built-In Screw
A transparent or UV filter for lens protection can be installed
inside the lens hood from the front. Filters for various effects
can also be used.
●Installable filter types
L
Zoom Servo Connector
For connecting a zoom servo unit (sold separately).
M
[ZOOM] Zoom Switch
N
Back Focus Ring/Lock Screw
Exclusive ring for adjusting the back focus. After adjusting,
secure with a lock screw.
(APage 28 [Adjusting Back Focus])
O
[M] Macro Focus Ring (for close-ups)
Turn the ring in the direction of the arrow to take close-up
shots of small objects.
Normal focusing and zooming cannot be performed in macro
mode.
To take macro shots
●Set focus ring Ato infinity (n).
●Set zoom ring Bto the maximum wide angle.
●Rotate this ring in the direction of the arrow to adjust
focus on the object.
Note :
●
As the back focus knob is located nearby, be careful not to
mistake the two knobs.
●
Do not forget to restore the macro ring to its original position
after use. (
A
Page 28 [Adjusting Back Focus])
Names of Parts (continued)
M
RET
IRIS
A M
W
T
REC
H
ABC
I
GFE
NL O
DJ
K
MANU.SERVO
ZOOM
M
CANON KT14 x 4.4KRSJ A: Auto iris operation mode.
M: Manual iris operation mode.
When installed on the hood : 82 mm P0.75
When installed on the lens body : 72 mm P0.75
SERVO : Enables zooming with the zoom servo control
lever G.
MANU. : Enables zooming with the zoom lever/ring B.
Downloaded From VideoCamera-Manual.com Manuals
Other manuals for GY-HM790CHU
1
This manual suits for next models
3
Table of contents
Other JVC Camcorder manuals

JVC
JVC GZMC100 - Everio 2MP 4 GB Microdrive... User manual

JVC
JVC GR-DF550US User manual

JVC
JVC GR-FX14 User manual

JVC
JVC GR-DV2000 User manual

JVC
JVC 2012 Everio User manual

JVC
JVC Everio Controller Instructions for use

JVC
JVC GR-D228 User manual

JVC
JVC GR-SXM256 User manual

JVC
JVC GZ-MG67AA User manual

JVC
JVC GR-DVL400ED User manual