JVC GR-DVF11U User manual

JVC Service and Engineering
Digital Video Cassette
Technology
Adjusting the Digital Video Cassette
Camera with JVC Service Support
System Software
JVC Service and Engineering
Company of America
Engineering Department
10 New Maple Avenue
Pine Brook, NJ 07058-9641
June 2001

Digital Video Cassette
Technology
Adjusting the Digital Video Cassette
Camera with JVC Service Support System
Software

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© JVC Service and Engineering Company of America, 1999, 2000
All rights reserved. No part of this publication may be reproduced in any form, nor may it be
stored in a retrieval system or transmitted in any form, without written permission from the
Engineering Department of JVC Service and Engineering Company of America, a division of
JVC Americas Corp.

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Table of Contents
Introduction .................................................................................................................................................. 1
Required Tools................................................................................................................................. 2
Software Installation......................................................................................................................... 4
Camera Connection ......................................................................................................................... 4
Software Functions ..................................................................................................................................... 9
Control Functions ............................................................................................................................. 9
Information Functions .................................................................................................................... 23
Adjustment Functions .................................................................................................................... 43
Data Dump Definition................................................................................................................................ 92
Standard Dump .............................................................................................................................. 92
Deck Dump .................................................................................................................................... 97

Adjusting the Digital Video Cassette Camera with JVC Service Support System Software
1
Introduction
JVC developed the Service Support System software to aid technicians in camera repair. All
cameras now manufactured by JVC require a connection to a personal computer running JVC
Service Support System software for electrical adjustments.
This seminar’s scope is limited to the following models:
• GR-DVF11U
• GR-DVF21U
• GR-DVF31U
• GR-DVM50U
• GR-DVM70U

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Required Tools
The tools required for camera adjustment are listed in the tables.
Tool List
Alignment Tape
MC-1
Blank Tape
M-DV30ME
Camera Stand
YTU93079 x 2
Cleaning Cloth
KSMM-01
Cleaning Tape
VFK1449S-V
Color Bar Chart
YTU94133C
Focus Chart
YTU92001-050
Gray Scale Chart
YTU94133A
Infinity
Adjustment Lens
YTU92001B
Light Box
YTU93096A
PC Cable
QAM0099-002
Screwdriver
YTU94048A
Step-up Ring
See Table 2
Jig Cable
See Table 2
Service Support
Software
See Table 2
Extension
Connector
See Table 3
AC Adapter
See Table 4
Docking Station
See Table 4
Filters
See Table 5
Digital Voltmeter
Frequency
Counter
300 MHz
Oscilloscope
Personal
Computer
See Table 6
12.0 ±0.2 VDC
1.7 A
Power Supply
Vectorscope
Table 1 Required Tools

Adjusting the Digital Video Cassette Camera with JVC Service Support System Software
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Model Number Step-up Ring Jig Cable Service Support Software
GR-DVF11U YTU92001-111 YTU93082C YTU94057-41
GR-DVF21U YTU92001-111 YTU93082C YTU94057-41
GR-DVF31U YTU92001-111 YTU93082C YTU94057-41
GR-DVM50U YTU92001-105 YTU93091B YTU94057-39
GR-DVM70U YTU92001-105 YTU93091B YTU94057-39
Table 2 Model Specific Tools
Model Number Extension Connector
GR-DVM50U 2 pieces YTU94145A
GR-DVM70U 2 pieces YTU94145A
Table 3 Special Tools
Model Number AC Adapter Docking Station DC Cord
GR-DVF11U AA-V20U LYH30039-001A
GR-DVF21U AA-V20U LYH30039-001A
GR-DVF31U AA-V20U LYH30039-001A
GR-DVM50U AA-V50U CU-V501U LY31176-003A
GR-DVM70U AA-V50U CU-V501U LY31176-004A
Table 4 Required Accessories
Filter
ND 0.3
ND 0.4
ND 1.2
ND 3.0
LLB12
Table 5 Required Filters
Personal Computer Specifications
Operating System Microsoft® Windows® 95 or Windows® 98
Processor 160 MHz Pentium
Minimum RAM Requirement 16 MB
Minimum Available Hard Disk
Space
1 MB
Minimum Color Display 640 X 480 pixels, 256 colors
Recommended Color Display 800 X 600 pixels, 65k colors
Serial Port 9600 BPS baud rate, RS-232C terminal with 9 pin
male D-sub serial connector
Mouse Windows® compatible mouse
Floppy Disk Drive 3.5 inch Floppy Disk drive (1.44 MB)
Table 6 Personal Computer Specifications

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Software Installation
Use the following procedure to install the JVC Service Support System software.
1. Insert the Floppy Disk containing the software into the computer’s Floppy
Disk Drive.
2. Using the Windows® Explorer or File Manager locate the Setup application
on the Floppy Disk.
3. Run the Setup application.
Figure 1 Setup Application
4. At the end of the installation the final screen prompts you to open the
readme file. Click the check box before you click the Finish button. Read
the readme file when it is displayed.
5. After you have read the readme file, select Exit from the File menu to close
the file.
Camera Connection
Connect the camera to the computer.
1. Connect the PC Cable’s, P/N QAM0099-002, DSUB-9 plug to a free serial
communications port on the computer. Make a note of which port you used.
2. Connect the cable’s 3.5 mm diameter plug to the JLIP Connector on the
camera. The location of the connector varies according to model. Use the
appropriate figure as a guide for the connector’s location.

Adjusting the Digital Video Cassette Camera with JVC Service Support System Software
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GR-DVF11U, GR-DVF21U, GR-DVF31U
Figure 2 GR-DVF11U Computer Connection
GR-DVM50U, GR-DVM70U
Figure 3 GR-DVM50U Computer Connection

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Starting the Software
Use the following procedure to start the JVC Service Support System software.
1. Set the camera’s Power Dial to the Play position.
2. Start the JVC Service Support System software.
3. Select the appropriate Serial Port in the Serial Port Configuration dialog
box. Click the OK button
Figure 4 Serial Port Configuration
4. Select the NTSC Color System and New (YTU93096A) Light Box Type in
the Camera Configuration dialog box. Click the OK button.
Figure 5 Camera Configuration
5. Wait for the software to start. The main program window appears.
Figure 6 Title Bar

Adjusting the Digital Video Cassette Camera with JVC Service Support System Software
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6. The Inspector window appears. Close the Inspector window by clicking the
Close button, that is the xbutton in the upper right corner of the window.
Figure 7 Inspector Window
7. Notice that the window contains a menu bar and a toolbar. The menu bar
has three menus with several entries:
• File
• Inspector
• Controller
• Camera
• DSP
• Deck
• VTR Automatic Running Utility
• EEPROM Utility
• Emergency Utility
• Adjustment Utility
• Exit

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• Option
• Set Clock
• About CPU
• Help
• About
8. The toolbar has 12 buttons. Position the mouse pointer over each button on
the toolbar. Notice that an on-screen description of the toolbar button
appears. These descriptions are called ToolTips. The ToolTips disappear
after several seconds.
In addition, the toolbar button description also appears in the status bar.
Figure 8 ToolTips
The description for each of the 12 buttons on the toolbar is:
• Inspector
• Camera Controller
• DSP Controller
• Deck Controller
• VTR Automatic Running Utility
• EEPROM Utility
• Emergency Utility
• Adjustment Utility
• Zoom Tele
• Zoom Wide
• Focus Far
• Focus Near

Adjusting the Digital Video Cassette Camera with JVC Service Support System Software
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Software Functions
The software functions are divided into three groups:
• Control Functions
• Information Functions
• Adjustment Functions
Control Functions
The control functions are divided into two groups:
• Camera Operation
• Programmed Camera Operation
Camera Operation
There are three windows that control camera operation:
• Deck Controller
• Camera
• DSP
Deck Controller
The Deck Controller window controls the tape transport. Use the following procedure to learn
about the Deck Controller window.
1. Click the Deck Controller toolbar button.
Figure 9 Deck Controller Button

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2. The Deck Controller window opens.
Figure 10 Deck Controller Window
3. Select the FA Deck tab if it is not already selected.
4. Load a previously recorded cassette into the unit. Make sure the Record
Prevention Tab is closed.
5. Use the Deck Controller window as a remote control to operate the unit.
The operation for the Rewind, Play, Fast Forward, Stop and Pause buttons
is the same as the buttons located on the unit itself.
The Eject button operates only when the cassette cover is open.
6. The Deck Controller window allows you to turn off the ATF (Automatic
Tracking). Click the Down Arrow next to ATF and select OFF.
7. The Editing window opens. Hold down the keyboard’s Shift key and click
the Up Arrow in the Editing window five times so the data in the window
changes to 50. Then click the OK button.
Figure 11 ATF Editing Window
8. Notice that now the video has block noise and the audio is distorted.

Adjusting the Digital Video Cassette Camera with JVC Service Support System Software
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9. Select the FA Camera tab in the Deck Controller window. The unit
switches to the Camera mode. The Deck Controller window changes to as
shown in the figure.
Figure 12 Deck Controller Window in FA Camera Mode
10. Select the SP mode by clicking the SP Tape Speed button.
11. Click the Recording Start/Stop button to start recording. Record for a few
minutes.
12. Click the Recording Start/Stop button again to pause recording.
13. Click the LP Tape Speed button to select the LP mode. Click the Recording
Start/Stop to continue recording.
Camera Controller
The Camera Controller window controls the camera. Use the following procedure to learn
about the Camera Controller window.
1. Select Controller from the File menu. Then select Camera.
Figure 13 Camera Controller Menu

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2. The Camera Controller window appears.
Figure 14 Camera Controller Window
3. Experiment with the settings until you understand the effect of each one.
• Iris
• AUTO
• Iris opens to the optimum setting.
• CLOSE
• Iris is closed.
• OPEN
• Iris is fully opened.
• PWM
• Iris is set by the software user.
• AGC
• AUTO
• AGC is on.
• OFF
• AGC is off.
• ON
• AGC gain is set to the maximum.

Adjusting the Digital Video Cassette Camera with JVC Service Support System Software
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• Shutter Speed
• AUTO
• Shutter speed is set to the optimum value.
• All others
• Shutter speed is as selected.
• White Balance
• AUTO
• White balance is set to the optimum setting.
• CLOUDY
• Sets white balance for a cloudy day.
• SUNNY
• Sets white balance for a sunny day.
• HALOGEN
• Sets white balance for indoors use.
• MWB
• Sets white balance to manual.
• LOCK
• Adjusts and locks the manual white balance.
4. Close the Camera Controller window.
Main Program Window
The zoom and focus functions are controlled from the main program window. Use the
following procedure to learn about them.
1. Position the mouse pointer over the Zoom Wide toolbar button. Click and
hold the left mouse button. Notice that the camera’s lens moves toward the
wide angle position as long as the mouse button is held down.
2. Repeat the above step except use the Zoom Tele toolbar button to move the
lens toward the telephoto position.
3. Control the zoom speed by pressing and holding the keyboard’s Shift or Ctrl
keys while zooming. Notice the speed increases while holding the Ctrl key,
faster while holding Ctrl and Shift keys, and fastest while holding the Shift
key.

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4. Set the zoom lens to the wide angle position by positioning the mouse
pointer over the Zoom Wide toolbar button. Click and hold the left mouse
button down, then click the right mouse button. The lens moves to the
maximum wide angle position.
5. Set the zoom lens to the telephoto position by positioning the mouse pointer
over the Zoom Tele toolbar button. Click and hold the left mouse button
down, then click the right mouse button. The lens moves to the maximum
telephoto position.
Notice that the camera does not perform the digital zoom function.
6. Disable the automatic focus operation by clicking the Auto Focus check
box. Notice the Focus Far and Focus Near buttons are now operational.
7. The operation of the focus buttons is similar to that of the zoom buttons.
Experiment with the Focus Near and Focus Far buttons.
DSP Controller
1. Select Controller from the File menu. Then select DSP.
Figure 15 DSP Controller Menu
2. The DSP Controller window appears.
Figure 16 DSP Controller Window
3. Select Color Bar ON in the DSP Controller window. Notice the camera
image is now color bars.
You can use this function as an aid during troubleshooting.
4. Click the FA Deck tab in the Deck Controller window to switch the unit to
the player mode.
5. Use the Deck Controller window to play a tape.