Grass Valley LDK 7500 Technical Manual

LDK 7500 + LDK5490

Digital Cinematographic Camera

Technical Manual

Contents

About This Manual ................................................ ii

Viper

Safety Instructions ........................................... 1-1

Safety Summary ................................................ 1-2

Cautions and Warnings ...................................... 1-2

Installation ......................................................... 2-1

Packing/Unpacking ............................................ 2-2

Hardware Customization .................................... 2-2

Attaching an Adapter ......................................... 2-3

Detaching an Adapter ......................................... 2-3

Connectors ........................................................ 2-4

Cables and breakout box.................................... 2-8

Specifications .................................................. 2-10

Camera head dimensions ................................. 2-11

Adapter dimensions ......................................... 2-12

Replacements ................................................... 3-1

Introduction ........................................................ 3-2

Handgrip ............................................................ 3-2

Printed circuit boards ......................................... 3-3

Front unit ........................................................... 3-4

03.18.5 Technical Manual LDK 7500 + LDK 5490 Adapter i

Adjustments ..................................................... 4-1

Introduction ........................................................ 4-2

Test Equipment ................................................. 4-3

Set-up Instructions ............................................. 4-3

Video ADC Automatic Calibration ....................... 4-4

Pre-processor Calibration ................................... 4-4

3200K Adjustment ............................................. 4-4

Sawtooth Calibration .......................................... 4-4

Flare Adjustment ................................................ 4-5

Software Download ............................................ 4-5

Video Monitoring Adjustment ............................. 4-7

Exploded Views ............................................... 5-1

HD Camera head ................................................ 5-2

Camera head basic ............................................ 5-3

Left cover assembly........................................... 5-4

Right cover assembly ........................................ 5-5

Shoulder pad assembly ...................................... 5-6

Handgrip assembly ............................................ 5-7

About This Manual

Service policy

The LDK 7500 + LDK 5490 is a sophisticated camera containing state-of-the-art electronic components which are designed to provide long-life operation without the need for maintenance. With this in mind, the service policy of Thomson Broadcast Solutions endeavours to ensure that help will be quickly on hand in the unlikely event of anything going wrong. The guiding principles of the Thomson Broadcast Solutions first line maintenance philosophy are speed and cost effectiveness. First line maintenance is dedicated to keeping your camera operational, despite a fault, by module replacement and the replacement of minor mechanical parts by the user.

Purpose of this manual

The provision of correct information is the first step in ensuring the operational integrity of the camera. Information on the operation of the camera is to be found in the Operators’s Manual.

This technical manual is an integral part of the service policy. It ensures that you will be able to install and setup your camera to meet the requirements of your environment. This information on the installation of the camera is contained in Section 2 of the manual. The remaining sections of the manual provide first line service information so that suitably qualified service personnel can detect and repair faults, normally by module replacement.

Structure of this manual

The manual is divided into five different sections:

Section 1: Safety Instructions Outlines the safety precautions that must be taken when using the camera.

Section 2: Installation. Gives instructions on the integration of the camera into the operating environment and the customization of certain hardware functions

Section 3: Replacements. Gives information on the replacement of components at first line level.

Section 4: Adjustments. Contains the adjustment procedures to be followed to obtain the best performance.

Section 5: Exploded Views

Because of the complexity of some of the components, second line service can only be carried out at the specially equipped service centres and information concerning second line maintenance is not supplied in this manual.

Intended audience

The manual is intended as a guide to those with a working knowledge of camera systems and installation techniques. The first line detection and repair of faults requires a general knowledge of test and measurement techniques.

ii Technical Manual LDK 7500 + LDK 5490 Adapter 03.18.5

Identification and Status

To indicate the status of a drawing, a box with the numbers 0 to 9 is shown in the bottom-right of the drawing. The number that is crossed-out is the status number of the drawing. For example, in the illustration below, the status is 1.

0 1 2 3 4 5 6 7 8 9

A sticker is used on the units themselves to identify them and to indicate their status. For example, in the illustration below, the top line is the 12-digit number that identifies the unit type.

3922 406 88991 00121107 00 01

The first four digits of the number on the second line represent a date code (year, week); the next four digits represent the serial number for that week.

The number in the grey area indicates the status of the unit. The last two digits represent the number that will be given to the next status. However, if these two digits are contained in a box, then this is the current status. For example, in the illustration above, the current status of the unit is 01.

Line 3

This is the status of the PCB. The digit after the first slash is the status. If there is no number before the slash, it means that the status is less than 10, a 1 before the slash means the status is between 10 and 19, a 2 before the slash means between 20 and 29 etc. Example: VR4567891012 means status 4 VR3/78901234 means status 37.

Example of LDK number: LDK 4501/01 means 8926 450 10101 LDK 4500/00 means 8926 450 00001

Numbers of printed circuit board assembly

- 3922 406 xxxxx or 3922 407 xxxxx

Number (screened in PCB layout) of printed circuit board assembly: 3922 411xxxxx (not a spare part).

Line 1 3922 407 00000 Line 2 123456AA0101 Line 3 VR/0123456789

Line 1

This is the code number of the printed circuit board assembly (PCB).

Line 2

This is the serial number of the PCB. The first 6 digits and the 2 letters are for internal use. The last four digits reperesent the date of the manufacturing: wwyy. Example: 123456AA1402 means the PCB is manufactured in week 14 of the year 2002.

03.18.5 Technical Manual LDK 7500 + LDK 5490 Adapter iii

iv Technical Manual LDK 7500 + LDK 5490 Adapter 03.18.5

Section 1

Safety Instructions

This section outlines the precautions that must be taken into account when using the adapter.

Contents

Safety Summary ................................................ 1-2 Cautions and Warnings ...................................... 1-2

Safety Instructions Technical Manual LDK 7500 + LDK 5490 Adapter 1-1

Safety Summary

Cautions and Warnings

This informaton is intended as a guide for trained and qualified personnel who are aware of the dangers involved in handling potentially hazardous electrical/ electronic equipment. It is not intended to contain a complete list of all safety precautions which should be observed by personnel in using this or other electronic equipment.

The installation, maintenance and service of this equipment involves risks both to personnel and equipment and must be performed only by qualified personnel exercising due care.

Personnel engaged in the installation, operation, maintenance or servicing of this equipment are urged to become familiar with First Aid theory and practises.

During installation and operation of this equipment, local building safety and fire protection standards must be observed.

Before connecting the equipment to the power supply of the installation, the proper functioning of the protective earth lead of the installation needs to be verified.

Whenever it is likely that safe operation is impaired, the apparatus must be made inoperative and secured against any unintended operation. The appropriate servicing authority must then be informed. For example, safety is likely to be impaired if the apparatus fails to perform the intended function or shows visible damage.

When performing service, be sure to read and comply with the warning and caution notices appearing in the manuals. Warnings indicate danger that requires correct procedures or practices to prevent death or injury to personnel. Cautions indicate procedures or practices that should be followed to prevent damage or destruction to equipment or property.

WARNING

THE CURRENT AND VOLTAGES PRESENT IN THIS

EQUIPMENT ARE DANGEROUS. ALL PERSONNEL

MUST AT ALL TIMES FOLLOW THE SAFETY

REGULATIONS.

ALWAYS DISCONNECT POWER BEFORE REMOVING

COVERS OR PANELS.

ALWAYS DISCHARGE HIGH VOLTAGE POINTS

BEFORE SERVICING.

NEVER MAKE INTERNAL ADJUSTMENTS, PERFORM

MAINTENANCE OR SERVICE WHEN ALONE OR WHEN

FATIGUED.

IN CASE OF AN EMERGENCY ENSURE THAT THE

POWER IS DISCONNECTED.

ANY INTERRUPTION OF THE PROTECTION

CONDUCTOR INSIDE OR OUTSIDE THE APPARATUS,

OR DISCONNECTION OF THE PROTECTIVE EARTH

TERMINAL, IS LIKELY TO MAKE THE APPARATUS

DANGEROUS. INTENTIONAL INTERRUPTION IS

PROHIBITED.

USE ONLY FUSES OF THE TYPE AND RATING

SPECIFIED.

This product has been designed and tested according to EN60065.

CAUTION

To prevent risk of overheating, ventilate the

product correctly.

Connect the product only to a power source with

the specified voltage rating.

Do not allow system ground currents to exceed

1.5A in the outer shield of the triax cable or 0.2A in other cable shields.

1-2 Technical Manual LDK 7500 + LDK 5490 Adapter Safety Instructions

Symbol Colour Explanation

Red High voltage terminal at which

a voltage, with respect to an other terminal, exists or may be adjusted to 1000V or more.

Yellow/Black Live part.

Yellow/Black This marking indicates that the

operator must refer to an explanation in the Instruction Manual, or that a specific component must be replaced by the component specified in the documentation for safety reasons.

White/Black Protective earth (ground)

terminal.

Cathode ray tubes

Components marked on the circuit diagram are critical for safety and include those specified to comply with X-ray emission standards for units using cathode ray tubes and those specified for compliance with various regulations regarding spurious radiation emission.

When servicing units that use cathode ray tubes (CRTs), the cathode ray tubes themselves, the high voltage circuits and related circuits are specifically chosen so that they comply with recognized codes pertaining to X-ray emission.

Consequently, when servicing, replace the cathode ray tubes and other parts with specified parts only. Do not attempt to modify these circuits as any unauthorized modification can increase the high voltage value and cause X-ray emission from the cathode ray tube.

Handle the cathode ray tube only when wearing shatterproof goggles and after discharging the high voltage completely.

Safety Instructions Technical Manual LDK 7500 + LDK 5490 Adapter 1-3

1-4 Technical Manual LDK 7500 + LDK 5490 Adapter Safety Instructions

Section 2

Installation

This section provides information which is relevant when the camera is to be used for the first time. Packing and unpacking instructions together with information on the integration of the camera into your studio system are provided. The procedures for the customization of certain hardware functions and connector information is also provided.

Contents

Packing/Unpacking ............................................ 2-2

Hardware Customization .................................... 2-2

Attaching an Adapter ......................................... 2-3

Detaching an Adapter ......................................... 2-3

Connectors ........................................................ 2-4

Installation Technical Manual LDK 7500 + LDK 5490 Adapter 2-1

Cables and breakout box.................................... 2-8

Specifications .................................................. 2-10

Camera head dimensions ................................. 2-11

Adapter dimensions ......................................... 2-12

Packing/Unpacking

Hardware Customization

Inspect the shipping container for evidence of damage immediately after receipt. If the shipping container or cushioning material is damaged, it should be kept until the contents of the shipment have been checked for completeness and the units have been checked mechanically and electrically. The shipping container should be placed upright and opened from the top. Remove the cushioning material and lift out the contents. The contents of the shipment should be checked against the packing list. If the contents are incomplete, if there is mechanical damage or defect, or if the units do not perform correctly when unpacked, notify your Thomson Multimedia Broadcast Solutions sales or service centre within eight days. If the shipping container shows signs of damage or stress, notify the carrier as well. If a unit is being returned to Thomson Multimedia Broadcast Solutions for servicing, try to use the containers and materials of the original packaging. Attach a tag indicating the type of service required, return address, model number, full serial number and the return number which will be supplied by your Thomson Multimedia Broadcast Solutions service centre.

If the original packing can no longer be used, the following general instructions should be used for repacking with commercially available materials: a. Wrap unit in heavy paper or plastic. b. Use strong shipping container. c. Use a layer of shock-absorbing material around all

sides of the unit to provide firm cushioning and

prevent movement inside container. d. Seal shipping container securely. e. Mark shipping container FRAGILE to ensure careful

handling.

The camera head is delivered in a ready-to-use state, however, there are occasions when it might be necessary to re-adjust some functions after, for example, fitting a new lens. A large number of functions can be set-up using the control facilities of the menu system. In addition to this software set-up there are some functions which can be selected or adjusted internally in the camera. Refer to the next chapters for instructions.

Lens matching

When a camera is supplied with a lens it is not necessary to perform any of the following adjustments as the lens is already matched to the camera. However, if you wish to change to a different type of lens or the lens is not supplied with your camera, back focus, white shading and auto iris adjustment procedures may have to be performed.

• Colour balance. If required, perform the gain adjustment of the preprocessor board and/or white shading adjustment procedures, described in section 4.

• Auto Iris Adjustment If a different lens either works too slow or overshoots too much with the auto iris control, adjust the potentiometer on the lens to obtain acceptable operation. Refer to the lens documentation.

• Back Focus Adjustment To adjust the back focus of the lens refer to the documentation of the lens.

2-2 Technical Manual LDK 7500 + LDK 5490 Adapter Installation

Attaching an Adapter

Detaching an Adapter

The adapter can be used with various HD camera heads. To attach the adapter to the camera proceed as follow the steps in the order given:

Caution

Do not connect this HD adapter to an SD camera head

- connectors and guide pins are not compatible.

Caution

Be extremely careful. Do not allow the guide pins to damage the pins of the connector.

Caution

Tightening the screws in the wrong order could

result in mechanical damage to the camera.

a. Using the rail

(1) on the bottom of the camera head

as a guide, fit the guide pins (2) on either side of the connector and the guide pin (3) at the top rear of the camera head into the corresponding slots of the

adapter.

b. First, tighten the two horizontal screws (4) on the

top of camera.

c. Next, tighten the two horizontal screws (5) at the

front of the camera.

d. Lastly, tighten the vertical screw (6) in the handle

of the camera.

To detach the adapter from the camera head follow the steps for attaching it in the reverse order.

Caution

Loosening the screws in the wrong order could

result in mechanical damage to the camera.

Clea

r 4

r 6

ft fo

Installation Technical Manual LDK 7500 + LDK 5490 Adapter 2-3

Connectors

Viewfinder connector

Hirose 20-pole female; panel view

1. -80V (not used)

2. n.c.

3. GND

4. INTN-D

5. vf ext video (not used)

6. n.c.

7. vf video ret

8. SDA-D

9. SCL-D

10. vf ext video ret (not used)

11. GND

12. vf video

13. Pb vf ret

14. Pr vf ret

15. GND

16. +batt

17. +batt

18. Pb vf

19. Pr vf

20. shield

Cable 20-pin male connector:

Part number 5322 320 12159

RS232 connector

D-conn 9-pin male; panel view

1. SPARE

2. RS-RXD

3. RS-TXD

4. RS-DTR

5. RS-DGND

6. RS-DSR

7. RS-RTS

8. RS-CTS

9. +12V

2-4 Technical Manual LDK 7500 + LDK 5490 Adapter Installation

Audio microphone connector

XLR 3-pole female

Lens connector

6 4

1. Audio Screen

2. Audio In

3. Audio Return

Microphone impedance >200 ohm Sensitivity controlled via camera menu: -64 dBu to -22 dBu.

Signal at pin 2 of audio input is in phase with signal at pin 2 of audio output on Breakout box.

1. Ext. Video On/Off

2. VTR Trigger Switch

3. -batt

4. Momentary Iris

5. IrisControl

6. + batt

7. Iris Follow

8. Lens Servo

9. Range Extender

10. Zoom Follow

11. Focus follow*

12. Spare

* not standard on lens

Hirose 12-pole female; panel view

Cable 12-pin male connector:

Installation Technical Manual LDK 7500 + LDK 5490 Adapter 2-5

Part number 5322 265 41208

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