Technicolor - Thomson LDK 20(S) About This Manual, Service policy, Purpose of this manual

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About This Manual

Service policy

The LDK 20(S) 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 Multimedia Broadcast Solutions endeavours to ensure that help will be quickly on hand in the unlikely event of anything going wrong. The guidingprinciplesoftheThomsonMultimediaBroadcast 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 User’s Guide.

This installation and first line maintenance manual is an integral part of the service policy. It ensures that you will be able to install and set-up your camera to meet the requirements of your environment. This informationontheinstallationofthecameraiscontained 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.

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.

Structure of this manual

The manual is divided into five sections:

Section 1: Safety Information.

Contains important safety information and should be read before carrying out any work on 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 from the camera.

Section 5: Drawings.

Contains block diagrams of the camera.

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Technical Manual LDK 20(S) - Studio Camera

02.34.5

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Contents Technical Manual Declaration of Conformity LDK 20S Studio Camera Technical Manual Contents Service policy About This ManualPurpose of this manual Intended audienceSection Safety Instructions Safety Summary According to IEC65Earthing Cathode ray tubesTechnical Manual LDK 20S Studio Camera Safety Instructions Section Installation Local / Remote Power Supply Packing/UnpackingHardware Setup and Customization Location of adjustmentsExternal signal Internal signalsTest Sawtooth Lens matching External Aspect Ratio Switch Dipswitch SettingsAnalogue Ch1-Ch2 Cadre On/Off Viewfinder Cadre IndicationCadre appearance Audio / Intercom settings Audio microphone signalsIntercom headset signals Intercom microphone signalsPrivate Data VTR connector Connectors and CablesTriax connector Viewfinder connector Pin female panel view part number 3922Camera headset connector Audio microphone connectorsTracker communication connector Auxiliary connectorData connector Script light connector Cable connector part numbersSpecifications LDK20 Camera systemSection Replacements Introduction Printed circuit boardsFront module Filterwheel Cassette Power supply Section Adjustments Adjustments Test Equipment Set-up InstructionsExtender Board Setting-up the Camera Video Processor 1 BoardSync./Shading Board Black Offset Vertical sawtooth offsetZR111 ZR206Ampl R Ampl GTest Sawtooth Nominal Settings 15. Sawtooth amplitude Video outputDigital Video Processor Black Offset Level Digital Video Processor Subboard Gain DAC NtscZR525 X51 ZR541 Black off set Limiter sharp G MP500 ZR830 Output amplitude readjustment Gain VideoWhite limiter VF-Mon outputVideo Miscellaneous Board ZR85 ZR92Sync Ampl LevelOutput amplitude VF sync. oscillatorB-Y white balance ZR85 ZR92 White Pulse Amplitude Video Mux outputVideo Miscellaneous Board White pulse amplitude Monitoring camera outputB/Y/VFCNT Black indicator level Indicator Indicator ZR90 StartEnd Stop ViewfinderZoom bar Focus barDummy X55Setting-up Black Shading CorrectionMP409 ZR465 ZR466 ZR265ZR666 DC level adjustment at 45oC Dummy offset adjustmentPulse compensation ZR237 ZR238ZR239 ZR637Edge clip level Edge gain correctionHor. sawtooth correction Nom. Exp Hor. sawtooth correction 1/1000 ExpSaw Black ZR208ZR214ZR211 Offset RSync/Shading Board White shading exposureVideo Miscellaneous Board Auto iris Encoder Board PAL ZR203 ChromaBalance Balance R14Black balance Set-upCvbs amplitude Burst Phase ZR202Gain ZR211B-Y phase Burst phaseOsc. Preset ZR217 Sc-H PhaseZR209 BurstGenlock free-running preset Sc-H phase relationshipBurst amplitude Burst timingEncoder Board Ntsc White bar amplitude ZR205 MP8Smpte bar shift MP7 90 phase ZR201 AmplitudeZR207 ZR215Adjust the I and Q bars for an amplitude of 286mV 40 IRE Bar amplitudeAudio/Intercom LF Board ZMP0Audio 1 level Audio 1 limiterAudio 2 level Audio 2 limiterAudio/Intercom LF Board Cameraman intercom microphone Cameraman intercom microphone PLLimiter level camera microphone Cameraman intercom microphone TRSAudio/Intercom LF Board CH1 fork attenuation Prod Audio/Intercom LF Board RTS ModeCH2 fork attenuation ENG Pre Processor Board Gain Adjustment Pre-Processor BoardTechnical Manual LDK 20S Studio Camera Section Drawings Block Diagram Power Signals Block Diagram Video Signals 104 RZ 610 RZBlock Diagram Transmission Signals PanelBlock Diagram Control Signals Data BoardTechnical Manual LDK 20S Studio Camera