Technicolor - Thomson LDK 20(S) technical manual Section Replacements, Contents

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Section 3

Replacements

This section gives information on the procedures to follow when replacing printed circuit boards and mechanical components at first line level.

Contents

Introduction	3-2	Filterwheel Cassette	3-4
Printed circuit boards	3-2	Power supply	3-4
Front module	3-3

Replacements

Technical Manual LDK 20(S) - Studio Camera

3-1

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Contents Technical Manual Declaration of Conformity LDK 20S Studio Camera Technical Manual Contents Intended audience Service policyAbout This Manual Purpose of this manualSection Safety Instructions According to IEC65 Safety SummaryCathode ray tubes EarthingTechnical Manual LDK 20S Studio Camera Safety Instructions Section Installation Packing/Unpacking Local / Remote Power SupplyLocation of adjustments Hardware Setup and CustomizationTest Sawtooth Lens matching Internal signalsExternal signal Analogue Ch1-Ch2 Dipswitch SettingsExternal Aspect Ratio Switch Cadre appearance Viewfinder Cadre IndicationCadre On/Off Intercom microphone signals Audio / Intercom settingsAudio microphone signals Intercom headset signalsPrivate Data Triax connector Connectors and CablesVTR connector Pin female panel view part number 3922 Viewfinder connectorAudio microphone connectors Camera headset connectorData connector Auxiliary connectorTracker communication connector Cable connector part numbers Script light connectorCamera system Specifications LDK20Section Replacements Printed circuit boards IntroductionFront module Filterwheel Cassette Power supply Section Adjustments Adjustments Set-up Instructions Test EquipmentExtender Board Video Processor 1 Board Setting-up the CameraSync./Shading Board Vertical sawtooth offset Black OffsetAmpl G ZR111ZR206 Ampl RVideo output Test Sawtooth Nominal Settings 15. Sawtooth amplitudeDigital Video Processor Black Offset Level Digital Video Processor Subboard Ntsc Gain DACZR525 X51 ZR541 Black off set Limiter sharp G MP500 ZR830 VF-Mon output Output amplitude readjustmentGain Video White limiterAmpl Level Video Miscellaneous BoardZR85 ZR92 SyncB-Y white balance VF sync. oscillatorOutput amplitude ZR85 ZR92 White Pulse Video Mux output AmplitudeVideo Miscellaneous Board Monitoring camera output White pulse amplitudeB/Y/VFCNT Black indicator level Viewfinder IndicatorIndicator ZR90 Start End StopFocus bar Zoom barX55 DummyBlack Shading Correction Setting-upZR666 ZR265MP409 ZR465 ZR466 Pulse compensation Dummy offset adjustmentDC level adjustment at 45oC ZR637 ZR237ZR238 ZR239Hor. sawtooth correction 1/1000 Exp Edge clip levelEdge gain correction Hor. sawtooth correction Nom. ExpOffset R Saw BlackZR208 ZR214ZR211White shading exposure Sync/Shading BoardVideo Miscellaneous Board Auto iris Balance R14 Encoder Board PALZR203 Chroma BalanceCvbs amplitude Set-upBlack balance ZR211 Burst PhaseZR202 GainBurst phase B-Y phaseBurst Osc. PresetZR217 Sc-H Phase ZR209Burst timing Genlock free-running presetSc-H phase relationship Burst amplitudeEncoder Board Ntsc White bar amplitude MP8 ZR205Smpte bar shift MP7 90 phase ZR215 ZR201Amplitude ZR207Bar amplitude Adjust the I and Q bars for an amplitude of 286mV 40 IREZMP0 Audio/Intercom LF BoardAudio 2 limiter Audio 1 levelAudio 1 limiter Audio 2 levelAudio/Intercom LF Board Cameraman intercom microphone TRS Cameraman intercom microphoneCameraman intercom microphone PL Limiter level camera microphoneAudio/Intercom LF Board CH2 fork attenuation ENG Audio/Intercom LF Board RTS ModeCH1 fork attenuation Prod Pre Processor Board Pre-Processor Board Gain AdjustmentTechnical Manual LDK 20S Studio Camera Section Drawings Block Diagram Power Signals 104 RZ 610 RZ Block Diagram Video SignalsPanel Block Diagram Transmission SignalsData Board Block Diagram Control SignalsTechnical Manual LDK 20S Studio Camera