Thomson LDK 20(S) - Manuals

1-2 Technical Manual LDK 20(S) - Studio Camera Safety Instructions Safety Summary This informaton is intended as a guide for trained andqualified personnel who are aware of the dangers involvedin handling potentially hazardous electrical/electronicequipment. It is not intended to contain a complete ...

Safety Instructions Technical Manual LDK 20(S) - Studio Camera 1-3 Symbol Colour Explanation Red High voltage terminal at which avoltage, with respect to an othert e r m i n a l , e x i s t s o r m a y b eadjusted to 1000V or more. Yellow/Black Live part. Yellow/Black This marking indicates that the...

Installation Technical Manual LDK 20(S) - Studio Camera 2-1 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 intoyour studio system...

2-2 Technical Manual LDK 20(S) - Studio Camera Installation Packing/Unpacking Inspect the shipping container for evidence of damageimmediately after receipt. If the shipping container orcushioning material is damaged, it should be kept untilthe contents of the shipment have been checked forcompleten...

Installation Technical Manual LDK 20(S) - Studio Camera 2-3 The camera is delivered in a ready-to-use state,however, there are occasions when it might benecessary to re-adjust some functions after, forexample, fitting a new lens.A large number of functions can be set-up using thecontrol facilities o...

2-4 Technical Manual LDK 20(S) - Studio Camera Installation Lens matching When a camera is supplied with a lens it is notnecessary to perform any of the following adjustmentsas the lens is already matched to the camera. However,if you wish to change to a different type of lens or thelens is not supp...

Installation Technical Manual LDK 20(S) - Studio Camera 2-5 Analogue Ch1-Ch2 Two analogue channels (AN 0 and AN 1) are availablefrom the base station to the camera via the triax cableand can be used to transmit L.F. signals. For example,joystick control or pan and tilt. The input signals areapplied ...

2-6 Technical Manual LDK 20(S) - Studio Camera Installation Viewfinder Cadre Indication Cadre On/OffSwitch S6 on the Sync./shading board allows thecadre in the viewfinder to be switched on permanentlyor to be controlled by the menu system. Position ABselects (remote-) menu control (factory setting);...

Installation Technical Manual LDK 20(S) - Studio Camera 2-7 Audio / Intercom settings Audio microphone signalsThe high-pass filters in the audio channels reduce thebackground noise in the audio microphone signals.The high-pass filters can be set as follows:Audio 1 at MCP on/off (off=default setting)...

2-8 Technical Manual LDK 20(S) - Studio Camera Installation Private Data Private data channels can be used for the transmissionof serial data via the triax cable. For example, electronicscriptboard or character data for a video display unitcan be transmitted to the camera. The tracker microphone int...

Installation Technical Manual LDK 20(S) - Studio Camera 2-9 23 18 12 7 1 6 11 17 22 24 A B Connectors and Cables VTR connector Triax connector A. + Battery from VTR (10.7 to 17V)B. Ground1. CVBS (only available with encoder option present) 2. CVBS Return (only available with encoder option present)3...

2-10 Technical Manual LDK 20(S) - Studio Camera Installation 15-pin female; panel viewpart number 3922 406 Viewfinder connector 1. Video VF (Y + Sync)2. (R-Y) Video3. (B-Y) Video4. Power return5. Housing6. +12 Vdc7. SCL8. INTN9. Video VF return10. (R-Y)/(B-Y) return11. +12 Vdc12. Power return13. Hou...

Installation Technical Manual LDK 20(S) - Studio Camera 2-11 Tuchel 6-pin female; panel viewpart number 2422 026 02902 1. Microphone return2. Microphone3. Telephone return4. Telephone left5. Telephone right • Microphone level -58dBm/-20dBm switchable• Microphone impedance 200 ohm• Telephone level +6...

2-12 Technical Manual LDK 20(S) - Studio Camera Installation 1. +5VL2. 0VL3. AN04. AN15. Spare6. Not connected7. Private Data Camera - Base Station8. Ground9. Private Data Base Station - Camera10. Ground11. Shield Fischer 11-pin female; panel viewpart number 3922 040 02512 1. On-air signal return2. ...

Installation Technical Manual LDK 20(S) - Studio Camera 2-13 Panel Connector Type Part number Cable part number VTR 26-pin male 3922 040 02551 VTR cable LDL 2110/ * Triax 3-pin Fischer female 2432 020 00009 LDK 8200/ ** Triax 3-pin Trilock 3922 040 02682 -- Triax 3-pin ARD 3922 040 01492 -- Triax 3-...

2-14 Technical Manual LDK 20(S) - Studio Camera Installation Camera systemTransmission system NTSC/PAL Pick-up device 3 x 2/3-inch Thomson DPM Frame Transfer CCDs Smear performance No vertical smear Aspect ratio 4:3/ 16:9 switchable Picture elements 4:3 and 16:9 aspect ratioNTSC: 1000(h) x 498(v)PAL...

Replacements Technical Manual LDK 20(S) - Studio Camera 3-1 Section 3 Replacements This section gives information on the procedures to follow when replacing printed circuit boards andmechanical components at first line level. Contents Introduction .......................................................

3-2 Technical Manual LDK 20(S) - Studio Camera Replacements Introduction Printed circuit boards The instructions given in this section are restricted tothose modules which can be replaced at the first linelevel. After a printed circuit board has been replaced itis sometimes necessary to carry out ad...

Replacements Technical Manual LDK 20(S) - Studio Camera 3-3 To remove the front module proceed as follows:a. On the frontside of the camera remove the four screws 1 securing the front assembly. b. Remove the front assembly from the camera.c . Remove the Front Interconnection Board by unscrewing two ...

3-4 Technical Manual LDK 20(S) - Studio Camera Replacements To remove the filterwheel cassette proceed as follows: a. Loosen the two screws 1 securing the cover to the body of the front assembly. b. Loosen the two screws securing the cassette to the body of the front module. c . Use the grip to pull...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-1 Section 4 Adjustments This section contains the adjustment procedures to be followed to obtain the best performance fromthe camera. These procedures need only be used if, following a module replacement, the cameradoes not perform according t...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-3 Test Equipment The following is a list of equipment required to carry outthe adjustment procedure:• Set of board extenders LDK 4830/21 • Oscilloscope (with cursor measurement) • Spotlight 3200K • Gamma Test chart 4:3 / 16:9 • Waveform monito...

4-4 Technical Manual LDK 20(S) - Studio Camera Adjustments Extender Board 23 24 1 2 2 1 24 TOP SIDE MP 23 MP B A 1 3 5 7 9 11 13 15 17 19 21 23 4 6 8 10 12 14 16 18 20 22 24 2 S1 S3 S5 S7 S9 S11 S13 S15 S17 S19 S21 S23 S4 S6 S8 S10 S12 S14 S16 S18 S20 S22 S24 S2 B - CONNECTOR MP MP 1 2 3 4 5 6810121...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-5 Video Processor 1 Board Setting-up the Camera Note:Video Processor 1 must be adjusted in combination with the Sync./Shading board. 1. For local powering of the camera in the stand-alone mode (see User Guide, Section 4). 2. Recall Factory Sta...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-7 Video Processor 1 Board Black Offset6. In the Install/Gain menu set the gain for + to 12dB and for ++ to 30dB (the standard values are 6dB and 12dB).7. While switching between 0dB gain and 30dB gain, adjust black level during the active line...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-9 Video Processor 1 Board Test Sawtooth Nominal Settings15. Sawtooth amplitude Measure at: Adjust with: Required result: Correct: MP110 ZR111 -1000mV 0% 10 90 100 0.2V 10µS VA+1.00V 16. Sawtooth slope Set sawtooth amplitude to 100% on oscillos...

4-10 Technical Manual LDK 20(S) - Studio Camera Adjustments Digital Video Processor BOTTOM SIDE Digital Video Processing 3922 406 84950 2 1 24 23 X52 2 1 24 23 X51 ZR632AmplitudeBlack B ZR232AmplitudeBlack R ZR432AmplitudeBlack G ZR525 Black off set limiter sharp G ZR325 Black off set limiter sharp ...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-11 Digital Video Processor 1. Place Digital Video Processor on service extender. Set master black level to 50. Check that individual R, G and B black levels are set to 50. Switch off test sawtooth. Black Offset Level2. Switch on colour bar.3. ...

4-12 Technical Manual LDK 20(S) - Studio Camera Adjustments Digital Video Processor Subboard BOTTOM SIDE Subboard DSP 3922 406 84960 Z R 671 Z R 471 Z R 271 BOTTOM SIDE Digital Video Processing 3922 406 84950 2 1 24 23 X52 2 1 24 23 X51 ZR632AmplitudeBlack B ZR232AmplitudeBlack R ZR432AmplitudeBlack...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-13 Digital Video Processor Subboard Gain DAC.1. Adjust bar output amplitude. PAL Measure at: Adjust with: Required result: Correct: X51-21 ZR271 (R) +1400mV (R) 0% 10 90 100 0.2V 10µS VA+1.40V 1400 mV Measure at: Adjust with: Required result: ...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-15 Digital Video Processor Gain Video1. Place Digital Video Processor on service extender.2. Switch off colour bar and Test sawtooth on.3. Adjust white output amplitude. Measure at: Adjust with: Required result: Correct: X51-21 (R) ZR232 (R) +...

4-16 Technical Manual LDK 20(S) - Studio Camera Adjustments Video Miscellaneous Board Video Miscellaneous 3922 406 85070 TOP SIDE VideoMisc 1 2 36 1 2 36 ZR601 GainBM ux ZR600 Wh. Pulse BMux Ampl. ZR401 Gain GMux ZR400 White Pulse GMux Ampl. ZR93 R-Y Level ZR94 B-Y Level White Balance ZR91 Mon.Video...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-17 Video Miscellaneous Board 1. Place Video Miscellaneous Board on service extender. VF sync. oscillator2. Test sawtooth off.3. Adjust VF sync. frequency. Measure at: Adjust with: Required result: MP2 ZL4 +2.5V DC level Output amplitude4. Test...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-21 Video Miscellaneous Board White pulse amplitude17. Connect camera to a base station and switch to Triax mode.18. Adjust the white pulse in line 10 (PAL), in line 13 (NTSC) for the R-Mux output. Measure at: Adjust with: Required result: Corr...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-23 Video Miscellaneous Board Black indicator level25. Use the controls at the rear of the camera to set the white indicator level for the monitoring output by navigating through the menu system to menu number 318 and setting the value to 85. 2...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-25 Video Miscellaneous Board Zoom bar29. Mount lens on camera.30. Test sawtooth off and set filter to clear.31. Open iris for nominal video.32. Set potentiometers ZR90 and ZR283 to their mid-position.33. Set lens to the wide angle position and...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-27 Sync./Shading Board Setting-up Note: Sync./Shading board must be adjusted in combination with Video Processor 1 Board. 1. Put Sync./Shading Board on a service extender. 2. Put Video Processor 1 Board on a service extender and remove jumpers...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-29 Sync./Shading Board 8. On connector B of the service extender remove the short circuits on the input to Video Processor 1 Board by disconnecting the jumpers from B7 to B9, B11 to B13 and B17 to B19,Reconnect A6 to B6A7 to B7A9 to B9A11 to B...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-31 Sync./Shading Board Edge clip level16. Set edge clip level potentiometers in their mid-position. Measure at: Adjust with: Required result: VF out R ZR237 Mid-position VF out G ZR437 Mid-position VF out B ZR637 Mid-position Edge gain correct...

4-36 Technical Manual LDK 20(S) - Studio Camera Adjustments Encoder Board PAL Encoder Board PAL 3922 406 82760 TOP SIDE CVBS Encoder Chroma 1 2 36 1 2 36 L8 MP14 Chroma MP7 MP12 MP8 MP13 MP6 MP17 MP0 MP18 MP2 MP5 MP4 MP3 MP16 MP20 MP21 MP19 MP11 MP9 MP10 MP26 MP25 MP24 MP22 R4 R14 CVBS ZR203Q Balanc...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-39 Encoder Board PAL B-Y amplitude11. On the encoder board disconnect MP7 from ground and connect MP8 to ground.12. Adjust with the B-Y gain potentiometer until the colour vector dots correspond with the indication marks on the U-axis of the g...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-41 Encoder Board PAL Burst amplitude19. Adjust the burst amplitude potentiometer to obtain a burst amplitude of 300mV. Measure at: Adjust with: Required result: Correct: CVBS out ZR210 300mV 0% 10 90 100 0.1V 2µS VA+300mV Burst timing20. Obser...

4-42 Technical Manual LDK 20(S) - Studio Camera Adjustments Encoder Board NTSC Enc oder Board NTSC 3922 406 82770 TOP SIDE CVBS Encoder Chrom a 1 2 36 X 11A 1 2 36 X 11B L8 MP14 Chrom a MP7 MP12 MP8 MP13 MP6 MP17 MP0 MP18 MP2 MP5 MP4 MP3 MP16 MP20 MP21 MP19 MP11 MP9 MP10 MP26 MP25 MP24 MP22 R4 R14 C...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-43 Encoder Board NTSC Set-up1. Switch off power. Place encoder board on service extender. Genlock camera with black burst signal. Switch on power. 2. Connect oscilloscope via a vectorscope terminated with 75Ohm to the CVBS output of the camera...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-49 Encoder Board NTSC Burst timing23. Observe waveform monitor or oscilloscope and adjust the burst position so that it is 5.3µS from the leading edge of the line synchronisation. Measure at: Adjust with: Required result: Correct: CVBS out ZR2...

4-50 Technical Manual LDK 20(S) - Studio Camera Adjustments Audio/Intercom LF Board Audio/Intercom LF Board 3922 406 85940 Audio Int LF TOP SIDE 1 2 36 1 2 36 E D C B A B A C S200 S300 E D C B A S100 ZR260Audio 2 LimiterLevel ZR160 Audio 1Limiter Level ZMP0 ZMP200 ZMP100 ZMP340 ZR210 Audio 2Preset L...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-51 Audio/Intercom LF Board Set-up1. Set up camera in triax mode. Switch off power. Place audio/intercom LF board on service extender. Switch on power. Audio 1 level2. Select an audio 1 level of -64dBu.3. Apply a 1kHz test signal at -64dBu symm...

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-55 Audio/Intercom LF Board RTS MODE Cameraman intercom microphone PL1. Apply a 1kHz test signal at -64dBu to the cam. intercom mic. input of Audio/Intercom LF Board (X19A-25).2. Adjust the cam. mic. preset potentiometer for a 1kHz signal at -1...

4-56 Technical Manual LDK 20(S) - Studio Camera Adjustments Pre Processor Board Pre Processor Board 3922 406 83830 TOP SIDE Z R 3 2 2 G a in G ZR122 Gain R ZR522 Gain B Z R 5 6 0 Z R 5 4 0 Z R 1 6 0 Z R 1 4 0 Z R 3 6 0 Z R 3 4 0 MP100 MP300 MP500 M P 0 ZS100 ZS700 ZS500

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-57 Pre-Processor Board Gain Adjustment 1. Recall Factory Standard File on MCP or OCP. On MCP set: OPERATE MENU Knee : Off Auto Iris : Off Matrix sel. : 1:1 SETUP 1 MENU Wh. Limiter : Off Gamma : Lin. SETUP 4 MENU Asp. ratio : 4:3 2. Set the li...

Drawings Technical Manual LDK 20(S) - Studio Camera 5-1 Section 5 Drawings This section contains block diagrams of the camera. The block diagrams are a useful help for tracingsignals when fault finding. Contents Block Diagram Power Signals ............................ 5-2Block Diagram Video Signals ...

5-2 Technical Manual LDK 20(S) - Studio Camera Drawings Block Diagram Power Signals 2/3" Front Camera Switch Panel Power Video Proc. 1 X23-16X23-36X23-38 X937-B16X937-B14X937-Z22 +18V-12Va+V peltier +18V -12Va +V peltier +13V +13V RET +5V GND -5V +3.3V +5V data+13V+13V RET +12V+5V+3.3VP GND-5V-1...

Drawings Technical Manual LDK 20(S) - Studio Camera 5-3 Block Diagram Video Signals 7 0 0 m V 3 0 0 m V X 5 5 -1 3 X 5 5 -1 1 X 5 5 -9 X 5 5 -7 X 5 5 -1 9 X 5 5 -1 7 V id e o P ro c e s s o r 1 1 3 0 m V R p p R e t. G p p R e t. B p p R e t. 2 1 5 m V 5 5 m V * B la c k S h a d in g * V -C la m p *...

5-4 Technical Manual LDK 20(S) - Studio Camera Drawings Block Diagram Transmission Signals CAMERACONTROLUNIT Volume Prod Front Ref Prod X27-4 X27-6 AUDIOINTERCOM TX/REC AUDIO INTERCOM LF Audio 1 TXretAudio 2 TXret Cam Mic TXretTracker Mic TXret ProgretProdretENGret X18A-21X18A-22X18A-17X18A-18 X18B-...

Drawings Technical Manual LDK 20(S) - Studio Camera 5-5 Block Diagram Control Signals 2/3"FRONT CAMERASWITCHPANEL INTERCONN.BOARD VIDEO PROCES-SOR 1 X140-27X140-28 D-SDAD-SCL C-SDA C-SCL C-INT N A -S D A B -S D A C -S D A E -S D A F -S D A H -S D A A -S C L B -S C L C -S C L E -S C L F -S C L H ...