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5-2

Section 5 Ñ Diagnostics and Troubleshooting

Overview

WARNING

To avoid electrical shock hazard, do not open covers or access
doors. Dangerous voltages are present even with the AC power
switch in the OFF position. All servicing should be performed by
qualified service personnel, only.

CAUTION

Do not operate the Model 1200 system with the Signal Processing Frame doors or
covers open or removed for an extended period, as overheating may occur.

In order to avoid loss of data, be sure to read the Service Precautions and
Removing Circuit Modules precautions at the beginning of the Maintenance
section of this manual before performing any maintenance procedure on this
system.

Multi-layer printed circuit manufacturing techniques have been used in the
manufacture of many of these circuit modules. Specialized equipment and training
are required to properly repair them. Attempting to repair circuit modules rather
than replacing them, as recommended, can result in potentially expensive damage
that is not covered under warranty.

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Summary of Contents for 1200

Page 1: ...Installation and Service TP0715 01 FIRST PRINTNG MARCH 1997 MODEL 1200 DIGITAL PRODUCTION SWITCHER 3 0 software release ...

Page 2: ...mation in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX TEK Grass Valley Group Borderline E MEM TEN X Wavelink and are registered trademarks and Air Link Auto Match Doubletake E Disk Eagle V Emphasys EZ Link 409 Horizon Jogger Kadenza Kaleidoscope K Mask Key Layer Key Link MASTER System Master 21 MAX Omni Key Per...

Page 3: ... Section 1 Ñ System Overview Introduction 1 1 Section Contents 1 1 Model 1200 Physical Description 1 2 Model 1200 Features and Options 1 3 Inputs 1 3 Effects System 1 3 Keyers 1 4 Interfacing 1 4 E MEM Effects Memory System 1 5 Outputs 1 5 Miscellaneous 1 5 Model 1200 Functional Overview 1 6 Model 1200 System Specifications 1 8 Section 2 Ñ Installation Introduction 2 1 Unpacking 2 2 Information Re...

Page 4: ...al Port Jumper Settings 2 14 GPI J27 and Tally J28 2 14 AC Power Connection and System Powerup 2 16 Restart 2 18 LampSaver Panel Sleep Mode 2 18 System Setup 2 19 Menu Pushbuttons and Knobs 2 19 Configuration Menu 2 20 System Parameters Menu 2 21 Define Inputs Menu 2 22 Define Inputs 2 22 Chroma Key Sources Menu 2 23 Crosspoint Display Legends Menu 2 24 Crosspoint Map Menu 2 25 Outputs Menu 2 26 T...

Page 5: ...Pulse Generator Circuit 3 14 Clock Pulse Generator 3 14 Input Modules 3 15 Serial Input Module 3 15 Parallel Input Module 3 15 Crosspoint Module 3 16 Autotiming and Chrominance Luminance Split 3 16 Crosspoint Matrix 3 17 Chroma Keyer Submodule 3 18 Keyer Module 3 21 Effects Send Crosspoints 3 21 Wipe Pattern Generator 3 22 Effects Send Output 3 22 Key Processor Submodule 3 23 Preset Pattern Keys 3...

Page 6: ...an Filters 4 5 Fuse Replacement 4 5 Pushbutton Lamp Replacement 4 6 Using the Module Extender 4 7 Circuit Module Replacement 4 8 Repairing Circuit Modules 4 8 Static Charges 4 8 Control Panel Modules 4 9 Lever Arm Adjustment 4 11 Software Installation or Upgrade 4 13 Saving E MEM Data to Diskette 4 13 Loading Software From Diskette 4 14 System Power Down Procedure 4 16 System Restart after Power S...

Page 7: ...lling the Signal Processor Frame in a Standard 19 inch Rack 2 6 Figure 2 4 Proper Routing of Cables to the Frame 2 7 Figure 2 5 Model 1200 Frame Backplane 2 8 Figure 2 6 Rear of Control Panel 2 10 Figure 2 7 Serial Port Jumpers on the Control Processor Module 2 14 Figure 2 8 Model 1200 Connector Pinouts 2 15 Figure 2 9 AC LINE IN Connector J39 2 16 Figure 2 10 Control Panel Power Switch 2 17 Figur...

Page 8: ...d Depth Output Processing 3 29 Figure 3 16 Transition Generators 3 31 Figure 3 17 Key Depth 3 33 Figure 3 18 DAC Support Board Block Diagram 3 35 Figure 3 19 DAC Board Block Diagram 3 36 Figure 3 20 Output Modules 3 37 Figure 3 21 Panel Overview 3 39 Figure 3 22 Panel Keyboard Scanning 3 40 Figure 4 1 Control Panel Lamp Replacement 4 5 Figure 4 2 Using the Module Extender 4 6 Figure 4 3 Control Pa...

Page 9: ...est Menu 5 19 Figure 5 14 Loopback Connector 5 19 Figure 5 15 Exiting the Diagnostic Menu 5 20 List of Tables Table 1 1 Model 1200 System Specifications 1 8 Table 2 1 Analog Output Option Jumper Settings 2 39 Table 3 1 Power Supply Module 3 10 Table 3 2 Panel Voltages and Current 3 38 ...

Page 10: ...x Contents ...

Page 11: ...r than that contained in the operating instructions unless you are qualified to do so Symbols and Their Meanings The lightning flash with arrowhead symbol within an equilateral triangle alerts the user to the presence of Òdangerous voltageÓ within the productÕs enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilatera...

Page 12: ...connecting the product inputs or outputs Route power cords and other cables so that they are not likely to be damaged Disconnect power before cleaning Do not use liquid or aerosol cleaners use only a damp cloth Dangerous voltages exist at several points in this product To avoid personal injury refer all servicing to qualified personnel Do not wear hand jewelry or watches when troubleshooting high ...

Page 13: ...is part of fire enclosure and should be kept closed during normal operation To prevent damage to this equipment read the instructions in this document for proper input voltage range selection Circuit boards in this product are densely populated with surface mount and ASIC components Special tools and techniques are required to safely and effectively troubleshoot and repair modules that use SMT or ...

Page 14: ...ment is supplied with a molded grounding connector IEC 320 C13 at one end and stripped leads 50 5 mm at the other end Conductors are CEE color coded light blue neutral brown line and green yellow ground Other IEC 320 C 13 type power supply cords can be used if they comply with the safety regulations of the country in which they are installed White Green or Green with Yellow stripe Black Line Neutr...

Page 15: ...ing two conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesirable operations 5389 336 EEC EMC Directive EN500081 1 EN55022 WARNING This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures ...

Page 16: ...xvi Safeguards and Notices ...

Page 17: ...ompletely Then return to the beginning of the section and follow the instructions step by step to set up the switcher in your studio Skim Section 3ÐFunctional Description to gain a deeper understanding of the overall design of the system Read Section 4ÐMaintenance to become familiar with routine maintenance requirements and the diagnostic tools available to you Section Contents This section of the...

Page 18: ...Figure 1 1 Main Assemblies of the Model 1200 Digital Production Switcher 1 0 064911 Control Processor Module 064905 Crosspoint Module 064907 Keyer Module 064910 Program Mixer Module 064910 Preview Mixer Option Module Power Supply 064914 SPG Submodule 064925 Chroma Keyer Submodule 064908 Key 1 Processor 064908 Key 2 Processor 064908 DSK Processor 064909 Borderline 064909 Borderline 064909 Borderlin...

Page 19: ...enu system Inputs can be set for 8 or 10 bits shaped or unshaped video key key with depth or the video input can be assigned to a key Processing amplifier can be adjusted and remembered for each crosspoint column Effects System Ten bit component digital format for unparalleled signal quality and virtually unlimited effects layering Ten Crosspoint Switching Buses Program Background Preset Backgroun...

Page 20: ...ing switcher luminance linear keys chroma keys and preset patterns over switcher backgrounds using an external DPM Effects Send Aux Output option required Z Keyª Depth option submodule mounts on Program or Preview Mixer Board and allows keying from Graphics Factory or Kaleidoscope depth inputs Depth is adjustable Optional Borderline Key Edger submodule mounts on each keyer submodule and adds borde...

Page 21: ...tional Analog Output submodules for the Program and Preview Mixers deliver PGM and PVW component analog outputs to existing frame BNC connectors Outputs can be set by the user for YUV RGB or Y R Y B Y format PGM output delay relative to reference input is 63 µs nominal Miscellaneous A keyboard is required to assign Signal and Crosspoint names and to access the menu diagnostics Use either a keyboar...

Page 22: ... keyers are routed via the aux bus outputs to a DPM Figure 1 2 Model 1200 Simplified Functional Block Diagram KEYER CARRIER AND EFFECTS SEND MODULE MIX EFFECTS KEYER 1 DOWNSTREAM KEYER K K K K K K CROSSPOINT MODULE V PROGRAM BACKGROUND PRESET BACKGROUND V V V V EFFECTS SEND AND AUX BUS SIGNAL ROUTING AUX 1 AUX 2 K K K V V V V BORDERLINE KEY EDGE GENERATOR OPTION BORDERLINE KEY EDGE GENERATOR OPTIO...

Page 23: ...l component digital and parallel component digital outputs LOOK AHEAD PREVIEW MIXER OPTION DIGITAL TO ANALOG CONVERTER OPTION SEND VIDEO OR AUX 1 OUT SEND KEY OR AUX 2 OUT VIDEO PGM 1 KEY PGM 1 CLEAN FEED VIDEO PREVIEW VIDEO VIDEO PGM 2 KEY PGM 2 ANALOG PREVIEW VIDEO YUV RGB OR Y R Y B Y ANALOG PROGRAM VIDEO YUV RGB OR Y R Y B Y K K K V V V PGM PST Z KEY DEPTH PROCESSOR OPTION PROGRAM MIXER EFFECT...

Page 24: ...ange 0 40 C 32 104 F Ambient Temperature for Specifications 20 30 C 68 86 F Relative Humidity 95 Maximum Non Condensing Frame Mechanical SpeciÞcations Depth 24 8 inches 630 mm Width Std 19 inches 483 mm Height 10 25 inches 260 mm Rack Units 6 Weight 80 lbs 36 3 kg Control Panel Mechanical SpeciÞcations Depth 17 42 inches 443 mm Width 29 00 inches 260 mm Height 10 66 inches 260 mm Weight 48 lbs 21 ...

Page 25: ...Inputs Per Module 2 Connector 25 Pin Female D Type with Screw Locks Input Impedance 110 ohms 10 terminating Autotiming Range 24 µS Maximum Cable Length Without External Equalization 15 Meters 50 feet Number Of Bits 10 or 8 Selectable Auxiliary Data Auxiliary data is blanked Serial Digital Input Characteristics Inputs Per Module 2 two 75 ohm BNC Return Loss 15 dB 5MHz to 270 MHz Autotiming Range 24...

Page 26: ...r 10 ns Number Of Outputs 3 Number Of Outputs 1 PGM 1 PVW both optional Parallel Digital Output Characteristics Number Of Outputs Per Module 2 Connector 25 Pin Female D Type with Screw Locks Output Impedance 110 ohms 10 Output Amplitude 800 mV pp terminated DC Level On Output 50 mV Number Of Bits 8 or 10 bits Selectable Maximum Cable Length 15 meters 50 feet Auxiliary Data Auxiliary data is blanke...

Page 27: ...ts 10 bits Aux Data Auxiliary data is blanked Video System Characteristics Analog Out Frequency Response 4 x 3 Aspect 0 2 dB to 5 5 MHz 60 dB above 8 0 MHz 16 x 9 Aspect 0 2 dB to 7 MHz 60 dB above 10 5 MHz Group Delay Error 6 ns to 5 MHz Field Rate Tilt 0 25 K Factor 2t Pulse 0 25 K Factor Bar 0 25 K Factor Pulse to Bar 0 25 Signal P P Noise Ratio 60 dB unweighted 5 MHz bandwidth Line Time Non Li...

Page 28: ...66 microseconds 625 line Number Of Quantization Bits 10 minimum Mix Tracking Error 1 LSB Linearity During Mix Linearity Is Not Affected By Mix Frequency Response During Mix Response Is Not Affected By Mix Path Length 63 microseconds nominal Rounding Method Digital Only Adaptive Bit Reduction Patent Pending Table 1 1 Model 1200 System SpeciÞcations continued Parameter Value ...

Page 29: ...ssed UnpackingÑpage 2Ð2 Information Required Before InstallationÑpage 2Ð2 Control Panel InstallationÑpage 2Ð4 Signal Processor Frame InstallationÑpage 2Ð6 Cable RoutingÑpage 2Ð7 Cabling ConnectionsÑpage 2Ð8 AC Power Connection and System PowerupÑpage 2Ð16 System SetupÑpage 2Ð19 Option InstallationÑpage 2Ð34 Analog Output Option InstallationÑpage 2Ð36 ...

Page 30: ...eyboard EA2452 The keyboard requires an adaptor CA4216 which is included with the Model 1200 Assorted Screwdrivers Flat blade Phillips and T10 TORX optional Nutdriver and assorted sockets Drill and 5 32Ó or 4 mm bit for drilling holes to mount the panel Ten 6 screws nuts and washers for securing the panel to the desk Four 6 32 machine screws nuts and washers for securing the rear mounting brackets...

Page 31: ...prevent injury or equipment damage please read and follow the safety precautions listed below WARNING The fully configured Model 1200 Signal Processor Frame weighs about 80 lbs 36 kg Use appropriate equipment to support it during installation WARNING To help protect users against electric shock ensure that the Signal Processor Frame power supply is connected to earth ground via the ground wire pro...

Page 32: ...ave room behind the panel for making cable connections and above the panel for opening the lid Figure 2 1 Control Panel Dimensions 10 66 in 271 mm 0 83 in 21 mm 16 57 in 421 mm 17 42 in 443 mm Side View Front View 27 71 in 704 mm 29 00 in 737 mm Tub Lower Panel Surface Splash Panel Display 23 28 in 591 mm Note Leave 6 inches 152 mm of space behind the panel for cable connections 2 23 in 57 mm 17 3...

Page 33: ... Important Install the mounting brackets on the rear of the panel using four 6 32 screws Secure the brackets to the desk using four 6 wood screws The mounting flange at the front is not capable of supporting the entire panel Panel mounting flange Side View 6 05 in 154 mm 1 02 in 26 mm 18 42 in 468 mm 19 58 in 497 mm 20 22 in 514 mm 1 00 in 25 mm 15 40 in 391 mm 5 31 in 135 mm Flush Mount ...

Page 34: ...so leave open space at the sides for cooling air flow WARNING The frame is heavy about 80 lbs 36 kg To prevent injury use a mechanical lifting device to lift the frame into position Also secure the equipment rack to the floor to prevent it from toppling when the frame is installed 24 8 in 630 mm 6 RACK UNITS 10 5 in 267 mm 19 00 in 483 mm 17 25 in 438 mm TP0626 06 Standard 19 Rack COOL AIR INTAKE ...

Page 35: ...UT 13 J13 INPUT 14 J14 INPUT 15 J15 INPUT 16 J16 AUX OUT 1 J17 AUX OUT 2 J18 PGM OUT 1 J19 PGM KEY OUT 1 J20 CLEAN FEED J21 PVW OUT J22 PGM OUT 2 J23 PARALLEL INPUT MODULE O U T P U T S I N P U T S SERIAL INPUT MODULE SERIAL OUTPUT MODULE GPI TTY TALLY CONTROL PANEL MODEM DPM EDITOR J28 J27 J29 J25 J26 PGM PVW J33 J36 J34 J37 J35 J38 U U V V J31 J30 J32 J39 Y ANALOG OUTPUTS Y GRASS VALLEY GROUP MO...

Page 36: ...15 AUX OUT 1 J17 AUX OUT 2 J18 PGM OUT 1 J19 CLEAN FEED J21 PVW OUT J22 PGM OUT 2 J23 PARALLEL INPUT MODULE O U T P U T S I N P U T S SERIAL IN SERIAL OUTPUT MODULE PARALLEL INPUT MODULE PARALLEL IN PARALLEL IN PARALLEL IN PARALLEL INPUT MODULE PARALLEL INPUT MODULE PARALLEL OUT PARALLEL OUTPUT MODULE SERIAL OUT Serial and Parallel Component Digital Inputs 1 16 CCIR601 4 2 2 525 or 625 lines Aux B...

Page 37: ...CURRENT 4A FREQUENCY 50 60HZ 5A FUSE SPARE EXT REF INPUT LOOPING Program Luminance Key Component Digital Outputs Program and Preview Analog Component Video Outputs Betacam SMPTE or EBU N10 AC Power Input 100 240 Vac 50 60 Hz 99 Power Factor Correction 400 Watts Maximum External Reference Analog Color Black NTSC or PAL Video Input Panel to Frame Connection Terminal and Tally Connector Provides one ...

Page 38: ... frame connector J29 If installing a DPM 100 700 also donÕt mix up the control cables because equipment damage can result Figure 2 6 Rear of Control Panel TP0715 05 EXT REF IN J1 J2 J5 J6 J7 SERIAL COMM TO VIDEO ELECTRONICS FRAME Keyboard Connection J5 Frame to Control Panel Connection J1 Video Reference Signal Connection Loop through Pair typically Color Black J3 J4 ...

Page 39: ...erence and the input timing window of the video inputs can be adjusted together in the menus This allows switcher output timing to vary as needed to match other equipment in your system Digital Video and Key Inputs J1ÐJ16 Digital video key inputs J1ÐJ16 conform to CCIR 601 4 2 2 component digital video standards and may be either serial or parallel depending on which input options have been ordere...

Page 40: ...t Program Key Output The Program Key Output is a luminance key signal derived from the Program video output There may be up to two identical Program Key outputs PGM KEY OUT 1 J20 parallel digital and PGM KEY OUT 2 J24 serial digital Preview PVW Output The Preview Output which is available only if the Preview Mixer and a Preview Output option are installed shows what the switcher output will look l...

Page 41: ... 9600 baud 8 bits 1 stop bit no parity Editor Connection An editor typically connects to J32 but can be connected to any port except J28 For a Grass Valley editor use a standard serial cable and set the port for RS 422 Grass Valley 1200 Protocol 38 4K baud 8 bits 1 stop bit odd parity DPM Connection A DPM typically connects to port J31 but can be connected to any port except J28 For a DPM 100 700 ...

Page 42: ...aracter generator The inputs allow remote triggering of a variety of switcher functions including transitions E MEM recalls Aux Bus Tally Back and crosspoint map switching Using the GPI Inputs and GPI Outputs menus you can assign which switcher functions are controlled by the GPI inputs and you can assign which switcher events will trigger GPI output relay closures Input relays require at least a ...

Page 43: ...6 GPI IN5 A1 7 GPI IN6 A1 8 GPI IN7 A1 9 GPI IN8 A1 10 GND 11 GND 12 GPI OUT8 A1 13 GPI OUT7 A1 14 GPI OUT6 A1 15 GPI OUT5 A1 16 GPI OUT4 A1 17 GPI OUT3 A1 18 GPI OUT2 A1 19 GPI OUT1 A1 COM 20 GPI OUT0 A1 21 NC 22 NC 23 NC 24 NC 25 NC 1 GND 2 TERM TX1 A1 3 TERM RX1 A1 4 GND 5 TALLY 16 6 GND 7 GND 8 TALLY 15 9 GND 10 TALLY 13 11 TALLY 14 12 TALLY 11 13 TALLY 12 14 TALLY 9 15 TALLY 10 16 TALLY 7 17 ...

Page 44: ...of the cord into the back of the Model 1200 control panel WARNING To prevent danger of electric shock ensure that the power connector center conductor connects to a proper earth ground Figure 2 9 AC LINE IN Connector J39 3 Verify that all cabling is clear of cooling fans and that there are no loose tools or other metal objects near power supply buses or connections 4 Check that all Modules and Int...

Page 45: ...t RF EMI specifications and to ensure proper cooling the door on the front of the Signal Processor must be closed Maintenance personnel should be familiar with the Control Panel and its usage For information and reference see the Model 1200 Operation Manual 8 In the event of a problem refer to the Troubleshooting section of this manual If you are unable to resolve the problem using the Troubleshoo...

Page 46: ... if neither of the above steps resolves the problem turn the frame and panel power switches off and on again LampSaver Panel Sleep Mode Note that the switcher includes a ÒsleepÓ mode called LampSaver which is intended to extend pushbutton lamp life span When the switcher is idle for an extended period adjustable all button lamps turn off To wake up the switcher press any button or turn any knob Fo...

Page 47: ...e switcher The white menu Òhot buttonsÓ at the left of the display activate the top level menus The black buttons and knobs surrounding the display are ÒsoftÓ buttons and knobs that change function with each menu Labels displayed along the bottom and right edges of each menu indicate the functions of the soft controls The Ò Ó display symbol indicates a lower level menu that you can view when you p...

Page 48: ...the following sub menus and functions SYSTEMPARAMS Ñ4 3 16 9 Picture Aspect Edit Field Dominance and System Clock DEFINE INPUTS ÑDefine Inputs Chroma Key Sources and Crosspoint Legends XPT MAP ÑMap physical inputs to crosspoints OUTPUTS ÑConfigure Outputs TIMING ÑSwitcher Timing PORTS ÑSerial Port Configuration GPI ÑGPI Input and Output Setup TALLY ÑTally Relay Setup Figure 2 13 Configuration Menu...

Page 49: ... during a particular color field to prevent color shifts Some editing systems may require a particular selection see your editor manual for details The default is BOTH fields 4 Set the date by selecting DATE with the SELECT soft button and turning the soft knobs to select the appropriate YEAR MONTH and DAY When the date is correct confirm it using the CONFIRM DATE soft button 5 Set the time by sel...

Page 50: ...wo physical inputs are needed to accommodate a full bandwidth chroma key signal The Inputs 4 4 4 CK Sources sub menu designates those two physical inputs Associate a four character legend with each physical input These legends appear in the Inputs menus and also in the LED displays that may be installed between the Key and Aux crosspoint pushbutton rows Define Inputs Using the Inputs menu define e...

Page 51: ... use the soft knobs 1 Select the Physical Input source for channel A by using the 4 4 4 CK CHANNEL A soft knob 2 Select the Physical Input source for channel B by using the 4 4 4 CK CHANNEL B soft knob Figure 2 16 4 4 4 Chroma Key Sources Menu DEFINE INPUTS MENU 10 ENTER NAME BITS TYPE SELECT EFX RTN FLAG 8 4 4 4 CK SOURCES XPT DISP LEGENDS PHYSICAL INPUT J2 AUTO SEL KEY SRC J3 PHYSICAL INPUT SIGN...

Page 52: ...t The Signal Name column displays the descriptive name of the selected Physical Input Signal Name is created in the Define Inputs menu 2 To enter a new Local Name for the highlighted physical input press the CLEAR LOCAL soft button type a descriptive name using the keyboard and press the ENTER LOCAL soft button Figure 2 17 Crosspoint Display Legends Menu CROSSPOINT DISPLAY LEGENDS MENU ENTER LOCAL...

Page 53: ...t the crosspoint to be highlighted 3 Use the PHYSICAL INPUT soft knob to assign a Physical Input to the highlighted crosspoint The Signal Name column will display the descriptive name of the selected Physical Input Signal Name is created in the Define Inputs menu Figure 2 18 Crosspoint Map Menu CROSSPOINT MAP MENU ALTERNATE NORMAL XPT MAP SELECT XPT 5 PHYSICAL INPUT J2 XPT PHYSICAL INPUT SIGNAL NA...

Page 54: ... or OFF for that output Shaping ON produces a video output shaped by the key signal and matted over black Shaping for the Program and Preview DAC outputs follows the Program 1 2 or Clean Feed output shaping selection 4 Use SIGNAL SOURCE to select either CLEAN clean feed video with no key or PROGRAM video with key Figure 2 19 Outputs Menu OUTPUTS MENU 10 BITS RES SHAPING 8 OUTPUT OUTPUT NAME BITS R...

Page 55: ...nding movement of the switcher outputs To adjust the overall timing use the COARSE soft knob to set a rough timing value then adjust the REF TIMING FINE soft knob to fine tune the timing The maximum timing range is 330 clocks a clock equals 69 84 nanoseconds Figure 2 20 Timing Menu TIMING REF TIMING FINE 170 CLOCKS COARSE J1 J2 J3 J4 J5 J6 J7 J8 J9 J10 J11 J12 J13 J14 J15 J16 INPUT CLOCKS µS INPUT...

Page 56: ... 2400 baud 8 bits 1 stop bit no parity DPM 100 700 PORT ÑUse DPM protocol RS 422 address 30H 38 4 Kbaud 8 bits 1 stop bit odd parity EDITOR PORT ÑUse GRASS VALLEY PRODUCTS 1200 address 30H Communication is RS 422 38 4Kbaud 8 bits 1 stop bit odd parity You may also use 110 or 200 switcher protocol if your editor does not have a 1200 interface but functionality will be reduced AUX SATELLITE PANEL PO...

Page 57: ... 8 STOP BITS PORT PORT PROTOCOL ADDR BAUD RATE 2 EVEN NONE 1 BITS PARITY STOP BITS TTY PANEL MODEM EDITOR DPM TERMINAL 1200 PNL MODEM 1200 DPM 9600 38 4K 2400 38 4K 38 4K 00 30 00 30 30 8 8 8 8 8 NONE ODD NONE ODD ODD 1 1 1 ODD PROTOCOL MODEM ADDRESS 00 BAUD RATE 2400 FACTORY DEFAULT Exit 1 1 ...

Page 58: ...ing the SELECT GPI INPUT OUTPUT soft knob to highlight the desired input or output 3 Use the SELECT EVENT soft knob to assign an event to the highlighted GPI Two events deserve special mention The ALTERNATE XPT MAP selection allows you to use a GPI input to switch between two different crosspoint maps stored in the Input Map menu This can be convenient when you have two different uses for the swit...

Page 59: ...O TRAN DISK CUT E MEM 1 LEARN E MEM RECALL AUX 1 TALLY BACK EFFECT KEY 1 CUT AUX 2 CROSSPOINT 3 GPI OUTPUTS GPI Inputs are ENABLED GPI OUTPUTS ON OFF GPI OUTPUT TEST SELECT GPI OUTPUT 4 SELECT EVENT 10 GPI OUTPUT STATE EVENT OPEN OPEN CLOSED CLOSED OPEN OPEN OPEN OPEN Exit 1 2 3 4 5 6 7 8 EFFECT CUT EFFECT AUTO TRAN DISK CUT E MEM 1 LEARN E MEM RECALL AUX 1 TALLY BACK EFFECT KEY 1 CUT AUX 2 CROSSP...

Page 60: ...GPI Inputs menu The Tally menu displays a table listing the 16 physical inputs along with the signal name for each input If a physical input is currently being high tallied that physical input will be highlighted in the table To test a tally output select the desired input on the PGM bus and watch the Tally menu display to see that the selected input highlights To test all of the tally outputs set...

Page 61: ...bels in the crosspoint pushbuttons To remove a pushbutton lens grasp the pushbutton lens firmly with your fingers and pull the lens off of the button Then install the lens chip on top of the pushbutton and push the lens back into place See Figure 2 25 for details Figure 2 25 Pushbutton Lens Chip Installation LENS LENS CHIP PUSHBUTTON TP0400 202 ...

Page 62: ...otherboard via 50 pin header connectors Screws at the corners of the option submodule secure it in place Figure 2 26 shows how to mount the options and Figure 2 27 shows the locations of the submodule options on the main modules Special instructions for Analog Output DAC Digital to Analog option installation and the Satellite Aux Panel installation are given on the following pages Figure 2 26 Typi...

Page 63: ...9 Borderline 064909 Borderline 064909 Borderline 064913 Depth Option 064912 DAC Option J3 to J14 J1 to J15 J2 to J16 SPG J1 to J30 J2 to J29 J3 to J31 Chroma Keyer Control Processor Module Crosspoint Module Keyer Module J1 to J13 J3 to J16 J2 to J19 J4 to J20 Key 1 Proc J1 to J12 J3 to J11 J2 to J10 J4 to J9 Key 2 Proc J1 to J18 J3 to J17 J2 to J15 J4 to J14 DSK Proc Mixer Module J3 to J14 J4 to J...

Page 64: ...view Analog Output Installing the Option Modules The Analog Output Option consists of two mezzanine boards the 064912 Analog Output Support module and the 064815 Analog Output module Install these mezzanines as explained below 1 Remove the Program or Preview 064910 Mixer module from the switcher frame and place it on an anti static mat where you can work on it 2 Install the assembled option mezzan...

Page 65: ...2 37 Analog Output Option Installation Figure 2 28 Installing the Analog Output Option DAC Modules PROGRAM OR PREVIEW MIXER MODULE SPACE FOR DAC OPTION DAC SUPPORT DAC ...

Page 66: ... J6 for the blanking width that you want on the analog output RS 170 or RP 125 When the jumper is set to RS 170 wide blanking blanking edges follow RS 170 specifications for 60 Hz systems or follow the CCIR 470 2 recommendation for 50 Hz systems When set to RP 125 blanking is active from end of active video EAV to start of active video SAV inclusive as described in SMPTE RP 125 2 On the 064912 Ana...

Page 67: ... format See Table 2 1 for details 3 Locate jumpers J4 J8 and J10 on the Analog Output board Refer to Table 2 1 and set each jumper to the desired analog output format Note that some formats require installing two jumpers on J8 and J10 Extra jumpers are stored in an inactive socket J7 If you are changing to a format that uses one jumper at J8 and J10 store the extra jumpers at J7 If you lose a jump...

Page 68: ...Feed Output Clean feed video consists of Program or Preview video without the downstream key Table 2 1 Analog Output Option Jumper Settings Format Selection J7 Analog Output Support Setup J5 J6 J9 J11 Analog Output Format J4 Y Analog Output Format J8 R Y Analog Output Format J10 B Y Analog Output Format EBU SMPTE No Setup a a b c RGB 714 v No Setup b b b d b d RGB 714 v Setup b c d a d RGB 700 v N...

Page 69: ...or monitor inputs with 75 Ohms 3 Observe the analog output on the scope or monitor and adjust the Y R Y and B Y gain controls on the Analog Output board to match the waveform to the desired signal levels shown in Figure 2 29 for color difference signals or Figure 2 30 for RGB signals The gain adjustment trim pots are accessible through holes in the back of the 064815 Analog Output mezzanine board ...

Page 70: ...0H 200H 040H 3ACH 040H 700 0 350 0 350 350 0 350 300 700 0 467 0 467 467 0 467 300 467 0 467 467 0 467 714 54 0 286 714 0 467 0 467 467 0 467 286 700 0 350 0 350 350 0 350 300 324 0 324 324 0 324 70 52 5 0 300 700 0 300 324 0 324 324 0 324 RP 125 EB U BET A 50 BET A 60 BET A 60 SMPTE MII 50 MII 60 MII 60 NO SETUP NO SETUP COLOR DIFFERENCE FORMATS NOTE All voltage levels are in millivolts ...

Page 71: ...Standards SYNC WHITE YELLO W CYAN GREEN MA GENT A RED BLUE BLA CK B R G 714 0 714 0 286 714 0 0 286 0 286 0 700 0 0 300 700 0 0 300 700 0 0 300 714 54 0 286 714 54 0 286 714 54 0 286 NOTE All voltage levels are in millivolts RGB 714 RGB 700 RGB 714 NO SETUP RGB FORMATS ...

Page 72: ...with the panel 3 Set the port jumpers on the switcher Control Processor Module for RS 422 Using the Port Configuration menu set the Aux Satellite Panel protocol 9600 baud 8 bits 1 stop bit no parity These settings match the port to the fixed requirements of the Satellite Panel 4 Select 120 Vac or 230 Vac on the satellite power supply transformer Then connect the transformer to J1 on the Satellite ...

Page 73: ...50 60 Hz 10 Watts DC connector 1 72 4 4CM 19 00 48 3CM 17 00 43 2CM 7 50 19 0CM J2 Serial Control Port male 9 pin D J1 DC Power input 12 22 Vdc Removable Rack Ears May be repositioned or removed for flush mounting in a console AC Connector 1 GND 2 RX 3 TX 4 GND 5 GND 6 GND 7 RX 8 TX 9 GND Port fixed at RS 422 9600 baud 8 bits 1 stop bit no parity ...

Page 74: ...2 46 Section 2 Ñ Installation ...

Page 75: ...al Description Introduction This section describes the internal architecture of the Model 1200 Switcher The following main topics are discussed System OverviewÑpage 3Ð2 Frame ModulesÑpage 3Ð10 Control PanelÑpage 3Ð38 ...

Page 76: ...D AUX BUS SIGNAL ROUTING AUX 1 AUX 2 K K K V V V V BORDERLINE KEY EDGE GENERATOR OPTION BORDERLINE KEY EDGE GENERATOR OPTION CHROMATTE 4 2 2 4 4 4 CHROMA KEY OPTION SECOND MIX EFFECTS KEYER OPTION BORDERLINE KEY EDGE GENERATOR OPTION SERIAL INPUT OPTION PARALLEL INPUT OPTION SERIAL INPUT OPTION SERIAL INPUT OPTION SERIAL INPUT OPTION PARALLEL INPUT OPTION PARALLEL INPUT OPTION PARALLEL INPUT OPTIO...

Page 77: ...LOG PREVIEW VIDEO YUV RGB OR Y R Y B Y ANALOG PROGRAM VIDEO YUV RGB OR Y R Y B Y K K K V V V K K K PGM PST Z KEY DEPTH PROCESSOR OPTION PROGRAM MIXER EFFECTS SEND AUX BUS OUTPUT OPTION DIGITAL TO ANALOG CONVERTER OPTION SERIAL PROGRAM OUTPUT OPTION PARALLEL PROGRAM OUTPUT OPTION PREVIEW CLEAN FEED OUTPUT OPTIONS EFFECTS MIXER DOWNSTREAM KEY MIXER Z KEY DEPTH PROCESSOR OPTION EFFECTS MIXER DOWNSTRE...

Page 78: ...r repair Power Distribution The Model 1200 Signal Processor Frame contains an enclosed power supply which provides all power for the frame The power supply has been designed for easy removal and replacement in case of a problem A second power supply in the control panel supplies panel power Power supply characteristics are as follows Frame Input Voltage 100 to 240 volts 50 to 60 Hz Autoranging and...

Page 79: ...g the inputs into luminance and chrominance video or key and depth keys Connecting inputs to the internal buses Generating mattes Interfacing to the Chroma Keyer Submodule option First the signal enters the auto timing circuit which times all the inputs and splits the signals into luminance and chrominance The video then enters the main crosspoint matrix which assigns each input to a particular in...

Page 80: ...e ECL levels of the external signal and the TTL signals used internally in the system The Serial Input Module also converts the signal between serial and parallel The Input modules strip the clock off the input signal for timing The Output Modules reassemble the clock and data Chroma KeyerÑThe Chroma Keyer option mounts on the Crosspoint Module This submodule creates the chroma key and key fill fr...

Page 81: ...PU that it is installed and what version number it is The CPU writes control values only to modules that are installed Timing Signals In the Model 1200 all timing signals are generated in the Sync Pulse Generator Submodule This submodule plugs into the Control Processor Module The timing signals are sent to the Control Processor Module where they go through fanout and distribution to the various v...

Page 82: ...ill video may be inserted The 1200 configuration menus ask you to identify video inputs as shaped or unshaped because the switcher handles those two types of fill video signals differently For keying with shaped fill video the keyer multiplies only the background video with the key signal to cut a hole in the background and then adds the already shaped fill video into the hole For fill video that ...

Page 83: ...ed at full rate the depth information which is 20 bits wide alternates between the MSB and the LSB On the Chroma Keyer Submodule the chrominance signal is split The clock rate is then upsampled to its full 13 5 MHz rate on each bus This is done by creating new bytes between each of the existing bytes by averaging between the last byte and the next byte 16 X 9 The Model 1200 can handle 16 X 9 video...

Page 84: ...supply along with the fan is enclosed in a removable sled to make it easy to exchange broken power supples The power supply is not designed to be user serviceable The Control Panel has a separate Power Supply refer to the Control Panel section titled Power Supply on page 3Ð10 Table 3 1 Power Supply Module Voltage Current Use 5 Volts 60 Amps Frame I O Modules 5 2 Volts 12 Amps I O Modules 9 Volts 1...

Page 85: ...eading and writing between the control panel and the signal processor frame Calculations necessary to do the video functions Reading system configuration Figure 3 2 Control Processor Module Block Diagram 68881 MATH COPROCESSOR 68020 STATE PROCESSOR PARAMETER EEPROM I O SENSING RAM FRAME INTERFACE 68302 I O PROCESSOR TALLY RELAYS GPI OUTPUTS GPI INPUTS SYNC PULSE GENERATOR SUBMODULE PANEL TTY MODEM...

Page 86: ...l 1200 boots from RAM The field LEDs are on during the vertical interval while that processor is reading and writing The Background LEDs are on while that processor is doing background tasks Since the background tasks take up most of the processor time the Background LEDs will be on bright and the field LEDs will be on dim When there is activity on any of the serial ports LED DS8 will flash In add...

Page 87: ... circuit is compared to an H sync created by counting down the clock The phase difference between these two signals is used to adjust the clock frequency so that the clock remains locked to the input reference Figure 3 3 Sync Pulse Submodule BUFFER LOW PASS FILTER CLAMP PULSE GEN SAMPLE AND HOLD 50 PICKOFF AND SYNC STRIPPER SPG RESET GENERATOR 13 5 MHz SPG 18 MHz SPG VARIABLE DELAY CPU I F STANDAR...

Page 88: ...sent to three places a sync separator a standard ID circuit and a reset generator The sync separator generates H sync This H sync is sent to the phase detector which locks the clock to the input reference video The standard ID circuit decides whether the reference is 525 or 625 line video The reset generator circuit generates vertical sync reset and a field ID pulse which time the sync pulse gener...

Page 89: ...rial to parallel video and the second converts from ECL to TTL signal levels The output of the Serial Input Module is a TTL version of Parallel video The clock is stripped off the serial signal and sent to the Crosspoint Module Figure 3 4 Serial Input Module Parallel Input Module The Parallel Input Module Figure 3 5 converts the signal from ECL to TTL and then runs the signal through a latch to al...

Page 90: ...elay data to a variable delay The variable delay uses the data to delay the signal so that all of the video sources are timed Figure 3 6 Crosspoint Module CROSSPOINT MATRIX 16 X 16 X 10 X 2 TX RECLOCK SELECT DELAY RX RECLOCK TX RECLOCK Y C Y C K K1 DEPTH K2 DEPTH CHROMA KEY SUBMODULE SELECT DELAY TX RECLOCK SELECT DELAY TX RECLOCK LATCH DELAY TX RECLOCK DELAY TX RECLOCK DELAY TX RECLOCK DELAY TX R...

Page 91: ...eorganized into video buses The Output buses for the Y luminance crosspoints are the following Luminance for Background A and B 2 buses Key and Luminance for Key 1 Key 2 and DSK 6 buses Luminance for Aux 1 and Aux 2 2 buses Luminance for Chroma Key 1 bus The Output buses for the C chrominance crosspoints are the following Chrominance for Background A and B 2 buses Chrominance for Key 1 Key 2 and D...

Page 92: ... requires tighter matching in the hue for the same response The Fringe Control causes the Hue Correlation circuit to respond to areas in the input scene that have little or no chroma The two Hue Correlation circuits on the 1200 chroma keyer are called background and foreground The Background Hue Correlation circuit is used for background color suppression and for generation of the chroma key signa...

Page 93: ...is positioned by the control panel joystick The cursor generator also produces a strobe used by the AutoCKey circuit to capture luminance and chrominance data at the location identified by the cursor The captured data is read by the 1200 CPU for each field and used to calculate the reference hue luma suppression level VGC clip and gain and shadow clip level The operator can select an area of the s...

Page 94: ...Coring Key Size Softness Position White CBlack CK_Y CK_C TP0715 02 CK_Key 4 4 4 Interface Multiplexer Vposition C U Bkgd C V Bkgd YBkgd Y C Codd Ceven Ref Hue Aperture Multiplier Y Multiplier FGD Chroma Supp 1 X 1 1 1 X Fringe Control Subtract Limit FGD Hue Correllation Circuit Soft Box Mask Generator FGD Hue Aperture Multiplier Noise Reduction Key Shadow Interpolation Limit CPU Outputs to Crosspo...

Page 95: ...s routed to the effects send crosspoints on the Aux 1 and Aux 2 input buses The effects send crosspoints place this signal on any of the key output buses WIPE SOLID GENERATOR BORDERLINE GENERATOR SUBMODULE KEY PROCESSOR SUBMODULE Rx RECLOCK Rx RECLOCK Rx RECLOCK RECLOCK SCALE AND SHAPE RECLOCK DELAY EFFECTS SEND OUTPUT BORDERLINE GENERATOR SUBMODULE KEY PROCESSOR SUBMODULE BORDERLINE GENERATOR SUB...

Page 96: ... by modifying them according to various mathematical formulas Counters divide the horizontal and vertical ramps into segments to produce pattern multiplication The pattern outputs consist of a full 16 bit signal which is sent to the Wipe Module to be used for wipe transitions and a 10 bit version which is sent through a proc amp to the Preset Pattern Generator on the Keyer Module Figure 3 9 Wipe P...

Page 97: ... used Lum Key masked unshaped video shape video using masked key Lum Key masked shaped video unshape video during mask Preset Pattern Key Pattern New is used to shape the video Pattern Old and Pattern New are used to generate the preset pattern key Pattern Old is also used to create a mask on non preset pattern keys The Borderline option and its associated Tx reclocks and selects are used to put a...

Page 98: ...Additive Mixer combines the video and border using the Pattern Old signal to create the video with the border inserted The video signal is then sent to the Mixer Module if the Borderline is not used If the Borderline is used then the video goes through the Borderline Submodule before it is sent to the Wipe Module Luminance Linear and Chroma Keys The Key signal and the Pattern Old signal enter the ...

Page 99: ...NAM The output of the NAM is the difference between the delayed key and the stretched key which is the border The border is sent to the Border Opacity Mixer which under the control of the CPU sets the opacity of the border The border signal then is sent to both the Border Mixer and the Combiner circuit The Combiner circuit combines the key signal and the border signal and outputs the resultant key...

Page 100: ...ESSING MIXER OUTPUT PROCESSING KEY AND DEPTH OUTPUT PROCESSING TRANSITION GENERATORS AND KEY PROCESSING DEPTH SUBMODULE Bkgnd A Bkgnd B Key 1 Video Key 2 Video DSK Video DSK Key Border Matte Combiner Border Matte DSK Mixer Key 1 and 2 Depth Key 1 2 and DSK Transition Center Priority Depth Clean Key Depth DSK Depth Wipe Pattern Key 1 Key Key 2 Key Background A Key Background B Key Key Out A Key Out...

Page 101: ...s of all of these operations are kept at full accuracy until reaching the limit and round circuit which does two things it rounds the results to ten bits and prevents an overflow or underflow condition The final mixer combines the background and key signal with the border control signal to create the Clean Feed Signal This signal is sent both to the DSK and to the Clean Feed Output The Clean Feed ...

Page 102: ...he Fade To Black Multiplier the Unshaper and the Encoder to the output The Clean Key signal Key 1 and Key 2 combined is combined with the DSK Key in the Additive Mixer This creates a composite key which is available as an output if black is chosen as the background Figure 3 14 DSK RE CLOCK DSK VIDEO MIX MULTIPLIER VIDEO MIXER FADE TO BLACK MULTIPLIER UNSHAPER 1 KEY D1 ENCODER RE CLOCK VARIABLE DEL...

Page 103: ...of the key and depth inputs to be put on either or both of the key outputs The encoder multiplexes the key and depth signals into one signal Figure 3 15 Key and Depth Output Processing MIXER MIXER KEY A SELECT KEY B SELECT D1 ENCODER TX RECLOCK DEPTH A SELECT DEPTH B SELECT D1 ENCODER TX RECLOCK Clean Key CPU Data DSK Key Clean Depth DSK Depth Key Sel A Key Sel B Key Sel A Key Sel B Key Out A Key ...

Page 104: ...revious transition So the Key 1 Summation is entered into the Key 2 Transition Generator and the Key 2 Summation is entered into the Background A Transition Generator The Key 2 Transition Generator is identical to the Key 1 Transition Generator except that the Key 1 Summation is entered into the Key 2 Transition Generator Background A is considered to be over Background B and both keys are over bo...

Page 105: ... PAL LATCH MIXER VARIABLE DELAY MIXER OUT IN OUT IN OUT IN OUT IN OUT IN Transition Old Transition New Transition Center Wipe Pattern CLKRX Key 1 Key Key 2 Key Bkgd A Key Bkgd B Key Priority Depth CPU Data Priority Depth K1 K2 BA BB To Depth Submodule Priority Pre processor Pri Dpt N Pri Dpt RR K1 K2 Pri Dpt N K1 K2 BA K2 K1 BA K2 K1 BB Key 1 Mix Key 2 Mix Bkgd A Mix Bkgd B Mix BA K2 K1 BB BA K2 K...

Page 106: ...d Gain circuit after the Priority Depth Generator determines whether the intersection of the two keys is soft or hard The Key 1 Key 2 and DSK Keys all go through a Clip and Gain This circuit decides whether or not the key appears based on the Clip and Gain settings and key opacity The Depth Shaper sets the key depth to zero where the key is not on The depths of the two M E Keys are then sent to a ...

Page 107: ...RATOR DEPTH INTERPOLATION AND OFFSET ADDER DEPTH INTERPOLATION AND OFFSET ADDER DEPTH SHAPER DEPTH SHAPER DSK DEPTH SHAPER NAM REMUX DELAY REMUX DELAY NAM CLIP AND GAIN AND SHAPING PRIORITY DEPTH GENERATOR Key 1 Key Key 1 Depth Transition Center Key 2 Depth Key 2 Key DSK Key CPU DSK Depth Clean Feed Key Depth Priority Depth ...

Page 108: ...components of the video signal to ensure that the analog output aligns with reference video ASIC U11 mixes between the video signal and black in order to add blanking to the video Following signal selection and processing five half band filter ASICS U1 U2 U5 U6 and U9 interpolate the luma and chroma components of the video signal to double clock rate 27 MHz or 36 MHz The luminance component passes...

Page 109: ...lf Band Filter Half Band Filter Half Band Filter Blanking Mixer Timing Sequencer Processor Interface Timing Interface Power Interface LUM_DACLN LUM_DADTY CHR_DACLN CHR_DADTY Y_DAC B Y_DAC R Y_DAC Sync Clamp Setup S W Control Clocks Timing 5V 5 2V 5VA 5VA Power Input Clocks Timing Data Address Strobe Board ID Blanking H V FID ...

Page 110: ...ts such as U7 U8 and U3 for the Y channel where the signals are clamped to ground during back porch Output drivers U12 U17 and U5 and associated components scale the analog video components to produce color difference or RGB outputs for driving the analog BNC connectors on the back of the frame Jumpers J5 J6 J8 and J10 select the scaling components to be used thereby determining whether the output...

Page 111: ...combine the video and the video clock and they convert the video from the TTL internal signal to the ECL digital video on the output The Serial Output Module also converts from the parallel internal signals to the serial video output Figure 3 20 Output Modules SERIAL ENCODER Serial Out VID_OUT 0 9 VIDCLK VID_OUT 0 9 VIDCLK VDB 0 9 VDB 0 9 VBCP VBCP TTL TO ECL CONVERTER Serial Output Module Paralle...

Page 112: ...oards which hold the pushbutton switches controls lamps the switch and control encoding logic and the lamp decoding logic When pushbuttons are pressed and knobs are turned on the panel the resulting voltage changes are encoded by the switch and control encoding logic Switching operations are relayed by a complete RDY EPC 31 PC hardware set which acts as the Control Panel MPU 064926 The Control Pan...

Page 113: ...ss decoding is done on the Crosspoints module Panel analog inputs lever arm joystick and all rotary controls are handled by the Analog to Digital Data Acquisition system circuit located on the Matte Key Wipe module Figure 3 21 Panel Overview Video Timing Reference Serial Comm to Video Electronics Frame Power Supply Keyboard Mouse RDY EPC 31 based Personal Computer Motherboard Control Panel MPU 064...

Page 114: ... processor using the serial chips on the I O board 4 The frame control processor analyses the switcher state based on the message from the MPU The frame control processor will determine what action is needed to update the switcher lights buttons or menu text and sends a message to the MPU 5 The MPU analyses the message from the frame control processor and identifies which addresses need to be modi...

Page 115: ... topics are discussed OverviewÑpage 4Ð2 Servicing PrecautionsÑpage 4Ð2 Servicing ProceduresÑpage 4Ð4 Routine MaintenanceÑpage 4Ð5 Circuit Module ReplacementÑpage 4Ð8 Lever Arm AdjustmentÑpage 4Ð11 Software Installation or UpgradeÑpage 4Ð13 System Power Down ProcedureÑpage 4Ð16 System Restart after Power SergeÑ page 4Ð17 ...

Page 116: ...r Down Procedure text on page 4 16 of this manual WARNING Unless specifically directed to do otherwise by a maintenance procedure turn power off before removing or repairing any circuit module or assembly in this system Before working on any power supply assembly turn off the power and disconnect the power cord from the AC power source NOTE When power to the signal processor frame is turned off al...

Page 117: ...circuit module in the Signal Processor frame is removed or reinstalled while the power is on it is unlikely that permanent damage will occur to the module or system Microprocessor messages however may become scrambled This may result in system errors and improper operation If these problems occur the only sure way to restore proper operation is to turn power to the frame OFF and then back ON again...

Page 118: ...quipment that is powered up Hazardous currents are present in the power supplies on the backplane and on circuit modules Failure to follow this precaution could result in severe shock and other injury Only qualified service personnel should work on the Control Panel and Frame power supply assemblies Failure to observe this precaution could result in severe shock or potentially expensive damage to ...

Page 119: ...he filters frequently and keep them clean Fuse Replacement The system contains the following fuses AC Connector 5A 3A F 3AG Frame Power supply AC 10A F 3AG 5V 15A F 3AG 15V 3A F Mini Fuse 9V 3A F Mini Fuse Modules 5V 30A 3AG NOTE The Keyer Module has two fuses one for the module and one for the submodules You can verify that the module fuses are intact by checking that the DC power LEDs on the fro...

Page 120: ...o indicate their activated state If a lamp in any button fails to light when it should it should be replaced The lamp bulb 7382 is removed by carefully pulling the button cap up out of the panel then pulling the bulb out of the Switch See Figure 4 1 Figure 4 1 Control Panel Lamp Replacement Pushbutton Lamp Switch 0347 04 07 ...

Page 121: ... that you can probe circuits and test points while they are powered up Figure 4 2 shows how to use the Extender Figure 4 2 Using the Module Extender 3 SLIDE MODULE INTO EXTENDER AND LOCK EJECTOR TABS IN PLACE 2 INSERT EXTENDER INTO FRAME AND LOCK EJECTOR TABS IN PLACE TP0286 M15 UNFOLD EXTENDER AND LOCK KNOBS IN PLACE 1 ...

Page 122: ...equipment and training are required to properly repair these modules Static Charges Many of the integrated circuits used in this equipment may be damaged by static discharge Damage caused by static discharge may not show up immediately Instead it may result in reduced life span of the component which may result in earlier than expected failure of the module CAUTION To avoid damage to circuitry cau...

Page 123: ...3 Control Panel Module Board Locations I O Module 064919 Control Panel MPU RDY EPC 31 064926 Display Surround Module 064922 Crosspoints Module 064920 Peripheral Enable Module 064924 E MEM Module 064921 Matte Key Wipe Module 064923 Disk Drive On 1 Off 0 Switch 1 0 Cable Converter P S Video Module 160207 3 slot ISA Connector Module 160208 ...

Page 124: ...placed 5 Disconnect any cables or wiring that may be attached to the board being removed CAUTION Use care when removing cables or wiring to prevent the bending of connector pins or damage to cable assemblies Damage of this type can result in improper operation or further damage to other circuit modules CAUTION Use caution when handling or removing circuit boards Due to their size and weight and be...

Page 125: ...control panel see Figure 4 4 Center the R604 Offset and the R605 Gain pots 2 On the I O board 064919 turn the rotary switch to 1 Figure 4 4 Lever Arm Adjustment 1 0 0 2 3 4 5 6 7 8 9 0 0 2 3 4 5 6 7 8 9 1 Diagnostic Menu Operation Normal Menu Operation On 1 Off 0 Switch Matte Key Wipe Module 064923 R605 Gain R604 Offset Location of R604 and R605 Pots ...

Page 126: ...display shows approximately D20 Hexcode under the Avg column NOTE The R604 and R605 pots interact with each other It may be necessary to repeat the adjustments until the Avg reads approximately 2EA when the lever arm is in the lower edge position and D20 when the lever arm is in the upper edge position 8 Turn the rotary switch on the I O board to the 0 position for normal operation 9 Reboot the co...

Page 127: ... To do so load your old E MEM files into your Switcher updated with the latest software release and resave the E MEMs to a new disk thereby updating the E MEMs to the latest release Make note of the software version with which the E MEM files were saved write this information on the disk for future reference The software version number is crucial should you need to return your E MEMs to a previous...

Page 128: ... and locate the I O board 064919 Refer to Figure 4 6 Figure 4 6 Accessing the Software Installation Mode 2 Insert the control panel software diskette labeled 153309 into the disk drive 3 Open the lid and turn OFF the control panel power using the ON OFF switch 4 On the I O board turn the rotary switch to 9 nine See Figure 4 6 1 0 0 2 3 4 5 6 7 8 9 0 0 2 3 4 5 6 7 8 9 9 Software Update Operation No...

Page 129: ...is done and instructs you to install the Frame software diskette Remove the first diskette from the drive 7 Place the second diskette with the Frame software part labeled 153310 into the disk drive Once again turn OFF power to the control panel wait five seconds and turn it back ON to start the download When this download is done remove the second diskette 8 This completes the software download pr...

Page 130: ... with Safe Power Shut Down Selected It is now safe to remove AC power from the system and re power at a later time NOTE If you do not use this power down procedure before removing your systemÕs AC power you may expect to see corrupted memory and unstable system operation upon switcher restart MISC MENU OFF LAMP SAV ENABLE SHUT DOWN ON Warning CONFIRM CANCEL SHUT DOWN will halt the frame and requir...

Page 131: ...ct CONFIRM 4 The Model 1200 frame begins clearing the frame Dual Ported RAM and for approximately 10 seconds the screen displays CLEAR DPRAM is in progress The screen then displays DPRAM has been cleared Wait 5 seconds for the frame to transmit the new Switcher configuration to the 1200 control panel MISC MENU OFF LAMP SAV ENABLE SHUT DOWN ON Warning CONFIRM CANCEL SHUT DOWN will halt the frame an...

Page 132: ... screen then displays Factory reset completed Wait 5 seconds for the frame to transmit the new switcher configuration to the control panel 8 You may now power down the Model 1200 control panel and signal processor frame 9 Open the control panel and locate the I O board 064919 Refer to Figure 4 8 Figure 4 8 Accessing the Software Installation Mode 10 Reload your current E MEM and configuration file...

Page 133: ...ating faults that may occur in the Control Panel or Signal Processing Frame For safety service should only be performed by qualified personnel The following main topics are discussed OverviewÑpage 5Ð2 General TroubleshootingÑpage 5Ð3 Detailed TroubleshootingÑpage 5Ð6 Exchanging ModulesÑpage 5Ð9 Menu DiagnosticsÑpage 5Ð10 ...

Page 134: ... period as overheating may occur In order to avoid loss of data be sure to read the Service Precautions and Removing Circuit Modules precautions at the beginning of the Maintenance section of this manual before performing any maintenance procedure on this system Multi layer printed circuit manufacturing techniques have been used in the manufacture of many of these circuit modules Specialized equip...

Page 135: ...n instructions Check Setup Use the Configuration menus to check the setup of the Model 1200 If you want to reset the system to factory default setup use the FACTORY RESET soft button in the System Parameters menu If there is a problem with communications check the jumpers on the Control Processor Module see Section 2 Reset Microprocessor If the system appears to be ÒfrozenÓ or operating strangely ...

Page 136: ...these LEDs are off the AC fuses in the power supply or AC connector may be blown Bootup Diagnostic Indicators Use the power switch inside the front of the frame to turn power off and on again As the system boots up from power off only the 68302 I O Processor is running The first thing this processor does is perform diagnostic checks of the system As it does the checks different LEDs on the front o...

Page 137: ...ardware read write These are generally lit dimly most or all of the time Background LEDs light during background tasks These are generally lit brightly most or all of the time DS8 flashes on a serial port interrupt This indicates activity on one of the five serial ports and can be used to check that serial port communication is occurring Ten serial port LEDs flash to indicate read or write activit...

Page 138: ...Power Supply 1 Check fuse on that module 2 Verify that module is plugged in NO NO Power to System YES Power to Module YES Start 1 Verify RS 232 422 jumpers on Control Processor and baud rate parity etc in the config ports menu 2 Send data to Model 1200 and check for correct serial port LED flash YES NO YES NO Serial Port Communication Problems Switcher responding to Panel End a LED flashes Data is...

Page 139: ...Generator Submodule 1 Swap Input Modules 2 Swap Output Modules 3 Verify video in 4 Check Crosspoint Module 1 Verify Color Black is not selected 2 Check panel settings 3 Check video in 4 Check input configuration 5 Swap Program and Preview Mixer Modules 6 If there is no Preview Mixer Module then plug the Program Mixer Module into the Preview Mixer slot and look for a preview output NO NO Power to S...

Page 140: ...tor Frame Power Supply 2 Check for power on power cord 3 Replace Power Supply 1 Check fuse on that module 2 Verify that module is plugged in NO NO Power to System YES Power to Module YES Start Bad Preset Patterns Good Wipes 1 Check Wipe Solid Generator on Keyer Module YES NO NO YES ALL KEYS Bad Wipes Preset Patterns Bad Wipes Good Preset Patterns NO YES 1 Check Keyer Module 1 Check Key Processor S...

Page 141: ...er frame module The following frame modules are interchangeable The Program Mixer Module and the Preview Mixer Module The Program Depth Submodule and the Preview Depth Submodule Any of the Keyer Submodules on the Keyer Carrier Module Any of the Borderline Submodules on the Keyer Submodules Any of the Video Input modules Any of the Video Output modules ...

Page 142: ...mps are burned out or knobs or buttons are not functioning properly NOTE A keyboard and a keyboard adaptor are required to use the diagnostic menu functions Accessing the Diagnostic Menu 1 Open the control panel and locate the I O board 064919 2 On the I O board turn the rotary switch to 1 see Figure 5 4 Figure 5 4 Accessing the Diagnostic Menu 1 0 0 2 3 4 5 6 7 8 9 0 0 2 3 4 5 6 7 8 9 1 Diagnosti...

Page 143: ... Model 1200 Panel version xxxxxx 00A1 Copyright 1994 Grass Valley Group Inc Select a diagnostic A displays test B knob test C leverarm and joystick test D button lamp DIM test E button lamp BRIGHT test F walking lamp test G discrete LED test H comm port loopback test Return rotary switch to position 0 to exit diagnostics and return to DOS At the DOS prompt use 1200 to restart Enter letter to selec...

Page 144: ...y The rate the displays change can be adjusted using any knob The purpose of this test is to determine whether the complete range of characters are being displayed for each type of display While running the displays test the Diagnostic menu screen will appear as in Figure 5 6 To stop the test press any key on the keyboard Figure 5 6 Displays Test Menu Exit GVG Model 1200 Panel version xxxxxx 00A1 ...

Page 145: ... v Raw Delta 2 sec Min ÑThe minimum value of Raw Del over each 2 second interval or followed by 1 3 digits Raw Delta 2 sec Max ÑThe maximum value of Raw Del over each 2 second interval or followed by 1 3 digits Raw Delta 2 sec Avg ÑThe average value of Raw over each 2 second interval or followed by or then 1 3 digits The purpose of the test is to verify the range of each knob If the numbers change...

Page 146: ... 2 sec MinÑThe minimum value of Raw over each 2 second interval or followed by 1 3 digits Raw Lever 2 sec MaxÑThe maximum value of Raw over each 2 second interval or followed by 1 3 digits Raw Lever 2 sec AvgÑThe average value of Raw over each 2 second interval or followed by or then 1 3 digits The purpose of the test is to verify the range of each lever arm or joystick axis If the numbers change ...

Page 147: ...pose of this test is to verify the DIM feature of an individual button To stop the test press any key on the keyboard Exit GVG Model 1200 Panel version xxxxxx 00A1 Copyright 1994 Grass Valley Group Inc Select a diagnostic A displays test B knob test C leverarm and joystick test D button lamp DIM test E button lamp BRIGHT test F walking lamp test G discrete LED test H comm port loopback test Return...

Page 148: ...s test is to verify the BRIGHT feature of an individual button To stop the test press any key on the keyboard Exit GVG Model 1200 Panel version xxxxxx 00A1 Copyright 1994 Grass Valley Group Inc Select a diagnostic A displays test B knob test C leverarm and joystick test D button lamp DIM test E button lamp BRIGHT test F walking lamp test G discrete LED test H comm port loopback test Return rotary ...

Page 149: ...knob clockwise will increase the speed and counter clockwise will slow the speed until the test reverses The test will continue to cycle through the entire hardware register map The purpose of the test is to determine whether any lamps are not functioning and need to be replaced To stop the test press any key on the keyboard Exit Walking lamp test Use any knob to adjust speed Press any key to stop...

Page 150: ... 5 12 Figure 5 12 Discrete LED Test Menu Each discrete LED should flash in unison with the others The flash rate can be adjusted using any knob The purpose of this test is to verify that all the discrete LEDs are functioning properly To stop the test press any key on the keyboard Exit Discrete LED test Use any knob to adjust flash rate Press any key to stop the test ...

Page 151: ...ol panel to the frame is operating correctly To stop the test press any key on the keyboard Figure 5 14 Loopback Connector Exit GVG Model 1200 Panel version xxxxxx 00A1 Copyright 1994 Grass Valley Group Inc Select a diagnostic A displays test B knob test C leverarm and joystick test D button lamp DIM test E button lamp BRIGHT test F walking lamp test G discrete LED test H comm port loopback test R...

Page 152: ... control panel and locate the I O board 064919 2 On the I O board turn the rotary switch to 0 see Figure 5 15 Figure 5 15 Exiting the Diagnostic Menu 3 Reboot the control panel using the On Off switch 1 0 0 2 3 4 5 6 7 8 9 0 0 2 3 4 5 6 7 8 9 1 Diagnostic Menu Operation Normal Menu Operation On 1 Off 0 Switch ...

Page 153: ...ule Functional Description 3 25 Button Lamp Bright Test 5 16 Dim Test 5 15 C Cable Connections 2 8 Pinouts 2 16 Routing 2 7 Chroma Key Functional Description 3 24 Sources 2 23 Chroma Keyer Functional Description 3 18 Circuit Modules Removing 4 3 Repairing 4 3 Clean Feed Out Connection 2 12 Functional Description 3 27 Clock generation 3 14 Comm Port Loopback Test 5 19 Configuration Menu 2 20 Connec...

Page 154: ...tion 3 32 Overview 3 6 Diagnostic Failure Indicator 3 12 Indicators Bootup 5 4 Menu 5 11 Accessing 5 10 Exiting 5 20 Tests 5 12 Troubleshooting 5 6 through 5 8 Dimensions Control Panel 2 4 Signal Frame 2 7 Disconnect AC Power 4 16 Discrete LED Test 5 18 Displays Test 5 12 DPM Cable Pinouts 2 16 Connection defined 2 13 Functional Description 3 21 DSK 3 28 E Editor Connection 2 13 Effects Send Cross...

Page 155: ...ns 1 8 Menu Diagnostics Procedure 5 10 Knobs 2 19 Pushbuttons 2 19 Miscellaneous Menu 2 18 Modem Cable Pinouts 2 16 Connection Overview 2 13 Module Replacement Control Panel 4 9 O Option Functional Overview 3 6 Installation 2 34 Output Menu 2 26 Module Block Diagram 3 37 Functional Description 3 6 Overview 1 5 Specifications 1 10 Video and Key 2 12 P Panel Controller 3 7 Description 1 2 Overview 3...

Page 156: ... 3 15 Serial Ports J28 J30 J31 J32 2 13 Service 3 4 Precautions 4 2 Setup Using the Terminal for 2 19 Shaped and Unshaped Video 3 8 Signal Frame Dimension 2 7 Sleep Mode 2 18 Software Installation 4 13 Software Upgrade 4 13 Specifications Installation 2 3 Output 1 10 Reference Video In 1 9 Startup System 3 12 Sync Pulse Generator Submodule 3 7 3 13 System Boot 3 12 Parameters 2 21 Startup 3 12 T T...

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