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Table of Contents

WFM 1125 Option 0A/0B/0C/0D Service Manual

Performance Verification

Performance Verification

4–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Before Running the Performance Tests

4–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Required Equipments

4–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Tests

4–4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adjustment Procedure

Adjustment Procedures

5–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Requirements for Performance

5–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Equipment Required

5–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Display Adjustment

5–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Adjustment

5–5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage Adjustment

5–11

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance

Maintenance

6–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Related Maintenance Procedures

6–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparation

6–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inspection and Cleaning

6–3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Removal and Installation Procedures

6–7

. . . . . . . . . . . . . . . . . . . . . . . . . .

Firmware Updates

6–9

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preparation

6–9

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Floppy disks

6–10

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Update Procedure

6–12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting

6–15

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagnostics

6–15

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Options

Options and Accessories

7–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Option 0A Description

7–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Option 0B Description

7–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Option 0C Description

7–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories

7–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Parts List

Electrical Parts List

8–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diagrams

Diagrams

9–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Symbols

9–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mechanical Parts List

Mechanical Parts List

10–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts Ordering Information

10–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the Replaceable Parts List

10–2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Содержание Tektronix WFM 1125

Страница 1: ...on 0A 0B 0C 0D 071 0455 04 Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service www tektronix com ...

Страница 2: ...nts issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in Japan Sony Tektronix Corporation P O Box 5209 Tokyo Int l Tokyo 100 31 Japan Tektronix Inc P O Box 1000 Wilsonville OR 97070 1000 TEKTRONIX and TEK are registered trademarks of Tektronix Inc ...

Страница 3: ...ations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or conne...

Страница 4: ......

Страница 5: ...n you may purchase up to five years of Calibration Services Service Assurance Advantages H Priced well below the cost of a single repair or calibration H Avoid delays for service by eliminating the need for separate purchase authorizations from your company H Eliminates unexpected service expenses For Information and Ordering For more information or to order Service Assurance contact your Tektroni...

Страница 6: ......

Страница 7: ...ion 2 1 Preparation for Use 2 3 Installation 2 3 Supplying Operating Power 2 9 Operating Environment 2 10 Applying and Interrupting Power 2 11 Repackaging Instructions 2 12 Installed Options 2 12 Using the Menus 2 13 Bezel Menu 2 13 Configure Menu 2 13 DIAG CAL Menu 2 14 Remote Operation 2 17 RS 232C Connector 2 17 Remote Connector 2 18 Theory of Operation Theory of Operation 3 1 A15 Relay Sync bo...

Страница 8: ...ance Maintenance 6 1 Related Maintenance Procedures 6 1 Preparation 6 2 Inspection and Cleaning 6 3 Removal and Installation Procedures 6 7 Firmware Updates 6 9 Preparation 6 9 Floppy disks 6 10 Update Procedure 6 12 Troubleshooting 6 15 Diagnostics 6 15 Options Options and Accessories 7 1 Option 0A Description 7 1 Option 0B Description 7 1 Option 0C Description 7 1 Accessories 7 1 Electrical Part...

Страница 9: ...4 4 Audio output test initial hookup 4 16 Figure 4 5 External reference test initial hookup 4 18 Figure 4 6 External reference test initial hookup 4 20 Figure 4 7 Monitor output test initial hookup 4 24 Figure 5 1 Rear view of the waveform monitor in a enclosure 5 2 Figure 5 2 A5 display board view from top of the waveform monitor 5 3 Figure 5 3 A5 display board view from top of the waveform monit...

Страница 10: ...y 1 11 Table 1 16 Calculation dynamic range 1 12 Table 1 17 Setup memory 1 12 Table 1 18 CRT display 1 12 Table 1 19 AC power source 1 12 Table 1 20 Installation requirements 1 13 Table 1 21 Environmental characteristics 1 14 Table 1 22 Physical characteristics 1 15 Table 1 23 Certifications and compliances2 1 15 Table 2 1 Power cord conductor identification 2 9 Table 2 2 Effects of corrupted data...

Страница 11: ... conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do Not Operate Without Covers...

Страница 12: ...n damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product...

Страница 13: ...s retain hazardous voltages for long periods of time after power is turned off Before attempting any servicing discharge the CRT by shorting the anode to chassis ground When discharging the CRT connect the discharge path to ground and then the anode Rough handling may cause the CRT to implode Do not nick or scratch the glass or subject it to undue pressure when removing or installing it When handl...

Страница 14: ...Service Safety Summary viii WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 15: ...Digital Television Waveform Monitor Option 0A 0B 0C 0D and tables of the characteristics and descriptions that apply to it H Operating Information includes general information and operating instruc tions at the level needed to safely power on and service this waveform monitor A statement of the service strategy that this document supports and instructions for shipment of the waveform monitor are f...

Страница 16: ...ally as a module In general a module is an assembly like a circuit board rather than a component like a resistor or an integrated circuit Sometimes a single component is a module for example each chassis part of the waveform monitor is a module Symbols and terms related to safety appear in the Safety Summary found at the beginning of this document Besides the symbols related to safety this documen...

Страница 17: ... 6 Maintenance Service Offerings Tektronix provides service to cover repair under warranty as well as other services that may provide a cost effective answer to your service needs Whether providing warranty repair service or any of the other services listed below Tektronix service technicians trained on Tektronix products are best equipped to service your WFM 1125 Digital Television Waveform Monit...

Страница 18: ...tor is out of service when calibration or repair is required Tektronix supports repair to the module level by providing Module Exchange and Module Repair and Return Module Exchange This service reduces down time for repair by allowing you to exchange most modules for remanufactured ones Tektronix ships you an updated and tested exchange module from the Beaverton Oregon service center typically wit...

Страница 19: ...nt injury to yourself or damage to the waveform monitor do the following tasks before you attempt service H Be sure you are a qualified service person H Read the Safety Summary found at the beginning of this document H Read Service Strategy in this section and Supplying Operating Power in section 2 When using this document for servicing be sure to heed all warnings cautions and notes ...

Страница 20: ...Introduction xiv WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 21: ...Specifications ...

Страница 22: ......

Страница 23: ... monitor performance The waveform monitor offers the following features H Supports the following system formats H Option 0A 1035 60i 1035 59 94i 1080 60i and 1080 59 94i H Option 0B 720 60p and 720 59 94p H Option 0C 1035 60i 1035 59 94i 1080 60i 1080 59 94i 720 60p and 720 59 94p H Option 0D 1035 60i 1035 59 94i 1080 60i 1080 59 94i 1080 50i 720 60p 720 59 94p 1080 30sF 1080 29 97sF 1080 25sF 108...

Страница 24: ...ion 1 2 WFM 1125 Option 0A 0B 0C 0D Service Manual H AES EBU digital audio output except for 720 60p 720 59 94p 1080 24p and 1080 23 98p H Y Pb Pr picture monitor analog output from selected serial digital signal input ...

Страница 25: ... at an ambient temperature range of 20 C to 30 C after a warm up time of 20 minutes Electrical Specifications Table 1 1 Vertical deflection system Characteristic Performance requirements Reference information Frequency Response Luminance Channel Y 50 kHz to 30 MHz 0 5 of the frequency response at 50 kHz 37 125 MHz 12 dB Chrominance Channel Pb Pr 50 kHz to 15 MHz 0 7 of the frequency response at 50...

Страница 26: ...ied video sync Overlay 2 5 ms div 0 1 ms div MAG ON Refreshed 1 13 line rate of applied video sync 1 Field Equal to the field rate of applied video sync 2 Field Equal to the frame rate of applied video sync 3 Field Equal to the field rate of applied video sync Option 0B or 296M format mode of Option 0C 1 Line 2 0 ms div 0 1 ms div MAG ON Refreshed 1 5 17 line rate of applied video sync 2 Lines 4 0...

Страница 27: ...ync 1 Field Equal to the field rate of applied video sync 2 Field Equal to the field rate of applied video sync 3 Field Equal to the field rate of applied video sync Option 0D Segment Frame mode 1 Line 3 0 ms div 0 1 ms div MAG ON Refreshed 1 4 line rate of applied video sync 2 Lines 6 0 ms div 0 4 ms div MAG ON 1080 30sF 1080 29 97sF 6 0 ms div 1 0 ms div MAG ON 1080 25sF 6 0 ms div 1 2 ms div MA...

Страница 28: ...80 23 98p Refreshed 1 17 line rate of applied video sync 720 60p 720 59 94p Refreshed 1 13 line rate of applied video sync 1080 24p 1080 23 98p Overlay 2 0 ms div 0 1 ms div MAG ON 720 60p 720 59 94p 3 0 ms div 0 1 ms div MAG ON 1080 24p 1080 23 98p Refreshed 1 17 line rate of applied video sync 720 60p 720 59 94p Refreshed 1 13 line rate of applied video sync 1080 24p 1080 23 98p 1 Field Equal to...

Страница 29: ...rements Reference information Format SMPTE 240M SMPTE 274M or SMPTE 296M Option 0D SMPTE 240M or SMPTE 274M Option 0A or 240M 274M format mode of Option 0C SMPTE 296M Option 0B or 296M format mode of Option 0C DAC Resolution Luminance Channel Y 9 bit Chrominance Channel Pb Pr 10 bit Impedance 75 W Unbalanced Sync triĆlevel sync on Y channel Table 1 5 Stripped AES EBU digital audio output 1 Charact...

Страница 30: ... External reference input Characteristic Performance requirements Reference information Sync Format RSĆ170A PAL 2ĆLEVEL mode of Option 0D SMPTE 240M SMPTE 274M SMPTE 296M 3ĆLEVEL mode of Option 0D SMPTE 240M SMPTE 274M Option 0A or 240M 274M format mode of Option 0C SMPTE 296M Option 0B or 296M format mode of Option 0C DC Input Impedance u15 kW Unterminated Return Loss u30 dB to 30 MHz Display Res...

Страница 31: ...Rate 60i 59 97 Hz to 60 03 Hz 59 94i 59 91 Hz to 59 97 Hz 50i 48 024 Hz to 59 91 Hz Unknown field late Display Missing Reference Display Contents Segment Frame mode of Option 0D Internal Detected Field Rate 30sF 95 97 Hz to 60 03 Hz 29 97sF 59 91 Hz to 59 97 Hz 25sF 48 024 Hz to 59 92 Hz 24sF 47 976 Hz to 48 024 Hz 23 98sF 47 928 Hz to 47 976 Hz Unknown field late Display Missing Reference Display...

Страница 32: ...eristic Performance requirements Reference information Frequency Response u 14 MHz Vertical Gain Error t 0 25 Horizontal Gain Error t 0 25 Magnification X5 and X10 Display Pb Horizontal Pr Vertical Table 1 11 Lightning and diamond mode Characteristic Performance requirements Reference information Vertical Gain Error t 0 25 Horizontal Gain Error t 0 25 Electronic Graticule Display Lightning Y is di...

Страница 33: ...rformance requirements Reference information Delay Time from time of button pushed t 3 frames Length of Reference Memories 1 frame Table 1 15 Warning display Characteristic Performance requirements Reference information CRC Error LED LED lights for 0 5 seconds at error detected CRC Error Count CRC error count elapsed time in this mode and the time of latest error detected are displayed Resolution ...

Страница 34: ...e 1 17 Setup memory Characteristic Performance requirements Reference information Number of memory setups 4 setups Option 0A 0B 0C 100 setups Option 0D Save and Recall This function is performed from front panel menu and remote connector ground closure for the memory location number 1 to 4 For the other memory location number it is controlled through the RSĆ232C connector Table 1 18 CRT display Ch...

Страница 35: ... set 2 Per EN 55103Ć1 Annex B Table 1 20 Installation requirements Characteristic Performance requirements Reference information Heat Dissipation Maximum Power 90 W max 1 0 A rms at 50 Hz Maximum Dissipation Voltage 90 V with 5 clipping Surge Current 40 A peak for equal to or less than 5 line cycles after the instrument has been turned off for at least 30 seconds Clearance Top and Bottom 2 5 cm Si...

Страница 36: ...onĆoperating 10 minutes at 5 500 Hz with 2 46 g rms Mechanical shock NonĆoperating 294 m s2 30 g 1 2 sine 11 ms duration 3 shocks per surface 18 total Equipment Type Test and Measuring Equipment Class Class I Grounded product as defined in IEC 1010Ć1 Annex H Installation Category Category II as defined in IEC 1010Ć1 Annex J Note Rated for indoor use only Category Examples of Products in this Categ...

Страница 37: ...nt Emissions EN 61000Ć3Ć3 Line Voltage Alteration and Flicker EN 55103Ć1 Annex A Magnetic Field Emissions EN 55103Ć1 Annex B Power Line Inrush Current EN 55103Ć2 1996 Immunity IEC 61000Ć4Ć2 Electrostatic Discharge Immunity IEC 61000Ć4Ć3 RF Electromagnetic Field Amplitude Immunity IEC 61000Ć4Ć4 Electrical Fast Transient Burst Immunity IEC 61000Ć4Ć5 AC Mains Surge Immunity IEC 61000Ć4Ć6 Conducted RF...

Страница 38: ... sockets Equipment at this level includes appliances portable tools and similar products Equipment is usually cordĆconnected CAT I Secondary signal level or battery operated circuits of electronic equipment Pollution Degree A measure of the contaminates that could occur in the environment around and within a product Typically the internal environment inside a product is considered to be the same a...

Страница 39: ...Operating Information ...

Страница 40: ......

Страница 41: ... following three subsections H Preparation for Use Describes the installation environmental requirements information of how to power on or off etc H Using the Menu Describes the general menu operating information and DIAG CAL menu structure H Remote Control Describes the remote interfaces for servicing ...

Страница 42: ...Preparation for Use 2 2 WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 43: ...which may be required for normal use For more information on accessories refer to page 7 1 Because operating environments vary the waveform monitor is not shipped with a cabinet unless you have ordered one All qualification testing for the waveform monitor was performed in a 1700F00 cabinet To guarantee compliance with specifications you should operate the waveform monitor in one of the cabinets d...

Страница 44: ...ront edges must securely contact the conductive front bezel on all four sides The optional 1700F00 cabinet is the basic element for all of the cabinets The 1700F02 portable carrying case is an enhanced version of the 1700F00 cabinet as is the 1700F05 side by side rack mount assembly All cabinets are available from your Tektronix representative The portable cabinet 1700F02 is shown in Figure 2 2 Th...

Страница 45: ... Cabinet Installation Secure the waveform monitor in a cabinet using two Trox T 15 screws Figure 2 3 shows the location of these screws on the rear panel CAUTION Do not carry the waveform monitor in a cabinet without installing the rear panel mounting screws Without the mounting screws there is nothing to keep the waveform monitor in its cabinet ...

Страница 46: ...w of the waveform monitor in a 1700F02 cabinet Rack Adapter Installation The optional 1700F05 side by side rack adapter shown in Figure 2 4 consists of two attached cabinets Use it to mount the waveform monitor and another half rack width instrument such as an analog component monitor in a standard 19 inch rack ...

Страница 47: ...n adjust the rack adapter so that the waveform monitor is aligned with other equipment in the rack See Figure 2 4 Front panel alignment holes Mounting holes Mounting holes 43 9 cm 17 3 in 48 2 cm 19 in 13 2 cm 5 3 in Figure 2 4 The 1700F05 rack cabinet holds two instruments ...

Страница 48: ... adapter insert a blank panel 1700F06 or an accessory drawer 1700F07 in the unused section to improve airflow and appearance Figure 2 5 shows the blank panel and drawer 1700F07 utility drawer 1700F06 blank panel 1700F05 sideĆbyĆside rack adapter Figure 2 5 1700F05 cabinet showing utility drawer and blank panel ...

Страница 49: ... All accessible conductive parts are directly connected through the grounding conductor of the power cord to the grounded earthing contact of the power plug WARNING The power input plug must be inserted only in a mating receptacle with a grounding contact where earth ground has been verified by a qualified service person Do not defeat the grounding connection Any interruption of the grounding conn...

Страница 50: ...y indicate that the battery needs to be replaced Operating Environment The following environmental requirements ensure proper operation and long instrument life Operate the waveform monitor where the ambient air temperature is from 0_ C to 40_ C Store the waveform monitor in ambient temperatures from 20_ C to 60_ C After storage at temperatures outside the operating limits allow the chassis to sta...

Страница 51: ...the fan on the rear panel stops working If the CRT blinks turn off the power switch and contact Tektronix for servicing CAUTION DO NOT power off the waveform monitor when doing any of the adjustments described in Section 5 Adjustment Procedures To do so might result in the loss of internally stored adjustment constants In general do not power off the instrument when doing operations Wait for the i...

Страница 52: ...the owner s address name and phone number of a contact person type and serial number of the instrument reason for returning and a complete description of the service required Seal the shipping carton with an industrial stapler or strapping tape Mark the address of the Tektronix Service Center and also your own return address on the shipping carton in two prominent locations Installed Options All o...

Страница 53: ...by pressing any of the front panel function buttons the menu item associated with it appears at the right side of the display To select a bezel menu item press the bezel button associated with the displayed menu item Configure Menu This menu consists of general configuration menu items and operating modes which are changed infrequently If you press and hold the front panel INTEN MENU button the me...

Страница 54: ... There are following three ways to enter into the DIAG CAL mode H Turn on the Power switch on the rear panel while holding down the STANDBY button on the front panel H Press the INTEN MENU button while holding down the 5 th bezel button and then press the EXECUTE bezel button when the DIAG CAL menu appears H Turn on the Power switch on the rear panel when the firmwares have not been downloaded yet...

Страница 55: ...tton STANDBY button to exit INTEN MENU button to exit Figure 2 7 DIAG CAL menu structure To select DIAG CAL menu item press the corresponding bezel button and press the STANDBY button to go back to the previous menu When you select a menu item to run the diagnostic or calibration routine the menu disappears and corresponding screes appears Press the STANDBY button to exit that screen and to restor...

Страница 56: ...Using the Menu 2 16 WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 57: ...rface Figure 2 8 shows the pin assignments and the communication parameters for the RS 232C interface Pin Number 1 2 3 4 5 6 7 8 9 DCD Received line signal detector RXD Received data TXD Transmitted data DTR DTE ready Signal ground DCR DCE ready RTS Request to send CTS Clear to send Not connected Data Connection Baud 9600 pbs Power cycle always Data bits 8 unselectable Stop bits 1 unselectable Par...

Страница 58: ... location specified RECALL This command recalls the instrument settings from the memory location specified Remote Connector The rear panel REMOTE connector is a 15 pin D type female connector that allows low level remote control All the active control lines go to low level by grounding or TTL low level input Low means the function that can be effective when that pin is grounded or becomes TTL low ...

Страница 59: ...en TTL signal level goes from Low to High 2 RGB RGB transcoder becomes available when TTL level goes from High to Low RBG transcoder becomes disabled when TTL level goes from Low to High 3 ONE TWO Option 0A 240M 274M format mode of Option 0C or Interlace mode of Option 0D 2 Line or 2 Field is selected when TTL level goes from High to Low 1 Line or 1 Field is selected when TTL level goes from Low t...

Страница 60: ...e pin 5 information 8 Interlace Segment Frame Progressive 1 See pin 4 information 9 Ground 10 Save Disp Save and Display mode is set to ON when the TTL level goes from High to Low Save and Display mode is set to OFF when the TTL level goes from Low to High 11 Edge The display mode is selected according to the combined status of of pins 12 13 and 14 when the TTL level goes from High to Low Mode Pin...

Страница 61: ...Theory of Operation ...

Страница 62: ......

Страница 63: ...mposite NTSC sync and the U200 generates the composite HDTV sync The composite sync signals are input to A10 U200 through the W100 A10 Input board The input 1 48 Gbps serial data is converted into the Y signal 10 bit wide data and the Pb Pr multiplex signal 10 bit wide at a data rate of 74 25 MHz The module also generates the 74 25 MHz clock and the FRAME and CRCE signals The FRAME signal indicate...

Страница 64: ...h LINE SELECT permits the FIFO to write approximately 1 or 2 line data LINE SELECT may be used in Line Select or Lines mode the latter of which cannot display all the liens thus neglecting some of them For this reason the circuit contains a sequencer that automatically updates the line number to be displayed FIFO is a 16 bit wide 2K word FIFO circuit The Y_EVEN 9 0 Y_ODD 9 0 Pb 9 0 Pr 9 0 LINE_NUM...

Страница 65: ...on HISTOGRAM uses the X RAM and Y RAM outputs as the addresses It reads the data that indicated when the control signal indicating the effective data is enabled After adding 1 to that data HISTOGRAM writes the sum into the same address U450 and U460 constitute one pair and U480 and U490 the other Each of these RAMs can address a data rate against up to once for 4 clocks 37 125 MHz While one pair i...

Страница 66: ...e triple buffer VRAM It then sends the data of this RAM to RAM DAC When the front panel s SAVE DISP button is pressed ADDER adds the U585 serial data to the selected data above before sending the result to RAM DAC RAM DAC produces the intensity signal based on the data used in ADDER INTENSITY can be updated by rewriting the data within the internal palette of RAM DAC The main functions are 1 gener...

Страница 67: ...5 V power supplied from Power Supply and sends them to the other boards Power Supply The Power Supply generates the 5 V power supply voltage from the AC line and sends it to the A60 DC DC board and A20 Main board The principal Power switch located on the rear panel controls all power to the waveform monitor including the Power Supply A5 DISPLAY board The A5 DISPLAY board is a VGA driver that drive...

Страница 68: ...Theory of Operation 3 6 WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 69: ...Performance Verification ...

Страница 70: ......

Страница 71: ...form monitor incorporates a diagnostic routines that performs comprehensive instrument testing This routine confirms that the waveform monitor is operating correctly Refer to Diagnostics on page 6 19 for the diagnostic procedures H Performance tests These tests confirm the operation of the items that are marked with an asterisk in the guaranteed items in the operating specifications listed in Sect...

Страница 72: ...o signal from the AUDIO output NTSC TV Generator 1 Tektronix TSG170A or equivalent To provide NTSC test signal source RSĆ232C cable with 25Ćpin DĆtype connectors 2 Male Tektronix part no 174 3882 00 provided with the PSC1125 Signal interconnections between the TSG1001 and PSC1125 50 75W attenuator 2 Minimum loss Tektronix part no 011Ć0057Ć01 Signal interconnection 75W terminator 2 Tektronix part n...

Страница 73: ...ektronix part no 063Ć2986Ćxx provided with the PSC1125 Signal set data to be downĆ loaded to the TSG1001 for tests 1 TSG1001 Signal Library The multall dnl signal set file is included Tektronix part no 063Ć3286Ćxx provided with the PSC1125ĆMF1 or 040Ć1649Ć00 upgrade kit for PSC1125 Signal set data to be downĆ loaded to the TSG1001 for the format mode test of option 0D 1 2 3 4 5 6 7 8 16 15 14 13 1...

Страница 74: ...t download the firmware data to those modules first Refer to Firmware Updates on page 6 9 for the firmware updating procedures To perform tests download the signal set data multi dnl supplied with the floppy disk to the TSG1001 in advance Downloading to the TSG1001 To load the signal set data into the TSG1001 you should install the SDP1000 communication utility COM1000 into a PC The procedures des...

Страница 75: ...ndicates that the download process has completed successfully This test confirms the frequency response The following equipment is required Equipment Required HDTV signal generator TSG1001 and PSC1125 Oscilloscope Two parallel signal cables Two 75 W BNC cables 50 W BNC cable Connections Refer to Figure 4 2 for connections Using the parallel signal cables supplied with the PSC1125 connect between t...

Страница 76: ...on 0B respectively H The Waveform Monitor INPUT CH A Procedure 1 Press and hold the INTEN MENU button and select FACTORY EXECUTE OK 2 Press the DISPLAY CH 1 button and GAIN ON button and then 10 bezel button align the sweep waveform with the graticule 3 Confirm that the amplitude of the sweep waveform is in the range from 696 5 to 703 5 mV and that the accuracy falls within the 0 5 4 Press 1 bezel...

Страница 77: ...m the 4 th marker amplitude is equal to or less than 221 mV 4 Press the DISPLAY CH2 and confirm the 7 th marker amplitude is equal to or less than 221 mV 5 Press the DISPLAY CH3 and confirm the 7 th marker amplitude is equal to or less than 221 mV 6 Press and hold the INTEN MENU button on the front panel and select FILTER FLAT and then press the INTEN MENU button again This test confirms that the ...

Страница 78: ...being made b Press the DIAMOND bezel button and confirm H Diamond display is being made 8 On the TSG1001 front panel press the TIMING SIGNALS button to set the TIMING SIGNAL to BOWTIE 9 Press the DISPLAY BOWTIE VECTOR button and confirm H The LEDs BOWTIE lights H Bowtie waveform is displayed on the screen 10 Press the DISPLAY STATUS button and confirm H The STATUS LED lights H Status display is in...

Страница 79: ...s causes to change the display 18 Select 1 LINE from the menu and press the INTEN MENU button 19 Press the HORIZONTAL MAG button to set it to on and confirm H The waveform is enlarged laterally H The HORIZONTAL MAG LED lights 20 Press the HORIZONTAL MAG button to set it to off 21 Press the CURSOR ON button on the front panel and confirm H The CURSOR menu appears at the far right part of the screen...

Страница 80: ... waveforms overlap 28 Press the SAVE DISP ON button and confirm H The stationary waveform disappears H The SAVE DISP ON LED goes off 29 On the TSG1001 front panel press the SIGNAL SET button twice 30 Press and hold the INTEN MENU button and confirm H The MENU can be selected by turning the SELECT knob 31 Press the INTEN MENU button again Then confirm H The menu disappears H The trace moves left an...

Страница 81: ...he test hookup and equipment controls from the previous test 1 Download the multall dnl signal set file supplied on the TG1001 Signal Library floppy disk with part number 063 3286 xx to the TSG1001 Refer to Downloading to the TSG1001 on page 4 4 for instructions 1 On the TSG1001 front panel press the COLOR BARS button to set the COLOR BARS to 75 2 Set the format mode to i interlace 3 Press the SWE...

Страница 82: ...following equipment is required Equipment Required HDTV Signal Generator TSG1001 and PSC1125 Oscilloscope Two parallel signal cables Three 75 W BNC cables Two BNC T connectors Two 75 W terminators Connections Refer to Figure 4 3 for connections Using the parallel signal cables supplied with the PSC1125 connect between the G Y on the TSG1001 and Y on the PSC1125 and between the B Pb on the TSG1001 ...

Страница 83: ...ble TDS540B CH1 CH2 75 W BNC cable BNC T connector and 75 W terminator Figure 4 3 Analog output test initial hookup Initial Setups H TSG1001 FORMAT SMPTE 274M 60Hz for Option 0A SMPTE 296M for Option 0B COLOR BARS 100 COLOR BARS H The Waveform Monitor INPUT CH A H Oscilloscope Waveform CH1 Vertical scale 10 mV div Vertical offset 0 V Vertical position Center Horizontal scale 10 ms div Trigger mode...

Страница 84: ...vel is 350 mV 7 mV 8 Press the TIMING SIGNALS button on the TSG1001 front panel to set the TIMING SIGNALS to BOWTIE 9 Change the oscilloscope settings to Waveform CH1 and CH2 Vertical scale 100 mV div for CH1 100 mV div for CH2 Vertical offset 0 V for CH1 and CH2 Horizontal scale 1 ms div Record length 5000 points 10 Press the MATH REF button on the oscilloscope front panel and then press the main...

Страница 85: ...e AUDIO output This test can be skipped in case of Option 0B or 296M format mode of Option 0C The following equipment is required Equipment Required HDTV Signal Generator TSG1001 and PSC1125 Oscilloscope Digital Audio Monitor Two parallel signal cables Three 75 W BNC cables BNC T connector Two 75 W terminators Connections Refer to Figure 4 4 for connections Using the parallel signal cables supplie...

Страница 86: ...75 W BNC cable Parallel signal cable Parallel signal cable TDS540B CH1 75 W BNC cable BNC T connector and 75 W terminator Figure 4 4 Audio output test initial hookup Initial Setups H TSG1001 FORMAT SMPTE 274M 60Hz for Option 0A SMPTE 296M for Option 0B SWEEP 100 H The Waveform Monitor INPUT CH A H Oscilloscope Waveform CH1 Vertical scale 200 mV div Vertical offset 0 V Vertical position Center Hori...

Страница 87: ...oscilloscope 7 Change the connections to as follows a Connect the AUDIO CHA and AUDIO CHB outputs from the waveform monitor rear panel to the digital audio monitor CH1 2 AUDIO and CH3 4 AUDIO BNC inputs respectively using the 75 W BNC cables b Terminate the other side of the loop through to the CH1 2 AUDIO and CH3 4 AUDIO input with the 75 W terminators 8 On the digital audio monitor front panel p...

Страница 88: ...1001 and Y on the PSC1125 and between the B Pb on the TSG1001 and PB PR on the PSC1125 Using the 75 W BNC cable connect the OUT1 connector on the PSC1125 rear panel to the CH A connector on the waveform monitor rear panel Connect the ANALOG OUT Y output on the waveform monitor rear panel to one side of the EXT REF input on the waveform monitor rear panel using the 75 W BNC cable Terminate the othe...

Страница 89: ...front panel to display the Configure menu and then select EXT REFERENCE NTSC from the menu 5 Confirm that the field rate readout at the right upper corner on the screen indicates 59 94 Hz and the waveform is not locked This test confirms that the remote operation is functioning correctly The following equipment is required Equipment Required HDTV signal generator TSG1001 and PSC1125 Two parallel s...

Страница 90: ...m monitor rear panel 75 W BNC cable Parallel signal cable Parallel signal cable DĆtype ground closure Figure 4 6 External reference test initial hookup Initial Setups H TSG1001 FORMAT SMPTE 274M 60Hz for Option 0A SMPTE 296M for Option 0B SWEEP 100 H The Waveform Monitor INPUT CH A 1 Open all dip switches on the ground closure 2 Close SW15 and confirm H The INPUT B LED lights 3 Open SW15 H The INP...

Страница 91: ... The display changes to PARADE 12 Close SW12 13 Open SW11 14 Close pin 11 H The display changes to CH1 15 Close SW10 H The SAVE DISP LED lights 16 Open SW10 H The SAVE DISP LED goes out 17 Close SW1 H The display changes to 1FIELD 18 Close SW3 H The display changes to 2FIELD 19 Open SW3 20 Open SW1 H The display changes to 1LINE resulting in the Y signal being displayed 21 Close SW2 ...

Страница 92: ...SET 3 OK 25 Press the OVERLAY PARADE button and select SAVE PRESET 4 OK 26 Close SW5 H The CH2 LED lights 27 Close SW7 H The CH1 LED lights 28 Open pin 5 of D type H The CH3 LED lights 29 Open SW7 H The CH1 CH2 CH3 and PARADE LED light 30 Close SW6 31 Open SW6 32 Close SW7 H The CH3 LED lights 33 Open SW7 H The CH1 LED lights The following procedures are only needed for checking the format mode of...

Страница 93: ...onnect between the G Y on the TSG1001 and Y on the PSC1125 and between the B Pb on the TSG1001 and PB PR on the PSC1125 Using the 75 W BNC cable connect the OUT1 connector on the PSC1125 rear panel to the CH A connector on the waveform monitor rear panel Attach the SMA to BNC adapters to the CH1 connector and TRIGGER DIRECT INPUT connector on the oscilloscope Attach the 75 to 50 W minimum loss pad...

Страница 94: ...C cable 50 W BNC cable Sampling Oscilloscope 75ĆtoĆ50 W minimumĆloss pad SMA to BNC adapter 75ĆtoĆ50 W minimumĆloss pad SMA to BNC adapter Figure 4 7 Monitor output test initial hookup Initial Setups H TSG1001 FORMAT SMPTE 274M 60Hz for Option 0A SMPTE 296M for Option 0B SWEEP 100 H The Waveform Monitor INPUT CH A H Oscilloscope Vertical CH1 Vertical scale 100 mV div Vertical coupling AC Vertical ...

Страница 95: ... voltage from MONITOR connector is 800 mV 10 This test confirms that the VGA signal is output correctly The following equipment is required Equipment Required VGA monitor VGA video cable 1 Connect the VGA monitor to the VGA OUTPUT on the waveform monitor rear panel using the VGA video cable 2 Confirm the same view as waveform monitor is displayed on the monitor 1 Press and hold the INTEN MENU butt...

Страница 96: ...Performance Verification 4 26 WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 97: ...Adjustment Procedure ...

Страница 98: ......

Страница 99: ...el and the power supply voltage you need to remove the cabinet Equipment Required Table 5 1 lists the equipment required to adjust the output level and power supply voltage No equipment is required for the display adjustment Table 5 1 Required equipment Item Qty Required precision Recommended equipment Purpose HDTV signal generator 1 Latest modification must be installed Tektronix TSG1001 and PSC1...

Страница 100: ...re you must adjust the timing If brightness and contrast have become unsatisfactory you must adjust the timing To perform the display adjustments you must first remove the enclosure cabinet 1 Disconnect all cables from the waveform monitor and remove the two cabinet mounting screws shown in Figure 5 1 Slide the instrument forward out of the enclosure 2 Place all the variable resistors of the A5 di...

Страница 101: ...rm monitor Figure 5 3 A5 display board view from top of the waveform monitor J310171 and above WARNING To avoid serious injury do not touch exposed connections or components when operating the instrument with the protective enclosure removed Dangerous potentials exist at several points within the waveform monitor Adjustment ...

Страница 102: ... is not available for instruments with serial number J310171 and above Size And Linearity 6 Press the MENU button and then select GRID from the menu The grid pattern crosshatch pattern appears on the screen H Check the distortion of the external frame and the declination from the CRT face and the inclination about the grid pattern No specifications are required a Align the horizontal and vertical ...

Страница 103: ...ole If necessary repeat the above adjustments 10 Press the INTEN MENU button and then STANDBY button twice to exit from the DIAG CAL menu Output Adjustment To perform the output adjustments you must first remove the enclosure cabinet For removing the enclosure refer to Preparation on page 5 2 To perform the output adjustments you also must download the signal set data supplied with the floppy disk...

Страница 104: ...ed Dangerous potentials exist at several points within the waveform monitor Connections Connect ANALOG OUT Y connector on the waveform monitor rear panel to the oscilloscope CH1 input using the 75 W BNC cable and the BNC T connector Connect ANALOG OUT Pb connector on the waveform monitor rear panel to the oscilloscope CH2 input using the other 75 W BNC cable and the other BNC T connector Terminate...

Страница 105: ...and adjust the A10 R502 to align the 700 mV level with the center graticule on the oscilloscope 4 Change the oscilloscope vertical offset to 0 V 5 If the 0 mV level is within 0 5 divisions from the center graticule go to the next step If not so go back step 1 6 Change the oscilloscope waveform to CH1 off waveform to CH2 and vertical offset to 350 mV 7 Align the 350 mV level of the signal with the ...

Страница 106: ...tons in the following order to create a Math waveform Change Math waveform definition Dual Wfm Math Set 1st Source to Ch1 Set operator to Set 2nd Source to Ch2 15 Change the oscilloscope settings to Waveform CH1 and CH2 to Off Zoom On Vertical scale 100 mV div 5 0 X Vert for Math1 Horizontal scale 5 ms div 0 2X Horz 16 Observe the Bowtie display on the oscilloscope and verify and adjust the A10 DL...

Страница 107: ...GNALS to BOWTIE 27 Change the oscilloscope settings to Waveform CH1 and CH2 Vertical scale 100 mV div for CH1 100 mV div for CH2 Vertical offset 0 V for CH1 and CH2 Horizontal scale 1 ms div Record length 5000 points 28 Press the MATH REF button on the oscilloscope front panel and then press the main and side menu buttons in the following order to create a Math waveform Change Math waveform defini...

Страница 108: ...gger mode EDGE Trigger Source CH1 Trigger Level 140 mV Procedure 1 Align the 0 mV level of the displayed signal with the center graticule on the oscilloscope 2 Using the oscilloscope measurement function perform the amplitude measurement 3 Verify and adjust the A10 R166 so that the amplitude is 1 00 V 4 Change the BNC cable from the AUDIO CHA connector to the AUDIO CHB connector 5 Align the 0 mV l...

Страница 109: ... cabinet For removing the enclosure refer to Preparation on page 5 2 After you have remove the enclosure cabinet find the test points on the A40 CPU board and the variable resistor on the Power Supply module See Figures 5 5 and 5 6 A40 CPU Board J140 J100 J120 J130 Front TP101 GND TP110 VCC U140 U130 Figure 5 5 A40 CPU board view and test points Preparations ...

Страница 110: ...ury do not touch exposed connections or components when operating the instrument with the protective enclosure removed Dangerous potentials exist at several points within the waveform monitor Initial Setups Oscilloscope Waveform CH1 Vertical scale 200 mV div Vertical Offset 5 V Vertical Position Center Horizontal Scale 1 ms div Bandwidth 20 MHz Adjustment ...

Страница 111: ...cate the test points TP101 and TP110 on the A40 CPU board See Figure 5 5 5 Locate the variable resistor VR501 on the Power Supply module See Figure 5 6 6 Adjust the voltage a Connect the grand lead of the probe to the TP101 GND and the probe tip to the TP110 VCC b Turn the VR501 clockwise or counterclockwise to align the trace with the center graticule on the oscilloscope If necessary change the v...

Страница 112: ...Adjustment Procedures 5 14 WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 113: ...Maintenance ...

Страница 114: ......

Страница 115: ... Included is diagnostics and troubleshooting trees Use troubleshoot ing trees if the faulty module could not be isolated in the diagnostic procedures Related Maintenance Procedures The following sections contain information and procedures related to mainte nance H Section 2 Operating Information covers instructions useful when operating the waveform monitor in order to troubleshoot it H Section 3 ...

Страница 116: ...ive modules 2 Transport and store static sensitive modules in their static protected containers or on a metal rail Label any package that contains static sensitive modules 3 Discharge the static voltage from your body by wearing a grounded antistatic wrist strap while handling these modules Do service of static sensitive modules only at a static free work station 4 Nothing capable of generating or...

Страница 117: ... and damage It also describes how to clean the exterior and interior of the WFM 1125 Digital Television Waveform Monitor Option 0A 0B 0C 0D Inspection and cleaning are done as preventive maintenance Preventive maintenance when done regularly may prevent instrument malfunction and enhance its reliability Preventive maintenance consists of visually inspecting and cleaning the instrument and using ge...

Страница 118: ... be checked thoroughly to verify correct operation and performance Immediately repair defects that could cause personal injury or lead to further damage to the instrument Table 6 2 External inspection check list Item Inspect for Repair action Cabinet front panel and cover Cracks scratches deformations damaged hardware or gaskets Repair or replace defective module FrontĆpanel knobs Missing damaged ...

Страница 119: ...nt damage from electrical arcing ensure that circuit boards and components are dry before applying power to the waveform monitor Table 6 3 Internal Inspection check list Item Inspect for Repair action Circuit boards Loose broken or corroded solder connections Burned circuit boards Burned broken or cracked circuitĆrun plating Remove failed module and replace with a fresh module Resistors Burned cra...

Страница 120: ...ed water A cotton tipped applicator is useful for cleaning in narrow spaces and on circuit boards STOP If after doing steps 1 and 2 a module is clean upon inspection skip the remaining steps 3 If steps 1 and 2 do not remove all the dust or dirt the instrument may be spray washed using a solution of 75 isopropyl alcohol by doing steps 4 through 8 4 Gain access to the parts to be cleaned by removing...

Страница 121: ...WFM 1125 Option 0A 0B 0C 0D Service Manual 6 7 Removal and Installation Procedures The procedures for removal and installation are not provided in this manual ...

Страница 122: ...Removal and Installation Procedures 6 8 WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 123: ...oad the firmware Preparation The equipments listed in Table 6 4 are required Table 6 4 Required equipment Item Qty Required precision Recommended equipment Purpose Cable with 9Ćpin DĆtype connector 1 9Ćpin Dtype male to 9Ćpin Dtype female Custom see Figure 6 1 Downloading the firmware PC 1 IBM PC compatible with MSĆDOS 3 1 or above Firmware floppy disks 2 Tektronix part no 063Ć3174ĆXX Option 0A 0B...

Страница 124: ...0 and A10U200 i e to program FPGA TRANCE TTF When color SMPTE 240M and resol d rng RESOLUĆ TION TRANCE9 TTF When color SMPTE 240M and resol d rng D RANGE CCIR TTF When color SMPTE 274M and resol d rng RESOLUĆ TION CCIR9 TTF When color SMPTE 274M and resol d rng D RANGE 10K10 config files Used to configure A20U100 A20U250 A20U350 A20U430 A20U470 A20U500 and A20U580 i e to program FPGA LINES1 TTF Fo...

Страница 125: ...or bar VEC100X5 Vector display 100 Color bar with 5x Gain VEC100XA Vector display 100 Color bar with 10x Gain VEC75X1 Vector display 75 Color bar VEC75X5 Vector display 75 Color bar with 5x Gain VEC75XA Vector display 75 Color bar with 10x Gain Y table Loaded to A20U410 NORM1 Normal scale NORM5 Normal scale with 5x Gain NORM10 Normal scale with 10x Gain WIDE1 Wide scale WIDE5 Wide scale with 5x Ga...

Страница 126: ...sing of the Horizontal Mag button except in the Line Select mode FL_ _RE TXT Other than above MENU Interpo ON MENU Filter LPF LP_ _LI TXT Non field mode in Line Select mode LP_ _HM TXT When HMag is displayed in response to the pressing of the Horizontal Mag button except in the Line Select mode LP_ _RE TXT Other than above ULP_Y_RE TXT For Diamond display 063 3250 XX Codes APPLI HEX 68K code Utili...

Страница 127: ...wtie display DIAMOND TTF For Diamond display LIGHTEN TTF For Lightning display X table Loaded to A20U425 1F_1125 1 field display 1125 lines 1F_750 1 field display 750 lines 1L_1125 1 line display 1125 lines 1L_750 1 line display 750 lines 1LH 1 line display and H mag 1LS_1125 1 line select display 1125 lines 1LS_750 1 line select display 750 lines 1LSH 1 line display line select and H mag 2LH_24 2...

Страница 128: ...able Loaded to A20U410 NORM1 Normal scale NORM5 Normal scale with 5x Gain NORM10 Normal scale with 10x Gain WIDE1 Wide scale WIDE5 Wide scale with 5x Gain WIDE10 Wide scale with 10x Gain VEC100Y1 Vector display 100 Color bar VEC100Y5 Vector display 100 Color bar with 5x Gain VEC100YA Vector display 100 Color bar with 10x Gain VEC75Y1 Vector display 75 Color bar VEC75Y5 Vector display 75 Color bar ...

Страница 129: ... FL_ _RE TXT Other than above MENU Interpo ON MENU Filter LPF LP_ _LI TXT Non field mode in Line Select mode LP_ _HM TXT When HMag is displayed in response to the pressing of the Horizontal Mag button except in the Line Select mode LP_ _RE TXT Other than above ULP_Y_RE TXT For Diamond display Update Procedure Update procedures compose of four main processes H Uncompressing the download files H Dow...

Страница 130: ...ontinue are displayed according to the messages insert the disk and press any key When the uncompressing process completes MS DOS prompt is displayed 7 Remove WFM1125 op 0C or op 0D Disk 2 from the floppy disk drive on the PC Do the following steps to download the uncompressed files to the waveform monitor 1 Connect the RS 232C connector on the waveform monitor and the RS 232C connector on the PC ...

Страница 131: ...ed in about 20 min for Option 0A and Option 0B or 30 min for Option 0C and Option 0D After the download has been finished the download program exit automatically Press and hold the INTEN MENU button on the front panel to the Configure menu Turn the SELECT knob to select the FACTORY EXECUTE and press OK bezel button to reset factory settings NOTE Be sure to reset the waveform monitor to factory set...

Страница 132: ... Updates 6 18 WFM 1125 Option 0A 0B 0C 0D Service Manual After you download the firmware perform the performance verification procedures described in Section 4 Performance Verification Performance Verification ...

Страница 133: ... bezel button to enter into the DIAG CAL menu 3 Press DIAG CAL bezel button Check the front panel buttons knobs and LEDs Buttons and knobs 4 Select KEY KNOB from the menu a When you press a button on the front panel except for the third bezel button the name associated with the button is displayed on lower part of the CRT Press all the front panel buttons except for the third bezel button and conf...

Страница 134: ... error information on the screen 10 Press INTEN MENU button on the front panel 11 Select PLD from the menu to run the following PLD tests H 10K30 configuration test H 10K10 configuration test H 8K configuration test Confirm that the PASS is displayed in all the PLD tests If error is detected the FAIL is displayed together with error information on the screen 12 Press INTEN MENU button on the front...

Страница 135: ... signal to the CH A or CH B connector on the rear panel 16 Select HK102 HK202 FIFO from the menu to run the following test H HK 102 HK 202 and FIFO functional test Confirm that the PASS is displayed in this test If error is detected the FAIL is displayed together with error information on the screen 17 Press INTEN MENU button on the front panel 18 Press STANDBY button twice to exit from the DIAG C...

Страница 136: ... Start Yes No CRT non luminous Yes No LEDs non luminous Yes No CRT blinks Yes No CRT full white display Yes No Graticules displayed Yes No To E page 6 30 Yes No Fan down Replace Fan To A page 6 23 No waveform displayed No Yes Low quality of waveform displayed To B page 6 25 To C page 6 26 To D page 6 28 ...

Страница 137: ...ervice Manual 6 23 Negative terminal of A60 C120 at 15 1 V See Figure 6 2 Positive terminal of A60 C130 at 5 0 5 V See Figure 6 2 Replace A5 board A Replace A60 board Yes Yes Yes No Positive terminal of A60 C100 at 12 5 0 5 V See Figure 6 2 No No ...

Страница 138: ...Troubleshooting 6 24 WFM 1125 Option 0A 0B 0C 0D Service Manual C100 C130 C120 Positive terminal of C100 Positive terminal of C130 Negative terminal of C120 Figure 6 2 A60 DCĆDC board view from top ...

Страница 139: ...oard Yes No Can Version No be read Yes No Output with CONFIG ERR Yes No Graticules displayed Retry download Replace A20 board Retry download Connect to external monitor Replace A5 board Replace A20 board Fixed Yes No OK B Fixed Yes No OK Replace A40 CPU board Fixed Yes No OK Give up ...

Страница 140: ...vice Manual No SIGNAL is displayed Replace A20 board C No Yes A20 U110Ć2 at 37 125 MHz See Figure 6 3 Remove W000 and Connect CHA to input of HKĆ102 HKĆ202 directly No Replace A10 board Replace A15 board A20 U110Ć2 at 37 125 MHz See Figure 6 3 No Yes Yes ...

Страница 141: ...Troubleshooting WFM 1125 Option 0A 0B 0C 0D Service Manual 6 27 U110Ć2 U110 2nd pin J100 J110 Figure 6 3 A20 Main board view from top ...

Страница 142: ...Y_ODD PB and PR of A20J110 or J100 stacked in certain location See Figure 6 3 and 6 4 Replace A20 board No Intense flicker No Yes Frequency response abnormal No Yes Does frequency response differ from that of normal WFM in STATUS mode No Replace A10 board For 90 or more replace A10 board For 10 replace A20 board Yes Yes ...

Страница 143: ...V U100 J100 D_VD FIFO_WE CLK_SEL LINE_NUMN NEWLINEN DFRAME SONY_RSTN FD 23 1 FD 7 1 HK1025TRB SONY_WRTN SONY_RDN SLOW_CLK STOP RESETA20 P3 3V P1 2V P3 3V P1 2V VCC J110 Y_EVEN 9 0 Y_ODD 9 0 PB 9 0 RELAY CRCE A10REGN PR 9 1 STOP_CLK GND CLK37M FIFO_CLK Figure 6 4 J100 and J110 connector pin configurations ...

Страница 144: ...roubleshooting 6 30 WFM 1125 Option 0A 0B 0C 0D Service Manual Analog outputs are correct E No Yes No OK Replace A10 or A15 board Yes Yes No Replace A10 board Audio outputs are correct EXT REF is correct ...

Страница 145: ...Options ...

Страница 146: ......

Страница 147: ... 60p and 720 59 94p Option 0C Description This option supports the following system formats 1035 60i 1035 59 94i 1080 60i 1080 59 94i 720 60p and 720 59 94p Option 0D Description This option supports the following system formats 1035 60i 1035 59 94i 1080 60i 1080 59 94i 1080 50i 720 60p 720 59 94p 1080 30sF 1080 29 97sF 1080 25sF 1080 24sF 1080 23 98sF 1080 24p and 1080 23 98p Accessories The wave...

Страница 148: ...t is made of durable metal and painted silver gray Ventilating holes in the top bottom and sides of the cabinet help dissipate heat 1700F02 Carrying Case This portable cabinet is similar to the 1700F00 but it has rubber feet a carrying handle a flipstand and a front cover 1700F05 SideĆbyĆSide Rack Adapter The 1700F05 allows you to mount two half rack width instruments in a standard 19 inch rack 17...

Страница 149: ...Electrical Parts List ...

Страница 150: ......

Страница 151: ...l Parts List The modules that make up this instrument are often a combination of mechanical and electrical subparts Therefore all replaceable modules are listed in Section 10 Mechanical Parts List Refer to that section for part numbers when using this manual ...

Страница 152: ...Electrical Parts List 8 2 WFM 1125 Option 0A 0B 0C 0D Service Manual ...

Страница 153: ...Diagrams ...

Страница 154: ......

Страница 155: ...ontains the block diagram and the interconnection diagram for the WFM 1125 Digital Television Waveform Monitor Option 0A 0B 0C 0D Symbols Graphic symbols and class designation letters are based on ANSI Standard Y32 2 1975 Abbreviations are based on ANSI Y1 1 1972 ...

Страница 156: ... Board J700 A60 DCĆDC Board 20 J820 J820 26 J1 J390 20 8 J100 CRT 7 J4 Yoke 4 VGA OUTPUT J450 Fan 2 DISPLAY Board J802 CRT Anode AC Power Supply J800 J840 4 4 J2 W100 W110 W810 W700 Noise Filter Power Switch A5 W230 W220 W800 W030 W840 W820 W130 W210 W000 W020 W022 W014 J170 AUDIO A J190 J180 J400 J402 J442 AUDIO B Y Pb Pr CRCE OUT W260 W320 W310 W300 W270 W280 A15 Relay Sync Board 16 W100 J120 W2...

Страница 157: ...ard A60 DCĆDC Board CRT 7 Yoke EXTERNAL VGA OUTPUT Fan DISPLAY Board AC Power Supply Noise Filter Power Switch A5 Front Panel Switches Front Panel LEDS CPU U100 ROM U140 FLASH ROM U170 U180 U190 U200 DEMUX CHANNEL SELECTOR See Figure 9 3 for more detail RAM U150 U160 DECODER U130 A20 BUFFER AUDIO A AUDIO B Y Pb Pr SYNC SEPARATOR A15 Relay Sync Board EXT REF D A D A D A Figure 9 2 Block diagram ...

Страница 158: ...FIFO U150 U170 U186 U188 DOUBLER U155 U175 TRANSCODER U200 OFFSET U250 INTERPOLATE U260 U270 U280 CONTROLLER U350 ADDRESS GENERATOR U430 HISTOGRAM VARIABLE PERSISTENCE U500 U510 U520 VRAM U530 U565 U570 U575 U585 U555 U550 ADDER U600 U650 U700 J390 J450 Y RAM U410 X RAM U425 Figure 9 3 A20 Main board block diagram ...

Страница 159: ...Mechanical Parts List ...

Страница 160: ......

Страница 161: ...nstrument serial number H Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concerning any change in part number Modules can be serviced by selecting one of the following three options Contact your local Tektronix service center or representative for repair a...

Страница 162: ... four indicates the serial number at which the part was discontinued No entries indicates the part is good for all serial numbers 5 Qty This indicates the quantity of parts used 6 Name Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name iden...

Страница 163: ... SYSTEMS INC 3151 JAY ST SANTA CLARA CA 95054 54972 CLINTON ELECTRONICS CORP 6701 CLINTON RD ROCKFORD IL 61111 3863 73743 FISCHER SPECIAL MFG CO 111 INDUSTRIAL RD COLD SPRING KY 41076 9749 7X318 KASO PLASTICS INC 11013 A NE 39TH VANCOUVER WA 98662 80009 TEKTRONIX INC 14150 SW KARL BRAUN DR PO BOX 500 BEAVERTON OR 97077 0001 80126 PACIFIC ELECTRICORD CO 747 W REDONDO BEACH PO BOX 10 GARDENA CA 9024...

Страница 164: ...ER 80009 2110871XX 11 211 0941 XX 2 SCREW MACHINE M3X6MM L FLH STL MFZN C CROSS REC W WASHER 80009 2110941XX 12 220 0208 XX 2 NUT PLAIN HEX M3 X 7MM HEX SST 3 SHU 80009 2200208XX 13 220 0209 XX 4 NUT PLAIN HEX M4 ASSEM WA 80009 2200209XX 14 334 3379 XX 1 MARKER IDENT MARKED GROUND SYMBOLSAFETY CONTROLLED 22670 ORDER BY DESC 17 342ĆA139 XX 1 INSULATOR PLATE POLYCARBONATE 80009 342A139XX 18 333 4293...

Страница 165: ... 80009 6714603XX 45 671 4604 XX 1 CIRCUIT BD ASSY A40 CPU 389 A848 XX OPTION 0A 80009 6714604XX 671 4754 XX 1 CIRCUIT BD ASSY A40 CPU 389 A848 XX OPTION 0B 80009 6714754XX 671 4755 XX 1 CIRCUIT BD ASSY A40 CPU 389 A848 XX OPTION 0C 80009 6714755XX 671 5008 XX 1 CIRCUIT BD ASSY A40 CPU 389 A848 XX OPTION 0D 80009 6715008XX 46 671 4292 XX 1 CIRCUIT BD ASSY A60 DC DC 389 A697 XX WIRED 80009 6714292XX...

Страница 166: ...umĆ ber Mfr Part NumĆ ber Mfr Code Name Description Qty Serial No Discont d Serial No Effective Tektronix Part Number 59 119 5994 XX CRT Unit 80009 1195994XX 1 CIRCUIT BD ASSY A5 DISPLAY 1 CRT 1 DEFLECTION YOKE 60 276 A017 XX 1 CORE EM FERRITE 80009 276A017XX 61 348 A116 XX 68 CM GASKET SHIELD 80009 348A116XX ...

Страница 167: ...3 51 46 43 50 45 42 48 57 7 41 14 33 34 27 A20 MAIN A5 DISPLAY A10 INPUT HKĆ102 HKĆ202 A40 CPU A60 DCĆDC POWER SUPPLY A30 FRONT PANEL 49 on A40 CPU board 52 6 24 32 31 19 23 36 12 4 11 2 44 10 26 59 10 A15 RELAY SYNC 47 55 56 25 55 29 17 40 60 40 61 58 Figure 10 1 WFMĂ1125 Digital Television Waveform Monitor Option 0A 0B 0C 0D exploded view ...

Страница 168: ...10 8 WFM 1125 Option 0A 0B 0C 0D Service Manual Please cut away this area below the lines ...

Страница 169: ...40 174 4029 XX CABLE ASSY RF 75 OHM COAX RG179 10CM L BNC 80009 1744029XX W250 174 4029 XX CABLE ASSY RF 75 OHM COAX RG179 10CM L BNC 80009 1744029XX W260 174 3852 XX CA ASSY RF 50 OHM COAX 300MM L GRAY 80009 1743852XX W270 174 4027 XX CABLE ASSY RF 75 OHM COAX 20CM L BLACK 80009 1744027XX W280 174 4027 XX CABLE ASSY RF 75 OHM COAX 20CM L BLACK 80009 1744027XX W300 174 4028 XX CABLE ASSY RF 75 OHM...

Страница 170: ... 2 5M L BLACK STANDARD ONLY 80126 C7120 25M BL OPTIONAL ACCESSORIES 200 3897 XX 1 FRONT PANEL COVER 80009 2003897XX 1 PLAIN CASE 1700F00 1 PTD CASE ASSY 1700F02 1 RACK ADAPTER SIDE BY SIDE 1700F05 1 FILLER PANEL 1700F06 1 DRAWER UTILITY 1700F07 FOR JUST SERVICING 071 0455 XX 1 MANUAL TECH SERVICE 80009 0710455XX 063 3174 XX A 3 5 DISK WFM1125 LOAD MODULE ARCHIVES FOR OPTION 0A 0B 0C 80009 0633174X...

Страница 171: ......

Страница 172: ......

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