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Service Manual WFM 601A, WFM 601E, & WFM 601M Serial Digital Component Waveform Monitor 070-9836-05 This document applies to firmware version 1.00 and above. 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.
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Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077...
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Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.
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Figure 6–22: Location of the line fuse on Power Supply board ..6–26 Figure 6–23: Configuration to troubleshoot the DAC board ..6–33 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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..10–10 Figure 10–4: Rear panel and Fan exploded view ....10–12 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Table of Contents WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Symbols and Terms Terms in this Manual. These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CAUTION indicates a hazard to property including the product. Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION Double High Voltage (Earth) Terminal Refer to Manual Insulated WFM 601A, WFM 601E, & WFM 601M Service Manual...
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To avoid electric shock, do not touch exposed connections. X-Radiation. To avoid x-radiation exposure, do not modify or otherwise alter the high-voltage circuitry or the CRT enclosure. X-ray emissions generated within this product have been sufficiently shielded. WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Service Safety Summary WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Preface This manual provides servicing information for the WFM 601A, WFM 601E, and WFM 601M Serial Digital Component Waveform Monitors. Procedures described in this manual are designed for experienced service technicians. For detailed operating information, refer to your waveform monitor User manual.
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Replaceable Mechanical Parts provides a list of all mechanical parts and electrical modules not contained on a circuit board. Tektronix Service Tektronix maintains a service organization that provides a number of services to Offerings help you maintain the waveform monitor at its specified levels. These services range from complete repair and adjustment, at a convenient location, to supplying replacement parts.
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If a part has been replaced with a new or improved part, the new part will be shipped, if it is a direct replacement. If not directly replaceable the local Tektronix field office or representative will contact the customer concerning any changes. After any repair, circuit readjustment may be required.
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This phone number is toll free in North America. After office hours, please leave a voice mail message. Outside North America, contact a Tektronix sales office or distributor; see the Tektronix web site for a list of offices. WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Specifications This section provides a brief overview of the WFM 601A, WFM 601E, and WFM 601M waveform monitor product features. The feature list is followed by the product specifications. Product Description The waveform monitors measure and display 4:2:2 component serial digital signals.
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0 C to +40 C. The rated accuracies are valid when the instrument is calibrated at an ambient temperature range of +20 C to +30 C, after a warm-up time of 20 minutes. 1–2 WFM 601A, WFM 601E, & WFM 601M Service Manual...
25 dB 1–270 MHz, channels on or off Power off 15 dB 1–270 MHz Insertion Loss Transmission Bandwidth 50 kHz – 300 MHz 1.0 dB –3 dB at not less than 500 MHz 1–3 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Up to 3 dB jitter gain from 2–4 kHz Display Modes Overlay Overlays bits 0-9 of a serial word to form each Eye opening 10-Eye Parades bits 0-9 in a 10-Eye display 1–4 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Jitter Waveform (WFM 601M) Accuracy Dynamic Range 10 UI p-p Deflection Factor Horizontal Four modes available: 1 Line, 2 Line 1 Field, 2 Field Vertical 1 UI/div 0.2 UI/div 0.1 UI/div 1–5 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Indicates if any of the 10 data bits are always high or low during the active picture for an entire field. Line Rate Indicates whether the signal is 525 or 625 line. 1–6 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Maximum Operating Input Voltage –1.8 V to +2.2 V, DC plus peak AC Absolute Maximum Input Voltage –8.5 V to +8.5 V, DC plus peak AC DC Input Impedance 20 k 1–7 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Electronic Graticule Shape Minimal visible gaps or tails at corners of target boxes Vector Display is displayed on horizontal axis and P displayed on vertical axis. 1–8 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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2% for RGB mode (Y-P mode) Black (Blanking) Output Level 0 mV 35 mV (WFM 601M) Frequency Response Y to 5.75 MHz: (WFM 601M) and P to 2.75 MHz: Non-Linearity (WFM 601M) 0.5% 1–9 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Continuous range from 90 to 250 VAC Supply Type Single Phase Supply Connection Detachable cord set Power Consumption < 115 VA (75 watts) Peak Inrush Current 8.4A @ 90 VAC, 26A @ 250 VAC Environment 1–10 WFM 601A, WFM 601E, & WFM 601M Service Manual...
EN61010-1 - Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use Additional Compliance UL3111-1 - Standard for Electrical Measuring and Test Equipment IEC1010-1 - Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use 1–11 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Signal levels in special equipment or parts of equipment, telecommunications, electronics Pollution Degree Pollution Degree 2: Do not operate in environments where conductive pollutants may be present. Note: Rated for indoor use only. 1–12 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Safety requirements for electrical equipment for measurement, control, and laboratory use Use high-quality shielded cables. When installed in any of the following Tektronix instrument enclosures: 1700F00 (Tektronix part number 437–0100–04) 1700F02 (Tektronix part number 437–0018–07) 1700F05 (Tektronix part number 437–0095–04) 1–13...
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Installation This section describes how to install and operate the WFM 601A, WFM 601E, and WFM 601M Serial Digital Component Waveform Monitors. It also describes how to remove the waveform monitors for servicing. Note that repackaging information is located at the end of the Maintenance section.
1700F05 side-by-side rack mount cabinet. All cabinets are available from your Tektronix representative. 21 cm (8.25 in) 42.7 cm (16.2 in) 13 cm (5.1 in) Figure 2–1: Dimensions of the 1700F00 cabinet 2–2 WFM 601A, WFM 601E, & WFM 601M Service Manual...
The mounting hole sizes and spacing are different from those of the 1700F00. 21 cm (8.25 in) 42.7 cm (16.2 in) 13 cm (5.1 in) Figure 2–2: 1700F02 portable cabinet 2–3 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Without the mounting screws, there is nothing to keep the waveform monitor in its cabinet. Cabinet securing screws Figure 2–3: Rear view of the waveform monitor in a 1700F00 cabinet 2–4 WFM 601A, WFM 601E, & WFM 601M Service Manual...
1700F06 Figure 2–5: 1700F05 cabinet showing utility drawer and blank panel Repackaging for To ship the waveform monitor to a Tektronix Service Center for service, use the Shipment following instructions: 1. Attach a tag to the waveform monitor showing the name of the owner, the complete address, the phone number, the instrument serial number and a description of the required service.
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75 W. Refer to the Specifications section for additional information on power and environmental requirements. Rear-Panel Connectors For information on the rear panel connectors, refer to page 2–13. 2–7 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Front Panel Overview Figure 2–6 shows the front panel of the WFM 601M waveform monitor. The front panels for the WFM 601A and WFM 601E waveform monitors are similar. A brief discussion of each front-panel feature follows the illustration. Features that are unique to one or two waveform monitor(s) are indicated in the discus- sions.
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WAVEFORM. Displays the video signal as voltage versus time. Any or all of the three channels can be displayed from a single video line. PARADE. Displays up to three channels of the video signal in succession. 2–10 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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(10 s/division), 1-Field, and 2-Field. Selections are limited in some display modes. MAG. Provides horizontal magnification of waveform signals. Use the Horizontal Position bezel knob to move left or right on through the waveform. 2–11 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Cursor, Filter, or Gain, the last settings are returned. For example, if X5 was active when you last used the Gain menu, returning to the Gain menu restores X5 gain. 2–12 WFM 601A, WFM 601E, & WFM 601M Service Manual...
The waveform monitors operate from an AC line frequency of 50 and 60 Hz, over the range of 90–250 VAC, without the need for configuration. Refer to the Specifications section of this manual for additional information on power and environmental requirements. 2–13 WFM 601A, WFM 601E, & WFM 601M Service Manual...
GBR. Invalid input signals cause a blinking highlight of the monitor display at the line where the error occurs. This gamut error highlight or “bright-up” signal is present on the Y (or G) output and is controlled in the CONFIG menu. 2–14 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Line Select Strobe. Pin 15 outputs an active-low TTL pulse during selected lines when in Line Select modes. Use this signal as a trigger for a logic analyzer or oscilloscope. 2–15 WFM 601A, WFM 601E, & WFM 601M Service Manual...
–Time Code Input Not used in the WFM 601E or the WFM 601M Ground TTL ground /Line Strobe In Line Select Modes, true (low) during selected video lines (TTL low) 2–16 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Ground (TTL low) Grounding enables storage of instrument /STORE settings. When transitions low when one of /STORE s is low, the current front-panel /PRESET settings are stored in that Preset location. 2–17 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Operating Information 2–18 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Jitter output. The Peak Detector circuit splits the incoming Jitter signal into two paths: the high-pass peak detector and the raw peak detector. The selected high-pass filter is applied 3–1 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Half Band filter and DAC properly synchronized with the chrominance signals. The coprocessor generates the clock and timing enable signals for the luminance and two color difference Half Band filters and DACs. 3–2 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Horizontal Signal signals from the Line Rate Controller. The microprocessor controls the Sweep ramp times, which are 17 ms for the field sweep and 64 s for the line sweep. Multiplexer 3–3 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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GBR and composite gamut alarm signals. When Amplifiers the signal exceeds the GBR gamut limits, the Monitor output flashes. A gamut inhibit signal causes the 2 Hz blink rate. The Monitor Out display can be either 3–4 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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The Readout State Machine interprets the readout instructions from the micro- processor and loads digital data into two identical DACs. The DACs drive the vertical and horizontal stroke generators to create the readouts displayed on the CRT. 3–5 WFM 601A, WFM 601E, & WFM 601M Service Manual...
40 V 40 V High Voltage Power Supply Low Voltage 11 V Power Supply To all circuits –5.2 V –11 V –2.75 kV 100 V Figure 3–1: Power supply block diagram 3–6 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Low Voltage supply is running. The CRT cathode supply consists of rectifier CR7 and filtering capacitors. The supply provides –2530 V to the CRT cathode. U1 is a four-times multiplier 3–7 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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R10 and R5, which is the summing junction for the amplifier. It is at +5 V . R5 is a feedback resistor, which sets the amplifier gain at 36 V/mA of input current. 3–8 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Performance Verification The procedures in this section verify the performance specifications for the WFM 601A, WFM 601E, and WFM 601M waveform monitors. Procedures that apply to only one model indicate this limitation in their titles. Procedures without such limits in their titles apply to all models. Where a procedure, such as Monitor Out Gain Accuracy, differs greatly between models, different versions of the procedure occur sequentially.
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For example: Two 75 end-line terminations, 26 dB to 300 MHz (Tektronix Part No. 011-0163-00) for use on Serial Inputs. One - 75 , 0.025% accuracy end-line termination (Tektronix Part No. 011-0102-01) for use on the External Reference Input. One - 75 feed-through termination (Tektronix Part No.
For example: – 42-inch (Tektronix Part No. 012-0159-00). 13. One BNC female to female connector. (WFM 601A only) For example: Tektronix Part No. 103-0028-00. 14. Audio Cable Adapter, as shown in Figure 4–1. (WFM 601A only) Function generator Ground Black...
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Vector Horizontal Gain Accuracy 8 major – 0.4 minor div 8 major + 0.4 minor div Vector Vertical Gain Accuracy 700 mV = 9.9 div 700 mV = 10.1 div 4–4 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Serial Receiver Equalization ––– Zero errored seconds with Range up to 19 dB loss at 135 MHz (800 mV source) Certificate number not provided, unless a “Certificate of Traceability” is issued. 4–5 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CHECK – for stable instrument operation over the prescribed voltage range, 90 – 132 V for 110 V, or 180 – 250 V for 220 V. c. Set the autotransformer to the nominal mains voltage. 4–6 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Horizontally center the display, then press the MAG Line/Sweep button to turn on horizontal magnification. c. CHECK – that the center of the trace is displayed with MAG on. 4–7 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CHECK – for one cycle of the calibrator signal per major division 0.5 minor division over the 10 major graticule divisions. Turn on the MAG Sweep. 4–8 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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14 mV (1 minor division equals 20 mV). Connect a 75 coaxial cable, from the waveform monitor rear-panel SERIAL OUT connector through a 75 feed-through termination to the test oscilloscope vertical input. 4–9 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Press the CLEAR MENU button to turn off the readout. u. CHECK – for a calibrator signal display of 700 mV 7 mV. v. Press the CONFIG button, and turn CAL SIG OFF. w. Press the CLEAR MENU button. 4–10 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Time2 cursor to the graticule right cardinal mark. See Figure 4–2. 100% Right Cardinal Mark Left Cardinal Mark –.1 –.2 –.3 TIME 1 TIME 2 TRACK COMPONENT ANALOG 2% & 4% K Figure 4–2: Timing cursors 4–11 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CRT. Place the top of the square pulse on the .7 V graticule line. o. Use the VOLT1 bezel knob to place the cursor on the top line of the square pulse. p. Record the cursor voltage reading. 4–12 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Connect the black burst output from the digital component signal generator to the waveform monitor EXT REF loop-through input. e. Connect the other EXT REF loop-through connector to the 1780/81R Ext Ref input. 4–13 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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P display are matched. r. CHECK – that the CAL read out on the 1780/81 is 693 mV to 707 mV. s. Disconnect the cable from the MON OUT P 4–14 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Performance Verification 11. Monitor Out Gain Accuracy (WFM 601A, WFM 601E only) REQUIREMENT – Active Video Gain: 700 mV To load the factory preset, press the PRESET button, use the bezel knob to pick the FACTORY setting, then press the RECALL bezel button.
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Turn off the serial component generator R–Y output. h. Horizontally and vertically position the display over the center eight divisions of the graticule 0 line. CHECK – for 8 divisions of horizontal deflection, 0.4 minor divisions. 4–16 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CHECK – that the center dot (the color black dot) is centered in its box within of the box width. e. Enter the GAIN menu and select X1. CHECK – that every dot is within its target box. 4–17 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Position the waveform to place the null and center marker of the Bowtie display on the graticule area. See Figure 4–3. NULL 20 ns 4 ns Figure 4–3: HF Bowtie magnified to measure null offset 4–18 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Two dots to measure ARROWHEAD DIAMOND Figure 4–4: Arrowhead gamut check e. Select Active Signal Parameters on the serial component generator touch screen. Select VIDEO on the serial component generator touch screen. 4–19 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Select VIDEO on the serial component generator touch screen. k. Adjust the Active Video Gain using the knob on the serial component generator to verify signal to graticule accuracy. The two dots should be 4–20 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CHECK – that the negative gamut strobe pulse is flashing at the center one tic mark. k. CHECK – that an RGB ERR appears at the lower left on the waveform monitor display. 4–21 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Select the Eye display mode and the SERIAL B input. e. Set the following parameters on the leveled sine wave generator: Output Head Frequency 10 MHz Amplitude 632 mV 4–22 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Press the MAG button. h. CHECK – using the timing cursors, that one cycle of Eye pattern is 3.7 ns 3% (3.663 to 3.737 ns). Press the MAG button to turn off magnification. 4–23 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Enter the GAIN menu and select 0 dBu. b. Set the function generator for a sinewave output. Set the frequency to 20 kHz and the amplitude to 2.19 V. 4–24 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CHECK – that the EDH readout appears on screen. g. Press the Serial menu RESET button. h. Allow the instrument to run for at least 2.5 minutes. CHECK – that the Errored Seconds, on screen, is zero. 4–25 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Move the Belden cable and terminator to the SER B INPUT. Select SERIAL B. m. Repeat steps d through i for the Serial B input. You have completed the Performance Check procedure. 4–26 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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300 MHz Bandwidth, 2 mV Sensitivity. Time Base: 10 ns/div to 5 ms/div sweep, triggering to 150 MHz. For example: Tektronix TDS540A Oscilloscope with TVTrig option and P6109B 10X and P6119B 1X probes. 5–1 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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The TG2000 is suitable for all Adjustment Procedures in place of the TSG-422 Television Signal Generator. 5. Video Measurement Set (WFM 601M only) For example: Tektronix 1780 or Tektronix 1781 Video Measurement Set 6. Leveled Sine Wave Generator Output Level Range: –11.55 dBm (200 mV) to 0.43 dBm (800 mV).
Plug jumper Signal Ground Figure 5–1: Jumper cable adapter 14. Audio Cable Adapter, as shown in Figure 4–1 on page 4–3. (WFM 601A only) 15. RS-232 Cable The RS-232 cable provides the remote control connection between the PC and the waveform monitor. Figure 5–2 depicts two possible configurations for PC/waveform monitor remote communications.
Adjustment Procedures 25-Pin Female 9-Pin Male Connector Connector To waveform monitor To PC 9-Pin Female 9-Pin Male Connector Connector To waveform To PC monitor Figure 5–2: Minimum configurations for remote communications 5–4 WFM 601A, WFM 601E, & WFM 601M Service Manual...
B drive. NOTE. On your PC, the drive letter for the floppy drive may be A or B. Enter the appropriate letter for your floppy drive in the following steps. 5–5 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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5. Power on the waveform monitor. 6. To start the Adjustment Software, type and press the Return key. 7. The program begins by prompting you for a few configuration parameters before beginning the adjustment steps. 5–6 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Setup Window should be in place when the step is started. All other connections from previous steps should be removed. F3. Advances the Adjustment Procedures program to the next step. 5–7 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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9. The message box appears when the current step has an adjustment set by the PC up/down arrow keys. The box also reminds you that the arrow keys control the adjustment. 5–8 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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To complete any procedure step, press the F3 function key. Using the TG2000/DVG1 Opt S1 Generator This discussion briefly covers how to use the Tektronix TG2000 Signal Generation Platform with the DVG1 Generator in the Adjustment Procedure. Most TG2000 settings required in the procedure are covered in this section. For more information on using the TG2000/DVG1 generator, refer to the User manuals for the TG2000 and DVG1 products.
100% Sweep Linearity 5-step Y valid Ramp Shallow Ramp Matrix Limit Ramp Monitor Gamut Test Pulse Bar Pulse & Bar Timing 2.5 Bowtie 500 kHz Bowtie Active Picture Timing Multipulse 5–10 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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BG1 outputs. Enable the appropriate black burst signal by following these steps: 1. Press the MODULES button, and touch the BG1 module icon. 2. Select the appropriate signal set, NTSC or PAL, called for by the adjustment procedure. 5–11 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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DVG1. See Table 5–2 on page 5–10 for a list of signals included in the various signal sets. You can also obtain signal sets from the Tektronix bulletin board. Contact Tektronix customer support center at 1-800-TEKWIDE. If you need more information on adding test signals than is presented here, refer to the DVG1 User manual.
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Select PRC File to Peruse – lists adjustment files (.prc) when more than one resides in the adjustment software directory. c. Select Model to Calibrate – lists instrument model numbers that can be adjusted using the adjustment software. 5–13 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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If an adjustment fails, it could indicate that repair is needed. Verify the connec- tions, calibration, and configuration all test equipment, including connecting cables and high-frequency terminators, as described in the Equipment Require- ment list on page 5–1. 5–14 WFM 601A, WFM 601E, & WFM 601M Service Manual...
High voltage hazard TP1 GND W2 –11 V ASTIG CRT BIAS R164 +11 R69 +40 V +5 V Adj TP4 +5 V TP5 –5.2 V Figure 5–5: A1 Power Supply board 5–15 WFM 601A, WFM 601E, & WFM 601M Service Manual...
The illustrations are named for the associated adjustment step. 100% Horizontal center marks –.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–9: Trace Rotation, Y Alignment, and Geometry – Horizontal center marks 5–17 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Position of top cross mark –.1 Align bottom three cross –.2 marks on baseline –.3 COMPONENT ANALOG 2% & 4% K Figure 5–10: Post Readout, Offset, and Gain Figure 5–11: Monitor Out YOffset 5–18 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Region of waveform to monitor for amplitude changes –.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–13: On-Screen Frequency Response 5–19 WFM 601A, WFM 601E, & WFM 601M Service Manual...
75% Color bars Second step Fifth step 10 s 10 s Figure 5–17: Arrowhead PBPR – A7R827 adjustment Area to watch during adjustment Figure 5–18: Arrowhead PBPR – A7R868 adjustment 5–21 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Adjustment Procedures Figure 5–19: Jitter Gain 5–22 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Position corner of audio box Figure 5–20: Audio Graticule X and Y Offsets 100% –.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–21: Digital Cursor – Correct waveform and Data Cursor alignment 5–23 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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The signal illustrations in Figures 5–23 through 5–29 are provided as a reference for the test signals used in the Adjustment Procedure. They are shown in a three-channel Parade display as they would appear on the waveform monitor. 5–24 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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COMPONENT ANALOG 2% & 4% K Figure 5–23: 100% Color Bars signal 100% –.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–24: 100% Color Bars with Level Reference 5–25 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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–.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–25: 2.5 MHz Bowtie signal 100% –.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–26: 5-step Staircase signal 5–26 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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100% –.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–27: Shallow Ramp signal 100% –.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–28: 100% Sweep signal 5–27 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Adjustment Procedures 100% –.1 –.2 –.3 COMPONENT ANALOG 2% & 4% K Figure 5–29: Multiburst signal 5–28 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Maintenance This section contains information on preventive maintenance, general trouble- shooting, and corrective maintenance of the WFM 601A, WFM 601E, and WFM 601M Serial Digital Component Waveform Monitors and includes procedures for the following tasks: Inspecting and cleaning the waveform monitor...
Discharge the static voltage from your body by wearing wrist and foot grounding straps. Service static-sensitive assemblies or components only at a static-free workstation. 6–2 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Abrasive cleaners should not be used. If the circuit board assemblies must be removed for cleaning, refer to Removal and Replacement on page 6–5. 6–3 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Wash the used filters in warm water and mild detergent. Let them dry thoroughly before reusing them. Additional Air Filters. Order additional air filters directly from Tektronix. The part number for the air filters is listed in Options, section 7.
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DS7 on the Power Supply circuit board (A1) extinguishes. CAUTION. Do not reinsert screws in the rear panel when the instrument is removed from the cabinet. 6–5 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Square pin connector on power supply circuit board Pin 1 10-pin plug Figure 6–1: Multiple pin connectors Figure 6–2 shows the correct way to remove the large cables joining circuit boards. 6–6 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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1. Disconnect the power cord from the AC mains and the waveform monitor. 2. Remove the two TORX T15 screws shown in Figure 6–3. Cabinet securing screws Figure 6–3: Removing the case from the waveform monitor 6–7 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CRT. To remove the bezel, use the following procedure: 1. Remove the five knobs located below the CRT, using a -inch Allen wrench. See Figure 6–4. Figure 6–4: Removing the CRT bezel 6–8 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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45 angle. 5. To replace the bezel, reverse these steps. To install the small knob panel, press evenly on it until fully seated. 6–9 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Replacement bulbs are supplied with this instrument as standard accessories. Replacement Additional bulbs can be purchased from Tektronix (see Replaceable Electrical Parts list) or from local electronics distribution sources. The bulbs (A3DS1 – A3DS5) are parts of the A3 Main board.
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Notice how the anode lead is tucked between the CRT and CRT shield. It must be replaced in this position to avoid leakage to other components. 6–11 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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2. Push down on the tab located on the top rear of the front-panel assembly and press outward on the upper part of the assembly. See Figure 6–9. 3. Remove the Front Panel assembly by slipping it through the front-panel opening. 6–12 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Pull the Front Panel board free from the front panel, spacer, and keypad. Figure 6–10: Front-panel assembly 5. To reassemble, reverse these steps. Tighten the nuts on the Front Panel assembly with no more than 3 lb of torque. 6–13 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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2. Disconnect A4J1, A4J2, and A4J4 coaxial cables and A4J3 ribbon cable on the A4 Input board as shown in Figure 6–12. Figure 6–12: Connection locations on the A4 Input board 3. Disconnect A7J84 on the A7 Component board. 6–14 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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8. To remove the fan, remove the four TORX T-10 screws from the inside of the rear panel. Pull the fan free with its cable attached. Figure 6–14 shows the parts of the fan assembly. 6–15 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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CRT bezel. 3. Unsolder the four (red, green, blue, and brown) CRT deflection leads from the Main board. The Main board has labels showing where each lead connects. 6–16 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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10. Lower the rear of the Main board and carefully fit the REMOTE and RS-232 connectors into their rear panel slots. 11. Lower the Main board and insert the securing screws. 12. Reconnect cables and solder the CRT connections to the Main board. 6–17 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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3. Disconnect the CRT anode connection at its connector located between the CRT and the Power Supply board. Discharge the anode lead to ground. See Figure 6–16. Figure 6–16: Removing the Power Supply board 6–18 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Figure 6–17: Location of connections on the Serial board 4. Remove the five TORX T-15 screws securing the Serial board. See Figure 6–18. 5. Pull out the top edge of the Serial board and lift it free. 6–19 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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3. Pull the A6 CRT board free from the bracket and instrument chassis. 4. To reinstall the A6 CRT board, reverse these steps. Carefully align the CRT connectors with the CRT socket. Press the socket onto the CRT until fully seated. 6–20 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Disconnect the cable connecting the two boards, A8J4 to A7J14. b. Use a -inch nut driver to remove the six nuts securing the DAC board to the Component board. See Figure 6–20. 6–21 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Figure 6–20: Separating the DAC and Component boards 7. To reinstall the two boards, reverse these steps. When inserting the two-board assembly, ensure that the Component board fits into the plastic board guide in the chassis. 6–22 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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1. Determine if the malfunction exists in the waveform monitor or in another system component. Make sure that the waveform monitor is being correctly operated as intended by Tektronix (see Operating Instructions). Check that an instrument upstream from the waveform monitor is not malfunctioning.
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7. Determine the extent of the repair. If the necessary repair is complex, you may want to contact your local Tektronix field office or representative before continuing. If the repair is minor, such as replacing a component, see the parts lists in sections 8 and 10 for replacement information.
Figure 6–21: Location of circuit board assemblies Table 6–2: Circuit board functional names Circuit board assembly number Assembly name Power Supply Front Panel Main BNC/Input A4A1 CRT Socket Serial Component Digital-to-Analog Converter (DAC) 6–25 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Analyze the circuit using the schematics to find the defective compo- nent(s), or try part substitution in the suspect circuit. 6–26 WFM 601A, WFM 601E, & WFM 601M Service Manual...
TP1 (GND) and the voltage test points. Figure 5–5 on page 5–15 shows the locations of these test points. If the supply is not regulating properly, continue with the procedure to determine the problem. 6–27 WFM 601A, WFM 601E, & WFM 601M Service Manual...
CR35 for shorts. Diode replacement parts must be fast reverse recovery (300 ns) types to reduce conducted noise. e. Using the digital multimeter diode test function, test the snubber diodes CR23 and CR25 for shorts. Replace jumper P7. 6–28 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Table 6–5: Control circuit test points Circuit location Signal U6, pin 3 U6, pin 4 sawtooth wave, 2 V p-p, 200 kHz U6, pin 6 80 kHz square wave, 18 V p-p, 100 kHz 6–29 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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0 V. g. Slowly increase the voltage of the variable Power Supply. Before the voltage reaches 6 V, the over-voltage protection circuit should fire and pull it below 1 V. 6–30 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Unable to focus CRT using the front-panel Focus Amplifier Check control Unable to adjust CRT intensity using the Z-Axis Amplifier Check front-panel control Grid Drive Check No CRT display High Voltage Oscillator Check CRT Voltage Check 6–31 WFM 601A, WFM 601E, & WFM 601M Service Manual...
T1, pin 4 Approximately +40 V T1, pin 13 Less than +2 V U2, pin 2 Approximately +4.8 V U2, pin 6 +4 to +11 V CR9, cathode Approximately +100 V 6–32 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Accessories list located on page 7–1. Insulator (cardboard) Holes for the DAC board standard cables Standard cable Shield Component board Serial board Figure 6–23: Configuration to troubleshoot the DAC board 6–33 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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1 on the connector at each end. Insulator (cardboard) Component board DAC board Holes for the standard cables Test cable Serial board Figure 6–24: Configuration to troubleshoot the Component board 6–34 WFM 601A, WFM 601E, & WFM 601M Service Manual...
Perform all steps. Performance Verification Perform the Performance Verification procedure after replacing any instrument circuit board. This procedure can identify any new problems introduced during repair or replacement of a circuit board. 6–35 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Serial port on the rear panel. The instructions in this section describe how to use the Upgrade program to upgrade the software in a WFM 601A, WFM 601E, or WFM 601M waveform monitor. New software upgrades are released as kits, which give details of the requirements and results of the upgrade.
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COM 1, 2, 3, or 4 connector on the PC using a cable wired as shown in Figure 6–25. 3. Set the serial port communication parameters for the PC as shown in Table 6–10. 6–37 WFM 601A, WFM 601E, & WFM 601M Service Manual...
25-Pin female 9-Pin male connector connector To waveform monitor To PC 9-Pin male 9-Pin female connector connector To PC To waveform monitor Figure 6–25: Configuration for RS-232 communications 6–38 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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1. Remove the instrument from the cabinet as described on page 6–7. 2. Position the instrument with the bottom up and the front panel to your left. 3. Replace socketed U13 with the IC Tektronix part number 163-0653-02 provided in the kit. Refer to Figure 6–26 for the component location.
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To overwrite the existing NVDATA.TXT file with the calibration constants currently in the NVRAM and to continue the upgrade, type . To exit the Upgrade program without changing your waveform monitor, type . 6–40 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Upgrade program is running. To recover from an unsuccessful upgrade attempt, see Recovering from an Interrupted or Failed Upgrade on page 6–45. If this recovery procedure is not successful, return the waveform monitor to Tektronix for repair. 6–41 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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The program then stores the new configuration in NVRAM. The program asks whether to install new software. If the Main board is a replacement from Tektronix, it has the latest version of software installed. Type to exit the Upgrade program and proceed to step 10 in this procedure.
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NVDATA.TXT file using the following procedure. This procedure takes about two minutes. 1. Exit from all applications on your PC. 2. From the DOS prompt, change to the directory containing the upgrade files. 3. Type and press ENTER. 6–43 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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2. Verify the RS-232 configuration as shown in Figure 6–25 on page 6–38 and Table 6–10, on page 6–38. 6–44 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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2. Verify the RS-232 configuration as shown in Figure 6–25 on page 6–38 and Table 6–10, on page 6–38. 3. Exit from all applications on your PC. 4. From the DOS prompt, change to the directory containing the upgrade files. 6–45 WFM 601A, WFM 601E, & WFM 601M Service Manual...
(HF) 75 ohm terminator. Select a 100% Color Bar signal. 2. Load the Adjustment Procedures Software disk and run the cal.exe program. Refer to section 5 of this manual for more information on running the cal.exe application. 6–46 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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After running the Upgrade program, you will need to verify that the waveform of the Waveform Monitor monitor still performs to specifications. Perform the procedures in the Perfor- mance Verification section. 6–47 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Maintenance Repackaging If the instrument is to be shipped to a Tektronix Service Center for service or repair, attach a tag to the instrument showing the following information: Owner with complete address Name of the person at your firm to contact...
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Standard Accessories The following accessory items are included with this product: User Manual, provides operating information for the products WFM 601A, WFM 601E, & WFM 601M User manual (Tektronix part number 071-0103-XX) Power Cord: United States and Japan only (161–0216–XX) Replacement Fuse Cartridge: 3AG, 2A, 250V, fast-blow (159–0021–00)
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Optional Accessories The following items can be ordered with the monitor or purchased through a Tektronix field office or distributor. When ordering, include both the name and part number (if available) of the option. WFM 601A, WFM 601E, & WFM 601M Service Manual. (070-9836-XX) This manual.
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This section contains a list of the electrical components for the waveform monitors. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative. Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements.
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Chassis-mounted parts have no assembly number prefix, and they are located at the end of the electrical parts list. Tektronix Part Number Use this part number when ordering replacement parts from Tektronix. 3 and 4 Serial Number Column three indicates the serial number at which the part was first effective. Column four indicates the serial number at which the part was discontinued.
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ANDERSON ELECTRONICS INC PO BOX 89 HOLLIDAYSBURG, PA 16648–0089 14552 MICROSEMI CORP 2830 S FAIRVIEW SANTA ANA, CA 92704–5948 15454 KETEMA INC RODAN DIVISION ANAHEIM, CA 92806–2591 2900 BLUE STAR ST 8–3 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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13343 PAXTON ST PACOIMA, CA 91331 55680 NICHICON (AMERICA) CORP 927 E STATE PARKWAY SCHAUMBURG, IL 60195–4526 56845 DALE ELECTRONIC COMPONENTS 2300 RIVERSIDE BLVD NORFOLK, NE 68701 PO BOX 74 8–4 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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BEAVERTON, OR 97005 TK0515 EVOX/RIFA INC 300 TRI–STATE INTERNATIONAL LINCOLNSHIRE, IL 60069 SUITE 375 TK1913 WIMA DIV OF INTER–TECHNICAL GROUP INC ELMSFORD, NY 10523–0535 175 CLEARBROOK RD PO BOX 535 8–5 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Replaceable electrical parts list (cont.) Component Tektronix Serial no. Serial no. number part number effective discont’d Name & description Mfr. code Mfr. part number A7U803 156–6735–01 IC,LINEAR:BIPOLAR,OP–AMP,65MHZ 24355 AD810AR–REEL A7U805 156–6735–01 IC,LINEAR:BIPOLAR,OP–AMP,65MHZ 24355 AD810AR–REEL 8–91 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Replaceable Electrical Parts 8–98 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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The schematic diagram and circuit board component location illustrations have grids Other standards used in the preparation of diagrams by Tektronix, Inc., include the marked on them. The component lookup tables refer to these grids to help you locate a following: component.
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(3) signal selection Control line OUTPUT Serial from board Signal flow Line rate controller From Line (2) or (3) Block diagram number rate controller Figure 1–1: Main block diagram 1 9–3 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Control line – Signal flow Component ARROW display (1) or (3) Block diagram number switching Lighting X to Horizontal signal Low pass filter multiplexer (1) Figure 1–2: Component block diagram 2 9–4 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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& register Schematic diagram number MISO From A/D (3) Control line Signal line (2) or (3) Block diagram number Figure 1–3: Microprocessor and control block diagram 3 9–5 WFM 601A, WFM 601E, & WFM 601M Service Manual...
SCHEM BOARD CIRCUIT SCHEM SCHEM BOARD NUMBER NUMBER LOCATION LOCATION NUMBER NUMBER LOCATION LOCATION NUMBER NUMBER LOCATION LOCATION A4A1 BNC Board Figure 1–4: A4 Input board and A4A1 BNC board 9–6 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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COAX CABLE DRIVER SERIAL RECEIVER SIGNAL PRESENT DETECTOR A/D CONVERTER 3.8 MHZ OSC –5V SUPPLY WFM 601A SERIAL COMPONENT MONITOR SERIAL RECIEVER...
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BUFFER AMPLIFIER WFM 601A SERIAL COMPONENT MONITOR SERIAL DIGITAL AMPLIFIER...
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*Refer to Figure 1–5 on page 9–8 and Figure 1–6 on page 9–10 for the front and rear A5 Serial board illustrations, respectively. The board illustrations show the location of components for the three waveform monitors. 9–26 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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*Refer to Figure 1–5 on page 9–8 and Figure 1–6 on page 9–10 for the front and rear A5 Serial board illustrations, respectively. The board illustrations show the location of components for the three waveform monitors. 9–27 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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HORIZONTAL DEFLECTION SWEEP GENERATORS HORIZONTAL SIGNAL MUX HORIZONTAL AMPLIFIER PART OF A3 MAIN BOARD WFM 601A/E/M SERIAL COMPONENT MONITOR HORIZONTAL...
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MICROPROCESSOR FLASH EPROM NOVRAM BUFFERS ABORT RESET PART OF A3 MAIN BOARD WFM 601A/E/M SERIAL COMPONENT MONITOR MICROPROCESSOR...
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SYNCHRONOUS OUTPUTS LINE RATE CONTROLLER SYNC SEPARATOR WFM 601A/E/M SERIAL COMPONENT MONITOR DYNAMIC CONTROL...
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READOUT CONTROL READOUT STROKE GENERATOR WFM 601A/E/M SERIAL COMPONENT MONITOR READOUT...
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”DACULATORS” D/A CONVERTERS SERIAL INTERFACE SERIAL STATIC OUTPUTS PART OF A3 MAIN BOARD WFM 601A/E/M SERIAL COMPONENT MONITOR DACS & SERIAL...
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RS232 SERIAL PORT DIGITAL BUS CONNECTORS RS232 REMOTE REAR PANEL REMOTE REMOTE PORT PART OF A3 MAIN BOARD WFM 601A/E/M SERIAL COMPONENT MONITOR REMOTE & DIGITAL BUS CONNECTORS...
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–8V SUPPLY GRATICULE LIGHTS +8V SUPPLY BEZEL CONTROLS HORIZ POS VERT POS BLANKING LOGIC CRT LEFT TRACE ROTATION CRT MIDDLE CRT RIGHT WFM 601A/E/M SERIAL COMPONENT MONITOR Z–AXIS & CONTROL...
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CIRCUIT SCHEM SCHEM BOARD CIRCUIT SCHEM SCHEM BOARD NUMBER NUMBER LOCATION LOCATION NUMBER NUMBER LOCATION LOCATION NUMBER NUMBER LOCATION LOCATION A2 (Front) A2 (Back) Figure 1–11: A2 Front Panel board 9–76 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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WFM 601M SERIAL COMPONENT MONITOR FRONT PANEL...
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Figure 1–12: A1 Power Supply board 9–78 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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OUTPUT FILTERS LINE RECTIFIER SNUBBER OVERVOLTAGE –5.2V BUCK PROTECTION CONTROLLER SWITCHER OVERLOAD TIME–OUT ERROR AMPLIFIER MAG LATCH (MEMORY) POWER SWITCH OSCILLATOR PART OF A1 POWER SUPPLY WFM 601M SERIAL COMPONENT MONITOR LOW VOLTS POWER SUPPLY...
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HV OSC & ERROR AMP Z AXIS AMPLIFIER FOCUS AMPLIFIER WFM 601M SERIAL COMPONENT MONITOR HIGH VOLTS POWER SUPPLY...
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This section contains a list of the replaceable mechanical components for the waveform monitors. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative. Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements.
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Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow. Tektronix Part Number Use this part number when ordering replacement parts from Tektronix. 3 and 4 Serial Number Column three indicates the serial number at which the part was first effective. Column four indicates the serial number at which the part was discontinued.
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CRAFT FACTORY PLASTICS 17145 SW ALEXANDER ALOHA, OR 97007 TK1935 ACCRA–FAB INC 11007 NE 37TH CIRCLE VANCOUVER, WA 98682 TK2469 UNITREK CORPORATION 3000 LEWIS & CLARK HWY VANCOUVER, WA 98661 SUITE 2 10–3 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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WOODINVILLE, WA 98072 BLDG B, SUITE 100 TK2597 MERIX CORP 1521 POPLAR LANE FOREST GROVE, OR 97116 TK6159 RICHEY ELECTRONICS INC 3601 SW MURRY BLVD BEAVERTON, OR 97005 SUITE 60 10–4 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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SCREW,MACHINE:6–32 X 0.875,PNH,SST,TORX & SLOT 93907 B20–70430 –10 333–4023–00 PANEL,FRONT:CRT,1740A/1750A TK1163 333–4023–00 –11 366–0649–01 KNOB:GY,0.127 ID X 0.392 OD X 0.5 H 80009 366–0649–00 –12 426–2455–00 FRAME,CRT:BEZEL TK1163 426–2455–00 –13 378–0258–00 FLTR,CONTRASTIN:GRAY,POLYCARBONATE 80009 378–0258–00 10–5 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Replaceable Mechanical Parts Figure 10–1: Front Panel exploded view 10–6 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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ORDER BY DE- SCRIPTION –22 129–1444–00 SPACER,POST:6–32 X 0.300DP,0.975 L,0.250 HEX AL TK0588 129–1444–00 –23 210–0407–00 NUT,PLAIN,HEX:6–32 X 0.25,BRS CD PL 73743 3038–402 –24 174–3560–00 CABLE ASSY,SP:RIBBON,IDC,28 AWG,1.8L,2X30,RCPT BOTH TK1547 174–3560–00 ENDS 10–7 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Replaceable Mechanical Parts Figure 10–2: DAC Bd, Component Bd, and CRT exploded view 10–8 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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E6 CLEAR ROUND CABLE CLAMP –18 211–0720–01 SCREW,MACHINE:6–32 X 0.50,PNH,STL,TORX T–15 W/ SLOT 0KB01 211–0720–01 Two 174–2652–01 cable assemblies for the WFM 601E and WFM 601M, one for the WFM 601A 10–9 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Replaceable Mechanical Parts Figure 10–3: Serial, Power, and Main boards exploded view 10–10 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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THK ALUM,ETCH & CHROMATE,4 HOLES 0.156 DIA –20 672–0367–00 CIRCUIT BD ASSY:A4 BNC/INPUT ASSY,WFM601M 80009 672–0367–00 –21 210–0457–00 NUT,PL,ASSEM WA:6–32 X 0.312,STL,W/LOCKWASHER 0KB01 ORDER BY DE- SCRIPTION –22 174–3470–00 CA,ASSY,SP:RIBBON,IDC,28 AWG,3.5 L,RCPT,NON PLZ TK2469 174–3470–00 10–11 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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Replaceable Mechanical Parts Figure 10–4: Rear panel and Fan exploded view 10–12 WFM 601A, WFM 601E, & WFM 601M Service Manual...
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