Contents Page Page SECTION 3 ETAILE OPERATING INSTRUCTIONS LIST OF ILLUSTRATIONS ..........FOR GPIB (cont.) LIST OF TABLES ............... SAFETY INFORMATION ............SECTION 1 GENERAL INFORMATION SECTION 2 OPERATING INSTRUCTIONS SECTION 3 ETAILE OPERATING INSTRUCTIONS FOR GPIB SECTION 4 ETAILE OPERATING INSTRUCTIONS FOR ASCII...
ARNING Page SECTION 9 REPLACEABLE ELECTRICAL PARTS SECTION 10 IAGRAMS AN CIRCUIT BOAR ILLUSTRATIONS SECTION 11 REPLACEABLE MECHANICAL PARTS CHANGE INFORMATION Page SECTION 5 THEORY OF OPERATION List of Illustrations Figure Page SECTION 6 MAINTENANCE SECTION 7 PERFORMANCE CHECK AN A JUSTMENT SECTION 8 INSTRUMENT OPTIONS...
SAFETY INFORMATION GENERAL USE THE PROPER POWER COR USE THE PROPER FUSE O NOT OPERATE IN EXPLOSIVE ATMOSPHERE O NOT REMOVE COVERS OR PANELS GROUN ING O NOT SERVICE ALONE...
Section 1 — F2 GENERAL INFORMATION INTRO UCTION NOTE hannel 0 is the top-most channel displayed in TIMING DIAGRAM format and is always considered the least significant bit. on't Care ata — ata — Good ata-AII Indeterminate ata — GLOSSARY OF TERMS Invalid ata —...
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General Information — F2 PACKAGING FOR SHIPMENT INSTALLATION CAUTION To prevent instrument damage, plug-in units should not be installed or removed without first turning off the mainframe power. NOTE When installed in a four-compartment main frame, the DF/7D01 occupies the left vertical, right vertical, and A horizontal compartments only.
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Operating lnstructions- F2 NOTE The Functional heck procedure is provided for familiarization and for checking basic functions of the Display Formatter. These functions are checked without removing the covers or making internal connections. Per formance requirements, functions which require removal of side panels, and detailed checks of the DF memory are provided in the Performance heck and Adjustment procedures...
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Operating Instructions- F2 TABLE 2-1 (CONT.) Irregular Operating Symptoms Corrective Procedure Symptom Probable Cause First Trigger -OR- position. (P617) in Full isplay position. Full isplay position. NOTE This fills up the remaining memory and switches the 7D01 from record mode to display mode.
Section 3 — F2 ETAILE OPERATING INSTRUCTIONS FOR GPIB GPIB OVERVIEW GENERAL MECHANICAL ELEMENTS ELECTRICAL ELEMENTS Coding Electrical Signal Levels Logical State...
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Operating Instructions for GPIB — F2 ata Bus Management Bus ATN (Attention).
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Operating Instructions for GPIB- F2 Transfer Bus SRQ (Service Request). (Not Ready for ata). REN (Remote Enable). AV ( ata Valid). EOI (End or Identify). N AC (Not ata Accepted). I FC (Interface Clear).
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Operating Instructions for GPIB — F2 SETUP PROCE URE FOR GPIB OPERATION FULL ISPLAY/FIRST TRIGGER SELECTOR OF7 01 LOGIC ANALYZER TABLE 3-1 Minimum clock pulses required to display data. (After the Manual Reset button is pressed.) Full isplay Mode 1 First Trigger Mode AT) POSITION ATA POSITION...
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Operating Instructions for GPIB — F2 LEAST SIGNIFICANT -------- B|TS --------- MOST SIGNIFICANT BITS...
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Operating Instructions for GPIB- F2 GPIB TRIGGERING GENERAL ESCRIPTION AN FEATURES GPIB Lines W.R. Channels (7 01) NOTE Two trigger modes exist in the 7D01: 1. First Trigger mode — The 7D01 is triggered when the first W.R. condition goes true, after at least one dock puise has occurred to arm the W.
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Operating Instructions for GPIB — F2 For triggering on a GPIB event, the most important point to remember is that the bus is defined in negative logic. This means that a true (active) signal is a LOW signal to the word recognizer. For example, when ATN is asserted it means a LOW voltage appears at the input to channel 7 in the word recognizer.
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Operating Instructions for GPIB — F2 ACG (Addressed Command Group) LAG (Listen Address Group) TAG (Talk Address Group) UCG (Universal Command Group)
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Operating Instructions for GPIB- F2 UIMT (Untalk) TAG 14 SCG 22 LAG 25 RECOGNIZER EXTERNAL W.R. LJALIFER MO E SYNC ASYNC PROBE...
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Operating Instructions for GPIB — F2 NON-ATN MESSAGE TRIGGERING CONTROL LINE TRIGGERING CR (Carriage Return)
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Operating Instructions for GPIB - F2 GPIB TIMING CORRECT HAN SHAKE ASYNCHRONOUS TRIGGERING...
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Operating Instructions for GPIB — F2 NOTE In the asynchronous mode the Filter knob, on the front panel of the 7D01, controls the time that the word recognizer output must be true before the 7D01 is triggered. If the Filter is set for 300 ns (fully clockwise), the input word to the R.
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The TEKTRONIX DL2 (7000-Series plug-in)and DL 502 (TM 500-Series plug-in) digital latches cover this require ment. For example, if the Sample Interval switch were set to 5 ms, but DA V went from low and back to high in 100 µs, the 7D01 would often miss this occurrence.
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Operating Instructions for GPIB — F2 ERROR MESSAGE ISPLAY REQUIRES 16 CHANNEL MO E...
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Operating Instructions for GPIB — F2 IRREGULAR OPERATING SYMPTOMS FOR GPIB TABLE 3-2 Irregular Operating Symptoms for GPIB Symptom Additional Symptoms Probable Cause and Correction...
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Operating Instructions for GPIB — F2 GPIB APPLICATIONS PROBLEM PROCE URE NOTE Make sure h 0-7 and H 8-15 are connected properly in the adapter, probes, and 7D01. NOTE If any of these situations is suspected, the user- definable lines can be useful in examing the hanshake lines in the timing mode, and/or looking at a device's internal logic to discover if the signals are finding their way into, and out of, the interfacing logic.
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Operating Instructions for GPIB- F2 NOTE No common condition exists for the state of the handshake lines or the actions of the controller. Various devices handle each situation differently. GPIB FUNCTIONAL CHECK...
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Operating Instructions for ASCII- F2 NOTES:...
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Operating Instructions for ASCII — F2 NOTE In AS H operation both the trigger word readout and the 1 7-iine table are always displayed in the same mode (hex, octal, or binary).
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Operating Instructions for ASCII — F2 LEAST SIGNIFICANT — -* MOST SIGNIFICANT BITS BITS...
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Operating Instructions for ASCII — F2 MOST SIGNFICANT BITS — — ------ *- < ’ > ★ <...
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Operating Instructions for ASCII — F2 TABLE 4-1 Secondary Functions of isplay Push Buttons. ISPLAY MO E ISPLAY PUSH BUTTON OCTAL BINARY...
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Use a non-residue type of cleaner, preferably isopropyl alcohol, total denatured ethyl alcohol, or TP35. Before using any other type of cleaner, consult your local Tektronix Service enter or representative. SEMICON UCTOR CHECKS...
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Maintenance — F2 TROUBLESHOOTING TROUBLESHOOTING AI S TROUBLESHOOTING EQUIPMENT TABLE 6-1 Error Messages and Responses Action Error Message...
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Maintenance — F2 2. CHECK ASSOCIATE EQUIPMENT. 3. VISUAL CHECK. 4. CHECK INSTRUMENT A JUSTMENT. 5. ISOLATE TROUBLE TO A CIRCUIT. 6. CHECK VOLTAGES AN WAVEFORMS. TROUBLESHOOTING TECHNIQUES 7. CHECK IN IVI UAL COMPONENTS.
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Maintenance -- F2 Inductors. ARNING To avoid electric shock, disconnect the power source before removing or replacing semi conductors. Capacitors. Transistors. 8. REPAIR AN A JUST. Integrated Circuits. iodes. Do not use the ohmmeter on a scale that has high internal current.
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Maintenance — F2 NOTE The System Test Fixture DA TA and ADDRESS switches, and the EXAMINE and DEPOSIT push buttons control the DF's data bus, address bus, and R/W line. A t all times during this troubleshooting procedure, disregard the condition of the Address lights on the System Test Fixture.
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Maintenance ~ F2 TABLE 6-2 Hex-to-Binary Conversion Binary Binary NOTE If at any time the Data lights do not match the DA TA switches in steps c and d, the problem is either a bad RAM 1 , some other 1 on the bus not being disabled, or the buses are either shorted together, to ground, open, or tied to ATA BUS AN...
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Maintenance — F2 TABLE 6-3 KEYBOAR TEST. ROM Hexadecimal Output Program ROM U284 ROM U294 NOTE A failure could originate in the Keyboard circuit I 's (U65, U172), the address decoding for them, or the interconnections on one of the specific push buttons used in the test.
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Maintenance — F2 BUTTON LIGHTS TEST. NOTE The DF SEAR H and STORE 7D01-* REF buttons do not have lights. NOTE All button lights that are on at the start of this test will be shifted to the right and down with each each press of the Deposit button.
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Maintenance — F2 TABLE 6-6 Formatter Readout Truth Table ata Switch Number Line # isplay (Address 00A8) (Address 0098)
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Maintenance — F2 NOTE 1. Cursor Increment. If the display does not match that shown in Tables 6-6 and 6-7, first check the mode decoding circuitry, then the display. HINT — If the display doesn't work, follow the counter docks around to assure they are all operating. 7 01 CONTROL SIGNALS.
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Maintenance — F2 NOTE Address 0098 determines if the 7D01 display dock is on or off. 3. 7 01 Reset. 1. CURSOR ACQUISITION. NOTE DA TA switch number 3 at address 00A8 controls the 7D01 reset. 7 01 ACQUISITION.
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Maintenance-- F2 3. 7 01 Memory. 2. 7 01 STATUS. NOTE The 7D01 should be in external trigger, with no input.
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Maintenance — F2 NOTE If a bright dot appears on the crt display, either position it off-screen, or reduce the oscilloscope intensity. RESET OUTPUT.
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Maintenance — F2 CORRECTIVE MAINTENANCE SOL ERING TECHNIQUES OBTAINING REPLACEMENT PARTS NOTE When selecting replacement parts, it is impor tant to remember that the physical size and shape of a component may affect its perform ance in the instrument, particularly at high frequencies.
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Maintenance — F2 COMPONENT REMOVAL AN REPLACEMENT To avoid electric shock, disconnect the instru ment from the power source before replacing NOTE components. The reason that some component leads seem troublesome to remove is due to a bend placed in each lead during the manufacturing process.
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Maintenance — F2 SEMICON UCTORS INTERCONNECTING PINS ARNING To avoid electric shock, power must be turned off before removing or replacing semi CIRCUIT-BOAR PINS. conduc tors.
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Maintenance — F2 CIRCUIT-BOAR PIN SOCKETS. CAUTION < The spring tension of the pin sockets ensures a good connection between the circuit board and the pin. This spring tension can be destroyed by using the pin sockets as a connecting point for spring-loaded probe tips, alligator dips, etc.
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Section 7- F2 PERFORMANCE CHECK AN A JUSTMENT PRELIMINARY INFORMATION A JUSTMENT INTERVAL A JUSTMENT PROCE URE TEKTRONIX FIEL SERVICE PARTIAL PROCE URE PERFORMANCE CHECK TABLE 7-1 Performance Check escription Characteristic Performance Requirement Test Method...
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Performance Check and Adjustment — F2 TABLE 7-1 (CONT.) Performance Check escription Characteristic Performance Requirement T est Method TEST EQUIPMENT REQUIRE TEST EQUIPMENT ALTERNATIVES SPECIAL FIXTURES...
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Performance Check and Adjustment — F2 TABLE 7-2 Test Equipment Examples of Applicable Minimum Specifications Purpose Test Equipment escription IN EX TO PERFORMANCE CHECK AN A JUSTMENT PAGE PRELIMINARY PROCE URE...
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REPLACEABLE ELECTRICAL PARTS PARTS OR ERING INFORMATION SPECIAL NOTES AN SYMBOLS ITEM NAME ABBREVIATIONS...
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FULLERTON, CA 9263 750 2 TRW ELECTRONIC COMPONENTS, IRC FIXED RESISTORS, PHILADELPHIA DIVISION 01 N. BROAD ST. PHILADELPHIA, PA 19108 80009 TEKTRONIX, INC. P 0 BOX 500 BEAVERTON, OR 97077 91637 DALE ELECTRONICS, INC. P. 0. BOX 609 COLUMBUS, NE 68601...