Summary of Contents for 070-6027-00

Page 1: ...ess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demo...

Page 2: ...INSTRUCTION Part No 070 6027 00 TEK MANUAL Product Group 60 PROBE Please Check for CHANGE INFORMATION at the Rear of This Manual First Printing MAY 1986 Revised MAR 1987...

Page 3: ...sion of Tektronix Inc Products of Tektronix Inc and its subsidiaries are covered by U S and foreign patents and or pending patents TEKTRONIX TEK SCOPE MOBILE and are registered trademarks of Tektronix...

Page 4: ...nge 2 1 Probe Grounding 2 2 CONTROLS AND CONNECTORS 2 4 PROBE ACCESSORIES 2 4 OPERATION 2 7 SECTION 3 PERFORMANCE CHECK PURPOSE 3 1 TEST EQUIPMENT REQUIRED 3 1 LIMITS AND TOLERANCES 3 1 PREPARATION 3...

Page 5: ...OOTING 6 4 Troubleshooting Techniques 6 9 CORRECTIVE MAINTENANCE 6 10 Maintenance Precautions 6 10 Obtaining ReplacementParts 6 10 PROBE DISASSEMBLY 6 11 Control Box Disassembly 6 11 Cable Assembly Re...

Page 6: ...6231 Probe VIII Typical input impedance versus frequency I 6 Damaging effects of ground lead inductance 2 2 Reducing the effects of ground lead inductance 2 3 Controls connectors and probe accessories...

Page 7: ...k setup 3 4 3 2 High frequency check setup 3 4 4 1 P6231 adjustment locations 4 5 5 1 Functional block diagram 5 2 6 1 Disassembly of control box 6 12 7 1 Main circuit boardlayout 7 2 Flexible circuit...

Page 8: ...istics 1 5 Physical Characteristics I 5 Typical Performance Effects of Grounding Configurations 2 6 Test Equipment Required 3 2 Test Equipment Required 4 2 Relative Susceptibility To Static Discharge...

Page 9: ...es WARNING statements identify conditions or practices that TO avoid explosion do not operate this product in any ex could result in personal injury or loss of life plosive atmosphere unless it has be...

Page 10: ...ary Do Not Service Alone Use Care When Servicing With Power On Do not perform internal service or adjustment of this pro To avoid personal injury do not touch exposed connec duct unless another person...

Page 11: ...The P6231 probe p6231...

Page 12: ...e loading effects The offset is controlled through the TEKPROBE interface by the host instru ment The voltage available at the probe tip spans the range from 5V to 5V allowing the probe to minimize lo...

Page 13: ...s that are impractical tions stated in Table 1 2 to check Items listed in the Performance Requirement column The probe s physical characteristics are listed in Table are verifiable qualitative or quan...

Page 14: ...t least 1 5 GHz I Calculatedfrom probe rise time BW 0 35lrise time Less than 230 ps Test system must have a rise time less than 100 ps 4 6 1 0 6 p p for 1st 1 ns ref from 1 ns 4 6 for 1st 20 ns ref fr...

Page 15: ...ut Voltage PerformanceRequirement 50Q 0S0 0 10 Vdc c o n t i n u o 30 V dc peak ac for 1 sec Power Supply Requirements Specification P6231 Supplemental Information Power is drawn from thea host instru...

Page 16: ...e cycles 120 hr at 90 to 95 relative humidity at 30 C to 60 C 55 C to 75 C 67 F to 167 F Transportation National Safe Transit Association s Pre shipment Test Procedures 1A 6 1 I Physical Characteristi...

Page 17: ...I 100 kHz 1 MHz 1 0 MHz 100 MHz 1 GHz 1 0 GHZ I FREQUENCY Hz Figure 1 1 Typical input impedance versus frequency 1 6 Specification P6231...

Page 18: ...gned for ease of use when probing small circuitry Both the probe itself and its accessories should be handled carefully at all times Avoid dropping the probe body since damage to its tip may result Ex...

Page 19: ...model above the ground lead inserts a series inductance into the signal path forming a series resonant circuit between Gin of the probe and ground lead L with only Rsource as damping This forms a reso...

Page 20: ...ribbed tip cover and slide off the ground collar with ground lead Slip on the low inductance lead ground collar 1 and reinstall the ribbed tip cover Install the low inductance lead 2 from the acces s...

Page 21: ...s the ID function in the host in strument when pushed Pressing the ID button can also execute a sequential step through a pro grammed test routine or generate status flags on an IEEE 488 bus if the os...

Page 22: ...IT BOARD TO PROBE TIP CONNECTORS 4 MICRO HOOK ALLIGATOR CLIP GROUND COLLAR WITH LEAD LOW INDUCTANCE COMP NSATION GROUND LEAD BOX 6027 4 REV AUG 1986 Figure 2 3 Controls connectors and probe accessorie...

Page 23: ...rs are provided in several different colors to help identify specific probes when using multichannel oscilloscopes Bandwidth calculated 1 5 GHz 800 MHz 350 MHz Circuit Board to Probe Tip Connectors Tw...

Page 24: ...In Figure 2 4 there is a source having both DC and AC components From the voltage divider of Rs and RL there will be a DC voltage at that test point If the P6231 offset is adjusted so that it is equal...

Page 25: ......

Page 26: ...check and as a test of the probe after manual repair This section contains only the procedures for checking the P6231 s dc offset range and high frequency charac LIMITS AND TOLERANCES teristics The c...

Page 27: ...on factor 5 mV to 1 V TEKTRONIX 7704A with 7S12 plug in 4 Sampling Oscilloscope Purpose Offset range check Bandwidth dc to 4 6 GHz Example of Suitable Test Equipment TEKTRONIX 11000 Series with 11A32...

Page 28: ...tion 8 Adapter 9 Adapter Oscilloscope Item 1 Digital Multimeter Item 2 DC Voltage Source Item 3 Minimum Specification Connectors GR to BNC female Connectors SMA male to GR Volts Division 2 V Input Cou...

Page 29: ...31 PROBE iROUND LEAD TIP I PROBE CABLE TERMINATION I TERMINATION1 ADAPTER I PROBE SMA TO OR TIP ADAPTER 6027 8 Figure 3 1 Offset check setup Figure 3 2 High frequency check setup 3 4 Performance Check...

Page 30: ...eat steps I and m with the voltage source set to common input of the multimeter Touch the probe input to 5 0 V and the probe connected to the output the input of the rnultimeter o Disconnect the test...

Page 31: ...fset and Time Distance controls to center the leading edge of the pulse on the screen d Adjust the VoltslDivision Variable control for a 5 division display f Calculate the probe risetime using the fol...

Page 32: ...ce of each adjust mint step should be corrected before continuing e k tronix Field Service Centers and the Factory Service ADJUSTMENT SEQUENCE Center provide instrument repair and adjustment service R...

Page 33: ...bration Generator 3 Precision Coaxial Cable 4 2 Adjustment Procedure P6231 REV AUG 1986 Minimum Specification Bandwidth dc to at least 100 MHz Vertical def lection factor 5 mV to 1 V Two vertical chan...

Page 34: ...ektronix Part Number 013 0195 00 5 Termination 6 BNC T REV MAR 1987 Impedance 50Q Connectors BNC 7 Low Reactance Alignment Tool Adjustment Procedure P6231 Connectors BNC Attenuation and mid frequency...

Page 35: ...R38 see Figure 4 1 for minimum trace shift while rotating the OFFSET VOLTAGE on the oscillo a Connect the probe output to the test oscilloscope scope control back and forth vertical input Leave the p...

Page 36: ...utput of the calibration gen Figure 4 1 P6231 adjustment locations erztor to the channel 1 vertical input via the 504 cable Do not use the 504 termination f Move the 504 cable from the channel 1 verti...

Page 37: ...ode to Fast Rise I Adjust the calibrator pulse amplitude for a 5 division display rn Center the two traces on the screen n CHECK The amplitude of the channel 2 trace should be within 3 0 15 division o...

Page 38: ...und point Figure 5 1 is a functional block diagram of the P6231 The P6231 divides the signal into two separate signal paths The high frequency path consists of the tip assem bly the cable assembly R62...

Page 39: ...ired for pin 6 and re inverts the dc to mid frequency signal R24 the probe such as termination units displayed on screen and R34 and the 50 9 termination form a voltage divider or attenuation factor T...

Page 40: ...ns are for use by qualified personnel only To avoid electrical shock do not perform any probe maintenance while the probe is 2 Transport and store static sensitive components or connected to a signal...

Page 41: ...ky signal diodes I 250 V 7 Do not slide the components over any surface Schottky TTL I Linear microcircuits 400 1000 V High frequency bipolar transistors I 400 600 V JFET 600 800 V I voltage discharge...

Page 42: ...N D Avoid the use of chemical cleaning agents which may damage the plastics and circuit board used in the probe In particular avoid chemicals which con tain benzene toluene xylene acetone MEK or simi...

Page 43: ...corrected to prevent recurrence of the damage TROUBLESHOOTING The following information is provided to facilitate troub substitutions may be made with similar test equipment leshooting the P6231 An u...

Page 44: ...Specification Example Table 6 3 2 Digital Multimeter Fault lndication and Probable Cause Voltmeter 0 to 20 V dc range 0 15 accuracy Ohmmeter 0 to 2 MQ range Wrong Attenuation Ratio 1 Defective probe...

Page 45: ...ocedure DC and mid frequency portion of signal missing or severely attenuated 6 6 Maintenance P6231 1 Defective power supply 2 U30 or U18 defective HF portion of signal missing or severely attenuated...

Page 46: ...gnal or intermittent signal 4 R62 defective 5 Defective probe tip assembly 1 Broken or unsoldered wire connection or Corrective Action Replace probe tip assembly Return to service center Return to ser...

Page 47: ...ture does not work or is out of specification I I 2 U10 R20 R48 R46 defective 3 Power supply is defective or out of specification Return to service center Input biasloffsetvoltage Return to service ce...

Page 48: ...Associated equipment at either input or output of the probe may be defective A signal you expect to see might not exist or might be distorted at the point you are testing If you are using the probe wi...

Page 49: ...he following precautions or resoldered repair of components on the circuit boards should be referred to a Tektronix service center OBTAINING REPLACEMENT PARTS Special Parts Most of the parts and assem...

Page 50: ...off the control box while holding the cable boot assembly and the BNC assembly firmly in the bottom box half The following procedure should be used when replacing assemblies in the Control Box Failure...

Page 51: ...er the blue wire coming from the cable into the main board Note that its solder pad is labelled ID Unsolder the cable center conductor from the circuit board Remove the tape holding the cable assembly...

Page 52: ...lue at the cable end to aid in distinguishing the P6231 tip from other subminiature probe tips To install a replace ment probe tip simply reverse the procedure READJUSTMENT AFTER REPAIR After any elec...

Page 53: ...lyethylene dunnage or urethane foam between carton and probe al sheeting lowing 2 inches on all sides 3 Cushion the probe on all sides by tightly packing 4 Seal carton with shipping tape or industrial...

Page 54: ...ntify components or assemblies on the diagrams Assembly separable o r repairable circ oit board etc Attenuator fixed or variable M o t o r Batterv Capacitor f i x e d o r variable Circuit breaker Diod...

Page 55: ...al Screwdriver Adjustment Test Voltage Plug to E C Board Panel Adjustment Plug Index Modified Component See Parts List Refer t o Waveform Refer t o Diagram Number SEL Value Selected at Factory Coaxial...

Page 56: ...REV MAR 1987 Figure 7 1 Main circuit board schematic Replaceable Parts P6231...

Page 57: ...FROM MR N BOARD FROM BNC cONNLCTGU lDATA 1 CLOCK CLOCK 5 v R I C 5 0 OHM 1 5 V A ClOlh I T022 uF rn 3 5 v 5 v Figure 7 2 Flexible circuit board schematic Replaceable Parts P6231 REV MAR 1987...

Page 58: ...Figure 7 3 Main circuit board component layout for trouble shooting Replaceable Parts P6231...

Page 59: ...representat vewill contact you concerning any change In part number FIGURE AND INDEX NUMBERS 1 2 3 4 5 Name 8 Description Assembly andlor Component Attachmg parts for Assemhly andlor Component Deta l...

Page 60: ...k t m n i x Seria1 Assent11y No Mfr No Part No Effective Dscont Qty 12345 N m Description Code Mfr PartNo REV WAR 1987 CABLE ASSY RF 50 OH4 COAX 1 9 T I P ASSY PROBE lOX YELLOW BLUE T I P ASSY PROBE l...

Page 61: ...LACK 2 047 L X 0 137 DIA SCREWDR1VER ADJUSTMENT TOOL METAL T I P LEAD ELECTRICAL STRD 26 AWG G O L O N W CLR LEAD ELECTR1CAL O 025 DIA COPPER 2 3 L POUCH ACCESSORY MNUAL TECH INSTR P6231 OPTIONAL ACCE...

Page 62: ...b Replaceable Parts P6231...

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