Fluke 5220A Instruction Manual
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Fluke 5220A Instruction Manual

Transconductance amplifier
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®
5220A

Transconductance Amplifier

Instruction Manual
PN 491936
June 1979 Rev. 3, 6/97
© 1997 Fluke Corporation. All rights reserved. Printed in USA
All product names are trademarks of their respective companies.

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Summary of Contents for Fluke 5220A

  • Page 1: Transconductance Amplifier

    ® 5220A Transconductance Amplifier Instruction Manual PN 491936 June 1979 Rev. 3, 6/97 © 1997 Fluke Corporation. All rights reserved. Printed in USA All product names are trademarks of their respective companies.
  • Page 2 Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available only if product is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price.

  • Page 3: Table Of Contents

    Table of Contents Section Title Page Introduction and Specifications............1-1 1-1. Introduction ..................1-1 1-2. Specifications ..................1-2 Operating Instructions............... 2-1 2-1. Introduction ..................2-1 2-2. Shipping Information................2-1 2-3. Input Power ..................2-1 2-4. Fuse Replacement................. 2-2 2-5. AC Line Fuse ................... 2-2 2-6.
  • Page 4 5220A Instruction Manual 3-8. Preamplifier..................3-6 3-9. A6 Driver ..................3-7 3-10. A7 Output..................3-9 3-11. A8 Analog Control................3-10 3-12. A9 Front Panel ................. 3-11 3-13. A10 Logic ..................3-11 3-14. Reset Logic .................. 3-11 3-15. Timing Logic ................3-13 3-16.
  • Page 5 Contents (continued) 4-40. Resistor R13..................4-17 4-41. Troubleshooting..................4-18 List of Replaceable Parts..............5-1 5-1. Introduction ..................5-1 5-2. How to Obtain Parts ................5-1 5-3. Manual Status Information ..............5-2 5-4. Newer Instruments................5-2 5-5. Service Centers..................5-2 Option and Accessory Information........... 6-1 6-1.
  • Page 6 5220A Instruction Manual...
  • Page 7 List of Tables Table Title Page 1-1. Accessories ......................1-2 1-2. Specifications......................1-2 2-1. Controls, Indicators, and Connectors..............2-4 3-1. Effect of Reset Command on A10 Logic and A9 Front Panel....... 3-13 4-1. Required Test Equipment ..................4-1 4-2. DC Accuracy Test....................4-10 4-3.
  • Page 8 5220A Instruction Manual...
  • Page 9 List of Figures Figure Title Page 5220A Transconductance Amplifier..............x 1-1. Outline Drawings ....................1-5 2-1. Controls, Indicators, and Connectors..............2-3 2-2. Maximum Load Inductance vs Frequency............. 2-8 2-3. Typical Transconductance Error for Inductive Loads ........... 2-9 3-1. 5220A Functional Block Diagram ................. 3-2 3-2.
  • Page 10 5220A Instruction Manual 6-1. Rack Mounting Kit ....................6-2 6-2. Rack Slide Kit......................6-4 7-1. Interconnect Diagram..................... 7-2 7-2. Chassis Wiring....................... 7-4 7-3. Power Supply......................7-6 7-4. A5 Preamplifier PCB Assembly ................7-8 7-5. A6 Driver and A7 Output PCB Assemblies ............7-10 7-6.
  • Page 11 Contents (continued)
  • Page 12 5220A Instruction Manual ajs36f.eps 5220A Transconductance Amplifier...

  • Page 13: Introduction And Specifications

    The Model 5220A is a transconductance amplifier designed to operate as either a stand alone unit or an extension of the Fluke Model 5100 Series Calibrator. Functionally, the instrument operates as a precision ac/dc current source for calibrating current shunts and/or current meters.

  • Page 14: Specifications

    5 220A Instruction Manual selection switches are inside the 5220A. Refer to Section 4 of this manual for information on how to properly set the line power switches. Accessories available for use with the 5220A are listed and described in Table 1-1. The rack mounting kits are designed for use with a standard 19-inch equipment rack.
  • Page 15 Introduction and Specifications Specifications Table 1-2. Specifications (cont.) Electromagnetic Compatibility This instrument is designed to operate in Standard Laboratory environments where in electromagnetic environment is highly controlled. If used in areas with RF fields 0.4 V/m there could be errors in measurement. DC Mode (including 5100 Series B) Output Range 1 to 19.9999 A...
  • Page 16 5 220A Instruction Manual Table 1-2. Specifications (cont.) General Load Capability Drives all resistive and capacitive loads consistent with current and compliance voltage capability. For inductive loads greater than 1 H and less than maximum inductive loads, output current is limited to 16 A rms (22.6 A peak) Maximum Isolation Voltage 20 V dc or 20 V ac rms...
  • Page 17 Introduction and Specifications Specifications ajs01f.wmf Figure1-1. Outline Drawings...
  • Page 18 5 220A Instruction Manual...

  • Page 19: Operating Instructions

    If reshipment of the instrument is necessary, the original container should be used. If the original container is not available, a new container can be obtained from the John Fluke Mfg. Co., Inc. Please reference the instrument’s model number when requesting a new shipping container.

  • Page 20: Fuse Replacement

    The 5220A is designed for either bench-top use or for installation in a standard 19-inch equipment rack using the accessory Rack Mounting Kit (John Fluke P/N M08-205-600). Chassis slides (John Fluke P/N M00-280-610) can also be installed to facilitate access to the instrument when it is installed in an equipment rack. Information regarding the installation of the rack-mounting accessories is included in Section 6.
  • Page 21 Operating Instructions Operating Features ajs02f.wmf Figure 2-1. Controls, Indicators, and Connectors...
  • Page 22 MIS* Bus Connector A 24-pin connector used as an I/O port for remote operation (Fluke MIS Bus) of the 5220A. When the 5220A is interfaced with a 5100 Series Calibrator (by way of a Y5000 interface) the 5220A output can be controlled from the 5100 front panel.

  • Page 23: Operating Notes

    Operating Instructions Operating Notes Table 2-1. Controls, Indicators, and Connectors (cont.) Ref. Name Function Power Connector Provides the means of connecting the 5220A to ac line power by way of a 3-wire power cord. Fuse Holder Houses the ac line fuse and allows easy access for fuse replacement. Ground Connector A binding post positioned to provide a convenient connection to chassis ground.

  • Page 24: Input Voltage Selection, Front/Rear

    5 220A Instruction Manual 2-13. Input Voltage Selection, Front/Rear Selection of the front or rear terminals for control voltage input is manually accomplished by pressing the INPUT push button switch on the front panel. Each depression alternately selects front or rear as indicated by the lit FRONT/REAR LED indicator. This switch is active in the local mode, and inactive in the remote mode.

  • Page 25: Audible Output

    This allows the 5220A to internally control the rate of change. If the control voltage is taken from a Fluke Model 5100 Series Calibrator, the calibrator will limit its output to an acceptable rate of change.
  • Page 26 5 220A Instruction Manual ajs03f.wmf Figure 2-2. Maximum Load Inductance vs Frequency...

  • Page 27: Operation

    Operating Instructions Operation ajs04f.wmf Figure 2-3. Typical Transconductance Error for Inductive Loads 2-20. Operation The following procedure is suggested for operating the 5220A. With reference to the previous paragraphs proceed as follows: 1. Connect the 5220A to the 5100 Series Calibrator via the Y5000 Interface if remote operation is desired.
  • Page 28 5 2 20A Instruction Manual 7. Determine the active output terminals (front or rear) by connecting a short jumper wire between the front-panel CURRENT OUTPUT terminals and then pressing the OPR/STDBY switch. If the OVERCOMPLIANCE LED lights, the rear output terminals are active.

  • Page 29: Theory Of Operation

    The analog section consists of the power supplies, the transconductance amplifier, and associated analog control circuitry. The digital section comprises the logic necessary for overall control, and the interfaces necessary for front panel (local) operation and remote operation by way of the Fluke MIS Bus. 3-4. Analog Section The power supply used in the 5220A provides operating voltages for both the analog and the digital section of the unit.
  • Page 30 5 220A Instruction Manual ajs05f.wmf Figure 3-1. 5220A Functional Block Diagram...
  • Page 31 Theory of Operation Overall Functional Description The transconductance amplifier is a three-stage, closed-loop amplifier whose feedback signal is proportional to the 5220A output (load) current. It consists of the A5 Preamp, the A6 Driver, the A7 Output, and a precision four-terminal shunt. Input voltage to the amplifier is presented, by way of front or rear input terminals, to the A5 Preamp.

  • Page 32: Digital Section

    5 220A Instruction Manual 3-5. Digital Section The logic portion of the 5220A controls the sequencing of input relays (front/rear) and other control signals that turn the transconductance amplifier on and off. It also provides drive commands to light appropriate front panel status LEDs. Inputs to the logic are in the form of local/remote control commands from the front panel switches or the remote MIS Bus Interface, and overload signals from the analog control circuit.
  • Page 33 Theory of Operation Circuit Analysis The A4 Regulator is designed to convert the ac outputs from the three remaining secondary windings of T1 into three sets of isolated and regulated voltages: +5 V dc, +15/-15 V dc, and +5 V dc ISO (isolated). Each voltage is produced using conventional regulating techniques.

  • Page 34: Preamplifier

    5 220A Instruction Manual 3-8. Preamplifier The A5 Preamplifier, as shown in Figure 3-4, is a high-gain amplifier designed to accept a front/rear panel input signal and provide an amplified output to the A6 Driver stage of the transconductance amplifier. It consists of a high-gain differential amplifier with feedback resistors, front/rear input select relays, and turn-on/off control circuitry.

  • Page 35: A6 Driver

    Theory of Operation Circuit Analysis the rate at which the input voltage is applied to the A5 Preamplifier when the 5220A is switched from standby to operate. This is necessary to prevent a step output which, if applied to an inductive load, would result in an overvoltage transient, forcing the 5220A back to standby.
  • Page 36 5 220A Instruction Manual string is used as a voltage source to set the quiescent bias for the remaining stages of the complementary A7 Driver and A7 Output. Variable resistor R13 is used to set the initial bias voltage. ajs10f.wmf Figure 3-5.

  • Page 37: A7 Output

    Theory of Operation Circuit Analysis 3-10. A7 Output The A7 Output is a discrete-component, complementary-output, high-current amplifier which serves as the final output stage of the transconductance amplifier. See Figure 3-6. It consists of a pair of driver transistors, Q101 and Q102; two parallel pair(s) of output transistors, Q103, Q104 and Q105, Q106;...

  • Page 38: A8 Analog Control

    5 220A Instruction Manual 3-11. A8 Analog Control The A8 Analog Control Assembly, as shown in Figure 3-7, contains an overcompliance detector, an overcurrent detector and two TTL-to-FET level shifters. The detection circuits are used to switch the 5220A to standby when an overcurrent or overcompliance condition occurs.

  • Page 39: A9 Front Panel

    Theory of Operation Circuit Analysis it were a logic level. That is, voltages from 0 to an approximate 2 V threshold are considered a low logic level. A high logic level is approximately 2 to 4.5 V. The TTL-to-FET level shifters are used to interface turn on/off commands TTL logic levels, T1 and T2, from the A10 Logic with the standby/operate control FETs in the transconductance amplifier.
  • Page 40 5 220A Instruction Manual ajs13f.wmf Figure 3-8. A10 Logic Simplified Block Diagram Loss or interruption of the +15/-15 V dc supply output causes the Line Mon (monitor) input from the power supply to go low. Normally, the line monitor input is a clipped full- wave rectified 60 Hz waveform which is generated on the A4 Regulator Assembly.

  • Page 41: Timing Logic

    Theory of Operation Circuit Analysis input is present. Under normal operating condition the reset command is high at U9-10 and low at U3-10. When the 5220A is switched from remote to local operation the local/remote logic triggers monostable U11-10 in the reset logic circuit. The result is a momentary positive- going pulse at the Q output of U11-10.

  • Page 42: Standby/Operate Logic

    5 220A Instruction Manual The shift-right mode is selected when flop-flop U17-1 responds to an operate command (D-input low) and drives the register’s S0 input high and the S1 input low. This results in the high input at U22-2 being sequentially propagated through the register and its four outputs (QD, QC, QB and QA) being driven high (operate).

  • Page 43: Local/Remote Logic

    Theory of Operation Circuit Analysis indicates standby, high indicates operate. The not Operate signal is received from the A11 MIS Bus Interface and is effective only when the 5220A is in the remote control mode. In the high state, the signal clears flip-flop U10-9 to invoke the standby mode. When not Operate goes low it presets flip-flop U10-9 (by way of U8-7) to invoke the operate mode.

  • Page 44: Failure Status Logic

    5 220A Instruction Manual 3-19. Failure Status Logic The failure status logic consists of three D-type flip-flop (U16-1, U16-13, and U17-13) and their associated logic gates and drivers. Its function is to store failure conditions detected by other parts of the A10 Logic and to drive the front panel STATUS indicators. An optical isolator is also included for providing an Interface Overload Status signal to the A11 MIS Bus Interface.
  • Page 45 Theory of Operation Circuit Analysis enabled so that a status read can take place when BC0 and BC2 go high. Status read causes the w/not R line to go low for the duration of the BC0 and BC2 inputs. At the end of status read, the RS flop-flop is reset, closing the w/not R gate (U5-8) until it is reopened by another programming input.
  • Page 46 5 220A Instruction Manual 3-18...

  • Page 47: Maintenance

    Table 4-1. Required Test Equipment Equipment Type Required Specifications Recommended Type DC and AC Voltage Calibrator 0 to 20 V dc 0.002 % Fluke Model 5700A Digital Multimeter 0 to 20 V dc 0.002 %, Resolution: 1 V HP3458A Precision Shunt 0.01 0.01 % dc, 0.035 % ac to 5 kHz...

  • Page 48: Service Information

    The 5220A is warranted for a period of 1-year upon delivery to the original purchaser. The warranty is located on the back of the title page. Factory authorized calibration and service for each Fluke product is available at various worldwide locations. A complete list of these service centers is included in Section 7 of this manual.
  • Page 49 Maintenance General Maintenance ajs15f.wmf Figure 4-1. Internal Component/Assembly Locations Caution To prevent component damage observe static awareness precautions during instrument disassembly/assembly. Refer to the yellow insert sheet following Section 1.

  • Page 50: Internal Components/Assemblies

    5 220A Instruction Manual 4-7. Internal Components/Assemblies All internal switches, fuses, and calibration adjustments can be accessed by removing the top cover and the large inner cover from the 5220A. The location of each of the applicable components is shown in Figure 4-1. Procedures for setting, replacing, and/or adjusting these components are given later in this section of the manual.

  • Page 51: A6 Driver And A7 Output Assembly Removal

    Maintenance General Maintenance 4-11. A6 Driver and A7 Output Assembly Removal The A6 Driver and A7 Output PCB Assemblies comprise a plug-in assembly referred to in this procedure as the A6 Driver/A7 Output. Use the following procedure to remove the A6 Driver/A7 Output: 1.

  • Page 52: Fuse Replacement

    5 220A Instruction Manual 4-14. Fuse Replacement 4-15. Ac Line Fuse The ac line fuse is accessible by way of a rear-panel fuse holder located to the left of the input power connector. If fuse replacement is required, disconnect the 5220A from line power and remove the fuse cap and fuse (twist the fuse cap ccw using a screwdriver).

  • Page 53: Output Terminal Selection, Front/Rear

    Maintenance General Maintenance ajs16f.wmf Figure 4-2. Line Voltage Selection 4-18. Output Terminal Selection, Front/Rear Either the front or rear output terminals (but not both simultaneously) may be selected to provide the current output connections. The active terminals are determined by the position of a pair of screws that serve as output jumpers.

  • Page 54: Service Tools

    5 220A Instruction Manual Caution To ensure proper instrument operation make sure that both screws are installed and that they are both in either the FRONT or REAR locations. 1. Disconnect the 5220A from line power. 2. Remove both the top and large inner covers from the 5220A. 3.

  • Page 55: Front Panel Tests

    Maintenance Performance Test 4-22. Front Panel Tests Use the following procedure to check the operation of the 5220A front-panel controls and LEDs: 1. With the unit in the standby mode, connect jumper wires between the enabled (front/rear) output terminals. Use a 4-inch length of 16-gauge insulated wire. 2.

  • Page 56: Dc Accuracy And Line Regulation

    5 220A Instruction Manual 4-24. DC Accuracy and Line Regulation The following procedure is used to check the dc accuracy of the 5220A output current: 1. Connect the precision shunt to the enabled output terminals on the 5220A. 2. Connect the DVM to the sense terminals on the precision shunt. Observe polarity. 3.

  • Page 57: Frequency Response

    Maintenance Performance Test 7. Set the 5220A to the standby mode. 8. Disconnect the load resistor and the distortion analyzer from the 5220A output terminals. 4-26. Frequency Response Note When high ac currents at high frequencies are being used, and minimization of inductive coupling is required, it is recommended that you twist the current carrying leads between the 5220A and load.

  • Page 58: Overvoltage Trip Test

    5 220A Instruction Manual 4. Increase the ac voltage calibrator output in 1.0V rms increments. The 5220A should switch to the standby mode at between 20.0 and 24.0 V rms. The OVERCURRENT LED should also light. 5. Set the ac voltage calibrator output to zero volts. 6.

  • Page 59: Initial Conditions

    Maintenance Calibration Adjustments 4-30. Initial Conditions Before starting the following procedures, condition the 5220A as follows: 1. Disconnect all input and remote connections to the 5220A, and connect a short jumper wire between the selected output terminals. 2. Connect the unit to line power and set the POWER switch to ON. Only the STDBY and FRONT LEDs should light.

  • Page 60: Output Bias Adjustment

    5 220A Instruction Manual 4-33. Output Bias Adjustment This procedure is used to adjust the bias current for both the A6 Driver and the A7 Output. The bias adjustment (R13) is located on the A6 Driver PCB Assembly. 1. Connect the ac voltage calibrator to the front-panel VOLTAGE INPUT terminals on the 5220A.

  • Page 61: Overcurrent Adjustment

    Maintenance Replacement of Selected Components 8. Set the 5220A to the standby mode. 9. Disconnect the shunt and voltmeter from the 5220A output terminals. 4-36. Overcurrent Adjustment This procedure is used to adjust the overcurrent trip level of the 5220A. The overcurrent adjustment (R21) is located on the A8 Analog Control PCB Assembly.

  • Page 62: Resistors R11 And R12

    5 220A Instruction Manual 4-39. Resistors R11 and R12 Resistors R11 and R12 are associated with the Input Offset Adjustment procedure and the setting of the ZERO ADJ potentiometer R6. Use the following procedure to select the proper replacements for R11 and R12: 1.

  • Page 63: Resistor R13

    Maintenance Replacement of Selected Components Table 4-4. Replacement Resistors for R11 and R12 DVM Reading ( mV dc) Selected Value for R11/R12 Fluke Part Number 0.87 to 0.174 1.00 k 168229 0.175 to 0.261 2.00 k 235226 0.262 to 0.348 3.01 k...

  • Page 64: Troubleshooting

    5 220A Instruction Manual Table 4-5. Replacement Resistors for R13 Corrected DVM Indication (mV dc) Selected Value for R13 ( ) Fluke Part Number 102.000 to 101.800 1740 357756 101.800 to 101.600 1500 376947 101.600 to 101.400 1282 330472 101.400 to 101.200...
  • Page 65 Maintenance Troubleshooting ajs17f.wmf Figure 4-3. Test Point Location/Identification 4-19...
  • Page 66 5 220A Instruction Manual ajs18f.wmf Figure 4-4. Flowchart Summary of Mainframe and Digital Section Troubleshooting Guide 4-20...
  • Page 67 Maintenance Troubleshooting Table 4-6. Mainframe and Digital Section Troubleshooting Guide Step Instruction Go to Set the 5220A POWER switch to OFF and disconnect the unit from line power. Remove the top cover and the large inner cover from the 5220A. Visually inspect the internal fuses (F2 through F7) and replace as required.
  • Page 68 5 220A Instruction Manual Table 4-6. Mainframe and Digital Section Troubleshooting Guide (cont.) Step Instruction Go to Check the line voltage switch settings on A2 Transformer Assembly. They should be set to comply with the local line voltage. If some voltages are in limits and some are out, the problem is on the A4 Regulator or the A3 Cap Bus.
  • Page 69 Maintenance Troubleshooting Table 4-6. Mainframe and Digital Section Troubleshooting Guide (cont.) Step Instruction Go to The mainframe and digital section are operational; the transconductance amplifier (A5, A6, A7) is defective. Check out and repair the transconductance amplifier using Table 4-7, Analog Section Troubleshooting Guide.
  • Page 70 5 220A Instruction Manual ajs19f.wmf Figure 4-5. Flowchart Summary of Analog Section Troubleshooting Guide 4-24...
  • Page 71 Maintenance Troubleshooting Table 4-7. Analog Section Troubleshooting Guide Step Instruction Go to Complete the troubleshooting procedure given in Table 4-6. Set the 5220A POWER switch to OFF. Connect a jumper wire between the front panel VOLTAGE INPUT terminals. Connect a 0.1 resistor between the selected output terminals, then connect a DVM across the 0.1 resistor.
  • Page 72 5 220A Instruction Manual Table 4-7. Analog Section Troubleshooting Guide (cont.) Step Instruction Go to Set the 5220A to the operate mode and read the DVM. Does the DVM read approximately +0.1 V dc? Does the DVM read approximately 0 V? Check relay K1 and associated drive circuits on the A5 Preamplifier PCB Assembly.

  • Page 73: List Of Replaceable Parts

    Electrical components may be ordered directly from the manufacturer by using the manufacturers part number, or from the Fluke Corporation and its authorized representatives by using the part number under the heading FLUKE STOCK NO. In the U.S., order directly from the Fluke Parts Dept. by calling 1-800-526-4731. Parts price information is available from the Fluke Corporation or its representatives.

  • Page 74: Manual Status Information

    5-5. Service Centers To locate an authorized service center, call Fluke using any of the phone numbers listed below, or visit us on the World Wide Web: www.fluke.com 1-800-443-5853 in U.S.A and Canada...
  • Page 75 List of Replaceable Parts Service Centers MIS Bus Interface PCB 491266 Assembly Output Termination PCB 491274 Assembly...
  • Page 76 5 220A Instruction Manual Table 5-1. 5220A Final Assembly Reference Fluke Part Total Designator Description Quantity Motherboard PCB Assembly 491209 Power Transformer Assembly 491282 Capacitor Bus PCB Assembly 476994 Regulator PCB Assembly 489690 Preamplifier PCB Assembly 947205 Driver PCB Assembly...
  • Page 77 List of Replaceable Parts Service Centers Table 5-1. 5220A Final Assembly (cont.) Reference Fluke Part Total Designator Description Quantity Washer, Lock, Internal, Steel, #4 110403 Nut, Machine, Hex, Steel, 4-40 110635 Screw, Machine, PH, P, Steel, 6-32 x 0.500 152173...
  • Page 78 5 220A Instruction Manual Table 5-1. 5220A Final Assembly (cont.) Reference Fluke Part Total Designator Description Quantity MP18 Output Bus, Plus- Aft 486542 MP19 Output Bus, Spacer 486559 MP20 Assembly, Red 10-32 Binding Post Bracket 794404 MP21 Assembly, Black 10-32 Binding Post Bracket...
  • Page 79 472795 MP55 Cover, Shunt 489948 R2, R5 Resistor, CC, 100, 10 %, 2 W 109934 5220A Instruction Manual 491936 VR1, VR2 Zener, Transient Suppressor, 7.5 V, 10 % 904896 Line Cord, 5-15/IEC, 3-18 AWG, SVT, 7.5 ft 284174 Cable, Fan/Power...
  • Page 80 5 220A Instruction Manual ajs20f.wmf Figure 5-1. 5220A Final Assembly...
  • Page 81 List of Replaceable Parts Service Centers ajs21f.wmf Figure 5-1. 5220A Final Assembly (cont.)
  • Page 82 5 220A Instruction Manual ajs22f.wmf Figure 5-1. 5220A Final Assembly (cont.) 5-10...
  • Page 83 List of Replaceable Parts Service Centers ajs23f.wmf Figure 5-1. 5220A Final Assembly (cont.) 5-11...
  • Page 84 5 220A Instruction Manual ajs24f.wmf Figure 5-1. 5220A Final Assembly (cont.) 5-12...
  • Page 85 List of Replaceable Parts Service Centers ajs25f.wmf Figure 5-1. 5220A Final Assembly (cont.) 5-13...
  • Page 86 5 220A Instruction Manual ajs26f.wmf Figure 5-1. 5220A Final Assembly (cont.) 5-14...
  • Page 87 List of Replaceable Parts Service Centers ajs27f.wmf Figure 5-1. 5220A Final Assembly (cont.) 5-15...
  • Page 88 5 220A Instruction Manual ajs28f.wmf Figure 5-1. 5220A Final Assembly (cont.) 5-16...
  • Page 89 List of Replaceable Parts Service Centers Table 5-2. A1 Motherboard PCB Assembly Reference Fluke Total Designator Description Part No. Quantity J10, J20, J30, Connector, PCB Edge, Rec., 0.150 CTR, 40 Position 422550 J40, J50, J70, J90 Header, 1 Row, 0.156 CTR, 10 Pin...
  • Page 90 5 220A Instruction Manual Table 5-3. A2 Power Transformer Assembly Reference Fluke Total Designator Description Part No. Quantity F4 – F7 Fuse, 0.25 x 1.25, 0.5 A, 250 V, Slow 109322 Screw, Machine, PH, P, Steel, 8-32 x 0.250 228890 Screw, Machine, PH, P, Steel, 6-32 x 0.250...
  • Page 91 List of Replaceable Parts Service Centers Table 5-4. A3 Capacitor Bus PCB Assembly Reference Fluke Total Designator Description Part No. Quantity C1 – C8 Capacitor, AL, 50,000 F, +100-10 %, 15 V, Hi Term 432525 CR1, CR3 Diode, SI, 50 PIV, 20.0 A...
  • Page 92 5 220A Instruction Manual ajs38f.wmf Figure 5-4. A3 Capacitor Bus PCB Assembly 5-20...
  • Page 93 List of Replaceable Parts Service Centers Table 5-5. A4 Regulator PCB Assembly Reference Fluke Total Designator Description Part No. Quantity C9, C10, C16, C17 Capacitor, AL, 4700 F, +75-20 %, 16 V 379370 C11, C14, C15, C18 Capacitor, TA, 22 F, 20 %, 25 V...
  • Page 94 5 220A Instruction Manual ajs39f.wmf Figure 5-5. A4 Regulator PCB Assembly 5-22...
  • Page 95 List of Replaceable Parts Service Centers Table 5-6. A5 Preamplifier PCB Assembly Reference Fluke Total Designator Description Part No. Quantity C1, C2 Capacitor, CER, 100 pF, 2 %, 100 V, COG 512848 C3, C5, C6 Capacitor, CER, 0.22 F, 20 %, 50 V, Z5U 309849 Capacitor, Variable,1 –...
  • Page 96 5 220A Instruction Manual Table 5-6. A5 Preamplifier PCB Assembly (cont.) Reference Fluke Total Designator Description Part No. Quantity Resistor, MF, 422 , 1 %, 0.125 W, 100 PPM 288506 R21, R23 Resistor, CF, 1 k, 5 %,, 0.25 W 343426 Resistor, CF, 1.2 k, 5 %, 0.25 W...
  • Page 97 List of Replaceable Parts Service Centers ajs40f.wmf Figure 5-6. A5 Preamplifier PCB Assembly 5-25...
  • Page 98 5 220A Instruction Manual Table 5-7. A6 Driver PCB Assembly Reference Fluke Total Designator Description Part No. Quantity Capacitor, Polyester, 0.027 F, 10 %, 250 V 267120 Capacitor, TA, 6.8 F, 20 %, 35 V 363713 C3, C4 Capacitor, CER, 180 pF, 10 % 1000 V, S3N...
  • Page 99 List of Replaceable Parts Service Centers Table 5-7. A6 Driver PCB Assembly (cont.) Reference Fluke Total Designator Description Part No. Quantity R28, R29 Resistor, CF, 6.8 k, 5 %, 0.25 W 368761 R30, R31 Resistor, CC, 10 , 10 %, 0.5 W 108092 TP1 –...
  • Page 100 5 220A Instruction Manual Table 5-8. A7 Output PCB Assembly Reference Fluke Total Designator Description Part No. Quantity Screw, Machine, PH, P, Steel, 4-40 x 0.375 152124 Washer, Lock, Internal, Steel, #4 110403 Nut, Hex, S. Steel, 4-40 147611 Screw, Machine, PH, P, Steel, 6-32 x 0.250 152140 Screw, Machine, PH, P, Steel, 6-32 x 0.750...
  • Page 101 List of Replaceable Parts Service Centers ajs42f.wmf Figure 5-8. A7 Output PCB Assembly 5-29...
  • Page 102 5 220A Instruction Manual ajs43f.wmf Figure 5-8. A7 Output PCB Assembly (cont.) 5-30...
  • Page 103 List of Replaceable Parts Service Centers Table 5-9. A8 Analog Control PCB Assembly Reference Fluke Total Designator Description Part No. Quantity Capacitor, CER, 0.10 F, 20 %, 50 V, X7R 853650 Capacitor, Polyester, 0.22 F, 10 %, 100 V 436113 Capacitor, TA, 0.68 F, 10 %, 35 V...
  • Page 104 5 220A Instruction Manual ajs44f.wmf Figure 5-9. A8 Analog Control PCB Assembly 5-32...
  • Page 105 List of Replaceable Parts Service Centers Table 5-10. A9 Front Panel PCB Assembly Reference Fluke Total Designator Description Part No. Quantity Capacitor, CER, 0.22 F, 20 %, 50 V, Z5U 309849 DS1 – DS9 LED, Red, PCB mount, Luminous Intensity = 0.5 MCD...
  • Page 106 5 220A Instruction Manual Table 5-11. A10 Logic PCB Assembly Fluke Total Reference Designator Description Part No. Quantity C1, C3, C4 148494 Capacitor, Mica, 100 pF, 5 %, 500 V 161943 Capacitor, TA, 4.7 F, 20 %, 25 V 161927 Capacitor, TA, 2.2 F, 20 %, 20 V...
  • Page 107 List of Replaceable Parts Service Centers ajs30f.wmf Figure 5-11. A10 Logic PCB Assembly 5-35...
  • Page 108 5 220A Instruction Manual Table 5-12. A11 MIS Bus Interface PCB Assembly Reference Fluke Total Designator Description Part No. Quantity Capacitor, TA, 4.7 F, 20 %, 25 V 161943 Capacitor, TA, 22 F, 20 %, 15 V 423012 C3, C4 Capacitor, CER, 0.22 F, 20 %, 50 V, Z5U...
  • Page 109 List of Replaceable Parts Service Centers ajs31f.wmf Figure 5-12. A11 MIS Bus PCB Assembly 5-37...
  • Page 110 5 220A Instruction Manual Note The A12 shunt assembly is a suggested non-repairable assembly. Table 5-13. A12 Shunt Assembly Reference Fluke Total Designator Description Part No. Quantity Screw, Machine, SEMS, PH, P, Steel, 6-32 x 0.500 177030 Screw, Machine, RH, SL, Steel, 6-32 x 2.750...
  • Page 111 List of Replaceable Parts Service Centers ajs32f.wmf Figure 5-13. A12 Shunt Assembly 5-39...
  • Page 112 5 220A Instruction Manual Table 5-14. A13 Output Termination PCB Assembly Reference Fluke Total Designator Description Part No. Quantity Capacitor, CER, 0.025 F, 20 %, 100 V, Z5W 168435 Capacitor, CER, 0.1 F, +80-20 %, 25 V, Z5U 369199 Resistor, MF, 40.2, 1 %, 0.125 W, 100 PPM 245373 Resistor, CF, 10 , 5 %, 0.25 W...
  • Page 113 List of Replaceable Parts Service Centers Table 5-15. A14 Extender PCB Assembly Reference Fluke Total Designator Description Part No. Quantity Screw, Machine, SEMS, PH, P, Steel, 6-32, 0.250 178533 Rivet, S-Tub, Oval, Steel, 0.118 x 0.218 103606 Connector, PCB Edge, REC, 0.150 CTR, 40 Position...
  • Page 114 5 220A Instruction Manual 5-42...

  • Page 115: Option And Accessory Information

    Section 6 Option and Accessory Information 6-1. Introduction This section of the manual documents the options and accessories available for use with the 5220A. Currently, there are no options, and the accessories are limited to a choice of two rack-mounting kits and a precision current shunt for calibration purposes. Each is described in the following accessories subsection.
  • Page 116 5 220A Instruction Manual ajs45f.wmf Figure 6-1. Rack Mounting Kit...

  • Page 117: Rack Slide Kit (M00-280-610)

    Option and Accessory Information Accessories 6-4. Rack Slide Kit (M00-280-610) The 5220A can be rack mounted in a 24-inch deep equipment rack using the Rack Slide Kit, model M00-280-610. Use the following procedure to install the kit: 1. Remove the horizontal side trim decal from both sides of the instrument. 2.
  • Page 118 5 220A Instruction Manual ajs46f.wmf Figure 6-2. Rack Slide Kit...

  • Page 119: Schematic Diagrams

    Chapter 7 Schematic Diagrams...
  • Page 120 5220A Instruction Manual 5220A-1001 (Sheet 1 of 2) ajs47f.wmf Figure 7-1. Interconnect Diagram...
  • Page 121 Schematic Diagrams ajs48f.wm Figure 7-1. Interconnect Diagram (cont.)
  • Page 122 5220A Instruction Manual ajs49f.wmf Figure 7-2. Chassis Wiring...
  • Page 123 Schematic Diagrams ajs50f.wmf Figure 7-2. Chassis Wiring (cont.)
  • Page 124 5220A Instruction Manual ajs51f.wmf Figure 7-3. Power Supply...
  • Page 125 Schematic Diagrams ajs52f.wmf Figure 7-3. Power Supply (cont.)
  • Page 126 5220A Instruction Manual ajs53f.wmf Figure 7-4. A5 Preamplifier PCB Assembly...
  • Page 127 Schematic Diagrams ajs54f.wmf Figure 7-4. A5 Preamplifier PCB Assembly (cont.)
  • Page 128 5220A Instruction Manual ajs55f.wmf Figure 7-5. A6 Driver and A7 Output PCB Assemblies 7-10...
  • Page 129 Schematic Diagrams ajs56f.wmf Figure 7-5. A6 Driver and A7 Output PCB Assemblies (cont.) 7-11...
  • Page 130 5220A Instruction Manual ajs57f.wmf Figure 7-6. A8 Analog Control PCB Assembly 7-12...
  • Page 131 Schematic Diagrams ajs58f.wmf Figure 7-6. A8 Analog Control PCB Assembly (cont.) 7-13...
  • Page 132 5220A Instruction Manual ajs59f.wmf Figure 7-7. A9 Front Panel PCB Assembly 7-14...
  • Page 133 Schematic Diagrams ajs60f.wmf Figure 7-7. A9 Front Panel PCB Assembly (cont.) 7-15...
  • Page 134 5220A Instruction Manual ajs61f.wmf Figure 7-8. A10 Logic PCB Assembly 7-16...
  • Page 135 Schematic Diagrams ajs62f.wmf Figure 7-8. A10 Logic PCB Assembly (cont.) 7-17...
  • Page 136 5220A Instruction Manual ajs63f.wmf Figure 7-9. A11 MIS Bus Interface PCB Assembly 7-18...
  • Page 137 Schematic Diagrams ajs64f.wmf Figure 7-9. A11 MIS Bus Interface PCB Assembly (cont.) 7-19...
  • Page 138 5220A Instruction Manual 7-20...

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