TM 11-6625-2941-14&P TECHNICAL MANUAL OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST FOR COUNTER, ELECTRONIC, DIGITAL READOUT AN/USM-459 (HEWLETT-PACKARD MODEL 5328A/E42) (NSN 6625-01-061-8928) HEADQUARTERS, DEPARTMENT OF THE ARMY MARCH 1979
This manual contains copyright material reproduced by permission of the Hewlett-Packard Company. TM 11-6625-2941-14 + P Technical Manual No.
Model 5328A Table of Contents TABLE OF CONTENTS Page Section GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1. Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4. Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6. Instrument Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8. Applications . . . . . . .
Model 5328A Table of Contents TABLE OF CONTENTS (Continued) Section IV Page THEORY OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-3. Overall Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-5. Basic Counter Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4-7.
Model 5328A Table of Contents TABLE OF CONTENTS (Continued) Page Section V VI Vll MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1. Assembly Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3. Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5.
Model 5328A List of Tables LIST OF TABLES Page Table 1-1. 1-2. 1-3. Equipment Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 1-2 Accessories Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5328A Counter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 3-1. 3-2. 3-3. 3-4. 3-5. 3-6. Arming Status . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 5328A List of Figures LIST OF FIGURES 4-1. 4-2. 4-3. 4-4. 4-5. 4-6. 4-7. 4-8. 4-9. 4-10. Basic Elements of the Frequency Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . Measuring Period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Basic Elements of a Time interval Counter . . . . . . . . . . . . . . . . . . . . . . . . . . Clock Pulses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Model 5328A Safety Considerations SAFETY CONSIDERATIONS GENERAL This is a Safety Class I instrument. This instrument has been designed and tested according to IEC Publication 348, “Safety Requirements for Electronic Measuring Apparatus.” OPERATION BEFORE APPLYING POWER verify that the power transformer primary is matched to the available line voltage and the correct fuse is installed (see Section II).
Model 5328A Safety Considerations WARNING IF THIS INSTRUMENT IS TO BE ENERGIZED VIA AN AUTOTRANSFORMER (FOR VOLTAGE REDUCTION] MAKE SURE THE COMMON TERMINAL IS CONNECTED TO THE EARTHED POLE OF THE POWER SOURCE. WARNING BEFORE SWITCHING ON THE INSTRUMENT, THE PROTECTIVE EARTH TERMINALS OF THE INSTRUMENT MUST BE CONNECTED TO THE PROTECTIVE CONDUCTOR OF THE (MAINS) POWER CORD. THE MAINS PLUG SHALL ONLY BE INSERTED IN A SOCKET OUTLET PROVIDED WITH A PROTECTIVE EARTH CONTACT.
Model 5328A General Information Figure 1-1.
TM 11-6625-2941-14&P SECTION O INTRODUCTION 0 - 1 . SCOPE T h i s m a n u a l d e s c r i b e s C o u n t e r , E l e c t r o n i c , Digital Readout AN/USM-459 and provides instructions for operation and maintenance. Throughout this manual, the AN/USM-459 is referred to as Hewlett-Packard Model 5328A Counter. 0-2. INDEXES OF PUBLICATIONS DA Pam 310-4. Refer to the latest issue of DA Pam 310-4 to determine a.
Model 5320A General Information SECTION I GENERAL INFORMATION 1-1. SCOPE OF MANUAL 1-2. This manual provides operating and service information for the Hewlett-Packard Model 5328A/H42 500 MHz Universal Frequency Counter. (In this manual its name will be abbreviated to “5328A” or “counter”.) A separate operators booklet contains condensed operator instructions. 1-3.
Model 5328A General Information 1-8. APPLICATIONS 1-9. Specific applications information is provided in Section III of this manual. The general application features of the 5328A are described in the following paragraphs. 1-10. The high sensitivity, frequency range, and signal conditioning controls (see Table 7-3) make the 5328A suited for a wide range of applications. 1-11.
Model 5328A General Information Table 1-3. 5328A Counter Specifications GENERAL Power Requirements: 115 or 230 volts 60 or 400 Hz ac. Display: Nine-digit LED. Sample Rate: Variable from less than 2 milliseconds to HOLD. Arming: Rear panel ARM (ON-OFF) switch. Refer to operation for details. Blanking: Unwanted zeros to left of mostsignificant-digit are suppressed. Hold: HOLDS count between samples. Trigger Light: Indicates input is above trigger level.
Model 5328A General Information Table 7-3. 5328A Counter Specifications (Continued) CHANNEL C Input Characteristics Range: 30 MHz to 500 MHz direct count Sensitivity: 15 mV rms, 30 MHz—500 MHz Trigger level: 0 volts Impedance: 50fl nominal Maximum Input: 5 volts rms Input protection: Input BNC fused; accessible from front panel. protected to 200 volts peak. overload Indicator: flashing indicator warns of potential overload conditions. Resolution: 1 MHz to 0.
Model 5328A Installation SECTION II INSTALLATION 2-1. INTRODUCTION 2-2. This section provides instructions for unpacking, inspection, preparation for use, shipment, and storage. 2-3. UNPACKING AND INSPECTION 2-4. If the shipping carton is damaged, inspect the counter for visible damage (scratches, dents, etc.). If the counter is damaged, notify the carrier and the nearest Hewlett-Packard Sales and Service Office immediately (offices are listed at the back of this manual).
Model 5328A Installation 2-11. To accommodate the different power receptacles used throughout the world, this instrument is supplied with one of the power cables shown in Figure 2-7. The cable supplied for use in the United States meets the specifications established by the International Electrotechnical Commission (lEC). The male connector of this cable is a NEMA type and the female connector is a C.E.E. type. 2-12. Connect the power cable to a power source receptacle that has a grounded third conductor.
Model 5328A Installation 2-24. Other Packaging Methods 2-25. If factory packaging is not available, good commercial packing should be used. Contract packaging companies in many cities can provide dependable custom packaging on short notice. The following general instructions should be followed when repackaging with commercially available materials. a.
Model 5328A Operation SECTION Ill OPERATION (OPERATORS 3-1. INSTRUCTIONS) INTRODUCTION 3-2. This section contains information necessary to understand how to control and use the counter. Specific details and examples are provided for making measurements of frequency, period, period average, time interval and time interval average, and ratio. How to use the external frequency standard input is described.
Model 5328A Operation Figure 3-1. Measuring Linearity 3-9. PERIOD MEASUREMENTS 3-10. The PERIOD and PERIOD AVG functions allow single period measurement or multiple period averages to be made on input signals into Channel A for frequencies up to 10 MHz. These modes are useful for making low frequency measurements where maximum resolution is desired. 3-11.
Model 5328A Operation 3-13. TIME INTERVAL MEASUREMENTS 3-14. One of two time interval functions can be selected, time interval or time interval average. These functions measure the time interval between a START signal at the Channel A input and STOP signal at the Channel B input. If both the START and the STOP signals are derived from the same signal, place the COM A-SEP in COM A position.
Model 5328A Operation 3–18. To set up a time interval measurement, the marker outputs may be monitored on an oscilloscope (see Figure 3-5) to indicate where the channels are triggering with relation to the time interval of interest. The GATE/MARKER OUT is high during the time interval being measured. Figure 3-5. Monitoring Marker Outputs 3–19. In T.I. A-B and T.I. AVG A-B with the rear panel ARM switch OFF, the counter is armed by the run down of the SAMPLE RATE control.
Model 5328A Operation 1. 2. 3. LINE switch 0. In STBY position with light on, supplies power to oven of the high stability time base to maintain a constant temperature for the crystal. In OPER position, supplies normal operating power to the instrument. RESET button~. Resets display and internal count to zero. When continuously depressed, lights all segments of the LED display and all annunciator LED’s for LED test. Returns 5328A to LOCAL CONTROL when HP-IB Interface is in use. FUNCTION selector~.
Model 5328A Operation Figure 3-6.
Model 5328A Operation Figure 3-7.
Model 5328A Operation 3-25. FUNCTION OF CONTROLS, INDICATORS, INPUTS, AND OUTPUTS 3-26. The following paragraphs provide a detailed description of the function of controls, indicators, and connectors. 3-27. Display 3-28. The 5328A counter display consists of nine-digit, seven-segment LED display and annunciators for indicating the measurement units of Hz, s, as well as multiplier indicators (K, m, ~, n).
Model 5328A Operation Table 3-1. Arming Status 3-37. Frequency Resolution, N Switch 3-38. The FREQUENCY RESOLUTION, N switch determines the amount of time that the counter’s main gate is open for a particular measurement when the Main Gate FF (refer to Section IV) determines the gate time. Depending on the measurement, this time results in a certain measurement resolution (e.g., frequency measurements), a number of intervals averaged (e.g., T.1.
Model 5328A Operation 3-40. Input Channel Section 3-41. Two separate inputs are provided on the right side of the panel. The A and B inputs are identical in specification and identical controls are provided for each input to allow maximum versatility and accuracy. 3-42. HP-IB PROGRAMMABLE INPUT CONTROLS. In COM A position, the output of the Channel B attenutor is disconnected. The output of the Channel A attenuator is routed to the A and B input amplifiers as shown in Figure 3-8.
Model 5328A Operation 3-47. SLOPE SWITCH. The ±SLOPE switch (provided for each channel) determines which slope of the input signal will trigger the counter. As a simple example, (Figure 3-9) if the pulse width of a positive pulse is to be measured, the A channel slope switch would be set to “+” and the B channel would be set to “-” (for time interval measurements the A channel always begins the measurement and the B channel ends the measurement).
Model 5328A Operation 3-49. Channel C Input 3-50. The CHANNEL C 500 MHz 500 input is useful for higher frequency signals out of the A and B input channel range (0 to 100 MHz). CAUTION The “C” channel input signal should be limited to 5 volts maximum. If this limit is exceeded the inline fuse may open (blow). 3-51. “C” Channel Overload lndicator 3-52. The OVERLOAD (CHANNEL C) indicator will flash on and off if the voltage maximum is exceeded at the “C” channel input. 3-53.
Model 5320A Operation 3-59. Marker Outputs 3-60. Two marker output connectors are mounted on the front panel. These outputs represent the Channel A and Channel B Schmitt triggers. The outputs provide 0 to 300 mV levels into 50Q delayed by less than 20 ns. These outputs are useful for oscilloscope monitoring, Time interval measurement setups are simplified if the time interval of interest and the marker outputs can be simultaneously displayed on oscilloscope traces.
Model 5328A Operation 3-73. The five right-hand switches, AS through A1, set the talk and listen addresses to the 5328A when it is used in the ADDRESSABLE mode. Table 3-4 shows the possible address settings and the corresponding ASCII codes for talk and listen addresses. Table 3-4.
Model 5320A Operation 3–74. Table 3–5 gives the program code set for the 5328AF/096\H42. All Function, Frequency Resolution, N and Channel A/B Signal Conditioning are analogous to the corresponding frontpanel operations described previously. Table 3-5.
Model 5328A Operation 3-75. MEASUREMENT OUTPUT FORMAT 3-76. The 5328AF/096/H42 transmits the following string of characters to output a measurement: 3-77. BUS COMMANDS 3-78. The 5328AF/096/H42 obeys the following HP-1 B Universal Commands and Addressed Commands (ASCII codes shown in parenthesis and in Table 3-6). a. Universal Commands: LLO Local Lockout (ASCII DC1) Disables all programmable front panel controls including reset. Go To Local (GTL) must be programmed to return to manual control.
Model 5328A Operation b. Addressed Commands: GTL Go To Local (ASCII SOH) Returns the 5328A to local (manual) control from remote control. SDC Selected Device Clear (ASCII EOT) Responds as with Device Clear or program code “P”. GET Group Execute Trigger (ASCII BS) Starts a measurement. This command provides the quickest method to start a measurement cycle. Table 3-6.
Model 5328A Operation 3-79. PROGRAM EXAMPLES 3-80. The following examples illustrate the programming capability of the 5328AF/096/H42, using the HP9825A Desktop Computer as a computing controller. 3-81. Example 1 3-82. This program sets the 5328AFA/096/H42 into its CHECK mode, with 1 Hz resolution. The program takes a measurement (trg 701) and reads it into the A register of the HP9825A. After waiting 500 ms, the program loops back to line 1 for the next trigger.
Model 5328A Operation 3-83. Example 2 3-84. This program sets the 5328AF/096/H42 into its Frequency mode with 1Hz resolution. The program takes a frequency measurement, reads it into the A register of the HP9825A, and prints the results. The calculator computes the period from the frequency measurement and prints the calculated period. The program then sets the 5328AF/096/H42 into its PERIOD mode with 10 + resolution. A period measurement is made, read into the C register of the HP9825A and printed.
Model 5328A Theory of Operation SECTION IV THEORY 4-1. OF OPERATION INTRODUCTION 4-2. This section contains a description of the operating principles of the counter in reference to an overall block diagram in this section and to individual block and schematic diagrams in Section Vlll. 4-3. OVERALL DESCRIPTION 4-4. The 5328A is a 500 MHz universal frequency counter with the following capabilities.
Model 5328A Theory of Operation 4-9. INPUT AMPLIFIER AND TRIGGER — essentially conditions the input signal to a form that is compatible with the internal circuitry of the counter. As Figure 4-7 indicates, the output of the amplifier/trigger is a pulse train where each pulse corresponds to one cycle or event of the input signal. 4-10. TIME BASE OSCILLATOR — is that element of the counter from which the time, t, of equation (1) is derived.
Model 5328A Theory of Operation 4-18. Ratio 4-19. By replacing the time base with a second input of frequency, f 2; the same configuration as in Figure 4-2 can be used to measure the ratio f2/f. For higher resolution the signal at frequency f can be divided in decade steps in a manner identical to multiple period averaging. 4-20. Time Interval 4-21. Figure 4-3 shows the configuration for the measurement of time between two events or time interval.
Model 5328A Theory of Operation 4-24. Resolution 4-25. The resolution of the measurement is determined by the frequency of the counted clock (e.g., a 10 MHz clock provides 100 ns resolution). The elements within the time interval counter (input amplifier, main gate, DCA’s) must operate at speeds consistent with the clock frequency, otherwise the instrument’s resolution would be meaningless. The 5328A counts a 10 MHz clock. 4-26.
Model 5328A Theory of Operation Figure 4-5, Synchronizer Operation with Time Interval Averaging 4-33. There are occasional situations where time interval averaging cannot be performed on a periodic signal. This problem occurs when the input time interval repetition rate is synchronous with the internal clock. 4-34. SOURCES OF MEASUREMENT ERROR 4-35. The major sources of measurement error are the ±1 count ambiguity, the time base error and trigger error. These are discussed in the following paragraphs.
Model 5328A Theory of Operation 4-38. FREQUENCY MEASUREMENT ERROR. The error caused by the ambiguity is in absolute terms, ±1 of the accumulated count. For a frequency measurement the signal counted is the input signal of frequency, f in. Thus the relative error is given by: ±1 count error, relative frequency measurement error (2) 4-39. PERIOD MEASUREMENT ERROR. For period measurement, the signal counted is the internal time base clock of period t c.
Model 5328A Theory of Operation 4--47. For time interval measurements, trigger error is generally negligible when compared to the systematic error introduced by the uncertainty in the setting of trigger levels. For an uncertainty in trigger level of ±10 millivolt and a peak noise voltage of one millivolt, trigger error is a factor of five less than the error caused by trigger level uncertainty, regardless of signal slew rate.
Model 5328A Theory of Operation Figure 4-8.
Model 5328A Theory of Operation counting decades, output multiplexing logic, and synchronizers to generate precise timing signals for the main gate. The oscillator section contains the input/output logic to accept an external signal via the rear panel or an internal signal from the oven-regulated crystal oscillator. 4-54. The sample rate circuit controls the instrument display cycle.
Model 5328A Theory of Operation 4-64. Display Control 4-65. The display control section on Al Motherboard acts as an interface between the A16 Display board and the other circuits of the counter. 4-66. The outputs of the A16 Display Board FUNCTION and RESOLUTION switches go to the ROM (A1U37). The outputs of the ROM position the decimal point and annunciators in the display and provide control functions for other circuits of the counter.
Model 5328A Theory of Operation 4-77. All measurements performed by the 5328A result in pulses being counted in the DCA. Pulses are admitted to the DCA by way of the Main Gate FF on A4 which is either controlled by a Gate Out signal from the Time Base (A1U19) or held open by the HOPN signal from A1U25. 4-78. Data strobe signals, transfer pulses, reset pulses, and an output disabling signal are routed to the DCA via the 5328A State Control Circuitry.
Model 5328A Theory of Operation 4-87. +15V FAN POWER. The +15V supply is a simple linear regulator using transistor Q7 as the pass transistor. Transistor Q2 provides level shifting and current gain while U3 is used as comparator and gain block. The 5328A cooling fan motor receives power from A20. A20 is a sealed unit which produces an alternating current from +15 volts input. 4-88. The +3.
Model 5328A Theory of Operation 4-96. Time Base Multiplexer and Main Gate FF 4-97. Time Base Multiplexer U10 select either A, B, or OSC to send the Time Base Input (TBI) signal via pin 8 to the Time Base. This same signal is also sent to U1, the Main Gate FF, as a desynchronizing signal. ROM lines R(HTBA), R(HTBO), and R(HTBB) control the selection of the Time Base Input signal. The HDS signal to U10(3) or ROM line LTOT to U10(1) serve to enable or disable U10. 4-98.
Model 5328A Theory of Operation 4-107. REMOTE CONTROLLABLE (PROGRAMMABLE) INPUT BLOCK DIAGRAM DESCRIPTION 4-108. I n the local mode, the A19 Switch Control board generates TTL levels that control the A12 signal conditioning relays. These levels allow front panel control of A and B channel input signal conditioning. The A19 board accepts inverted A and B channel signals from the A12 board.
Model 5328A Theory of Operation 4-112. When the interface receives a data byte, for control of trigger levels, it goes into the DAC control mode. This is a result of the interface receiving a + or - on its input data lines. Once in the DAC control mode, the programming interface latches disregard the information at their input. Simultaneously, the information, on the input data lines (MDA-MDD) is accepted by the A11 DAC board. 4–113.
Model 5328A Theory of Operation 4-114. The A11 DAC board processes the four serial data bytes, and produces one parallel BCD output. The BCD output provides the information for generating a square wave train by using a series of rate multipliers. The square wave train has an average duty cycle proportional to the input code supplied to the rate multipliers. This square wave train switches on a precision current source that feeds a voltage averager to produce a dc output. 4-115.
Model 5328A Theory of Operation and the exclusive OR gate U2. Schmitt trigger U4 has approximately 15 mV peak-to-peak hysteresis at its input. Exclusive OR gate U2 is used to select the desired slope of the input waveform. When pin 7 of U2 is held to an ECL high level (SLOPE switch in + position), U2 acts as an inverter. When pin 7 goes low (SLOPE switch in the - position), U2 does not invert the signal passing through it. 4-126.
Model 5328A Theory of Operation 4-133. When the 5328A goes into remote, LEXT goes low. The low, on LEXT, causes the output of A1 Motherboard switch control circuit to go from -0.7 volts to +5 volts. This change, disables front panel switch control on the A16 and the A19 boards. When LEXT is low, U17(4) connected to tri-state buffers U2 pin 1 and U9 pines 1 and 15 is also low. This low, returns the outputs of tri-state buffers, U2 and U9, to their active state.
Model 5328A Theory of Operation Since the condition of the MA and MB lines remains the same, the Channel A DAC receives the clock pulses. On the negative transition of the clock pulse, the + or - is shifted into the A channel DAC shift registers A10U7 and U11. 4-145. Following the format, the next data byte on MDA-MDD will be a number. The MDAMDD lines supplied to U7 are also connected to the A11 DAC board shift registers.
Model 5328A Theory of Operation 4-155. Averager U4 converts the current pulses supplied via CR10 into a dc output voltage. The averager generates the output voltage proportional to the duty cycle of the input current pulses. 4-156. A8 Channel C Input 4-157, The A8 board contains circuitry to amplify and detect input signals up to 500 MHz, a divide-by-10 counting chain, a high-speed gate, and circuitry to drive the least-significantdigit in the display.
Model 5328A Theory of Operation talk or listen addresses on the data lines (DIO1—DIO8). Addresses are set into each device at the time of system configuration either by switches built into the device or by jumpers on a PC board. While the ATN line is low, all devices must listen to the data lines. When the ATN line is high, only devices that have been addressed will actively send or receive data. All others ignore the data lines. 4-166.
Model 5328A Theory of Operation 4-178. Overall Operation 4-179. The heart of the HP-IB Interface is a 256 state algorithmic state machine (ASM) controlled by a 256x16 ROM (U22) as shown in the block diagram. This state machine has two different format states determined by the format (F) bit from U22. One state (F=0) is an output mode state where the machine will proceed sequentially to the next state (address) after storing or outputting information.
Model 5328A Theory of Operation the use of the letter “N” in a decision diamond symbol. ) The preset (jump) is synchronous and only occurs when pin 9 of U14 and U23 is low and when there is a rising edge at pin 2 of U14 and U23. FF U31A synchronizes the reset of the State Counters to occur at the proper time. 4-190. ASM OSCILLATOR. As shown in the ASM Oscillator Timing Diagram, Figure 4-70, the ASM oscillator circuit provides three separate phases of clock outputs.
Model 5328A Theory of Operation operation of the state control circuit U4 on the motherboard. Diode CR3 ensures that LINH is low to inhibit the counter during the time that LRST is low. 4-197. STROBE ENABLE DECODER. Decoder U13 is a 4- to lo-line decoder used to strobe the various storage latches. Pins 1, 14, and 15 are used to select the device to be strobed and pin 2 is an enable which determines the width of the strobe pulse. The output of U25C disables U13 when the ASM is in the decision state mode.
Model 5328A Maintenance SECTION V MAINTENANCE 5-1. INTRODUCTION 5–2. This section gives maintenance and service information. Included is a table of assemblies, recommended test equipment, a performance test, (which may be used to verify proper counter operations) and adjustments. 5-3. ASSEMBLY DESIGNATIONS 5-4. Table 5-1 lists the designations, name, and Hewlett-Packard part number of assemblies used in this instrument. 5-5. TEST EQUIPMENT 5-6.
Model 5328A Maintenance Table 5-2. Recommended Test Equipment 5-9. PREVENTIVE MAINTENANCE 5-10. Preventive maintenance consists of periodic inspection, cleaning, performance checks, and oscillator calibration. Table 5-3 lists the recommended schedule of preventive maintenance routines. Table 5-3.
Model 5328A Maintenance 5-11. Inspection 5-12. The 5328A should be inspected for indications of mechanical and electrical defects. Electronic components that show signs of overheating, leakage, frayed insulation, and other signs of deterioration should be checked and a thorough investigation of the associated circuitry should be made to verify proper operation. Mechanical parts should be inspected for excessive wear, looseness, misalignment, corrosion, and other signs of deterioration. 5-13. Cleaning 5-14.
Model 5328A Maintenance Table 5-4. Performance Test 1. SENSITIVITY - Channel A Specification: 15 mV rms, 0-35 MHz (dc coupled) 20 Hz-35 MHz (ac coupled) 50 mV rms, 35 MHz-100 MHz Description: A signal generator with calibrated output is set to the specified 5328 signal sensitivity level and varied over the specified frequency range. The counter must display the correct frequency. a.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) b. 10 MHz to 100 MHz Setup: (1) DC coupled 10 MHz to 100 MHz . Set the 5328A to DC COUPLING. . Set the “8601A for an output level of 15 mV rms as measured on the 3436A RF voltmeter. Vary the 6601A’s frequency from 10 MHz to 35 MHz and verify that the counter displays correct frequency readings. Increase the 8601A output level to 50 mV rms and vary the frequency from 35 MHz to 100 MHz.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) a. 10 Hz to 10 MHz Setup: (1) DC coupled 10 Hz to 10 MHz l Set counter No. 1 (HP 5328A) to SEP, LEVEL B to PRESET, ATTEN X1 (B channel), DC coupling (B channel). l Set the 651B to 15 mV rms. Vary the 6516’s frequency from 10 Hz to 10 MHz and verify that the 5328A Channel B MARKER OUTPUT is the correct frequency as read by counter No. 2. Adjust the 5328A LEVEL B control as necessary to achieve a stable display.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) (1) DC coupled 10 MHz to 100 MHz . Set Counter No. 1 (HP 5328A] to DC coupling (B channel). l Set the 8601A for an output level of 15 mV rms as measured on the 3406A RF voltmeter. Vary the 8601A’s frequency from 10 MHz to 35 MHz and verify that the 5328A Channel B MARKER OUTPUT is the correct frequency as read by counter No. 2. Increase the 8601A output level to 50 mV rms and vary the frequency from 35 MHz to 100 MHz. Counter No.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) 4. PERIOD AND PERIOD AVERAGE Specification: PER A - counter will measure periods of signals to 10 MHz with resolutions from 10 ns to 0.1s in decade steps. PER AVG A - counter will measure periods of signals to 10 MHz with resolutions from 100 ns to 0.01 ps in decade steps. The number of periods over which the period average measurement is made can be selected by the FREQ RESOLUTION, N switch.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) Setup: Set the 5328A Function switch to RATlO B/A: Freq Resolution. N switch to 1 kHz, I@: Level A and B to PRESET; AC coupling on both channels; X10 ATTEN on both channels; COM A. Verify that the counter displays 1.000. Mark results on performance test record. Set the 5328A Function switch to RATlO C/A; SEP. Disconnect the channel B input and reconnect it to channel C. Verify that the counter displays 1.000. 6.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) l Set the 651B to 1.0 MHz and 500 mV rms. . Set the 5328A Function switch to T.I. A-B; Freq Resolution, N switch to 1 MHz, 1; Level A and B to PRESET; AC coupling on both channels, X1 ATTEN on both channels, COM A. l Set the Channel A SLOPE to (+) and the Channel B SLOPE to (–). Verify that the counter displays 0.5 µs ±0.25 µs. Mark results on performance test record. l Set 5328A Function switch to T.I.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) 8.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) . Set the pulse generator for the following output: a. (-) SLOPE TEST Execute the following from the 9825A keyboard: wrt 701, “PF8G1S13A57+000*B57+000*R” Counter should display 20 µS ±10 µs. Mark results on performance test record. b. (+) SLOPE TEST . Press RESET button on HP 5328A. Set Channels A and B slope switches to (-). . Execute the following from the 9825A keyboard.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) l Counter should display 20 µS ±10 µs. Mark results on performance test record. c. AC/DC TEST l Press RESET button on 5328A and set both channels A and B to AC coupling. l Execute the following from the 9825A keyboard: wrt 701, “PF8G1S13A37+000*B37+000*R” l Counter should display 0. µS and the GATE light should be off. Both A and B channel trigger lights should be lighted (but NOT blinking). Mark results on performance test record, d.
Model 5328A Maintenance Tab/e 5-4. Performance Test (Continued) f. ATTEN X1, X10, X100 TEST Setup: . Set the 651B to 1 kHz at an output level of 25 mV rms. (1) ATTEN X1 TEST . Execute the following from the 9825A keyboard: wrt 701, “PF4G5S13A379+000*B37+000*R” . Observe that both channel A and B trigger lights are blinking. (2) ATTEN X10 TEST . Execute the following from the 9825A keyboard: wrt 701, “PF4G5S13A3+000*B3+000*R” . Observe that both channel A and B trigger lights are off.
Model 5328A Maintenance Table 5-4. Performance Test (Continued) 9.
Model 5328A Maintenance Table 5-4. Performance Test [Continued) . Set channels A and B of the 5328A to DC coupling, COM A, X1 ATTEN, and FREQ A. . Set the 6516 Test Oscillator for an output of 100 Hz at 6 volts peak-to-peak. Center the signal on the oscilloscope B channel display.
Model 5328A Maintenance Table 5-4. Performance Test (Continued] Connect the 5328A A MARKER output to the A channel of the oscilloscope. Adjust the position of the A MARKER as described above and verify that it intersects the 100 Hz sinewave at +2 volts. Execute the following from the 9825A keyboard: wrt 701, “PF4G6S13A379-200*B37-200*R“ Adjust the display of the A channel marker output such that the top of the waveform just barely intersects both positive and negative slopes of the 100 Hz waveform.
Model 5328A Maintenance PERFORMANCE CHECK TEST CARD 5328A Date TEST RESULTS DESCRIPTION PASS FAIL a. Sensitivity, Channel A 1 (1) 10 Hz-10 MHz, dc (2) 20 Hz-10 MHz, ac b. Sensitivity, Channel A (1) 10 MHz-100 MHz, dc (2) 10 MHz-100 MHz, ac 2 a. Sensitivity, Channel A (1) 10 Hz-10 MHz, dc (2) 20 Hz-10 MHz, ac b. Sensitivity, Channel B (1) 10 MHz-100 MHz, dc (2) 10 MHz-100 MHz, ac 3 Sensitivity, Channel C . . . . . . . . . . 30 MHz-500 MHz 4 period and period Average 1.
Model 5328A Maintenance PERFORMANCE CHECK TEST CARD Date 5328A DESCRIPTION TEST RESULTS PASS 5 FAIL RATIO B/A 1.000 display RATlO C/A 1.000 display 6 TIME INTERVAL AND TIME INTERVAL AVERAGE TI A-B -0.5 µsec display TI AVG A-B, (+) to (-), 500.XXXX nsec display TI AVG A-B, (-) to (+), 500.XXXX nsec display 7 GATE/MARKER OUT AND SAMPLE RATE 8 REMOTE PROGRAMMING a. (-) SLOPE TEST b. (+) SLOPE TEST c. AC/DC TEST d. SEP/COM A TEST e. INVERT TEST f.
Model 5328A Maintenance 5-22. ADJUSTMENTS 5-23. Adjustment procedures are provided for the oscillator and for the time interval unit (sensitivity). The adjustments should not be done unless: a. A trouble has been repaired which would affect these values. b. The instrument does not meet all specifications while performing the check in Table 5-4 (Performance Test), or during periodic calibration. 5-24. OSCILLATOR ADJUSTMENT. Periodically, the oscillator should be checked against a house standard.
Model 5328A Maintenance c. Set 5328A rear panel control as follows: ARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OFF d. Connect HP 608E Signal Generator (or equivalent) to INPUT A. Set signal generator to 35 MHz at 50 mV rms (140 mV p-p). e. Slowly decrease the signal generators output level to 15 mV rms (42 mV p-p), while adjusting variable resistor R26, to obtain a stable correct display, on the counter. f.
Model 5328A Maintenance It is very important that the DAC adjustments be performed after the A and B channels sensitivity adjustment. In this adjustment, follow the procedure outlined on page 12 of the Option 041 Manual but adjust for optimum sensitivity by continuing to decrease the signal generator level below 25 mV rms and adjusting the A12R26, R28 for stable counter displays. a. Set up the equipment as in Figure 5-2.
Model 5328A Maintenance Figure 5-2.
Model 5328A Maintenance Figure 5-3.
Model 5328A Maintenance 5-26. Adjustment of A3 Oscillator Support 1. Connect 5328A, HP 8640, and HP 180 as shown in Figure 5-4. Figure 5-4. Hookup For A3 Oscillator Support Adjustment 2. Place A3 on an extender board, 3. Apply a 1 MHz signal at a level greater than 1V rms to the 5328A rear-panel EXT OSC IN. 4. With scope probe, monitor A3U2 (6) non-component side of A3 circuit board. 5. Adjust A3C15 and A3C12 to minimize side-jitter in trace, as shown in Figure 5--5. 6.
Model 5328A Maintenance Figure 5-5.
Model 5328A Maintenance 5-33. IC Troubleshooting 5-34. To troubleshoot the IC’s on the A1 Motherboard, proceed as follows: a. Set the FUNCTION switch to CHECK. b. Set the FREQ RESOLUTION, N switch to 1 MHz, 1. c. Remove top cover and remove A4 Function Selector Assembly. d. Apply power and check for the logic states as shown in Table 5-5, using an HP Model 10528A Logic Clip or a Model 10525T Logic Probe. A dark pattern indicates a logic high. 5-35. Function Signals 5-36.
Model 5328A Maintenance Table 5-5 IC Troubleshooting, A1 Motherboard 5-27
Model 5328A Maintenance Table 5-5.
Model 5328A Maintenance Table 5-5.
Model 5328A Maintenance Table 5-5. lC Troubleshooting, A1 Motherboard (Continued) Table 5-6. 5328A Functional Signals 5-37. HP-IB VERIFICATION USING THE HP9825A 5-38. The following program checks the 5328AF/096/H42 for proper operation on the HP-IB. The program is designed to operate with the 5328AF/096/H42 connected to a HP9825A Desktop Computer as a controller.
Model 5328A Maintenance 5-39. To perform the verification, connect the 5328AF/096/H42 as shown in Figure 5-6, and set the rear panel address switches to decimal equivalent one. Figure 5-6. System Configuration 5-40.
Model 5328A Maintenance Figure 5-7.
Model 5328A Maintenance Table 5-7.
Model 5328A Maintenance Table 5-7.
Model 5328A Maintenance Table 5-7.
Model 5328A Maintenance Table 5-8A. Program Description Check Point Test 1 2 3 REMOTE CHECK RESOLUTION 4 5 6 7 8 9 10 11 12 FREQ A RATlO B/A PERIOD A PER. AVE. A T.I. A-B T.I. AVG. A-B FREQ C RATIO C/A SAMPLE RATE SINGLE/ MULTIPLE MEASMNT Observe on 5328A Front panel (RMT) annunciator should be on. Counter should read 10.000 MHz. The 9825A should print and counter display the 10 MHz check signal with resolutions from 0.1 Hz to 1.0 MHz. Counter display should read 0.0000 KHz.
Model 5328A Maintenance Table 5-8B. Program Description Check Point Step 13 1 Test Counter Display Readout ATTENUATOR 2 14 3 SEPARATE/ COMMON NORMAL/ INVERTED 4 15 5 COUPLING 6 16 7 SLOPE/ TRIGGER LEVEL 8 9 10 11 12 Channel + SLOPE Channel - SLOPE Channel + SLOPE Channel - SLOPE B B A A Set the function generator to an output of 1 kHz, 100 mV p-p sinewave centered at @vdc as seen on the oscilloscope. Connect the function generator’s output to Channel A of the counter.
Model 5328A Maintenance Table 5-8C. HP-IR Bus Commands Check Point 17 Test LOCAL LOCKOUT (LLO) DEVICE CLEAR (DCL) SELECTED DEVICE CLEAR (SDC) GROUP EXECUTE TRIGGER (GET) SERIAL POLL (SPE/SPD) GO TO LOCAL (GTL) When the 9825A CONTINUE key is pressed, verify that counter (RMT) annunciator is on. When the 9825A CONTINUE key is again pressed, verify Local Lockout by pressing front panel RESET button and ensuring counter doesn’t go into Local operation. (RMT annunciator Off).
Model 5328A Maintenance Table 5-9.
Model 5328A Maintenance Table 5-9. 5328A A15 Qualifiers and Signal Mnemonics (Continued) OUTPUTS Signal LLIS HLIS LTLK HTLK LSP HSP LMA HMA LS HS HLTCH LRMT HRMT LD HD LMB HMB LMS HMS LDAV HDAV LRFD HRFD LDAC HDAC LLO HLLO LEOM HIC HDSA LRPR HRPR LDDIS HDDIS LINH LRST HRST LSRQ HSRQ ASP LDAO HDAO ADIG ALF AØ ACR AE ADP A3 A6 A9 A+ AAOVF 5-40 Source Description Unlisten Listen Untalk Talk Serial Poll Disable Serial Poll Enable Enable Function Code Latch Input Module Select Code.
Model 5328A Maintenance 5-43. TROUBLESHOOTING INPUT CHANNELS 5-44. The main function of the input channels is to perform input signal conditioning via either local or remote control, Therefore, effective problem diagnosis is divided into two sections, local and remote. It is most efficient to assure proper local operation before remote section troubleshooting is performed. Use of the Performance Test (Table 5-4) will aid in determining which troubleshooting section to use. 5-45.
Model 5328A Maintenance 5-51. Programming Logic Troubleshooting includes Tables 5-12 and 5-13. Table 5-12 Program Interface Operation shows the necessary levels that the A10 must generate in any function. Input and Output codes for ROM (A10U7) are contained in Table 5-13. DAC Troubleshooting includes a checkout procedure that does not require a programming 5-52. source. Table 5–14 DAC Logic Levels gives the required logic output levels for proper operation.
Model 5328A Maintenance Table 5-12. Program Interface Operation Table 5-13.
Model 5328A Maintenance Table 5–14. A11 DAC Logic Levels Table 5-15. A 11 DAC Signals Table 5-16.
Model 5328A Maintenance 5-54. REMOVAL AND REPLACEMENT INSTRUCTIONS 5-55. Removal and replacement instructions are provided for the instrument cover, the time interval module (assemblies A10 and A19) and A16 Display Assembly. 5-56. Instrument Cover Removal 5-57. To remove top or bottom cover, remove the screw at the rear edge that secures cover to instrument. Slide cover toward rear of instrument and lift off. To replace cover, reverse procedure.
Model 5328A Maintenance d. Remove the two machine screws that secure the top of the display front panel to the top of the cast front-panel frame. e. Turn the 5328A on its side and remove the two machine screws that secure the bottom of the display front panel to the bottom of the cast front-panel frame. f. Slightly loosen all remaining machine screws along the top of the cast front-panel frame. This releases the compressive force on the module front panel. g.
5-47 Figure 5-10.
5-49 Figure 5-10.
Figure 5-10.
5-52 Figure 5-11.
Figure 5-11.
5-54 Figure 5-12.
Model 5328A Replaceable Parts SECTION VI REPLACEABLE PARTS 6-1. INTRODUCTION 6-2. This section contains information for ordering replacement parts. Table 6-7 lists parts in alphanumerical order of their reference designators and indicates the description and HP PART Number of each part, together with any applicable notes. The table includes the following information. a. Description of part (see abbreviations below). b.
Model 5328A Replaceable Parts 6-2
Model 5328A Replaceable Parts 6-5. HP PART NUMBER ORGANIZATION 6-6. Following is a general description of the HP part number system. 6-7. Component Parts and Materials 6-8. Generally, the prefix of HP part numbers identifies the type of device. Eight digit part numbers are used, where the four-digit prefix identifies the type of component, part, or material and the four-digit suffix indicates the specific type. Following is a list of some of the more commonly used prefixes for component parts.
Model 5328A Replaceable Parts 6-10. General Usage Parts 6-11. The following list gives the prefixes for HP manufactured parts used in several instruments, e.g., side frames, feet, top and bottom covers, etc. These are eight-digit part numbers with the four-digit prefix identifying the type of parts as shown below: Type of Part Sheet Metal Machined Molded Assemblies Components Prefix 5000- to 50195020- to 50395040- to 50595060- to 50795080- to 5099- 6-12. Specific Instrument Parts 6-13.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION MFR CODE MFR PART NUMBER A1R15 A1R16 A1R17 A1R19 A1R23 1810-0041 0683-1025 0683-1035 1810-0055 0683-2015 9 9 1 5 9 2 NETWORK-RES 9-PIN-SIP .15-PIN-SPCG RESISTOR 1K 5% .25W FC TC=-400/+600 RESISTOR 10K 5% .25W FC TC=-400/+700 NETWORK-RES 9-PIN-SIP .15-PIN-SPCG RESISTOR 200 5% .
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION MFR CODE MFR PART NUMBER A2F1 A2F2 2110-0002 2110-0002 9 9 2 FUSE 2A 250V FAST-BLO 1.25X.25 UL IEC FUSE 2A 250V FAST-BLO 1.25X.25 UL IEC 75915 75915 312002 312002 A2L1 A2L2 A2L3 9100-3017 9100-3017 9100-3139 8 8 5 2 1 INDUCTOR:FXD: 300UH AT 5A DC INDUCTOR:FXD: 300UH AT 5A DC COIL 75UH 15% .5DX.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS REFERENCE DESIGNATION HP PART NUMBER QTY DESCRIPTION MFR CODE MFR PART NUMBER A8 A8C1 A8C2 A8C3 A8C4 A8C5 05328-60032 5 0160-4084 8 0180-0428 8 0180-0428 8 0180-0155 8 0160-4084 8 1 6 16 "C" CHANNEL INPUT (SERIES 1736) CAPACITOR-FXD .1UF +-20% 50VDC CER CAPACITOR-FXD 68UF+-20% 6VDC TA CAPACITOR-FXD 68UF+-20% 6VDC TA CAPACITOR-FXD 2.2UF+-20% 20VDC TA CAPACITOR-FXD .
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION MFR CODE MFR PART NUMBER A8R75 A8R76 A8R77 A8R78 A8R79 0683-1525 0683-5125 0683-5615 0683-2025 0683-2715 4 8 1 1 6 RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR 1.5K 5% .25W FC TC=-400/+700 5.1K 5% .25W FC TC=-400/+700 560 5% .25W FC TC=-400/+600 2K 5% .25W FC TC=-400/+700 270 5% .
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION MFR CODE MFR PART NUMBER A10R6 A10R7 A10R8 A10R9 A10R10 0683-2025 0683-2225 0683-4725 0683-5115 0683-3025 1 3 2 6 3 RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR 01121 01121 01121 01121 01121 CB2025 CB2225 CB4725 CB5115 CB3025 A10R11 A10R12 A10R13 A10R14 A10R15 0683-1815 0683-5115 0683-9115 1810-0080 0683-9115 5 6 4 6 4 RESISTOR 180 5% .25W FC TC=-400/+600 RESISTOR 510 5% .
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION A11R34 A11R35 A11R36 A11R37 A11R38 0683-2015 0698-3153 0683-6215 0683-4315 0683-2015 9 9 9 6 9 RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR 200 5% .25W FC 3.83K 1% .125W 620 5% .25W FC 430 5% .25W FC 200 5% .
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION MFR CODE MFR PART NUMBER A12R6 A12R7 A12R8 A12R9 A12R10 0683-3925 0683-4725 0698-5999 0683-8215 0683-8215 2 2 5 3 3 RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR 01121 01121 01121 01121 01121 CB3925 CB4725 BB4725 CB8215 CB8215 A12R11 A12R12 A12R13 A12R16 A12R17 0675-1021 0683-1025 0675-1021 0683-5115 0683-5115 8 9 8 6 6 RESISTOR 1K 10% .125W CC TC=-330/+800 RESISTOR 1K 5% .
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1.
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION MFR CODE MFR PART NUMBER A16R6 A16R7 A16R8 A16R9 A16R10 2100-3455 0683-2005 0683-3325 0683-1025 0683-1025 1 7 6 9 9 1 RESISTOR-VAR CONTROL CCP 2.5M 20% 10CW RESISTOR 20 5% .25W FC TC=-400/+500 RESISTOR 3.3K 5% .25W FC TC=-400/+700 RESISTOR 1K 5% .25W FC TC=-400/+600 RESISTOR 1K 5% .
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION MFR CODE MFR PART NUMBER A19R21 A19R22 A19R23 A19R24 A19R25 0683-6815 0683-1525 0683-3315 0683-3315 0683-1525 5 4 4 4 4 RESISTOR RESISTOR RESISTOR RESISTOR RESISTOR 680 5% FC TC=-400/+600 1.5K 5% .25W FC TC=-400/+700 330 5% .25W FC TC=-400/+600 330 5% .25W FC TC=-400/+600 1.5K .
MODEL 5328A REPLACEABLE PARTS TABLE 6-1. REPLACEABLE PARTS (CONTINUED) REFERENCE HP PART QTY DESIGNATION NUMBER DESCRIPTION MFR CODE MFR PART NUMBER CHASSIS PARTS B1 0950-1589 7 1 FAN AND CONTROL MODULE ASSEMBLY 28480 0950-1589 C1A C1B 0160-0676 0160-0676 6 6 2 CAPACITOR-FXD 1800PF +-10% CAPACITOR-FXD 1800PF/1800PF +-10% 28480 28480 0160-0676 0160-0676 F1 F1 2110-0001 2110-0002 2110-0464 2110-0465 2110-0467 8 9 7 8 0 1 1 1 1 1 FUSE 1A 250V FAST-BLO 1.25X.
Model 5328A Replaceable Parts Table 6-2.
TABLE 6-3 PART NUMBER - NATIONAL STOCK NUMBER CROSS REFERENCE INDEX PART NUMBER FSCM NATIONAL STOCK NUMBER DV11PS18A 0121-0059 0121-0061 0121-0180 0140-0177 0140-0202 0140-0209 0140-0214 0140-0215 0140-0221 0140-0225 0150-0096 0160-0127 0160-0128 0160-0154 0160-0161 0160-0174 0160-0314 0160-0342 0160-2055 0160-2242 0160-2244 0160-2246 0160-3043 0160-3879 0170-0024 0170-0040 0170-0055 0180-0106 0180-0119 0180-0124 0180-0229 0180-0374 0180-1701 0180-1735 0180-1746 0360-0124 0675-1021 0683-1005 0683-1015 0
TABLE 6-3 PART NUMBER - NATIONAL STOCK NUMBER CROSS REFERENCE INDEX PART NUMBER FSCM NATIONAL STOCK NUMBER 0757-0280 0757-0283 0757-0421 0757-0427 0757-0428 0757-0438 0757-0439 0757-0442 0757-0447 0757-0454 0757-0900 0757-0924 0757-0931 0757-0938 0757-0950 09-52-3030 1200-0063 1205-0011 1250-0083 1250-0835 1250-0870 1251-2026 1251-2034 1251-2357 1251-3246 1810-0020 1810-0041 1810-0055 1820-0054 1820-0055 1820-0068 1820-0074 1820-0077 1820-0099 1820-0174 1820-0175 1820-0196 1820-0223 1820-0301 1820-0328
TABLE 6-3 PART NUMBER - NATIONAL STOCK NUMBER CROSS REFERENCE INDEX PART NUMBER FSCM NATIONAL STOCK NUMBER 2100-1738 2100-2522 2100-2632 2100-2633 2110-0269 2950-0001 2950-0035 3101-1234 4040-0747 4040-0748 4040-0752 8120-1378 8159-0005 9100-2288 9140-0096 9140-0131 9140-0137 9140-0178 28480 28480 28480 28480 28480 28480 28480 28480 28480 2848C 28480 28480 28480 28480 28480 28480 28480 28480 5905-00-256-8993 5905-00-476-5797 5905-00-476-5718 5905-00-476-5796 5999-00-333-9620 5310-00-450-3324 5310-00-4
Model 5328A Manual Changes SECTION MANUAL 7-1. VII CHANGES INTRODUCTION 7-2. This section contains information for adapting this manual to instruments for which the content does not apply directly. This manual applies directly to instruments having serial prefix 1808A. Refer to Section I for additional important information about serial number coverage. 7-3. MANUAL CHANGES SHEET 7-4. Instruments having serial prefixes higher than 1808A are covered with a “Manual Changes" sheet, following.
HEWLETT M A N U A L PACKARD D E S C R I P T I O N INSTRUMENT: 5328A/H42 Frequency Counter Operating and Service Manual 1808A SERIAL PREFIX: DATE PRINTED: HP PART NO: MICROFICHE NO: IF YOUR INSTRUMENT HAS SERIAL PREFIX OR SERIAL NUMBER ➤ 1828A JUNE 1978 05328-90055 05328-90056 MAKE THE FOLLOWING CHANGES TO YOUR MANUAL MANUAL CHANGE DATE CHANGES July 7, 1978 (This change supersedes all earlier dated changes) . Make all changes listed as ERRATA. .
MANUAL CHANGES MODEL 5328A/H42 Page 2 l CHANGE 1 (1828A) E Pages 6-7 and 6-8, Table 6-1, A2 (05328-60035) Replaceable Parts: Change A2 series number from 1808 to 1828. Change A2R34 and R35 from 0811-1340 (lfZ) to 0812-0021; RESISTOR 0.470 5% 3W WW TC=0 * 90; 91637; CW2B1-3-T2-47/100-J. E Page 8-19, Figure 8-9, A2 (05328-60035) schematic Diagram: Change “SERIES 1808” at top of diagram to SERIES 1828. Change A2R34 and R35 from 1.0 to 0.47 ohms.
Model 5328A Schematic Diagrams SECTION SCHEMATIC Vlll DIAGRAMS 8-1. INTRODUCTION 8-2. This section contains schematic diagrams and part locators. The part locators shown the location by reference designator. 8-3. SCHEMATIC DIAGRAM SYMBOLS AND REFERENCE DESIGNATORS 8-4. Figure 8-1 shows the symbols used on the schematic diagrams. At the bottom of Figure 8-1, the system for reference designators, assemblies, and subassemblies are shown. 8-5. Reference Designations 8-6.
Model 5328A Schematic Diagrams 8-13. Symbols are used on PC boards to aid in identifying pin numbers, diode elements, etc., as follows: AORO IDENTIFIES: Pin 1 of dip and flat-pack IC’s. Tab of TO CASES. + side of electrolytic capacitors. Pin 1 of resistor packs. Cathode of diodes. Section I of dip switches. 8-14. ASSEMBLY LOCATIONS AND COMPONENT LOCATORS 6-15. Figures in this section show the front, rear, and top views of the 5328A.
Model 5328A Schematic Diagrams Figure 8-1.
Model 5328A Schematic Diagrams Table 8-1. Signal Mnemonics DESCRIPTION MNEMONIC Output of Time Interval Unit, A channel. ECL levels. A x R (AO) R (A1) B B Output of Time Interval Unit, B channel. ECL levels. C C Output of C module, the carry input for the FS decade. ECL levels. C ARM CLK Active high TTL line used for module C arming measurement. Clock. Digit address clock to display. TTL levels. Data A Data B Data C Data D TTL 4-bit BCD code. Data going to display and HP-IB.
Model 5328A Schematic Diagrams Table 8-1. Signal Mnemonics (Continued) MNEMONIC DESCRIPTION RL (HTBB) Latched ROM bit which enables the TTL level Channel B signal from the Function Selector to be counted by the Time Base. R (HTBO) Non-latched ROM bit which enables the time base to count the oscillator output. RL (IA) RL (IB) RL (IC) TTL level latched ROM bits that drive High Speed Multiplexer select lines on Function Selector. L ANN Low annunciators. TTL active low turns RHS annunciators on.
Model 5328A Schematic Diagrams Table 8-1. Signal Mnemonics (Continued) MNEMONIC OSC OSC 100 MHz oscillator. ECL levels. OVFL Overflow. TTL active low indicates display overflow. RG ROM bit. Used to recognize period and institute hysteresis compensation. TTL level. RL1 (HEC) Latched ROM bit. TTL level enables channel C to strobe its digit onto the bus. RL2 (BIL) Latched ROM bit. High for time interval average. TTL level. RL3 (HDVM) Latched ROM bit.
Model 5328A Schematic Diagrams Figure 8-2.
Model 5328A Schematic Diagrams Figure 8-4.
Model 5328A Schematic Diagrams Figure 8-5.
Figure 8-6.
8-12 P/O Figure 8-7.
Model 5328A Schematic Diagrams P/O Figure 8-7.
Model 5328A Schematic Diagrams P/O Figure 8-7.
8-15 Figure 8-7.
8-17 Figure 8-7.
8-18 Figure 8-8.
8-19 Figure 8-9.
8-19 P/O Figure 8-10.
8-21 Figure 8-10.
8-23 Figure 8-11.
8-24 P/O Figure 8-12.
8-25 Figure 8-12.
8-26 Figure 8-13.
Figure 8-14.
8-28 Figure 8-15.
Figure 8-16.
8-30 Figure 8-17.
8-31 Figure 8-18.
8-32 Figure 8-19.
8-33 Figure 8-20.
Figure 8-21.
8-36 P/O Figure 8-22.
8-37 Figure 8-22.
Model 5328A Schematic Diagrams Figure 8-23.
Model 5328A Schematic Diagrams P/O Figure 8-24.
Figure 8-24.
8-43 Figure 8-25.
TM 11-6625-2941-14&P APPENDIX A REFERENCES DA Pam 310-4 Index of Technical Manuals, Technical Bulletins, Supply Manuals (Types 7, 8, and 9), Supply Bulletins, and Lubrication Orders. DA Pam 310-7 US Army Equipment Index of Modification Work Orders. TB 43-0118 Field Instructions for Painting and Preserving Electronics Command Equipment Including Camoflauge Pattern Painting of Electrical. Equipment Shelters. TM 38-750 The Army Maintenance Management System (TAMMS).
APPENDIX B COMPONENTS OF END ITEM LIST Section I. INTRODUCTION of the illustration on which the item is shown. (2) Item number. The number used to identify This appendix lists integral components of and basic item called out in the illustration. issue items for the AN/USM-459 to help you inb. National Stock Number. Indicates the National ventory items required for safe and efficient stock number assigned to the item and which will be operation. used for requisitioning. B-2. General c. Description.
SECTION II INTEGRAL COMPONENTS OF END ITEM (1) (2) (3) ILLUSTRATION NATIONAL DESCRIPTION (A) (B) STOCK FIG ITEM NUMBER NO. NO.
SECTION III BASIC ISSUE ITEMS (1) (2) ILLUSTRATION NATIONAL (A) (B) STOCK FIG ITEM NUMBER NO. NO. (3) DESCRIPTION PART NUMBER (4) LOCATION (5) USABLE ON CODE (6) QTY REQD RCVD (FSCM) 1 5920-00-280-8342 FUSE, 1 AMP F. BLO 2110-0001 (28480) 1 2 5920-00-793-4592 FUSE, 2 AMP F.
APPENDIX MAINTENANCE D ALLOCATION Section l. INTRODUCTION fault, malfunction, or failure in a part, subassembly, D-1. General module (component or assembly), end item, or This appendix provides a summary of the mainsystem. tenance operations for AN/USM-459. It authorizes j . O v e r h a u l .
time required to perform the specific tasks identified for the maintenance functions authorized in the maintenance allocation chart. Subcolumns of column 4 are as follows: C – Operator/Crew O – Organizational F – Direct Support H – General Support D – Depot e. Column 5, Tools and Equipment. Column 5 specifies by code, those common tool sets (not individual tools) and special tools, test and support equipment required to perform the designated function. f. Column 6, Remarks.
SECTION II MAINTENANCE ALLOCATlON CHART FOR ELECTRONIC COUNTER AN/USM-459 D-3
SECTION III FOR TOOL AND TEST EQUIPMENT REQUIREMENTS ELECTRONIC COUNTER UN/USM-459 TOOL OR TEST EQUIPMENT REF CODE MAINTENANCE CATEGORY NOMENCLATURE NATIONAL/NATO STOCK NUMBER 1 0 TOOL KIT, ELECTRONIC COUNTER TK-101/G 5180-00-064-5178 2 H,D TOOL KIT, ELECTRONIC COUNTER TK-100/G 5180-00-605-0079 3 H,D OSCILLATOR, H.P.
SECTION IV.
By Order of the Secretary of the Army: BERNARD W. ROGERS General, United States Army Chief of Staff Official: J.C.
PIN : 038245-000
