Page 1 Keysight 53150A/151A/152A Microwave Frequency Counter This guide describes how to use the Keysight 53150A, 53151A, and 53152A Microwave Frequency Counters. The information in this guide applies to instruments having the number prefix listed below, unless accompanied by a “Manual Updating Changes” package indicating otherwise.
Page 2 FAR 27.401 or DFAR could result in personal injury or death. 227.7103-5 (c), as applicable in any Do not proceed beyond a WARNING technical data. notice until the indicated conditions are fully understood and met. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 3: Safety Symbols
Caution, risk of danger (refer to this manual for specific Warning or Caution Caution, risk of electric shock information) Earth (ground) terminal Frame or chassis (ground) terminal Alternating current (AC) Direct current (DC) Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 4: Detailed Warranty Information
Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 5: Safety Considerations
For continued protection against fire, replace the line fuse(s) with fuses of the same current rating and type (for example, normal blow, time delay). Do not use repaired fuses or short-circuited fuseholders. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 6: Safety Earth Ground
When the product is tested with 8kV AD, 4kV CD and 4kV ID according to IEC801-2, a system error may occur that may affect measurement data made during these disturbances. After these occurrences, the system self-recovers without user intervention. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 7: Waste Electrical And Electronic Equipment (Weee) Directive
With reference to the equipment types in the WEEE directive Annex 1, this instrument is classified as a “Monitoring and Control Instrument” product. The affixed product label is as shown below. Do not dispose in domestic household waste. Keysight 53150A/151A/152A Assembly Level Service Guide...
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Page 9: Table Of Contents
........23 Performance Tests - Verifying Specifications Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 10 ..........52 Test 4e: Channel 2 22 GHz to 26.5 GHz Power Measurement Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 11 ..........60 Returning the Counter to Keysight Technologies for Service .
Page 12 ........... 111 Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 13: List Of Figures
....102 Figure 4-3 Keysight 53150A/151A/152A Top View ..103 Keysight 53150A/151A/152A Assembly Level Service Guide...
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Page 15: List Of Tables
. . .104 Table 4-3 Keysight 53150A/151A/152A Accessories and Miscellaneous Items ..... . .106 Keysight 53150A/151A/152A Assembly Level Service Guide...
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Page 17: In This Guide
Keysight 53150A/151A/152A Microwave Frequency Counter Assembly Level Service Guide In This Guide How to Use This Guide Description of the Microwave Frequency Counter Options Accessories Supplied and Available This guide provides assembly-level service information for the Keysight 53150A, 53151A, and 53152A Counters.
Page 18: How To Use This Guide
Repair Strategy This service guide is designed to isolate failures to the assembly level only. The Keysight 53150A/151A/152A Counter can be returned to Keysight for all service work, including troubleshooting, and verifying specifications. Contact your nearest Keysight Sales and Service Office for more details.
Page 19: Instrument Identification
Instruments Covered by this Guide This guide applies directly to Keysight 53150A, 53151A, and 53152A Counters that have the same serial number prefix(es) shown on the title page. If the serial number prefix of your Counter differs from that listed on the title page of this guide, there may be differences between this guide and your instrument.
Page 20: How To Order Guides
(to be provided when required). Chapter 6, “Specifications” lists all the specifications and operating characteristics for the Keysight 53150A/151A/152A Counter. How to Order Guides The part number for this guide is listed on the Certification and Warranty page (page 4) and on the back cover of this guide.
Page 21: Description Of The Microwave Frequency Counter
10 Hz to 125 MHz on Channel 1 and from 50 MHz to 20 GHz (53150A), 26.5 GHz (53151A), and 46 GHz (53152A) on Channel 2. These frequency counters are also capable of measuring power on Channel 2 (in the same frequency ranges).
Page 22: Options
In This Guide Options The options available for the Keysight 53150A/151A/152A are listed following this paragraph. Specifications for the options are listed in Chapter 6, “Specifications”. Options ordered with the Counter are installed at the factory and are ready for operation on delivery.
Page 23: Accessories Supplied And Available
– Rack Mount Kit (Keysight P/N 53150-67001) — same as Option 1CM Manuals Supplied Keysight 53150A/151A/152A Operating Guide (Keysight P/N 53150-90013) Keysight 53150A/151A/152A Programming Guide (Keysight P/N 53150-90014) Keysight 53150A/151A/152A Assembly-Level Service Guide (Keysight P/N 53150-90015) Keysight 53150A/151A/152A Assembly Level Service Guide...
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Page 25: Performance Tests - Verifying Specifications
Keysight 53150A/151A/152A Microwave Frequency Counter Assembly Level Service Guide Performance Tests - Verifying Specifications Introduction Equipment Required Operational Verification Complete Performance Tests Test 1: External Timebase Input Test Test 2: Channel 1 Frequency Sensitivity Test 3: Channel 2 Frequency Sensitivity...
Page 26: Introduction
Performance Tests - Verifying Specifications Introduction This chapter provides procedures to test the electrical performance of the Keysight 53150A/151A/152A. These procedures are based on the Counter specifications in Chapter 6, “Specifications”. Two types of testing are provided: – Operational Verification –...
Page 27: Complete Performance Tests
The results of the Operational Verification and the Complete Performance Tests should be recorded on a copy of the Performance Test Record, located at the end of the Complete Performance Test section in this chapter. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 28: Equipment Required
2.4 mm (f) to 2.4 mm (f) Keysight 11900B [a] Equivalent equipment can be substituted for all instruments and accessories. [b] OV = Operational Verification P = Performance Tests C = Calibration T = Troubleshooting Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 29: Operational Verification
These procedures should be followed in the order in which they appear. Power-On Self Tests This test is appropriate for the Keysight 53150A, 53151A, and 53152A Counters. NOTE 1 Inspect the Counter for damage.
Page 30: 10 Mhz Test
2 Press and release the Chan Select key (CH1 is displayed). 3 Verify that the display reads 10,000,000 Hz. 4 Mark Pass or Fail in the Performance Test Record on page 54, Test 2. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 31: Run Self Test
Performance Tests - Verifying Specifications Run Self Test This test is appropriate for the Keysight 53150A, 53151A, and 53152A Counters. NOTE 1 Disconnect all signal cables from the input and Reference 10MHz connectors. 2 Press and release the Shift key, and then press and release the Menu (Reset/ Local) key.
Page 32: External Timebase Test
30 minutes prior to beginning the tests. This allows the internal temperatures of the equipment to stabilize. – These tests are appropriate for the Keysight 53150A, 53151A, and 53152A Counters. 10 MHz External Timebase Input Test...
Page 33: Figure 1-1 External Timebase Test Setup
8 Press the right-arrow key once. INT begins to flash off and on. 9 Press the up- or down-arrow key once. INT changes to EXT. 10 Press the Enter key. 11 Press the Chan Select key once to select the CHANNEL 1 input connector. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 34 – Do not turn off the Counter if you intend to perform the Complete Performance tests. Turning the Counter off and back on resets the reference oscillator (REF OSC) selection to internal (INT) and the channel selection to CHANNEL 2. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 35: Complete Performance Tests
Performance Tests - Verifying Specifications Complete Performance Tests The Complete Performance Tests verify the specifications of the Keysight 53150A/ 151A/152A Counter listed in Chapter 6, “Specifications”. All of these tests can be performed without opening the instrument. Table 1-2 lists a summary of the performance tests.
Page 36: Test 1: External Timebase Input Test
30 minutes prior to beginning the tests. This allows the internal temperatures of the equipment to stabilize. – These tests are appropriate for the Keysight 53150A, 53151A, and 53152A Counters. 1 MHz External Timebase Input Test...
Page 37: Figure 1-2 External Timebase Test Setup
8 Press the right-arrow key once. INT begins to flash off and on. 9 Press the up- or down-arrow key once. INT changes to EXT. 10 Press the Enter key. 11 Press the Chan Select key once to select the CHANNEL 1 input connector. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 38: Mhz External Timebase Input Test
3 Verify that the Counter displays a reading of approximately 2 MHz and that the Ext Ref annunciator is activated. 4 Mark Pass or Fail for Test in the Performance Test Record on page 54. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 39: 10 Mhz External Timebase Input Test
3 Verify that the Counter displays a reading of approximately 2 MHz and that the Ext Ref annunciator is activated. 4 Mark Pass or Fail for Test in the Performance Test Record on page 54. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 40: Test 2: Channel 1 Frequency Sensitivity
2 mm (m) to 2 mm (f) Cable (2) Test 2a: 10 Hz to 20 MHz Frequency Sensitivity This test is appropriate for the Keysight 53150A, 53151A, and 53152A Counters. NOTE 1 Connect an Keysight 10503 Series Coaxial Cable between the RF output connector on the Keysight 3325A/B Synthesizer and Counter’s CHANNEL 1...
Page 41: Figure 1-3 10 Hz To 20 Mhz Frequency Sensitivity Test Setup
7 If all of the frequency values you recorded for Test are correct, mark Pass in the Performance Test Record for Test 2a. If any of the frequency readings you recorded are incorrect, mark Fail in the Performance Test Record. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 42: Test 2B: 50 Mhz To 125 Mhz Frequency Sensitivity
50 MHz to 125 MHz Frequency Sensitivity Test Setup If the 10 MHz reference output of the 53650B Synthesizer is not sufficient to NOTE drive the 53150A/51A/52A, reverse the test setup so that you drive the 83650B from the Counter. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 43 12 Set the power output of the Synthesizer (read on the Power Meter) to a power value 20 dBm above the value specified for Test in the Performance Test Record on page 54 (+.8 dBm). (The added 20 dBm compensates for the 20 dB Attenuator.) Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 44 – Do not disconnect the rest of the test setup, as these connections are also NOTE used in the Channel 2 Frequency Sensitivity test. – Do not turn off the Counter. Turning the Counter off and back on resets the reference oscillator (REF OSC) selection to internal (INT). Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 45: Test 3: Channel 2 Frequency Sensitivity
2.4 mm (m) to 2.4 mm (m) Cable (2) Test 3a: 50 MHz to 20 GHz Frequency Sensitivity This test is appropriate for the Keysight 53150A, 53151A, and 53152A Counters. NOTE 1 Connect the Keysight 11904D 2.92 mm (m) to 2.4 mm (f) Adapter to the Counter’s CHANNEL 2 input connector (refer to...
Page 46: Figure 1-5 50 Mhz To 20 Ghz Frequency Sensitivity Test Setup
9 Repeat steps 6, through 8 for each of the remaining frequencies specified for Test 3a. Don’t forget to change the power level when performing the 400 MHz and 19 GHz tests (53150A, 53151A, and 53152A) and the 16 GHz and 19 GHz tests (53152A only).
Page 47: Test 3B: 22 Ghz To 26.5 Ghz Frequency Sensitivity
6 If all of the frequency values you recorded for Test are correct, mark Pass in the Performance Test Record for Test 3b. If any of the frequency readings you recorded are incorrect, mark Fail in the Performance Test Record. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 48: Test 3C: 30 Ghz To 46 Ghz Frequency Sensitivity
Power Splitter. These connections are reused in the following tests. – Do not turn off the Counter. Turning the Counter off and back on resets the reference oscillator (REF OSC) selection to internal (INT). Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 49: Test 4: Channel 2 Power Measurement
2.4 mm (m) to 2.4 mm (m) Cable (2) Test 4a: 50 MHz to 20 GHz Power Measurement (–20 dBm) This test is appropriate for the Keysight 53150A, 53151A, and 53152A Counters. NOTE 1 Verify that the cable (with Adapter) is still connected to the RF output of the Keysight 83650B Synthesizer.
Page 50: Figure 1-6 50 Mhz To 20 Ghz (–20 Dbm) Power Measurement Test Setup
Microwave Amplifier is –20 dBm. 9 Set the Synthesizer to the first frequency value listed for Test in the Performance Test Record on page 56 (50 MHz). 10 Record the actual power reading in the Performance Test Record. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 51: Test 4B: Channel 2 22 Ghz To 26.5 Ghz Power Measurement (-20 Dbm)
3 Record the actual power reading in the Performance Test Record. 4 Repeat steps 2 and 3 for each of the remaining frequency values listed for Test 5 Mark Pass or Fail for Test in the Performance Test Record. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 52: Test 4C: Channel 2 26.5 Ghz To 46 Ghz Power Measurement (-20 Dbm)
Performance Test Record. Test 4d: Channel 2 50 MHz to 20 GHz Power Measurement (0 dBm) This test is appropriate for the Keysight 53150A, 53151A, and 53152A Counters. NOTE 1 Use the same test setup as described for Test on page 49.
Page 53: Test 4E: Channel 2 22 Ghz To 26.5 Ghz Power Measurement
3 Record the actual power reading in the Performance Test Record. 4 Repeat steps 2 and 3 for each of the remaining frequency values listed for Test 4f. 5 Mark Pass or Fail for Test in the Performance Test Record. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 54: Performance Test Record
20 MHz @ 25 mV rms (–19.2 dBm) _____________________ Channel 1 Frequency Sensitivity ❏ ❏ 50 MHz 50 MHz @ 25 mV rms (–19.2 dBm) _____________________ 125 MHz 125 MHz @ 25 mV rms (–19.2 dBm) _____________________ Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 55: Performance Test Record
Channel 2 Frequency Sensitivity 53150A 53151A 53152A ❏ ❏ 30 GHz –23 dBm _____________________ 34 GHz " _____________________ 40 GHz " _____________________ 42 GHz –17 dBm _____________________ 44 GHz " _____________________ 46 GHz " _____________________ Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 56: Performance Test Record
" " _____________________ 26.5 GHz " " _____________________ Power Measurement (–20 dBm): 53150A 53151A 53152A ❏ ❏ 30 GHz ±2.0 dB _____________________ 34 GHz " _____________________ 40 GHz " _____________________ 46 GHz " _____________________ Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 57: Performance Test Record
" " _____________________ 26.5 GHz " " _____________________ Power Measurement (0 dBm): 53150A 53151A 53152A ❏ ❏ 30 GHz ±2.0 dB _____________________ 34 GHz " _____________________ 40 GHz " _____________________ 46 GHz " _____________________ Keysight 53150A/151A/152A Assembly Level Service Guide...
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Page 59: Service
Keysight 53150A/151A/152A Microwave Frequency Counter Assembly Level Service Guide Service Introduction Returning the Counter to Keysight Technologies for Service Calibration Procedure Pre-Troubleshooting Information Troubleshooting the Counter...
Page 60: Introduction
Service Introduction This chapter provides service information for your Keysight 53150A/151A/152A. It is divided into four major sections: – Returning the Counter to Keysight Technologies for Service (page 61). This section provides you with step-by-step instructions on how to return the instrument for service.
Page 61: Returning The Counter To Keysight Technologies For Service
Service Returning the Counter to Keysight Technologies for Service Providing Repair Information Before shipping the Counter to an Keysight office for service or repair, call the nearest Keysight Sales Office to make arrangements. Then, tag and package the Keysight 53150A/151A/152A for shipment.
Page 62: Packing The Counter In The Original Packaging Materials
4 Add a layer of shock-absorbing material that is 3 to 4 inches (70 to 100 mm) thick around all sides of the instrument cushion it and to prevent it from moving within the container 5 Seal the shipping container securely. 6 Mark the shipping container FRAGILE. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 63: Calibration Procedure
10 MHz frequency standard to the Channel 1 input on the Counter’s front panel. 2 If there is a label covering the calibration adjustment access hole, remove it (see Figure 2-1). Calibration Access Hole Figure 2-1 Calibrating the Counter Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 64 Counter’s cover and into the slot in the timebase calibration screw. 4 Turn the calibration screw clockwise to increase the Counter’s reading or counter-clockwise to decrease the reading until the frequency value displayed on the Counter’s front panel is exactly 10,000,000 Hz. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 65: Pre-Troubleshooting Information
Any maintenance and repair of the opened instrument under voltage should be avoided as much as possible and, if necessary, should be carried out only by a skilled person who is aware of the hazards involved (for example, fire and electric shock). Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 66: Recommended Test Equipment
2-1. Repair Considerations Electrostatic Discharge Electronic components and assemblies in the Keysight 53150A/151A/152A can be permanently degraded or damaged by electrostatic discharge. Use the following precautions when servicing the instrument: 1 ENSURE that static-sensitive devices or assemblies are serviced at static-safe work stations providing proper grounding for service personnel.
Page 67: After Service Considerations
2 MΩ. Replace any component which results in a failure. Product Performance Checks After replacement of any functional assembly, perform the operational verification test in Chapter 1 of this guide, “Performance Tests - Verifying Specifications.” Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 68: Assembly Identification And Location
Service Assembly Identification and Location The assembly number, name, and Keysight part number for each of the Keysight 53150A, 53151A, and 53152A assemblies are listed in Table 2-1. Figure 2-2 illustrates the replaceable assemblies in the Keysight 53150A/151A/152A. Table 2-1...
Page 69 Service Figure 2-2 Replaceable Assembly Locations — Top Internal View Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 70: Troubleshooting The Counter
Power Supply connectors TB1 and TB2 (see Figure 2-3). Pin 8 TB2 (DC Out) Neutral TB1 (AC In) Pin 1 Line Approx. location of R23 Figure 2-3 A4 DC Power Supply Test-Point Locations Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 71: Table
Table 2-2, it can be adjusted using R23, which is visible on the top surface of the power supply’s circuit board. When adjusting the +5 VDC output, use a non-metallic or insulated adjustment tool. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 72: Self-Test
6 Press the up-arrow key or the down-arrow key repeatedly until DO SELF TEST is displayed, and then press and release the Enter key. 7 Observe the front-panel display and note any error messages displayed. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 73 EEPROM FAIL - SAVED SETTINGS; Invalid EEPROM The checksum of one set of user settings (1 – 9) SAV n Data. stored in EEPROM is bad. GPIB FAIL; Conf. Test The GPIB hardware failed its confidence test. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 74: Table 1-1 Table
PWR CAL FAIL The instrument’s power-calibration data is missing or corrupted. PWR CKT FAIL Failure detected in the Channel 2 power-measurement circuit. RAM FAIL Failure detected in RAM. ROM FAIL Failure detected in ROM. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 75: Table 2-2 Table
Failure detected in the heterodyne-path circuit. IIC FAIL An attempt to write to the LCD display failed. INSTCFG FAIL The instrument’s configuration data is missing or corrupted. OVER TEMPERATURE The Counter’s internal temperature is above the limit. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 76: Table 4-1 Table
SERVICE FAIL The instrument’s service data is missing or corrupted. THRU PATH FAIL Failure detected in the through-path circuit of Channel 2. VCO/COUNT CHAIN FAIL Failure detected in the VCO or the Count Chain. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 77 Keysight 53150A/151A/152A Microwave Frequency Counter Assembly Level Service Guide Replacing Assemblies - Disassembly and Reassembly Introduction Tools Required Do This First Removing the Bumpers Removing the Handle and Handle Mounts Removing the Rear Bezel Removing the Shroud Removing the Front Bezel...
Page 78: Replacing Assemblies - Disassembly And Reassembly
Replacing Assemblies - Disassembly and Reassembly Introduction This chapter provides instructions for removing major assemblies in the Keysight 53150A/151A/152A. To install an assembly, apply the removal instructions in reverse. The following disassembly and repair procedures are provided: – Removing the Bumpers pg.
Page 79: Tools Required
Counter are metric. To avoid damage to the threaded holes in the chassis that handle mount screws fit in, be sure to use the correct screws. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 80: Removing The Bumpers
Place both bumpers on their inner edges on your work surface, and then place the Counter on top of them. The rear bumper can also serve as a holder for screws and other hard ware temporarily removed from the Counter. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 81: Removing The Handle And Handle Mounts
Counter, and remove the mounts. TORX Screws Counter Handle Mount TORX Screws Handle Mount Figure 3-3 Removing the Handle Mounts When reattaching the handle mounts, limit the torque on the TORX screws to 4 NOTE to 5 inch-pounds. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 82: Removing The Rear Bezel
Rear Bezel Mounting Screws 3 Use a #1 Phillips screwdriver to remove the three 4-40 x 3/16-inch countersunk shroud screws on the top of the Counter near the back edge of the shroud (see Figure 3-5). Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 83 5 Carefully work the rear bezel out of the back end of the shroud by alternately pulling opposite corners of the bezel away from the Counter a small amount at a time. Do not use tools to pry the bezel out of the shroud, since this could damage it. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 84: Removing The Shroud
Bezel” on page 82). 4 Use a #1 Phillips screwdriver to remove the three 4-40 x 3/16-inch countersunk shroud screws from the top of the Counter near the front edge of the shroud (see Figure 3-7). Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 85 5 Turn the Counter upside-down, and remove the three 4-40 x 3/16-inch countersunk shroud screws on the bottom of the Counter near the front edge of the shroud (see Figure 3-8). Shroud Screws Figure 3-8 Bottom Front Shroud Screws Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 86 Reduce the amount of pressure you apply to the rear panel when the shroud begins to slide off the Counter, and carefully remove the shroud the rest of the way (see Figure 3-9). Figure 3-9 Removing the Shroud Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 87: Removing The Front Bezel
Front Bezel Screws 3 Carefully slide the front bezel off the front panel. When reattaching the front bezel to the front-panel assembly, do not tighten CAUTION the screws excessively to prevent damage to the bezel. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 88: Removing The Rear Panel Assembly
EXT DC RS-232 Rear Panel Screws Figure 3-11 Rear Panel Assembly Screws 5 Remove the six 4-40 x 3/16-inch self-locking flathead machine screws that attach the rear panel assembly to the chassis (see Figure 3-11). Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 89 Main ~ Power switch on the rear panel assembly and connector J3 on the Battery Option circuit board (J3 is the third connector from the back edge of the board). Disconnect this cable from J3 on the Battery Option circuit board. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 90 When reinstalling the Rear Panel Assembly, position it carefully to avoid CAUTION damage to the power LED, the serial-port connector (RJ-12), and the main board. If these components are not correctly aligned with the openings in the back panel, they may be damaged. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 91: Removing The Cooling Fan
3-12). Figure 3-12 Cooling Fan Screws 6 While removing the cooling fan from the chassis, guide the cable to be sure it does not catch on other cables or other components of the Counter. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 92: Replacing The Power Supply
12 Use a pair of needle-nose pliers to position one of the -inch spacers removed in step 6 between the circuit board and the power-supply chassis, and align the spacer with the mounting holes in the circuit board and the chassis. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 93 “Power Supply Check” procedure on page 70. 23 If necessary, adjust the +5 VDC output of the power supply using the procedure titled “Adjusting the +5 VDC Output” on page 71. 24 Reassemble the Counter. Keysight 53150A/151A/152A Assembly Level Service Guide...
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Page 95 Keysight 53150A/151A/152A Microwave Frequency Counter Assembly Level Service Guide Replaceable Parts Introduction Replaceable Parts How To Order A Part Parts Identification...
Page 96: Replaceable Parts
Replaceable Parts Introduction This chapter contains parts-ordering information for the Keysight 53150A/151A/ 152A Counter. Table 4-1 lists the reference designations used in the parts list and throughout this guide, Table 4-2 lists all replaceable assemblies and parts. Figure 4-1 is an exploded view of the Keysight 53150A/151A/152A’s internal...
Page 97: Replaceable Parts
1 Reference designation. 2 Keysight part number. 3 The quantity (QTY) of the part used in the instrument (field-replaceable items only). 4 Description of the part. 5 Typical manufacturer's part number for the part (when available). Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 98: How To Order A Part
Replaceable Parts How To Order A Part Keysight Technologies wants to keep your parts ordering process as simple and efficient as possible. To order parts, perform the following steps: 1 Identify the part and the quantity you need. 2 Determine the ordering method to be used, and contact Keysight.
Page 99: Contacting Keysight Technologies
Depending on where you are in the world, there are one or more ways to obtain parts or parts information from Keysight Technologies. – Outside the United States, contact your local Keysight Technologies sales office. – Within the United States, we encourage you to order replacement parts or request parts information directly by telephone or mail from Keysight using the telephone numbers or address listed on the next page.
Page 100: Parts Identification
Figure 4-3. When ordering from Keysight Technologies, the important numbers to note from the Parts List are the Keysight Part Number, the part-number check digit (in the “CD” column), and the quantity of the part(s) you need.
Page 101 Replaceable Parts H3, H4 Figure 4-1 Keysight 53150A/151A/152A Exploded View — Internal Parts Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 102: Figure 4-2 Keysight 53150A/151A/152A Exploded View Cabinet And External Parts
Replaceable Parts MP7 H16 Figure 4-2 Keysight 53150A/151A/152A Exploded View — Cabinet and External Parts Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 103 Replaceable Parts P/O A10 P/O A10 P/O A10 P/O A10 P/O A10 Figure 4-3 Keysight 53150A/151A/152A Top View Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 104: Keysight 53150A/151A/152A Replaceable Parts
1390-0473 WASHER, RETAINING (USE WITH H6) 5000420-00 6960-0045 HOLE PLUG, REAR PANEL 5000246-02 0380-0643 SCREW, HEX STANDOFF, 6-32 — 3050-0010 WASHER, FLAT, #6 — 2190-0007 WASHER, LOCK, #6 — 2420-0003 NUT, HEX, 6-32 — Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 105: Table
53150-60208 2041088-01 CABLE ASSY., BATTERY INTERCONNECT — — 2041082-01 CABLE ASSY., HARNESS, INTERCONNECT 53150-60212 2041087-02 CABLE ASSY., HARNESS, RETURN 53150-60211 2041087-01 CABLE ASSY., HARNESS, INTERCONNECT 53150-60213 2041092-01 CABLE ASSY., STATUS INTERFACE [a] 53152A only Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 106: Keysight 53150A/151A/152A Accessories And
[e] Qty. = 8 without Option 002 Part of A8 [g] In Counters without Option 002, this harness is used in place of W7 and W8. Table 4-3 Keysight 53150A/151A/152A Accessories and Miscellaneous Items Description Keysight Part Number BATTERY 12 V 53150-80010 CABLE ASSY., EXT.
Page 107: Backdating
Keysight 53150A/151A/152A Microwave Frequency Counter Assembly Level Service Guide Backdating Introduction...
Page 108: Introduction
If a Manual Updating Changes package is included with your Counter, modify existing guide information or replace the affected pages as directed in the pages of the Manual Updating Changes package. For additional information, contact the nearest Keysight Sales and Support Office. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 109: Specifications
Keysight 53150A/151A/152A Microwave Frequency Counter Assembly Level Service Guide Specifications For the specifications and characteristics of the 53150A/151A/152A Microwave Frequency Counter, refer to the datasheet at http://literature.cdn.keysight.com/litweb/pdf/5966-3118E.pdf...
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Page 111: Index
Front Panel at a Glance battery electrostatic discharge fuse Battery Charger Emergency Response Bumpers equipment Equipment Required Error Messages GPIB Cables –12V FAIL Cabinet 12V FAIL cabinet –5V FAIL Cabinet Parts and Handle ADC FAIL Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 112 Performance Test Record specifications Test 3f Standby mode Channel 2 30 GHz to 46 GHz performance test record support options Power Measurement (0 surface-mount components dBm) Power Measurement test equipment Power Supply Assembly test record Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 113 Tools Tools Required Top View top view troubleshooting Troubleshooting the Counter warranty Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 114 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight 53150A/151A/152A Assembly Level Service Guide...
Page 115 This information is subject to change without notice. Always refer to the Keysight website for the latest revision. © Keysight Technologies 1999 - 2017 Edition 3, December 1, 2017 Printed in Malaysia *53150-90015*...

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Keysight Technologies 53150A Service Manual

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1 Performance Tests - Verifying Specifications

2 Service

3 Replacing Assemblies - Disassembly and Reassembly

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