Page 1 Keysight E5053A Microwave Downconverter Service Guide...
Page 4 NOTE The E5053A complies with INSTALLATION CATEGORY II as well as POLLUTION DEGREE 2 in IEC61010-1. The E5053A is an INDOOR USE product. NOTE The LEDs in the E5053A are Class 1 in accordance with IEC60825-1,...
Page 5 To avoid the danger of introducing additional hazards, do not install substitute parts or perform unauthorized modifications to the instrument. Return the instrument to a Keysight Technologies Sales and Service Office for service and repair to ensure that safety features are maintained in operational condition.
Page 6 Safety Symbols General definitions of safety symbols used on the instrument or in manuals are listed below. Instruction Manual symbol: the product is marked with this symbol when it is necessary for the user to refer to the instrument manual. Alternating current.
Page 7 Further, to the maximum extent permitted by applicable law, Keysight disclaims all warranties, either express or implied with regard to this manual and any information contained herein, including but not limited to the implied warranties of merchantability and fitness for a particular purpose.
Page 8 Typeface Conventions Sample (bold) Boldface type is used when a term is defined or emphasised. Sample (Italic) Italic type is used for emphasis. Indicates a hardkey (key on the front panel or key / [Sample] key external keyboard) labeled “Sample.” “key” may be omitted.
Page 9: Table Of Contents
Contents 1. General Information Organization of Service Guide ............6 Instrument Covered by This Manual .
Page 10 Contents Performance test failure troubleshooting ..........40 5.
Page 11 Contents Power Divider Replacement ............. 84 Tools required .
Page 12 Starting the E5053A ........
Page 13: General Information
General Information The Service Guide is a guide to servicing the E5053A Microwave Downconverter. The guide contains information requisite to do performance tests, adjustments, troubleshooting, and repairs.
Page 14: Organization Of Service Guide
This chapter provides the adjustment information for the E5053A to ensure that it is within its specifications. The adjustment must be performed Keysight’s qualified service personnel. If you need the adjustment for your E5053A, it should be sent to the nearest Keysight Technologies service office.
Page 15: Instrument Covered By This Manual
Changes supplement. The supplement for this manual is identified by this manual's printing data and is available from Keysight Technologies. If the serial prefix or number of an instrument is lower than that on the title page of this manual, see Appendix A, Manual Changes.
Page 16: Required Equipment
General Information Required Equipment Required Equipment Table 1-1 lists the recommended equipment for performing maintenance on the E5053A. Table 1-1 Recommended Test Equipment Equipment Critical specifications Recommended Model Qty. Phase Noise Test No Substitute Keysight E5504 Opt. 001 System W/opt. 401 or Opt. 402 Signal Generator Frequency: 10 MHz to 26.5 GHz...
Page 17 Table 1-2 Alternative Test Equipment Equipment Critical specifications Model Qty. Signal Generator Frequency: 10 MHz to 7 GHz Keysight E8257C w/Opt. Low SSB Phase Noise Network Analyzer Frequency: 10 M to 3 GHz Keysight 8753ES Power Meter No Substitute Keysight E4419A...
Page 18 General Information Required Equipment Chapter 1...
Page 19: Performance Tests
Performance Tests This chapter provides outline of the E5053A performance tests.
Page 20: Introduction
Performance Tests Introduction Introduction This chapter provides the performance tests outline for Keysight E5053A. The performance test names are listed in Table 2-1. The test procedures are described sequentially in the following pages. NOTE Allow the analyzer to warm up for at least 30 minutes before you execute any of the performance tests.
Page 21: Individual Test Description
Individual Test Description Individual Test Description 1. LOCAL Output Frequency Accuracy Test Description This test checks the frequency accuracy of the E5053A LO_Out port output signal. Specification @23 ± 5 ⋅C < ± 10 ppm @ 3.025 GHz to 10.025 GHz...
Page 22: Local Output Level Accuracy Test
Performance Tests Individual Test Description 2. LOCAL Output Level Accuracy Test Description This test checks the level accuracy of the E5053A LO_Out port output signal. Specification @23 ± 5 ⋅C ± 2 dB Level accuracy 10 to 16 dBm @ 3.025 GHz to 6.025 GHz 10 to 15 dBm @ 6.075 GHz to 10.025 GHz...
Page 23: Mixer Bias Output Current Accuracy Test
Individual Test Description 3. Mixer Bias Output Current Accuracy Test Description This test checks the current accuracy of the E5053A IF_In port. Specification @23 ± 5 ⋅C ± (10 % + 0.1 mA) @ -10 mA to + 10 mA...
Page 24: Local Phase Noise Sensitivity Test
Performance Tests Individual Test Description 4. LOCAL Phase Noise Sensitivity Test Description This test checks the phase noise sensitivity of the E5053A LO_Out port outpu signal. Specification @23 ± 5 ⋅C Local Phase Noise sensitivity [dBc/Hz] Input Offset from carrier (Hz)
Page 25 Performance Tests Individual Test Description Test point and limits @ Frequency: 3.325 GHz, Level: 15 dBm Offset Frequency [Hz] Test limit [dBc/Hz] < -109.6 10 k < -115.6 100 k < -112.6 < -126.6 10 M < -140.0 40 M <...
Page 26 Performance Tests Individual Test Description @ Frequency: 10.025 GHz, Level: 15 dBm Offset Frequency [Hz] Test limit [dBc/Hz] < -100.0 10 k < -103.0 100 k < -102.0 < -119.0 10 M < -140.0 40 M < -140.0 100 M <...
Page 27: Adjustment
This chapter provides the adjustment information for the E5053A to ensure that it is within its specifications. The adjustment must be performed Keysight’s qualified service personnel. If you need the adjustment for your E5053A, it should be sent to the nearest Keysight Technologies service office.
Page 28: Safety Considerations
Intentional interruption of the protective ground system for any reason is prohibited. Warm-up for Adjustment Warm-up the E5053A for at least 30 minute before performing any of the following Adjustment procedures to ensure proper results and correct instrument operation. Required Equipment...
Page 29: Required Adjustment After Replacing Assembly
Table 3-1 must be required. The adjustment must be performed Keysight’s qualified service personnel. If you need the adjustment for your E5053A, it should be sent to the nearest Keysight Technologies service office. Table 3-1 Required Adjustment Item after Replacing Assembly...
Page 30: Vcxo Adjustment
Frequency Counter Keysight 53181A BNC(m)-BNC(m) Cable, 61 cm Keysight p/n 8120-1839 OCXO Adjustment The purpose of this procedure is to adjust the oscillation frequency of OVEN, and to find the DAC value where CH1 frequency is 10 MHz + 0.2 ppm and CH2 is 10 MHz - 0.2 ppm.
Page 31: Outpur Level Adjustment
Keysight E4413A Power Sensor Keysight E4412A N(f)-SMA(m) Adapter Keysight p/n 1250-1562 IF Path Adjustment The purpose of this procedure is to obtain correction factor for IF IN to IF OUT gain and frequncy characteristic when an external mixer is used.
Page 32: Mixer If Adjustment
Recommended Model Network Analyzer Keysight E5071B Calibration kit Keysight 85033E Termination SMA(m), 2ea Keysight p/n 1818-0118 SMA(m)-SMA(m) Cable, 61cm Keysight 11500E APC-7-SMA(f) Adapter Keysight p/n 1250-1747 Mixer IF Adjustment The purpose of this procedure is to adjust the mixer conversion loss on IF frequency.
Page 33: Level Monitor Adjustment
Keysight E4412A Power Splitter Keysight 11667B Termination SMA(m), 3ea Keysight p/n 1810-0118 SMA 10 dB PAD Keysight 8493C option 010 SMA(m)-SMA(m) Cable, 61cm Keysight 11500E N(f)-SMA(m) Adapter Keysight p/n 1250-1562 Current Source Adjustment The purpose of this procedure is to adjust the gain and offset of the current source from IF input.
Page 34 Adjustment Required Adjustment after Replacing Assembly Description Recommended Model Dual Banana-BNC(f) adapter Keysight p/n 1251-2277 BNC(m)-BNC(m) Cable, 61 cm Keysight p/n 8120-1839 BNC(f)-SMA(m) Adapter Keysight p/n 1250-1200 Termination SMA(m), 2ea Keysight p/n 1810-0118 Chapter 3...
Page 35: Troubleshooting
Troubleshooting This chapter provides the procedure to isolate a faulty assembly in the E5053A.
Page 36: Introduction
Troubleshooting Introduction Introduction WARNING These servicing instructions are for use by qualified personnel only. To avoid possible electrical shock, do not perform any servicing unless you are qualified to do so. WARNING The opening of covers or removal of parts is likely to expose dangerous voltages. Disconnect the instrument from its power supply beforehand.
Page 37: To Troubleshoot The Instrument
Step 1. Turn the E5053A power on With the E5053A plugged in and the power turned off, the front panel orange standby LED should be on. When the front panel power switch is turned on , the orange LED should go out and the green LED should come on.
Page 38 Troubleshooting To Troubleshoot the Instrument Figure 4-1 Primary trouble isolation flowchart Chapter 4...
Page 39: Power Supply Troubleshooting
Requirements in Appendix B. Check the Power Supply Unit Output Step 1. Remove the E5053A’s outer cover. Step 2. Turn the E5053A power on. Step 3. Measure the output voltage (+3.3, +5, +12, -12 V) of each power supply unit using a voltmeter with a small probe.
Page 40: Check The Voltages On The A12 Board
Figure 4-3. Figure 4-3 Voltage Location of the A12 board Step 2. Turn the E5053A power on. Step 3. Measure the DC voltages on the A12 board using a voltmeter with a small probe. See Table Chapter 4...
Page 41 Troubleshooting Power Supply Troubleshooting for power lines and limits. Table 4-2 Output voltages of the A12 board Supply Range + 5 V CH1 (for A12 Digital) + 4.5 to + 5.5 + 3.3 V CH1 (for A12 Digital) + 2.97 to +3.63 + 9 V CH1 (for A4, A5) + 8.1 to +9.9 - 12 V CH1 (for OCXO)
Page 42: Troubleshooting Using Service Function
E5053 Test. E5053 Test E5053 test always takes place once the E5053A and the E5052A are turned on. When a failure for E5053A is detected, a message "Downconverter test failed" is displayed. The content of the E5053 test includes the dc power supply voltage, source PLL synthesizer and level controller (ALC) tests.
Page 43: Contents Of The Power On Test Results
Troubleshooting Troubleshooting Using Service Function Contents of the power on test results The E5053 test contains 6 test results shown in Figure 4-4. Each test result can display various operating characteristics of the analog measurement section. You can identify a failure section with the test results.
Page 44 Troubleshooting Troubleshooting Using Service Function A15 Result Figure 4-8 is an example of the A15 Result. Figure 4-8 A15 Result example A6 Result Figure 4-9 is an example of the A6 Result. Figure 4-9 A6 Result example A12 Result Figure 4-10 is an example of the A12 Result.
Page 45: E5053 Test Failure Troubleshooting
Troubleshooting Troubleshooting Using Service Function E5053 Test Failure Troubleshooting Table 4-3 represents the contents of the test results and the relationships of failed tests to probable faulty board assemblies. If the instrument fails the E5053 test, replace the faulty board assembly as shown in Table 4-3.
Page 46: Performance Test Failure Troubleshooting
This section describes the adjustment and troubleshooting procedures used when the E5053A fails the performance tests. If the performance of the instrument is critical for the test limits and seems to be adjustable, perform first the adjustment(s) related to the failed test.
Page 47: Adjustment Failure Troubleshooting
Troubleshooting Performance test failure troubleshooting Adjustment failure troubleshooting Table 4-5 represents the relationships between the failed adjustment and probably faulty assembly. Note that this table lists some typical cases. There are possibilities that another assembly may be faulty. Table 4-5 Adjustment failure troubleshooting information First failed adjustment Probable faulty board assembly...
Page 48: Performance Test Failure Troubleshooting
Troubleshooting Performance test failure troubleshooting Table 4-6 Adjustment failure troubleshooting information First failed adjustment Probable faulty board assembly Num. OCXO Mixer (Ch2) (Ch2) (Ch2) VCXO Adjust (Channel 2) OCXO Adjust (Channel 2) Pretune Adjust (Channel 2) Sampler RF Adjust (Channel 2) Output level Adjust (Channel 2) IF Path Adjust (Channel 2) IF Gain Adjust (Channel 2)
Page 49 Troubleshooting Performance test failure troubleshooting Table 4-7 Performance test failure troubleshooting information Test First failed test Probable faulty board assembly OCXO Mixer (Ch1) (Ch1) (Ch1) LOCAL Output Freq Acc Test (Channel 1) LOCAL Output Level Acc Test (Channel 1) Mixer Bias Output Current Acc Test (Channel 1) LOCAL Phase Noise Sensitivity Test (Channel...
Page 50 Troubleshooting Performance test failure troubleshooting Chapter 4...
Page 51: Replaceable Parts
Replaceable Parts This chapter contains information for ordering replacement parts for the E5053A.
Page 52: Ordering Information
Replaceable Parts Ordering Information Ordering Information To order a part in the replaceable parts lists, quote the Keysight Technologies part number, indicate the quantity required, and address the order to the nearest Keysight Technologies Sales Office. To order a part not listed in the replaceable parts lists, include the instrument model number, the description and function of the part, and the quantity of parts required.
Page 53: Replaceable Parts List
Replaceable Parts Replaceable Parts List Replaceable Parts List Power Cables and Plug Configurations Figure 5-1 Power Cables and Plug Configurations Chapter 5...
Page 54: Top View (Major Assemblies)
Replaceable Parts Replaceable Parts List Top View (Major Assemblies) Figure 5-2 Top View (Major Assemblies) Chapter 5...
Page 55 Replaceable Parts Replaceable Parts List Table 5-1 Top View (Major Assemblies) Ref. Keysight Part Qty. Description Desig. Number E5053-62006 A6 RECEIVER ASSEMBLY E5053-62005 A5/A15 REFERENCE PLL ASSEMBLY E5053-69005 A5/A15 REFERENCE PLL ASSEMBLY (Exchange) Table 5-10 OCXO ASSEMBLY Table 5-14 FAN ASSEMBLY...
Page 56: Top View (Cables)
Replaceable Parts Replaceable Parts List Top View (Cables) Figure 5-3 Top View (Cables) Chapter 5...
Page 57 Replaceable Parts Replaceable Parts List Table 5-2 Top View (Cables) Ref. Keysight Part Qty. Description Desig. Number E5053-61644 FLAT CABLE ASSEMBLY E5053-61639 RF CABLE ASSEMBLY E5053-61631 RF CABLE ASSEMBLY E5053-61635 RF CABLE ASSEMBLY E5053-61637 RF CABLE ASSEMBLY E5053-61633 RF CABLE ASSEMBLY...
Page 58: Top View (Miscellaneous Parts)
Replaceable Parts Replaceable Parts List Top View (Miscellaneous Parts) Figure 5-4 Top View (Miscellaneous Parts) Chapter 5...
Page 59 Replaceable Parts Replaceable Parts List Table 5-3 Top View (Miscellaneous Parts) Ref. Keysight Part Qty. Description Desig. Number 0515-0666 SCREW-MACH M3.0 x L18 PN T10 0515-0372 SCREW-MACH M3.0 x L8 PN T10 0515-0372 SCREW-MACH M3.0 x L8 PN T10 1400-1334...
Page 60: Bottom View (Major Assembly/Cables)
Replaceable Parts Replaceable Parts List Bottom View (Major Assembly/Cables) Figure 5-5 Bottom View (Major Assembly / Cables) Table 5-4 Bottom View (Major Assembly / Cables) Ref. Keysight Part Qty. Description Desig. Number E5053-62004 A4/A14 YIG PLL ASSEMBLY E5053-69004 A4/A14 YIG PLL ASSEMBLY (Exchange)
Page 61: Bottom View (Miscellaneous Parts)
Replaceable Parts Replaceable Parts List Bottom View (Miscellaneous Parts) Figure 5-6 Bottom View (Miscellaneous Parts) Table 5-5 Bottom View (Miscellaneous Parts) Ref. Keysight Part Qty. Description Desig. Number 0515-1382 SCREW-MACH M3.5 x 6 FL T15 0515-0372 SCREW-MACH M3.0 x 8 PN T10 0515-0666 SCREW-MACH M3.0 x 8 PN T10...
Page 62: Top/Front View (Cables)
Replaceable Parts Replaceable Parts List Top/Front View (Cables) Figure 5-7 Front View (Cables) Table 5-6 Top/Front View (Cables) Ref. Keysight Part Qty. Description Desig. Number E5053-61612 RF CABLE SR E5053-61614 RF CABLE SR E5053-61609 RF CABLE SR E5053-61604 RF CABLE SR...
Page 63: Front View (Miscellaneous Parts)
Replaceable Parts Replaceable Parts List Front View (Miscellaneous Parts) Figure 5-8 Front View (Miscellaneous Parts) Table 5-7 Front View (Miscellaneous Parts) Ref. Keysight Part Qty. Description Desig. Number 1250-1251 ADAPTER SMA(F)-SMA(F) E5053-01203 ANGLE E5053-66511 LED BOARD E5053-61901 SW WIRE ASSY...
Page 64: Rear View
Replaceable Parts Replaceable Parts List Rear View Figure 5-9 Rear View Chapter 5...
Page 65 Replaceable Parts Replaceable Parts List Table 5-8 Rear View Ref. Keysight Part Qty. Description Desig. Number 2110-1017 FUSE 3A 250V 0515-0666 SCREW-MACH M3.0 x L18 PN T10 E5070-24011 WAHSER 1250-0252 BNC CONN 2190-0102 WAHSER 2950-0035 0515-0372 SCREW-MACH M3.0 x L8 PN T10 0515-2032 SCREW-MACH M3.0 x L8 FL T10...
Page 66: Cover Assembly
Replaceable Parts Replaceable Parts List Cover Assembly Figure 5-10 Cover Assembly Chapter 5...
Page 67 Replaceable Parts Replaceable Parts List Table 5-9 Cover Assembly Ref. Keysight Part Qty. Description Desig. Number 5041-9176 TRIM STRIP E5053-60002 COVER ASSEMBLY 5041-9187 STRAP HANDLE REAR 0515-2049 SCREW-MACH M5.0 x L16 FL T20 08720-00081 STRAP HANDLE 5041-9186 STRAP HANDLE FRT 0515-2049 SCREW-MACH M5.0 x L16 FL T20...
Page 68: Ocxo Assembly
Replaceable Parts Replaceable Parts List OCXO Assembly Figure 5-11 OCXO Assembly Chapter 5...
Page 69 Replaceable Parts Replaceable Parts List Table 5-10 OCXO Assembly Ref. Keysight Part Qty. Description Desig. Number 0400-0356 GROMMET 0380-1402 SPACER 0515-0665 SCREW-MACH M3.0 x L14 PN T10 3050-1628 WASHER E5053-01204 ANGLE 0515-0372 SCREW-MACH M3.0 x L8 PN T10 2200-0103 SCREW-MACH 4-40 0.25-IN-LG PN POZI...
Page 70: Front Panel Assembly
Replaceable Parts Replaceable Parts List Front Panel Assembly Figure 5-12 Front Panel Assembly Chapter 5...
Page 71 Replaceable Parts Replaceable Parts List Table 5-11 Front Panel Assembly Ref. Keysight Part Qty. Description Desig. Number E5053-00201 PANEL FRONT 04191-08000 SPRING 08673-60040 CONNECTOR ASSEMBLY-OUTPUT 2190-0016 WASHER 2950-0001 E5053-61621 RF CABLE SR E5053-61622 RF CABLE SR E5052-61611 SR CABLE ASSY...
Page 72: Front Panel Rear Assembly
Replaceable Parts Replaceable Parts List Front Panel Rear Assembly Figure 5-13 Front Panel Rear Assembly Chapter 5...
Page 73 Replaceable Parts Replaceable Parts List Table 5-12 Front Panel Rear Assembly Ref. Keysight Part Qty. Description Desig. Number 1250-1251 ADAPTER SMA(F)-SMA(F) E5053-61607 RF CABLE SR E5053-61606 RF CABLE SR E5053-61605 RF CABLE SR 08493-60013 3dB ATT 0955-1487 MIXER 1250-1788 ADAPTER SMA(M)-SMA(M)
Page 74: Yig Assembly
Replaceable Parts Replaceable Parts List YIG Assembly Figure 5-14 YIG Assembly Table 5-13 YIG Assembly Ref. Keysight Part Qty. Description Desig. Number 0515-0372 SCREW-MACH M3.0 x L8 PN T10 0515-0430 SCREW-MACH M3.0 x L6 PN T10 E5053-00643 CASE SHIELD 5087-7715...
Page 75: Fan Assembly
Replaceable Parts Replaceable Parts List Fan Assembly Figure 5-15 Fan Assembly Table 5-14 Fan Assembly Ref. Keysight Part Qty. Description Desig. Number 0515-0666 SCREW-MACH M3.0 x L18 PN T10 E5070-24011 WAHSER 1410-1580 GEL BUSH E5070-61015 E5053-00611 PLATE FAN MOUNT 8160-0441...
Page 76: Ps Wire Assembly
Replaceable Parts Replaceable Parts List PS Wire Assembly Figure 5-16 PS Wire Assembly Chapter 5...
Page 77 Replaceable Parts Replaceable Parts List Table 5-15 PS Wire Assembly Ref. Keysight Part Qty. Description Desig. Number 0515-0372 SCREW-MACH M3.0 x L8 PN T10 0515-0372 SCREW-MACH M3.0 x L8 PN T10 0515-0380 SCREW-MACH M4.0 x L10 PN T20 E5053-61651 WIRE ASSY...
Page 78: Other Parts
Replaceable Parts Replaceable Parts List Other Parts Table 5-16 Other Parts Keysight Part Number Qty. Description USER’S GUIDE E5053-900x0 SERVICE GUIDE E5053-901x0 CD-ROM (DOCUMENTATION) E5053-9050x *1. The number indicated by “x” in the part number of each manual, or CD-ROM, 0 for the first edition, is incre- mented by 1 each time a revision is made.
Page 79: Replacement Procedure
Replacement Procedure This chapter provides procedure for removing and replacing the major assemblies in the E5053A.
Page 80: Replacing An Assembly
Replacement Procedure Replacing an Assembly Replacing an Assembly The following steps show the sequence for replacing an assembly in the E5053A. 1. Identify the faulty group. Refer to Chapter 4, “Troubleshooting.” 2. Order a replacement assembly. Refer to Chapter 5, “Replaceable Parts.”...
Page 81: Required Tools
Replacement Procedure Required Tools Required Tools The following tools are required for repair of E5053A. Table 6-1 Required Tools Assembly TORX screwdriver flat pozidr open wrench open edge torque screwd screwd wrenc river river T10 T15 T20 1/2 in. 3/8 in.
Page 82: Outer Cover Removal
Figure 6-1 for this procedure. Step 1. Disconnect the power cable from the E5053A. Step 2. Remove the four TORX T15 screws (item 1) fastening the four rear foot Step 3. Remove the four TORX T15 screws (item 2) fastening the cover.
Page 83 Replacement Procedure Outer Cover Removal Figure 6-1 Outer Cover Removal Chapter 6...
Page 84: Front Assembly Removal
Replacement Procedure Front Assembly Removal Front Assembly Removal Tools required • TORX screwdriver T10, T15 and T20 • Flat edge screwdriver • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) Removal Procedure Refer to Figure 6-2 for this procedure.
Page 85 Replacement Procedure Front Assembly Removal Figure 6-2 Front Assembly Removal Chapter 6...
Page 86: Switch Wire Assembly Replacement
Replacement Procedure Switch Wire Assembly Replacement Switch Wire Assembly Replacement Tools required • TORX screwdriver T8, T10, T15 and T20 • Flat edge screwdriver • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) Removal Procedure Refer to Figure 6-3 for this procedure.
Page 87 Replacement Procedure Switch Wire Assembly Replacement Figure 6-3 Switch Wire Assembly Removal Chapter 6...
Page 88: Rf In Connector Replacement
Replacement Procedure RF In Connector Replacement RF In Connector Replacement Tools required • TORX screwdriver T10, T15 and T20 • Flat edge screwdriver • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) • Open-end wrench, 6.5mm (for holding flat part of blocking capacitor) •...
Page 89 Replacement Procedure RF In Connector Replacement Figure 6-4 RF In Connector Removal Chapter 6...
Page 90: Mixer Replacement
Replacement Procedure Mixer Replacement Mixer Replacement Tools required • TORX screwdriver T10, T15 and T20 • Flat edge screwdriver • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) • Open-end wrench, 5.5 mm Removal Procedure NOTE The following procedure is common for both mixers.
Page 91 Replacement Procedure Mixer Replacement Figure 6-5 Mixer Removal Chapter 6...
Page 92: Power Divider Replacement
Replacement Procedure Power Divider Replacement Power Divider Replacement Tools required • TORX screwdriver T10, T15 and T20 • Flat edge screwdriver • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) • Open-end wrench, 5.5 mm and 6.5 mm Removal Procedure Refer to Figure 6-6...
Page 93 Replacement Procedure Power Divider Replacement Figure 6-6 Power divider Removal Chapter 6...
Page 94: Sma Connector Replacement
Replacement Procedure SMA Connector Replacement SMA Connector Replacement Tools required • TORX screwdriver T10, T15 and T20 • Flat edge screwdriver • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) Removal Procedure Refer to Figure 6-7 for this procedure.
Page 95 Replacement Procedure SMA Connector Replacement Figure 6-7 SMA Connector removal Chapter 6...
Page 96: Panel Front Replacement
Replacement Procedure Panel Front Replacement Panel Front Replacement Tools required • Flat edge screwdriver • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) Removal Procedure Refer to Figure 6-8 for this procedure. Step 1. Disconnect the four semi-rigid cables (item 1) from the front panel. NOTE When reconnecting the semi-rigid cables, make sure that the cables are connected to the same connectors from which they previously came.
Page 97 Replacement Procedure Panel Front Replacement Figure 6-8 Panel Front Removal Chapter 6...
Page 98: A4/A14 Yig Pll Board Replacement
Step 1. Remove the outer cover as described in “Outer Cover Removal” on page Step 2. Turn over the E5053A. Step 3. Disconnect the flat cable (item 1). Step 4. Disconnect the RF cable (item 2).
Page 99 Replacement Procedure A4/A14 YIG PLL Board Replacement Figure 6-9 A4/A14 YIG PLL Board Removal Chapter 6...
Page 100: A5/A15 Reference Pll Board Replacement
Replacement Procedure A5/A15 Reference PLL Board Replacement A5/A15 Reference PLL Board Replacement Tools Required • TORX screwdriver, T10, T15, and T20 Removal procedure Refer to Figure 6-10 for this procedure. NOTE The following procedure is common for the both A5 and A15 assemblies. Refer to the items that you intend to remove or replace.
Page 101 Replacement Procedure A5/A15 Reference PLL Board Replacement Figure 6-10 A5/A15 Reference PLL Board Removal Chapter 6...
Page 102: A6 Receiver Board Replacement
Replacement Procedure A6 Receiver Board Replacement A6 Receiver Board Replacement Tools Required • TORX screwdriver, T10, T15, and T20 • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) Removal Procedure Refer to Figure 6-11 for this procedure. Step 1.
Page 103 Replacement Procedure A6 Receiver Board Replacement Figure 6-11 A6 Receiver Board Removal Chapter 6...
Page 104: A12 Pis Digiful I/F Board Replacement
Replacement Procedure A12 PIS DIGIFUL I/F Board Replacement A12 PIS DIGIFUL I/F Board Replacement Tools Required • TORX screwdriver, T10, T15, and T20 Removal Procedure Refer to Figure 6-12 for this procedure. Step 1. Remove the outer cover as described in “Outer Cover Removal”...
Page 105 Replacement Procedure A12 PIS DIGIFUL I/F Board Replacement Figure 6-12 A12 PIS DIGIFUL I/F Board Removal Chapter 6...
Page 106: Ocxo Assembly Replacement
Replacement Procedure OCXO Assembly Replacement OCXO Assembly Replacement Tools Required • TORX screwdriver, T10, T15, and T20 • Pozidriv screwdriver, pt size #2 (medium) Removal Procedure Refer to Figure 6-13 for this procedure. NOTE The following procedure is common for both OCXO assemblies. Refer to the items that you intend to remove or replace.
Page 107 Replacement Procedure OCXO Assembly Replacement Figure 6-13 OCXO Assembly Removal Chapter 6...
Page 108: Yto (Yig Tuned Oscillator) Assembly Replacement
Replacement Procedure YTO (YIG Tuned Oscillator) Assembly Replacement YTO (YIG Tuned Oscillator) Assembly Replacement Tools Required • TORX screwdriver, T10, T15, and T20 • Open-end torque wrench, 5/16 inch (set to 10 in-lb) (for reconnecting SMA connector) Removal Procedure Refer to Figure 6-14 for this procedure.
Page 109 Replacement Procedure YTO (YIG Tuned Oscillator) Assembly Replacement Figure 6-14 YTO Assembly Removal Chapter 6...
Page 110: Power Supply Assembly Replacement
Step 1. Remove the outer cover as described in “Outer Cover Removal” on page 74 Step 2. Turn over the E5053A. Step 3. Release the two flat cables from the cable clamp (item 1). Step 4. Disconnect the two flat cables (item 2).
Page 111 Replacement Procedure Power Supply Assembly Replacement Figure 6-15 Power Supply Assembly Removal Chapter 6...
Page 112: Inlet Assembly Replacement
Step 1. Remove the outer cover as described in “Outer Cover Removal” on page 74 Step 2. Turn over the E5053A. Step 3. Release the cables from the cable clamps (item 1) on the cover. Step 4. Remove the four TORX T10 screws (item 2).
Page 113 Replacement Procedure Inlet Assembly Replacement Figure 6-16 Inlet Assembly Removal Chapter 6...
Page 114: Fan Assembly Replacement
Replacement Procedure Fan Assembly Replacement Fan Assembly Replacement Tools Required • TORX screwdriver, T10, T15, and T20 • Flat edge screwdriver Removal Procedure Refer to Figure 6-17 for this procedure. Step 1. Remove the outer cover as described in “Outer Cover Removal” on page 74 Step 2.
Page 115 Replacement Procedure Fan Assembly Replacement Figure 6-17 Fan Removal Chapter 6...
Page 116 Replacement Procedure Fan Assembly Replacement Chapter 6...
Page 117: Post-Repair Procedures
Post-Repair Procedures This chapter lists the procedures required to verify the E5053A operation after an assembly is replaced with a new one.
Page 118: Post-Repair Procedures
Post-Repair Procedures Post-Repair Procedures Post-Repair Procedures Table 7-1 Post Repair Procedures lists the required procedures that must be performed after the replacement of an assembly. These are the recommended minimum procedures to ensure that the replacement is successfully completed. Table 7-1 Post-Repair Procedures Replaced Required Adjustments...
Page 119 Post-Repair Procedures Post-Repair Procedures Table 7-1 Post-Repair Procedures Replaced Required Adjustments Verification Assembly or Part Correction Constants (CC) A6 RECEIVER Perform the following required “E5053 Test” on page 34 adjustments using “A6 REC” in Spot Adjustment of the program. Sensitivity LOCAL Phase Noise Test IF Path Adjustment...
Page 120 Post-Repair Procedures Post-Repair Procedures Table 7-1 Post-Repair Procedures Replaced Required Adjustments Verification Assembly or Part Correction Constants (CC) Mixer 0955-1487 Perform the following required LOCAL Phase Noise Sensitivity Test (Ch 1) adjustments using “RF IN” in Spot Adjustment of the program. Mixer IF Adjustment Mixer RF Adjustment Mixer 0955-1487...
Page 121: Manual Changes
This appendix contains the information required to adapt this manual to versions or configurations of the E5053A manufactured earlier than the current printing date of this manual. The information in this manual applies directly to E5053A units with the serial number that is printed on the title page of this manual.
Page 122: Manual Changes
Table A-2 Manual Changes by Firmware Version Version Make Manual Changes Keysight Technologies uses a two-part, ten-character serial number that is stamped on the serial number plate (Figure A-1). The first five characters are the serial prefix and the last five digits are the suffix.
Page 123: Power Requirement
Power Requirement...
Page 124: Power Supply And Blown Fuses
*1. Switched automatically by the E5053A in conformity to the voltage used. Verification and connection of power cable The three-wire power cable attached to the E5053A has one wire serving as a ground. Using this power cable allows the E5053A to be grounded, thereby protecting you against electrical shock from the power outlet.
Page 125 Power Requirement Power Supply and Blown Fuses Figure B-1 Power cable options Appendix B...
Page 126: Blown Fuses
Power Requirement Power Supply and Blown Fuses Blown fuses If the fuse appears to have blown during operation, this instrument may be subject to failure and must be repaired. WARNING Do NOT replace the fuse yourself; doing this may expose you to dangerous electrical shock.
Page 127: Starting The E5053A
Disconnection from supply source The power supply of the E5053A is cut off by disconnecting the plug of the power cable (on either AC outlet side or E5053A side). When it is necessary to disconnect the power supply in order to avoid shock hazards, etc., pull out the power cable plug from either the...
Page 128 Power Requirement Starting the E5053A Appendix B...
Page 129 This information is subject to change without notice. © Keysight Technologies 2005 - 2014 Edition 5, August 2014 *E5053-90130* E5053-90130 www.keysight.com...

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