Keysight E8257D/67D Service Manual
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Keysight E8257D/67D Service Manual

X-series
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Keysight X-Series
Signal Generators
E8257D/67D, E8663D
Notice: This document contains references to Agilent.
Please note that Agilent's Test and Measurement busi-
ness has become Keysight Technologies. For more in-
formation, go to www.keysight.com.
Service Guide

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Summary of Contents for Keysight E8257D/67D

  • Page 1 Keysight X-Series Signal Generators E8257D/67D, E8663D Notice: This document contains references to Agilent. Please note that Agilent’s Test and Measurement busi- ness has become Keysight Technologies. For more in- formation, go to www.keysight.com. Service Guide...
  • Page 2 OF THIS DOCUMENT OR ANY INFORMA- CAUTION notice until the indicated TION CONTAINED HEREIN. SHOULD conditions are fully understood and KEYSIGHT AND THE USER HAVE A SEP- met. ARATE WRITTEN AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT...

  • Page 3: Table Of Contents

    Contents Troubleshooting Electrostatic Discharge (ESD) Information ........1- 1 Handling of Electronic Components and ESD .
  • Page 4 Contents 521 YO Loop Unlocked ..........1- 66 625 Internal Pulse Generator Unlock .
  • Page 5 Keysight Sales and Service Offices ........
  • Page 6 Contents 1.85 mm RF Output Connector (Option 567 Only) ......2- 53 2.4 mm RF Output Connector .
  • Page 7 Contents Removal Procedure ..........3- 22 Replacement Procedure .
  • Page 8 Contents A19 Power Supply ............3- 44 Tools Required .
  • Page 9 Contents Replacement Procedure ..........3- 67 A25 67 GHz Highband Detector (Options 550 and 567) .
  • Page 10 Contents Removal Procedure ..........3- 90 Replacement Procedure .
  • Page 11 Contents A41 Flash Drive Door Assembly ..........3- 114 Tools Required .
  • Page 12 Contents...
  • Page 13 Documentation Overview Installation Guide • Safety Information • Getting Started • Operation Verification • Regulatory Information User’s Guide • Signal Generator Overview • Basic Operation • Basic Digital Operation • Optimizing Performance • Analog Modulation • Custom Arb Waveform Generator •...
  • Page 14 Service Guide • Troubleshooting • Replaceable Parts • Assembly Replacement • Post- Repair Procedures • Safety and Regulatory Information Key Reference • Key function description...

  • Page 15: Troubleshooting

    Both types, when used together, provide a significant level of ESD protection. Of the two, only the table–mat and wrist–strap combination provides adequate ESD protection when used alone. To ensure user safety, the static–safe accessories must provide at least 1 MΩ of isolation from ground. 1- 1 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 16: Handling Of Electronic Components And Esd

    When you replace an assembly a good assembly will pass self–test without any adjustments. 1. On the instrument front panel, press the hardkey. Utility 2. Select the following softkeys: E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 17: A18 Cpu Turn-On Test

    4. Inspect the pins on the A31 Motherboard connector. If the pins look good replace the A18 CPU. 5. If either of the voltages are missing, refer to “Power Supply Troubleshooting” on page 1- E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 18: Checking The A18 Cpu Voltages

    Error Messages If error messages are reported after the turn–on check is completed, refer to the Error Messages list, located on the E8257D/67D PSG Signal Generator Documentation Set CD (part number E8251–90351) for details. E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 19: Cpu Data Backup

    Take your time to be sure that you record each license key correctly. 2. Backup the calibration data from the CPU to the mother board: • Execute the SCPI command: :DIAG:FILE:BACK. 3. Follow the instructions from Chapter 3, Assembly Replacement, to replace the CPU board. E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 20: Self-Test Failures And Related Troubleshooting

    412 HET Band Test A9 YIG Driver “Self–Tests 6xx: A9 YIG Driver Self–Test Errors” on page 1- 37 600 Post Regulator 601 DACs 602 PLL Interface 603 FM Driver 604 Sweep DACs 605 Sweep Lock E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 21 “Self–Tests 12xx: A26 MID Self–Test Errors (E8267D)” on page 1- 50 1200 Power Supply 1201 Mod Filter 1202 20 GHz Doubler 1203 40 GHz Doubler (Options 532 & 544) 1204 RF Path 1205 LB Pulse Mod 1206 20 GHz IQ Modulator E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 22 2205 RF Path Test 2206 Het Band Test A38 Lowband Filter “Self–Tests 24xx: A38 Lowband Filter Self–Test Errors” on page 1- 59 2400 Power Supply Test 2401 RF Path Test 2402 Lowband Amp/Filter Power Supply E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 23 “Self–Tests 28xx: A8 Vector Output Self- Test Errors” on page 1- 63 2800 Power Supply Tests 2801 Prelevel Loop Test 2802 ALC Modulator Test 2803 Pulse Modulator Test 2804 Clamp Detector Test 2805 Bias Switch Test 2806 Switched Filters Test 2807 DAC Functionality Test E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 24: Troubleshooting Assembly-Level Problems

    The inverter also converts the 5.2 Vdc to approximately a 160 Vrms, 40 kHz signal to drive the LCD. Display Controls Contrast There are two contrast hardkeys below the A2 Display. The left up arrow key increases the contrast while the right down arrow key decreases the contrast. 1-10 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 25 P11−9, 10, 12, 13, 15, 16, 18, 19, 21, 22, 24, 25, 27, 28, 30, 31, 33, Refer to Figure 1- 34, 36, 37, 39, 40 If >21V check the power supplies. If the power supplies are good, replace the motherboard. 1-11 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 26 J9−7 VLCD approximately 21 Vdc J9−4 LCD_ENABLE_H >3 Vdc J9−5 5.2 Vdc J9−1, 2, 3, 8 to 15 Refer Figure 1- 1 on page 12. If these signals are good, replace the LCD. 1-12 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 27 5. If both signals are correct, press the faulty hardkey or softkey while monitoring the KEYCOL or KEYROW on the oscilloscope. The KEYCOL line should pulse low; the KEYROW line should pulse high. If either line does not function properly, replace the front panel board. 1-13 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 28: Power Supply Troubleshooting

    P32–14, 29 A7 Reference P42–7 P42–6, 21 P42–20, 5 P42–14, 29 A8 Output P52–7 P52–6, 21 P52–20, 5 P52–14, 29 A9 YIG Driver P112–6 P112–5, 30 P112–15, 16, P112–17, 18, P112–3, 28 1-14 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 29 59, 123, 124 126, 127, 128 A18 CPU P222–49, 50, P222–45, 46, P223–37 P223–17 47, 48, 95, 96, 97, 98 A26 Microwave Interface P201–23 P201–24 P201–30, 33, 46 A36 Quadraplier (E8257D only) J34–24 1-15 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 30 J31–4 J31–8 J31–1, 3 A36 Quadraplier J34–3 J34–17 J34–11, 12, J34–8, 9 (E8257D only) 13, 14, 15 A38 Low Band Switch P142–3 P142–26 Filter B1 Fan Fan+ P252–2 P252–2 Fan– P252–1 P252–1 1-16 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 31 A3 Power Supply J232–B1–3, C4–6, J236–B1–3, D1–3 D1–3 A5 Sampler P22–20, 5 P22–14, 29 A6 Frac N P32–20, 5 P32–14, 29 A7 Reference P42–20, 5 P42–14, 29 A8 Lowband Output P52–20, 5 P52–14, 29 1-17 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 32 B1–3, E4–6 E4–6 E4–6 J237–A4–6, B1–3, J239–A4–6, C4–6, D1–3 B1–3 A5 Sampler P22–3, 18 P22–2 A6 Frac N P32–3, 18 P32–2 A7 Reference P42–3, 18 P42–2 A8 Lowband Output P52–3, 18 P52–2 1-18 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 33 A3 Power Supply J235–E4, 5 A5 Sampler P22–4, 19 A6 Frac N P32–4, 19 A7 Reference P42–4, 19 A8 Lowband Output P52–4, 19 P112–1, 2, 26, A9 YIG Driver A10 ALC P122–1, 26 1-19 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 34 Originates on YTO Driver Originates on Microwave Interface Table 1-12 E8267D Power Supply vs. Assembly Matrix (5 of 5) Motherboard Test Points: +1.95VD1 +1.8VD_1 Baseband Generator P161–52, 118 P161–55, 56, 120–122 Voltage regulator on motherboard 1-20 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 35 P231 J1121 J1051 P192 P221 P222 P191 P182 P181 P172 P171 P201 P151 P152 P141 P142 P131 P132 P121 P122 P111 J1122 J1055 J1042 P112 J1041 J1032 J1043 J1031 J1021 P42 P32 1-21 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 36 P191 P222 P171 P161 P151 P223 P141 P192 P172 P131 P162 P152 P121 P142 P111 P132 J1056 P122 J1122 J1055 P112 J1042 J1053 J1043 J1052 J1057 J1041 J1031 J1032 J1021 P42 P32 1-22 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 37 +1.8 VD_1 10 ± 0.3 1.8 ± 0.05 +1.8 VD_2 9 ± 0.18 –5.2 ± 0.1 –5.2 8 ± 0.5 –5.2 ± 0.16 –5.2 V2 5.2 ± 0.16 –6 ± 0.12 +5.2 –6.0 1-23 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 38 3. Turn the instrument off and reinstall the assembly removed in Step 1. Remove the next assembly and see if the supply LED lights. Continue this process until the supply functions properly. 4. Replace the last assembly that you removed. 1-24 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 39 Troubleshooting Assembly–Level Problems Figure 1-4 E8257D Motherboard Power Supply LEDs DS101 DS112 DS103 DS113 DS107 DS104 +32V +15V –7V –15V +5.2V +10V DS110 DS109 DS111 DS102 DS106 DS100 DS105 +3.4VD –5.2V –6V +15VSTBY +5.2VDF 1-25 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 40 +5.2V +10V –7V –15V DS101 +15V +32V DS103 +15VSVSTBY DS106 DS105 DS110 –5.2V DS111 DS115 –6V –5.2V2 DS119 DS114 PS–FAULT DS118 +1.95VD2 +2.6VD +1.95VD1 DS109 +3.4D DS108 +5.2VD DS116 DS117 +1.8VD1 +1.8VD2 1-26 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 41 2. If the supplies are present at P112, note in the matrix where each supply is used. 3. Power down the instrument and remove one of the assemblies that is biased by the faulty supply. 1-27 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 42: Option 008/009 Troubleshooting

    7. If the green LED light still does not turn on and off or Option 008/009 is still not listed as an installed option, a. Replace the A18 CPU b. Run the required performance test for the A18 CPU, see Chapter 4, “Post–Repair Procedures.” c. Repeat steps 2 thru 4. 1-28 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 43: Self-Tests 1Xx For The A13 I/Q Multiplexer

    • Replace the A13 I/Q Multiplexer. 102 Ext In Offset DAC and Switch • Replace the A13 I/Q Multiplexer 103 Path 1 & 2 and Ext Out • Replace the A13 I/Q Multiplexer 1-29 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 44 9. Probe A31J1053 while executing self test 111, for a square wave on the center pin, 300 ms at +0.7V and 300 ms at –0.7V. • If a square wave is not present on A31J1053, replace the W131 cable. • If a square wave is present at A31J1053, replace the A8 Output board. 1-30 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 45: Self-Tests 2Xx: A5 Sampler Self-Test Errors

    2. Turn the signal generator on and check for the presence of a 1 GHz signal at the level of 0 dBm. 3. If the signal is good on the cable connector J1, replace the A5 Sampler. 1-31 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 46 8 GHz CW, the A6 Frac–N signal should be at a frequency of 593.75 MHz and at a power level of +7 dBm. 4. If the signal is good, replace the A5 Sampler, if the signal is bad go to the A6 Frac–N troubleshooting procedure. 1-32 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 47: Self-Tests 3Xx: A7 Reference (Standard) Self-Test Errors (For Instruments With Serial Prefixes < Us4805/My4805)

    1. Check and remove any connection to the 10 MHz external reference on the rear panel. 2. If the signal generator continues to fail self–test, replace the A7 Reference. 301 Tuning Voltage 1. Replace the A7 Reference. 1-33 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 48: Self-Tests 4Xx: A8 Output Self-Test Errors (E8267D Only)

    The signal at J4 should be at 3 GHz and ≥0 dBm. • If the signal is not present, or is not at the correct level, replace the A6 Frac–N. • If the signal is present, replace the A8 Output. 1-34 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 49 • If the signal is bad, replace the A31 Motherboard. 405 Gain Adjustment Test • Replace the A8 Output. 406 Prelevel Bypass Test • Replace the A8 Output. 407 Switched Filters Test • Replace the A8 Output. 1-35 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 50 There should be a 1 GHz signal, that is >−30 dBm. • If the signal is good, replace the A9 Output. • If the signal is not good, run the A7 self–tests. 1-36 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 51: Self-Tests 6Xx: A9 Yig Driver Self-Test Errors

    P112–11, 12, 13, 14, 38 –6.86 –7.14 Main Supply +5.2 Digital high P111–64, 65, 129, 130 +5.04 +5.36 Main Supply +3.4 Digital Low P111–60, 61, 62, 63, 125, 126, 127, 128 +3.29 +3.5 Main Supply 1-37 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 52 Sweep: Freq 1 MΩ Sweep Time: Auto Sweep Repeat: Continuous A positive and negative going signal should be present. • If the signal is present at J9, replace the A9 YIG Driver. 1-38 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 53: Self-Tests 7Xx: A6 Frac-N Self-Test Errors

    +9.18 YIG Driver –5.2 P32–4,19 –5.1 –5.3 YIG Driver –6 P32–3, 18 –5.88 –6.12 YIG Driver 700 Ref Voltage • Replace the A6 Frac–N. 701 Loop Gain • Replace the A6 Frac–N. 1-39 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 54 If the signal out the A29 20 GHz Doubler is good, replace the cable. • If the signal out the A29 20 GHz Doubler is bad, replace the A29 20 GHz Doubler. 1-40 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 55: Self-Tests 7Xx: A45 Frac-N Self-Test Errors (Option Uny)

    Disconnect the cable W155 from the Frac- N A45J4 and connect to a signal analyzer. Check for 1 GHz and its power, aproximately 0 dBm. • If the signal is present, replace A45. • If the signal is not present, replace W155 or A46. 722 Open Loop VCO Test • Replace the A45. 1-41 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 56: Self-Tests 9Xx: A10 Alc Self-Test Errors

    Main Supply –15 P122–3 –14.55 –15.45 Main Supply +5.2 P122–2, 27 +5.04 +5.37 Main Supply –5.2 P122–1, 26 +5.30 +5.10 YIG Driver +5.2 Digital high P121–64, 65, 129, 130 +5.04 +5.36 Main Supply 1-42 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 57 • If the signal is present, replace the A10 ALC. 904 Scalar Mod Pulse • Replace the A10 ALC. 905 ALC Mod Test • Replace the A10 ALC. 906 Scan Mod Test • Replace the A10 ALC. 1-43 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 58: Self-Tests 10Xx: A7 Reference (Option Unr/Unx And Instruments With Serial Prefixes >= Us4805/My4805) Self-Test Errors

    The following voltages should be observed: • Pin 1 ground • Pin 2 +12V • Pin 3 ground • Pin 4 a positive DC voltage around +3.8V should be present (oven cold raw voltage may vary). 1-44 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 59: Self-Tests 11Xx: A18 Cpu Self-Test Errors

    If the signal is now present, replace the A7 board. d. If the signal is still missing, replace the A31 mother board. 1002 1 GHz Test • Replace the A7 Reference. Self–Tests 11xx: A18 CPU Self–Test Errors 1-45 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 60: Self-Tests 12Xx: A26 Mid Self-Test Errors (E8257D)

    6. If the voltage is present on P112 but not present on P223, replace the A31 Motherboard. 7. If the voltages are not present on P112, troubleshoot the A9 YIG Driver. Self–Tests 12xx: A26 MID Self–Test Errors (E8257D) 1-46 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 61 • If the power level in both paths is good, replace the A30 Modulation Filter. • If the power level in either path is bad, troubleshoot that path. 1-47 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 62 1. Disconnect the cable from J5 of A10 ALC, and connect the cable to a DVM (this is the lowband detector output). 2. On the signal generator, set the following: Center Frequency: 3 GHz 1-48 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 63 1. If the signal is bad, troubleshoot the RF path. 2. If the signal is good, replace the A36 Quadraplier. 4. If self–test 20–40 GHz Prelevel, index 26, fails: a. On the signal generator, set the following: Center Frequency: 45GHz 1-49 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 64: Self-Tests 12Xx: A26 Mid Self-Test Errors (E8267D)

    +5.2 Digital high P201–33 P201–23 +5.04 +5.36 Main Supply +3.4 Digital Low P201–34 P201–24 +3.3 +3.5 Main Supply 1200 Power Supply 1. Press and highlight Self Test 1200. Press View Test Info View Details 1-50 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 65 This test checks for a dc voltage on the A10 ALC from the A23 Lowband Coupler/Detector and A24 Highband Coupler and A25 Highband Detector. 1. Connect a spectrum analyzer to the RF output of the signal generator. 1-51 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 66 3. The voltage measured by the DVM should be approximately −1.8 V. If it is not, use an oscilloscope to view P131–6 of the A31 Motherboard (this is the pulse signal out of the A11 Pulse/Analog Modulation Generator). Change the pulse period to 1 ms and the pulse width to 500 μs. 1-52 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 67 The IF signal will range in frequency from 6.667 GHz to 9.50 GHz with an amplitude of >5 dBm. • If the signal is bad, troubleshoot the A35 RF path. • If the signal is good, reconnect A35–J24. 1-53 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 68: Self-Tests 13Xx: A11 Analog/Pulse Modulation Generator Self-Test Errors

    P132–1, 26 –5.3 –5.1 YIG Driver +5.2 Digital high P131–64, 65, 129, 130 +5.04 +5.36 Main Supply +3.4 Digital Low P131–60, 61, 62, 63, +3.29 +3.5 Main Supply 125, 126, 127, 128 1-54 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 69 • Replace A11 Pulse/Analog Modulation Generator. 1314 External 1 • Replace A11 Pulse/Analog Modulation Generator. 1315 External 2 • Replace A11 Pulse/Analog Modulation Generator. 1316 AM Path Loss • Replace A11 Pulse/Analog Modulation Generator. 1-55 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 70: Self-Tests 16Xx For The A14 Baseband Generator (Option 601/602)

    • If the +3.4 VD or +2.6 VD supply voltages are bad on the A31 Motherboard, check the origin of the supply. — If the supply voltage is good at the origin, replace the A31 Motherboard. — If the supply voltage is bad at the origin, troubleshoot the A19 Power Supply. 1-56 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 71 — If the –7 V supply voltage is bad at the A19 Power Supply, troubleshoot the A19 Power supply. 1609 IQ DAC Output • Replace the A14 Baseband Generator 1610 PLL Test • Replace the A14 Baseband Generator 1-57 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 72: Self-Tests 22Xx: A8 Output Self-Test Errors

    2. Set the signal generator to 3 GHz CW. 3. Connect a spectrum analyzer to the A6 Frac–N RF output at J4 of the A8 Output. The signal at J4 should be at 3 GHz and ≥0 dBm. 1-58 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 73: Self-Tests 24Xx: A38 Lowband Filter Self-Test Errors

    Supply Voltage Connector Pins Minimum Value Maximum Value Origin (Vdc) (Vdc) (Vdc) P142–4 +31.04 +32.96 Main Supply P142–28 +14.55 +15.45 Main Supply –15 P142–3 –15.45 –14.55 Main Supply 1-59 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 74: Self-Tests 25Xx: A43 Amp Filter Self-Test Errors

    • If the signal is troubleshoot the RF path. 2402 Lowband Amp/Filter Power Supply • Replace the A38 Lowband Filter. 2403 RF Path • Replace the A38 Lowband Filter. Self–Tests 25xx: A43 Amp Filter Self–Test Errors 1-60 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 75 • Replace the A43 Amp Filter. 2503 Pulse Modulator Test • Replace the A43 Amp Filter. 2504 Step Attenuator Test • Replace the A43 Amp Filter. 2505 Divider On/Off Test • Replace the A43 Amp Filter. 1-61 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 76: Self-Tests 26Xx: A8 Output Self-Test Errors

    3. Connect a spectrum analyzer to the A6 Frac–N RF output at J4 of the A8 Output. The signal at J4 should be at 3 GHz and ≥0 dBm. • If the signal is not present or at the correct level, replace the Frac–N. 1-62 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 77: Self-Tests 27Xx: A46 Offset Loop Self-Test Errors (Option Uny)

    2705 YO Loop Detector Test • Replace the A46. Self–Tests 28xx: A8 Vector Output Self-Test Errors 2800 Power Supply Test • Replace the A8. 2801 Prelevel Loop Test • Replace the A8. 1-63 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 78: Troubleshooting Unlocks

    1. Start narrowing the sweep frequency range and increasing the sweep time. 2. If making the sweep adjustments resolves the error, replace the A28 YIG Oscillator. 3. If the A28 YIG Oscillator does not resolve the error, replace the A9 YIG Driver. 1-64 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 79: 512 A7 Reference Unlock

    A31 Motherboard in the A5 Sampler slot. There should be a 1 GHz signal >0 dBm. 3. If the 1 GHz signal is present, replace the A5 Sampler. 4. If the 1 GHz signal is not present, replace the A7 Reference. 1-65 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 80: 521 Yo Loop Unlocked

    2. Measure pin P131–91. The waveform is not a sine wave, but more like a distorted pulse waveform >2 V 3. If the waveform is present, replace the A11 Pulse/Analog Modulation Generator. 4. If the signal is not present, replace the A7 Reference. 1-66 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 81: Troubleshooting Unlevels

    Table 1- 16. Repeat step b above. Table 1-16 Signal Generator Spectrum Analyzer Start Stop Start Stop 3.2 GHz 20 GHz 3.15 GHz 20 GHz 20 GHz Max. Freq. 20 GHz Max. Freq. 1-67 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 82 >3.2 GHz to 20 GHz >20 GHz to 31.8 GHz >31.8 GHz to 40 GHz >40 GHz to 44 GHz Always check data sheet for updates to specifications With filters switched out 1-68 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 83 • If the dc level is bad, replace the A23 Lowband Coupler/Detector. • If the signal is good, replace the A10 ALC. Table 1-20 Option Expected Power Level Standard 2.3 dBm ±.5 dBm 4.5 dBm ±.6 dBm 6.5 dBm ±1 dBm 1-69 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 84 +7 dBm or +3 dBm, depending on options. If the power can not be set to +7 dBm or +3 dBm, troubleshoot the RF path. • Remove the cable going to J6 on the A30 Modulation Filter and measure the voltage on the center pin. The voltage should be approximately +5.4 Vdc. 1-70 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 85 If the signal generator is unleveled at all frequencies, the problem is most likely the A10 ALC. a. Checking the A10 ALC: • Run a complete self–test and troubleshoot the reported failure. 1-71 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 86: Troubleshooting Adjustment Problems

    A10 ALC RF Path ALC Modulator Calibration A30 Modulation Filter A8 Output Attenuator Calibration–Lowband and Highband Power RF Path Attenuator Calibration–Highband and High Power RF Path Attenuator Calibration–Lowband and Low Power RF Path 1-72 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 87 AT1 Attenuator A24/25 67 GHz Coupler/Detector Upconverter Gain Adjust Calibration A37 Upconverter A35 3–20 GHz IQ Modulator Modulator Bias DAC Sensitivity A10 ALC A8 Output A30 Modulation Filter A36 Quadraplier A37 Upconverter 1-73 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 88: Troubleshooting Adc Adjustment Failures

    Perform FM adjustments. If still failing check A11 Pulse/Analog Modulation Generator and A6 Frac–N. External Phase Modulation Frequency Response Perform FM adjustments. If still failing check A11 Pulse/Analog Modulation Generator and A6 Frac–N. 1-74 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 89: Troubleshooting The Rf Path

    RF Block Diagram, then measure the input and output power level for each device in the path until the defective part is located. 1-75 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 90: Alc And Rf Problems

    Always turn the signal generator off before installing any assembly. 7. If power levels look good through the path in ALC Off mode, the problem is most likely in the ALC loop. Go to troubleshooting the ALC loop. 1-76 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 91: Troubleshooting Pulse Modulation

    4. If Option 1E1 is listed, turn the signal generator off and remove W36 from J13 on the A26 MID. 5. Turn the signal generator on and probe the following pins on J13. 1-77 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 92: Troubleshooting Harmonic Spurious

    The dBc value is the difference between the fundamental peak power level and the harmonic frequency power level. Table 1-27 Harmonic Specifications Harmonic Specifications < 10 MHz –28 dBc 1-78 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 93: 20 Ghz Models

    A29 20 GHz Doubler J2. 3. Set the spectrum analyzer to the harmonic frequency, press marker peak search and then delta marker. 4. Set the signal generator to the fundamental frequency of the harmonic. 1-79 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 94: 32 Ghz And 44 Ghz Models Only

    A27 40 GHz Doubler output (W30). Connect the spectrum analyzer to the A27 40 GHz Doubler J2. 8. Set the signal generator and spectrum analyzer to the harmonic frequency. Press marker peak search and delta marker. 9. Set the signal generator to the fundamental frequency of the harmonic. 1-80 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 95: 50 And 67 Ghz Models Only

    Frac–N Feedthrough These spurs are generated by the Frac–N frequency coupling onto the low–band signal as it leaves the A6 Frac–N. The spurs then appear at the Frac–N frequency at the RF output. 1-81 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 96: Troubleshooting Option Unr/Unx/Uny And Instruments With Serial Prefixes >= Us4805/My4805 Phase Noise

    <100 Hz. In non–Option UNR/UNX and instruments with serial prefixes > US4805/MY4805, the most likely assembly for <100 Hz offset is the A7 Reference. 1-82 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 97: Overall Description

    The signal generator accepts inputs through the front panel hardkeys and the display softkeys, and provides outputs on the front panel display, and through the RF output connector. Depending on the model, features, and options, the 1-83 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 98: Frequency Generation

    Lowband path, and part of highband path 250 MHz 4 to 8 GHz Oscillator output is divided by 2/4/8/16 on the A6 Frac–N assembly. 3.2 GHz 1-84 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 99 1000 and 750 MHz) with a 1 GHz LO from the A7 Reference. In vector models, the A8 Output also contains the I/Q modulation circuit. Option UNW (improved pulse performance below 3.2 GHz) adds a fast pulse modulator after the A8 Output. 1-85 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 100 • adjusts the ALC leveling reference for improved power flatness during sweep The A6 Frac–N contains the phase lock circuitry required to monitor and maintain phase lock during sweep. It also provides a correction frequency voltage to the A9 YIG Driver. 1-86 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 101 Option 601 or 602, the internal A14 Baseband Generator may be used as the source of the I/Q modulation. The A13 I/Q Multiplexer also routes the baseband I and Q, along with their inverses, to the rear panel. 1-87 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 102 Option 601 provides 8 Msamples of playback memory, and Option 602 provides 64 Msamples of playback memory. The A14 Baseband Generator is also capable of generating two–tone or up to 64 multitones within its RF modulation bandwidth. 1-88 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 103 Synthesis Loop A9 YIG Driver Microwave / RF Path Trigger & Timing FM Driver A26 Microwave Interface Deck Control Phase Lock FM Coil 250 KHz to 20 GHz Interface (Opt 520) Sweep A28 YIG 3.2 to 10 GHz 3.2 to 20 GHz A29 20 GHz Doubler A30 Modulator Filter A24 Coupler...
  • Page 104 Synthesis Loop A9 YIG Driver Microwave / RF Path Trigger & Timing FM Driver A26 Microwave Interface Deck Control Phase Lock Coil A27 3-40 GHz Interface A37 20 - 44 GHz Upconverter 3.2 to Doubler Sweep 3.2 to 10 GHz (models >...

  • Page 105: Reference/Synthesis Loop Description

    The A18 CPU sets the A9 YIG Driver Sweep DAC for a +3.2V output, which results in a YIG oscillator output of approximately 3.2 GHz. To sweep the instrument from 3.2 to 10 GHz, a programmable counter on the A9 YIG Driver increments the Sweep DAC’s output to +10V. 1-93 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 106: A5 Sampler (Cw Mode Only)

    A7 Reference contributes to phase noise. There is no easy way to identify if a phase noise problem in the overlapping area is generated by the A6 Frac–N or A7 Reference, other than to try new assemblies. 1-94 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 107: A7 Reference

    10 MHz signal from the A7 Reference maintains the DDS frequency accuracy, and its output frequency clocks the programmable counter at its output rate. • a programmable counter that can count either up or down; its output increments the sweep DAC. • a sweep DAC 1-95 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 108: A28 Yig Oscillator (Yo)

    250 MHz and 2 GHz, with reduced power between 250 MHz and 2 GHz. In IQ mode, filters are on between 10 MHz and 2 GHz, with reduced power between 10 MHz and 2 GHz, and degrade IQ bandwidth. 1-96 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 109 A9 YIG Driver A6 Frac-N (Fine Tune) A29 20 GHz Doubler Lowband Frec-N to / from Divide Sweep Start / Stop Retrace (Rear Pnl) 3-10 H_FM_INV MOD_CONTROL Z-axis / Blanking (Rear Pnl) Sweep Control 3.2-10GHz Stop Sweep (Rear Pnl) to A6 Frac-N from Sweep Level (to A10) 3.2 - 10 GHz...

  • Page 110: Rf Path Description (Frequency Generation, Level Control, And Modulation)

    • an A19 Power Supply and A31 Motherboard that can handle increased power requirements Instruments with serial prefix ≥ 4829. Instruments with serial prefix < 4829. Instruments with serial prefix ≥ 4829. 1-99 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 111: A6 Frac-N

    Output to the UNW hardware, and the pulse diode on the A8 Output is biased on, allowing the RF signal to pass through. The pulse shaper circuitry on the A11 Pulse Modulator needs to be set using a license key to provide narrower pulse widths. 1-100 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 112: A23 Lowband Coupler/Detector, A24 Highband Coupler, And A25 High Band Detector

    A36 Quadraplier. In these instruments two A30 Modulator outputs go to the A36 Quadraplier. One of the A30 Modulator outputs is connected to the A36 Quadraplier bypass circuit and the other to the doubler circuit. 1-101 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 113 Instruments with Option 015 route the rear panel wideband IQ inputs directly to the IQ modulator. Swap the I and Q signals when using the rear panel wideband IQ inputs at RF > 20 GHz and < 28.5 GHz. 1-102 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 114 The AM signal from the A11 Pulse/Analog Modulation Generator is routed to the A10 ALC, where it is summed with the ALC reference voltage where it is used to drive the A30 Modulation Filter, A36 Quadraplier, A37 44 GHz Upconverter, and A8 Output ALC diodes. 1-103 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 115: A6 Frac–N

    (through additional gain control circuitry), and/or simultaneously to the A8 Output and A35 I/Q Modulator. The EXT IN I and EXT IN Q signals enter the A13 I/Q Multiplexer, and can be switched into a 50 or 600 ohm input impedance. 1-104 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 116: A29 20 Ghz Doubler

    J1 to J3 and J4 Loss < 18 A35 3–20 GHz I/Q Mod. Bypass mode, J5 to J1 ✓ 3.2 to 12.8 GHz Gain > 0 12.8 to 20 GHz Loss < 2 1-105 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 117: Approximate Device Gains And Losses

    20 GHz, J1 to J4, J1@ <–10.5 Gain >21 >21 40 GHz, J1 to J4, J1@ <–8.5 >18 44 GHz, J1 to J4, J1@ <–5 ✓ ✓ A38 Low Band Switch Filter Loss <8.5 1-106 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 118 A26 Micro Interface Deck A9 YIG Driver MODF_PLS_ ENB_L DBL40_LPF ATTEN to / from DBL20_AMP_ON_H Sweep Start / Stop Retrace (Rear Pnl) DBL40_BIAS Models up to 40 GHz. DBL40_PATH Z-axis / Blanking (Rear Pnl) DBL20_PATH Sweep Control MODF_PATH Stop Sweep (Rear Pnl) MODF_AMP_ON_H See next sheet for DBL40_AMP...
  • Page 119 A26 Micro Interface Deck QPLR_40_70_GAIN_ADJ_DAC QPLR_PATH_20_40_H QPLR_20_40_BIAS_EN_H MODF_AMP_ON_H QPLR_20_40_DET_H QPLR_PULSE_EN_L QPLR_40_70_DET_H QPLR_PULSE_BELOW_40_L MODF_PLS_ QPLR_20_26_5_FIL_L ENB_L QPLR_FLB QPLR_FIL_55_70_L QPLR_40_70_BIAS_EN_H ATTEN MODF_PATH A36 Quadraplier 40-51 GHz Gain Pulse 40-70 GHz 20-35 956x4 20-40 GHz 51-70 GHz A30 Modulator A24 Coupler Filter 10-20 Pulse Option 1E1 A25 Detector...
  • Page 120 A30 Mod/Filter uckt Option 521 3-20 GHz 0.01-20 GHz Power Amp uckt ** A28 YTO 3-10 GHz A29 20 GHz Doubler uckt Pulse A24 2-20 GHz 5/10/40/20/40 0-20 GHz ALC Det 3-10 output Optional Attenuator Opt 1EW only 0-3.2 GHz ** Not Necessary for E8663B 0-3.2 GHz Sampler...
  • Page 121 A45 FRAC-N BOARD PRESTO FM Input from MOD 2-4 GHz 1-2 GHz A46 OFFSET BOARD ESOT BOARD (A11) FN Loop YOL_REF Mode A Mode A A9 YIG 50 MHz DRIVER Mode B 62.5 to BOARD Mode B 125 MHz YOL_IF YIG Loop 3200 to 10000 MHz Step Generator...
  • Page 122 EXT_OUT_I_GAIN EXT_OUT_I_OFFSET_DAC A13 I/Q Mux EXT_OUT_Q_GAIN EXT_OUT_Q_OFFSET_DAC EXT_OUT_SEL A Bus I OUT Q OUT A26 Micro Interface Deck I and Q A9 YIG Driver MODF_PLS_ I and Q Σ I INPUT I and Q ENB_L Σ ATTEN A Bus to / from SUM_SW1 A Bus Sweep Start / Stop...
  • Page 123 A26 Micro Interface Deck MODF_PLS_ENB_L MODF_PATH MODF_AMP_ON_H UPC_BYPASS_L UPC_LPF_SEL DBL40_PATH DBL40_BIAS UPC_AMP_ON_H DBL40_AMP DBL40_ LPF UPC_BPF_SEL UPC_PLS_ENB_L ATTEN DBL40_LPF to A35 I/Q Modulator A37 20 - 44 GHz Upconverter A27 40 GHz Doubler 6 Filters 20-44 GHz 20-26 20-40 0-40 A24 Coupler Pulse Doubler...

  • Page 124: Vector Low Band Rf Path

    A30 Mod/Filter uckt 3-20 GHz A35 3-20 GHz IQ Modulator uckt A28 YTO Analog Bypass A29 20 GHz Doubler uckt 3-10 GHz Pulse 2-20 GHz 5/10/40/20/40 0-20 GHz ALC Det 3-10 Corax output Optional Attenuator Gain Adj 0-3.2 GHz Wideband Narrowband with Fireblade 0-3.2 GHz...

  • Page 125: Self–Test Overview

    Select/Deselect Test • Run Highlighted Tests • Select/Deselect All • Run Selected Tests • View Details • When View Details is selected, the highlighted test’s measured value, lower, and upper limits are displayed. 1-121 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 126: Contacting Agilent Technologies

    Describe the problem: What action has been taken: If you are having a problem with performance tests or adjustments Software revision: Name of adjustment or performance test: Reported software message: Describe the problem: 1-122 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 127 Troubleshooting Contacting Agilent Technologies If you are having a problem with an application Describe what you want to do: Describe the problem: 1-123 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 128: Keysight Sales And Service Offices

    Assistance with test and measurements needs, and information on finding a local Agilent office is available on the Web at: http://www.agilent.com/find/assist You can also purchase E8257D/67D PSG accessories or documentation items on the web at: http://www.agilent.com/find/psg If you do not have access to the Internet, please contact your field engineer.

  • Page 129: Ordering Information

    Frequency, Hardware, and Personality Options This section lists the options available with an Agilent E8257D/67D, E8663D PSG signal generator. Frequency Options 100 kHz to 3.2 GHz frequency range (E8663D Only) 100 kHz to 9 GHz frequency range (E8663D Only)
  • Page 130 Adds wideband (differential) external I/Q input ports (1GHz) (E8267D Only) 601 (Discontinued) Adds internal baseband generator with 8 Mega sample memory (E8267D Only) Adds internal baseband generator with 64 Mega sample memory (E8267D Only) E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 131: Assemblies

    2- 13 2- 13 (E8257D instruments with serial prefixes < US4928/MY4928) A12 Pulse Modulator Board (Instruments with E8251–63634 2- 12 Option UNW and HAR) (E8257D instruments with 2- 13 serial prefixes < US4928/MY4928) E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 132 (Options 532 and 544) A25 67 GHz Highband Detector 2- 11 08474- 60026 (Options 550 and 567) 2- 14 A25B Highband Detector Bias Board 2- 13 E8251- 63635 E8251- 63635 2- 15 2- 14 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 133 A39 Directional Sweep Coupler (Options 532 and 544 0955–0148 2- 13 2- 16 only) A40 PCA, IDE/Compact Flash Drive E8251–63640 2- 10 E8251–63640 2- 12 E8257D/E8663D: instruments with serial prefixes > US4928/MY4928 E8267D: instruments with serial prefixes > US4829/MY4829 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 134 - Send SERV:REPL:FRAC command if E8251-60647 rev. is A0100 or A0101. Requires firmware version C.04.17 or greater. Requires firmware version C.04.53 or greater. Requires the temperature compensation resistor pack on A25B to be installed. Requires firmware version C.05.31 or greater. E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 135: Assemblies From The Inside Front Panel View

    Assemblies from the Inside Front Panel View Figure 2-1 Assemblies from the Inside Front Panel View for with serial prefixes < US/MY5XXX3XXX Applicable if the A2 does not have the most current LCD. E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 136 Replaceable Parts Assemblies and Hardware Options Figure 2-2 Assemblies from the Inside Front Panel View for with serial prefixes > US/MY5XXX3XXX E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 137: Assemblies From A Top View (E8257D Option 520/540 And E8663D)

    Assemblies and Hardware Options Figure 2-3 Assemblies from a Top View (E8257D Option 520/540 and E8663D) (Option UNR/UNX/UNY) (instruments with serial prefixes > US4805/MY4805) Option 540 A25B (A45) (A46) (Option 1E1) (Option UNY) (Option UNY) E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 138 Replaceable Parts Assemblies and Hardware Options Figure 2-4 Assemblies from a Top View (E8257D Option 521) (under A40) (Option UNX/UNY) A25B (A46) (A45) (Option 1E1) (Option UNY) (Option UNY) 2-10 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 139 Replaceable Parts Assemblies and Hardware Options Figure 2-5 Assemblies from a Top View (E8257D Option 550/567) (Option UNR/UNX/UNY) (instruments with serial prefixes > US4805/MY4805) A25B (A46) (A45) (Option UNY) (Option UNY) (Option 1E1) 2-11 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 140 Replaceable Parts Assemblies and Hardware Options Figure 2-6 Assemblies from a Top View (E8267D Option 520) (Option UNR/UNX/UNY) (instruments with serial prefixes > US4805/MY4805) A25B (A45) (A46) p_dig_top (Option UNY) (Option UNY) 2-12 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 141 Figure 2-7 Assemblies from a Top View (E8267D Option 532/544) (Option 005 – Discontinued) (Option UNR/UNX/UNY) (instruments with serial prefixes > US4805/MY4805) (under the cover) A25B (Options 532 & 544 Only) (A45) (A46) (Option UNY) (Option UNY) 2-13 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 142: Assemblies From A Microcircuit Deck View (E8257D Option 520/540 And E8663D)

    Assemblies and Hardware Options Figure 2-8 Assemblies from a Microcircuit Deck View (E8257D Option 520/540 and E8663D) A25B (Option 540) Figure 2-9 Assemblies from a Microcircuit Deck View (E8257D Option 521) A25B 2-14 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 143 Replaceable Parts Assemblies and Hardware Options Figure 2-10 Assemblies from a Microcircuit Deck View (E8257D Option 550/567) A25B Figure 2-11 Assemblies from a Microcircuit Deck View (E8267D Option 520) A25B 2-15 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 144 Replaceable Parts Assemblies and Hardware Options Figure 2-12 Assemblies from a Microcircuit Deck View (E8267D Option 532/544) A25B 2-16 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 145: Assemblies From A Bottom View (E8257D And E8663D)

    Replaceable Parts Assemblies and Hardware Options Figure 2-13 Assemblies from a Bottom View (E8257D and E8663D) (Option 521 only) 2-17 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 146 Replaceable Parts Assemblies and Hardware Options Figure 2-14 Assemblies from a Bottom View (E8267D) 2-18 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 147: A18Bt1 Lithium Battery

    Replaceable Parts Assemblies and Hardware Options A18BT1 Lithium Battery Figure 2-15 A18BT1 Lithium Battery A18BT1 2-19 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 148 8121–0614 A9J3 A31J1031 8121–0624 A9J4 A31J1021 8121–0624 A9J5 A28J1 8121–0608 A10J201 A30J6 8121–0624 A10J5 A23J104 8121–0627 A10J3 A25 40 GHz Highband Detector 8121–0900 A11J204 A12 Pulse Modulator Board 8121–0623 A11J205 A30J7 8121–0626 2-20 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 149 A29J4 A31 Motherboard (Sampler) E8251–20343 A29J3 A31 Motherboard (Frac–N) E8251–20224 A29J2 A30J1 E8251–20017 (E8257D) Semi–Rigid Cable, A31 Motherboard A31 Motherboard (Reference) E8251–20226 (Sampler) Semi–Rigid Cable, A31 Motherboard A31 Motherboard (Output) E8251–20226 (Frac–N) 2-21 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 150 8121- 0626 (Std. E8267D or with Option 015) A13J6 A35J7 8121- 0624 (E8267D) A13J5 A35J6 8121- 0624 (E8267D) A14J13 A17P2 8121- 0920 (E8267D) A14J800 Rear Panel (BASEBAND GEN REF IN) 8121- 0901 (E8267D) 2-22 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 151 Option 1E1) A27J2 A24 Highband E8251- 20070 (Option 1EM) Coupler input Semi- Rigid Cable, A24 40 GHz AT1 115 dB Mechanical Attenuator E8251- 20071 (Option 1EM) Highband Coupler output (Option 1E1) input 2-23 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 152 A37J4 (RF out) Semi- Rigid Cable, E8251- 20310 (Options 532 & 544) A24 50 GHz Highband Coupler (in) W103 A30J2 A37J3 E8251- 20219 (Options 532 & 544) W104 A27J1 A35J3 E8251- 20215 (E8267D) 2-24 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 153 AT1 115 dB Mechanical Attenuator E8251- 20026 (E8257D) (IN) (Option 520) A10J303 Rear Panel (ALC HOLD) 0625- 4806 W122 (E8267D) A13J15 Rear Panel (Wideband Q In (+)) 8121- 1667 W123 (E8267D with Option H16/016) 2-25 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 154 For instruments with serial prefixes ≥ US4829/MY4829. Table 2-2 Reference Designator Input Output Part Number Ribbon Cable, A1 Keyboard A31P13 (part of A1) A1W1 2-26 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 155 A9J5 A28J1 8121–0608 A10J201 A30J6 8121–0624 A10J5 A23J104 8121–0627 A10J3 A25 20/40/50/67 GHz Highband N8210- 60201 Detector A11J204 A12 Pulse Modulator Board 8121–0623 A11J205 A30J7 8121–0626 A18J1 A21J3 8121–0617 A18J2 A26J30 8121–0619 2-27 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 156 A31 Motherboard (Frac–N) E8251–20224 A29J2 A30J1 E8251–20017 (E8257D & E8663D) Semi–Rigid Cable, A31 Motherboard A31 Motherboard (Reference) E8251–20226 (Sampler) Semi–Rigid Cable, A31 Motherboard A31 Motherboard (Output) E8251–20226 (Frac–N) A31J1051 A31J1122 8121–0620 A31J1055 A31J1121 8121–0620 2-28 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 157 A35J7 8121- 0624 (E8267D) A13J5 A35J6 8121- 0624 (E8267D) A14J13 A17P2 8121- 0920 (E8267D) A14J800 Rear Panel (BASEBAND GEN REF IN) 8121- 0901 (E8267D) A18P2 A34 Internal Hard Drive 8121- 0685 (E8267D) 2-29 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 158 Semi- Rigid Cable, A24 40 GHz AT1 115 dB Mechanical Attenuator E8251- 20071 (Option 1EM) Highband Coupler output (input) Semi- Rigid Cable, AT1 115 dB 2.4mm RF Output connector (RF E8251- 20072 (Option 1EM) Mechanical Attenuator OUT) 2-30 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 159 (Options 532 & 544) W100 A27J2 (RF out) A37J5 (LO in) E8251- 20216 (E8267D) (Options 532, 540, & 544) W101 A39 Directional Sweep Coupler (input) E8251- 20331 (E8267D) (Options 532 & 544) 2-31 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 160 E8251- 20333 (with Option 1EH & Filter) (OUT) UNW) W120 A31 Motherboard (LB Filter Output) A23 Lowband Coupler/Detector E8251- 20342 (with Option 1EH) W137 1 GHz Out (Rear Panel) 8120- 5068 W121 2-32 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 161 Cable Assembly, A42J9 A31P242 E8251- 60850 A18P2 A40 Compact Flash PCA 8182- 1807 W136 W137 Semi- Rigid, A31 Motherboard W121 E8251- 20384 (Reference) W138 Semi- Rigid, A43 Lowband Amp Filter W140 E8251- 20489 2-33 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 162 For instruments with serial prefixes < US4722/MY4722 you must replace all matched cables, W127 thru W130, the first time. For instruments with serial prefixes < US4722/MY4722 you must replace the two matched cables, W131 and W132, the first time. For instruments with serial prefixes ≥ US4829/MY4829. 2-34 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 163: Hardware

    “Type- N RF Output Connector (Option 1ED Models Only)” on page 2- 56 • “Main Chassis with Inside Cover and Right- Side Support Wall” on page 2- 57 • “Outer and Inner Instrument Covers and Associated Parts” on page 2- 58 2-35 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 164: Front Panel View

    Nut- Hex 15/32- 32 2950- 0035 E8257D & E8663D E8267D Washer- Wavy .490ID 3050- 1919 E8257D & E8663D E8267D Washer- Shoulder 00310- 48801 Bottom Overlay (Option UNM) E8251- 80003 Bottom Overlay (Option 1EM) E8251- 80203 2-36 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 165 Replaceable Parts Assemblies and Hardware Options Figure 2-16 Front Panel View 2-37 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 166: Disassembled Front Panel View

    Screw- Machine M3.0 x 08 FL- TX 0515- 1227 Cable Retainer Clip 1400- 1439 Sub Panel E8251- 00009 Screw- Machine M3.0 x 06 CW- PN- TX 0515- 0372 Screw- Machine M3.0 x 08 FL- TX 0515- 1035 2-38 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 167 Replaceable Parts Assemblies and Hardware Options Figure 2-17 Disassembled Front Panel View 2-39 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 168: Disassembled Rear Panel View

    Right Rear Strut (E8257D & E8663D) E8251- 00006 Right Rear Strut (E8267D) E8251- 00308 Left Rear Strut (E8257D & E8663D) E8251- 00030 Left Rear Strut (E8267D) E8251- 00200 Shouldered Washer (E8267D) 00310- 48801 2-40 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 169 Replaceable Parts Assemblies and Hardware Options Figure 2-18 E8257D/E8663D Disassembled Rear Panel View 2-41 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 170 Replaceable Parts Assemblies and Hardware Options Figure 2-19 E8267D Disassembled Rear Panel View 2-42 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 171: Disassembled A32 10 Mhz Crystal Oscillator (Option Unr/Unx/Uny And Instruments With Serial Prefixes >= Us4805/My4805)

    Nut- Hex M3.0 (line module ground) 0535- 0031 Screw- Machine M3.0 x 8 CW- PN- TX 0515- 0372 Figure 2-20 Disassembled A32 10 MHz Crystal Oscillator (Option UNR/UNX and Instruments with Serial Prefixes > US4805/MY4805) 2-43 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 172: Disassembled At1 90Db/115Db Attenuator View (Option 1E1)

    Table 2-7 Disassembled AT1 115 dB Attenuator View (Option 1E1) Item No. Description Part Number Bracket E8251- 00038 Screw- Machine M3.0 x 8 FL- TX 0515- 1035 Figure 2-21 Disassembled AT1 90dB/115dB Attenuator View (Option 1E1) 2-44 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 173 Screw- Machine SM 256 .250 PN- PN 0520- 0128 Screw- Machine M3.0 x 8 CW- PN- TX 0515- 0372 Figure 2-22 Disassembled A24 20GHz/40GHz Highband Coupler and A25B Highband Detector Bias Board 2-45 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 174 Screw- Machine M4.0 x .312 PN- PN 0520- 0128 Screw- Machine M3.0 x 8 CW- PN- TX 0515- 0372 Figure 2-23 Disassembled A24 20GHz Highband Coupler and A25B Highband Detector Bias Board (Option 521) 2-46 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 175: Disassembled A24 50Ghz Highband Coupler And A25B Highband Detector Bias Board

    Screw- Machine M4.0 x .312 PN- PN 2200- 0103 Screw- Machine M3.0 x 8 CW- PN- TX 0515- 0372 Figure 2-24 Disassembled A24 50GHz Highband Coupler and A25B Highband Detector Bias Board 2-47 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 176: Disassembled A24 67Ghz Highband Coupler And A25B Highband Detector Bias Board

    Screw- Machine M4.0 x .312 PN- PN 0515- 0658 Screw- Machine M3.0 x 8 CW- PN- TX 0515- 0372 Figure 2-25 Disassembled A24 67GHz Highband Coupler and A25B Highband Detector Bias Board 2-48 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 177: Microcircuit Interface Deck Top View

    Item No. Description Part Number Screw- Machine M3.0 x 14 CW- PN- TX 0515- 0665 Figure 2-26 E8257D & E8663D Microcircuit Interface Deck Top View Figure 2-27 E8267D Microcircuit Interface Deck Top View 2-49 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 178: Main Chassis And Mid Bottom View

    Screw- Machine M30. x 20 CW- PN- TX (A29 20 GHz Doubler to MID) 0515- 1410 Screw- Machine M30. x 20 CW- PN- TX (A13 I/Q MUX to MID) (E8267D) 0515- 1410 2-50 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 179 Replaceable Parts Assemblies and Hardware Options Figure 2-28 Main Chassis and MID Bottom View (E8257D & E8663D) (3 places) (15 places) (2 places) (3 places) (2 places) 2-51 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 180 Replaceable Parts Assemblies and Hardware Options Figure 2-29 Main Chassis and MID Bottom View (E8267D) (3 places) (8 places) (2 places) (2 places) (3 places) (15 places) 2-52 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 181: Mm Rf Output Connector (Option 567 Only)

    0515- 1269 Washer lock .377ID 2190- 0104 Nut- Hex 2950- 0132 W92 Semi- Rigid Cable (refer to Table 2- 2 on page 26.) Figure 2-30 1.85 mm RF Output Connector (Option 567 Only) 2-53 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 182: Mm Rf Output Connector

    E8251- 00216 Screw- Machine M4.0 x 10 FL- TX (front frame to adapter bracket) 0515- 1269 Washer lock .377ID 2190- 0104 Nut- Hex 08360- 20133 Figure 2-31 2.4 mm RF Output Connector 2-54 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 183: Apc 3.5 Rf Output Connector (Option 520 Only)

    0515- 1269 Washer lock .377ID 2190- 0016 Nut- Hex 2950- 0001 W86 Semi- Rigid Cable (refer to Table 2- 2 on page 26.) Figure 2-32 APC 3.5 RF Output Connector (Option 520 Only) 2-55 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 184: Type- N Rf Output Connector (Option 1Ed Models Only)

    E8251- 20067 Adapter Bracket E8251- 00216 Screw- Machine M4.0 x 10 FL- TX 0515- 1035 Washer lock 2190- 0102 Nut- Hex 2950- 0132 Figure 2-33 Type-N RF Output Connector (Option 1ED Models Only) 2-56 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 185: Main Chassis With Inside Cover And Right- Side Support Wall

    Microcircuit Interface Deck (E8257D (E8663D) E8251- 00004 Microcircuit Interface Deck (E8267D) E8251- 00303 E8257D & E8663D Main Chassis E8251- 60354 E8267D Main Chassis E8251- 60350 Figure 2-34 Main Chassis with Inside Cover and Right-Side Support Wall 2-57 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 186: Outer And Inner Instrument Covers And Associated Parts

    Figure 2- 35 Figure 2- 36 5041- 9172 Trim- Side Overlay (Refer to and to on page 59) Outside Instrument Cover E8251- 00012 Figure 2-35 Outer and Inner Instrument Covers and Associated Parts 2-58 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 187: Miscellaneous

    E8251- 90359 Specifications/Data Sheet (E8267D) 5989- 0697EN Specifications/Data Sheet (E8257D) 5989- 0698EN Specifications/Data Sheet (E8663D) 5989- 4866EN NOTE The E8257D/67D & E8663D PSG documentation can also be found on the web at http://www.agilent.com/find/psg. 2-59 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 188: Electrostatic Discharge (Esd) Protective Supplies

    ESD connector end cap coherent carrier cut 1252- 4696 2 X 4 Ft. Antistatic Table Mat with 15 FT. Ground Wire 9300- 0797 5 Ft. Grounding Cord (for wrist strap) 9300- 0980 Adjustable Antistatic Wrist Strap 9300- 1367 2-60 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 189: Abbreviations Used In Part Descriptions

    (screws) in- phase low frequency meters or metric hardware patch lock (screws) or printed circuit panhead (screws) quadrature quantity radio frequency reverse power protection subminiature type- A TORX recess (screws) 2-61 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 190 Replaceable Parts Assemblies and Hardware Options 2-62 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 191: Before You Replace An Assembly

    “A24 50 GHz Highband Coupler (Options 532 and 544)” on page 3- 60 • “A24 67 GHz Highband Coupler (Options 550 and 567)” on page 3- 62 • “A25 20 GHz Highband Detector (Options 503, 509, 520, & 521)” on page 3- 64 3- 1 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 192 “AT1 115 dB Attenuator” on page 3- 124 • “AT1 90 dB Attenuator (Option 1EM)” on page 3- 126 • “AT1 115 dB Attenuator (Option 1EM)” on page 3- 128 • “B1 Fan” on page 3- 130 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 193 Assembly Replacement Assemblies That You Can Replace This page intentionally left blank. E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 194: Outer Instrument Cover

    6. Tilt the signal generator forward and slide the outer cover (6) back to remove it from the frame. Replacement Procedure • Reverse the order of the removal procedures. • Torque all T–15 screws to 21 in–lbs. • Torque all T–20 screws to 21 in–lbs. E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 195 Assembly Replacement Outer Instrument Cover Figure 3-1 Outer Instrument Cover Removal E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 196: Inner Instrument Cover

    4. Using the T–10 driver, remove all twenty- two screws (1) from the inner cover (2). 5. Remove the inner cover. Replacement Procedure • Reverse the order of the removal procedures. • Torque all T–10 screws to 9 in–lbs. E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 197 Assembly Replacement Inner Instrument Cover Figure 3-2 Inner Instrument Cover Removal E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 198: Front Panel

    And for serial number prefix > US/MY5XXX3XXX, disconnect the A2W1 display cable from the A31 Motherboard P12. (refer to Figure 3- 11. Disconnect the W9 ribbon cable from the A31 Motherboard P11. 12. Remove the front panel. E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 199: Replacement Procedure

    4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-3 Front Panel Removal with serial prefixes < US/MY5XXX3XXX Applicable if the A2 does not have the most current LCD. E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 200 Assembly Replacement Front Panel Figure 3-4 Front Panel Removal with serial prefixes > US/MY5XXX3XXX 3-10 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 201: A1 Keyboard

    Replacement Procedure 1. Reverse the order of the removal procedures. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-11 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 202 Assembly Replacement A1 Keyboard Figure 3-5 A1 Keyboard Removal with serial prefixes < US/MY5XXX3XXX Applicable if the A2 does not have the most current LCD. 3-12 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 203 Assembly Replacement A1 Keyboard Figure 3-6 A1 Keyboard Removal with serial prefixes > US/MY5XXX3XXX 3-13 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 204: A2 Display

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-14 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 205 Assembly Replacement A2 Display Figure 3-7 A2 Display Removal with serial prefixes < US/MY5XXX3XXX Applicable if the A2 does not have the most current LCD. 3-15 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 206 Assembly Replacement A2 Display Figure 3-8 A2 Display Removal with serial prefixes > US/MY5XXX3XXX 3-16 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 207: A2Ds1 Display Backlight (Serial Number Prefix < Us/My5Xxx3Xxx Only)

    When replacing the A2DS1 Display Backlight make sure the reflective paper is behind the light. 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-17 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 208 Assembly Replacement A2DS1 Display Backlight (serial number prefix < US/MY5XXX3XXX only) Figure 3-9 A2DS1 Display Backlight Removal 3-18 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 209: A3 Power Switch

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-19 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 210 Assembly Replacement A3 Power Switch Figure 3-10 A3 Power Switch Removal with serial number prefix < US/MY5XXX3XXX Applicable if the A2 does not have the most current LCD. 3-20 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 211 Assembly Replacement A3 Power Switch Figure 3-11 A3 Power Switch Removal with serial number prefix > US/MY5XXX3XXX 3-21 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 212: A4 Inverter (Serial Number Prefix < Us/My5Xxx3Xxx Only)

    5. Remove the A4 Inverter by carefully pulling it away from the front panel. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-12 A4 Inverter Removal 3-22 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 213: A5 Sampler, A6 Frac–N, A7 Reference (Standard And Option Unr/Unx/Uny), A8 Output A45 Frac- N And A46 Offset

    1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-13 A5 Sampler, A6 Frac–N, A7 Reference, A8 Output, A45 Frac-N and A46 Offset A6/A45 A5/A46 3-23 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 214: A9 Yig Driver

    7. Lift the A9 YIG Driver out of the slot. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-24 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 215 Assembly Replacement A9 YIG Driver Figure 3-14 A9 YIG Driver W12/A9J5 W54/A9J9 W10/A9J3 W11/A9J4 3-25 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 216: Tools Required

    6. Lift the A10 ALC out of the slot. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-26 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 217 Assembly Replacement A10 ALC Figure 3-15 A10 ALC W4/A10J4 W14/A10J5 W13/A10J201 W122/A10J303 W55/A10J304 (E8267D only) W15/A10J3 W111/A10J203 (Option 550/567) Option 550/567– W95/A10J202 Option 532/544– W110/A10J202 3-27 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 218: A11 Pulse/Analog Modulation Generator

    Lift the A11 Pulse/Analog Modulation Generator out of the slot. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-28 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 219 Assembly Replacement A11 Pulse/Analog Modulation Generator Figure 3-16 A11 Pulse/Analog Modulation Generator W16/A11J204 W96/A11J206 W3/A11J403 W7/A11J202 W5/A11J201 W2/A11J402 W17/A11J205 W6/A11J203 W1/A11J401 3-29 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 220: A12 Pulse Modulator Board

    8. Using the T–10 driver, remove the sheet metal from A12 Pulse Modulator Board. Replacement Procedure • Reverse the order of the removal procedure. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-30 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 221 Assembly Replacement A12 Pulse Modulator Board Figure 3-17 A12 Pulse Modulator Board 3-31 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 222: A13 I/Q Mux (E8267D Standard Or With Option 015) (Serial Prefixes

    Replacement Procedure 1. Reverse the order of the removal procedure. (See the internal cover overlay for cable color codes.) 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-32 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 223 A13 I/Q MUX (E8267D Standard or with Option 015) (Serial Prefixes <US4722/MY4722) Figure 3-18 A13 I/Q MUX (E8267D Standard or with Option 015) (Serial Prefixes <US4722/MY4722) W56/A13J14 W63/A13J5 W62/A13J6 W57/A13J13 W49/A13J7 W58/A13J12 W59/A13J11 W61/A13J9 W50/A13J8 W60/A13J10 3-33 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 224: A13 I/Q Mux (E8267D Standard Or With Option H16/016) (Serial Prefixes >=Us4722/My4722)

    Replacement Procedure 1. Reverse the order of the removal procedure. (See the internal cover overlay for cable color codes.) 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-34 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 225 Figure 3-19 A13 I/Q MUX (E8267D Standard or with Option 016) (Serial Prefixes >US4722/MY4722) W49/A13J7 W129/A13J21 W125/A13J19 W50/A13J8 W57/A13J13 W62/A13J6 W58/A13J12 W126/A13J20 W63/A13J5 W130/A13J22 W131/A13J9 W128/A13J18 W123/A13J15 W127/A13J17 W56/A13J14 W132/A13J10 W124/A13J16 W59/A13J11 3-35 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 226: A14 Baseband Generator (E8267D Only)

    9. Lift the A14 Baseband Generator out of the slot. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-36 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 227 Assembly Replacement A14 Baseband Generator (E8267D Only) Figure 3-20 A14 Baseband Generator W65/A14J800 W64/A14J13 W90/A14J21 3-37 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 228: A17 Baseband Generator Interface (E8267D Only)

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all hex screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-38 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 229 Assembly Replacement A17 Baseband Generator Interface (E8267D Only) Figure 3-21 A17 Rear Panel Interface Board W90/A17P1 W64/A17P2 W68/A17P4 3-39 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 230: Tools Required

    7. Lift the A18 CPU out of the slot. Replacement Procedure 1. To Install the CPU, reverse the order of the removal procedure. 2. Perform the post–repair CPU Configuration process. 3. Perform theA18 CPU post–repair adjustments and performance tests. 3-40 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 231 Assembly Replacement A18 CPU Figure 3-22 A18 CPU E8267D: W66/A18P2 E8267D: W64/A14J13 W19/A18J2 W18/A18J1 E8267D: W90/A14J21 3-41 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 232: A18Bt1

    1. To install the battery, the positive side is aligned with the positive sign on the A18’s battery clip. 2. Reverse the remaining steps of the removal procedure. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-42 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 233 Assembly Replacement A18BT1 Figure 3-23 A18BT1 W18/A18J1 W19/A18J2 E8267D: W66/A18P2 E8267D: W90/A14J21 E8267D:W64/A14J13 3-43 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 234: A19 Power Supply

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-44 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 235 Assembly Replacement A19 Power Supply Figure 3-24 A19 Power Supply Removal A22W2 A22W1 W66/A18J2 W64/A14J13 W18/A18J1 3-45 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 236: A20 Smi (Source Module Interface)

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all hex screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-46 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 237 Assembly Replacement A20 SMI (Source Module Interface) Figure 3-25 A20 SMI 3-47 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 238: A21 Rear–Panel Interface

    2. Torque all T–10 screws to 9 in–lbs. 3. Torque all hex–nuts to 9 in–lbs. 4. Torque all BNC nuts to 21 in–lbs. 5. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-48 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 239 Assembly Replacement A21 Rear–Panel Interface Figure 3-26 A21 Rear Panel Interface 3-49 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 240: A22 Line Module

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all nuts to 9 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-50 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 241 Assembly Replacement A22 Line Module Figure 3-27 A22 Line Module Removal 3-51 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 242: A23 Lowband Coupler/Detector

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-52 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 243 Assembly Replacement A23 Lowband Coupler/Detector Figure 3-28 A23 Lowband Coupler/Detector E8257D & E8663D – W37 E8267D – W75 3-53 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 244: A24 20 Ghz Highband Coupler (Options 503, 509, 520, And 521)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-54 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 245 A24 20 GHz Highband Coupler (Options 503, 509, 520, and 521) Figure 3-29 A24 20 GHz Highband Coupler (Options 503, 509, and 520 – Standard) A25B Figure 3-30 A24 20 GHz Highband Coupler (Options 503, 509 and 520 – Option 1EM) A25B 3-55 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 246 A24 20 GHz Highband Coupler (Options 503, 509, 520, and 521) Figure 3-31 A24 20 GHz Highband Coupler (Option 521 - Standard) A25B W144 W142 Figure 3-32 A24 20 GHz Highband Coupler (Option 521 - Option 1EM) W143 W147 A25B 3-56 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 247 Assembly Replacement A24 20 GHz Highband Coupler (Options 503, 509, 520, and 521) This page intentionally left blank. 3-57 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 248: A24 40 Ghz Highband Coupler (Option 540)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-58 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 249 A24 40 GHz Highband Coupler (Option 540) Figure 3-33 A24 40 GHz Highband Coupler (Option 540 – Standard) A25BW1 Figure 3-34 A24 40 GHz Highband Coupler (Option 540 – Option 1EM) A25B A25BW1 3-59 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 250: A24 50 Ghz Highband Coupler (Options 532 And 544)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-60 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 251 Figure 3-35 A24 50 GHz Highband Coupler (Options 532 & 544 – Standard) A25B W102 Figure 3-36 A24 50 GHz Highband Coupler (Options 532 & 544 – Option 1EM) W102 A25 & A33 A25B 3-61 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 252: A24 67 Ghz Highband Coupler (Options 550 And 567)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-62 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 253 A24 67 GHz Highband Coupler (Options 550 and 567) Figure 3-37 A24 67 GHz Highband Coupler (Options 550 & 567 – Standard) W112 A25B Figure 3-38 A24 67 GHz Highband Coupler (Options 550 & 567 and Option 1EM) A25B W112 3-63 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 254: A25 20 Ghz Highband Detector (Options 503, 509, 520, & 521)

    1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-39 A25 20 GHz Highband Detector (Options 503, 509, & 520) 3-64 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 255 Assembly Replacement A25 20 GHz Highband Detector (Options 503, 509, 520, & 521) Figure 3-40 A25 20 GHz Highband Detector (Option 521) 3-65 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 256: A25 40 Ghz Highband Detector (Option 540)

    2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-41 A25 40 GHz Highband Detector (Option 540) 3-66 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 257: A25 50 Ghz Highband Detector (Options 532 And 544)

    1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-42 A25 50 GHz Highband Detector (Options 532 and 544) 3-67 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 258: A25 67 Ghz Highband Detector (Options 550 And 567)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-68 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 259 Assembly Replacement A25 67 GHz Highband Detector (Options 550 and 567) Figure 3-43 A25 67 GHz Highband Detector (Options 550 and 567) 3-69 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 260: A25B Highband Detector Bias Board

    Replacement Procedure • Reverse the order of the removal procedure. • Torque all T–10 screws to 9 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-70 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 261 Assembly Replacement A25B Highband Detector Bias Board Figure 3-44 A25B Highband Detector Bias Board A25B A25BW1 3-71 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 262: A26 Mid (Microcircuit Interface Deck)

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-72 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 263 Figure 3-45 A26 MID (E8257D & E8663D) W113/A26J34 W20/A26J20 W28A26J15 W36/A26J13 W19/A26J30 W69/A26J14 W35/A26J10 W34/A26J31 W33/A26J32 Figure 3-46 A26 MID (E8267D) W28/A26J15 W99/A26J35 (Options 532 & 544) W20/A26J20 W36/A26J13 W69/A26J14 W19/A26J30 W35/A26J10 W70/A26J34 W116/A26J36 W33/A26J32 W34/A26J31 3-73 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 264: A27 40 Ghz Doubler (Option 540)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-74 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 265 Assembly Replacement A27 40 GHz Doubler (Option 540) Figure 3-47 A27 40 GHz Doubler (Option 540) Standard – W30 Option 1EM – W83 3-75 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 266: A27 40 Ghz Doubler (Options 532 And 544 Only)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-76 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 267 Assembly Replacement A27 40 GHz Doubler (Options 532 and 544 only) Figure 3-48 A27 40 GHz Doubler (Options 532 and 544) W104/A27J1 W100/A27J2 W116/A27J10 3-77 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 268: A28 Yig Oscillator

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-78 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 269 Assembly Replacement A28 YIG Oscillator Figure 3-49 A28 YIG Oscillator E8257D & E8663D – W38 E8267D – W101 (not shown) 3-79 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 270: A29 20 Ghz Doubler

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-80 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 271 Assembly Replacement A29 20 GHz Doubler Figure 3-50 A29 20 GHz Doubler E8257D & E8663D – W41/A29J2 W33/A29J10 E8267D – W77/A29J2 W39/A29J4 E8257D & E8663D – W38/A29J1 E8267D – W115/A29J1 3-81 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 272: A30 Modulation Filter (Standard And Option 1Ea/1Eu)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-82 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 273 W32 (Options 503/509/520/532/540) W27/A30J3 W106 (Option 550/567) E8257D & E8663D – W74 (Options 503/509/520/521), W31 (Option 540), W107 (Option 550/567), W71 (Option 1EM) E8267D – W74 (Option 520), W103/A30J2, W71 (Option 1EM) 3-83 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 274: A31 Motherboard (E8257D & E8663D)

    2. Send command: DIAG:FILE:BACK, this copies data to the Motherboard. 3. Torque all T–10 screws to 9 in–lbs. 4. Torque all RF connectors to 8 in–lbs. 5. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-84 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 275 Assembly Replacement A31 Motherboard (E8257D & E8663D) Figure 3-52 A31 Motherboard (E8257D & E8663D) W135/A31P242 W23/A31P241 (Option 521 only) W35/A31P201 W40/A29J3 W137 W39/A29J4 W21/A31J1043 W22/A31J1042 W47/A31J1041 W11/A31J1021 W10/A31J1031 W138 W54/A31J1032 3-85 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 276: A31 Motherboard (E8267D)

    1. Reverse the order of the removal procedure. 2. Send command "DIAG:FILE:BACK", this copies data to the Motherboard. 3. Torque all T–10 screws to 9 in–lbs. 4. Torque all RF connectors to 8 in–lbs. 3-86 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 277 A31 Motherboard (E8267D) 5. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-53 A31 Motherboard (E8267D) W68/A31J250 W52/A31J501 W51/A31J500 W53/A31J502 W21/A31J1043 W22/A31J1042 W47/A31J1041 W61/A31J1053 W60/A31J1052 W10/A31J1031 W54/A31J1032 W11/A31J1021 3-87 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 278: A32 10 Mhz Crystal Oscillator

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-88 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 279 Assembly Replacement A32 10 MHz Crystal Oscillator Figure 3-54 A32 Crystal Oscillator (Option UNR/UNX only) 3-89 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 280: A33 6Db Pad (Options 503, 509, 520, And 521)

    Replacement Procedure • Reverse the order of the removal procedure. • Torque all RF connectors to 8 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-90 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 281 Assembly Replacement A33 6dB PAD (Options 503, 509, 520, and 521) Figure 3-55 A33 6dB PAD (Options 503, 509, 520, and 521) 3-91 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 282: A33 10Db Pad (Options 532 And 544)

    Replacement Procedure • Reverse the order of the removal procedure. • Torque all RF connectors to 8 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-92 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 283 Assembly Replacement A33 10dB PAD (Options 532 and 544) Figure 3-56 A33 10dB PAD (Options 532 and 544) 3-93 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 284: Rear Panel (Standard)

    (Option UNR/UNX). 11. Using the T–10 driver, remove the eleven screws (1) that secure the Rear Panel to the instrument chassis. 12. Using the needle–nose pliers, disconnect A22W1 from the power supply. 3-94 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 285: Replacement Procedure

    • Torque all T–10 screws to 9 in–lbs. • Torque all RF connectors to 8 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-57 Rear Panel Removal (under chain) 3-95 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 286: Rear Panel (Option 1Em)

    • W49 (I IN) from A13 I/Q MUX J7 (E8267D only) • W65 (BASEBAND GEN REF IN) from A14 Baseband Generator Board J800 (E8267D only) 9. Using the 5/16” open–ended wrench, disconnect the following RF cables 3-96 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 287: Replacement Procedure

    • Reverse the order of the removal procedure. • Torque all T–10 screws to 9 in–lbs. • Torque all RF connectors to 8 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-97 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 288 Assembly Replacement Rear Panel (Option 1EM) Figure 3-58 Rear Panel Removal (Option 1EM) A22W2 A22W1 W64/A14J13 W18/A18J1 3-98 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 289: A34 Internal Hard Drive (E8267D Only - Discontinued)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. Figure 3-59 A34 Internal Hard Drive W66/A18P2 3-99 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 290: A35 3–20 Ghz I/Q Modulator (E8267D Only - Standard Or With Option 015)

    • Reverse the order of the removal procedure. (See the internal cover overlay for cable color codes.) • Torque all T–10 screws to 9 in–lbs. • Torque all RF connectors to 8 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-100 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 291 Assembly Replacement A35 3–20 GHz I/Q Modulator (E8267D Only - Standard or with Option 015) Figure 3-60 A35 3–20 GHz I/Q MOD W80/A35J106 W79/A35J9 W62/A35J7 W63/A35J6 W105/A35J4 W97/A35J8 W77/A35J1 W104/A35J3 3-101 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 292: A35 3–20 Ghz I/Q Modulator (E8267D Only - Standard Or With Option H16/016) (Serial Prefixes Us4722/My4722)

    • Reverse the order of the removal procedure. (See the internal cover overlay for cable color codes.) • Torque all T–10 screws to 9 in–lbs. • Torque all RF connectors to 8 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-102 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 293 A35 3–20 GHz I/Q Modulator (E8267D Only - Standard or with Option H16/016) (Serial Prefixes >=US4722/MY4722) Figure 3-61 A35 3–20 GHz I/Q MOD (E8267D only - Standard or with Option 016) (Serial Prefixes >US4722/MY4722) W129/A35J108 W130/A35J106 W63/A35J6 W62/A35J7 W128/A35J107 W127/A35J109 W134 W77/A35J1 3-103 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 294: A36 Quadraplier (Options 550 And 567)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-104 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 295 Assembly Replacement A36 Quadraplier (Options 550 and 567) Figure 3-62 A36 Quadraplier W112/RF OUT W109/A36J3 W110/A36J6 W108/A36J4 W96/A36J5 W111/A36J7 W106/A36J1 W107/A36J2 W113/A36J10 3-105 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 296: A37 Upconverter (E8267D Only)

    • Reverse the order of the removal procedure. • Torque all T–10 screws to 9 in–lbs. • Torque all RF connectors to 8 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-106 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 297 Assembly Replacement A37 Upconverter (E8267D Only) Figure 3-63 A37 Upconverter W102/A37J4 W114/A37J9 W98/A37J2 W103/A37J3 W97/A37J8 W100/A37J5 W78/A37J1 W99/A37J7 (backside) 3-107 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 298: A38 Lowband Switch Filter

    5. Lift the board assembly out of the slot. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-108 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 299 Assembly Replacement A38 Lowband Switch Filter Figure 3-64 A38 Low Band Switch Filter 3-109 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 300: A39 Directional Sweep Coupler

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-110 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 301 Assembly Replacement A39 Directional Sweep Coupler Figure 3-65 A39 Directional Sweep Coupler W115 W101 3-111 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 302: A40 Compact Flash Drive Assembly

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-112 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 303 Assembly Replacement A40 Compact Flash Drive Assembly Figure 3-66 A40 Flash Drive Assembly W66/A18P2 Figure 3-67 A41 Flash Drive Door Assembly Door Latch Screw 3-113 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 304: A41 Flash Drive Door Assembly

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-114 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 305 Assembly Replacement A41 Flash Drive Door Assembly Figure 3-68 A41 Flash Drive Door Assembly Door Latch Screw 3-115 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 306: A42 20 Ghz Power Amp (Option 521)

    Replacement Procedure 1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-116 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 307 Assembly Replacement A42 20 GHz Power Amp (Option 521) Figure 3-69 A42 20 GHz Power Amp W135/A42J9 Std: W142/A42 RF OUT 1EM: W143/A42 RF OUT W141/A42 RF IN 3-117 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 308: A43 Lowband Amp Filter

    7. Lift the A43 Lowband Amp Filter board out of the slot. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-118 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 309 Assembly Replacement A43 Lowband Amp Filter Figure 3-70 A43 Lowband Amp Filter W139 W140 3-119 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 310: A44 Scan Modulation Bias Adapter (E8257D- 520 And E8663D Only)

    8. Remove the A44 Scan Modulation Bias Adapter from the RF deck. Replacement Procedure 1. Reverse the order of the removal procedure. 2. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-120 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 311 Assembly Replacement A44 Scan Modulation Bias Adapter (E8257D-520 and E8663D Only) Figure 3-71 A44 Scan Modulation Bias Adapter A44 (Scan Modulation A44J1 Bias adapter) A44J5 A44J3 A44J2 3-121 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 312: At1 90 Db Attenuator

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-122 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 313 Assembly Replacement AT1 90 dB Attenuator Figure 3-72 AT1 90 dB Attenuator W117 AT1W1 3-123 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 314: At1 115 Db Attenuator

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-124 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 315 Assembly Replacement AT1 115 dB Attenuator Figure 3-73 AT1 115 dB Attenuator AT1W1/A26J13 Option 521: W143 Option 521: W145 3-125 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 316: At1 90 Db Attenuator (Option 1Em)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-126 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 317 Assembly Replacement AT1 90 dB Attenuator (Option 1EM) Figure 3-74 AT1 90 dB Attenuator (Options 1EM) 3-127 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 318: At1 115 Db Attenuator (Option 1Em)

    1. Reverse the order of the removal procedure. 2. Torque all T–10 screws to 9 in–lbs. 3. Torque all RF connectors to 8 in–lbs. 4. Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-128 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 319 AT1 115 dB Attenuator (Option 1EM) Figure 3-75 AT1 115dB Attenuator (Option 1EM) Option 521 – W147 Option 521 – W46 Options 503/509/520/540 – W72 Options 503/509/520/540 – W73 Options 532/544 – W93 Options 532/544 – W85 3-129 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 320: Tools Required

    • Reverse the order of the removal procedure. • Torque all T–10 screws to 9 in–lbs. • Torque all RF connectors to 8 in–lbs. • Perform the post–repair adjustments and performance tests that pertain to this removal procedure. 3-130 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 321 Assembly Replacement B1 Fan Figure 3-76 B1 Fan 3-131 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 322 Assembly Replacement B1 Fan 3-132 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 323 “Performance Tests: Assemblies A18—A29 (For prefixes >= xx4928)” on page 4- 12 • “Performance Tests: Assemblies A30—A46, AT1, B1, and RF Output Connector (For prefixes >= xx4928)” on page 4- 13 • “CPU Configuration” on page 4- 14 4- 1 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 324: Post–Repair Procedures Matrix

    ✓ High Band IQ Power Floor Calibration Low Band IQ Power Floor Calibration ✓ ✓ ✓ ALC Modulator Calibration ✓ Low Band ALC Modulator Calibration ✓ ✓ ALC Mod Bias DAC Sensitivity Calibration E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 325 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ High Band Power Flatness Calibration ✓ ✓ V- Band Power Flatness Calibration ✓ IQ Power Floor Calibration ✓ Low Band IQ Power Floor Calibration ✓ ✓ ✓ IQ Impairment Calibration E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 326 ALC Modulator Calibration ✓ ✓ ✓ ALC Mod Bias DAC Sensitivity Calibration ✓ AM Gain Calibration ✓ IQ Impairment Calibration ✓ Pulse Width Calibration ✓ Attentuator Cycle Count Reset (Service Software - Utility) E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 327 High Band Scan Modulator Calibation (E8257D/E8663D with option HSM or 1SM) ✓ User Clamp Refinement Calibration (E8257D/E8663D with Option HSM or 1SM and Option 1EU Only) ✓ Power Clamp Refinement Calibration (E8257D/E8663D with Option HSM or 1SM Only) E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 328 Low Band Power Maximum Calibration ✓ Low Band ALC Modulator Prep Calibration ✓ ✓ V- Band Power Flattness Calibration (E8257D with Option 567 Only) V- Band Low Power Attenuator Accuracy (E8257D with Option 567 and 1E1 Only) E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 329 ✓ IQ Upconverter Gain Calibration ✓ FM 1/2 Path Ratio Gain Calibration (E8257D/E8663D with Option UNT) ✓ Mod Source Relative Gain Calibration ✓ FM/PM YO Frequency Compensation Calibration (E8257D/E8663D with Option UNT ) E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 330 ✓ ✓ Internal Pulse Modulation Rise/Fall Time ✓ ✓ DC FM Carrier Offset ✓ ✓ ✓ Internal FM Frequency Response ✓ ✓ ✓ External Phase Modulation Frequency Response ✓ ✓ Internal FM Distortion E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 331 Maximum Leveled Output Power ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Power Level Accuracy ✓ Internal FM Frequency Response ✓ External Phase Modulation Frequency Response ✓ External FM Deviation Accuracy E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 332 External Pulse Modulation ON/OFF Ratio ✓ ✓ ✓ ✓ ✓ ✓ Harmonic Spurious ✓ ✓ ✓ Sub–Harmonic Spurious ✓ ✓ ✓ ✓ ✓ ✓ Non–Harmonic Spurious ✓ ✓ ✓ Single–Sideband Phase Noise 4-10 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 333 Internal Phase Modulation Deviation Accuracy (E8257D/E8267D/E8663D Option UNT ) ✓ ✓ Internal FM Distortion (E8257D/E8267D/E8663D Option UNT ) ✓ ✓ Internal Phase Modulation Distortion (E8257D/E8267D/E8663D Option UNT) ✓ ✓ ✓ ✓ ✓ Harmonic Spurious 4-11 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 334 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Power Level Accuracy ✓ Internal FM Frequency Response (E8257D/E8267D/E8663D Option UNT Only) ✓ Internal Phase Modulation Deviation Accuracy (E8257D/E8267D/E8663D Option UNT ) ✓ ✓ ✓ ✓ Harmonic Spurious 4-12 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 335 UNW, UNS, or HNS, E8663D Option UNW ) ✓ ✓ DC FM Carrier Offset (E8257D/E8267D/E8663D Option UNT ) ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ Harmonic Spurious ✓ ✓ ✓ ✓ ✓ ✓ Sub–Harmonic Spurious 4-13 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 336: Cpu Configuration

    The programs open the files and saves the routines to a folder. d. Click when asked to create a short–cut on your desktop. 6. Install the new firmware: a. Open the PSG–ESG Upgrade Assistant. 4-14 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 337 Modify License Key d. Using the numeric key pad and the softkeys, enter the license key. When the signal generator accepts the license key, a check mark appears next to the license 4-15 E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 338 Proceed With Reconfiguration If a license key does not turn an option on, proceed to Step 11 and perform the step as if the license keys had not been retrievable from the CPU. 4-16 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 339: General Safety Considerations

    CAUTION Many of the assemblies in this instrument are very susceptible to damage from electrostatic discharge (ESD). Perform service procedures only at a static- safe workstation and wear a grounding strap. 5- 1 E8257D/67D, E8663D PSG Signal Generators Service Guide...

  • Page 340: Lithium Battery Disposal

    Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institute’s calibration facility, and to the calibration facilities of other International Standards Organization members. E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 341 A17 Baseband Generator self-test A28 YIG Oscillator, Interface A6 Frac-N description A18 CPU description , 94, A29 20 GHz Doubler, A18BT1 Battery self-test , 39, description A19 Power Supply , 96, A7 Reference E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 342 AT1 115 dB Attenuator , 124, lowband, replacement description front panel AT1 90 dB Attenuator , 122, configuration replacement B1 Fan data backup subassemblies replacement front panel replacement display instrument cover, inner troubleshooting E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 343 , 68, replaceable parts replacement , 108, 118, RF levels, troubleshooting assemblies power supply hardware dc voltage specifications ordering information motherboard LED locations RF path E8257D , 25, description E8257D/67D, E8663D PSG Signal Generators Service Guide...
  • Page 344 RF path block diagram E8257D , 107, 109, 115, unlevels, troubleshooting 117, unlocks, troubleshooting RF path, description upconverter, replacement SMI, replacement source module interface, replacement E8257D/67D, E8663D PSG Signal Generators Service Guide...

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