Keysight N5241BU-205 Installation Note Download Page 54

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54 Appendix - Synthesizer Board

Synthesizer Board Upgrade (N5240-60074 (with Tabs)/N5240-60076 (Without Tabs)

Version F/G to Version H)
Procedure

Procedure

If you have already removed your synthesizer board, proceed to step

Else, to remove your synthesizer board, refer to the Service Guide for your

instrument that can be downloaded from

www.keysight.com

Remove resistor R71. Refer to

Figure 1 on page 55

Clean pads.

Replace with resistor 1 k

(0699-3947). Refer to

Figure 1 on page 55

Remove capacitor C252.

Clean pads.

Table 1

Parts List for Synthesizer Board Upgrade Kit Modification

Part number

Description

0699-3947

1 k

Resistor

0161-4279

F capacitor

a. The factory will provide these items upon request.

Summary of Contents for N5241BU-205

Page 1: ...ight Add Low Frequency Extension LFE Capability Upgrade Kit To Upgrade PNA X N5241B N5242B or N5249B Option 201 to Option 205 Upgrade Kit Order Number N5241BU 205 N5242BU 205 and N5249BU 205 Keysight...

Page 2: ...U S government customers under its standard commercial license which is embodied in its End User License Agreement EULA a copy of which can be found at http www keysight com find sweula The license s...

Page 3: ...4 mm connectors bias tees couplers and some semi rigid cables were replaced with components that have 3 5 mm connectors If your analyzer s serial number prefix is MY SG US5310 and below Your analyzer...

Page 4: ...ilable on the Web at http www keysight com find assist If you do not have access to the Internet please contact your Keysight field engineer If You Have Problems With the Upgrade Kit Contents Keysight...

Page 5: ...ined if mishandled Follow instructions carefully when making cable connections especially wire harness connections The person performing the work accepts responsibility for the full cost of the repair...

Page 6: ...Keysight will promptly email your license key file This upgrade only applies to B models Verify the License Contents Refer to the license message you received from Keysight If the model number serial...

Page 7: ...k on the Chapter 1 bookmark Electrostatic Discharge Protection in the PDF Service Guide1 ESD Equipment Required for the Installation Tools Required for the Installation 1 See Downloading the Online PN...

Page 8: ...25 4 mm torque wrench set to 72 in lbs 8 15 N m 1 N A 1 4 in 6 mm open end wrench 1 N A 9 mm nutsetter or open end torque wrench set to 21 in lbs 2 38 N m 1 N A Use a 5 16 in torque wrench set to 10 i...

Page 9: ...nstalling the Upgrade Products affected N5241B and N5242B Option 201 Installation to be performed by Keysight service center or personnel qualified by Keysight Estimated installation time 5 hours Esti...

Page 10: ...block 7 0515 0372 Machine screw M3 x 14 mm pan head to attach A75 LFE board on standoffs 2 0515 0665 Machine screw M3 0 x 18 pan head 2 to attach mixer brick 2 to mounting block 2 0515 0666 Machine s...

Page 11: ...to Synth LO 1 J102 1 N5242 60080 W174 Cable short coax LFE RF Port 1 bias combiner RF IN to Port1 A75 LFE board 1 N5240 60098 W177 Cable long assembly coaxial LFE RF Port 2 bias combiner RF IN to Por...

Page 12: ...ias Tee Assemblies Step 11 Assemble and Install the A71 and A74 Bias Tee Combiner Assemblies Step 12 Connect the A18 Motherboard IF Multiplexer IF MUX Low Frequency Extension LFE Test Set Motherboard...

Page 13: ...27 Install the Front Panel Overlay and Nameplate Step 28 Position the Cables and Wires to Prevent Pinching Step 29 Reinstall the Inner Cover Step 30 Reinstall the Outer Cover Step 31 Remove Option 201...

Page 14: ...View EEPROM Headers 2 Verify the LO Synthesizer Src1 Synth and Src2 Synth boards are all version H or greater Refer to Figure 1 on page 15 If the model number serial number or option number do not ma...

Page 15: ...s for upgrading For instructions click the Chapter 7 bookmark Removing and Replacing the A4 A13 Boards i e refer to your PNA s serial number prefix section in the PDF Service Guide1 Save all mounting...

Page 16: ...the other cables click the Chapter 6 bookmark Bottom RF Cables 4 Port Option 201 1 1 Place the analyzer bottom side up on a flat surface 2 For all analyzers Remove and discard the following cables in...

Page 17: ...mm components This kit replaces the Bias tee and the two 2 4 mm connected semi rigid cables on each port The 2 4 mm couplers and connecting cables in your analyzer must be replaced with new 3 5 mm cou...

Page 18: ...ookmark Removing and Replacing the A38 A41 Bias Tees in the PDF Service Guide1 The bias tee assemblies and bias cables will not be reused Step 11 Assemble and Install the A71 and A74 Bias Tee Combiner...

Page 19: ...Installation Note N5242 90125 19 Description of the Upgrade Installation Procedure for the Upgrade Figure 2 Assemble Bias T Combiners to brackets 5087 7403 N5242 00050 N5242 00051 and 0515 1227...

Page 20: ...ables as shown Note the orientation of the cable item 3 Install the N5240 60098 x1 cable as shown Note the orientation of the cable item 4 Add 5023 3299 x2 clamps and 0515 2141 x2 clamp screws as show...

Page 21: ...he Upgrade Installation Procedure for the Upgrade Refer to Figure 4 for this step of the procedure New parts are listed in Table on page 10 6 Install the N5240 60091 x2 DC cables as shown item Figure...

Page 22: ...rocedure for the Upgrade 7 Install the A71 A74 Bias T combiners onto bracket using 0515 0372 x6 screws item Refer to Figure 5 8 Install the 0515 1227 x2 screws onto bracket item Refer to Figure 5 Figu...

Page 23: ...oard IF MUX Test set motherboard MB IF MUX TSMB ribbon cable from the A18 system motherboard connector J1 and discard this cable Refer to Figure 6 N5240 60089 is shown but N5242 60004 is similar 2 Ins...

Page 24: ...Extension LFE Test set motherboard MB IF MUX LFE TSMB ribbon cable N5240 60089 and Connect the IF MUX Rear Panel Hardware 1 Reinstall the IF MUX board using 0515 0669 x4 screws item 2 For now hand tig...

Page 25: ...ear panel connectors using the washers and nuts removed in Step 9 Remove the A20 IF Multiplexer IF MUX Board on page 18 items and Torque to 6 in lbs Refer to Figure 8 4 Torque the 0515 0669 IF MUX boa...

Page 26: ...motherboard i e MB IF MUX LFE TSMB ribbon cable to IF MUX J1 and fold as shown item Refer to Figure 9 on page 26 6 Reconnect the IF MUX SPAM gray cables to the A20 IF MUX board as indicated in Figure...

Page 27: ...ep 14 Reinstall the handler Power and Other I O Assemblies Reinstall the handler power and other I O assemblies and fold cables out of the way of the LFE board to be plugged in items through Refer to...

Page 28: ...Upgrade Step 15 Reinstall the Mixer Brick MXB Cables Reconnect the other end of the mixer brick MXB cable item and all of the IF multiplexer IF MUX gray cables IF MUX board as shown items through Refe...

Page 29: ...ach Lower Bracket N5240 00011 to IF MUX Board Shield Attach N5240 00011 lower bracket to IF MUX board using 0515 0372 screws x4 Torque to 9 in lbs Refer to Figure 12 Figure 12 Attach lower bracket to...

Page 30: ...the 8120 5014 x2 8120 5017 x1 8120 5021 x1 and N5240 60089 cables as shown on the IF multiplexer IF MUX board items through You will connect the other ends of the IF gray cables later on the process...

Page 31: ...for the Upgrade 2 Route the reconnected IF mixer brick MXB and IF multiplexer IF MUX gray cables that were reconnected in Step 15 Reinstall the Mixer Brick MXB Cables on page 28 Refer to Figure 14 Fi...

Page 32: ...n Note N5242 90125 Description of the Upgrade Installation Procedure for the Upgrade Figure 15 Routing the new low frequency extension LFE Gray Cables on the IF MUX board 8120 5014 x2 8120 5017 x3 and...

Page 33: ...as a guide 2 Connect Motherboard IF Multiplexer LFT LFE Test set motherboard MB IF MUX LFT LFE TSMB ribbon cable to LFE board J1 item Refer to Figure 16 3 Install the A75 LFE board using the 0515 066...

Page 34: ...cables item through item as shown in Figure 17 8120 5014 x2 8120 5017 x1 and 8120 5021 x1 2 Connect the N5242 60078 Source 1 and N5242 60080 LO Source cables to the LFE board as shown items and The ot...

Page 35: ...allation Note N5242 90125 35 Description of the Upgrade Installation Procedure for the Upgrade 3 Route Power I O and Handler I O cables Refer to Figure 18 Figure 18 Route Power I O and Handler I O cab...

Page 36: ...ort1 and Port2 Connectors and Cable Clamps Onto Ferrite Beads on page 39 Follow instructions carefully when making cable connections especially wire harness connections Incorrect connections can destr...

Page 37: ...ors For installation of the following cables refer to Figure 19 on page 37 W167 N5222 20120 A74 Bias T combiner port 2 CPLR THRU W179 N5222 20124 A74 Bias T combiner to A32 port 2 test port coupler po...

Page 38: ...38 Installation Note N5242 90125 Description of the Upgrade Installation Procedure for the Upgrade Figure 20 Install A71 port 1 bias T combiner semirigid cables N5222 20119 and N5222 20123...

Page 39: ...Connectors and Cable Clamps Onto Ferrite Beads For the following steps refer to Figure 21 on page 40 Separate cables as much as possible OK to cross Not OK run parallel or next to each other Do not ti...

Page 40: ...A19 Test Set Motherboard 1 For instructions click the Chapter 7 bookmark Removing and Replacing the A19 Test Set Motherboard in the PDF Service Guide1 2 Reconnect ribbon cable N5242 60006 from J213 t...

Page 41: ...ables to the Rear Panel on page 41 Route the Bias Cables on page 42 Install the A71 and A74 Bias Tee Gray DC Bias Tee Combiner Low Frequency Extension LFE DC Cables to the Rear Panel Refer to Figure 2...

Page 42: ...tion Procedure for the Upgrade Route the Bias Cables 4 Route bias cables as shown Separate cables as much as possible It is OK to cross the cables Avoid running cables parallel or next to each other A...

Page 43: ...sizer and LO Synthesizer Board Gray Cables Refer to Figure 23 New parts are listed in Table 1 on page 10 1 The analyzer should be positioned on its left side fans facing upwards as shown 2 Connect N52...

Page 44: ...or a 2 port PNA New parts are listed in Table 1 on page 10 1 From the back side of the front panel use a blunt object in the cutouts in the lower front dress panel to push on the old overlay item and...

Page 45: ...For instructions on reinstalling the front panel assembly click the Chapter 7 bookmark Removing and Replacing the Front Panel Assembly in the PDF Service Guide1 Be sure to reinstall the two screws 051...

Page 46: ...overlay N5222 80016 2 Loosely place the overlay in the recess on the front panel 3 Placing two fingers at the middle press the overlay firmly onto the frame while sliding your fingers in opposite dir...

Page 47: ...n the PDF Service Guide1 Step 30 Reinstall the Outer Cover For instructions click the Chapter 7 bookmark Removing the Covers in the PDF Service Guide1 Step 31 Remove Option 201 License Procedure Requi...

Page 48: ...e license file s from the email s to the root directory of the USB flash drive More than one license file may be copied to the USB flash drive 3 Verifying and editing the license file For these steps...

Page 49: ...ve and remove the USB flash drive from your PC 4 Connect the USB flash drive to the PNA Within 5 seconds the PNA should display a small New licenses installed message Else load the license key file s...

Page 50: ...e to the hardware changes of the analyzer source adjustment IF gain adjustment receiver characterization receiver adjustment LFE receiver adjustment IF Response adjustment Options S93090xA B S93093A B...

Page 51: ...lyzer functions its performance relative to its specifications has not been verified It is recommended that a full instrument calibration be performed using the analyzer s internal performance test so...

Page 52: ...52 Installation Note N5242 90125 Description of the Upgrade Installation Procedure for the Upgrade...

Page 53: ...ight support training before beginning any repairs If you have not been properly trained by Keysight support personnel attempting to do this procedure could result in damage to the synthesizer board a...

Page 54: ...rd refer to the Service Guide for your instrument that can be downloaded from www keysight com 2 Remove resistor R71 Refer to Figure 1 on page 55 3 Clean pads 4 Replace with resistor 1 k 0699 3947 Ref...

Page 55: ...40 60074 with Tabs N5240 60076 Without Tabs Version F G to Version H Procedure 7 Replace with capacitor 22 F 0161 4279 Refer to Figure 1 on page 55 Figure 1 Remove old resistor and capacitor and repla...

Page 56: ...ress Utility System Service Utilities View EEPROM Headers b In the EEPROM Header Info window that opens press Edit Refer to Figure 2 on page 57 c In the window that opens Enter the password i e tsunam...

Page 57: ...Appendix Synthesizer Board 57 Synthesizer Board Upgrade N5240 60074 with Tabs N5240 60076 Without Tabs Version F G to Version H Procedure Figure 2 EEPROM Header Info Window...

Page 58: ...58 Appendix Synthesizer Board Synthesizer Board Upgrade N5240 60074 with Tabs N5240 60076 Without Tabs Version F G to Version H Procedure Figure 3 EEPROM Editor Window...

Page 59: ......

Page 60: ...This information is subject to change without notice Keysight Technologies 2009 2020 Edition 1 February 2020 www keysight com...

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