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Agilent 16900A, 16902A, and 16903A Logic Analysis System

1. sequence Try then B B Replace the CPU Return to 4 between motherboard each Check the hard drive power and signal cables Reseat RAM DIMMs Does the instrument reach 5 inthe boot sequence and is the power LED steady on No Failed OS boot from hard e drive 0 Run the recovery disk Try C then D then B Return to Replace the hard drive between each E and run the recovery disk Is the power LED steady on Does the instrument reach 7 in the boot sequence Failed the system file check Run the recovery disk Yes Blank screen display problem due to display mode Reboot b gt At Select OS menu press F8 to open advanced startup Select enable VGA mode then Continue 36 16900A 16902A and 16903A Service Guide Figure 10 16900A 16902A and 16903A Service Guide Troubleshooting 16903A Application Troubleshooting Flowchart Try each of the following steps in order Return to 1 between each Reinstall the logic analyzer application Check all cables to front panel assembly Check all cables to CPU motherboard PPPT Check all cables to IO board Reseat as necessary Replace the MIB board gt gt Replace the PCI bridge board gt 5 37 5
2. Module Interface Front Board N T10 Screw gt NI Chassis T10 Screws 4 T10 Screws 8 16900246 T10 Screws 2 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 Returning Assemblies Before shipping the logic analysis system or assemblies to Agilent Technologies contact your nearest Agilent Technologies Sales Office for additional details To locate the sales or service office near you go to http www agilent com find contactus 1 Write the following information on a tag and attach it to the part to be returned Name and address of owner Model number Serial number Description of service required or failure indications 2 Remove accessories from the logic analysis system Only return accessories to Agilent Technologies if they are associated with the failure symptoms 3 Package the logic analysis system or assemblies You can use either the original shipping containers or order materials from an Sales Office CAUTION For protection against electrostatic discharge package the logic analysis system in electrostatic material 4 Seal the shipping container securely and mark it FRAGILE 16900A 16902A and 16903A Service Guide 85 6 Replacing Assemblies 86 16900A 16902A and 16903A Service Guide Agilent 16900A 16902A 16903A Logic Analysis System Service Guide 7 Replaceable Parts Replaceable Par
3. lt 4 16900 36 6 Reverse this procedure to install the I O board 60 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 16903A 1 0 board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the CPU tray on page 53 1 Disconnect the I O cable 2 Using a Torx T10 screwdriver remove the 2 screws securing the I O board to the rear panel 3 Slide the I O panel out 1 0 Cable T10 Screw 1 0 Board Assembly ili IS 16903e10 T10 Screw 4 Reverse this procedure to install the I O board 16900A 16902A and 16903A Service Guide 61 6 Replacing Assemblies To remove and replace the hard disk drive 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the CPU tray on page 53 2 Disconnect the hard drive cables 3 Using a Torx T10 screwdriver remove the 4 screws that secure the hard drive to the hard drive plate These Screws are accessible through holes the bottom of the tray 4 Reverse this procedure to install the hard disk drive 5 Follow the instructions on the recovery CD to restore your system software CPU Tray Hard Drive Power Cable T 10 Screws 4 62 16900A 16902A and 16903A Service Guide Replacing Assemblies To remove
4. Is the problem still present Yes Call Agilent support 33 5 Troubleshooting Figure 7 Remove power plug for 15 seconds to reset power supplies Apply power Are the fans turning amp power on 16903A Power Troubleshooting Flowchart The power down signal is asserted from CPU or MIB module interface board Try A then B then C Return to 2 between each Check the CPU to MIB cables Check the AUX 5 power Go to To troubleshoot power problems in this chapter Replace the MIB Replace the CPU Let it cool and check Is the No for fan instrument at room failure temperature Possible overtemp shutdown Did fans No come on for a second i Yes The voltage monitor on the module interface board caused the shutdown Disconnect the power supply cables apply power and check voltages Replace the Are power supply defective voltages correct power supply Check for a power short burnt components traces etc Is there Yes Replace the a power damaged short component Replace the MIB 34 16900A 16902A and 16903A Service Guide Is there any boot dialog at any time No Troubleshooting Figure8 16903A Display Troubleshooting Flowchart Try A then B
5. NU T10 Screw 1 S D Keypad Board RRS NSS NSS RU O x 9 8 Keypad S amp S Front Panel Label 16902 75 6 Replacing Assemblies To remove and replace the On Off key 76 CAUTION Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the front panel assembly on page 64 To remove and replace the LCD bracket assembly on page 71 6 Using a Torx T6 screwdriver remove the screw securing the On Off board to the front frame 7 Using a 1 4 inch hex socket remove the shoulder screw securing the On Off board to the front frame 8 Remove replace the keypad and board Wear ESD finger cots or use care not to touch the black pads on keypad and on the keypad board Finger oils can impair contact If necessary carefully clean the contacts using alcohol and lint free swabs or wipes T6 Screw 1 On Off Board Hex Shoulder Screw Front Frame On Off On Off Cable Keypad 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 To remove and replace the power supplies WARNING Hazardous voltages exist on the power supply To avoid electrical shock disconnect the power from the instrument before performing the following procedures After disconnecting the power wait at least six minutes for the capacitors on the power supply board to discharge before servici
6. Cable PCI Socket on Motherboard 16900 02A T 10 Screws 2 CPU Tray 16900835 6 Reverse this procedure to install the PCI board 16903A PCI board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 56 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 To remove and replace the CPU tray on page 53 2 Using a Torx T10 screwdriver remove the 2 screws that secure the PCI board to the CPU tray 3 Disconnect the CPU touch screen cable and PCI cable 4 Use a Torx T10 screwdriver to remove the PCI board retainer 5 Pull the board up to disconnect it from the PCI socket on the motherboard T 10 Screw PCI Cable e PCI Board Retainer Touch Screen Cable PCI Socket on ieee Motherboard PCI Board CPU Tray T 10 Screws 2 16903e1 6 Reverse this procedure to install the PCI board 16900A 16902A and 16903A Service Guide 57 6 Replacing Assemblies To remove and replace optional interface cards 58 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the CPU tray on page 53 Using a T10 screwdriver remove the screw securing the interface card to the rear panel of the CPU tray Swing the plate over the tall slot s out of the way as shown in the following figure Lift the card out of t
7. HW Assisted Memory Cell Test Results 42 16900A 16902A and 16903A Service Guide Troubleshooting 5 Troubleshooting the CD ROM drive v Ensure that Windows recognizes the drive Click the Start button and then click My Computer If the drive is not listed perform a full scan with your antivirus software to check for and remove viruses Viruses can sometimes prevent Windows from recognizing the drive v The CD drive must be parallel to the ground when writing to disk CDs may not be readable in any CD ROM drive if it was not If a CD fails clean it by wiping it off with a clean dry rag and then try again If it continues to fail insert another CD to eliminate the possibility that the original CD is defective The logic analysis system has a DVD ROM amp CD R RW combination drive with the following features 16900A 16902A and 16903A Service Guide 24X Speed CD R Writing 24X Speed CD RW Writing 24X Speed CD ROM Reading 8X Speed DVD ROM Reading Can read DVD RAM DVD R and DVD RW Buffer Under Run Protection Writing Method Disc at Once Session at Once Track at Once Multi Session Fixed Variable Packet Writing 43 5 Troubleshooting To reinstall the operating system Restoring your system software might be necessary for the following reasons Hard drive failure Virus in the system or unstable system Intentional disk clean for example if you are passing th
8. Information included for each part in the list consists of the following Reference designator A Assembly H Hardware MP Mechanical Part W Cable Agilent Technologies part number Total quantity included with the instrument Qty Description of the part 16900A 16902A and 16903A Service Guide 89 7 Replaceable Parts Cover Assembly 90 The cover assembly is the same for the 16900A 16902A and 16903A models MP2 Accessory Pouch 1 T10 Torx Screw 3 16900A 16902A and 16903A Service Guide Front Replaceable Parts 7 nel Assemblies The 16900A supports external displays The 16902A and 16903A have a built in color touch screen display and also support external displays MP9 MP4 Front ID Label Panel Bracket MP16 CDR CD ROM MIB CPU Board T10 Torx Cable MP7 Screw Erori T6 Torx 2 an Screw i T6 Frame NS Tors a Screw 2 MP15 CD ROM Bracket H5 MP14 Shoulder CD ROM B5 Screw Drive oa W4 2 Inverter Cable Screw W7 17 0 Touch Inverter Board w1 Screen MP13 W2 Front Cable ER On Off MP10 Panel LCD Cable Front Assembly Key MP9 TOM Cable 9 0 Cable P anel Front H3 Screw Panel Screw MP25 2 W5 Bracket 1 Touch Screen Keypad Controller W3 Cable a Board CDR 16 MIB CPU W6 CD ROM Cable MP24 LCD 586 2 Cable ID Label STEEN
9. MP8 Front Frame 5 Shoulder CD ROM MP12 Bracket OnlOff Board MPAL CD ROM H2 Drive H3 e MP13 T10 Torx On Off Board Screw 1 Key W2 Cursor Cable Keypad MP21 18 mm Knob Q 20 MP 12 mm Front Panel Label Knob 3 iode tront paria 16900A 16902A and 16903A Service Guide 91 7 Replaceable Parts Table 3 Replaceable parts for the cover and front panel assemblies Ref Agilent Technologies Part Des Number Oty Description Al 16900 68707 1 Cover includes side feet and grommets for pouch H1 0515 0372 3 Screw H2 0515 0658 5 Screw H3 0515 1246 6 Screw H4 0515 0365 6 Machine screw 5 16900 22401 1 Shoulder screw MP1 01680 41002 4 Side foot not shown MP2 01680 68702 1 Accessory pouch MP3 16600 68707 1 Handle includes screws MP4 16900 94301 1 ID label 16900A MP5 16902 94301 1 ID label 16902A MP6 16903 94300 1 ID label 16903A MP7 16900 40201 1 Front frame MP8 16902 40201 1 Front frame MP9 16900 01204 1 Front panel bracket MP10 16902 66501 1 Front panel board MP11 16902 94302 1 Front panel label MP12 16900 66505 1 On Off board assembly MP13 01690 41901 1 On Off key MP14 0950 4549 1 Disk drive DVD ROM CD R RW slot feed MP15 16900 01200 1 CD ROM bracket MP16 16900 66509 1 CD ROM board MP17 0950 4068 1 Inverter dual backlight board 12 V MP18 16902 47401 1 Keypad MP19 16902 66502 1 Keypad board 92 16900A 16902A and 16903A Service Guide Tab
10. 16902A and 16903A Service Guide Replaceable Parts 7 Table 4 Replaceable parts for the 16900A and 16902A frames Ref Agilent Technologies Part Des Number Qty Description see page 100 1 Power cords 0960 2422 1 Option 014 1 Gbit low profile LAN card 16900 97003 1 Installation guide 16900 92000 1 Installation poster A2 16900 60010 1 Card cage assembly A3 16900 60201 1 Rear panel assembly A4 16900 60101 1 Deck assembly H1 0515 0372 Screw round head H6 0515 2032 7 Screw H7 0515 2143 2 Screw M4 X 0 7 6MM LG PAN HD Torx T20 H8 0515 1349 4 Screw rear foot H9 2360 0462 4 Screw with washer H10 3030 1245 4 Screw shoulder 6 32 THD 0 20 IN LG H11 0380 1858 6 Standoff hex 312 IN LG 4 40 THD H12 0515 0430 15 Screw T10 Torx H13 0515 4768 4 Screw panel M2 5 X 0 45 8MM LG H14 0515 1403 2 Screw special M4 X 0 7 6MM LG 90 DEG FLH HD H15 1250 2075 4 Nut RF connector 9 16 inch hex 1 2 28 MP26 0950 4461 1 Power supply 700 W 6 outputs MP27 16900 01207 1 Bracket for 700 W supply MP28 16900 66506 1 Module interface board MIB MP29 16900 00100 1 Chassis MP30 01680 04701 1 Tilt stand MP31 54810 61001 4 Foot bottom MP32 54110 40502 4 Foot rear MP33 16900 45002 1 Module ejector lever assembly left MP34 16900 45003 1 Module ejector lever assembly right 16900A 16902A and 16903A Service Guide 95 7 Replaceable Parts Table 4 Replaceable parts for the 16900A and 16902A frames continued Ref Agilent Technolo
11. 16902A and 16903A Service Guide 47 6 Replacing Assemblies To prepare the instrument for disassembly 48 Do this procedure before doing any disassembly procedure on the instrument 1 Close the Agilent Logic Analyzer application software 2 Power off the system using one of the methods explained below 3 Remove the power cord 4 Move the instrument to a static safe work environment Hazardous voltages exist on the power supply To avoid electrical shock disconnect the power from the instrument before performing the following procedures After disconnecting the power wait at least six minutes for the capacitors on the power supply board to discharge before servicing the instrument CAUTION Damage can occur to electronic components if you remove or replace assemblies when the instrument is on or when the power cable is connected Never attempt to remove or install any assembly with the instrument on or with the power cable connected To power off the system There are several ways to power off the logic analysis system When powering off the logic analysis system wait until the fans stop turning about 15 seconds before turning the logic analysis system back on This ensures that internal circuitry restarts in a known state Using the Windows Shutdown On the logic analysis system desktop click Start Shut Down or if you are running remote desktop click Start Settings Windows Security Shut Down Th
12. 16902A Application Troubleshooting Flowchart Check all cables to front panel assembly Check all cables to CPU motherboard Check all cables to IO board Check PCI bridge board is fully seated Reseat as necessary Replace the IO board Replace the MIB board Replace the PCI bridge board 5 31 5 Troubleshooting To use the16903A flowcharts Flowcharts are the primary tool used to isolate defective assemblies The flowcharts refer to other tests to help isolate the trouble The circled references on the charts indicate connections with the other flowcharts or other parts within the same flowchart A circled alpha references connections within the flowchart Start your troubleshooting at the top of the first flowchart Figure 6 on page 33 32 16900A 16902A and 16903A Service Guide F Troubleshooting igure6 16903A Troubleshooting Flowchart Oe Attach keyboard mouse and power cord Remove all user installed PCI cards see To remove amp replace optional interface cards in chapter 7 Apply power 16900A 16902A and 16903A Service Guide Are the fans turning amp power on Is the display screen readable the instrument finish booting to windows Does the logic analyzer application start Run the module self tests Do the self tests pass No Go to module troubleshooting
13. 4 Select operating system menu 5 Windows XP boot screen blue 6 Checking file system text 7 Welcome to Windows login screen Does the instrument reach 3 in the boot sequence Enter BIOS setup and Failed BIOS pom A gt reset to default Try A then B Replace the CPU therb Return to 1 between Li boa dade each Check the hard drive power and signal cables Reseat RAM DIMMs drive Oz Run the recovery disk he instrumen reach 5 in the boot sequence and is the power switch LED steady NO Failed OS boot from hard Try te OF then Return to 4 Replace the hard drive Q beween each Oz and run the recovery disk Is the power LED steady on Does the instrument reach 7 in the boot equence Failed the system file check Run the recovery disk Yes Blank screen display problem due to the display mode Reboot gt At Select OS menu press F8 to open advanced startup Select enable VGA mode then Continue 30 16900A 16902A and 16903A Service Guide Figure 5 16900A 16902A and 16903A Service Guide O bs Try each of the following steps in order Return to 1 between each Reinstall the logic analyzer application Troubleshooting 16900A and
14. 5V If it does not replace the power supply 5 Apply power and return to 16900A and 16902A Power Troubleshooting Flowchart on page 28 16900A 16902A and 16903A Service Guide 39 5 Troubleshooting To check the power supply voltages WARNING Hazardous voltages exist on the power supply This procedure is to be performed by service trained personnel aware of the hazards involved such as fire and electrical shock 1 Turn off the instrument using one of the methods descirbed in To power off the system on page 48 2 Disconnect the instrument s power cord move the instrument to a static safe work environment then remove the cover instructions in To remove and replace the cover on page 52 3 Disconnect all cables from the power supply except the power cable 4 Reconnect the instrument s power cord then apply power to the instrument 5 Using a digital volt meter measure the power supply dc voltages 6 Referring to the graphics that follow note problems with the power supply then return to the flowchart 16900A and 16902A power supplies The 16900A and 16902A systems have two power supplies One is 700 watts and the other is 500 watts Use the following graphics when measuring the voltages 700 watt power supply voltages 40 16900A 16902A and 16903A Service Guide T
15. 7 Replaceable Parts Power Cables and Plug Configurations This instrument is equipped with a three wire power cable The type of power cable plug shipped with the instrument depends on the instrument model number country of destination Table 6 Power Cables and Plug Configurations Cable Plug Orientation Cable Cable Plug Type male connector PartNo female connector Length Color Country 16900 02A Opt 900 8120 5334 IEC 320 1 C15 90 2 5 meters Black United Kingdom 16903A Opt 900 8120 1703 IEC 320 1 C13 90 2 3 meters Mint Cyprus Nigeria Gray Zimbabwe 250V Singapore Malaysia 16900 02A Opt 901 8120 5393 IEC 320 1 C15 90 2 5 meters Black Australia New 16903A Opt 901 8120 0696 IEC 320 1 C13 90 2 2 meters Gray Zealand 250V 16900 02A Opt 902 8120 5394 IEC 320 1 C15 90 2 5 meters Black East and West 16903A Opt 902 8120 1692 IEC 320 1 C13 90 2 0 meters Mint Europe Saudi Gray Arabia unpolarized 250V in many nations 16900 02A Opt 8120 5395 IEC 320 1 C15 90 2 5 meters Black United States 903 8120 1521 IEC 320 1 C13 90 2 2 meters Jade Canada Mexico 16903A Opt 903 Gray Philippines Taiwan 125V 16900 02A Opt 906 8120 5397 IEC 320 1 C15 90 2 5 meters Black Switzerland 16903 Opt 906 8120 2296 IEC 320 1 C13 90 2 0 meters Gray 250V 16900 02A Opt 912 8120 5398 IEC 320 1 C15 90 2 5 meters Black Denmark 16903A Opt 912 8120 2957 IEC 320 1 C13 90 2 0 meters Gray 250V 16900 02A Opt 917 8120 5399
16. Assemblies 16900 Series Disassembly Assembly 46 Replacement Strategy 46 Tools Required 46 To save the license file 47 To obtain the licensing host ID 47 To prepare the instrument for disassembly 48 To power off the system 48 To remove and replace optional modules or filler panels 50 To remove and replace the cover 52 To remove and replace the CPU tray 53 16900A and 16902A CPU tray 53 16903A CPU tray 54 To remove and replace the PCI board 56 16900A and 16902A PCI board 56 16900A 16902A and 16903A Service Guide 16903A PCl board 56 To remove and replace optional interface cards 58 To remove and replace the 1 0 board 60 16900A and 16902 1 0 board 60 16903A 1 0 board 61 To remove and replace the hard disk drive 62 To remove and replace the motherboard 63 To remove and replace the front panel assembly 64 To remove and replace the CD ROM Drive 65 To remove and replace the touch screen controller board 66 To remove and replace the backlight inverter board 68 To remove and replace the front panel interface board 69 To remove and replace the LCD bracket assembly 71 To remove and replace the touch screen display assembly 72 To remove and replace the keypad and keypad board 74 To remove and replace the On Off key 76 To remove and replace the power supplies 77 16900A and 16902A power supplies 77 16903A power supply 78 To remove and replace the card cage and fans 80 16900A and 16902A card cage and fans 80 To
17. IEC 320 1 C15 90 2 5 meters Black Republic of South 16903A Opt 917 8120 4600 IEC 320 1 C13 90 2 0 meters Mint Africa India Gray 250V 100 16900A 16902A and 16903A Service Guide Replaceable Parts 7 Table 6 Power Cables and Plug Configurations continued Cable Plug Orientation Cable Cable Plug Type male connector PartNo female connector Length Color Country 16900 02A Opt 918 8120 5400 IEC 320 1 C15 90 2 5 meters Black Japan 16903A Opt 918 8120 4754 IEC 320 1 C13 90 2 3meters Gray 100V 16900 02A Opt 919 8121 0955 IEC 320 1 C15 90 2 5meters Black Israel 16903A Opt 919 Rea 8120 6799 IEC 320 1 C13 90 2 0 meters Flint Gray 250V is 16900 02A Opt 920 8121 8390 IEC 320 1 C15 Straight 2 5 meters Black Argentina 16903A Option 920 KE 8121 6871 IEC 320 1 C13 90 2 0 meters Flink A SN Gray 250V nc 16900 02A Opt 921 8120 8389 IEC 60320 1 C15 2 5 meters Black Chile 16903A Opt 921 8120 6979 Straight 4 5 meters Flint IEC 60320 1 C13 90 Gra B VERS 90 16900 02A Opt 922 8120 0953 320 1 C15 90 2 5 meters Black People s Republic of 16903A Opt 922 Q7 8120 8377 IEC 320 1 C13 90 2 2 meters Flint China Q 16900 02A Opt 927 8121 0671 IEC 60320 1 C15 2 5 meters Black Brazil Thailand 16903A Opt 927 Gr 8120 8871 Straight 2 3 meters Flint QRQ IEC 60320 1 C13 Gray x Straight Part number shown for plug is industry identifier for plug only Number sho
18. Troubleshooting To troubeshoot power problems 38 The power LEDs on the frame help to figure out why a frame has powered itself down For safety purposes when any of these LEDs are lit the frame will not power back up until the power cord has been disconnected and then reconnected p DUE View Dc _ cens through i J these holes 16900629 Internal location The colors indicate Green 500 W power supply failure Yellow 700 W power supply failure Red fan failure or overtemp If the system warns you it is powering down before it powers down it is a fan overtemp problem If it just powers down it is a power supply problem On the 16900A and 16902A frames if the lights do not come on and if the system powers up momentarily when you plug it in make sure the power buttons haven t become jammed or stuck in the pushed in position 1 Turn off the instrument using one of the methods descirbed in To power off the system on page 48 2 Disconnect the power cord move the instrument to a static safe work environment then remove the cover 16900A 16902A and 16903A Service Guide Troubleshooting 5 instructions in To remove and replace the cover on page 52 3 Ensure that the CPU power cable and reset cables are seated properly Cable 16900 02A CPU Tray 16903A 4 Using a voltmeter ensure the AUX 5V power on the MIB measures
19. Video Display DC FANS 12V to 24V Digital Video RS232 23 3 3V 5V 12V Keypad Board CDROM IDE Bus RS232 Front Panel On Off 12 1 Touch Screen Grid Grid Scan Secondary PCI Bus Trigger In Bridge GPIO 3 3V 5V Board Clock In Target Control Rear Panel Signals PCI Board IDE BUS CDROM CPU On Off Reset CPU POWER CONNECTOR Hard Disk Drive Primary PCI Bus POWER IDE BUS CPU MOTHERBOARD CPU subsystem The CPU subsystem includes CPU board more on page 123 Disk drives more on page 124 Power supply more on page 124 PCI board For more information on the 16903A PCI board go to page 124 Module interface board MIB The MIB subsystem block diagram shown here includes Module bus FPGA more on page 125 Video circuit more on page 125 O FPGA more on page 125 PLD more on page 126 16900A 16902A and 16903A Service Guide 121 122 Theory of Operation Voltage rail monitor more on page 126 Overtemp monitor more on page 127 Fan control more on page 127 OVERTEMP POWER SWITCH 3 MONITOR CONNECTOR VOLTAGE RAIL POWER SENSE F a H8 3 MONITOR CONNECTOR PLD CPU PWR
20. and replace the motherboard 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the CPU tray on page 53 2 Disconnect the following cables Power Reset CD ROM 3 Remove the 6 Hex Studs securing the connectors to the rear panel of the CPU tray 4 Using a Torx T10 screwdriver remove the 7 screws that secure the motherboard to the bottom of the CPU tray T10 Screws CD ROM T10 2 e Cable Screws 3 Connector Power Cable Reset Connector kR Cable Bracket T10 5 Motherboard Representative drawing Screws 2 Yours may look different Hex Studs 6 5 Reverse this procedure to install the CPU tray 16900A 16902A and 16903A Service Guide 63 6 Replacing Assemblies To remove and replace the front panel assembly 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 2 Disconnect the following cables from the module interface board Front panel cable 16902 03A only Power On Off cable CD ROM cable 3 Using a Torx T10 screwdriver remove 4 screws that secure the front panel to the chassis 4 Remove replace the front panel assembly 16900 T10 16902 03A T10 Chassis Module Screws 4 Chassis Module Screws 4 Interface uid Interface On Off Front Cable Power 5S Panel On Off
21. are configured by the user as either READ or WRITE lines and are used for basic system monitoring and control for example driving a target system reset line or monitoring system power on Trigger IN OUT These two BNCs function as an external trigger out and arm in signaling between frames or other test equipment The TRIGGER OUT is a simple 3 state LVTTL 50 line drive circuit TRIGGER IN ARM is complicated by the need to handle variable threshold levels The circuit consists of a programmable 12 bit DAC and comparator This combined with a level shift and divide circuit allows for a 5 V input range 200 mV minimum swing and 50 mV threshold steps 16900A 16902A and 16903A Service Guide 127 128 Theory of Operation Clock IN This BNC input is specifically for a 10 MHz clock signal from an oscilloscope or other source The signal is AC coupled and passed through a 10X multiplier part low jitter and then fed to the FPGA as one of the 100 MHz clock source choices Using this input allows two measurement instruments to run on the same time base and maintain correct time alignment over long aquisitions Calibration OUT This BNC output is a low frequency 49 KHz signal driven from a LVTTL 50 line driver It is used by an external Time Correlation Fixture to simultaneously trigger multiple frames and oscilloscopes This is then used with a software averaging program to closely correlate the trigger point across instrume
22. bottom MP32 54110 40502 4 Foot rear MP37 16900 68501 1 Fan assembly MP39 16900 01210 1 CPU reset bracket MP40 0960 2252 1 Motherboard Micro ATX 1 GHz CPU MP43 0950 4590 1 Hard drive 80 GB ATA Ultra 100 MP44 16900 64101 1 Hard drive plate assembly MP45 1600 1707 1 Short ISA slot cover MP46 1400 2120 1 2 ISA slot cover MP47 16700 40501 0 3 Module filler panel 98 16900A 16902A and 16903A Service Guide Replaceable Parts 7 Table 5 Replaceable parts for the 16903A frame continued Ref Agilent Technologies Part Des Number Qty Description MP48 16903 66502 1 Module interface board MIB MP49 16903 45001 1 Module ejector lever assembly left MP50 16903 45002 1 Module ejector lever assembly right MP51 16903 66501 1 PCI board assembly MP52 16903 66503 1 1 0 board assembly MP53 0950 3402 1 Power supply 700 W MP54 16903 41201 1 Retainer PCI board W3 16900 61603 1 Cable CDR MIB CPU W11 16900 61611 1 Cable touch screen RS 232 W12 16903 61605 1 CPU reset cable W13 16600 61611 1 Cable hard drive power W14 16900 61601 1 Cable hard drive W15 16903 61600 1 Motherboard power cable W17 16900 61606 1 Cable CD ROM W18 16700 61604 1 Cable power W19 16700 61603 1 Cable sense 20 16700 61609 1 Cable 22 position W21 16700 61606 1 Cable 24 position W22 16700 61602 1 Cable power supply W23 16700 61621 1 Line switch assembly W24 16903 61602 1 Cable 1 0 16900A 16902A and 16903A Service Guide 99
23. connect multiple frames If you need to make time correlated measurements with more logic analysis channels than can be installed into a single logic analysis system frame you can connect multiple 16900A and 16902A frames together Refer to the Installation Guide that came with your instrument for Multiframe Pro configurations To get the most up to date installation guide Go to www agilent com e Search for 16900A Logic Analysis System Look under Manuals and Guide To install measurement modules For general information on installing a measurement module into the mainframe refer to the Installation Guide that came with your instrument To get the most up to date installation guide Go to www agilent com Search for 16900A Logic Analysis System e Look under Manuals and Guide To clean the instrument If the instrument requires cleaning 1 Remove power from the instrument 2 Clean the external surfaces of the instrument with a soft cloth dampened with a mixture of mild detergent and water 3 Make sure that the instrument is completely dry before reconnecting it to a power source 16900A 16902A and 16903A Service Guide 17 2 Preparing for Use 18 16900A 16902A and 16903A Service Guide Agilent 16900A 16902A and 16903A Logic Analysis System Service Guide 3 Testing Performance Testing Performance 20 To perform the power up tests 21 ES Agilent Technologies 3 Testing Performance Testing Perfor
24. cover back and up to remove 22 Screws 5 Reverse this procedure to replace the cover CAUTION When reinstalling the handle assembly ensure that the screws are torqued to 2 372 Newton meters 21 inch pounds so that they do not work themselves loose 52 16900A 16902A and 16903A Service Guide Replacing Assemblies To remove and replace the CPU tray 16900A and 16902A CPU tray 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 2 Disconnect cables from the module interface board TS Sy S NS SN g RZ s vs N i W lt AS d RZ D d S GE tot Module Interface f o ec CD ROM cable Se Se CPU power 16900825 3 Remove 7 screws from the back of the CPU tray using a Torx T10 screwdriver 16900A 16902A and 16903A Service Guide 53 6 Replacing Assemblies T10 screws 7 16900235 4 Use the tray levers to pry and disconnect the CPU board from the module interface board and slide the tray out being careful not to catch the loose cables on anything Module Interface Board 16900827 Tray lever Post and alignment hole Connectors 5 Reverse this procedure to install the CPU tray 16903A CPU tray 1 Perform previous procedures To prepare the instrument for disass
25. display 3 exchange assemblies 88 exploded view 16900 02A frames 94 16903A frame 97 cover 90 front panel 91 F features 3 flowcharts troubleshooting 26 32 front panel assemblies 91 front panel interface board removal 69 H host ID 47 humidity 12 l 0 board removal 60 0 board 16903A 127 D 47 identification 47 input output 16903A 127 install measurement modules 17 instrument identification 47 interface board 69 inverter board removal 68 16900A 16902A and 16903A Service Guide K keypad and board removal 74 L LEDs 38 license file saving 47 M measurement modules 17 MIB 16900 02A 111 MIB 16903A 125 module calibration 24 module interface board 111 module interface board removal 83 module interface board 16903A 125 modules measurement 17 motherboard removal 63 multiple frames 17 0 operating characteristics 12 system 44 theory 104 operational accuracy 24 P parts replacement 88 PCI board removal 56 PCI board 16900 02A 110 PCI board 16903A 124 power LEDs 38 problems 38 requirements 12 power supply voltages 40 power on 16 problem solving 26 procedure assembly 46 R recovery 44 reinstall operating system 44 129 Index removing backlight inverter 68 backlight inverter board 68 front panel interface 69 front panel interface board 69 1 0 board 60 keypad and board 74 MIB 83 module
26. for Modules The individual modules that plug into the 16900 series mainframes may require calibration operational accuracy calibration or adjustments Refer to the Testing Performance chapter in the service manual for the module 16900A 16902A and 16903A Service Guide Agilent 16900A 16902A 16903A Logic Analysis System Service Guide 5 Troubleshooting Troubleshooting 26 To use the16900A and 16902A flowcharts 26 To use the16903A flowcharts 32 To troubeshoot power problems 38 To check the power supply voltages 40 To run the self tests 42 Troubleshooting the CD ROM drive 43 To reinstall the operating system 44 ES Agilent Technologies 25 5 Troubleshooting Troubleshooting CAUTION This chapter helps qualified service personnel troubleshoot the logic analysis system to find defective assemblies The troubleshooting consists of flowcharts self test instructions and tests This information is not intended for component level repair If you suspect a problem start at the top of the first flowchart During the troubleshooting instructions the flowcharts will direct you to perform other tests The other tests are located in this chapter after the flowcharts The service strategy for this instrument is the replacement of defective assemblies This instrument can be returned to Agilent Technologies for all service work including troubleshooting Contact your nearest Agilent Technologies Sales Offic
27. for disassembly on page 48 To remove and replace the cover on page 52 1 Disconnect the power cable from the power supply 2 Using a Torx T10 screwdriver remove the 2 screws securing the power socket to the frame and the 1 screw to the ground wire 3 Reverse this procedure to replace Line Filter Assembly 169034 T10 Screw Ground Wire round Wire T10 Screws 2 T10 Screws 2 82 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 To remove and replace the module interface board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the CPU tray on page 53 To remove and replace the front panel assembly on page 64 To remove and replace the power supplies on page 77 To remove and replace the card cage and fans on page 80 2 Ensure that all cables are disconnected from the module interface board 3 Using a Torx T10 screwdriver remove the 4 screws securing the card cage to the front strut T10 Screws 4 16900A 16902A and 16903A Service Guide 83 6 Replacing Assemblies 84 4 Using a Torx T10 screwdriver remove the 6 screws securing the front strut to the chassis 5 Using a Torx T10 screwdriver remove the 8 screws securing the module interface board to the front strut
28. 0000000000000000 0000000000000000000000 0000000000000000000000 0000000000000000000000 55 867 cm 21 995 in 000000000 000000000 000000000 000000000 000000000 000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 000000000000 0000000000000000000000 0000000000000000000000 0000000000000000000000 0000000000000000000000 0000000000000000000000 0000000000000000000000 25 360 cm 9 984 in 46900 dimen generic 16900A 16902A and 16903A Service Guide 13 1 General Information 14 16900A 16902A and 16903A Service Guide Agilent 16900A 16902A 16903A Logic Analysis System Service Guide 2 Preparing for Use To inspect the logic analysis system 16 To apply power 16 To connect multiple frames 17 To install measurement modules 17 To clean the instrument 17 ES Agilent Technologies 2 Preparing for Use To inspect the logic analysis system 1 Inspect the shipping container for damage If the shipping container or cushioning material is damaged keep them until you have checked the contents of the shipment and checked the instrument mechanically and electrically Hazardous voltages exist in this instrument To avoid electrical shock do not apply power to a damaged instrument To apply power 16 Check the supplied accessories Accessories supplied with t
29. 0A 16902A and 16903A Service Guide Theory of Operation 8 shortcut on the Windows desktop and or the Windows start menu The GUI application may auto run when a user logs onto the machine The logic analyzer device drivers communicate directly with all of the hardware This includes the frame hardware and all modules plugged into the frame All other Agilent software in the system communicates with the drivers in order to access the hardware Therefore missing drivers look like missing hardware to the Agilent software The frame power button LED will flash when the frame is first powered on and become steady once the frame drivers have loaded A flashing power button LED should indicate 1 The frame is in the middle of a power up or power down sequence 2 The frame hardware was not recognized by the PnP system 3 The frame drivers are missing Once the Windows kernel and the system drivers are loaded a variety of Windows services background processes are started automatically by the system These services are like UNIX Linux daemons They run silently in the background in order to provide system services They run before any user has logged onto the system If the logic analyzer product is installed on the system a logic analyzer service called Agilent Logic Analysis should be running The logic analyzer service carries the following general responsibilities System manager for the local frame Communicates with lo
30. 110 Torx a Hard _ Screw 2 Drive NMPS 17 Plate MP46 15 CD ROM PCI D A T Power Cable Deck Fable N Panels Assembly H9 0 5 T10 Torx PCI Screw 4 Filer Panels _ H6 7 T p a Screw 2 MP54 PCI Board Retainer CPU Display H11 t Standoff Cable Screws MP51 PCI Boord 16900A 16902A and 16903A Service Guide ue Replaceable Parts 7 modular with slots for 3 Power Supply Cable Mogula Interface Boord MP29 Power Cable rj MP30 Hil gto Stand f f J Line _ Filter Assembly 97 7 Replaceable Parts Table5 Replaceable parts for the 16903A frame Ref Agilent Technologies Part Des Number Oty Description see page 100 1 Power cords 0960 2422 1 Option 014 1 Gbit low profile LAN card 16900 97003 1 Installation guide 16900 92000 1 Installation poster A2 16900 60010 1 Card cage assembly 4 16900 60101 1 Deck assembly Ab 16903 60203 1 Rear panel assembly 16903A H9 2360 0462 4 Screw with washer H10 3030 1245 4 Screw shoulder 6 32 THD 0 20 IN LG H11 0380 1858 6 Standoff hex 312 IN LG 4 40 THD H12 0515 0430 15 Screw T10 Torx H13 0515 4768 4 Screw panel M2 5 X 0 45 8MM LG H14 1250 2075 4 Nut RF connector 9 16 inch hex 1 2 28 MP27 16900 01207 1 Bracket for 700 W supply MP29 16900 00100 1 Chassis MP30 01680 04701 1 Tilt stand MP31 54810 61001 4 Foot
31. 6 Align the 6 long pins on the LCD bracket with the guide pins sticking through the keypad board 7 Press on the LCD bracket assembly firmly to ensure the LCD display is attached to the touch screen 8 Using a Torx T10 screwdriver screw the 6 screws into the LCD bracket to secure it to the front frame 16900A 16902A and 16903A Service Guide 73 6 Replacing Assemblies To remove and replace the keypad and keypad board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the front panel assembly on page 64 remove and replace the front panel interface board on page 69 To remove and replace the LCD bracket assembly on page 71 2 Remove the knobs from the front of the frame 3 Using a Torx T10 screwdriver remove the 1 screw securing the keypad board to the front frame 4 Remove the board and keypad from the frame CAUTION Wear ESD finger cots or use care not to touch the black pads on keypad and on the keypad board Finger oils can impair contact If necessary carefully clean the contacts using alcohol and lint free swabs or wipes 5 Reverse this procedure to install the keypad and keypad board 74 16900A 16902A and 16903A Service Guide Cursor Knob 18 mm Knobs 2 Z 12 mm Knobs 3 16900A 16902A and 16903A Service Guide Replacing Assemblies
32. 900A 16902A and 16903A Service Guide Theory of Operation 8 configured when the keypad board is assembled Connector P1 routes the RS232 microcontroller data to the front panel interface board The front panel interface board provides a connection point for the three subsystems of the front panel assembly All front panel connections are routed to the Module Interface Board through the one connector J1 that includes keypad board communication flat panel display communication and touch screen communication If the cable to J1 is unconnected the system will automatically know there is no front panel assembly and will disable circuitry The connector J2 is used as the connection to the keypad board The connectors J3 and J4 are connected to a Mitsubishi 12 1 SVGA AA121LS01 TFT LCD 800x600 display Connector J3 provides the data path back to a Chips and Technologies 65550 Video Adapter Connector J4 is used to provide the high voltage needed to light the display backlight This high voltage is generated using a power inverter board which is mounted on the front panel interface board This power inverter board is a Taiyo Yuden LS720A DC AC 1500 VRMS The connector J5 is used to connect to a touch screen controller board This touch screen controller board is mounted on the front panel interface board and is a 3M SC4 Mounted in front of the flat panel display is a touch screen grid connected directly to the touch screen controller Th
33. A Service Guide Troubleshooting 5 Figure3 16900 and 16902A Display Troubleshooting Flowchart Check all cables to the front panel assembly Check all cables to the CPU motherboard Ensure the PCI bridge board is fully seated Reseat as necessary Is there any boot dialog at any time Proceed to boot up Is the troubleshooting Which 16900A display screen Yes Reseating frame are you readable on a known fixed the using good external problem monitor 16902A A P Connect an external monitor NOTE press and hold Touch pois D off to switch between the internal and external monitors Login to Windows and check display settings Set the default to display 1 internal display at 800x600 pixels 16 bit color depth Is the display screen readable on the external monitor Replace the CPU motherboard screen completely Try A then B Return to 1 between each Replace the backlight A inverter board Replace the LCD panel Replace the PCI bridge lt board 16900A 16902A and 16903A Service Guide 29 5 Troubleshooting Figure4 16900 and 16902A Boot UpTroubleshooting Flowchart TYPICAL BOOT SEQUENCE DISPLAY 1 Boot text 2 Agilent Technologies text and logo 3 Intel boot agent text
34. Agilent 16900A 16902A and 16903A Logic Analysis System Service Guide RE Agilent Technologies Notices Agilent Technologies Inc 2004 No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or transla tion into a foreign language without prior agreement and written consent from Agi lent Technologies Inc as governed by United States and international copyright laws Trademark Acknowledgements Windows and MS Windows are U S regis tered trademarks of Microsoft Corporation Windows XP is a U S registered trademark of Microsoft Corporation Manual Part Number 16900 97010 Edition Second edition June 2007 Available in electronic format only Agilent Technologies Inc 1900 Garden of the Gods Road Colorado Springs CO 80907 USA Warranty The material contained in this docu ment is provided as is and is sub ject to being changed without notice in future editions Further to the max imum extent permitted by applicable law Agilent disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of merchantability and fitness for a par ticular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connection with the furnishing use or perfor mance of this document or of any information contai
35. CI 33 MHz core and the 16 bit interface to the backplane Video circuit The second PCI device on the PCI board is the Chips and Technology 65550 Video Adapter This device directly drives the LCD flat panel display Note both the 16900A and 16902A use the same PCI board When a front panel interface board is not included in the system the 65550 Video Adapter is automatically held in reset and will not show up as a PCI device in the Windows hardware map Disconnecting the cable from the Module Interface Board to the Front Panel Interface Board will have the effect of holding the 65550 Video Adapter in reset PLD Programmable parts on the PCI board are the JTAG CPLD the 16 bit backplane FPGA and the high speed serial FPGA The JTAG CPLD is used to program the FPGAs and is loaded using a Xilinx programming cable When the CPLD is empty or not programmed the PCI board will inhibit loading of the Windows operating system 16900A 16902A and 16903A Service Guide Theory of Operation 8 16900A 16902A MIB Module Interface Board Top level function The MIB is primarily an interconnect and power distribution board It performs some low level system monitoring and control functions such as power ON OFF PLD The PLD is the low level system control element powered from the AUX 5 V rail and continuously ON It logically controls the soft power ON OFF through signal lines to the CPU and power switch monitoring It physically turns
36. Cable Cable Cable Alignment Alignment Pin Pin 16900241 5 Reverse this procedure to install the front panel assembly 64 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 To remove and replace the CD ROM Drive 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the front panel assembly on page 64 2 Using a Torx T10 screwdriver remove the 2 screws securing the drive to the front panel 3 Using a Torx T6 screwdriver remove the 2 screws securing the drive to the bracket 4 Using Torx T6 screwdriver remove the 2 screws securing the CD ROM board to the drive and remove the board CD ROM board T6 Screws 2 Bracket T6 Screws 2 Front Panel T10 Screws 2 5 Reverse this procedure to reassemble and install the drive 16900A 16902A and 16903A Service Guide 65 6 Replacing Assemblies To remove and replace the touch screen controller board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the front panel assembly on page 64 2 Place the front panel assembly face down and disconnect the cables from the touch screen controller board as shown 3 Using a Torx T6 screwdriver remove the 2 screws securing the board to the front panel board Touch Screen 2 Controller Boa
37. Characteristics 12 Dimensions 13 x Agilent Technologies 1 General Information Electrical and Operating Environment Characteristics The following operating characteristics are not specifications but are typical operating characteristics for the Agilent 16900 series logic analyzers Electrical Characteristics Power Requirements 16900 902 115 230 Vac 20 48 66Hz 1300W Max Frame 16903A 115 230 Vac 20 48 66Hz 900W Max The line voltage is autodetected by the instrument CAT II Line voltage in appliance and to wall outlet Pollution degree 2 Environmental Characteristics Temperature Altitude Humidity Vibration Weight Storage 12 For indoor use only Instrument 16900A amp 16902A 0 to 40 C 32 to 104 F Instrument 16903A 0 to 50 C 32 to 122 F Disk Media 10 to 40 C 50 to 104 F Probes cables 0 to 65 C 32 to 149 F Reliability is enhanced when operating the instrument within a temperature of 20 C to 35 C 68 F to 95 F 3 000 m 10 000 ft Relative humidity 8 to 80 at 40 C 104 F Avoid sudden extreme temperature changes which could cause condensation on the circuit board Reliability is enhanced when operating the instrument within a noncondensing humidity range of 20 to 80 Condensation within the instrument can cause poor operation or malfunction Provide protection against internal condensation
38. GUI application software self tests can be run by clicking on the Help menu within the application and then selecting Self Test 16900A 16902A and 16903A Service Guide 119 120 Theory of Operation All self tests are consolidated into a single self test dialog The self test dialog contains a pane which allows the user to select the test suite and a pane which allows the user to select a specific test within that suite or all of the tests The tests can be run once or repetitively Each card will have its own suite of tests The frame hardware itself has a suite called System At the bottom of the self test dialog is a results pane The reporting level how verbose the tests are can be controlled using a slider bar at the top of the dialog At the very least each test should report that it is running and what the final status of each test was pass or fail Increasing the reporting level and re running certain tests may help isolate a specific hardware failure in the event that a test fails 16903A Block Level Theory The block level theory includes the theory of operation of the logic analysis system in terms of the major subsystems including CPU subsystem PCI board MIB module interface board T O input output board Front panel assembly 16900A 16902A and 16903A Service Guide Theory of Operation 8 Module Interface Board Front Panel 12 1 Flat Interface Board Panel LCD Digital
39. Operating random vibration 0 500 Hz 10 minutes per axis 0 3 g rms Non operating random vibration 0 500 Hz 10 minutes per axis 2 41g rms and swept sine resonant search 0 500 Hz 0 75g 5 minute resonant dwell at 4 resonances per axis Model Max Net Max Shipping 16900A 16 kg 35 2 Ibs 24 6 kg 54 2 Ibs 16902A 17 2 kg 37 8 lbs 25 8 kg 56 8 Ibs 16903A 14 5 kg 32 0 lbs 23 2 kg 23 2 Ibs The weight of modules ordered with mainframes will add 0 9 kg 2 0 Ib per module Store or ship the instrument in environments within the following limits Temperature 40 C to 75 C 40 F to 167 F Humidity up to 90 at 65 C 149 F Altitude up to 3 000 meters 10 000 feet Protect the system from temperature extremes which cause condensation on the instrument 16900A 16902A and 16903A Service Guide Dimensions General Information 1 Trigger In The Trigger In connector is 5V Max pk and DC CAT I line isolated Clock In The Clock In connector is 5 5V Max pk and DC CAT I line isolated The following figure provides dimensions for the 16900 series logic analyzer mainframes in centimeters and inches 44 121 cm 17 371 in c 9 eal 000000000000 000000000 000000000000 000000000 000000000000 000000000 0000000000000000000000 0000000000000000000000 0000000000000000000000 0000000000000000000000 0000000000000000000000 000000
40. RIDGEIC Lg _ PLD CPU COM2 connector MODULE FPGA MIB BOARD CONNECTOR VIDEO IC Rear panel ROM RAM power switch 16900A 16902A and 16903A Service Guide 105 106 Theory of Operation Module interface board MIB The following MIB subsystem block diagram includes PLD more on page 111 Voltage rail monitor more on page 111 Overtemp monitor more on page 111 Fan control more on page 111 OVERTEMP POWER SWITCH m F4S 1 MONITOR CONNECTOR VOLTAGE RAIL POWER SENSE 4 MONITOR CONNECTORS 2 PLD TO IO BOARD c CONNECTOR a IDE BUS CPU POWER CONNECTOR TOPWRPLANES lt CONNECTOR CDRW DRIVE POWER CONNECTOR TOPWRPLANES lt CONNECTORS 2 FAN CONNECTORS FAN CONTROL FRONT PANEL CONNECTOR PCI BOARD gt CONNECTOR 15MHz MODULE BUFFER CONNECTORS 6 100MHz 6 BUFFER IO BOARD a gt CONNECTOR 16900A 16902A and 16903A Service Guide 1 0 board The following I O input output board subsystem block diagram includes FPGA more on page 112 Theory of Operation Multiframe input output more on
41. Return to n between each Proceed to boot up troubleshooting Check all cables to the front panel assembly Check all cables to the CPU motherboard Ensure the PCI bridge board is fully seated Reseat as necessary B5 No Connect a known good external monitor NOTE press and hold Touch off to switch between the internal and external monitors Login to Windows and check display settings Set the default to display 1 internal display at 800x600 pixels 16 bit color depth Is the display screen readable on the external monitor Replace the CPU Is the motherboard built in display completely dark Try D and then E Yes Return to between each Try C amp return to 1 Replace the LCD e panel te Replace the MIB 0 4 v Replace the PCI bridge board G 16900A 16902A and 16903A Service Guide 5 35 5 Troubleshooting Figure9 16903 Boot Up Troubleshooting Flowchart TYPICAL BOOT SEQUENCE DISPLAY 1 Boot text 2 Agilent Technologies text and logo 3 Intel boot agent text 4 Select operating system menu 5 Windows XP boot screen blue 6 Checking file system text 7 Welcome to Windows login screen Does the instrument reach 3 in the boot Enter BIOS setup and reset to default Failed BIOS boot
42. SWITCH CONNECTOR IDE BUS CPU POWER CONNECTOR 1 TOPWRPLANES CONNECTOR CDRW DRIVE POWER CONNECTOR TOPWRPLANES CONNECTORS 3 FAN CONNECTORS lt lt FAN CONTROL FRONT PANEL PCI BOARD M 41 M 34 CONNECTOR VIDEO CIRCUIT CONNECTOR MODULE FPGA H8 MODULE CONNECTORS 3 10 FPGA IO BOARD CONNECTOR 1 0 The I O board subsystem includes Target control port more on page 127 Trigger IN OUT more on page 127 Clock IN more on page 128 Calibration OUT more on page 128 16900A 16902A and 16903A Service Guide Theory of Operation 8 Front panel assembly The front panel assembly block diagram shown here includes LCD display Touch screen board and grid Keypad board For more information on the front panel assembly to to page 128 INVERTER LCD DISPLAY BOARD TOUCH SCREEN MIB BOARD FRONT PANEL CONNECTOR BOARD TOUCH SCREEN GRID KEYPAD BOARD 16903A CPU Subsystem CPU board The CPU motherboard is a standard microATX configuration with 512 MB of system RAM The exact CPU and speed grade will vary over the life of the pro
43. are reported in the boot dialogue Serious errors will interrupt the boot process The power up tests are designed to complement the instrument on line Self Tests Tests that are performed during powerup are not repeated in the Self Tests A monitor 16900A only keyboard and mouse must be connected to the mainframe to observe the results of the power up tests 1 Exit all logic analysis sessions 2 Press the power switch for about 1 second and release wait for the the unit to power off 3 After a few seconds turn the power switch back on Observe the boot dialogue for the following Ensure all of the installed memory is recognized Any error messages Interrupt of the boot process with or without error message A complete transcript of the boot dialogue is in chapter 8 Theory of Operation 4 During initialization check for any failures If an error or an interrupt occurs refer to Chapter 5 Troubleshooting 16900A 16902A and 16903A Service Guide 21 J Testing Performance 22 16900A 16902A and 16903A Service Guide Agilent 16900A 16902A and 16903A Logic Analysis System Service Guide A Calibrating and Adjusting Calibration Strategy 24 Calibrations and Adjustments for Modules 24 ES Agilent Technologies 23 24 4 Calibrating and Adjusting Calibration Strategy The 16900 series logic analysis systems do not require operational accuracy calibration Calibrations and Adjustments
44. cal GUI application software Listens for connection requests across the LAN remote connect from other systems Initialization of all local frame hardware including modules This initialization includes loading of all FPGAs that are not loaded directly by boot EEPROMs when power is first applied to the system Hardware monitoring Control over the Touch Off and Keyboard front panel buttons if applicable The logic analyzer service must be started and fully initialized before the application software will be allowed to run The logic analyzer drivers are not required for the application software to run however the software will not 16900A 16902A and 16903A Service Guide 117 118 Theory of Operation be able to go online with the local hardware until the drivers are installed running In addition other machines will not be able to remote connect to the machine and use its hardware if the drivers are not installed and running Because the service should always be running regardless of whether any user is logged onto the system the logic analyzer should always be responsive to remote connection requests from other machines The Touch Off and Keyboard buttons should also always function When the GUI application is launched by a logged on user the application by default will attempt to connect to local hardware and go online If the service is not started the application should either wait for the servic
45. der version of the software over a newer version you must first uninstall the newer version To uninstall the software go to Windows Start gt Control Panel gt Add or Remove Programs Select the logic analyzer software from the list of installed programs and select uninstall This recovery mechanism is used to fix problems with the logic analyzer software including application crash problems or problems with hardware recognition 2 Full hard drive system level recovery This is done by placing the appropriate recovery CD into the CD ROM and rebooting the analyzer When the system begins booting after shutting down the recovery sequence will begin After addressing the introduction screens the recovery CD will erase all data on the hard drive and image the disk back to the state it was in when the customer received it After a full hard drive recovery the logic analyzer software may or may not already be installed depending on the version of the recovery CD used This recovery mechanism is used to fix system level problems including damage done by viruses or previously installed software problems with operating system bugchecks blue screen etc Self test The logic analyzer does very little self test unless it is explicitly run by the user As previously mentioned the system BIOS does some hardware self test before turning control over to the operating system Once a user logs into the system and runs the logic analyzer
46. duct Standard I Os 16900A 16902A and 16903A Service Guide 123 124 Theory of Operation built into the ATX board are PS 2 serial port parallel port USB 2 0 10 100 Mbit LAN and VGA Video Additional PCI slots are available for added I O such as 1 Gbit LAN or video Disk drives The frame contains a standard IDE hard drive and a low profile CDRW drive Both are logically controlled directly from the CPU motherboard Power supply The frame uses a modular power supply to provide the six DC voltage rails 12 V 12 V 5 V 5 V 3 3 V 3 3 V These rails use remote sensing to maintain 01 load regulation The module slots are limited to 100 W each and the instrument as a whole to 600 W The frame has a soft power on off algorithm Pressing the power switch notifies the CPU to either wake up or power down The CPU then in turn drives the signal line which actually turns the supplies on or off A PLD monitors this process and will force a power down after approximately two minutes if the CPU does not respond The small portion of circuitry involved in this process is powered from an auxiliary 5 V which is always present as long as the instrument is plugged in Additional logic monitors the voltage levels on the six rails and will also cause an immediate power down if any one drops below about 90 of regulation Power down can also be caused by an over temperature sense circuit In this case PLD notifies the CPU the user
47. e system to another team or returning it to a rental company and you do not want any data left on it You will need to have a PS2 keyboard and PS2 mouse connected Follow the instructions provided with the recovery CD to restore your system software CAUTION Running the recovery disks will reformat your hard drive All data files and programs will be overwritten Save your data to CD or to another machine before performing this procedure 44 16900A 16902A and 16903A Service Guide Agilent 16900A 16902A and 16903A Logic Analysis System Service Guide 6 Replacing Assemblies 16900 Series Disassembly Assembly 46 To prepare the instrument for disassembly 48 To remove and replace optional modules or filler panels 50 To remove and replace the cover 52 To remove and replace the CPU tray 53 To remove and replace the PCI board 56 To remove and replace optional interface cards 58 To remove and replace the 1 0 board 60 To remove and replace the hard disk drive 62 To remove and replace the motherboard 63 To remove and replace the front panel assembly 64 To remove and replace the CD ROM Drive 65 To remove and replace the touch screen controller board 66 To remove and replace the backlight inverter board 68 To remove and replace the front panel interface board 69 To remove and replace the LCD bracket assembly 71 To remove and replace the touch screen display assembly 72 To remove and replace the keypad and keypad board 74 To re
48. e exact CPU and speed grade will vary over the life of the product Standard I Os built into the ATX board are PS 2 serial port parallel port USB 2 0 10 100 Mbit LAN and VGA Video Additional PCI slots are available for added I O such as 1 Gbit LAN or video Disk Drives The frame contains a standard IDE hard drive and a low profile CDRW drive Both are logically controlled directly from the CPU motherboard Power The frame uses two modular power supplies to provide enough current for the six DC voltage rails 12 V 12 V 5 V 5 V 3 3 V 3 3 V These rails use remote sensing to maintain 0 1 load regulation The module slots are limited to 100 W each and the instrument as a whole to 900 W This translates to 1300 W maximum draw from the outlet Note that the instrument is shipped with a special notched power cord for the notched input receptical which prevents the use of lower current rated cords The frame has a soft power on off algorithm Pressing the power switch notifies the CPU to either wake up or power down The CPU then in turn drives the signal line which actually turns the supplies on or off A PLD monitors this process and will force a power down after approximately two minutes if the CPU does not respond The small portion of circuitry involved in this process is powered from an auxiliary 5 V which is always present as long as the instrument is plugged in Additional logic monitors the voltage levels on the si
49. e for more details Electrostatic discharge can damage electronic components Use grounded wrist straps and mats when you perform any service to this instrument or to the cards in it To use the16900A and 16902A flowcharts 26 Flowcharts are the primary tool used to isolate defective assemblies The flowcharts refer to other tests to help isolate the problem The circled references on the charts indicate connections with the other flowcharts or other parts within the same flowchart A circled alpha references connections within the flowchart Start your troubleshooting at the top of the first flowchart Figure 1 on page 27 16900A 16902A and 16903A Service Guide Troubleshooting Figure 1 16900 and 16902A Troubleshooting Flowchart oM star Attach keyboard mouse and power cord Attach the external display for 16900A Remove all user installed PCI cards see To remove amp replace optional interface cards in chapter 7 Apply power Are the fans turning amp power on Is the display screen readable the instrument finish booting to windows Does the logic analyzer application start Run the module self tests Do the self tests pass No Go to module troubleshooting Is the problem still present Yes Call Agilent support 16900A 16902A and 16903A Service Guide 5 Troubleshooting Figure 2 Remov
50. e power plug for 15 seconds to reset power supplies Apply power Are the fans turning amp power on Are the MIB green yellow No Is the 16900A and 16902A Power Troubleshooting Flowchart module interface LEDs on see pg 38 Yes Module interface board is detecting a bad voltage Green indicates 500 watt supply Yellow indicates 700 watt supply Go to To check the power supply voltages in this chapter board s red The power down signal is asserted from CPU or MIB LED on The over temperature circuit is tripped then B then C Return to 2 between each Is the instrument at room temperature No Let it cool and check for fan failure Replace the MIB module interface board Replace the Are power supply defective voltages correct power supply Check for a power short burnt components traces etc Is there Yes Replace the a power damaged short assembly Replace the MIB module interface board 28 Check the CPU power cable and the reset cable Check the AUX 5V power Go to To troubleshoot power problems in this chapter F Replace the CPU ay PENA Replace the MIB 16900A 16902A and 16903
51. e to start newer software revisions or generate a message box indicating the service needs to be started older software revisions If the drivers are not loaded the GUI application will start in offline mode Once the GUI application is running the user can go online with local hardware or the hardware in any other Agilent 168x 169x 1690x logic analyzer running the same version of the logic analyzer software The remote machine must be available on the network Product install The product install SetupLAxxxx exe performs the following Install the logic analyzer specific files to the local hard drive Register the application with the operating system various registry settings are applied including COM registration Create start menu desktop shortcuts Install device drivers Install and start the service Check frame boot EEPROMs non volatile ROMs and verify they are up to date Reloads the boot EEPROMs if necessary 16900A 16902A and 16903A Service Guide Theory of Operation 8 Software recovery methods 1 Logic analyzer product re installation Re installing the logic analyzer product requires running the setup executable file typically named SetupLAxxxx exe For example the 02 50 software release file will be called SetupLA0250 exe During the installation of the product older versions are automatically removed and replaced with the newer version However if you need to install an ol
52. embly on page 48 To remove and replace the cover on page 52 2 Disconnect cables from the module interface board 54 16900A 16902A and 16903A Service Guide Replacing Assemblies Module Interface Board WMI Hard drive power A S x V PCI cable CD ROM cable CPU power 16900624 ELM 3 Remove 9 screws from the back of the CPU tray using a Torx T10 screwdriver T10 screws 9 4 Slide the tray out being careful not to catch the loose cables on anything 5 Reverse this procedure to install the CPU tray 55 16900A 16902A and 16903A Service Guide 6 Replacing Assemblies To remove and replace the PCI board 16900A and 16902A PCI board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the CPU tray on page 53 2 Using a Torx T10 screwdriver remove the 2 screws that secure the PCI board to the CPU tray 3 Disconnect the CPU touch screen cable 4 Pull the end of the PCI board that is attached to the PCI bracket toward you to release it from the bracket then lift slightly to remove from slots 5 Pull up the other end of the PCI board to disconnect it from the PCI socket on the motherboard PCI Board gt PCI Bracket Slots Touch Screen
53. emove and replace the card cage and fans 16900A and 16902A card cage and fans 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the CPU tray on page 53 To remove and replace the I O board on page 60 for 16903A model only 2 Using a Torx T10 screwdriver remove the screws holding the module ejectors to the rear of the chassis 3 Using a Torx T10 screwdriver remove the 6 screws holding the card cage assembly to the rear of the chassis 16900A 16902A Card Cage 16903A Card Cage Chassis Screws 6 T10 Chassis Screws 6 T10 o o o o 7 Pd Wis Module Pd Module Ejector Ejector Screws Screws 6 T10 8 T10 4 Disconnect the fan cables from the module interface board 5 Using a Torx T10 screwdriver remove the 4 screws securing the card cage to the chassis 6 Using a Torx T10 screwdriver remove the 4 screws securing the fan from the card cage 80 16900A 16902A and 16903A Service Guide Replacing Assemblies Screws Lr T10 Screws 16900243 AN ALN S ANN SSS S SQQ WOH Module Interface o e T10 81 16900A 16902A and 16903A Service Guide 6 Replacing Assemblies To remove and replace the line filter assembly Perform previous procedures To prepare the instrument
54. emove and replace the front panel assembly on page 64 remove and replace the touch screen controller board on page 66 To remove and replace the backlight inverter board on page 68 2 Place the front panel assembly face down and disconnect the cables from the front panel interface board as shown 3 Using a Torx T10 screwdriver remove the screw that secures the front panel interface board to the LCD bracket assembly 4 Push board slightly down to remove standoffs from the 4 keyholes then remove the board 16900A 16902A and 16903A Service Guide 69 70 Replacing Assemblies Front Panel Interface Board T10 Screw LCD Cable Keyboard 16902 07 Cable 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 To remove and replace the LCD bracket assembly 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the front panel assembly on page 64 remove and replace the touch screen controller board on page 66 To remove and replace the backlight inverter board on page 68 To remove and replace the front panel interface board on page 69 2 Using a Torx T10 screwdriver remove the 6 screws that secure the LCD bracket assembly to the front frame 3 Feed the cables through the bracket and remove 4 Use the guide pins
55. gies Part Des Number Qty Description MP35 16900 04102 1 Duct for 500 W supply MP36 0950 4462 1 Power supply 500 W 4 outputs MP37 16900 68501 1 Fan MP38 16900 66501 1 PCI board MP39 16900 01210 1 CPU reset bracket MP40 0960 2252 1 Motherboard Micro ATX 1 GHz CPU MP41 86122 60020 1 Rear power on off switch MP42 16900 66503 1 1 0 board MP43 0950 4590 1 Hard drive 80 GB ATA Ultra 100 MP44 16900 64101 1 Hard drive plate assembly MP45 1600 1707 1 Short ISA slot cover MP46 1400 2120 1 2 ISA slot cover MP47 16700 40501 0 6 Module Filler panel W3 16900 61603 1 Cable CDR MIB CPU W8 16700 61602 1 Power supply cable for 500 W and 700 W supplies w9 16900 61609 1 Line filter assembly W10 E5861A 1 Multiframe Pro cable W11 16900 61611 1 Cable touch screen RS 232 W12 16900 61605 1 CPU reset cable W13 16600 61611 1 Cable hard drive power W14 16900 61601 1 Cable hard drive W15 16903 61600 1 Motherboard power cable W16 16900 61610 1 Cable rear power on off W17 16900 61606 1 Cable CD ROM W19 16700 61603 1 Cable sense 96 16900A 16902A and 16903A Service Guide 16903A Frame The 16908 logic analysis modules measurement 2 52 1 0 Board MP49 50 Module Ejectors HB F Torx 7 Screw 8 system is H10 Drive Pozidrive 8 X Power Cable Screw 4 Pa 4 H12 gt 2 amp ZL LA Ke PX 44
56. he logic analysis system are listed on page 4 Inspect the product for physical damage Check the logic analysis system and the supplied accessories for obvious physical or mechanical defects If you find any defects contact your nearest Agilent Technologies Sales Office Arrangements for repair or replacement are made at Agilent Technologies option without waiting for a claim settlement Contact information is located on page 4 Connect the supplied power cord to the instrument and to the power source This instrument autodetects the line voltage from 115 VAC to 230 VAC It is equipped with a three wire power cable When connected to an appropriate AC power outlet this cable grounds the instrument cabinet The type of power cable plug shipped with the instrument depends on the model ordered and the country of destination The 16900A and 16902A should only be used with the notched power cord provided due to the high power requirements of the instruments Refer to Power Cables and Plug Configurations on page 100 more information on power cables Turn on the power switch located on the front panel 16900A 16902A and 16903A Service Guide Preparing for Use 2 For first time power up considerations and setup steps refer to the Installation Guide that came with your instrument To get the most up to date installation guide Go to www agilent com Search for 16900A Logic Analysis System Look under Manuals and Guide To
57. he socket to remove To install a card ensure that the tab at the bottom of the card is aligned with the slot in the bottom of the CPU tray between the motherboard and the rear panel Press the card securely into the socket on the motherboard For cards in the tall slot s swing the plate back into place Replace the screw s 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 T10 Screw ES 9 Interface Cards e Plate on Rear Panel Card Socket Motherboard Tall Slot Bottom of 16900e26 CPU Tray Rear Panel 16900A 16902A and 16903A Service Guide 59 6 Replacing Assemblies To remove and replace the 1 0 board 16900A and 16902A 1 0 board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the CPU tray on page 53 2 Disconnect the front panel reset cable 3 Using a deep well 13 16 inch nut driver remove the hex nuts that secure the BNC connectors to the rear panel 4 Using a Pozidrive screwdriver remove the 4 screws securing the multiframe input output connectors to the rear panel 5 Using a Torx T10 screwdriver remove the screw securing the I O board to the CPU tray T 10 Screw 1 9 1 0 Board Multiframe Connectors 16900 02A Rear Panel Front Panel Reset Cable Pozidrive pae e Screws 4 RY eS 2
58. ies to provide these advantages a check or money order must accompany each order Mail order forms and specific ordering information are available through your local Agilent Technologies Sales Office To locate a sales office near you go to http www agilent com find contactus Exchange Assemblies Some assemblies are part of an exchange program with Agilent Technologies The exchange program allows you to exchange a faulty assembly with one that has been repaired and performance verified by Agilent Technologies 16900A 16902A and 16903A Service Guide Replaceable Parts 7 After you receive the exchange assembly return the defective assembly to Agilent Technologies A United States customer has 30 days to return the defective assembly If you do not return the defective assembly within the 30 days Agilent Technologies will charge you an additional amount This amount is the difference in price between a new assembly and that of the exchange assembly For orders not originating in the United States contact your nearest Agilent Technologies Sales Office for information To locate a sales office near you go to http www agilent com find contactus For more information on returning assemblies go to Returning Assemblies on page 85 Replaceable Parts List Description The replaceable parts lists in this chapter are organized by reference designation The exploded views do not show all of the parts in the replaceable parts lists
59. interface board 83 motherboard 63 PCI board 56 touch screen controller 66 touch screen controller board 66 replaceable parts 88 replacement strategy 46 returning assemblies 85 S sales office 4 saving license file 47 self tests 42 service office 4 shipping damage 16 shipping requirements 12 specifications see characteristics 12 storage requirements 12 system operating theory 104 T temperature 12 tests self tests 42 theory of operation 104 block level 104 time correlated measurements 17 tools required 46 touch screen controller board removal 66 trigger in 13 troubleshooting 26 V vibration 12 voltages power supply 40 warnings hazardous voltages 16 46 48 web address 85 weight 12 130 16900A 16902A and 16903A Service Guide
60. is controller interprets touch presses and communicates back the host CPU via 15 V RS232 16900A 16902A 16903A Power Up Routine The power up routing includes the following Boot sequence more on page 115 Product install more on page 118 Software recovery methods more on page 119 Self test more on page 119 Boot sequence The 16900A 16902A systems ship with the Windows XP Professional operating system After power is applied to the frame the basic input output system BIOS is the first thing to run Among other things the BIOS is responsible for 16900A 16902A and 16903A Service Guide 115 116 Theory of Operation enumerating plug and play PnP devices in the system and doing a power on self test POST All of the CPU motherboard RAM is checked during however subtle memory problems may not be detected by this simple test If any hardware that the BIOS detects is malfunctioning at a fundamental level then the BIOS reports an error to the display if available If things are OK control is turned over to the operating system On units with front panels the BIOS startup screen will be displayed on the LCD panel On faceless frames the BIOS startup screen will display itself out the rear VGA connector to an attached monitor During startup the Agilent logo is displayed by the system BIOS then a few other messages and finally the preliminary Windows XP startup screens During the firs
61. is software power off does the following Closes all programs that are running Writes all data to the disk Turns off the power supply 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 f the system is unplugged while it is off and then plugged back in the system will not power on until the power button is pressed Using a Short Press of the Power Button Pressing the power button on a frame for a short time less than 2 seconds or so Closes all programs that are running Writes all data to the disk Turns off the power supply If the power button is depressed for a short time less than 2 seconds or so while another instrument has an open Remote Desktop connection to this instrument a message on the logic analysis system screen not on the remote desktop will pop up asking if you really want to power down Clicking the yes button results in the above events Clicking no will prevent the shutdown and not answering the dialog box neither clicking Yes or No will have no effect Further short presses on the power button will have no effect Using a Long Press of the Power Button Pressing the power button for more than 4 seconds will power the system down abruptly Use this method only when other methods have not responded Programs that are running will not be shut down Any data that has not been written to the disk will be lost Turns off the power supply If the sys
62. le 3 Replaceable parts for the cover and front panel assemblies continued Replaceable Parts 7 Ref Agilent Technologies Part Des Number Oty Description MP20 54801 47401 3 Knob 12 mm MP21 54801 47402 2 Knob 18 mm MP22 16702 47402 1 Knob cursor MP23 2090 0904 1 LCD Liquid crystal display 12 1 inch TFT MP24 0960 2589 1 Touch screen assembly MP25 0960 2590 1 Touch screen controller board W1 16902 61601 1 Front panel cable W2 16900 61607 1 On Off front cable W3 16900 61603 1 CD to MIB cable W4 01680 61608 1 Inverter cable W5 16902 61602 1 Keypad cable W6 16702 61607 1 LCD cable W7 16902 61604 1 Touch screen cable assembly 16900A 16902A and 16903A Service Guide 93 7 Replaceable Parts 16900A and 16902A Frames The 16900A and 16902A logic analysis systems are modular with slots for 6 measurement modules Go to www agilent com Suppl Cable wB Power Screw T10 Torx Screw 4 40 Torx crew 1 Hard MP42 o Bourd pe Power b MP43 gt H12 T10 Torx CU Screw Bottom Hard Drive Foot Panels _ MP45 m PCI WA Filter Y Panels 4 A MP47 Reor Panel Module Filler Panel Assembly CPU Disploy Cable H15 BNC Hex Nut 4 w10 Multiframe MP40 PU Display H11 Coble 8 W16 Motherboard Rear amp Cable 94 16900A
63. lete instructions In these cases refer to the procedure for that specific assembly for the instructions Electrostatic discharge can damage electronic components Use grounded wrist straps and mats when performing any service to this logic analysis system Tools Required T6 T10 T15 T20 TORX screwdrivers 1 Pozidrive screwdriver 1 8 inch screwdriver e 13 16 inch deep well nut driver 1 4 inch hex socket 3 16 inch nut driver 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 To save the license file Before doing any major repairs to the instrument it is recommended that you back up any data and license files if possible You will need a backup copy if you encounter any problems that require reimaging the hard drive The license files have the licenses for the inverse assemblers and tools If for some reason you lose the license files you can obtain new license files from Agilent To save the license file 1 Insert a writeable CD into the CD drive 2 Use Windows Explorer to copy the folder c ProgramFiles Agilent Technologies Logic Analyzer License and paste it to the CD 3 In Windows explorer select the CD R RW drive then use the menu command File gt Write these files to CD To obtain the licensing host ID In the Logic Analyzer application go to Help gt Software Licensing Choose the tab How to install a license The Licensing Host ID will be displayed on this page 16900A
64. ly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met The Agilent 16900 series Logic Analysis Systems At a Glance The Agilent Technologies 16900 series logic analysis systems are modular systems with slots for logic analyzer and other types of measurement modules 16900A 16902A or 16903A Logic Analysis Logic Analysis System System Table 1 X Model comparisons Agilent model 16900A 16902A 16903A number Number of slots 6 6 3 Multiframe Pro Yes Yes No Display and Uses external Built in color Built in color resolution display supports touch screen touch screen up four external display 12 1 inch display 12 1 inch displays at up to at 800 x 600 at 800 x 600 1600 x 1200 with supports up to four supports up to four PCI video card external monitors external monitors at up to 1600 x at up to 1600 x 1200 with PCI 1200 with PCI video card video card PClexpansion 2 full profile 2 full profile 1 full profile slots 1 low profile 1 low profile 1 low profile All models have a familiar Wind
65. mance 20 Self Tests Test Interval To ensure the logic analysis system is operating correctly you can perform software tests self tests on the system Directions for performing the software tests are given in this chapter Because there are no specifications for the 16900 series logic analysis system there no performance verification tests The self tests listed in this chapter check the functional operation of the mainframe Self tests for the optional modules installed in the frames are listed in the individual module Service Guides There are two types of self tests self tests that automatically run at powerup and self tests that you select on the screen For descriptions of the tests refer to Chapter 8 Theory of Operation Perform the self tests as an acceptance test when receiving the logic analysis system or when the logic analysis system is repaired If a test fails refer to Chapter 5 Troubleshooting There is no recommended test interval for the 16900 series mainframes However each of the supported modules has performance verification tests and therefore require a periodic verification of specifications Refer to the Service Guides of the individual modules for more information 16900A 16902A and 16903A Service Guide Testing Performance 3 To perform the power up tests The logic analysis system automatically performs power up tests when you apply power to the instrument Any errors
66. move and replace the On Off 76 To remove and replace the power supplies 77 To remove and replace the card cage and fans 80 To remove and replace the line filter assembly 82 To remove and replace the module interface board 83 Returning Assemblies 85 Part drawings in this chapter are representative The actual parts may look different XE Agilent Technologies 6 Replacing Assemblies 16900 Series Disassembly Assembly 46 This chapter contains the instructions for removing and replacing the assemblies of the logic analyzer Also in this chapter are instructions for returning assemblies Hazardous voltages exist on the power supply To avoid electrical shock disconnect the power from the instrument before performing the following procedures After disconnecting the power wait at least six minutes for the capacitors on the power supply board to discharge before servicing the instrument CAUTION Damage can occur to electronic components if you remove or replace assemblies when the instrument is on or when the power cable is connected Never attempt to remove or install any assembly with the instrument on or with the power cable connected Replacement Strategy CAUTION These replacement procedures are organized as though you are disassembling the complete instrument from the first assembly to be removed to the last Some procedures tell you to remove other assemblies of the instrument but do not give comp
67. nctions allow a multiframe setup to completely self configure itself and appear as one integrated measurement system Target control port The target control port consists of eight bi directional LVTTL lines driven from the FPGA through 51 series dampening resistors These lines are configured by the user as either READ or WRITE lines and are used for basic system monitoring and control For example when driving a target system reset line or monitoring system power on Trigger IN OUT These two BNCs function as an external trigger out and arm in signaling between frames or other test equipment The TRIGGER OUT is a simple three state LVTTL 50 line drive circuit TRIGGER IN ARM is complicated by the need to handle variable threshold levels The circuit consists 16900A 16902A and 16903A Service Guide 113 114 Theory of Operation of a programmable 12 bit DAC and comparator This combined with a level shift and divide circuit allows for a 5 V input range 200 mV minimum swing and 50 mV threshold steps Clock IN This BNC input is specifically for a 10 MHz clock signal from an oscilloscope or other source The signal is AC coupled and passed through a 10X multiplier part ow jitter and then fed to the FPGA as one of the 100 MHz clock source choices Using this input allows two measurement instruments to run on the same time base and maintain correct time alignment over long aquisitions Calibration OUT This BNC outp
68. nd possible other modules connected through the multiframe port or trigger in connector This is done with eight 52 bit counters running at 1 6 GHz allowing relative time alignment of eight seperate events A 100 MHz clock is also selected from three possible sources internal multiframe external and a synchronizing signal is generated for time alignment across multiframe A second major function of the FPGA is the logical combination and routing of the module arm and trigger lines ARM TRIG FLAG These signals are used by the modules to start and stop each other in addition to supplying the signals for real time correlation The other FPGA functions include a system interface to control the trigger input and output ports target control port a serial DAC programmer and UARTs for multiframe PLD The PLD is the low level system control element powered from the AUX 5 V rail and continuously ON It logically controls the soft power ON OFF through signal lines to the CPU and and power switch monitoring It physically turns power ON OFF via power on off signals on the power supply sense cables In addition to the power switch starting a power down sequence two additional monitoring circuits overtemp and voltage rail may cause the PLD to initiate power down Both of these conditions are latched faults and require removing the power cord for 15 seconds to clear the condition Voltage rail monitor six voltage rails are continu
69. ned herein Should Agilent and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the sep arate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or sub contract Software is delivered and licensed as Commercial computer soft ware as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 June 1987 or any equivalent agency regulation or contract clause Use duplication or disclosure of Software is subject to Agilent Technologies standard commercial license terms and non DOD Departments and Agencies of the U S Gov ernment will receive no greater than Restricted Rights as defined in FAR 52 221 19 c 1 2 June 1987 U S Govern ment users will receive no greater than Limited Rights as defined in FAR 52 227 14 June 1987 or DFAR 252 227 7015 b 2 November 1995 as applicable in any technical data Safety Notices A CAUTION notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correct
70. ng the instrument 16900A and 16902A power supplies 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the front panel assembly on page 64 2 Disconnect the following cables on both power supplies Power Cable Sense Cable 12 Position Cable 16900A 16902A and 16903A Service Guide 77 6 Replacing Assemblies T20 Screws 2 12 Position 12 Position Cable 500 Watt 700 Watt T10 Power crew Supply 1 Screws 4 3 Using Torx T20 and T10 screwdrivers remove the 4 screws that secure the 700 Watt power supply to the chassis 4 Using a Torx T20 screwdriver remove the 4 screws that secure the 500 Watt power supply to the chassis 16903A power supply 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 2 Disconnect the following cables Power Cable Sense Cable 24 Position Cable 22 Position Cable 16 Position Cable 3 Using Torx T20 and T10 screwdrivers remove the 4 screws that secure the power supply to the chassis 78 16900A 16902A and 16903A Service Guide 16900A 16902A and 16903A Service Guide Replacing Assemblies T20 Screws 2 T10 Sense Cable 24 Position Cable 22 Position Cable Power T10 Supply Screw 16 Position Cable 79 6 Replacing Assemblies To r
71. nts 16903A Front Panel Assembly The identical front panel assembly is used on both the 16902A six slot logic analyzer and the 16903A three slot logic analyzer See 16902A 16903A Front Panel Assembly on page 114 16903A Power Up Routine The power up routine is the same on all frames See 16900A 16902A 16903A Power Up Routine on page 115 16900A 16902A and 16903A Service Guide Index Numerics 16900A frame replaceable parts 94 16902A frame replaceable parts 94 16903A frame replaceable parts 97 A accessories 3 accuracy 24 adjustments 24 Agilent contact information 4 air circulation 51 altitude 12 assemblies exchange 88 returning 85 assembly procedures 46 backligh inverter board removal 68 before disassembly 48 board backlight inverter 68 front panel interface 69 1 0 for 16903A 127 1 0 removal 60 keypad 74 MIB for 16900 02A 111 MIB for 16903A 125 MIB removal 83 motherboard removal 63 PCI for 16900 02A 110 PCI for 16903A 124 PCI removal 56 touch screen controller 66 C calibration 24 cautions damage to components 46 48 electrostatic discharge 46 LCD display handling 72 CD ROM drive 43 characteristics 12 cleaning instrument 17 LCD display 72 touch screen 72 clock in 13 contacting Agilent 4 controller board removal 66 cooling 51 cover assembly 90 D damage in shipping 16 dimensions 13 disassembly preparation 48 procedures 46
72. oard MIB module interface board I O input output board Front panel assembly DC FANS 12V to 24V CDROM IDE Bus Front Panel On Off Module Interface Board Module Bus Digital Video RS232 Rear Panel Switch JTAG Control 3 3V 5V Rear Panel On Off PCI Board CPU POWER CONNECTOR Primary PCI Bus Digital Video RS232 3 3V 5V 12V Module Bus Module Triggers Module ARMs Flags 100 MHz Clock CPU On Off Reset JTAG Control Front Panel Interface Board IDE BUS CDROM IO Board Digital Video RS232 Grid Scan 12 1 Flat Panel LCD Display Keypad Board 12 1 Touch Screen Grid Rear Panel Signals Disk Drive Power CPU On Off Reset Hard Disk Drive IDE BUS CPU MOTHERBOARD 104 16900A 16902A and 16903A Service Guide Theory of Operation 8 CPU subsystem The CPU subsystem includes the following CPU board more on page 109 Disk drives more on page 109 Power more on page 109 PCI board The following PCI board subsystem block diagram includes PCI bridge more on page 110 Module FPGA more on page 110 Video circuit more on page 110 PLD more on page 110 PCIto 4 CONNECTOR B
73. on Electrical and Operating Environment Characteristics 12 Dimensions 13 2 Preparing for Use To inspect the logic analysis system 16 To apply power 16 To connect multiple frames 17 To install measurement modules 17 To clean the instrument 17 3 Testing Performance Testing Performance 20 Self Tests 20 Test Interval 20 To perform the power up tests 21 4 Calibrating and Adjusting Calibration Strategy 24 Calibrations and Adjustments for Modules 24 16900A 16902A and 16903A Service Guide 3 5 Troubleshooting Troubleshooting 26 To use the16900A and 16902A flowcharts 26 Figure 1 16900 and 16902A Troubleshooting Flowchart 27 Figure 2 16900A and 16902A Power Troubleshooting Flowchart 28 Figure 3 16900A and 16902A Display Troubleshooting Flowchart 29 Figure 4 16900 and 16902A Boot UpTroubleshooting Flowchart 30 Figure 5 16900A and 16902A Application Troubleshooting Flowchart 31 To use the16903A flowcharts 32 Figure 6 16903A Troubleshooting Flowchart 33 Figure 7 16903A Power Troubleshooting Flowchart 34 Figure 8 16903A Display Troubleshooting Flowchart 35 Figure 9 16903A Boot Up Troubleshooting Flowchart 36 Figure 10 16903A Application Troubleshooting Flowchart 37 To troubeshoot power problems 38 To check the power supply voltages 40 16900A and 16902A power supplies 40 16903A powersupply 41 To run the self tests 42 Troubleshooting the CD ROM drive 43 To reinstall the operating system 44 6 Replacing
74. ously monitored for an under voltage fault condition This could be caused by such things as a failed power supply or a short circuit within the instrument When detected both power supplies are immediately shut down At power up there is a one second time delay to allow the power to stabalize before the monitoring circuit is enabled 16900A 16902A and 16903A Service Guide Theory of Operation 8 Overtemp monitor A temperature monitoring circuit protects the instrument from thermal damage due to things such as failed fans or blocked frame vents The circuit first notifies the CPU of a problem which then prompts the user with a warning message and initiates a soft power down If the soft power down fails a forced power down is initiated after about two minutes Fan control The instrument uses a pair of 24 V fans driven from a DC DC boost converter circuit This circuit creates a linear voltage ramp from 12 V to 24 V across the operating temperature range The purpose of this circuit is to increase air flow as needed while maintaining the lowest possible fan noise 16903A 1 0 Input Output Board Top level function The 16903A I O board is a simple passive board for the I O connectors It connects back to the main MIB board where the interface logic is located Target control port The target control port consists of eight bi directional LVTTL lines driven from the FPGA through 51 series dampening resistors These lines
75. ows based user interface which takes the complexity out of making logic analyzer measurements You can perform all operations directly from one window 16900A 16902A and 16903A Service Guide 3 Supplied Accessories PS2 mouse e PS2 keyboard e Accessory pouch and power cord Ten conductor flying lead cable for target control port Optional Accessories e Multiframe cable E5861A e 1 Gbit low profile LAN card Option 014 or E5860A Probes Service Strategy The service strategy for this instrument is the replacement of defective assemblies This service guide contains information for finding a defective assembly by testing and servicing the 16900A 16902A 16903A This instrument can be returned to Agilent Technologies for all service work including troubleshooting Contact your nearest Agilent Technologies Sales Office for more details Contacting Agilent Technologies To locate a sales or service office near you go to http www agilent com find contactus 16900A 16902A and 16903A Service Guide In this Service Guide This book is the service guide for the 16900A 16902A 16903A Logic Analysis System and is divided into eight chapters Chapter 1 General Information contains information about the instrument including accessories specifications and characteristics and a list of the equipment required for servicing the instrument Chapter 2 Preparing for Use tells how to prepare the ins
76. page 113 Target control port more on page 113 Trigger IN OUT more on page 113 Clock IN more on page 114 Calibration OUT more on page 114 TO MODULE CONNECTORS 120 to MIB module interface board A FLAGS BUFFER TARGET CONTROL e M ERROM PORT CONNECTOR CONTENT 1 6 GHz Correlator Arm trig flag router 100 MHz clocking MULTIFRAME source lO interface INPUT OUTPUT CONNECTORS o Y DAC amp 50 ohm 10X 50 ohm BUFFER BUFFER BUFFER BUFFER A A PORT OUT IN CAL OUT BNC PENES CR 16900A 16902A and 16903A Service Guide iP 107 8 Theory of Operation Front panel assembly The front panel assembly block diagram shown here includes LCD display Touch screen board and grid Keypad board For more information on the front panel assembly go to page 114 INVERTER LCD DISPLAY is TOUCH SCREEN Gomes FRONT PANEL CONNECTOR BOARD TOUCH SCREEN GRID KEYPAD BOARD 108 16900A 16902A and 16903A Service Guide Theory of Operation 8 16900A 16902A CPU Subsystem CPU Board The CPU motherboard is a standard microATX configuration with 512 MB of system RAM Th
77. power ON OFF via power on off signals on the power supply sense cables In addition to the power switch starting a power down sequence two additional monitoring circuits overtemp and voltage rail may cause the PLD to initiate power down Both of these conditions are latched faults and require removing the power cord for 15 seconds to clear the condition Voltage rail monitor six voltage rails are continuously monitored for an under voltage fault condition This could be caused by such things as a failed power supply or a short circuit within the instrument When detected both power supplies are immediately shut down At power up there is a one second time delay to allow the power to stabilize before the monitoring circuit is enabled Overtemp monitor temperature monitoring circuit protects the instrument from thermal damage due to things such as failed fans or blocked frame vents The circuit first notifies the CPU of a problem which then prompts the user with a warning message and initiates a soft power down If the soft power down fails a forced power down is initiated after about two minutes Fan control The instrument uses a pair of 24 V fans driven from a DC DC boost converter circuit This circuit creates a linear voltage ramp from 12 V to 24 V across the operating 16900A 16902A and 16903A Service Guide 111 112 Theory of Operation temperature range The purpose of this circuit is to increase air flow a
78. rd L T6 Screw T6 Screw Touch Screen Cable Assembly 292 KA Jumper Dy 8 Wire Touch Screen Cable 16902e05 66 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 4 Ensure the jumper on J1 connector has the top inside pin exposed when replacing 16900A 16902A and 16903A Service Guide 67 6 Replacing Assemblies To remove and replace the backlight inverter board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the front panel assembly on page 64 2 Place the front panel assembly face down and disconnect the cables from the inverter board as shown 3 Using a Torx T6 screwdriver remove the 2 screws securing the board to the front panel board Backlight Inverter Board Inverter Cable 0 lt 9 S 9 6 Screws 2 E gt 0 2 0 LCD Cable pink 16902e06 4 Reverse this procedure to install the backlight inverter board 68 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 To remove and replace the front panel interface board 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To r
79. receives a warning window and a soft power down is started Again the PLD will force a power down if the CPU does not soft power down in about two minutes 16903A PCI board The 16903A PCI Board plugs into a CPU Board PCI slot providing the interface between the CPU motherboard and the logic analyzer On the PCI board is a PCI bridge chip used to provide an electrical interface between the CPU PCI slot bus and the two PCI devices located on the Module Interface Board A TI2050A PCI bridge chip is used to connect to the primary PCI bus on the CPU motherboard connector and provides a secondary PCI bus which is connected via an 80 pin high density cable from this PCI board to the Module Interface Board 16900A 16902A and 16903A Service Guide Theory of Operation 8 In addition to the PCI bridge chip providing a secondary PCI bus this PCI board is used to route the touch screen RS232 COM2 connection Routing of this function through the PCI board is for mechanical purposes Attached to the front panel interface board is a Touch Screen Control module used to implement the touch screen This control module uses 15 V RS232 to communicate with the CPU motherboard The two wire RS232 signals are routed from the Front Panel Interface board through the Module Interface Board and then finally to this PCI board The ten pin connector J2 is used to connect the two wire RS232 interface to the COM2 connector on the CPU motherboard 16903A MIB Mod
80. remove and replace the line filter assembly 82 To remove and replace the module interface board 83 Returning Assemblies 85 7 Replaceable Parts Replaceable Parts Ordering 88 Parts Listed 88 Parts Not Listed 88 Direct Mail Order System 88 Exchange Assemblies 88 Replaceable Parts List Description 89 Cover Assembly 90 Front Panel Assemblies 91 Table 3 Replaceable parts for the cover and front panel assemblies 92 16900A 16902A and 16903A Service Guide 10 16900A and 16902A Frames 94 Table 4 Replaceable parts for the 16900A and 16902A frames 95 16903A Frame 97 Table 5 Replaceable parts for the 16903A frame 98 Power Cables and Plug Configurations 100 Table 6 Power Cables and Plug Configurations 100 8 Theory of Operation Index Theory of Operation 104 16900A and 16902A Systems Block Level Theory 104 16900A 16902A CPU Subsystem 109 16900A 16902A PCI Board 110 16900A 16902A MIB Module Interface Board 111 16900A 16902A Input Output Board 112 16902A 16903A Front Panel Assembly 114 16900A 16902A 16903A Power Up Routine 115 16903A Block Level Theory 120 16903A CPU Subsystem 123 16903A PCI board 124 16903A MIB Module Interface Board 125 16903A 1 0 Input Output Board 127 16903A Front Panel Assembly 128 16903A Power Up Routine 128 16900A 16902A and 16903A Service Guide Agilent 16900A 16902A and 16903A Logic Analysis System Service Guide 1 General Information Electrical and Operating Environment
81. roubleshooting 5 500 watt power supply voltages 16903A power supply The 700 watt power supply in the 16903A system is different than the one in the 16900 02A systems Use the following graphics when measuring the voltages on the 16903A power supply 700 watt power supply voltages 16900A 16902A and 16903A Service Guide 41 5 Troubleshooting To run the self tests Analysis System Self Tests Select options Include interactive tests Run repetitively C Stop on fail Double click item to start 1 In the Agilent logic analyzer application click Help gt Self Test idow Help Help Topics Help On Windows Help On Tools Help Language 4 i o Fi gt gt gt ill Self Test 2 In the Analysis System Self Test dialog double click on the test you want to run Set reporting level Current 0 J Progress amp Statistics Overall E Tests selected 1 g Failures 0 Select suites slots Select tests lt all gt lt all gt Interface FPGA Register Test 3 16950A Logic Analyzer B Load Memory FPGAs Test 16750B Logic Analyzer C Memory FPGA Register Test m 16740A Logic Analyzer D EEPROM Test Memory Data Bus Test Memory Address Bus Test
82. s needed while maintaining the lowest possible fan noise 16900A 16902A Input Output Board Top level function The input output I O board bridges between the frame rear panel connectors and the MIB module interface board from which it receives power and system interface signals The board has three basic purposes 1 Interface hardware for the following system frame connectors multiframe input output target control port trigger in out clock in calibration out 2 System clock generation and synchronization 3 System level functions for the module slots Specifically correlation trig arm flag routing FPGA function The Xilinx XC2V250 FPGA is the heart of the I O board and contains almost all of the functional logic for this module The system interfaces directly to this part in the same way it talks to the six module slots via a 16 bit multiplexed general purpose bus The FPGA is loaded from an on board EPROM at power up The EPROM contents can be changed updated through the system software via a JTAG port A major function of this FPGA component is system correlation time alignment of the six modules and possible other modules connected through the multiframe port or trigger in connector This is done with eight 52 bit counters running at 1 6 GHz allowing relative time alignment of eight seperate events A 100 MHz clock is also selected from three possible sources internal multiframe external and a synchronizing
83. s out of the logic analysis system frame Thumb screw Open position desooeto The following figure shows a 6 card frame The insertion removal order would be the same for a 3 card frame A single module configuration can be installed in any available slot 16900A 16902A and 16903A Service Guide Replacing Assemblies 6 Insertion Order we Removal Order 1 N wo A c A Co N 6 When inserting seat the modules then rotate the ejector tabs to the lock position Repeat for all modules or filler panels Locking Order Ejecting Order D SAS S L4 TS EN ANY je 72 04 oO x ALANNA 7 Tighten the thumb screws until finger tight in the same order used in step 5 above If using a hex socket or torque driver avoid over tightening 2 in lb maximum 8 For correct air circulation install filler panels in all unused card slots Correct air circulation keeps the instrument from overheating Keep any extra filler panels for future use 16900A 16902A and 16903A Service Guide 51 6 Replacing Assemblies To remove and replace the cover 1 Perform previous procedures To prepare the instrument for disassembly on page 48 2 Using a Torx T15 screwdriver remove the handle assembly 3 Using a Torx T10 screwdriver remove 3 screws that secure the cover to the chassis 4 Slide the
84. signal is generated for time alignment across multiframe 16900A 16902A and 16903A Service Guide Theory of Operation 8 A second major function of the FPGA is the logical combination and routing of the module arm and trigger lines ARM TRIG FLAG These signals are used by the modules to start and stop each other in addition to supplying the signals for real time correlation The other FPGA functions include a system interface to control the input and output ports a serial DAC programmer and UARTs for multiframe Multiframe input output Multiframe is a proprietary bus used to connect multiple 16900A 16902A frames It physically consists of two connectors input output which cable frames together in a daisy chain configuration It logically allows two or more frames to appear and operate as one large frame A LAN connection between frames is used in addition to the multiframe cable for fast data transfer The bus is physically 18 LVDS differential pairs plus ground The signals are 100 MHz clock SYNC START eight flags RUN UARTS receive and transmit and cable on detection They route from FPGA to FPGA across frames with no other hardware other than termination resistors The UARTS allow frames to communicate at a low level to identify themselves and pass IP addressing information The cable on detection lets the system know when a frame has been added or removed via power up down or cable changes Together these fu
85. t phase of the Windows startup the kernel is loaded along with various system drivers Prior to the video drivers loading video is only displayed to the same video device as the BIOS startup screen Once the video drivers load the resolution will switch and eventually a logon screen will be presented The logon screen will appear on whichever video adapter LCD or external VGA was displaying the Windows desktop when the system was last shut down It is possible on frames with front panels to get a blue rectangle with an Agilent logo in it that says the current display is not active In this situation you can press and hold the Touch Off button on the front panel to switch to the other display At any time either the LCD panel or the external monitor will have the Windows desktop displayed to it It is also possible but not typical for the Windows desktop to be stretched across both the LCD and external monitor The Touch Off front panel button can be pressed and held to force the desktop to use either the LCD or external monitor exclusively By the time Windows has presented the Windows logon screen to the user two critical pieces of Agilent specific software should already be running Logic analyzer device drivers Logic analyzer service The remaining critical piece of Agilent software the GUI application itself does not run until a user has logged onto the machine and started the application by clicking on the 1690
86. tem is unplugged while it is off and then plugged back in the system will not power on until the power button is pressed f the system does not boot the hard disk drive will need to be re imaged Unplugging the Power Cord or Power Loss Unplugging power while the instrument is turned on or a power loss is similar to the long press of the power button with one exception When the system is plugged back in it will power up and boot into Windows 16900A 16902A and 16903A Service Guide 49 6 Replacing Assemblies To remove and replace optional modules or filler panels Locked position 50 The following procedure guides you through installing removing or replacing measurement modules in the logic analysis system frame Information on connecting specific multi card measurement modules can be found in the Installation Guide that came with your frame Measurement modules with different model numbers may not be connected together in multi card Master Expander modules unless stated otherwise See also the service guide that came with your measurement module 1 Perform previous procedures To prepare the instrument for disassembly on page 48 2 Using a 1 4 inch hex socket loosen the thumb screws on the modules or filler panels 3 Rotate the ejector levers from the locked position to the open position 4 Ensure all ejectors are fully open and out of the way 5 Remove filler panels or slide the module
87. to align the bracket when re assembling Guide Pins 16902809 M T10 Screws 6 16900A 16902A and 16903A Service Guide 71 6 Replacing Assemblies To remove and replace the touch screen display assembly 1 Perform previous procedures To prepare the instrument for disassembly on page 48 To remove and replace the cover on page 52 To remove and replace the front panel assembly on page 64 remove and replace the front panel interface board on page 69 To remove and replace the LCD bracket assembly on page 71 2 Pull the touch screen and LCD cables through the slots in the LCD bracket CAUTION Handle the touch screen and LCD display by the edges only If necessary clean with alcohol and a lint free wipe or remove any airborne contamination with ionized air 3 Gently pry the touch screen from the LCD display It is held on with double sided tape 4 Using a Torx T10 screwdriver remove the 4 screws securing the LCD display to the LCD bracket 72 16900A 16902A and 16903A Service Guide Touch Screen Liquid Crystal Display LCD LCD Cable Replacing Assemblies 6 Pink LCD LCD Bracket Slots Long Alignment Pins 6 Screen T10 Screws 6 Cable d 1690e1 5 When re assembling feed the keypad cable and the power On Off cable through the LCD bracket
88. trument for use Chapter 3 Testing Performance gives instructions on how to test the performance of the instrument Chapter 4 Calibrating and Adjusting contains calibration instructions for the instrument Chapter 5 Troubleshooting contains self tests and flowcharts for troubleshooting the instrument Chapter 7 Replaceable Parts lists replaceable parts shows exploded views and gives ordering information Chapter 6 Replacing Assemblies tells how to replace the instrument and assemblies of the instrument and how to return them to Agilent Technologies Chapter 8 Theory of Operation explains how the instrument works and what the self tests are checking Revision History Table 2 Revision History Revision Reason 16900 97010 June 2007 Touch screen controller assembly cable and this version front panel bracket part changes in the 16902A and 16903A logic analysis system frames These part changes appear in serial numbers above 16902A MY43003070 16903A MY43003080 16900 97001 August 2004 First edition 16900A 16902A and 16903A Service Guide 5 16900A 16902A and 16903A Service Guide Contents The Agilent 16900 series Logic Analysis Systems At a Glance Table 1 Model comparisons 3 Supplied Accessories 4 Optional Accessories 4 Service Strategy 4 Contacting Agilent Technologies 4 In this Service Guide 5 Table 2 Revision History 5 1 General Informati
89. ts Ordering 88 Cover Assembly 90 Front Panel Assemblies 91 16900A and 16902A Frames 94 16903A Frame 97 Power Cables and Plug Configurations 100 ES Agilent Technologies 87 7 Replaceable Parts Replaceable Parts Ordering 88 Parts Listed Parts Not Listed To order a part on the list of replaceable parts quote the Agilent Technologies part number indicate the quantity desired and address the order to the nearest Agilent Technologies Sales Office To locate a sales office near you go to http www agilent com find contactus To order a part that is not on the list of replaceable parts include the model number and serial number of the module a description of the part including its function and the number of parts required Address the order to your nearest Agilent Technologies Sales Office To locate a sales office near you go to http www agilent com find contactus Direct Mail Order System Within the USA Agilent Technologies can supply parts through a direct mail order system The advantages to the system are direct ordering and shipment from the Agilent Technologies Part Center There is no maximum or minimum on any mail order There is a minimum amount for parts ordered through a local Agilent Technologies Sales Office when the orders require billing and invoicing Transportation costs are prepaid there is a small handling charge for each order and there are no invoices In order for Agilent Technolog
90. ule Interface Board Top level function The MIB contains all of the logic analyzer frame specific hardware This includes all circuits necessary to interface with measurement modules drive the front panel assembly monitor frame functions and interface to the CPU motherboard via a PCI port It also performs power distribution and numerous interconnects Module bus FPGA The Xilinx XC28400E FPGA is the primary bridge between the CPU and the measurement modules It effectively performs a translation from PCI slot to the proprietary module interface bus This bus includes three module slots plus the I O FPGA Video circuit The video circuit components include a flat panel display controller IC boot ROM and display RAM The controller IC interfaces to the CPU via a PCI port from the PCI board The display mode used is 800x600 pixels 12 bit color with a LVTTL interface to the display assembly 1 0 FPGA The Xilinx XC2V250 FPGA is the center of the instrument I O functions The system interfaces directly to this part in the same way it talks to the three module slots via a 16 bit multiplexed general purpose bus The FPGA is loaded from 16900A 16902A and 16903A Service Guide 125 126 Theory of Operation an on board EPROM at power up The EPROM contents can be changed updated through the system software via a JTAG port A major function of this FPGA component is system correlation time alignment of the three modules a
91. ut is a low frequency 49 KHz signal driven from a LVTTL 50 line driver It is used by an external Time Correlation Fixture to simultaneously trigger multiple frames and oscilloscopes This is then used with a software averaging program to closely correlate the trigger point across instruments 16902A 16903A Front Panel Assembly The 16900A frame does not have a liquid crystal display LCD The identical front panel assembly with LCD is used on both the 16902A six slot logic analyzer and the 16903A three slot logic analyzer The front panel assembly is composed of two PC boards comprising three independently operating sub systems The two PC boards are the front panel interface board and the keypad board The three front panel sub systems are the front panel keyboard front panel LCD display and the front panel touch screen The keypad board is controlled by a programmable microcontroller the Intel 87C51 The ports of this microcontroller are connected to a matrix of push buttons digital knobs and LEDs The microcontroller will scan the buttons and knobs looking for button presses and releases and knob rotations The microcontroller contains a 5 V RS232 interface which is used as the communication interface to the host The logic analyzer software will send command codes to this microcontroller to receive button and knob status and to turn on and off individual LEDs The microcontroller part used is a program once part which is 16
92. wn for cable is Agilent Technologies part number for complete cable including plug These cords are included in the CSA certification approval of the equipment 16900A 16902A and 16903A Service Guide 101 7 Replaceable Parts 102 16900A 16902A and 16903A Service Guide Agilent 16900A 16902A and 16903A Logic Analysis System Service Guide 8 Theory of Operation 16900A and 16902A Systems Block Level Theory 104 16900A 16902A CPU Subsystem 109 16900A 16902A PCI Board 110 16900A 16902A MIB Module Interface Board 111 16900A 16902A Input Output Board 112 16902A 16903A Front Panel Assembly 114 16900A 16902A 16903A Power Up Routine 115 16903A Block Level Theory 120 16903A CPU Subsystem 123 16903A PCl board 124 16903A MIB Module Interface Board 125 16903A 1 0 Input Output Board 127 16903A Front Panel Assembly 128 16903A Power Up Routine 128 ES Agilent Technologies 103 8 Theory of Operation Theory of Operation This chapter describes the theory of operation for the logic analysis system and describes the self tests The information in this chapter is to help you understand how the logic analysis system operates and what the self tests are testing This information is not intended for component level repair 16900A and 16902A Systems Block Level Theory The block level theory includes the theory of operation of the logic analysis system in terms of the major subsystems including CPU subsystem PCI b
93. x rails and will also cause an immediate power down if any one drops below about 90 of regulation Power down can also be caused by an over temperature sense circuit In this case the PLD notifies the CPU the user receives a warning window and a soft power down is started Again the PLD will force a power down if the CPU does not soft power down in about two minutes 16900A 16902A and 16903A Service Guide 109 110 Theory of Operation 16900A 16902A PCI Board PCI bridge The PCI board plugs into a CPU board PCI slot providing the interface between the CPU motherboard and the logic analyzer On the PCI board are two PCI devices which run independently from each other The Windows environment should see the two devices and load a device driver for each A PCI bridge chip is used to provide an electrical interface between the CPU PCI slot bus and the two PCI devices A TI2050A PCI bridge chip is used to connect to the primary PCI bus on the CPU motherboard connector and provides a secondary PCI bus used to connect to the two PCI devices on the PCI board Module FPGA One of the two PCI devices on the PCI board is the 16 bit interface FPGA This 16 bit interface bus is a proprietary 15 MHz backplane used to communicate with logic analyzer modules The module backplane FPGA is a PCI device which bridges from the CPU PCI bus to the logic analyzer backplane A Xilinx Virtex E XCV300E FPGA is used This FPGA is programmed to contain a P

Agilent 16900A, 16902A, and 16903A Logic Analysis System

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