Agilent Technologies 8133A Manuel de service Page 176
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176 16800 Series Portable Logic Analyzers Service Guide
8 Theory of Operation
configuration utility and switch the Windows desktop from one
display adapter to the next. 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 open
Intel's configuration utility which can force the desktop to use
either the LCD or external monitor exclusively.
By the time Windows has presented the Windows logon screen,
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 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.
- Agilent 16800 Series 1
- Portable Logic Analyzers 1
- Model Comparison 3
- Features, Logic Acquisition 3
- Features, Mainframe 4
- Features, Pattern Generator 4
- Supplied Accessories 4
- Optional Accessories: 4
- Service Strategy 4
- In this Service Guide 6
- 4 Calibrating and Adjusting 8
- 7 Replaceable Parts 10
- 8 Theory of Operation 10
- Contents 11
- General Information 13
- Accessories 14
- Specifications 15
- Characteristics 16
- Non-Operating Environment 17
- Dimensions 18
- Recommended Test Equipment 19
- 1 General Information 20
- Preparing for Use 21
- To inspect the logic analyzer 22
- To apply power 22
- To clean the instrument 23
- To start the user interface 23
- To test the logic analyzer 23
- 2 Preparing for Use 24
- Testing Performance 25
- To perform the power-up tests 26
- Logic Analyzer Test Strategy 27
- 3 Testing Performance 28
- Testing Performance 3 31
- Equipment Required 34
- Perform System Self-Tests 36
- Set Up the Test Equipment 37
- Connect the Test Equipment 39
- Deskew the oscilloscope 42
- Set the 8133A pulse width 43
- Configure the Logic Analyzer 45
- Run eye finder 49
- To re-align a stray channel 50
- Test Pod 1 in 250 Mb/s Mode 52
- Test Pod 2 in 250 Mb/s Mode 57
- Test the remaining pods 59
- Test Pod 1 in 500 Mb/s Mode 60
- Test Pod 2 in 500 Mb/s Mode 64
- Conclude the State Mode Tests 66
- Performance Test Record 68
- Calibrating and Adjusting 69
- Calibration Strategy 70
- Troubleshooting 71
- Try , and then 75
- Power Supplies 84
- To run the self-tests 88
- Bit#: 39 - 16 15 - 8 7 - 0 92
- Clock Test 93
- Simple RAM Test 93
- RAM Persistence Test 94
- Marching Bits RAM Test 94
- Wait Test 94
- Instruction Interrupt Test 95
- To exit the test system 96
- 5 Troubleshooting 100
- Set up the test equipment 101
- Connect the test equipment 101
- Threshold 102
- Troubleshooting 5 109
- Clock Frequency of 100 MHz 111
- Click Run Rep 111
- Replacing Assemblies 113
- Replacement Strategy 114
- Tools Required 114
- To save the license file 115
- To power off the system 116
- Replacing Assemblies 6 117
- 6 Replacing Assemblies 118
- 600 watt power supply 119
- Secondary power supply 120
- 60 mm fan 144
- 92 mm fans 145
- Returning Assemblies 148
- FRAGILE 149
- Replaceable Parts 151
- Ordering Replaceable Parts 152
- System Replaceable Parts List 155
- Replaceable Parts 7 159
- • A — Assembly 163
- • MP — Mechanical Part 163
- • W — Cable 163
- Theory of Operation 167
- System Block Level Theory 168
- Module Interface Board (MIB) 169
- CPU Subsystem 170
- PCI board 171
- MIB (Module Interface Board) 171
- Module Bus FPGA(s) 172
- I/O FPGA 172
- Theory of Operation 8 173
- Front Panel Assembly 174
- Power Up Routine 175
- Product install 178
- Software recovery methods 178
- Self Test 179
- Comparators 181
- Acquisition IC 181
- Master/Expander Connectors 182
- Instruction Memory 183
- Data Memory 183
- Output Driver 184
- Clock Circuit 184
- CPU Interface 184
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