HP 8114A - Variable Baseline (Option 001)

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HP 8 114A Service Guide

Variable Baseline (Option 001)

There are no recommended troubleshooting procedures available. If

the fault can be localized on the variable baseline module, replace the

module with a new module.

Troubleshooting

5.21

Main Page

Table of Contents5
Replacing the Fuse15
Power Cable16
Rack-Mounting Accessories17
Ventilation Requirements17
Thermal Protection17
Overheating Detection17
Operating Environment18
Installing Upgrades19
How to Make a Firmware Update for HP 8114A20
Supported Hardware20
Procedure20
Memory Sizes22
EEPROM and RAM Sizes on the PC Boards22
Restoring Default Settings22
Using the HP-IB Device Command22
Overwriting Settings22
Firmware Upgrade Cards23
Memory Card Sizes23
HP 8114A Pulse Generator Specifications25
General25
Environmental25
Safety25
Power Requirements25
Maximum Dimensions (H X W X D)25
Weight25
Net25
Shipping25
Recalibration Period26
Warranty26
Acoustic Noise Pressure26
Declaration of Conformity27
We Declare that the Product27
Supplementary Information27
Output28
Amplitude28
Range28
Current28
Accuracy28
Resolution28
Baseline28
Variable Baseline (Option 001)28
Polarity29
Source Impedance29
Load Compensation29
Connector29
On/Off29
Output Protection29
Limits29
Pulse Performance29
Overshoot/Preshoot/Ringing29
Settling Time29
Pulse Timing30
Repeatability30
Period30
Range30
Accuracy30
Resolution30
RMS-Jitter30
Width30
Duty-Cycle31
Standard HP 8114A (Baseline = 0 V)31
Variable Baseline Option 00132
Delay33
Fixed Delay33
Variable Range33
Accuracy33
Resolution33
RMS-Jitter33
Double Pulse Delay33
Minimum Period33
Range33
Trigger Output34
Level34
Output Impedance34
Testing the HP 8114A37
Introduction37
Conventions Ijsed37
Test Results Tables37
Recommended Test Equipment and Accessories38
50 0, 10 W Feedthrough Termination39
Getting Started39
Instrument Serial Numbers39
The Product and Serial Number Screen with Variable40
Test 1: Period41
Test Specifications41
Equipment Needed41
Procedure41
Test 2: Width43
Test Specifications43
Equipment Needed43
Procedure43
Test 3: Delay46
Test Specifications49
Procedure49
Test 4: Double Pulse Delay49
Equipment Needed49
Procedure53
Test 5: Jitter53
Test 5.1: Period Jitter53
Test Specifications53
Equipment Needed53
Test 5.2: Width Jitter56
Test Specifications56
Equipment Needed56
Procedure56
Test 5.3: Delay Jitter59
Test Specifications59
Equipment Needed59
Procedure59
Test 6: Amplitude61
Test Specifications61
Equipment Needed61
Calculating out Measurement Uncertainties61
A) Calculation for 500 into 5061 Measurements62
Procedure62
Equipment Set-Up 2 for Amplitude Test63
B) Calculation for HIZ (High-Z) into 5062 Measurements64
Procedure64
Procedure67
B) Amplitude Test (from HIZ {High-Z} into 500)68
Procedure68
Test 7: Variable Baseline (Option 001)70
Test Specifications70
Equipment Needed70
Procedure70
Test 8: Transition Time72
Test Specifications72
Equipment Needed72
Test &La: Leading Edge Test73
Procedure73
Test &Lb: Trailing Edge Test74
Procedure74
Test 8.2A: Leading Edge Test75
Procedure75
Test 8.2B: Trailing Edge Test76
Procedure76
Test 9: Pulse Aberration Test77
Equipment Needed77
Procedure77
Preshoot78
HP 8114A Performance Test Records80
Disassembly and Reassembly91
ESD Protection91
Terms Used and What They Mean92
The Tools You Need92
Inside the HP 8114A93
Instructions for Replacing or Retrofitting HP 8114A Subassemblies94
Removing the Instrument Cover95
Refitting the Instrument Cover95
Rear Panel View Showing Cover Fixing Screws95
Removing the Power Supply96
Rear Panel View Showing the Lever Point for the Screw96
Power Supply and Primary Section Shielding Location96
Refitting the Power Supply97
Removing the Variable Baseline (if Option 001 Is Installed)98
Refitting the Variable Baseline98
Location of the Variable Baseline (Option 001)98
Removing the Power Supply Fan99
Refitting the Power Supply Fan100
Removing the Microprocessor Board101
Location of the Microprocessor Board101
Top View Showing the Microprocessor Securing Screws101
Refitting the Microprocessor Board102
Removing the Timing Board103
Refitting the Timing Board103
Removing the Output Board104
Location of the Power Load Resistor and Power FET105
Refitting the Output Board106
Information to the Replacement Output Board106
Removing the Output Board Fan107
Refitting the Output Board Fan107
Removing the Motherboard108
Location of the Motherboard108
Refitting the Motherboard109
Removing the Memory-Card Connector Board110
Refitting the Memory-Card Connector Board110
Location of the Memory-Card Connector Board110
Removing the Front Panel111
How to Remove PC Boards from Plastic Support Clips112
Front Panel Subassemblies112
The Front Panel Subassemblies113
Removing the Front Panel Subassemblies114
Replacing or Refitting the Front Panel Subassemblies116
How to Fit PC Boards into Plastic Support Clips116
Points to Observe When Refitting or Replacing Front Panel Subassemblies116
Replacing or Refitting the Motherboard117
Troubleshooting119
Selftest120
Power-Up Selftest120
Extended Selftest120
Confidence Level120
Microprocessor Selftest Failure Messages120
Signal Boards Selftest121
Timing Board Selftest121
Timing Board Selftest Failure Messages122
Output Board Selftest122
Output Board Selftest Failure Messages122
Initial Tests123
Getting Started with Troubleshooting the HP 8114A123
Power Supply Board124
The Power Supply Board124
Getting Started125
Power Supplies126
Fixed Supplies126
Floating Supplies127
Microprocessor Board128
Timing Board130
Supply Voltages130
Supply Voltages Testpoints on the Timing Board130
Trigger Input131
Period Generator131
Check for the Supply Voltages131
Check the Current Sources for the Period Generator131
Delay Generator131
Check the Current Sources for the Delay Generator131
Width Generator132
Check for the Supply Voltages132
Check the Current Sources for the Width Generator132
Edge Interface132
Differential Signal Output133
Inhibit Input133
Trigger Output133
Output Board134
Onboard Regulators134
Fixed Supply134
Floating Supplies134
Optocoupler136
Amplifier Dacs136
Hybrid Stage137
Variable Floating Supply (UFLVAR)138
Relays138
Variable Baseline (Option 001)139
HP 8114A Error Messages and Status Register Contents140
Error Messages140
Register Usage160
Warning Messages161

HP 8114A - Variable Baseline (Option 001)

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