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46
Chapter 2
Overall Troubleshooting
Troubleshooting Power-up Problems
Troubleshooting Power-up Problems
CAUTION
If the instrument shows any of the following symptoms,
immediately
unplug the instrument from the ac power line:
• Smoke or unusual noise from inside the unit.
• A circuit breaker or fuse on the main ac power line opens.
These potentially serious faults must be corrected before proceeding.
Refer to
“Troubleshooting Power-up Problems” on page 46
NOTE
Power-up problems include an instrument failing to boot, an instrument
that completes the boot process but displays error messages, or an
instrument that appears to be inoperative (dead)
.
When powered up the instrument performs a boot process and CPU
self-diagnostics, followed by a routine of internal auto-alignments.
These tests evaluate the instrument operation; if a problem is detected
an error message will be displayed, or the rear panel LEDs will indicate
a problem.
Table 2-1
Initial Symptoms
Symptom
Troubleshooting Section
No front or rear panel LEDs
"Troubleshooting Power-up Problems" on page 46
Blank display screen
"Troubleshooting Power-up Problems" on page 46
Fans not operating
"Troubleshooting Power-up Problems" on page 46
Instrument did not boot
"Troubleshooting Power-up Problems" on page 46
Power-on auto-align tests failed
"Troubleshooting Using Auto-Align Tests" on page 49
No response when keypad is pressed
"Troubleshooting Power-up Problems" on page 46
Error Messages
“Instrument Messages and Functional Tests” guide
Low signal level
“RF Assembly Quick Check - E4440A, E4443A,
E4445A” on page 75
For E4446A and E4448A see
Содержание E4440A
Страница 12: ...12 Contents...
Страница 13: ...13 1 Overview...
Страница 42: ...42 Chapter1 Overview Contacting Agilent Technologies...
Страница 43: ...43 2 Overall Troubleshooting...
Страница 69: ...69 3 Troubleshooting the RF Section E4440A E4443A E4445A...
Страница 88: ...88 Chapter3 Troubleshooting the RF Section E4440A E4443A E4445A RF Section Description E4440A E4443A E4445A...
Страница 89: ...89 4 Troubleshooting the RF Section E4446A E4447A E4448A...
Страница 110: ...110 Chapter4 Troubleshooting the RF Section E4446A E4447A E4448A RF Section Description E4446A E4447A E4448A...
Страница 111: ...111 5 Troubleshooting the Synthesizer Section...
Страница 125: ...125 6 Troubleshooting the IF Section...
Страница 144: ...144 Chapter6 Troubleshooting the IF Section Verifying the A7 Digital IF Board...
Страница 145: ...145 7 Troubleshooting the Processor Power Supply and Display...
Страница 165: ...165 8 Hardware Options...
Страница 171: ...Chapter 8 171 Hardware Options Verifying Option 110 Figure 8 2 Preamplifier Pin Out and Expected Voltage Levels...
Страница 184: ...184 Chapter8 Hardware Options Verifying Option 122 or 140 Wide Bandwidth Digitizer...
Страница 186: ...186 Chapter8 Hardware Options Verifying Option 122 or 140 Wide Bandwidth Digitizer...
Страница 194: ...194 Chapter8 Hardware Options Overview and Verification of Option 123 Microwave and Millimeter Preselector Bypass...
Страница 196: ...196 Chapter8 Hardware Options Overview and Verification of Option 123 Microwave and Millimeter Preselector Bypass...
Страница 202: ...202 Chapter8 Hardware Options Overview and Verification of Option 123 Microwave and Millimeter Preselector Bypass...
Страница 206: ...206 Chapter8 Hardware Options Verifying Option 124 Y Axis Video Out...
Страница 207: ...207 9 Block Diagrams...
Страница 211: ...Chapter 9 211 Block Diagrams Signal Mnemonics Figure 9 1 Graphic Symbols...
Страница 212: ...212 Chapter9 Block Diagrams Overall Block Diagrams Overall Block Diagrams...
Страница 214: ...214 Chapter9 Block Diagrams Overall Block Diagrams...
Страница 216: ...216 Chapter9 Block Diagrams Overall Block Diagrams...
Страница 217: ...Agi l ent MOTHERBOARD E4440 60001 se860a...
Страница 218: ...218 Chapter9 Block Diagrams Overall Block Diagrams...
Страница 220: ...220 Chapter9 Block Diagrams Overall Block Diagrams...
Страница 221: ...221 10 Replaceable Parts Lists and Locations...
Страница 252: ...252 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 4 Major Assemblies...
Страница 254: ...254 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 5 RF Section E4440A E4443A E4445A Standard...
Страница 256: ...256 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 6 YTO Assembly...
Страница 258: ...258 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 7 RF Input Connector E4440A E4443A E4445A...
Страница 260: ...260 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 8 RF Section Cables E4440A E4443A E4445A Standard...
Страница 267: ...Chapter 10 267 Replaceable Parts Lists and Locations Hardware...
Страница 268: ...268 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 14 RF Section E4446A E4447A E4448A Standard...
Страница 284: ...284 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 22 Option Driver Board and Cables...
Страница 292: ...292 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 27 Front Panel Parts...
Страница 298: ...298 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 32 Rear Frame Hardware...
Страница 300: ...300 Chapter10 Replaceable Parts Lists and Locations Hardware Figure 10 33 Mid Web Parts Figure 10 34 Fan Guard...
Страница 304: ...304 Chapter10 Replaceable Parts Lists and Locations Hardware...
Страница 305: ...305 11 Assembly Replacement Procedures...
Страница 321: ...Chapter 11 321 Assembly Replacement Procedures RF Section E4440A E4443A E4445A Figure 11 9 RF Section Cables Standard...
Страница 337: ...Chapter 11 337 Assembly Replacement Procedures RF Section E4446A E4447A E4448A Figure 11 21 RF Section Removal...
Страница 340: ...340 Chapter11 Assembly Replacement Procedures RF Section E4446A E4447A E4448A Figure 11 24 RF Section Cables Standard...
Страница 379: ...Chapter 11 379 Assembly Replacement Procedures A23 Disk Drive Figure 11 45 Disk Drive and Motherboard Removal...
Страница 380: ...380 Chapter11 Assembly Replacement Procedures A23 Disk Drive Figure 11 46 Disk Drive Board Removal...
Страница 383: ...Chapter 11 383 Assembly Replacement Procedures A25 Motherboard Figure 11 47 Bottom Screws...
Страница 405: ...Chapter 11 405 Assembly Replacement Procedures Front Frame Subassemblies Figure 11 63 Keypad Parts...
Страница 409: ...409 12 Post Repair Procedures...
Страница 429: ...429 13 Firmware Upgrades...
Страница 432: ...432 Chapter13 Firmware Upgrades Firmware Upgrades Including Measurement Personality Upgrades...