Specifications
Table Of Contents
- General Information
- Preparing for Use
- To inspect package contents
- To connect power
- To connect the mouse, keyboard, LAN, printer, and GPIB cable
- To connect the standard 10073C probes
- To connect optional InfiniiMax oscilloscope probes
- To connect the digital probe
- Digital probe lead set
- To tilt the oscilloscope upward for easier viewing
- To turn on the oscilloscope
- To turn off the oscilloscope
- To verify basic oscilloscope operation
- Installing application programs on Infiniium
- Changing Windows System Settings
- To clean the oscilloscope
- Testing Performance
- Calibrating and Adjusting
- Troubleshooting
- To install the fan safety shield
- To troubleshoot the oscilloscope
- Primary Trouble Isolation
- No Display Trouble Isolation
- To check the backlight inverter voltages
- To check the display board video signals
- Power Supply Trouble Isolation
- To check probe power outputs
- To Check the keyboard
- To check the LEDs
- To check the motherboard, CPU, and RAM
- To setup the BIOS
- To troubleshoot the acquisition system
- Software Revisions
- Replacing Assemblies
- To return the oscilloscope to Agilent Technologies for service
- To remove and replace the top cover
- To remove and replace the bottom sleeve
- To disconnect and connect Mylar flex cables
- To remove and replace the CD-ROM drive
- To remove and replace the AutoProbe assembly
- To remove and replace the internal digital input cable (MSO models only)
- To remove and replace the backlight inverter board
- To remove and replace the front panel assembly
- To remove and replace the keyboard, touch screen, and flat-panel display assemblies
- To remove and replace the acquisition board assembly
- To remove and replace the PCI bridge board
- To remove and replace the display board
- To remove and replace the hard disk drive
- To remove and replace the motherboard
- To replace the Intel motherboard with the ADLINK motherboard
- To remove and replace the power supply
- To remove and replace the fan controller board
- To remove and replace a fan
- To remove and replace the probe power and control assembly
- Replaceable Parts
- Theory of Operation
- Index
Chapter 5: Troubleshooting
Power Supply Trouble Isolation
84
Figure 5-7
Power Supply Voltage Test Locations (A13)
Table 5-8 Power Supply Voltage Limits
B
Turn off the power and measure the power supply resistances to ground to check for
shorted supply lines.
You can probe the test points on A13, shown in See Figure 5-7, for this resistance check.
C
Replace any shorted assembly.
You can locate the shorted assembly by disconnecting assemblies from the power supply, one at
a time.
D
Replace the power supply.
1 If there are no shorted assemblies, but the power supply will not power up correctly,
replace the power supply. See Chapter 6, “Replacing Assemblies,” for an explanation of
how to remove and replace the power supply.
2 Re-assemble the oscilloscope and apply power.
E
Check for the oscilloscope display on screen.
1 You should see the oscilloscope display (See Figure 5-2). If not, see “No Display Trouble
Isolation” on page 79.
2 If you see the display, return to the Primary Trouble Isolation Flowchart.
Supply Voltage Specification Limits
+5.1 V ± 0.1 V +5.0 V to +5.2 V
-5.2 V ± 0.1 V -5.1 V to -5.3 V
+12.1 V ± 0.3 V +11.8 V to +12.4 V
-12.1 V ± 0.3 V -11.8 V to -12.4 V
+3.3 V ± 0.1 V +3.2 V to + 3.4 V
Reconnect Assemblies and Cables
Reconnect all assemblies after testing. The oscilloscope must have all cables connected for correct power
up.