Tektronix MSO56B - Instrument Self Tests; Software Updates; Power Supply Module Replacement

e) Measure for +12 V
DC
between chassis (ground) and pins 1 through 4 and pins 1
1 through 15 on J3203.
If all these pins have +12 V
DC
present, then the power supply is working correctly. Disconnect the AC power cord, reassemble the
instrument, and return the instrument to a Tektronix Service Center for repair.
Instrument self tests
The instrument runs self test diagnostics during every power on. The power on self tests ensure that the hardware and software are
functionally working. The tests provide limited diagnostic information, and provide no performance information.
If the instrument detects errors during power on, a pop-up message indicates that a failure has occurred. To display the self test menu and
results, select Utility > Self Test. Select a test mode and run the self tests. If you continue to get errors on one or more tests, you will need
to return the instrument to your nearest Tektronix Service Center for repair.
Software updates
To update the application software:
1. Go to www.tek.com/product-support.
2. Enter a model number (MSO54B, MSO56B, or MSO58B) in the Enter Product or Product Series Name field and click Go. Any 5 Series
B model number will do, as all models use the same software update.
3. Click the Software tab.
4. On the oscilloscope, tap Help > About.
5. Compare the version number of the installed software to the version on the web:
a. If the version number on the oscilloscope is the same as the version on the web, you have the latest version. You do not need to
install new software. Exit this procedure.
b. If the version number on the oscilloscope is a lower number than the version on the web, you can download and install new
software. Continue with the rest of this procedure.
6. Select the highest-numbered version (5 Series B MSO Embedded OS Firmware - VX.X).
7. Click Download File to start the download.
8. When done downloading, unzip the downloaded file.
9. Open the file install.txt and follow the instructions in the file.
Power supply module replacement
After removal and replacement of the power supply module, you must perform the Performance Verification procedures, found in the
Specifications and Performance Verification manual (Tektronix part number 077-1306-xx). Download this manual from the Tektronix Web
site (www.tek.com).
If the instrument fails the Performance Verification tests, it must be returned to a Tektronix Service Center for adjustment.
Maintenance
34