Procedure
1. Use a T
-10 Torx screwdriver to remove the eight screws from the main fan assembly bracket and rear chassis.
2. Remove the main fan assembly from the rear chassis.
3. T
o remove the fan from the bracket, carefully pull the fan from each corner of the bracket to disconnect the elastic fan attachments.
4. To reinstall, reverse the steps. Install the fan on the bracket in the correct orientation for the fan power cable (see photo). Use a needle
nose plier to reinstall the fan elastic attachments on each corner. Tighten the T-10 Torx screws to 0.65 N·m when reinstalling.
Troubleshooting 5 Series B MSO
CAUTION: Before performing this or any other procedure in this manual, read the General Safety Summary and Service Safety
Summary found at the beginning of this manual.
T
o prevent possible injury to service personnel or damage to electrical components, please read information on Preventing ESD.
(See Preventing ESD on page 14.)
This section contains information and procedures designed to help you isolate faults to a module.
This section requires that service personnel have the appropriate skills to work on this instrument, including PC troubleshooting and
Microsoft Windows operating system skills. Details of PC and Windows operation and service are not in this manual.
For assistance, contact your local Tektronix Service Center.
Service level
This subsection contains information and procedures to help you determine if a faulty power supply is the problem with your instrument. If
replacing the power supply does not fix the fault, you will need to return the instrument to a Tektronix Service Center for repair, as no other
internal electronic assemblies or modules are user-replaceable.
Maintenance
5 Series B Mixed Signal Oscilloscope Service Manual MSO54B, MSO56B, MSO58B 29
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