Service Level; Fault Isolation Procedure; Table 4-16: Failure Symptoms And Possible Causes - Tektronix MSO70000 Series Service Manual

Troubleshooting (MSO/DPO5000 Series)

Service Level

Check for Common
Problems

Fault Isolation Procedure

4–46
This section contains information and procedures designed to help you isolate
faulty modules in the MSO5000 Series and DPO5000 Series instruments. If a
module needs to be replaced, follow the instruction provided in this section. (See
page 4-14, Module Removal (MSO/DPO5000 Series).).
Use the following table to quickly identify common problems, such as a blown
fuse or loose cable.

Table 4-16: Failure symptoms and possible causes

Symptom
Instrument will not power on
Front panel light comes on
(instrument powers on), but one
or more fans will not operate
Hard disk drive related
symptoms
Flat- panel display blank
BIOS error messages
Use the troubleshooting tree for fault isolation. (See Figure 4-9 on page 4-47.)
MSO70000/C, DSA70000B/C, DPO70000B/C, DPO7000, MSO5000, DPO5000 Series
Possible cause(s)
Power cord not plugged in
Faulty power supply
Faulty COM-E Interface board
Faulty fan cable
Defective fan assembly
Faulty power supply
Faulty Main board
Faulty COM-E module
Defective hard disk drive
Incorrect hard disk type selected in the BIOS setup
Replaceable hard disk drive not installed
Power supply failure
Corrupted BIOS module firmware, reinstall firmware
Corrupted OS image
Defective cable from Main board to display
Defective cable from Main board to backlighting
display lamp
Defective backlighting display lamp
Faulty display
Faulty COM-E module
Faulty COM-E Interface board
Refer to the BIOS error message information.