Tektronix TLA5201, Service Manual

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Troubleshooting
6- 38
TLA5000 Series Service Manual
Check for Common Problems
Use Table 6--2 to quickly isolate possible failures. The table lists problems
related to the logic analyzer and possible causes. The list is not exhaustive, but it
may help you eliminate a problem that is quick to fix, such as a loose cable.
Table 6- 2: Failure symptoms and possible causes
Symptom Possible cause(s)
Logic analyzer will not turn on
H
Power cord not plugged in
H
Faulty power supply
Logic analyzer turns on but
one or more fans will not
operate
H
Faulty fan cable
H
Defective fan assembly
H
Faulty power supply
H
Faulty fan controller circuitry on the interface board
Controller appears “dead”;
power light comes on, but
monitor screens is (are) blank,
logic analyzer emits no beeps
H
DIMMs incorrectly installed or missing
H
Defective mother board
H
CMOS settings may have the primary video adapter
switched from PCI to AGP. Check CMOS settings.
External monitor does not
power on
H
Monitor power cord not plugged in
H
Failed fuse
H
Monitor failure
External monitor powers on,
but is blank
H
External monitor controls turned down
H
Monitor cable faulty or not connected to logic analyzer
H
Monitor defective
H
Check Windows display properties to see if the external
monitor is enabled
Hard disk drive related
symptoms
H
Defective hard disk drive
H
Incorrect hard disk type selected in the BIOS setup
H
Power supply failure
H
Controller BIOS setup problem. See BIOS Settings
H
Loose cable
H
Faulty motherboard
CD-RW ROM related symp-
toms
H
Defective CD-RW ROM
H
Defective ribbon cable from PC mother board to CD-RW
ROM adapter board
H
Defective CD-RW ROM power cable
H
Defective CD-RW ROM adapter board
H
Incorrect CD-RW ROM configuration in the BIOS setup