Tektronix 070-9778-03, Руководство по обслуживанию

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Troubleshooting
TLA 711 Color Benchtop Controller Service Manual
6–25
Table 6–6: Failure symptoms and possible causes
Symptom Possible cause(s)
Mainframe does not power
on
H
Power connection faulty, check or substitute the power cord.
H
Fuse blown, check the line fuse on the benchtop chassis.
H
Benchtop chassis power supply failure, refer to the TLA 711
Benchtop Chassis Service Manual for troubleshooting
procedures.
Benchtop controller fails to
boot up
Benchtop controller not
operating
H
Benchtop controller may not be not fully inserted, make sure the
front of the benchtop controller is flush with front panel. Reseat
the benchtop controller if necessary.
H
Benchtop chassis power supply failure, refer to the TLA 711
Benchtop Chassis Service Manual for troubleshooting
procedures.
H
Corrupted module firmware, reinstall firmware. Refer to
Upgrading Module Firmware in the TLA 700 Series Installation
Manual.
Module(s) not recognized
H
Refer to the appropriate module(s) service manual.
SYSTEM FAIL
indicator is red
H
Benchtop controller may not be not fully inserted, make sure the
front of the benchtop controller is flush with front panel. Power
off the benchtop chassis and reseat the benchtop controller.
H
Follow the troubleshooting procedure and primary
troubleshooting tree.
H
Benchtop chassis or benchtop controller failure, refer to the
troubleshooting procedure in this manual for the benchtop
controller, refer to the TLA 711 Benchtop Chassis Service
Manual for troubleshooting procedures for the benchtop
chassis.
Monitor does not power on
H
Verify monitor power cord is plugged in.
H
Failed fuse.
H
Monitor failure.
Benchtop controller
appears to have no power
H
Benchtop controller may not be not fully inserted, make sure the
front of the benchtop controller is flush with front panel. Power
off the benchtop chassis and reseat the benchtop controller.
H
Memory SIMMs incorrectly installed, missing, or defective.
H
Defective controller board or adapter board.
H
Benchtop controller power connector loose or defective.
Monitor display is blank
(no raster)
H
Monitor SVGA cable not connected or defective.
H
External monitor controls (brightness) turned down.
H
Monitor defective.