Tektronix TLA7XM, Руководство пользователя

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Maintenance
6- 4
TLA721 Benchtop & TLA7XM Expansion Mainframe Service Manual
Table 6- 2: Internal inspection check list
Item Inspect for Repair action
Circuit boards Loose, broken, or corroded
solder connections. Burned
circuit boards. Burned, broken,
or cracked circuit-run plating. Return to a Tektronix Service Center.
Resistors Burned, cracked, broken,
blistered condition. Return to a Tektronix Service Center.
Solder connections Cold solder or rosin joints. Return to a Tektronix Service Center.
Capacitors Damaged or leaking cases.
Corroded solder on leads or
terminals. Return to a Tektronix Service Center.
Wiring and cables Loose plugs or connectors.
Burned, broken, or frayed
wiring. Firmly seat connectors. Repair or replace
parts with defective wires or cables.
Chassis Dents, deformations, and
damaged hardware. Straighten, repair, or replace defective
hardware.
CAUTION.
To prevent damage from electrical arcing, ensure that circuit boards
and components are dry before applying power to the expansion module.
Use a dry, low-velocity stream of air to clean the interior of the modules and the
mainframes. Use a soft-bristle brush for cleaning around components. If you
must use a liquid for minor interior cleaning, use a 75% isopropyl alcohol
solution and rinse with deionized or distilled water.
Clean the exterior (face) of the floppy disk drive, CD-ROM, and replaceable
hard disk drive cartridge on the benchtop controller with a soft, clean cloth and a
mild detergent.
To clean the floppy disk drive or the CD-ROM, use commercially available
floppy disk drive or CD-ROM drive cleaning kits and follow the manufacturer’s
instructions.
Interior Cleaning
Procedure