CAUTION: To prevent damage from electrical arcing, ensure that circuit boards and components are dry before applying power to
the instrument.
Table 2: Internal inspection checklist
Item
Inspect for
Repair action
Circuit boards
Loose, broken, or corroded solder
connections. Burned circuit boards. Burned,
broken, or cracked circuit-run plating.
Remove and replace damaged circuit board.
Resistors
Burned, cracked, broken, blistered condition.
Capacitors
Damaged or leaking cases. Corroded solder
on leads or terminals.
Wiring and cables
Loose plugs or connectors. Burned, broken,
or frayed wiring.
Firmly seat connectors. Replace defective
cables.
Chassis
Dents, deformations, and damaged
hardware.
Straighten, repair, or replace defective
hardware.
Lubrication
There is no periodic lubrication required for this instrument.
Returning the instrument for service
When repacking the instrument for shipment, use the original packaging. If the packaging is unavailable or unfit for use, contact your local
Tektronix representative to obtain new packaging.
Seal the shipping carton with an industrial stapler or strapping tape.
Before returning the instrument for service, contact the Service Center to get an RMA (return material authorization) number, and any
return or shipping information you may need.
If the instrument is being shipped to a Tektronix Service Center, enclose the following information:
• The RMA number.
• The owner's address.
• Name and phone number of a contact person.
• Type and serial number of the instrument.
• Reason for returning.
• A complete description of the required service.
Mark the address of the Tektronix Service Center and the return address on the shipping carton in two prominent locations.
Maintenance
5 Series MSO Service Manual MSO54, MSO56, MSO58
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