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Maintenance and support
R&S
®
MXO 4 Series
729User Manual 1335.5337.02 ─ 05
18 Maintenance and support
The instrument does not need periodic maintenance. Only the cleaning of the instru-
ment is essential.
To protect the front panel and to transport the instrument to another workplace safely
and easily, various accessories are provided. Refer to the data sheet for available cov-
ers and cases and their order numbers.
18.1 Cleaning
How to clean the product is described in "Cleaning the product" on page 19.
Do not use any liquids for cleaning. Cleaning agents, solvents, acids and bases can
damage the front panel labeling, plastic parts and display.
18.2 Changing fuses
If the product does not start, it is possible that a blown fuse is the cause.
The product is protected by 2 fuses of type Size 5x20 mm, 250V~, T5H (slow-blow),
IEC 60127-2 (order no. 0099.6735.00).
1.
WARNING! The fuse is part of the main power supply. Handling the fuse while the
power is on can lead to electric shock.
Before changing the fuse:
a) Set the switch on the power supply to position [0].
b) Disconnect the product from the power source.
2. The fuse slot is on the rear panel between the main power switch and AC power
supply connector.
Pull out the fuse holder out of its slot.
3. Check the condition of the fuse.
4. Replace the blown fuse. Only use a fuse of the specified type.
5. Insert the fuse holder into its slot until it latches.
18.3 Contacting customer support
Technical support – where and when you need it
For quick, expert help with any Rohde & Schwarz product, contact our customer sup-
port center. A team of highly qualified engineers provides support and works with you
Contacting customer support
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