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Instrument Construction and Function Description
R&S ZVB
1145.1078.82 3.36
E-4
Replacing Fuse board A21
(See Chapter 5, Spare Parts List, Item 735, and drawings 1145.1010, 1145.1290)
The fuse board is installed on the left-hand side of the power supply.
Removing the power supply and the fuse board
Turn off the instrument and disconnect from the mains, screw off the 4 rear-panel feet (460) and
pull off the enclosure (400) backwards.
Remove the 2 countersunk screws (796) in the top of the instrument and the 8 sems screws. (795)
in the rear panel of the power supply.
Pull out the power supply unit a little at the rear of the instrument, remove screw (737) and anti-
touch guard (736).
On the left-hand side of the power supply, pull off the fuse board (735) to the left.
Disconnect the two mains cables from the fuse board.
Fitting the new fuse board and the power supply
Connect the mains cables to the fuse board and refit the fuse board to the power supply.
Secure the anti-touch guard (736) with screw (737).
Reinstall the power supply by reversing the removal procedure.
Push the enclosure (400) back on and screw the 4 rear-panel feet (460) into position.
Connect the mains cable, turn on at the mains switch and press the ON key.
Select Service Level 2 (see Service Functions).
When the instrument has been started, check the protocol file for errors
[ INFO : Error Log ]
Содержание ZVB 14
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Страница 58: ...Table of Contents Alignment R S ZVB 1145 1078 82 I 2 2 E 4 ...
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Страница 160: ...1145 1078 82 5 2 E 4 Spare Parts List Mechanical Drawings ...
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Страница 189: ...1145 1078 82 5 19 E 4 Block Circuit Diagram ...
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