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Board Replacement
R&S ZVB
1145.1078.82 3.42
E-1
Replacing Frequency Reference Board
A100
(See Chapter 5, Spare Parts List, Item 120 and drawings 1145.1010, 1145.1770)
Opening the instrument and replacing the board
¾
Turn off the instrument and disconnect from the mains, screw off the 4 rear-panel feet (460) and
pull off the enclosure (400) backwards.
¾
Lift off the instrument top cover (296) after undoing the 23 (2 ports) or the 28 (4 ports) countersunk
screws (298).
¾
Extract the frequency reference board (120).
Installing the board and reassembling the instrument
¾
Insert the new board into the instrument
¾
Refit the instrument top cover (296) with the 23 (2 ports) or the 28 (4 ports) countersunk screws
(298).
¾
Push the enclosure (400) back on and screw the 4 rear-panel feet (460) into position.
¾
Connect the mains cable and turn on at the mains switch. The instrument is now in the standby
mode
¾
Select Service Level 2 (see Service Functions).
¾
When the instrument has been started, check the protocol file for errors:
[ INFO : Error Log ]
Содержание ZVB 4
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