Instrument Construction and Function Description R&S ZVB
1145.1078.82 3.48 E-4
Replacing the Coupler Unit (R&S ZVB20 only)
(
See Chapter 5, Spare Parts List, drawing 1145.1010, item 200)
Opening the instrument and removing the coupler
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 instrument base cover (297) after undoing the 12 countersunk screws (299).
Remove the 4 screws in the front handles (410), right and left, and take off the front handles
Remove 3.5 mm connection cables (only with option R&S ZVBx-B16)
Remove the countersunk screw (390) next to the display and pull off the front cover forwards
Disconnect the 3 RF cables and the bias cable from the coupler
Remove the 4 screws (181, 186, 220) in the front of the instrument next to the port connector and
take out the coupler.
Fitting the new coupler unit and reassembling the instrument
Insert the coupler into the instrument and screw in the 4 screws (181, 186, 220).
Reconnect the 3 RF cables and the bias cable.
Fit the instrument base cover (297) and secure with 12 countersunk screws (299).
Refit the front cover and screw in the countersunk screw (390).
Refit the front handles (410).
Refit 3.5 mm connection cables (only with option R&S ZVBx-B16)
Push the enclosure (400) back on and screw the 4 rear-panel feet (460) into position.
Connect the mains cable and turn on at the mains switch. The instrument is now in standby mode
Select Service Level 2 (see Service Functions).
When the instrument has been started, check the protocol file for errors:
[ INFO : Error Log ]
Record generator and receiver correction data (see Recording Correction Data).
Perform factory system error calibration (see Factory System Error Calibration).
To Next Page
Loading...
