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Module Replacement
R&S FSP
1164.4556.82 3.30
E-1
Replacing the RF Input Connector (Cable W1)
(See chapter 5, spare parts list, items 295, 310, 315, 322, and explosion drawing 1164.4391.)
The RF input connector is fitted at the right lower side of the front panel.
Depending on the frequency range two different models of the connector are available.
Opening the Instrument and Removing the Cable W1
Switch off the instrument, pull the mains plug, unscrew the 4 rear-panel feet (450) and push the tube
(410) backwards and take off.
Unscrew the four screws (430) of the front handles on both sides and take off the front handles.
Remove the volume control knob (Option R&S FSP-B3), if present, by pulling it off.
Pull off the labelling panel (270) towards the front.
Remove three countersunk screws (70) at the frame and 236 countersunk screw (70) at the
connector mounting plate (60).
Unscrew the cable W1 (295) to 7 GHz, (310) to 13.6 GHz, (315) to 30 GHz or (322) to 40 GHz at the
RF attenuator (20), (30) or (35).
Remove the connector mounting plate (60) together with W1 and Probe/Key module (50) to the front.
Note
:
The Probe/Key module (50) is connected via a ribbon cable to the motherboard X80.
Unscrew the four countersunk screws (350) and remove cable W1 together with mounting plate
(330) or (340).
Installing the New Cable and Completing the Instrument
Put the mounting plate (330) or (340) onto the new cable W1 and mount the connector with four
countersunk screws (350), move the mounting plate (60) back to the instrument and connect cable
W1 (295) or (315) to the input of RF attenuator.
Screw three countersunk screws (70) to the instrument frame and two countersunk screws (70) to
the mounting plate (60).
Install the labelling panel (270).
Push the 2 front handles (420) on the instrument and mount them with the 4 screws (430).
Replace the volume control knob (Option R&S FSP-B3), if it was removed.
Push the tube (410) on the instrument and mount the 4 rear-panel feet (450).
Connect the instrument to the mains, switch on the instrument power switch and switch on the
instrument with the ON/STANDBY key
Start selftest and check results:
-
[
SETUP
: SERVICE : SELFTEST ], then [SELFTEST RESULT]
Start a total calibration and check the result:
-
[
CAL
: CAL TOTAL ] , then [ CAL RESULTS ]
Check frequency response with chapter 1 and do a correction if necessary.
Содержание 1164.4391.03
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