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R&S FSP
Module Replacement
1164.4556.82 3.59
E-1
Replacing Wideband Calibrator A190 (Option R&S FSP-B15)
(See chapter 5, spare parts list, item 1160, and drawing 1155.1012.)
The board is installed in the front part of the instrument.
Opening the Instrument and Removing the Board
Switch off unit, disconnect it from power supply, unscrew 4 rear-panel feet (450) and pull off
enclosure (410) towards rear.
Undo the two countersunk screws (260) at the top of the instrument and the three countersunk
screws (250) at the fan side, lift the cover at the top (240) of the instrument to the left side and take
off.
Place the instrument onto its side and remove all connecting cables to board at the rear of the
instrument.
Pull out the board towards the top of the instrument.
Note:
The board can be disconnected from the motherboard connector by carefully pressing from
the bottom through the motherboard slots.
Installing the New Module and Completing the Instrument
Plug the new board into the instrument and reconnect all RF cables.
Note:
Please observe the labelling on the motherboard.
Mount top cover (240) and fix it by 2 countersunk screws (260) and three countersunk screws (250).
Slide on enclosure (410) and screw on 4 rear-panel feet (450).
A cold boot is necessary after replacing the attenuator.
See section "Performing a Cold Boot" in this chapter. Connect power cable, switch on power switch and
press ON key.
After starting the instrument, check for system messages:
-
[
SETUP
: SYSTEM INFO : SYSTEM MESSAGES
]
Create a backup of the EEPROM data (see chapter 2, section "Adjustment of Module Data").
Check the function according to chapter 1.
Summary of Contents for 1164.4391.03
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Page 92: ...Contents Adjustment R S FSP 1164 4556 82 I 2 2 E 1 This page is left blank intentionally...
Page 103: ...R S FSP Contents Repair 1164 4556 82 I 3 3 E 1 This page is left blank intentionally...
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Page 204: ...Contents Documents R S FSP 1164 4556 82 I 5 2 E 1 This page is left blank intentionally...
Page 208: ...Spare Parts R S FSP 1164 4556 82 5 4 E 2 This page is left blank intentionally...
Page 209: ...1164 4556 82 5 5 E 2 Spare Parts List Mechanical Drawings...
Page 222: ...List of R S FSP parts including spare parts R S FSP 1164 4556 82 5 18 E 2...
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Page 247: ...11164 4556 82 5 19 E 2 Block Circuit Diagram...
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