544 Keysight N9038A MXE Service Guide
Assembly Replacement Procedures
RF Area - Option 503, 508, & 526
YTF Preselector - Option 503, 508, & 526
Removal
1. Refer to Figure 18-12. Remove cable W25. Remove cables W39 and W40
from the YTF Preselector (1).
2. Remove W43 from the RF Switch/High Band Preamp assembly.
3. Remove the wire harness W12.
4. Refer to Figure 18-13. From the bottom of the instrument, remove the four
screws (1) (0515-0372). The YTF Preselector can now be removed from
the chassis (may require lifting up slightly on the RF Switch/High Band
Preamp assembly).
Figure 18-12 YTF Preselector Removal - Option 503, 508, & 526
Item Keysight Part Number
W25
N9038-21302
W39
N9020-20123
W40
N9020-20124
W43
N9038-21304
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