A13 Front End Assembly - Keysight PXA N9030A Installation Note

Frequency Range Upgrade from RF or Microwave to Millimeter Wave Frequency
Hardware Removal and Installation
You will be removing almost all front end assemblies, including the option MPB/LNP switches if
present; from the input connector to the A15 Front End Control assembly. The only assembly that
will remain is the A20 YTO.
1. Power down the instrument, wait till the standby light comes on, and remove the power cord.
2. Remove the instrument outer case, top brace, front frame assembly and right side chassis (RF
side bracket). Save all screws for reuse. If the instrument contains option EXM, External
Mixing, be careful and disconnect the semi rigid cable behind the front panel EXT MIXER
connector.
Remove both input attenuators and attenuator brackets
3. Disconnect all semi rigid cables from both input attenuators.
4. Remove the W3, semi rigid calibrator cable from A16 Reference board J701.Discard this cable.
5. Remove both attenuators by removing the attenuator brackets with the attenuator still
attached. Unplug the ribbon cable from both attenuators. The ribbon cable will be used for the
new attenuators. Discard the attenuator/bracket.
6. Remove the input connector assembly with the W2 cable still attached, by removing the two
screws that attach the connector bracket to the instrument frame. Discard.
7. Locate the 2.4 mm input connector in the kit and install it on the instrument frame using the
screws just removed.
Remove the A13 Front End assembly (as if you were replacing the A13 assembly)
8. Disconnect all semi rigid and flex coax cables from the top of the assembly. Also disconnect all
cables (except the bottom cable) on the right side of the Front End assembly.
9. Remove the 50 ohm load from A13A1J8 if present. Only instruments WITHOUT Option EXM,
external mixing have this load attached. This load will be used on the replacement mm-wave
front end assembly.
10.Disconnect the ribbon cable that attaches to the A15 Front End Control assembly. Only
disconnect the end from the A13 Front End assembly. This cable will be re connected to the
new Front End.
11.Remove the A13 Front End assembly from the instrument by removing the mounting screws.
Save the screws for reuse.
Installation Note N9030-90066 11