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Description of this Upgrade
Step 4. Remove Some Top Cables
Step 4. Remove Some Top Cables
Carefully turn the PNA so it is top-side up for this step.
Refer to your Service Guide's "Removing and Replacing the A4–17 Boards"
section. Set aside all hardware for reuse.
Exceptions (See also, note below):
IMPORTANT! A4 13.5 GHz source 1 synthesizer, A14 frequency reference,
A15 13.5 GHz (LO) synthesizer, and A17 13.5 GHz source 2 synthesizer
boards will not be reused. Set these aside as spares for your other PNAs or
recycle.
The following cables are not reused:
— W1 (N5222-20066) A4 13.5 GHz synthesizer board (source) (1) J1207 to A5
— W2 (N5222-20090) A17 13.5 GHz source (2) synthesizer J1207 to A10
— W74 (N5242-60027) (N5224/5B and N5244/5B Only) A14 frequency
— W84 (N5242-60027) (N5227B and N5247B Only) A14 frequency reference
— W75 (N5242-60028) (N5224/5B and N5244/5B Only) A14 frequency
— W85 (N5242-60028) (N5227B and N5247B Only) A14 frequency reference
— W76 (N5242-60029) (N5224/5B and N5244/5B only) A14 frequency
— W86 (N5242-60029) (N5227B and N5247B only) A14 frequency reference
— W77 (N5242-60030) (N5224/5B and N5244/5B only) A14 frequency
— W87 (N5242-60030) (N5227B and N5247B only) A14 frequency reference
Installation Note N5225-90142
26.5 GHz source (1) board P1
source (2) P1. (On 2-port models, W2 is included only with Opt. 224.)
reference board J4 to A16 SPAM board J3
board J4 to A16 SPAM board J3
reference board J5 to bottom of A15 13.5 GHz (LO) synthesizer board J5
board J5 to bottom of A15 13.5 GHz (LO) synthesizer board J5
reference board J6 to bottom of A5 13.5 GHz (source 1) synthesizer board
J5
board J6 to bottom of A5 13.5 GHz (source 1) synthesizer board J5
reference board J7 to A13 13.5 GHz (source 2) synthesizer board J5. (On
2-port models, W77 is included only with Option 224.)
board J7 to A13 13.5 GHz (source 2) synthesizer board J5. (On 2-port
models, W87 is included only with Option 224.)
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