ILT.2242
The problem is most likely the low band microcircuit
(A24). A less likely possibility is the microcircuit that
selects the A24 low band output. Depending on the
instrument block diagram, this switching is done in the
following microcircuits:
All models with Option 006:
A42 Pulse Modulation Switched Filter
83620B, 83630B/L, and 83623L:
A29 Amplier Filter
83640B/L and 83650B/L:
A32 Frequency Doubler
83623B:
A33 Amplier Switch
Before continuing, check again for loose or poorly seated
connectors.
Has A24 been previously replaced?
Go To
RF.2490
Go To
ILT.2257
ILT.2245
Does the RF power problem exist
only
at
frequencies
2 GHz?
Go To
ILT.2256 Continue
Agilent 8360 Instrument Level Troubleshooting 1a-37
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