Jim, the bias 'smps' is the isolated circuitry at the upper left of page 5 of the schematics.? It feeds the TX_BIAS to the input and output sides of the LPFs at the top right of page 5.
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From an assembly point of view, I would look carefully at L501 (the surface-mount 330uH choke) and make sure it didn't get damaged.
Then I would also look at two of the leaded 47uH inductors you soldered in, L504 and L514, which carry the bias current to the LPFs.? Make sure they are soldered correctly, and since they are somewhat fragile, make sure neither of them is cracked.? These are the primary assembly-related components on the bias current.
Stan KC7XE
