He had it [checked by the manager]. [passive]
In the Cambridge Grammar of the English Language is on page 1174 written in connection with this sentence this: "The past participle form of the verb has two uses, perfect and passive. Clauses with a perfect past participle as head occur as complement to auxiliary have, and accept progressive and passive be, while those with a passive past as head accept no auxiliaries".
Is the above sentence really example of a passive past perfect? I consider it more likely as the causative, i.e. the structure "have sth done".