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MAINTENANCE OF SOUND EQUIPMENT 651
steps may safely be taken in case of this, that or the other trouble.
Permanent Repairs
(9) A permanent repair involves not only restoration of the equipment to proper and permanent operating condition, but in addition every step of precaution that can reasonably be taken to avoid recurrence of the same trouble, or to avoid delay in the show if it does recur. This may quite possibly involve changing some portion of the equipment. In unusual and extreme cases it may mean buying a new sound system. Permanent repair may also involve taking advantage of the occasion to add some intended and valuable improvement, the installation of which has been delayed because of the cost of tearing the old system apart.
(10) In any case, a permanent repair is never completed until, first, the system is giving the best results possible to its design, and, second, until every reasonable precaution has been taken against further interference with the show.
Let us review the foregoing briefly :
The first step in finding trouble is to determine which portion of the system is responsible.
The second is trace down the faulty part or wire or contact within that apparatus or circuit.
Speed in finding trouble is of vital importance because interruptions to the show are very expensive, both directly in box office refunds and indirectly in loss of patron confidence.
The trouble-shooter must keep his head, and therefore he must possess all the knowledge, general and detailed, that is necessary for self-confidence.
He requires proper tools and instruments to do his work.
Temporary repairs are very helpful in restoring the show quickly, but likely to endanger other apparatus unless they have been carefully planned in advance.
Permanent repairs are not complete until everything