AVIXA Communications Certifications CTS Book

The first stage in troubleshooting an AV system is identifying the symptoms of the error. This step involves observing and documenting the specific issues or malfunctions that are occurring. By clearly understanding and articulating the symptoms, a technician can more effectively diagnose the problem and narrow down potential causes. Once the symptoms are identified, the technician can proceed to evaluate possible sources of error, check device functionality, and review system diagrams as needed.

"Just in time" delivery is the most cost-effective approach as it reduces storage costs, minimizes the risk of damage or obsolescence, and aligns closely with the project's timeline. Ordering too early (Options A and C) can lead to unnecessary storage costs and risks. Ordering only 5 days before (Option B) might lead to delays due to procurement or shipping issues.

CTS References: AVIXA CTS Exam Guide, Chapter on Project Management and Logistics; CTS Handbook, Section on Equipment Scheduling and Procurement Strategies.

Mic-level, line-level audio, and relay control are all low-voltage, low-noise sensitive signal types. They can typically share a common cable pathway with proper shielding. RF and loudspeaker cables, on the other hand, can cause interference and should be routed separately.

“Group cables by signal type to reduce interference: low-voltage control and audio together; high-power (loudspeaker or AC) separately.”

— CTS Exam Guide, Cabling and Signal Management Chapter

A return-to-base (or back-to-bench) warranty requires the customer to send the device to the manufacturer or service center. Unlike advanced replacement or on-site service warranties, the burden is on the client to remove and ship the equipment.

“Return-to-base warranties require the customer to ship the device to the service location, often at their own cost.”

— CTS Exam Guide, Warranty Types and Service Agreements