TROUBLESHOOTING

The 215PCM won’t turn on when the Power switch is operated-

•Verify AC power source is providing required voltage.

•Check each end of the power cord. The twist-lock connectors need to be fully inserted and twist-locked into place.

•If using the DataPort inputs and QSC amplifier network control applications, the amplifier could be in STANDBY mode. Check with the system operator to place the amplifiers in POWER ON mode. If required, you can check this by temporarily disconnecting the DataPort cables to each Processor; if the 215PCM powers up, then the amplifier network control was forcing the amps to be in STANDBY mode.

•Inspect the AC power cord for damage. Unplug from the AC power source and then carefully inspect the cord for damage. Replace if any damage is detected.

The 215PCM “cuts-out” when I really crank it up (intermittent operation)-

•Make sure the AC power source is rated for 120V, 30 Amps. Do not use 20 or 15 Amp AC supply circuits for the 215PCM! Use only 12 or 10 gauge heavy-duty extension cords.

•If the AC power source is “sagging” (or drooping) under heavy load, the circuit is overloaded or has other fundamen- tal problems. Use another circuit or have the circuit checked by a licensed, professional electrician.

•Do not use multiple 215PCM’s from the same AC power circuit branch. Momentary, peak current from the AC line can easily exceed 50 Amps per 215PCM. While this is well within the limits of 30 Amp (continuous) circuits, additional 215PCM’s could overload one circuit branch. Always consult a licenced, professional electrician for verification of proper AC power distribution in high-power systems.

Can I use some sort of adapter on the power cord so that I can use “regular” outlets?-

•QSC Audio Products strongly discourages ANY changes in the AC power connections. Use only NEMA L5-30, 120V, 30 Ampere twist-lock connectors. All supply circuits and AC power receptacles should be rated for 120 V., 30 Amp service.

•Unreliable and potentially dangerous conditions could result from using this product with improperly rated AC supply circuits. Always consult a licensed, professional electrician for verification of proper AC power distribution in high-power systems.

•In emergencies, 15A adaptors can be used if full operating levels are avoided.

How can I adjust the gain settings on the amplifiers? Any recommended tool for the job?-

•See page 10 for details.

•Two recommended tools: Excelite #R186 (metal, 6” blade screwdriver) or GC Electronics #8988 (fiberglass, 12” blade adjustment tool).

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QSC Audio ISIS 215PCM user manual Troubleshooting, 215PCM won’t turn on when the Power switch is operated
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ISIS 215PCM specifications

The QSC Audio ISIS 215PCM is a powerful loudspeaker designed to meet the demands of professional audio applications. Known for its exceptional sound quality and robust construction, the ISIS 215PCM is engineered to deliver a superior listening experience in various settings, including live events, concerts, and installations.

One of the main features of the ISIS 215PCM is its dual 15-inch low-frequency drivers, which provide deep, resonant bass and a wide dynamic range. This design allows for high SPL (Sound Pressure Level), making it suitable for large venues. The enclosure is strategically designed to enhance performance by minimizing distortion, thus ensuring clear audio reproduction even at high volumes.

The ISIS 215PCM is equipped with a high-frequency compression driver coupled with a wide dispersion horn. This combination yields excellent high-frequency response and seamless integration with the low-frequency drivers. The dispersion pattern has been meticulously engineered, enabling consistent sound coverage throughout the audience area, which is essential in live sound applications.

In terms of technology, the ISIS 215PCM features advanced acoustic design principles that optimize both performance and durability. The enclosure is constructed from high-grade plywood and reinforced to withstand the rigors of touring and installation, while the dual ports facilitate enhanced airflow and reduced turbulence, resulting in accurate sound reproduction.

Additionally, the loudspeaker employs a sophisticated passive crossover network that effectively separates frequencies, allowing each driver to operate within its optimal range. This technology minimizes phase issues and ensures that the transitions between the low and high frequencies are smooth and natural.

Portability is another significant characteristic of the ISIS 215PCM. It includes robust handles for easy transport and installation, making it a great choice for sound engineers and technicians who need to set up and break down equipment regularly. The professional-grade connections further enhance convenience and reliability in diverse applications.

Ultimately, the QSC Audio ISIS 215PCM is a remarkable loudspeaker that combines innovative technologies, premium materials, and thoughtful design. It is ideal for audio professionals seeking a reliable solution that delivers exceptional sound quality and performance. With its versatility and robust features, the ISIS 215PCM stands out as a formidable choice for both live sound and permanent installations.
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