PSA GCC-500, GCC-250, GCC-100 manual Troubleshooting

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Troubleshooting

Owner’s Reference GCP Stereo Preamplifier

If you have hum or buzz

Finding a ground loop

Process of elimination

Try a cheater plug

It could be the cable TV

Blue light is too bright

If you experience a hum through the speakers this can be caused by several things. The fi rst is the source. If there is an excessive amount of buzz or noise from the loudspeaker, it may be caused by a ground loop, a light dimmer in the home, poor AC power, or any number of causes. The quickest way to determine where to start your search is to simply turn the amp off, disconnect the cables feeding its input, and see if the hum goes away when you turn it back on. If it does, it’s most likely a ground loop or buzz from a dimmer.

The easiest way to fi gure out where ground loop problems lie is by the process of elimination. You need to determine where the hum or buzz is coming from within your system.

If the hum/buzz goes away when you remove the inputs to the GCC Control Amp, your next step will be to reconnect the sources, one at a time, listening for the return of the hum. After each connection, check for hum until you discover

the humming culprit.

VCR’s, surround processors, and any device that is connected to a television cable or satellite dish can cause a loud buzz and should always be suspect. If, by the process of elimination described above, you determine it is a component like a VCR that is causing the hum/buzz to occur, and using a cheater plug or removing the ground pin on a PS xStream Power Cable doesn’t help matters, it may be necessary to isolate the cable connection (CATV) with an isolation transformer. This inexpensive device is available at most Wal Mart, Radio Shack or

department store type outlets and is sometimes called a ‘matching transformer’. If you have problems

finding one, call your local cable TV company for advice. The matching transformer will be placed between the cable TV cord and the VCR, TV or processor.

Just remember, take the system down to its simplest level of connection. Find a way to hook the system up with as many pieces of the system missing or not connected. Keep it simple and get it to the point where the hum’s gone. Then start adding back components one at a time until the hum returns.

Finding the problem is 9/10th of the work of fi nding a solution.

If the blue light is too bright, or if it is not lit but the amplifi er plays, check the rear panel of the GCC Series Power Amplifi er for the three position dimmer switch. The switch is located on the rear panel, upper left hand side as you face the rear of the unit.

4826 Sterling Drive, Boulder, CO 80301

Troubleshooting 12

PH: 720.406.8946 service@psaudio.com www.psaudio.com

 

©2004 PS Audio International Inc. All rights reserved.

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Contents Document Owner’s ReferenceIntroduction Important Safety Instructions IntroductionTable Of Contents What you can expect Isolation Power Cables Conditioners Getting StartedLocation Getting StartedQuick Start Guide Quick Start GuidePush the front panel logo to turn it on Setup instructions Setup InstructionsInput Name Editing Setup instructions Software versionVolume control Mute control Up/Down selector Power ButtonOperating Guide Balance controlHT Bypass Phase Control Dim Control Placement? Front panel power buttonQuestions and Answers Isolation?What voltages can the amp run on? Troubleshooting TroubleshootingTroubleshooting Problems with subwoofers Specifi cations SpecificationsWarranty WarrantyConditions Remedy Miscellaneous Outside the US Service ServiceIf you have problems Voltage changes Sterling Drive, Boulder, CO Your purchase information Your serial numberYour dealer or distributor’s information Date of purchase

GCC-100, GCC-500, GCC-250 specifications

The PSA GCC series, which includes the GCC-250, GCC-500, and GCC-100 models, represents a pioneering line of gas cold cryogenic systems developed by the renowned manufacturer, PSA. These systems are distinguished by their advanced features, cutting-edge technologies, and unique characteristics that cater to various industrial applications.

The GCC-250 is designed for high efficiency and reliability in producing nitrogen, oxygen, and argon from air. It boasts a compact design, making it suitable for installations where space is at a premium. Its energy-efficient operation is facilitated by the latest in cryogenic technology, allowing for low power consumption while maintaining maximum output. Key features of the GCC-250 include a modular design for easy maintenance, integrated control systems for remote monitoring, and a user-friendly interface that simplifies operation. Additionally, it incorporates safety mechanisms to ensure optimal performance even under varying environmental conditions.

Next in the line is the GCC-500, which offers increased capacity and advanced efficiency compared to its smaller counterpart. With a production capability of up to 500 liters per hour, the GCC-500 is ideal for medium to large-scale industrial applications. This model employs a state-of-the-art dual-column adsorption technology, which enhances the purity of gases produced while minimizing waste. The GCC-500 also incorporates advanced thermal insulation and heat exchange technologies, which further optimize the energy use and operational cost. It features an intuitive control system with predictive maintenance capabilities, allowing for real-time diagnostics and reduced downtime.

At the top end of the series, the GCC-100 is engineered for high-demand applications that require large volumes of gas. With its robust construction and innovative design, this model can produce an impressive output, catering to industries such as aerospace, pharmaceuticals, and food processing. The GCC-100 utilizes a proprietary liquefaction cycle that ensures exceptional gas purity and can handle variations in feed conditions without compromising performance. Like the GCC-500, it is equipped with advanced automation and control systems for seamless operation. Additional features include enhanced safety protocols, comprehensive data logging, and customizable configurations to meet specific client requirements.

Overall, the PSA GCC series embodies the latest advancements in cryogenic gas production technology, offering efficient, reliable, and safe solutions for diverse industrial needs. With their unique features and robust performance, these units are well-suited for businesses aiming to enhance productivity while minimizing operational costs.
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