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Knoll Systems service information
The GSZ67 amplifier does not contain any user serviceable parts inside. If you suspect a problem that may require servicing, contact us at www.knollsystems.com/contact.html, or by phone at 800
Troubleshooting
Your Knoll amplifier is designed from
Problem | Solutions | |
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Amplifier won’t turn on | Master power switch turned off (No power light LED). | |
| Turn on Master Power Switch. | |
Amplifier turns on, but no audio | Input plugs not connected to proper jack or are loose. | |
from one or more channels | Check input connections. | |
No audio from one or more | Speakers are not connected properly. Check speaker | |
Channels | connections at amp and speaker. | |
Audio levels differ from sources | Improper settings or output levels from source device. | |
| Check the settings on your preamp, processor or | |
| controller. Also verify gain settings on the source | |
| inputs on the GSZ67 rear panel. | |
Audio plays and then cuts off | Amplifier may be shorted. Check speaker connections | |
| for |
Care, maintenance, and cleaning
When the GSZ67 amp becomes dirty, wipe it with a clean, dry, soft cloth. If necessary, first wipe the surface with a slightly dampened soft cloth with mild soapy water, then with a fresh cloth dampened with clean water. Wipe dry immediately with a dry cloth. NEVER use benzene, thinner, alcohol, or any other volatile cleaning agent. Do not use abrasive cleaners, as they will damage the finish of the metal parts. Avoid spraying insecticide, waxes, polishing agents, or any aerosol product near the GSZ67.