Main Circuit Breaker
Your amplifier is supplied with a
WARNING: Always turn off the amplifier and unplug the power cord before making any electrical connections.
ATI Service Information
The AT1800 series does not contain any user serviceable parts inside. If you suspect a problem that may require service assistance, contact us at amptech@ix.netcom.com, or by phone at
Protection Circuitry | Care and Maintenance | |
Your ATI amplifier uses an advanced optically coupled | Cleaning | |
protection circuit that does not require fuses and is completely | When the unit becomes dirty, wipe it with a clean, soft, dry | |
isolated from the audio path. In the event that the amplifier | cloth. If necessary, first wipe the surface with a soft cloth | |
senses a shorted speaker wire the protection circuit will | slightly dampened with mild soapy water, then with a fresh | |
engage shutting down the output and will sample the state of | cloth dampened with clean water. Wipe dry immediately with | |
the amplifier every 7 seconds (nominal). The output will be | a dry cloth. NEVER use benzene, thinner, alcohol or any other | |
cut off as long as the short exists. The amplifier will begin to | volatile cleaning agent. Do not use abrasive cleaners, as they | |
operate normally after the shorted situation is repaired. | will damage the finish of the metal parts. Avoid spraying | |
| insecticide, waxes, polishing agents, or any aerosol product | |
If this should happen, first check all speaker wire connections, | near the unit. | |
both at the speakers themselves and at the speaker terminals | Troubleshooting | |
on the back of the amplifier to make certain that none of the | ||
strands from any channel touch another channel, and that | ||
| ||
none of the strands from a "positive" terminal touch those | Your ATI amplifier is designed for trouble free operation. | |
from a "negative" terminal. Even a few stray wire strands can | If you follow the instructions in this manual you should enjoy | |
cause the unit to go into the protection mode. | many years of high quality listening enjoyment. However, as | |
| with any sophisticated electronic device, there may be | |
After checking all speaker connections, turn the unit back on. | occasional problems upon initial installation, or during the | |
If it continues to turn off, check your speakers to verify that | life of the unit. The items on the list below are a brief guide to | |
they are operating properly. If all other potential sources of | the minor problems that you may be able to correct yourself. | |
trouble check out properly, contact ATI for further assistance | If these solutions do not rectify a problem, or if the problem | |
and information. | persists, contact us for assistance. | |
Problem | Solutions | |
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| |
Amplifier will not turn on. | Master Power Switch turned off. | |
| Turn on Master Power Switch. | |
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Amplifier will not turn off. | Remote trigger cable not properly connected. | |
| Verify connection of trigger cable at both ends. | |
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| |
Amplifier turns on, but no audio from one or more channels. | Input plugs not connected to proper jack or are loose. | |
| Check input connections. |
No audio from one or more channels.
Speakers not connected properly.
Check speaker connections at amp and speaker.
Audio levels differ. | Improper settings or output levels from processor or controller. | |
| Check the settings on your preamp, processor or controller. | |
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Audio plays, then cuts off. | Amplifier shorted. | |
| Check speaker connections for short circuit at amp and speaker. | |
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