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 AT2000/AT3000 series do 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 | |
|
| |
Amplifier will not turn on. | Master Power Switch turned off. | |
| Turn on Master Power Switch. | |
|
| |
Amplifier will not turn off. | Remote trigger cable not properly connected. | |
| Verify connection of trigger cable at both ends. | |
|
| |
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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