UNDERSTANDING THE INDICATORS ON THE A 23 | 10 |
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AAC Present Indication
When the A 23 is plugged into a live AC outlet, a soft blue halo glows behind its
BOn and Off Indications for Both Manual and Automatic Modes
When the A 23 is first turned on, the soft blue glow behind the
CChannel Status Indicators
These are two small round indicators in the center of the recess in the front panel. The indicator on the left displays the status of the left channel and the indicator on the right displays the status of the right channel.
DNo Illumination:
When the A 23 is turned off, these indicators are off.
EBlue Illumination of Channel Status Indicator:
When both channels are operating normally, these both glow blue.
FNo Illumination of Channel Status Indicators:
A blue channel indicator will stop glowing if there is a fault in its corresponding amplifier channel. If this occurs for either channel, the halo glow behind the
GHigh-Temp Indicator
This indicator is near the right side of the panel recess. It will glow red if either channel overheats.
HLevel Controls
We recommend that you rotate the Left and Right Level controls to their maximum clockwise positions, marked THX Reference. Refer to Level Controls in Technically Speaking for more information about setting level controls.
IGround Switch
The Ground switch can assist in reducing audible hum caused by ground loops in your system. Leave this switch in its Normal (down) position unless you hear hum through your speakers (you’ll only be able to hear this hum after your entire system is installed and operating). You can try the Lift (up) position to eliminate it. Please refer to the Technically Speaking section for detailed technical information about the causes of ground loops and what you can do about them.
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