Micro-Tech Series Power Amplifiers

4 Operation

4.2Controls, Indicators and Connectors

4.2.1 Front Panel Facilities

A. Filter Grille

Supports and protects the dust filter (B). To clean the dust filter, detach the grille by remov- ing the three screws that hold it in place.

B. Dust Filter

Removes large particles from the air drawn by the cooling fan. Check the filter regularly to prevent clogging. The filter can be cleaned by soaking in a mild detergent (e.g. dishwashing liquid).

C.ODEP Indicators (Output Device Emulation Protection)

During normal operation, these amber indica- tors glow brightly to show that reserve thermo- dynamic energy is present. They dim proportionally as energy reserves decrease. In the rare event that energy reserves are depleted, the ODEP indicators turn off and the protection circuitry proportionally limits output drive so the amplifier can safely continue operating even under extreme conditions. These indicators also help identify more unusual operating conditions (see Section 5.1.1 on ODEP and Section 7 on Troubleshooting).

D. Enable Indicator

Lights when the amplifier is on. AC power is available and the low-voltage power supply and fan are operational. Does not indicate the status of the high-voltage power supply (see Section 6 on Troubleshooting).

E. Power Switch

Amplifier is on when the switch is in the "on" position. When turned on, the output is muted for approximately four seconds to protect your system from start-up transients.

POWER

ODEP

CH1

CH2

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A BC CDE

Figure 4.1 Front Panel Indicators and Grille

Operation Manual

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Crown 1201, 1200, 2401, 2400 Dust Filter, Odep Indicators Output Device Emulation Protection, Enable Indicator, Power Switch

600, 2400, 1201, 1200, 2401 specifications

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