User manual DYNACORD PM2600

[. . . ] The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated , , dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. Do not expose this apparatus to dripping or splahing and ensure that no objects filled with liquids, such as vases, are placed on this apparatus. Do not block any of the ventilation openings. install in accordance with the anufactures instructions. [. . . ] output Signal Indicators For The LO/HI Channels A , B These LEDs indicate the output voltage of the power amplifiers. The LO-indicators represent the output voltage of the bass power amplifiers while the HI-indicators represent the output voltage of the MID-HI power amplifiers. The LEDs are directly fed from the output connectors which additionally provides optical information of short-circuits in loudspeaker lines. Whenever a faulty condition like a short-circuit occurs and even though the audio signal is reproduced, the corresponding indicator does not light at all or is dimmed. LIMIT The limit indicators light whenever the internal limiter is activated and the power amplifier is operated at its limits. Short-term or frequent blinking does not represent any problem. If the LEDs are continuously lit, reducing the output level is recommended to prevent the connected loudspeaker systems from being damaged by overload or clipping. Thermal Brain Circuit (TBC) The internal power amplifiers are capable of producing output peaks that by far exceed the nominal output power capacity as stated in the specifications. To protect the connected loudspeaker systems from being damaged, the TBC reduces the output power: either after a short period of time when the regular output level is continuously exceeded, it is reduced to its nominal value or, depending on the overdrive condition, even a bit lower. A lit LED indicates that the sound system is operated exceeding its output capacity which means, that the connected loudspeaker systems operate in a thermally critical range. In this case reducing the output level of the mixing console is strongly recommended. PROTECT This indicator lights during operation when one of the protection circuits - thermal overload, short-circuit or HF at the outputs - has been activated. Whatever caused the defect - for instance a short-circuit in one of the loudspeaker lines - has to be eliminated. In case of thermal overload, you have to wait some time until the power amplifier automatically re-enters operation mode. pOWER CN IndicatorWhen the power amplifier is in operation mode the LED lights. If the LED does not light after switching the power on, presumably the mains cord is not correctly plugged in or one of the mains fuses is blown. POWER Switch This push-button switch turns the power on. the loudspeaker outputs are switched delayed via relay. This prevents any power-on noise from being heard. An initial inrush current limiter circuit protects the entire system from being damaged during the power-on operation. The controls and rotary selector switches of the equalizer section marked "LO" and "HI" are used to match the system to different loudspeaker system configurations as well as for the compensation for acoustic problems of the location. A) HI Rotary Selector Switch This rotary selector switch can be set to three different positions. [. . . ] in the "- 2dB" position , the upper mid frequency range is attenuated by 2dB at 4kHz. This setting is most suitable when the system is frequently used in different locations and at high SPL. this completes the system's basic settings. Using the tone controls in the microphone and musical instrument channels of the connected mixing console, you can adjust and balance the overall sound according to your personal preferences. [. . . ]