User manual DYNACORD PAA 990 SERVICE MANUAL

[. . . ] CAUTION: These servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the Operating Instructions unless you are qualified to do so. Security regulations as stated in the EN 60065 (VDE 0860 / IEC 65) and the CSA E65 - 94 have to be obeyed when servicing the appliance. Use of a mains separator transformer is mandatory during maintenance while the appliance is opened, needs to be operated and is connected to the mains. [. . . ] With a variety of suspension accessories and conservative cosmetics, the D 11A is also ideally suited to be used in demanding fixed installations. The cabinet is manufactured from Polypropylene and therefore is extremely resistant against abuse on the road. The Constant-Directivity HF horn has been integrated into the baffle by CAD methods. nominal coverage angle of the cabinet is 80° * 40° , horizontal * vertical respectively. The built-in digital power amplifiers are working in biamped operation and are controlled by an electronic xover circuit that has been designed to optimally match the transducers' acoustic characteristics. The multitude of connection and setting facilities (MIC, LINE, AUX) allows using the D 11A in many creative ways. The master signal can be daisy-chained to a second D 11A cabinet via a regular XLR microphone cable. The built-in level control VOLUME allows easy adjustment of the required sound pressure level. the D 11A is connected to the mains via a locked IEC inlet that guarantees a hassle-free operation. Extremely durable acoustic foam mounted to a strong powder-coated steel grille protects the loudspeaker components against any mechanical damage. CAUTION: Do not ship the cabinet in any other than its original packaging. It is possible to connect balanced as well as unbalanced gear at the LINE IN input using an monaural or stereo phone plug cable or XLR-type plug cable. Balanced connection is preferable whenever the source unit has a balanced output stage. Following this advice will provide you with the advantage of less interference that is introduced from external hum or HF-induction. CAUTION: Before making any connections or disconnections, make sure to set the level control to the counterclockwise stop. 7 AUX LEVEL CONTROL (AUX LEVEL) This control is used to adjust the input level of the signal source that is connected to AUX IN L / R input. 13 OUTPUT CONNECTOR FOR AUDIO SIGNAL (LINE THRU) This electronically balanced output provides the carried through audio signal from the LINE IN connector. The level of the output signal is independent of the setting of the Master level control ("Pre Fader"). For connecting audio signal sources to the D 11A, we recommend using cable with balanced XLR-type or stereo phone plug connectors. Using balanced cable reduces the risk of sound degradation resulting from interference. Original DYNACORD cable from our accessory program will always comply with this pin-assignment. This is a powered speaker with a very high efficient amplifier module and as a result does not get really hot. [. . . ] When using a DYNACORD CMS mixer, no power-off noise will be output from the `Master Outputs`. The lower edges of the speaker systems should be approximately 1, 8 meters above the audience to provide sufficient coverage and to prevent that listeners nearby are subject to extreme sound levels. Using suitable XLR-type cables connect the Master Outputs of your mixing console, e. CD player, to a line CAUTION: CAUTION: We expressly point out that the relevant safety regulations must be observed for "flying" loudspeaker systems. [. . . ]