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Resumen del manual
INTRODUCTION First of all we should like to thank and congratulate you for choosing the Professional Signal Delay Line DDL 204 from DYNACORD. The DDL 204 is a delay unit which can be configured as stereo unit with 2 x IN and 2+2 x OUT or as mono unit with 1 x IN and 4 x OUT at will, enabling you an easy set-up of "distributed systems" of different loudspeaker groups, distributed over the room. The different delay times of sound from the loudspeaker groups to the audience can be compensated with the DDL 204, in order to avoid echo effects and increase speech intelligibility. The 4 outputs of the DDL 204 allow different delays for 4 loudspeaker groups. The maximum delay time of more than 2750 msec, allows a delay compensation of distances up to 950 m. Optionally the delay can be set as distance im m, cm, inch, feet or as time in msec. According to requirements in the "normal" operating modes the phase can be inverted for each output and additionally a High Shelving Filter can be used to reduce the trebles by 15 dB. The various delays can either be edited relatively to one another or separately. 30 different configurations can be stored in 30 user memory places. All the DDL 204‘s inputs and outputs are electronically balanced XLR sockets. It is perfectly straightforward to retrofit transformers as an optional feature. In this Owner’s Manual you will find a lot more features of the DDL 204. Please read it through carefully and we guarantee that your new Professional Signal Delay Line DDL 204 from DYNACORD will give you great pleasure. IMPORTANT NOTES ATTENTION: This unit must be protected from damp because of fire risk and the possibility of electric shocks. 1. Make sure that nothing, especially no metal objects, are inserted into the device. This could result in a severe electric shock or malfunction. 2. If the unit is subjected to extreme fluctuations of temperature, e.g. on being transported from outside to a heated room, condensation can form. The unit should not be used until it has reached room temperature. 3. If water or any other liquid is spilt on to the unit accidentally, the unit should be switched off immediately and taken to a sen/icing facility to be checked. 4. Make sure that the unit is always well ventilated and never exposed to direct sunlight. 5. Do not use sprays to clean the unit as they have a detrimental effect on the unit and could ignite suddenly. 6. Inside the unit there is a battery to supply the RAM when the unit is switched off. This will ensure that your stored USER programs do not get lost. The sen/ice life of the battery is approx. 5 years. If the voltage drops below a minimum value, the following display appears after switching the unit on: "Service Required, Change Internal Battery". In this case contact the DYNACORD sen/ice center for changing the battery. ON NO ACCOUNT SHOULD THE USER ATTEMPT TO DO THIS HIMSELF! v___) 1-2 2. PANEL DESCRIPTION AND CONNECTIONS U 5 6 7 2.1 FRONT PANEL 1, Controls INPUT 1 / INPUT 2 These adjust the input level of the DDL 204 to adapt the unit to different sound source output voltages. The input signal can be raised by 6 dB (control fully right) or attenuated infinetely. 2, Level Indicators INPUT 1 / INPUT 2 These are for modulation monitoring, as the peak value of the input level is indicated. Another feature is the peak hold function which facilitates easy level matching. Adjust the input controls so, that the level indicators remain at 0 dB. The CLIP LED’s should never light up, because otherwise the unit is overdriven internally. 3, Multi-functional display This is a LC display involving 2 lines with 16 characters each. In PLAY mode the program number and delay configurations for the outputs 1 - 4 are indicated. In EDIT mode the parameter name and a graphic and numeric para meter value are indicated. Depending on the current status OPTION menus, status messages, user guide messages etc. appear. 4, Status/Mode LED’s These LED’s indicate the DDL 204‘s current status. If the LED EDIT lights up, the EDIT mode is indicated. The LOCK LED indicates, that the DDL 204 is in the write protected mode and that no key inputs are possible. The BYPASS LED indicates the BYPASS mode of the unit. The LED’s MONO 1-IN-4 or STERO 1-IN-2 light up depending on the actual configuration (see chapter 6 "DELAY CONFIGURATIONS AND PARAMETERS"). 5, EDIT Key This key changes the operation to EDIT mode. After pressing this key, the first parameter of the active program is shown. Further parameters are accessible via the SELECT keys. The value of the parameter shown can be changed via the rotary encoder. For further information please see "EDITING”, chapter 5.2. 6, SELECT Key < In play mode this key selects the previous memory place (activation via ENTER). In edit mode it is used for selecting parameters (always the previous parameter). 7, SELECT Key > In play mode this key selects the next memory place (activation via ENTER). In edit mode i...