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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.

The exclamation point within an equilateral triangle is

intended to alert the user to the presence of important

operating and maintance (servicing) instructions in the

literature accompanying the appliance.

IMPORTANT SAFETY INSTRUCTIONS

1. 

Read these instructions.

2. 

Keep these instructions. 

3. 

Heed all warnings.

4.

Follow all instructions.

5. 

Do not use this apparatus near water.

6.

Clean only with a damp cloth.

7. 

Do not block any of the ventilation openings. 
Install in accordance with the manufactures instructions.

8.

Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus 
that produce heat.

9.

Only use attachments/accessoris specified by the manufacturer.

10.   Refer all servicing to qualified service personnel. Servicing is required when the apparatus has

been damaged  in any way, such as power-supply cord or plug is damaged, liquid has been 
spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or 
moisture, does not operate normally, or has been dropped.

For US and CANADA only:

Do not defeat the safety purpose of the grounding-type plug. A grounding type plug has two blades and
a third grounding prong. The wide blade or the third prong are provided for your safety. When the provided
plug does not fit into your outlet, consult an electrican for replacement of the absolete outlet.

1. 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.

2. 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

3. Switch off the power before retrofitting any extensions, changing the mains voltage or the output 

voltage.

4. The  minimum distance between parts carrying mains voltage and any accessible metal piece 

(metal enclosure), respectively between the mains poles has to be 

3 mm

 and needs to be minded 

at all times.
The  minimum distance between parts carrying mains voltage and any switches or breakers that are
not connected to the mains (secondary parts) has to be 

6 mm

 and needs to be minded at all times.

5. Replacing special components that are marked in the circuit diagram using the security symbol

(Note) is only permissible when using original parts.

6. Altering the circuitry without prior consent or advice is not legitimate.
7. Any work security regulations that are applicable at the location where the appliance is being 

serviced have to be strictly obeyed. This applies also to any regulations about the work place itself.

8. All instructions concerning the handling of 

MOS

 - circuits have to be observed.

Note:

 

SAFETY COMPONENT  (HAS TO BE REPLACED WITH ORIGINAL PART ONLY)

IMPORTANT SERVICE INSTRUCTIONS

18

Summary of Contents for DPA 4410

Page 1: ...trolled DC ventilator electronically balanced inputs routing switch for parallel operation of the amplifier inputs input level control power on noise suppression 3 LED indicators with CLIPPING indicator for metering purposes MONITOR outputs temperature control with PROTECT indicator fault indicators READY and GROUND FAULT fault message via off potential READY contact TEST switch for pilot tone sur...

Page 2: ...has two blades and a third grounding prong The wide blade or the third prong are provided for your safety When the provided plug does not fit into your outlet consult an electrican for replacement of the absolete outlet 1 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 2 Use of a mains separator transformer is mandato...

Page 3: ... READY indicator 8 air inlets 9 POWER on switch 10 AC MAINS INPUT connector 11 mains fuse 12 VOLTAGE SELECTOR switch 13 LEVEL 1 4 input level controls 14 INPUT 1 4 XLR type connectors 15 INPUT 1 4 routing switch 16 REMOTE CONTROL connector 17 POWER OUTPUT connector 18 air outlets 19 CIRCUIT TO CHASSIS switch 20 DC INPUT 24 V A rear plate screws see also paragraph 11 19 ...

Page 4: ... REMOTE CONTROL connection 24 6 METERING 25 7 24 V DC OPERATION 25 8 SETTING THE OUTPUT VOLTAGE only by qualified service personal 25 9 ADDITIONAL FUNCTIONS AND FEATURES 26 9 1 NRS 90206 pilot tone surveillance 26 9 2 NRS 90207 ground fault surveillance 27 9 3 NRS 90208 input transformer 27 10 INCORPORATION INTO 19 FLIGHTCASES OR 19 RACK SYSTEMS 28 11 FUSES 28 12 SPECIFICATIONS OF THE DPA 4410 30 ...

Page 5: ...lifier after such accidents When cleaning the amplifier s outside enclosure never use any cleaning sprays or detergents because of inflamability The use of those liquids will damage the appliance 3 PRECAUTIONS AND RECOMMENDATIONS When the appliance is operated with the mains supply use the included mains cable to connect the amplifier to a 230 V or 115 V 50 60 Hz wall outlet Connect the cable s ot...

Page 6: ...trols 13 Hinweis Visual determination of the ROUTING switches ROUTING Switch required settings can be established by marking the corresponding symbols located next to the switches using a permanent maker ON OFF Diagram 1 Input connections Diagram 2 NF cable for coupled operation of two DPA 4410 5 OUTPUTS 5 1 POWER OUTPUT All power outputs are balanced and off ground potential The outputs are prese...

Page 7: ...iagram 3 Diagram 3 Connecting 100 V 70 V or 50 V speakers 5 3 POWER OUTPUT with low impedance speaker systems After switching the output to 20 V low impedance speaker systems 4 16 ohms can be connected to the corresponding output see also diagram 4 Because of an occurring drop in the overall performance the distance between amplifier and speaker systems should not exceed 50 m It is of further impo...

Page 8: ... x 200 W For information about the input connection please refer to paragraph 4 of this manual For the connection of the speaker network please refer to the diagram below Attention During the operation the pins of the POWER OUTPUT strip may conduct dangerous voltage 34 V in peaks Therefore the connected speaker networks have to be installed in accordance to applicable security regulations see also...

Page 9: ...is not possible 8 SETTING THE OUTPUT VOLTAGE only by qualified service personal The DPA 4410 provides output voltages of either 20 V 50 V 70 V or 100 V The output voltage is preset to 100 V Changing the output voltage to a value of 20 V 50 V or 70 V should only be carried out by authorized DYNACORD service personal Attention During the operation the pins of the POWER OUTPUT strip may conduct dange...

Page 10: ...n the REMOTE CONTROL D Sub connector 16 The extension kit NRS 90206 comes as a plug in board assembly It is equipped with a 19 kHz oscillator and four selective 19 kHz receivers with evaluation stages Installation of the NRS 90206 see also diagram 8 Follow the descriptions given in paragraph 8 to open the appliance Be sure to first insert the included board guides before installing the printed cir...

Page 11: ...cuit board assuring the correct position of their guide grooves The release lever of the guides marked as C points to the top while the one of the guides marked as D points down The printed circuit board has to be inserted into the guides with its printed side pointing to the top until it firmly locks in place Reassemble the appliance following the descriptions under paragraph 8 Checking the funct...

Page 12: ...ut 10 C This has to be taken into consideration when installing other equipment into the same rack system or other enclosures Note For trouble free operation of the appliance the maximum environmental temperature should not exceed 40 C 11 FUSES location pos used for value dimensions standard fuse switch 11 fuse switch 11 PCB 85264 2 PCB 85264 2 PCB 85264 2 PCB 85264 2 PCB 85264 2 PCB 85264 2 F501 ...

Page 13: ...4 pole flat cable between the two relays that is connected to the male multi point connector B502 on the printed circuit board has to be disconnected Now the hinged rear plate can be turned up and taken out Be careful not to damage any printed circuit board or the wiring The fuses F502 and F503 are now easy to get to see also diagram 10 Follow the same procedure in the opposite order to reattach t...

Page 14: ...IB A Pi W Pout W Pv W floating normal operation 10 dB normal operation 24 24 24 1 0 7 5 18 24 180 432 0 40 250 24 140 182 starting current 3 9 A Pi W input power UB IB Pout W output power Pv W leakage power Input characteristics electronically balanced Nominal input level 775 mV 0 dBu 10 kohms Power output characteristics balanced off ground potential Nominal output power with mains supply 4 x 100...

Page 15: ...d fault surveillance module for four outputs NRS 90208 balanced input transformer module for one input 13 SPECIFICATIONS OF THE OPTIONAL ACCESSORIES 13 1 NRS 90206 pilot tone surveillance module for four outputs Pilot tone frequency 19 kHz 1 Error detection threshold 12 mV Error message output collective fault message with READY relay 13 2 NRS 90207 ground fault surveillance module for four output...

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