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R a d i o S y s t e m s , I n c .

D A - 2 / 4 x 4 b M a n u a l

5 / 0 7

P a g e 1 1

Specifications

Frequency Response

+0, -.1dB 20Kz – 20kHz

Distortion THD + N

.002% over 20Hz – 20kHz, any output level from

+4dBm to +24dBm (with 600 ohm load)

Distortion IMD SMPTE

.003% any output level from +24dBm (with

600 ohm load)

Distortion DIM

.002% any output level from +4dBm to +24dBm (with

600 ohm load)

Crosstalk

-105dB over 20Hz – 20kHz

Noise

102dB below +4dBm output level unity gain

measurement bandwidth 20 Hz - 20kHz with 600 ohm

input and output termination

Maximum input

+28dBm

Maximum output

+25dBm (with 600 ohm load)

Headroom

21dB above +4dBm output (with 600 ohm load)

Dynamic Range

123dB

Maximum Gain

jumper selectable for: 16dB, 26dB, or 36dB

CMRR

-50dB over 20Hz – 20kHz

Input Impedance

40k ohms

Output Impedance

60 ohms

LED Audio Input Indicators

-24dBm input level audio present trip point

+24dBm

input level audio overload trip point

Содержание DA 2x4b

Страница 1: ...R a d i o S y s t e m s I n c D A 2 4 x 4 b M a n u a l 5 0 7 P a g e 1 DA 2x4b 4x4b Distribution Amplifier Manual EMC and Safety Conformity ...

Страница 2: ......

Страница 3: ...ounting 4 Operation 4 Connections 4 Connection Examples 6 Parts Layout Power Supply 7 Parts Layout Amplifier 8 Parts List Power Supply 9 Parts List Amplifier 10 Specifications 11 Using Active Balanced Circuitry 12 Warranty 14 Repair Policy 14 Return Instructions 14 Declaration of Conformity 15 ...

Страница 4: ...by 20dB in 10dB steps by changing the internal gain straps To locate and reset these jumpers refer to the parts layout for the location of JU1 and JU2 The lid of the unit must be removed to access these jumpers Place a shorting strap across the center and rear pin pin towards the rear barrier strip to increase input gain by 10dB Place a shorting strap across the center and forward pin to increase ...

Страница 5: ...utputs mono 2 inputs x 4 outputs stereo Additionally by wiring the inputs in parallel the following configuration is possible 1 input x 16 output mono Refer to the connection diagram on the following page for details AC line voltage is user selectable from the lid of the cabinet by inserting a thin shafted screw driver through the vent holes to move the red line voltage selector switch to the left...

Страница 6: ...A 2A 1A 1A G A Outputs No straps Left or Input 1 Right or Input 2 For use as a 1 input x 16 output mono Left or Input 3 Right or Input 4 For use as a 4 input x 4 output dual stereo or quad mono Note The 2x4 mono version uses only the left hand circuit board Configure it as shown above for Illustration 1 1 input x 8 output mono Illustration 3 2 input x 4 output stereo G 4D 4D 3D 3D 2D 2D 1D 1D G D ...

Страница 7: ...R a d i o S y s t e m s I n c D A 2 4 x 4 b M a n u a l 5 0 7 P a g e 7 Parts Layout Power Supply ...

Страница 8: ...R a d i o S y s t e m s I n c D A 2 4 x 4 b M a n u a l 5 0 7 P a g e 8 Parts Layout Amplifier ...

Страница 9: ...AP 100UF 25V RAD 20 C3 C7 5743 2 CAP 1UF FILM C4 C8 7012 8 DIODE1N4005 D1 D2 D3 D4 D5 D6 D7 D8 10489 1 FUSEHOLDER F1 10847 1 FUSE 0 3 AMP F1 10491 1 IECPOWERCONNECTOR J1 10490 1 SAMTEC 8 PIN FRT HEADER J2 2831 1 RES 1K 1 2W 5 R5 9585 2 RES 237 OHM 1 4W 1 R2 R4 9582 2 RES 2 61K 1 4W 1 R1 R3 10492 1 SWITCH POWER DPDT 110 220V SW1 10788 1 TRANSFORMERDATOROID T1 1076 1 VR LM337T U2 1077 1 VR LM317T U1...

Страница 10: ...8 R206 R233 R197 R227 R236 R215 R224 R239 R209 R203 R242 R200 R212 16355 16 RES SMT 825 OHM 1 8W 1 R245 R260 16005 50 CAP SMT 1UF 50V CERM C1 C12 C15 C24 C35 C38 C47 C54 C95 C98 C115 C116 C164 C178 C119 C124 C126 C133 C136 C143 C166 C168 C170 C172 C174 C176 16151 12 CAP SMT 330PF 50V CERM C11 C13 C14 C103 C106 C109 C112 C33 C34 C36 C37 C10 16346 48 CAP SMT 47PF 50V CERM C87 C94 C79 C85 C147 C162 C...

Страница 11: ...24dBm with 600 ohm load Crosstalk 105dB over 20Hz 20kHz Noise 102dB below 4dBm output level unity gain measurement bandwidth 20 Hz 20kHz with 600 ohm inputandoutputtermination Maximuminput 28dBm Maximumoutput 25dBm with 600 ohm load Headroom 21dB above 4dBm output with 600 ohm load DynamicRange 123dB MaximumGain jumper selectable for 16dB 26dB or 36dB CMRR 50dB over 20Hz 20kHz InputImpedance 40k o...

Страница 12: ...onnections short direct and well separated from AC power wires To drive a single ended load from an active balanced source use coaxial wire to center conductor and ground to shield leaving the output unconnected To feed an active balanced input from a single ended source use coaxial wire connecting the hot center conductor to Connect the shield to ground and put a jumper from ground to When drivin...

Страница 13: ...des balanced inputs In many dual trace oscilloscopes balanced signals may be displayed by running the two inputs in the add mode with one input switched to invert To perform a test with single ended equipment and outputs must be tested independently and their results added Testing only a single output results in a 6 db loss in output level The active balanced equipment interconnection format makes...

Страница 14: ...ence During the warranty period there will be no charge for parts or service made to units which show no sign of misuse by customer or lightning caused damage The customer is responsible for the cost of shipping their unit back to Radio Systems for repair During the warranty period shipment of small parts and assemblies may also be made at a charge to the user Emergency shipments of replacement pa...

Страница 15: ... accordance with the following product standards EN55013 Emission EN55020 Immunity EN61000 Harmonic Voltage Fluctuations EN60065 Product Safety Following the provisions of 89 336 EEC EMCDirective 92 031 EEC Amendment Directive of 89 336 EEC 73 023 EEC Low Voltage Directive 93 068 EEC Amendment Directive of 73 023 EEC ______________________ _______________________ DateIssued Signature d d d d danie...

Страница 16: ...For Assy Part DA 4x4b 5 07 601 Heron Drive Logan Township NJ 08085 Phone 856 467 8000 Fax 856 467 3044 http www radiosystems com ...

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