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Doc No. DCP0000518  JH  12/7/99  rev2

AC power operation

For normal AC operation, plug the AC power
supply cord in a wall outlet of 230 V specified
voltage. The unit complies with BS415.

AC power cord
The wires in the mains lead supplied with the
unit are coloured in accordance with the follow-
ing code.

Green and Yellow

Earth

Blue

Neutral

Brown

Live

As the colours of the wires in the mains lead of
this unit may not correspond with the coloured
markings identifying the terminals in your plug,
please connect as follows.

Wire

Plug terminal

Green & Yellow ‘E’ mark

‘EARTH’ symbol mark
‘GREEN’ mark
‘GREEN AND YELLOW’ mark

Blue

‘N’ mark
‘BLACK’ mark
‘BLUE’ mark

Brown

‘L’ mark
‘RED’ mark
‘BROWN’ mark

Caution
To prevent electric shock do not remove
the cover

Upon receipt of the amplifier shipment, please
inspect for any damage incurred in transit. If
damage is found, please notify your local repre-
sentative and the transport company immedi-
ately. State date, nature of damage and whether
any damage was noticed on the shipping con-
tainer prior to unpacking. Please give the waybill
number of the shipping order.

The unit should not be placed in areas;
1. with poor ventilation
2. exposed to direct sunlight
3. with high ambient temperature or adjacent to

heat generating equipment

4. with high humidity or dust levels
5. susceptible to vibration

Unpacking

Содержание PDA500

Страница 1: ...l sound quality The pre amplification stage in the PDA series incorporates an advanced signal process ing system which allows tight control to be main tained over the signal This is achieved with only minimal degradation of the signal and is unno ticeable in normal operation This is far more advanced and sophisticated system than that found in many dedicated signal processing units The processor c...

Страница 2: ...EARTH symbol mark GREEN mark GREEN AND YELLOW mark Blue N mark BLACK mark BLUE mark Brown L mark RED mark BROWN mark Caution To prevent electric shock do not remove the cover Upon receipt of the amplifier shipment please inspect for any damage incurred in transit If damage is found please notify your local repre sentative and the transport company immedi ately State date nature of damage and wheth...

Страница 3: ...en to the signal inside the loop It is also advisable to check the system with a field strength meter Please note that the orientation of the field strength meter may influence the reading Mains Hum Background hum can sometimes be heard when testing an installation especailly when test ing with a induction loop reciever This is not caused by the loop system and will NOT nor mally be heard by heari...

Страница 4: ...ter a short delay heard again from the audience response microphone which picks up the signal amplified by the main PA system This will only occur when a loop system incorpo rating an audience response microphone is used in conjunction with a stage front of house signal feed to the line input Compand compress Compress Default pins 1 2 At a factory set level the com pression ratio will be automati ...

Страница 5: ...the same level as the receiver Vertical displacement If the loop is significantly higher or lower more than one to two metres than the receiver then the peak current required will be slightly higher Peak current calculation Refer to the current width graph to estab lish the required peak current The width of the loop is shown on the x axis The peak current is shown vertically on the y axis This is...

Страница 6: ...res Only use cable diameters recommened for each unit Speaker positioning If a speaker is placed near or beside a loop cable the cross over in the speaker may pick up the loop signal so try to keep speakers and loop cables as far apart as possible Normally this does not show up in use because loop and speaker have the same programme material only where the loop has a different signal to the speake...

Страница 7: ... Note For a two storey building the same loop position on different floors is also 90 degrees out of phase Non rectangular rooms Layout as per a basic pattern and step back the prongs to the shape of the room Each pattern should be considered as a many pronged fork The pattern should be spaced approx 2m from nearest wall next pattern prongs of the fork should be spaced approx 2m apart and should b...

Страница 8: ... any output level 20 Hz to 16 KHz 3 dB Distortion 0 05 THD 1 KHz Dynamic range 90 dB Noise 86 dB CMRR 84 dB Input level control Line ì to 6 dB Mic ì to 66 dB Mains voltage 230 V AC 20 Power Consumption PDA500 100 VA PDA1000 225 VA Dimensions Width 482 mm Height 44 mm PDA500 88 mm PDA1000 Length 243 mm Specification PDA 1000 Output Drive current Max peak 16 A EBU PPM 12 A Sine 1KHz 5 A RMS Loop cov...

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