T+A Elektroakustik PT 820 M User Manual Download

Page: 49 / 60

Setting up

Carefully unpack the equipment and store the original
packaging in a safe place.

The  carton  and  packing  materials  have  been  specially
designed  for  this  series  of  equipment.  They  provide  a
safe  container  for  the  system,  and  you  may  need  them
for subsequent transport.

Please read through the Safety Notes in these
instructions, and be sure to observe our recom-
mendations relating to location and setting up.

Set up the machines one on top of the other as shown in
the wiring diagrams in the appendix.

Note:

If you prefer to set up the machines on a single level (in-
line arrangement), you will need the

'MQ 820'

mounting

set, which is available as an accessory. This includes the
longer cables required, and sealed case covers without
cable openings.

If you wish to set up the system on a delicate (painted)
surface, check on an unobtrusive area that the equip-
ment’s feet will not damage the surface.

The

remote control receiver

is located within the area

of the integral screen.

For this reason it is important to set up the system so
that there is direct visual contact between the screen and
the remote control transmitter (handset). The maximum
range is 6 metres.

Infra-red reception can be disturbed if lighting levels are
excessive. Energy-saving bulbs and fluorescent tubes
are particularly powerful sources of interference.

The sketch below shows the radius of action of the
remote control system.

If  the  reception  conditions  are  especially  difficult  (e. g.
concealed  location,  or  lighting-induced  interference,  we
recommend  the  use  of  the

E 2000

external remote

control receiver.

Wiring

Note:

Disconnect the mains plug at the wall socket before
carrying out any wiring on the system.

Open the back panel flaps by swivelling them upward.

•

For the stereo version of the

M 820

system (i. e. no

DD 820 M

surround decoder), please connect the

equipment as shown in wiring diagram 1a (standard) or
1b (bi-wiring). You will find the wiring diagrams in the
Appendix.

•

For the surround version of the

M 820

system (i. e.

including the

DD 820 M

surround decoder), please

connect the equipment as shown in the wiring diagram
included in the

DD 820 M

operating instructions.

Route the leads running to the upper units in the stack
through the appropriate cover openings in the lower
units.

Mains cables, loudspeaker cables and the

LINK

leads

should be kept as far away as possible from signal leads
(Cinch leads) and the aerial cable, to avoid adverse
effects on reproduction quality.

To  achieve  maximum  possible  signal  :  noise  ratio  we
recommend  that  you  twist  together  the  two  Cinch  leads
between  the

PT 820 M

and the

PA 820 M

as shown in

the drawing below.

The right-angled aerial plug supplied should be used to
connect your aerial system to the

PT 820 M

When you have completed all the connections please
close the back panel flaps.

Caution!

Please note that the back panel flaps are spring-loaded,
and close automatically. To avoid trapping your fingers,
close them by holding them from the rear, and not from
the sides.