Care And Maintenance; Remote Operation - ATC P4 Four User Manual

High technology material finishes are used in this product. Surfaces are durable and
with a little care can be kept as good as new under conditions of heavy use. Normally a dry
duster will be all that is required to keep the finishes clean.
Heavy soiling can be remedied using an almost dry cloth that has been slightly moistened with a
non-abrasive household cleaner.
There are no components within the speaker that could be considered expendable, or that would
benefit from regular maintenance. There is no requirement for any kind of routine service work
and there is no schedule for preventative maintenance.
In the unfortunate event of any malfunction, as there are no user replaceable parts within the
speaker, repair should be referred to either the supplying dealer or consultant, the relevant
importer, or ATC. ATC has every confidence in the quality of each product that it manufactures;
please consult your local dealer or importer for applicable warranty terms.
Special facility for remote operation of the P4 is catered for by the inclusion of 5-pin DIN connector
on the rear panel. ATC does not supply a remote operation unit, but the connections required to
make use of this function are as follows:

Pin 1 - acts as 0 Volts / logic ground

Pin 2 - Standby / operate mode can be toggled by momentary grounding of pin 2.

Pin 3 - will be at 5 Volts when the amplifier is in normal operating condition

Pin 4 - will be at 5 Volts when the amplifier is in standby

Pin 5 - will be at 5 Volts on any error including drive limit

Pins 3,4 & 5 have a series resistance of 240R allowing sensing or drive of LED's only.
C
A R E A N D
R
1 0 Volt
2 standby - control
3 pwd up - out
4 standby - out
5 error - out
M
A I N T E N A N C E
O
E M O T E P E R A T I O N
5 1
4 2
3
Remote
6