Protections & Installations - Studiomaster Professional DPA 2000 Owner's Manual

Protections & Installations
Thermal Protection
Output Devices
Due to excessive heating of output devices, the thermal
protection circuits brings the audio signal to mute status.
Onset of thermal protection circuit is indicated by glowing
of Protect LED in each channel. To restore normal
operating condition, it is recommended to switch off the
amplifier, wait till it cools down & then turn on the
amplifier for normal operation.If the problem persist
rectify the cause.
DC Protection
Inbuilt circuitry is provided to protect the loudspeaker
from any offset DC voltages.
19" Rack Installation
The amplifier is designed for use in a standard 19" rack
with height of 2U units (DPA 2000) and 3U units (DPA
3200, DPA 4500 & DPA 5000).
In order to provide sufficient support base to the heavy
amplifier, it is essential to use the 19" rack system with
side support channels.
The installed amplifier, therefore, is well supported by the
side support channels as well as rigidly fixed on the rack
through the two rack mount side brackets dully fitted with
'U' type handles, as shown in the figure below.
I
CH 1
PO WE R
-6
-10
O
-3 PRO TEC T
-15
CLIP
-30 SIGN AL
-1
-15
-80
0dB -30
POW ER
CH 2
-6
-10
-3
-1
-80
0dB
Cla ss H Pr
ofe ss ion al
Po we r Am
pli e r
Overload / Short Circuit Protection
Protection circuit is provided in both channels for
the safety of output devices in case of overloading
or mismatching of impedances at outputs. This
circuit brings the input signals to respective
channels are pressed.
AC Mains Fuses
DPA 2000 - T 12.5AL/250V
DPA 3200 - T 20AL/250V
DPA 4500 - T 20AL/250V
DPA 5000 - T 25AL/250V
Table Top Usage
The 'U' handles are helpful in easy portability of
the amplifier for table top usage.
I
CH 1
POW ER
-6
O -10
-3 PRO TEC T
-15 CLIP -10
-30
-1 SIGN AL
-15
-80
0dB
-30
POW ER
-80
CH 2
-6
-3
-1
0dB
Cla ss H Pr
ofe ss ion al
Po we r Am
pli e r
17