Control Panel; Protect Leds - DIGISYNTHETIC DP4800 User Manual

CONTROL PANEL

A. FRONT PANEL
Channel¡¤
2
1. POWER: ON/OFF switch
2. CHA\B LEVEL : Adjust the volume of four channels
Control of the input level of the external signal: operates with continual
values which vary from £¢ fully closed (position £¢ -¡Þ £ ¢ -the signal is not
fed to the amplifier sections) to fully open (position 0dB -the signal is
sent to the amplifier sections at the same level as that with which it arrives
at the input). In other words, this control operates s an attenuator of the

3. PROTECT LEDs

Protection pilot lights.
If these LEDs light up, this indicates that one of the various protections
safeguarding the different sections of the amplifier and the loudspeaker
Enclosures has tripped due to an operating fault. In these cases, the
power output is normally switched off until normal operating conditions
are restored.
The following is a description of all the protections:
1) THERMAL PROTECTION ON TRANSISTOR: this protection intervene
whenever there is an excessive rise in temperature of the internal
heatsink.
4
DP 3200
PROTECT
CLIP
SIGNAL
A
3
4
5
Channel¡¤ B
6
2
"
" "
POWER
1
" "