Dynacord X1201 Benutzerhandbuch - Seite 9

Blättern Sie online oder laden Sie pdf Benutzerhandbuch für Verstärken Dynacord X1201 herunter. Dynacord X1201 18 Seiten. Modular power amplifier

FRONT VIE W

Note:

The power amplifier supports the modules with ±15VDC. The power amplifier's integrated power supply

is capable of providing a maximum continuous current of +/- 300mA. You can easily check the overall

power consumption by simply adding the individual power consumption stated for each inserted module

(separate data sheet). In any case, the result should be less than 300mA. The input module Xi-11 for

instance needs 18mA and a V-Systems filter module needs approx. 70mA. If two V-Systems and one

XiII-module are inserted, the resulting total power consumption is 158mA; clearly below the possible

maximum continuous current.

2. LIMIT

This indicator lights whenever the internal dynamic limiter is activated and the power amplifier is operated

at the borderline of clipping or generally at the top margin of its range of operation. Short-term blinking is

not a problem since the internal limiter can controll input level up to +20dBu with a maximum THD of 1%.

If this LED is constantly lit, reducing the overall output level is recommended to prevent that the connected

loudspeaker systems are being damaged by overload.

Whenever an audio signal with at least 1.4Veff is present at the output, the OUT-LED lights. When there

is a short-circuit in one of the loudspeaker connection cables or one of the protections is activated this

indicator is dimmed.

The POWER switch is used to switch the appliance's power on. An initial inrush current limiter avoids that

the power amplifier gets damaged from mains peaks. This also prevents that the mains fuse blows when

the power amplifier is switched on. The loudspeaker power outputs are delayed switched by approx. 2

seconds via relays, so that no switching noise is audible.

This indicator lights as soon as the POWER switch gets pressed; respectively as soon as the power

amplifier is operational. In case the Power ON indicator does not light, the appliance is not correctly

connected to the mains network or the primary fuse is defect. Please also refer to the description of the

STANDBY function.

6. PROTECT

Whenever the PROTECT indicator lights, one of the internal protections against thermal overload,

short-circuit, Back-EMF, HF at the output, etc. has been activated. In that case, the output r elays separate

the power amplifiers from the connected loads, preventing the loudspeaker systems or the power amplifier

itself from being damaged. Find and remove the source that caused the faulty operation - e. g. a

short-circuit in one of the loudspeaker connection cables. If the error has been caused by thermal overload,

you have to wait for a short period of time until the power amplifier automatically regains its operational

state.

7. STANDBY

X-Amp Series power amplifiers are prepared for remote control operation. Only when the amplifier is

operated in this mode the STANDBY indicator is active. STANDBY mode is activated by switching the

power amplifier on by use of the Power-ON switch. The STANDBY LED lights indicating that the appliance

is connected to the mains and operational. POWER-ON mode is activated via the remote control unit.

The STANDBY LED is dimmed and the POWER-ON LED lights.