Warwick CCL ND 4, CCL 210 ND 8, CCL ND 8 owner manual Protective Circuits, Getting Started

Short-circuit:

Direct current (DC): HF oscillation: Temperature: Limiter:

PROTECTIVE CIRCUITS

Your new Warwick amplifier is equipped with a series of circuits to prevent it from destruction in case of inadequate operating conditions:

Power-up delay: When the unit is switched on, the SPEAKER OUT sockets are activated with a slight delay to protect the loudspeakers.

In the event of a short-circuit at the power amp outputs, this feature prevents the output stage transistors from destruction by a fast responding current limitation.

This circuit continuously monitors the power amp output for direct current and protects the loudspeakers from overload in case a transistor burns out.

This safety feature prevents from damages caused by frequencies above 20 kHz (feedback, etc.) by switching the power amp off.

Should the temperature controlled fan cooler prove to be insufficient in extreme conditions, this circuit protects the output stage transistors from destruction by switching the device off.

In order to protect the loudspeakers the combos CL and CCL are equipped with a limiter that limits the power amp outputs to 200 watts and 300 watts respectively.

Note: One of the protective circuits is active when you find the MUTE LED is lit without having switched MUTE on.

MUTE LED is continuously on even though you have not switched on MUTE. In case of a short-circuit please check the speaker cable. The amplifier must then be switched off and on again, to get back into playing mode after having removed the short-cir- cuit. In any other situation the amplifier automatically switches back to playing mode as soon as it detects the fault has disappea- red (e.g. the amplifier has overheated and cooled down again).

GETTING STARTED

1.	Make sure that loudspeakers capable of sustaining the load of a bass signal are connected to the SPEAKER OUT sockets,
	meaning the speaker unit should be linked to the SPEAKER OUT at the combos.
2.	Make sure that the mains lead is connected and all external devices (effects) are properly connected and working.
3.	Set the MASTER control to zero.
4.	Plug your bass guitar into the amplifier's INPUT with a shielded line-cable.
5.	Press the POWER switch to turn the device on.
6.	Switch off MUTE - the red LED will turn off.
7.	Switch the LIMITER off (the 2-colored LED will turn off).
8.	Turn up all volume controls of your bass guitar.
ENGLISH
9.	Adjust the GAIN control until the clip LED flashes.
10.	Set the MASTER control to your desired volume.
11.	Use the sound controls / switches to adjust the sound as described in the respective chapters FRONT PANEL CONTROLS.
12.	If necessary readjust GAIN.
13.	Use the LIMITER (LED green) to limit the preamp signal and fix its threshold (LED switches to red) using the GAIN control.

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