Cloud CA4250 설치 및 사용자 설명서 - 페이지 9

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Front Panel Description

POWER SWITCH – press to turn the amplifier off:

it turns on automatically on initial application of the

AC supply. The integral white LED illuminates when

the amplifier is powered, either in its active state or in

Automatic Power Down (APD) mode.

Each amplifier channel has four LEDs on the front panel,

which function as follows:

2. POWERED (green) – illuminates when the channel is

active, i.e., it has been "woken up" when the output

signal level exceeds -65 dB relative to maximum output

level (typical threshold: may vary with programme

type).

3. SIGNAL (green) – illuminates when the output signal

level from the amplifier channel is at least 2.5 V

4. PEAK (yellow) – illuminates when the channel's limiter

is active, i.e., reducing gain.

rms

5. PROTECT (red) – indicates a fault condition. It

illuminates when the power amplifier stage is shut

down by the internal protection circuitry, which

will occur if excessive current or DC is detected at

the output terminals, or if the internal temperature

becomes too high. Over-current or DC fault conditions

can be cleared by removing the AC power supply for a

few seconds, but when the cause is over-temperature,

the amplifier will remain in its protected state until the

temperature drops (which will generally occur if the

input signal is reduced).

6. Ventilation intakes – these should always be

unobstructed when the amplifier is in use.

C l e a r l y b e t t e r s o u n d

CA Series Installation & User Guide v1.0