Руководство Пользователя для Crown ce-1000

Input Sensitivity Switch
This two-position Input Sensitivity switch is located 
near the input connectors. It lets you select between 
1.4 V input sensitivity or 26 dB gain. Please see 
Section 2.7 in this manual for details.

Mode Switch
This two-position switch selects either Stereo or 
Bridge-Mono mode of operation. Stereo mode pro-
vides identical power output to each of the two 
amplifier output channels. Bridge-Mono mode 
combines the two amplifier output channels into a 
single mono channel with twice the voltage of a sin-
gle stereo channel.

Do NOT select Bridge-Mono mode without 
first making sure the amplifier has been 
wired in a Bridge-Mono configuration. For 
more information on wiring for Bridge-Mono mode, 
see Section 2.6.2.

Fault Jack
This is an RJ-11 jack (which looks like a telephone 
jack). By attaching a signaling device to the Fault 
jack, you can monitor the amplifier’s Fault status 
from a remote location. See Section 4.2.2 for more 
information on fault monitoring.

Barrier Block Inputs
For each channel, this row of screw terminals pro-
vides a balanced input, which is in parallel with the 
channel’s Combo input connector.

Neutrik Combo Input
One per channel, this combination 1/4-inch phone 
jack and XLR connector provides a balanced or 
unbalanced input.

®

One per channel, this Neutrik Speakon

®

 connector 

with four terminals connects to loudspeakers.

See Section 4.2.2 in this manual for more informa-
tion on fault monitoring and suggestions for signal-
ling device circuity. 

Some fault conditions may cause the output of the 
amplifier to be muted. 

Clip Indicators
These are two red LEDs (one per channel). The Clip 
Indicator turns on when distortion is audible in the 
amplifier output.

Signal Indicators
These are two green LEDs (one per channel). The 
Signal Indicator illuminates when a signal (> –40 
dBm) is present at the INPUT of the amplifier for 
that channel. Because these indicators receive the 
signal before the level controls, they can be used to 
troubleshoot wiring problems within a system. If the 
Signal indicator for a channel is not lit, no signal is 
reaching the amplifier on that channel.

Power Indicator
The green Power indicator lights when your CE-
Series amp has been turned on and has power. 

Level Controls
Two rotary detented Level controls (one for each 
channel) are are used to adjust each channel’s out-
put. 

If you wish, the level control knobs may be pulled 
from the front panel and the holes plugged with the 
supplied caps to minimize tampering of control set-
tings.

Power Switch
The power switch turns the amplifier on (“I”) or off 
(“O”). 

Note that dangerous voltages may still be 
present in the amplifier even when the 
power switch is in the off (“O”) position. 
Before moving the amplifier or making any wiring or 
installation changes, it is important to also discon-
nect the power cord from the amplifier or power 
source. 

Reset Switch
The push-button reset switch is used to reset the 
circuit breaker that protects the power supply. 

Fault Indicators
Two red LEDs (one for each channel) are located on 
the front panel. The Fault Indicators are normally 
OFF, but will blink under five different conditions:

1. When the amplifier is first powered up, until the 
unit is ready for operation.

2. If the heatsinks reach a temperature above normal 
working limits.

3. If the transformer thermal protection circuit is 
activated.

4. If the amplifier output wires develop a short-cir-
cuit.

5. If the amplifier output stage stops operating.

The fault status of the amplifier can also be moni-
tored remotely by attaching a signalling device to 
the Fault jack located on the amplifier back panel.