Cloud Electronics CX242 - Manual (Page 5)

CX242: I NSTALLATION AND OPERATION MANUAL 4
4 Music Inputs
The unit has four stereo line inputs which are suitable for most music sources such as
compact disc players, tape players and tuners etc. All inputs are unbalanced and use
RCA phono sockets. The input impedance is 100k ohms.
4.01 Sensitivity & Gain Control
All four stereo line inputs have a pre-set gain control on the rear panel adjacent to the
respective input sockets. The nominal input sensitivity is 0dBu (775mV) and this can be
varied from -12dBu (195mV) to +12dBu (3.08V). The pre-set gain controls should be set
so that all the input signals are operating at the same level and the front panel level
control has an optimum range of control.
4.02 Music Control - Local or Remote
The music source and music level control functions can be operated from the front panel
or remotely by using the optional remote source/level plate RSLC-1. This plate can be
positioned up to 100 metres from the CX242 and two core cable with overall screen
should be used. The front panel mounted anti-tamper panel should be removed by using
the allen key provided; depress the switch marked 'REM' to select remote control
operation of the desired zone (see Figure 1). Self adhesive labels are provided to identify
the signal source on the front panel.
4.03 Priority
When a Juke Box or Spot Announce Player is connected to the CX242, fully automatic
priority over any selected line input can be achieved by using the Line 4 input and
activating the 'L4 PR' switch concealed behind the anti-tamper panel.
When this mode of operation is selected, the unit will operate normally until a signal is
detected on channel 4 and this causes the selected signal (usually background music) to
mute, allowing the signal on line 4 to operate with priority.
Once the signal on line 4 ceases, the selected music signal will smoothly restore to its
former level. The time taken for the selected signal to be restored can be set at 3, 6 or 12
seconds by fitting the appropriate jumper (J1) on the printed circuit board. The factory
default release time is 3 seconds. The line 4 priority option can be switched to operate on
either or both zone outputs.
4.04 Mono Operation
When the mono mode of operation is selected, use the left output socket. A mono music
signal is present on both the left and right output sockets but the signal level of the two
outputs is controlled independently.
15/07/02 V4