www.cleveracoustics.co.uk
ZM4 4 Zone Mixer
User Manual
6
Operating instructions
9. Monitor level control:
The monitor output volume is adjustable. Turn the level control anti clockwise to the lowest setting,
or turn clockwise to adjust to the highest setting. This is used to control the volume for the 1W 8Ω
loudspeaker output on the rear panel of the zone mixer.
10. Zone output level control:
The master volume control affects all audio sources within the amplifier, routed to the selected zone.
Turn the level control anti clockwise to the lowest setting, or turn clockwise to adjust the overall output
to the highest setting. Adjustments should be made gradually to avoid any sudden changes to the audio
output.
11. Monitor output selector:
To route one of the output zones to the monitor & headphone outputs, press the Monitor selection
button. The monitor output volume can then be adjusted using the Monitor Volume Control.
12. Power LED:
The Power LED will illuminate to indicate the zone mixer is powered on. If the power LED is not
illuminated, check first the position of the on/off switch and then check the mains (including fuse) or DC
power supply.
13. Power switch:
On/Off control for the zone amplifier. Note: The on/off power switch does not have any control over the
24V DC power input.
14. AC mains power input:
Before connecting the amplifier to the local mains voltage outlet should be checked to ensure the
available supply is 240V~AC 50Hz. This product is CLASS1 and requires a protective mains earth to be
connected at all times. DO NOT remove or disconnect the earth.
15. AC mains fuse:
Disconnect from the mains power supply before attempting to replace the mains fuse. Replacement
mains fuses must be the same rating as the original. T3.15AL 250V for 220-240V AC mains supply or
T6.3AL 250V for 110-120V AC mains supply.
16. AC voltage selector:
The ZM4 zone mixer features a dual voltage mains input. Disconnect the unit from the mains voltage
power supply before attempting to change the mains input voltage. Care should be taken to select the
appropriate mains input voltage to match that of the mains supply voltage.
17. 24V DC power input:
The ZM4 zone mixer features a 24V DC (600mA) power input for operation from a DC backup power
supply. When both the DC and AC power inputs are connected, the ZM4 will operate using the AC mains
power input and automatically switch to DC operation should the AC power supply fail. Care should be
taken to observe the polarity and fuse requirements when connecting the DC power source.
