www.prolight.co.uk
DMA 200 Mixer Amplifier
User Manual
6
Operating instructions
Problem Chart
Cleaning and Maintenance
We recommend a frequent cleaning of the product. Please use a soft lint free and moistened cloth.
Never use alcohol or solvents.
There are no serviceable parts inside the product except for the fuse. Maintenance and service
operations are only to be carried out by authorised dealers.
Replacing the fuse
Only replace the fuse with a fuse of the same type and rating.
Before replacing the fuse, unplug the mains cable.
Procedure:
Step 1:
Open fuse holder on the rear panel with a screwdriver.
Step 2:
Remove the old fuse from the fuse holder.
Step 3:
Install the new fuse in the fuse holder.
Step 4:
Replace the fuse holder in the housing.
Should you need any spare parts, please use genuine parts.
Should you have any further questions, please contact your dealer.
Problem
Cause
Solution
No power
The power cable is not connected
Check the power cable and any extension cables
No sound
The power cable of the respective product is
not connected correctly or not at all.
Check the power cable and if the plugs are properly
connected with the sockets
The connection socket or the plug is dirty
Clean the socket and/or the plug
Noise
The input signal is too strong
Reduce the input signal via the gain control
Fan does not work,
LEDs do not light up
The power cable is not connected
Connect the power cable
Protect LED lights
up permanently
DC voltage on input
Switch amplifier off and have the product checked
by a service technician
Amplifier overheats due to obstruction
Clean the fan grill
Impedance of speakers too low
Ensure minimum 4Ω load per channel
Short circuit in speaker connection
or in speakers
Check speakers and connections
CAUTION! - DANGER TO LIFE
DISCONNECT FROM THE MAINS BEFORE
STARTING MAINTENANCE OPERATION
