
Concept
CD640 CD850S Manual
We at Laney are extremely pleased that you have decided to select a Concept product for
your sound requirements and we wish to reinforce your judgement by ensuring you get
off to a flying start by including this comprehensive user manual to assist you in getting
to know your equipment.
Before switching on please read this manual carefully since, whilst you may well be an
experienced user, no two brands are the same, and on reading this manual you will
become aware of the subtle advantageous differences that Concept offers over its
competitors.
UNPACKING
On unpacking your Concept mixer amp, please check carefully for any signs of damage
that may have occurred whilst in transit from the Laney factory to your dealer. In the unlikely
event that there has been damage, please re-pack your unit in its original carton and
consult your dealer.
We would strongly advise you to store away your original transit carton, since, in the
unlikely event that some time in the future your unit should develop a fault, you will be able
to return it to your dealer for rectification securely packed.
Your Concept mixer amp should be fitted with a three pin 'grounded' (or 'earthed') plug.
Please make sure that the unit is powered from a 'grounded/earthed' outlet.
If changing or fitting a plug yourself, ensure that the applicable wiring code is adhered to;
for example, in the UK, the cable colour code for connections is as follows:
The Concept product should never be exposed to moisture or wetness under any
circumstances, since this would represent a possible shock or fire hazard, and may cause
expensive damage to your valuable possession.
In the unlikely event that a fuse should blow, it is imperative that you or your engineer, use
a correctly rated replacement.
Details of the fuses required are printed on the back panel of the mixer amp. Please take
special care to use a 'time delay' fuse wherever stated.
THANK YOU
IMPORTANT SAFETY INFORMATION
EARTH OR GROUND
NEUTRAL
LIVE
GREEN/YELLOW
BLUE
BROWN
1