PROBLEM RESOLUTION
In the case of a system malfunction proceed as follows:
1.Check fuse continuity and replace if necessary: fast blow fuse 3,15 A.
2.Disconnect loudspeaker connections at the controller box and check the Ω reading between the
connections using a tester.
A) If reading is zero (short circuit) or infinity (open circuit), verify the loudspeaker line continuity and
if this is ok, but the problem persists then return only the driver to your Costumer Service Centre.
B) If reading is between 3 - 5 ohm, then the loudspeaker unit is functional and only the electronic
controller box should be returned to your Costumer Service Centre.
1) The Warranty period is 2 years from date of purchase on production of the appropriate sales
invoice.
2) Should the original sales invoice not be available, then the 2 year warranty period will be
valid from date of production.
3) The Warranty becomes null and void in the case of incorrect utilization or disregard of the
instructions contained herein.
4) The Warranty only covers original production defects.
5) The Warranty does not cover any related installation costs involved.
6) Transport costs are refundable only in the case where warranty has been duly recognized
and accepted by Marco Spa. These costs will be limited to the actual shipment costs between
Marco Spa warehouse and the client's delivery address.
7) No credit notes or replacement items will be issued prior to the receipt and proper testing of
any Marco goods that are deemed faulty.
WARRANTY
PLEASE NOTE.
Operations of this product are activated whether using wiring harness on terminal board or using
the control panel that can be connected to the electric unit through RJ45 cable 8 poles not crossed
(pin to pin).
If functions are activated with the wiring harness of the terminal board, they must be deactivated
using the wiring harness of the terminal board.
If functions are activated with the wiring harness of the control panel ( SB, SB-MC,SB-ML), they
must be deactivated using the wiring harness of the control panel.
