Dove Systems SM 6 - Manual (Page 6)

of malfunctions common to solid state dimmers: "failed off", in which the lights do not come on, and
"failed on", in which the lights cannot be turned off. If your system has "failed off", check that a lamp
load is connected and that the lamp is not burned out. Verify that the primary power (supply outlet)
is live and that the dimmer is powered ON (indicator lights glowing). Check all fuses on the dimmer.
The ceramic body channel fuses will need to be checked for continuity with a tester. All switches
and faders should be set "on" or up full.
Make sure that the loads are plugged in and that all extension cords are continuous and that they go
to the loads you think they go to. Check load circuits by plugging them into a known live "non-dim"
circuit not on the dimmer pack. "Failed on" dimmers will stay on until the fuse is removed. Pull all
faders to zero, turn off the BLACKOUT switch and kill the Master. If the channel remains ON, the
fault is in the Triac or control circuitry and requires a technician to repair.
The most common malfunction in solid state dimmers is a failed thyristor (triac or SCR). They can
either "fail on", in which the light cannot be turned off, of "fail off", in which the light cannot be turned
on. A "failed off" condition also may cause a resistor on the circuit board to burn. This failure is
almost always caused by a short in the load it controls. The short can be in the cable, in the
connectors, in the light fixture, or in the bulb itself. Although the dimmer circuit breaker or fuse will
open, it may not be fast enough to save the thyristor and the thyristor will need to be replaced.
Please check the load: plug it into a known good wall outlet before plugging it into other dimming
channels. Caution, a short in the load may trip a building breaker.
OTHER PROBLEMS: Channels which flicker or cut in and out are victims of an intermittent connection
somewhere. Check all cables and connectors for loose connections or breaks. Broken slide controls
will also cause a channel to cut in or out. This can also occur if dirt, coffee, or some other liquid is
spilled into the slide control slot. Curing this problem usually requires the replacement of the control.
Cleaning with WD 40 or TRI-FLOW may fix it temporarily.
For Service Send To:
Dove Systems
3563 Sueldo Street, Suite E
San Luis Obispo, California 93401
Phone: (805)541-8292
Please include a note describing the problem, your address, telephone number, and, if needed, the
date upon which your unit should be returned.
LIMITED WARRANTY
The manufacturer agrees that its products shall be free from defects in material or workmanship over
a period of one year from date of shipment from the factory. Said warranty will not apply if equipment
is used under conditions of service for which it is not specifically intended. The manufacturer is not
responsible for damage to its apparatus through improper installation, physical damage, or poor
operating practice.
If any device is found unsatisfactory under the warranty, the buyer should notify the manufacturer,
and after receipt of shipping advice, buyer may return it directly to Dove Systems, San Luis Obispo,