VS Security Products LTD
ZZ009161, ZZ009178
Page 8 of 13
6.3 Cooling Fan
The cooling fan is of the conventional axial type powered from the ac voltage supply. The unit is over temperature and over
current protected and does not require servicing. However in the event of failure the fan may easily be replaced from the rear
of the degausser.
6.4 Internal Components
Most of the internal components are replaceable, i.e. the solid state relay, toroidal transformer and the thermal switches
mounted on the degausser coil. However the tuning capacitors and the degaussing coil are not spared items and if found
to
be faulty the unit should be returned to VS Security Products for repair. To access the components inside the degausser the
laminate cover must be removed. This entails breaking the adhesive seal using a sharp blade.
6.4.1 Solid State Relay Replacement
A thermally conductive compound should be used to ensure adequate heat dissipation from the relay to the metal case.
6.4.2 Thermal Switch Replacement
Care must be exercised when replacing either of the switches on the degausser coil. The switches are fitted using an epoxy
resin and it is recommended that the new switch be fitted in a new position on the coil and the old switch be left in place. The
wire connections are of the 'push on' spade type and are easily transferred to the new switch. A high temperature epoxy resin
part no. EA 200 001 should be used to secure the new switch.
6.4.3 Cover replacement
The laminate cover should be cleaned of old adhesive before refitting, using the sealant part no. EA 100 007.
SECTION 7: TABLES
7.1 Basic Fault Finding Table
The table below assists fault finding down to component levels. However, should the degaussing coil or tuning capacitors be
found to be faulty it is recommended that the unit be returned to VS Security Products for repair.
Function
Symptoms
Possible Fault
Location
Fails to degauss media
Circuit breaker CB1
repeatedly tripped
Incorrect supply voltage / frequency
Faulty degauss coil L1 and / or
tuning capacitors C1
-
C4
User source
Inside centre and left
-
hand side
Power lamp
Fails to illuminate
Loss of mains supply
Tripped circuit breaker
Faulty switch
Faulty neon
User source
Rear panel
Front panel
Front panel
Degauss lamp
Fails to illuminate /
flashes
Extensive use of degausser caused
overheating. Allow unit to cool (Not a
fault)
Faulty Neon
Faulty solid state relay R1
Faulty thermal switch SW2
Faulty filter / transformer TX1
Front Panel
Inside on front end of
degaussing coil
Inside on front end of
degaussing coil
Inside front on left hand
side
Cooling Fan
Fails to operate
Faulty thermal switch SW3
Faulty Fan M1
Inside on front end of
degaussing coil
Rear panel
