VS Security Products LTD
ZZ009167, ZZ009171
Page 10 of 15
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.
NOTE:
The degaussing coils are powered as part of a tuned resonant circuit. This allows quite high circulating currents to be
generated within the degaussing coils, with minimal current consumption from the mains voltage supply. However, this
technique requires that the waveform of the supply voltage contains minimal harmonic distortion. A distorted waveform will
result in an increase in current consumption.
The typical current consumption figures provided in this manual are when powered from a supply with minimal distortion. Any
increase in current consumption due to a distorted waveform will have minimal effect on the degausser performance,
however, excessive current consumption should be avoided for obvious reasons. In the event of unexplained high
currents,
please consult your supplier
.
7.2 Current Monitor Test Points
The following table contains typical current values to be measured at specific points in the equipment.
The values given are in amperes and may differ slightly from those actually measured due to component tolerance plus
effects due to operating temperature.
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
Current monitor test points
(Refer to circuit diagram)
Model
Voltage / Frequency
1
2
3
4
5
6
ZZ009167
220v
-
240v 50Hz
10
N/A
71
30
37
0.09
ZZ009171
220v 60Hz
11
6
72
39
29
0.19
