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Servicing & Repairs - PAG V4-IPC Instruction Manual

Intelligent parallel charger

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SECTION 5
5.1
WARNING: To reduce the risk of electric shock, do not attempt any
servicing or repairs unless you are qualified to do so. Refer all
servicing or repairs to qualified servicing personnel. The charger
contains advanced electronics that do not require periodic
maintenance. Consequently there are no user serviceable parts inside.
5.2
Qualified electronics engineers who wish to gain access to internal
assemblies should note that parts of the power circuit retain a high
voltage even after the mains supply has been disconnected. Wait for a
period of five minutes following disconnection before commencing
disassembly, and be aware of charged capacitors.
5.3
When the charger is correctly connected to a mains supply and the
display is not functioning, it may be that a supply fuse has become
open circuit. Equipment supplied for use in the UK is supplied with a
standard UK mains cordset, complete with a moulded, fused plug. If
this fuse has become open circuit it should be replaced by another of
the correct rating (see 'Specification' section 2.12). USE ONLY A FUSE
OF THE CORRECT RATING. If the replacement of the fuse fails to
correct the above symptoms, do not attempt further fuse replacement.
It is likely that a fault has developed. Seek advice from your nearest
PAG dealer or direct from PAG Ltd., London, by telephoning +44 (0)20
8543 3131.
5.4
V4-iPC chargers feature a fail-safe shutdown mode. In the unlikely
event of an internal malfunction, an error message will be displayed on
the screen, see 4.15 above. This could be the result of any number of
undesirable situations from which the system is protecting itself, such
as the obstruction of ventilation slots, causing inadequate cooling, or
the microcomputer's detection of an internal fault. In these cases the
charger should be disconnected from the supply, any obstruction of
the air vent system removed, and the unit allowed to cool before
reconnecting to the supply. Should the charger re-enter the fail-safe
shutdown mode, more detailed investigation is required. Make a note
of the error message and seek advice from your nearest PAG dealer or
direct from PAG Ltd., London, by telephoning +44 (0)20 8543 3131.
5.5
Unqualified personnel should not attempt further investigation (see
paragraph 5.1 above). Any such interference would invalidate the
guarantee and invariably cause more damage than the original fault.
SERVICING & REPAIRS
7

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