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4 DISASSEMBLY / REASSEMBLY INSTRUCTIONS
General
4.1.
This section provides disassembly and reassembly procedures for the main components of the telephone.
These assemblies MUST be performed by qualified service personnel at an authorised service centre.
The following Warnings and Cautions MUST be observed during all disassembly / reassembly operations:
The equipment described in this manual contains polarised capacitors utilising liquid electrolyte. These devices are entirely safe provided
that neither a short-circuit nor a reverse polarity connection is made across the capacitor terminals. FAILURE TO OBSERVE THIS
WARNING COULD RESULT IN DAMAGE TO THE EQUIPMENT OR, AT WORST, POSSIBLE INJURY TO PERSONNEL RESULTING
FROM ELECTRIC SHOCK OR THE AFFECTED CAPACITOR EXPLODING. EXTREME CARE MUST BE EXERCISED AT ALL TIMES
WHEN HANDLING THESE DEVICES.
The equipment described in this manual contains electrostatic devices (ESDs). Damage can occur to these devices if the appropriate
handling procedure is not adhered to.
4.1.1
ESD Handling Precautions
A working area where ESDs may be handled safely without undue risk of damage from electrostatic discharge, must be
available. The area must be equipped as follows:
Working Surfaces
All working surfaces must have a dissipative bench mat, safe for use with live equipment, connected via 1M2 resistor
(usually built into the lead) to a common ground point.
Wrist Strap
A quick release skin contact device with a flexible cord, which has an integral safety resistor of between 5k2 and 1M2, shall
be used.
Containers
All containers and storage must be of the conductive type.
4.2. Disassembly
4.2.1
Case Removal
1.
Push the battery hook away from the handset and lift out the battery cover. The battery may now be removed from the
back of the handset.
MCUK011201C8
Service Manual
DISASSEMBLY / REASSEMBLY INSTRUCTIONS
WARNING
Caution
Figure 4.1: Battery Cover Removal
Section 4
– 19 –
10524-1
Issue B
Revision 0
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