Panasonic EB-GD30 - Manual (Page 25)

DISASSEMBLY / REASSEMBLY INSTRUCTIONS
MCUK991001C8 Section 4 Issue 1
Service Manual – 19 – Revision 0
4 DISASSEMBLY / REASSEMBLY INSTRUCTIONS
4.1 General
This section provides disassembly and reassembly procedures for the main components of GD30 and GD50 telephones.
These procedures MUST be performed by qualified service personnel, at an authorized service centre.
The following warnings and precautions MUST be observed during ALL disassembly/reassembly operations:
4.1.1 ESD Handling Precautions
A working area where ESDs may be safely handled 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 a 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 a built in safety resistor of between 5k2 and
1M2 shall be used. The flexible cord must be attached to a dissipative earth point.
Containers – All containers and storage must be of the conductive type.
WARNING
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.
Caution
The equipment described in this manual contains electrostatic sensitive devices (ESDs). Damage can occur to these
devices if the appropriate handling procedure is not adhered to.