Lenovo A328 Service Manual page 70

LENOVO
subject to interference.
Before making any test connections, Make sure you have switched off all
equipment.
Cautions
Servicing and alignment must be undertaken by qualified personnel only.
Ensure all work is carried out at an anti-static workstation and that an
anti-static wrist strap is worn.
Ensure solder, wire, or foreign matter does not enter the telephone as
damage may result.
Use only approved components as specified in the parts list.
Ensure all components, modules, screws and insulators are correctly
re-fitted after servicing and alignment.
Ensure all cables and wires are repositioned correctly.
ESD protection
Any product of which the covers are removed must be handled with ESD
protection. The SIM card can be replaced without ESD protection if the
product is otherwise ready for use.
To replace the covers ESD protection must be applied.
All electronic parts of the product are susceptible to ESD. Resistors, too,
can be damaged by static electricity discharge.
All ESD sensitive parts must be packed in metallized protective bags
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