Introduction; Objective; General Safety Notice; Use Instruction - Blu Dash 4.5 Service Manual

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1. Introduction

The manual is not a general publication but only edited for experienced technicians. The

main purpose is to provide the basic foundation for the electrical & mechanical

maintenance.

1) Only an experienced technician can use this guide to repair the product while powered on.

Any maintenance by other non-technicians will cause serious damage of the handset.

Neither short circuit nor counter-polarity connection is allowed for any electronic part in the

handset.

2) Be careful of ESD protection during maintenance to avoid the damage of electrostatic

sensitive components on the handset.

3) If disassembling the handset is necessary for repair, please comply with the mechanical

structure disassembling work instruction. Otherwise, disassembling can damaged the

handset.

1) Avoid using handset in conditions following:



Where there is any caustic liquid or gas



Where there is any high-temperature or fire circumstance



Where there is any flammable liquid or gas

2) Do not use handset while driving for your safety;

3) Please comply with corresponding rules in some special occasions (like in the confines

of an operating room or an airplane)

4) Accessory purchasing or changing should comply with model matching;

5) If cleaning the handset surface is needed, please use a cloth dipped in clean water. Do

not use soluble cleanser.

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