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CAUTIONS
Please refer to the phone’s user’s guide for instructions relating to operation, care, and maintenance, which
include important safety information.
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.
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
Electrostatic discharge can easily damage the sensitive components of electronic products. Therefore, every
service supplier must observe the precautions which mentioned above.
CONTENTS
Content
1. Brief Introduction….……………………………………………………………………………….….3
2. Exploded View………………………………………………………………………………………….4
3. Tools……………………………………………………………………………………………………..5
4. Assemble & Dissemble
Dissembly..................…………………………………………………………………………...6～9
Assembly………………………………………………………………………………………....10～13
5. Picture of main board
A&B side of PCBA .…………….…………………………………………………….…………..14
A&B of PCBA Layout………….….………….…………………………….………………….…....15
6. System Block Chart…………………………………………………………………………………...16
7. Unit Circuit Map ..…......................................................................................................... 17～23
8. Trouble Shooting Guide …..…………………………………………………………………….24～40
9. Upgrading ……………………………………………………………………………………….. 41～46
10. CIT testing…………………………………………………………………………………………….47
