LOGO EV730, Руководство по обслуживанию, Страница: 2 / 44

2
CAUTIONS
1
、
Please read this service manual carefully and make sure all elements of anti-static are in place before the
repair work is carried out.
2
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Servicing and alignment MUST be undertaken by qualified personnel only.
3
、
Please use specified tools and equipments for servicing, in which the parameters need to be calibrated with
specified criteria.
WARNING
：
This document can only be used internally by Tinno or Tinno’s business partners, without the approval
of Tinno’s management team any copying or distribution to third party are not allowed. Without the approval of
Tinno, publishing, distribution, copy, save or transfer of this or part of this document are not allowed. Tinno reserves
the right of modifying or updating for this document without notification and Tinno has the final power of
interpretation.
Content
1. Brief Introduction….……………………………………………………………………………………….3
2. Exploded View…………………………………………………………………………………………….4
3. Tools……………………………………………………………………………………………………….5
4. Assemble & Dissemble
Dissembly..................………………………………………………………………………………...6
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8
Assembly……………………………………………………………………………………………..9
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11
5. Picture of mainboard
A&B side of PCBA….…………….……………………………………………………...……………..12
A&B of PCBA Layout………….
….………….…………………………….…………………………..13
6. System Block Chart………………………………………………………………………………………...14
7. Unit Circuit Map………………………………………………………………………………..….......16
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21
8. Trouble Shooting Guide……..………………………………………………………………………....22
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27
9. Upgrading & IMEI writing……………………………………………………………….......……...29
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36
10. CIT testing………………………………………………………………………………………… ……...37