TINNO E205 User manual
1
Service Manual
2
Introduction
The purpose of this document is to help service workshop technicians to service products. This service
manual must be used only by authorized service suppliers. The content of it is confidential. Please note
that provides other guidance documents for service suppliers. Follow these regularly and comply with the
given instructions. While every effort has been made to ensure the accuracy of this document, some errors
may exist. Please keep in mind also that this documentation is continuously being updated and modified,
so always watch out for the newest version.
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、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.
Content
Chapter 1 Product Specification...................................................................................................................................................3
Chapter 2 Explosive View............................................................................................................................................................4
Chapter 3 Tools.............................................................................................................................................................................5
Chapter 4 Guidance of Disassembly/Assembly ...........................................................................................................................6
Chapter 5 Pictures of PCBA.......................................................................................................................................................10
Chapter 6 System block diagram................................................................................................................................................12
Chapter 7 Circuit diagram for each unit.....................................................................................................................................13
Chapter 8 Troubleshooting Guide...............................................................................................................................................19
Chapter 9 Firmware Upgrading Guide.......................................................................................................................................26
Chapter 10 CIT Testing ..............................................................................................................................................................34
3
Chapter 1 Product Specification
Specification：
Network: GSM/GPRS 900/1800 or 850/1900MHz
Display: 2.4“TFT QVGA
Blue tooth：Support: V1.2, Don’t Support: Stereo Music (for both SIMs)
Radio：FM radio FM Record to T-Flash
Talking time:567Min＊
Standby time:260H＊
Lithium Battery: Standard（1000mAh）
USB Charging：USB 2.0
＊The actual time shall vary depending on the network situation
Main features and functions
Dual SIM Dual Standby Single Connection
FM Radio
Blue tooth (talk, file transfer)
Multi-Media
Camera：0.3M
USB 2.0 data transfer
T-Flash（Support 8G T Card）
2.4“TFT QVGA
MP3/3GP/MP4/AVI
82g(Handset weight：59g)
4
Chapter 2 Explosive View
AShell Lens
Keypad
LCD
DOME
Receiver
PCBA
Vibrator
Speaker
Camera
B Shell Antenna
Battery
Cover
5
Chapter 3 Tools
Voltage Regulator（Figure 3）
Multi-meter（Figure 4）
Electric Iron（Figure 1）
Hot Air Gun（Figure 2）
Solder wire, soldering paste(Figure5)
PC, Data Cable(Downloading)（Figure 6）
Others（Figure 7）
Pick
Screw
Drive
r
Tweezers
Wrist
grounding
strap
Antistatic
gloves
DL Cable
6
Chapter 4 Guidance of Disassembly/Assembly
4.1 Disassembly
Unscrewthesixscrews. 2
Removethefrontcover. 4
Stick the protection film onto LCD. 5
Remove the back cover by using pick. 3
Stick protection film onto lens. 6
Removethebatterycover. 1
7
Disassembly completed.
Take out PCBA (using Tweesers) . 7 Unmount LCD module. 8
Remove the LCD (Using Electric Iron). 9 Remove the speaker (Using Electric Iron). 10
Remove the camera(Using Electric Iron). 12
RemovetheESDfilm. 11
8
4.2 Assembly
Remove LCD protection film. 6
Mount the PCBA onto back cover. 5
Installtheantenna. 4
PastetheESDfilm. 2Solderthecamera. 1
SoldertheSpeaker. 3
9
Assembly completed.
Mountthefrontcover. 8Removetheprotectionfilm. 7
Tightenthescrews. 9 Installthebatterycover. 10
10
Chapter 5 Pictures of PCBA
5.1 Pictures
5.1.1 Instruction & location of main components on side A.
5.1.2 Instruction & location of main components on side B.
1
U101 CPU
MT6252
U502 PA
RF7170
Keypad input interface.
U301
Storage
J302
I\O Port
U402RF
Chipset AR1216
J201 battery
connector
U203 26M
Crystal
U705 BT
MT6612
X201
Crystal
J503 SIM
Jack
J502 SIM
Jack
Display interface
J301
TFLASH
Jack
Table of contents
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