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DS120
Schematic
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Schematic
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User Manual [ru]
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User Manual [ru]
59 pgs1.4 Mb0

FLY DS120 Service Manual

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Service Manual
1
Introduction
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
2
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)
3
Chapter 2 Explosive View
A Shell
Keypad
DOME
PCBA
Vibrator
B Shell
Lens
LCD
Receiver
Speaker
Camera
Antenna
Battery Cover
4
Chapter 3 Tools
r
Electric Iron（Figure 1）
Voltage Regulator（Figure 3）
PC, Data Cable(Downloading)（Figure 6）
DL Cable
Multi-meter（Figure 4）
Others（Figure 7）
Hot Air Gun（Figure 2）
Solder wire, soldering paste(Figure5)
Tweezers
Pick
Screw Drive
Wrist grounding strap
Antistatic gloves
5
Chapter 4 Guidance of Disassembly/Assembly
4.1 Disassembly
Remove the battery cover. 1
Remove the back cover by using pick. 3
Stick the protection film onto LCD. 5
Unscrew the six screws. 2
Remove the front cover. 4
Stick protection film onto lens. 6
6
Take out PCBA (using Tweesers) . 7
Remove the LCD (Using Electric Iron). 9
Remove the ESD film. 11
Disassembly completed.
Unmount LCD module. 8
Remove the speaker (Using Electric Iron). 10
Remove the camera(Using Electric Iron). 12
7
4.2 Assembly
Solder the Speaker. 3
Mount the PCBA onto back cover. 5
Paste the ESD film. 2 Solder the camera. 1
Install the antenna. 4
Remove LCD protection film. 6
8
Tighten the screws. 9
Assembly completed.
Mount the front cover. 8 Remove the protection film. 7
Install the battery cover. 10
9
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.
J302
I\O Port
U402RF Chipset AR1216
1
Keypad input interface.
J502 SIM Jack
J503 SIM Jack
X201 Crystal
J301 TFLASH Jack
U705 BT MT6612
Display interface
U502 PA RF7170
U301 Storage
J201 battery connector
U101 CPU MT6252
U203 26M Crystal
10
5.2 Layout
5.2.1 Layout of side A
5.2.2 Layout of side B
11
Chapter 6 System block diagram
12
Chapter 7 Circuit diagram for each unit
路
7.1 CPU & Baseband
Audio processing
Keypad interface
数据传输接
Data transferring
口电
interface
JAVA Control
CAMERA
数据传输控
Data transferring 制端
control
BT
数据传输控
Data transferring 制端
control
13
7.2 Keypad input interface
7.3 32.768 KHz clock crystal circuit
32.768 KHz clock crystal
Clock Signal I/O
14
7.4 Data line of CPU and Flash
7.5 Output of SIM
SIM 2 Clock
SIM 2 Data SIM 1 Clock
SIM 2 Reset
SIM 1 Reset
SIM 1 Data
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7.6 Power output of MT6252 (CPU)
item voltage current
Vcore 1.2v 200ma
Vio 2.8v 100ma
Vadd 2.8v 150ma
Vtcxo 2.8v 20ma
Vrtc 1.2v 200ma
Vmem 2.8v 150ma
Vsim 2.8v 20ma
Vcs 2.8v 200ma
vcs 1.8v 150ma
7.7 Battery connector
电池正极
Positive Voltage
电压输入
Supply
Charging Temperature Detector
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7.8 Bluetooth
g
Brief Introduction of Bluetooth: Bluetooth technology, a short distance wireless communication
technology, can simplify the communication between palmtop computers, notebook computers and mobile phones, can also simplify the communication between these eq uipments and the Internet. The data transfer between modern communication equipments and the Internet can be faster and more efficient and the application of the wireless communication is accelerated. The Bluetooth technology realize the wireless data and sound transfer from one point to several points, the transfer bound is a 10 meters radius sphere to the one point, the transfer bandwidth is 1Mbps, and the communication medium is electroma
Antenna
7.9 Audio Amplifier U201
Audio Start Signal
Audio Signal Input
netic waves from 2.402GHz to 2.480GHz.
Power Supply
3.7V Power Supply
Input of BT’s clock reset
Data Transfer
Receiving/ Transmitting of BT
Audio Signal Output
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7.10 I/O Interface
g
g
Data Transfer
7.11 Power Amplifier
Antenna
Firmware Downloadin
RF7170
Charging Volta
e Input
Frequency Band Selection
Power Supply
RF Signal Inpu t
Receive Signal Output
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7.12 FM Radio Modules
The AR1216 processes the FM broadcasting signal that received from antenna (FM/ANT) ,produces and sends audio signals (FM-INL, FM-INMR) to the audio process module of CPU for decoding, where the electrical signals of audio are made.
7.13 SIM Circuit
SIM 1 Clock
SIM 1 Reset
SIM 2 Clock, Reset
Antenna
32K Clock signal input
SIM 1 Power Supply
SIM 2 Power Supply
2.7V Power Supply
Audio output
Data Communication Port
SIM 1 Data
SIM 2 Data
Chapter 8 Troubleshooting Guide
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Chapter 8 Troubleshooting Guide
r
g
8.1 Cannot Download Firmware
Cannot download
Can power
On?
YES
YES
OK
Check software configuration, cable, power supply, software,
NO
Replace or Re-solder I/O connecto
YES
Check if I/O connector is false weld or dama
ed.
NO
Change or reconfigure
Plug the cable and check if the current is high(normally 30mA）.
NO
Check if CPU has power output and open circuit.
YES
Unplug the cable and check if the chipset is overheated.
NO
YES
NO
Check VCORE、VDD、VADD、 VTCXO、VRTC、VMEM、test 26MHZ、32KHZ Clock signal
Replace U101
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8.2 SIM cannot be recognized
SIM is not recognizable
Change SIM
YES
Are SIM contacts broken?
YES
Is SIM invalid?
NO
Use power regulator to test if the current is normal.
NO
NO
YES
Clean or change SIM
slot.
NO
Problem Solved
CPU MT6252 is possibly false
soldered or damaged.
NO
OK
YES
MT6252 is broken
Change U101 MT6252
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8.3 Cannot Power On
Change battery
Cannot Power On
YES
YES
Try to power on when connect to the power regulator
NO
Check if the current is around 30～40MA
NO
MT6252 is broken
Change U101 MT6252
Check battery
Contacts J201
NO
YES
Re-solder or change J201
NO
Problem Solved
Firmware upgrading
NO
YES
YES
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g
8.4 Receiver No Sound.
Change receiver
Receiver no sound
Check hand free mode (Speaker) is ok
YES
YES
Check if the receiver is broken.
NO
Test receiver by using power supply, if there is sound of scratchin
Test if LS402 with oscillograph when on the call.
Change CPU MT6252
.
YES
NO
NO
NO
Check if LS402 is broken.
NO
Clean or Re-solder
LS402
Change receiver.
YES
NO
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8.5 No Incoming Ring
Cancel mute.
No incoming ring
*#84666*#, Option7, test ringtone
YES
YES
Check if handset is set to mute.
NO
Check if the volume is set to lowest level.
NO
Test the LS401 when ringing is on by using oscillograph.
NO
Change U101 or U401
NO
YES
Remove receiver and test with power supply to see if there is sound.
YES
Change speaker
NO
Turn up the volume
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8.6 Display Problem
Display problem
Check if the LCD is broken or liquid leaked.
NO
Check the LCD contacts.
YES
Change LCD
NO
Check if the pin13 of
J705 has signal and the
connector is normal.
NO
Change or re-solder U101 MT6252
NO
YES
Clean or Re-solder J705 contacts
Problem solved
YES
Firmware upgrading
25
Chapter 9 Firmware Upgrading Guide
9.1 Firmware Upgrading
9.1.1 Install USB driver The maximum downloading speed can be up to 921600bit/s when using USB-Serial cable. The driver needs to be installed before using the USB cable.
Please keep the USB cable unplugged when installing the driver. Plug the USB cable when installing is completed. And check device manager of the PC.
9.1.2 Run “FlashTool_v3.2”
9.1.3 Please select “Options”-“COM port”-Choose the port which is same as the one in “Device Manager”
26
9.1.4 Select “Options”-“Format FAT (DISABLED)…” and please do NOT select “validation”.
9.1.5 Please select “Do Not Format FAT”.
27
9.1.6 Click “Download Agent” and select “MTK-ALLInOne.bin”
9.1.7 Click “Scatter-loading” and select “scatX11-23.txt” file.
Double click
Double click.
28
9.1.8. Click “ROM” and select “X11-23_PCB00_gprs_MT6226_S01. Bin” file. Note: Please use the latest version.
Double click
Double Click
29
9.1.9 Power off the handset, remove the battery, click “Download”, and connect the cable with handset, then insert the battery, press the power on button, the red and blue progress bar shall appear.
.
9.1.10 Downloading is in process.
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9.1.11 Downloading is completed.
9.2 IMEI Writing Guide
How to use IMEI_Writer to write IMEI
General
The IMEI_Writer software should be used in a Windows XP operation system. The pictures in this document help to understanding, and thy may not be exactly the same as showed in your computer.
9.1 write IMEI to the slave phone of MGSM 41B phone to give an example.
9.1.1 Firstly, plug the correct upgrade cable to the computer. This is necessary, or the software will not be run normally.
9.1.2 Double-click the logo in figure 1-1 to run the IMEI Writer in a Windows XP operation system.
Figure 1-1
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For the first time you run IMEI_Writer in the computer, figure 1-2 occurs. Choose the right database file for the slave
phone of MGSM 41B phone referring to figure 1-3.
Figure 1-2
Figure 1-3 Input the IMEI of the slave phone referring to figure 1-4, click “Restart”, after 3 seconds plug the slave phone cable connector to the phone and power on the phone.
Click here to
change the database file
Input the IMEI
here
Figure 1-4
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9.1.3 After several seconds, figure 1-5 occurs to show the slave phone is written to the phone successfully..
Showing
writing IMEI successfully
Figure 1-5
9.2 write the IMEI of the master phone.
If necessary, you can also use IMEI_Writer to write IMEI to the master phone conveniently.
2.1 Change the database file to be for the master phone, referring figure 1-4.
2.2 Input the IMEI of the master phone, click “Restart”, after 3 seconds plug the master phone cable connector to the phone and power on the phone.
2.3 after several seconds figure 1-5 occurs to show the slave phone is written to the phone successfully.
9.3 write the IMEI of another phone
If the right database file has already been chose, click the “restart”, input the IMEI of the phone, click “Restart”, after 3 seconds plug the phone cable connector to the phone and power on the phone. After several seconds, figure 1-5 occurs to show the slave phone is written to the phone successfully.
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Chapter 10 CIT Testing
Input “*#84666*#” when in the standby mode 1、Version: Confirm the firmware version. 3、Echo Loop: Receiver shall produce sound when blowing over the mic. 4、Keypad: Press every button on the handset until the screen is clear. 5、Vibrator：Press “start” then the vibration shall start. 6、Lond SPK: Press “start” the speaker shall work. 7、Ringtone: Press “start” the ringtone shall be played. 8、LED：Press “OK” to test the LED. 9、LCD: Select “Auto Display” LCD shall perform the self-testing. 11、Receiver：Press”start” the receiver shall produce sound. Camera: Menu- Camera, test the capture and shooting, no need to save.
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