PAP5450DUO service manual презентация

content 1、 Product introduce..………..p3-p4 2、 Disassembly guide ……….p5-p17 3、Structure parts diagram…..p18 4、 Repairing guide …………...p19-p29

Слайд 1PAP5450DUO service manual


Слайд 2content
1、 Product introduce..………..p3-p4

2、 Disassembly guide ……….p5-p17

3、Structure parts diagram…..p18

4、 Repairing guide …………...p19-p29

Слайд 3Product introduce


Слайд 4Product introduce
Model :
Product size:134*67*10.25
Platform:MTK6572,dual-core 1.2GHz
Memory: 4GB+4Gb (Nand&sdram+RAM)
System:Android 4.2
Frequency band:

WCDMA:900/2100,GSM:900/1800MHz
Battery: 1500mAh
charger: Travel charger
USB cable: MICRO 5PIN
earphone: 3.5jack
LCD&TP: 4.5 FWVGA, Capacitance TP
Camera:0.3M and 5.0M CMOS
Support:BT2.1,WIFI,FM。
Support:3D graphics accelerator,accelerator sensor, distance sensor, light feeling sensor。

Слайд 5
Hot gun
1. Tools list
Tweezer /Cross screw driver/ Solder/Tommy bar/hot gun
Disassembly

guide

Слайд 62. Battery caver disassembly
open the battery cover,as the Fig. 1
Fig. 1

Disassembly

guide


Battery cover


Слайд 73. Back caver disassembly
1) Unscrew 12 screws in back cover ,as

the Fig.2;

Fig. 2

Disassembly guide


Слайд 8Fig. 3
2) Disassemble back cover with Tommy bar ,as the Fig.3;

Disassembly

guide



Back cover

SPK


Слайд 94.Main board and front cover disassembly
1)The main components of distribution,as

the fig.4;

Fig.4

Disassembly guide

Main PCBA

LCD con.

Front
CAM con.

Back CAM.

USB con.

Earphoe con.

TP con.

T card con.

SIM con.

Main FPC

Sub PCBA

vibrator

RF cable

Battery con.


Слайд 10 2)remove two screws and open the LCD con.& TP con.

,and remove the
volume key FPC & power key FPC as the fig.5;


Fig.5

Disassembly guide


TPcon.

LCDcon.


Слайд 11 3)open the main board and remove the RF cable

con. And main FPC con..as the FIG.6



Fig.6

Disassembly guide


RF cable con.

Main FPC con.

Main board


Слайд 12 remove the light sensor and camera,as the fig.7;
5. Front

and Back camera & light sensor disassembly

Fig.7

Disassembly guide

Back cam.

Front cam.

Light sensor&holder

Light sensor con.


Слайд 13Fig.9
remove the Speaker camera and receiver,as the FIG.9;

7. Speaker

& receiver disassembly

Disassembly guide


receiver


Слайд 14Fig.10
8. RF cable and Main FPC disassembly
Remove the RF cable and

Main FPC ,as the fig.10

Disassembly guide

RF cable

Main FPC


Слайд 15Fig.11
9. Sub PCBA disassembly
remove the sub PCBA from the ,as

the fig.11;

Disassembly guide

Sub PCBA


vibrator


Слайд 16Fig.12
10.MIC disassembly
Remove the MIC,as the fig.12;
Disassembly guide
MIC con.


Слайд 17Structure parts diagram
3in1 module
(LCD, TP & front cover
Back cover
Battery cover
Main PCBA
sub

PCBA

5M camera

0.3M camera

Main FPC

Light sensor

Sensor holder

receiver

SPK

RF cable


Слайд 18Repairing guide

1. LCD
a. Check if the SW is correct, otherwise to

upgrade the SW;
b. Check the LCD if is ok, otherwise change a new LCD;
c. If that the LCD loose, re-assemble the LCD and test;
d. Checking the LCD connector if is ok, otherwise re-solder it or change a new one;
e. Checking the circuit around the LCD connector.


LCD
connector


Слайд 192. Camera
a. Checking the camera is assemble ok, re-assemble the camera

and test;
b. Using the good camera to do cross test, it can check if the camera is ok;
c. Checking the camera connector if is ok as below picture, otherwise to re-solder or change a new one;
d. Checking the circuit around the camera connector.

Repairing guide

Back Camera connector

Front Camera connector


Слайд 203. TP
a. Checking the SW and upgrade the SW;
b. Checking the

FPC of TP and re-assemble it;
c. Using the good TP to do cross test;
d. Checking the TP connector, otherwise re-solder or change a new one;
e. Checking the circuit around the TP connector.

Repairing guide

TP Connector


Слайд 214.Ring
a. Checking the shrapnel of speaker if is ok;
b. Checking the

resistance of speaker if is ok, otherwise to change a new one;
c. Checking the FPC if is ok;
d. Checking SPK-FPC if connector with sub-board is ok.

Repairing guide


Слайд 225.receiver
a. Checking the shrapnel of receiver if is ok;
b. Checking

the resistance of receiver if is ok, otherwise to change a new one;
c. Checking the connector point on the main board if is ok, as below picture;
c. Checking the receiver circuit if is ok.

Repairing guide


Слайд 23a. Checking the MIC and Vibrator is cold soldering, re-solder it;
b.

Change the MIC and Vibrator;
c. Checking the circuit of MIC and Vibrator;
d. Checking the FPC if connect ok.

6.MIC and Vibrator

Repairing guide

MIC con.


Слайд 24a. Checking the shrapnel of earphone if is ok;
b. Checking the

connector point on the main board if is ok, as below picture;
c. Change earphone connector;
c. Checking the circuit of earphone.

7. Earphone

Repairing guide

earphone


Слайд 25a. Checking the voltage of battery if is 3.8-4.2V and connect

ok;
b. Upgrade the SW;
b. Checking the power on key and circuit around it.;

8.No Power On

Repairing guide

Power On


Слайд 26a. Checking the voltage of battery if is over 3.4V;
b. Checking

the charger and USB cable if is ok;
c. Checking the USB connector and circuit if is ok.

9.No charging

Repairing guide

USB Connector


Слайд 27Checking the connector of T –card and SIM card;
Change the

connector of T –card and SIM card;



10.No SIM card and No memory card

Repairing guide

T-card
connector

SIM
Connector


Слайд 28a. Checking RF line if that is broken;
b. Checking RF

line assemble if is ok;

11.Signal

Repairing guide

RF connector

Sub-board RF connector


Слайд 29End

Q&A

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