Micromax A111 User manual

A111
Level 2 service manual

2
content
1、Product introduce..………..p3-p4
2、Disassembly guide ……….p5-p19
3、Structure parts diagram…..p20
4、Repairing guide …………...p21-p31

3
Product introduce

4
Product introduce
Model ：
Product size：147*77.2*9.9
Platform：Qualcomm MSM8225Q，Quad-Core 1.2GHz
Memory：4GB+512MB (Nand&sdram+RAM）
System：Android 4.1
Frequency band: WCDMA：2100MHz，GSM：900/1800MHz
Battery：2100mAh
charger: Travel charger
USB cable: MICRO 5PIN
earphone：3.5jack
LCD&TP：5.3 FWVGA TN, resolution:960*540，Capacitance TP（Glove
touch）， multi-point touch（5 point）
Camera：1.2M and 8.0M CMOS
Support：GPS，BT2.1，WIFI，FM。
Support：3D graphics accelerator，accelerator sensor, distance sensor, light
feeling sensor。

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

6
2. Battery caver disassembly
open the battery cover，as the Fig. 1
Fig. 1
Disassembly guide
Battery
cover

7
3. Back caver disassembly
1）Unscrew 7 screws in back cover ，as the Fig.2；
Fig. 2
Disassembly guide

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

9
4.Main board and front cover disassembly
1）The main components of distribution，as the fig.4；
Fig.4
Disassembly guide
800M
CAM.
USB con.
Earphoe
con.
Main
PCBA
TP con. LCD con. SIM con.
T card
con. Battery
con.
RF cable
Main FPC
Sub PCBA
vibrator
Light
Sensor
con.
Speaker
Support
for GSM
antenna

2）remove two screws and open the LCD con.& TP con. ，as the fig.5；
10
Fig.5
Disassembly guide
LCDcon.
TPcon.

3）remove the volume key FPC & power key FPC, as the FIG. 6
11
Fig.6
Disassembly guide
Volume key
FPC
Power key
FPC

4）open the main board and remove the RF cable con. And main FPC
con..as the FIG.7
12
Fig.7
Disassembly guide
RF cable con. Main FPC con.

remove the light sensor and 1.2M camera and 8M camera ，as the fig.8；
13
5. 3M camera & light sensor disassembly
Fig.8
Disassembly guide
Light sensor con.
Support For
Light sensor
Light sensor FPC
1.2M cam.

14
Fig.9
6.Power key FPC & volume key FPC disassembly
remove the power key FPC and volume key FPC with the iron，as the fig.9；
Disassembly guide
Power
key FPC Volume
key FPC

15
Fig.10
remove the receiver and speaker，as the FIG.10；
7. receiver and speaker disassembly
Disassembly guide
Speaker receiver

16
Fig.12
8. Sub PCBA disassembly
remove two screws and the sub PCBA and Support for GSM antenna
from the ，as the fig.12；
Disassembly guide
Sub PCBA
vibrator

17
Fig.11
9. RF cable 、Main FPC disassembly
Remove the RF cable and main FPC ，as the fig.11
Disassembly guide
RF cable
con.
main FPC
con.
main FPC
RF cable

18
Fig.13
10.MIC& vibrator disassembly
Remove MIC，as the fig.13；
Disassembly guide
MIC CON.
MIC

19
Structure parts diagram
3in1 module
(LCD, TP & front
cover
Back
cover Battery
cover
Main FPC
RF cable
Main
PCBA Sub
PCBA
1.2M
camera
8M
camera SPK
Light
sensor
receiver
Sensor
holder
Support
for GSM
antenna
Volume
key FPC
Power
Key FPC
Power Key
Volume
Key

20
Repairing 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