Micromax Ninja A91 User manual

1
A91
L1 & L2 service manual

2
content
1、Product introduce..………..p3-p4
2、Disassembly guide ……….p5-p19
3、Structure parts diagram…..p20-p21
4、Repairing guide …………...p22-p32

3
Product introduce

4
Product introduce
Model ：
Product size：130×66×10mm
Platform：MTK 6577 ，dual-core 1.0GHz
Memory：4GB+512MB (Nand&sdram+RAM）
System：Android 4.0
Frequency band:dual-SIM WCDMA：2100MHz，GSM900/1800/1900 MHZ
Battery：1800mAh
charger: Travel charger
USB cable: MICRO 5PIN
earphone：3.5jack
LCD&TP：4.5FWVGA,TN, resolution:480*854，Capacitance TP multi-point
touch（2 point）
Camera：0.3M and 5.0M CMOS
Support：GPS，BT3.0，WIFI，FM。
Support：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 10 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
SPK

9
4.Main board and front cover disassembly
1）The main components of distribution，as the fig.4；
Fig.4
Disassembly guide
Sub PCBARF cable
SIM con.
LCD con.
TP con.
Earphone
con.
USB con.
5.0M
CAM.
Main
PCBA T card
con. Battery con. Main FPC vibrator

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