Home
Micromax
Cell Phone
A27
Micromax A27 User Manual
4
of 1
of 1 rating
23 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
15
3.8 Keyp
ad fault
Check : DOME is pasted and
keymat is assembled correctly
Keypad doesn
’
t work
correctly
OK
Paste the DOME or
assemble keymat again
Yes
Is there any dirty on keypad
surface?
No
Yes
Clean keypad surface and
test
No
Replace new mainboard
No
Is sidekey soldered well?
No short circuit
Yes
Solder or replace sidekey
14
16
Table of Contents
Default Chapter
2
Table of Contents
2
1 Circuit Diagram Instruction
3
Main Board Explored View
3
Detailed Description of Circuit Chart
4
RF Circuit
4
Base Band Circuit
5
Function Circuit
5
2 Fault Maintenance
6
3 Trouble Shooting and Flow Chart
8
Unable to Power on the Handset
8
No Ring Tone
9
LCD Display Fault
10
Charging Fault
11
Camera Fault
12
Fail to Identify SIM Card
13
MIC Fault
14
Keypad Fault
15
Receiver Fault
16
Vibrate Fault
17
FM Fault
18
Bluetooth Fault
19
No Signal
20
Failure to Identify T-Flash Card
21
Earphone Fault
22
Unable to Use USB
23
4
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the Micromax A27 and is the answer not in the manual?
Ask a question
Micromax A27 Specifications
General
Brand
Micromax
Model
A27
Category
Cell Phone
Language
English
Related product manuals
Micromax A56
44 pages
Micromax A106
32 pages
Micromax A104
12 pages
Micromax Q427+
35 pages
Micromax E313
19 pages
Micromax X512
18 pages
Micromax Canvas 2
23 pages
Micromax Bolt
36 pages
Micromax Q55 Bling
64 pages
Micromax X245
13 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
