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Презентация на тему Polo maintenance instruction

Содержание

TABLE OF CONTENTS 1 about POLO 2 Distribution of the main board components 2.1 TOP 2.2 BOTTOM 3 Baseband 3.1 System block Diagram 3.2 Power management 3.2.1
POLO Maintenance Instruction TABLE OF CONTENTS 1 about POLO 2 Distribution of 4.4 No vibration 4.5 No charge 4.6 Camera inefficacy 1 .About POLO POLO is based on MTK MT6577 platform 2 Distribution of the mainboard components 2.1 TOP 2.2 BOTTOM 3.1 System block Diagram 3 Baseband 3.2 Power management 3.2.1 power management Block Diagram MT6329 Power List No power onCheck whether the firmware is OK?Check whether thebattery voltage Check whetherC2658 has an outputfrequency of 26M Check U2602Re-weld or changePress power Download failCheck whether the firmware is OK?Check whether the download line Check whetherC2658 has an outputfrequency of 26MCheck U2602Re-weld or changePress power key, No ring whether speaker is broken or pad is oxidizedChanger speakerCheck No receiving voicewhether REC is broken or pad is oxidizedChange RECB3320,B3321,D3320,D3321 Speaker echoWhether MIC is assembled OKRe-assembleCheck whether the firmware is No sending voiceMIC is broken or weakly weldedRe-weld or changeMICB3305,B3306,C3310,C3311 is weakly Sub-board B110,B111 is weakly weldedRe-weldOKRe-weld or changeU1100NYWhether main FPC is broken, or Earphone detect failthe voltage of B3342 is1.9V without earphone line?Re-weld R3344,R3343,R0632,B3342Check C3348,C3349,C3350,C3346, C3347 is weakly welded?OKRe-weld or changeU1100B3340,B3341, B3339, B3338,R3341,R3342, is weakly welded?MIC No vibratingThe moto is assembled OK?Re-assembleWhether the moto is broken No chargingChange battery,is it OK?Change charger,is it OK?Check whether J9411 is broken Camera inefficacyWhether CAM is broken?Change CAMWhether the cam connector is broken E4410,E4411,E4412 is weakly weldedRe-weldOKRe-weld or change U1100C4403,C005,C4406 is weakly weldedRe-weldNNYYY LCD display wrongChange LCD,is it OKOKCheck whether the firmware is OK?Connector LCD backlight inefficacyThe voltage of C4412 is around 31V?The voltage of Power on failCheck whetherC5537 has an outputfrequency of 26MRe-weldThe voltage of OKRe-weld or change U5503NYRe-weld or change U1100OKY Connect fail/bad voiceThe voltage of C5515 is 3.3VRe-weld L7201U5504 is weakly weldedRe-weldCheck R5509,R5515,C5545, R5505,R5506 is weakly weldedYNRe-weldCheck U5503 WIFI inefficacyCheck whether the firmware is OK?okYN4.9 WIFI Inefficacy Check whetherC5537 OKRe-weld or change U5503NYRe-weld or change U1100OKY FM inefficacyCan’t open FMRe-weld U5503,U1100NYCan’t search any channel or too fewCheck whether Key NGR1106,R1107, R1108 is weakly weldedRe-weldCheck assemblyRe-assembleNNYYJ9413,D4404 is broken or weakly KEY LED NGWhether both are NGCheck the NG led and it’s proximity sensor NGWhether the lcd backlight is off when callingRe-assemble,focus the Gsensor NGU5206,R4301 is weakly weldedRe-weld or changeNYRe-weld or change U1100Check whether the SIM card inefficacySIM card holder is weakly welded?Re-weldOKD4425,D4426,D4427, C4425 is weakly weldedCheck TF card inefficacyTcard holder is broken or weakly weldedChange or re-weldCheck whether GPS inefficacyBT&WIF works normally?Follow the bt blockThe voltage of R5514 ANT5500 is weakly welded?Re-weldThe ant is assembled okRe-assembleNNNYRe-weld U11004.16 GPS inefficacy 4.17 TP inefficacy TP inefficacyTP panel is broken?Change itThe voltage of B4430 Thanks！
Слайды презентации

Слайд 2 TABLE OF CONTENTS 1 about POLO 2 Distribution of

TABLE OF CONTENTS 1 about POLO 2 Distribution of the

the main board components 2.1 TOP 2.2 BOTTOM 3

Baseband 3.1 System block Diagram 3.2 Power management 3.2.1 Block Diagram 3.2.2 Power list 4 Reference for maintenance 4.1 No power on 4.2 Download fail 4.3 Audio 4.3.1 No ring 4.3.2 No receiving voice 4.3.3 Speaker echo 4.3.4 No sending voice 4.3.5 Earphone detect fail 4.3.6 Earphone inefficacy

Слайд 3 4.4 No vibration 4.5 No charge 4.6 Camera

4.4 No vibration 4.5 No charge 4.6 Camera inefficacy 4.7 LCD

inefficacy 4.7 LCD 4.7.1 LCD display wrong 4.7.2 LCD backlight

inefficacy 4.8 Bluetooth 4.8.1 power on fail 4.8.2 Connect fail/bad voice 4.9 WIFI inefficacy 4.10 FM inefficacy 4.11 Key NG 4.12 KEY LED NG 4.13 Sensor 4.13.1 proximity sensor NG 4.13.2 Gsensor NG 4.14 SIM card inefficacy 4.15 TF card inefficacy 4.16 GPS inefficacy 4.17 TP inefficacy

Слайд 4 1 .About POLO
POLO is based

1 .About POLO POLO is based on MTK MT6577 platform

on MTK MT6577 platform designed Smartphone. Support all main

functions like WIFI/GPS/BT/FM/CTP and so on.






















Слайд 5 2 Distribution of the mainboard components
2.1 TOP

2 Distribution of the mainboard components 2.1 TOP

Слайд 6 2.2 BOTTOM

2.2 BOTTOM

Слайд 7


3.1 System block Diagram

3.1 System block Diagram 3 Baseband


3 Baseband

Слайд 8 3.2 Power management

3.2.1 power management Block Diagram

3.2 Power management 3.2.1 power management Block Diagram

Слайд 9 MT6329 Power List

MT6329 Power List

Слайд 10 No power on
Check whether the firmware is OK?
Check

No power onCheck whether the firmware is OK?Check whether thebattery voltage

whether the
battery voltage is
higher than 3.5V
OK
Change battery
Check whether the

powerkey or V+key is fixed?
Whether r1130 is weakly welded ?

Reassemble the phone , re-weld R1130

Take out LCD，CAM, Light sensor FPC, Check whether it is OK

Cross test,find the key point

Y

N

N

Y

N

N

Y

Y

4.1 No power on

4 Reference for maintenance

Слайд 11 Check whether
C2658 has an output
frequency of 26M

Check

Check whetherC2658 has an outputfrequency of 26M Check U2602Re-weld or changePress

U2602
Re-weld or change
Press power key, measure
voltage of all key

power

Re-weld or change
U1102 L1102,L1100,L1103

Re-weld or change
U1100

OK

C1186:1.1V, C1184:1.2V, C1103:1.8V, C1117:1.2V, C1103:2.8V,

N

Y

N

Y

Y

Слайд 12 Download fail
Check whether the firmware is OK?
Check whether

Download failCheck whether the firmware is OK?Check whether the download line

the download line is wrong or broken
OK
change the download line
Check

whether J9411 is weakly welded

whether progress bar
Is no response

Y

N

Y

N

Y

N

Check whether the
battery voltage is
higher than 3.5V

Check whether U1100 is weakly welded or broken

Change battery

N

Y

Whether U1100 is weakly welded or broken

Re-weld or change
U1100

N

4.2 Download fail

Слайд 13 Check whether
C2658 has an output
frequency of 26M
Check U2602
Re-weld

Check whetherC2658 has an outputfrequency of 26MCheck U2602Re-weld or changePress power

or change
Press power key, measure
voltage of all key power
Re-weld

or change
U1102 L1102,L1100,L1103

Re-weld or change
U1100

OK

C1186:1.1V, C1184:1.2V, C1103:1.8V, C1117:1.2V, C1103:2.8V,

N

Y

N

Y

Y

Слайд 14 No ring
whether speaker is broken or pad is

No ring whether speaker is broken or pad is oxidizedChanger speakerCheck

oxidized
Changer speaker
Check whether the firmware is OK?
B1102,B1103, C1230,C1231 is wrong welded?
ok
Re-weld
N
N
N
Y
Y
Y
OK
Whether

main FPC is broken, or wrong welded or wrong assembled

Re-assemble or re-weld or change

Y

Sub-board B120,B121, D120,D121C120,C121, C122 is wrong welded

N

4.3.1 No ring

Re-weld or change
U1102

Y

Re-weld

Слайд 15 No receiving voice
whether REC is broken or pad

No receiving voicewhether REC is broken or pad is oxidizedChange RECB3320,B3321,D3320,D3321

is oxidized
Change REC
B3320,B3321,D3320,D3321 is wrong welded
OK
Re-weld
Re-weld or change
U1100
Check whether the

firmware is OK?

ok

Y

N

N

Y

Y

N

4.3.2 No receiving voice

Слайд 16 Speaker echo
Whether MIC is assembled OK
Re-assemble
Check whether the

Speaker echoWhether MIC is assembled OKRe-assembleCheck whether the firmware is OK?OKYYN4.3.3

firmware is OK?
OK
Y
Y
N
4.3.3 Speaker echo
Whether Speaker is assembled OK
Re-assemble
Y
N

Слайд 17 No sending voice
MIC is broken or weakly welded
Re-weld or

No sending voiceMIC is broken or weakly weldedRe-weld or changeMICB3305,B3306,C3310,C3311 is

change
MIC
B3305,B3306,C3310,C3311 is weakly welded
Re-weld
R3310,R3311,R3312,R3313 is weakly welded
Check whether the firmware

is OK?

ok

Re-weld

Y

N

N

N

Y

Y

Y

N

4.3.4 No sending voice

Слайд 18 Sub-board B110,B111 is weakly welded
Re-weld
OK
Re-weld or change
U1100
N
Y
Whether main FPC

Sub-board B110,B111 is weakly weldedRe-weldOKRe-weld or changeU1100NYWhether main FPC is broken,

is broken, or wrong welded or wrong assembled
Re-assemble or re-weld

or change

Y

N

Слайд 19 Earphone detect fail
the voltage of B3342 is1.9V without

Earphone detect failthe voltage of B3342 is1.9V without earphone line?Re-weld R3344,R3343,R0632,B3342Check

earphone line?
Re-weld R3344,R3343,R0632,B3342
Check whether the firmware is OK?
OK
The voltage

of B3342 fall to 0.8V when plugin earphone line

Check the earphone Jack is broken or weakly welded

Change earphone line, is OK?

OK

Y

N

Y

N

N

Y

N

Y

Re-weld or change
U1100

4.3.5 Earphone detect fail

Слайд 20 C3348,C3349,C3350,C3346, C3347 is weakly welded?
OK
Re-weld or change
U1100
B3340,B3341, B3339, B3338,R3341,R3342, is weakly

C3348,C3349,C3350,C3346, C3347 is weakly welded?OKRe-weld or changeU1100B3340,B3341, B3339, B3338,R3341,R3342, is weakly

welded?
MIC no work
Spk no voice
Re-weld
Re-weld
N
N
Y
Y
Earphone inefficacy
Check whether the firmware

is OK?

OK

N

4.3.6 Earphone inefficacy

Слайд 21 No vibrating
The moto is assembled OK?
Re-assemble
Whether the moto

No vibratingThe moto is assembled OK?Re-assembleWhether the moto is broken or

is broken or the pad is oxidized
OK
Change moto
Whether main

FPC is broken, or wrong welded or wrong assembled

Check whether the firmware is OK?

ok

B1301 is weakly welded

Re-welded

N

N

N

N

Y

Y

Y

Y

4.4 No vibrating

OK

Re-weld or change U1102

Y

Слайд 22 No charging
Change battery,is it OK?
Change charger,is it OK?
Check

No chargingChange battery,is it OK?Change charger,is it OK?Check whether J9411 is

whether J9411 is broken or weakly welded
The voltage of R1140

is around 0.53V?

Re-weld B1100,R1139, R1140

OK

Plug in chager,the voltage of B1100 is 5V?

N

N

Y

Y

N

N

Y

Y

OK

U1103,U1104, R1141,R1142 is weakly welded

Re-weld

Y

Re-weld or change U1102

N

4.5 No charging

Слайд 23 Camera inefficacy
Whether CAM is broken?
Change CAM
Whether the cam

Camera inefficacyWhether CAM is broken?Change CAMWhether the cam connector is broken

connector is broken or weakly welded
Change or re-weld
Open the

camera, C4403 is 2.8V C4405 is 1.8V C4406 is 1.5V

Check whether the firmware is OK?

OK

N

N

Y

Y

Y

N

Check whether is capacity is short to ground?re-weld it or check whether R4401 is weakly weld

N

Change or re-weld U1100

4.6 Camera inefficacy

Слайд 24 E4410,E4411,E4412 is weakly welded
Re-weld
OK
Re-weld or change U1100
C4403,C005,C4406 is weakly

E4410,E4411,E4412 is weakly weldedRe-weldOKRe-weld or change U1100C4403,C005,C4406 is weakly weldedRe-weldNNYYY

welded
Re-weld
N
N
Y
Y
Y

Слайд 25 LCD display wrong
Change LCD,is it OK
OK
Check whether the

LCD display wrongChange LCD,is it OKOKCheck whether the firmware is OK?Connector

firmware is OK?
Connector is broken or weakly welded
OK
N
N
Y
Y
Re-weld or

change

Y

E4401-E4403 is weakly welded?

Re-weld or change

Y

N

N

Re-weld or change U1100

4.7.1 LCD display wrong

Слайд 26 LCD backlight inefficacy
The voltage of C4412 is around

LCD backlight inefficacyThe voltage of C4412 is around 31V?The voltage of

31V?
The voltage of R4401 is high
N
Y
Change LCD re-weld connector

or change it

N

Check whether U4400 U1100 is weakly welded

Y

Whether U4400 is hot?

Y

Change U4401 or L4401

N

D4410,R4807,R4402 is weakly welded

Re-weld

Y

4.7.2 LCD backlight inefficacy

Слайд 27 Power on fail
Check whether
C5537 has an output
frequency of

Power on failCheck whetherC5537 has an outputfrequency of 26MRe-weldThe voltage of

26M
Re-weld
The voltage of R5513 is1.7V
Re-weld or change U5503,L5508
Check whether

the firmware is OK?

OK

Check whether other components near BT
Circuit is weakly welded

Re-weld

Y

N

Y

N

N

Y

N

Y

U5501,R5508 is weakly welded

Y

The voltage of R5508 is 2.8V;if no re-weld or change U5503

4.8.1 Power on fail

The voltage of R5513 is 1.7V?

Слайд 28 OK
Re-weld or change U5503
N
Y
Re-weld or change U1100
OK
Y

OKRe-weld or change U5503NYRe-weld or change U1100OKY

Слайд 29 Connect fail/bad voice
The voltage of C5515 is 3.3V
Re-weld

Connect fail/bad voiceThe voltage of C5515 is 3.3VRe-weld L7201U5504 is weakly

L7201
U5504 is weakly welded
Re-weld
Check whether the firmware is OK?
OK
whether

ant is assembled OK?

Re-assemble ant

Y

N

Y

Y

N

Y

N

N

4.8.2 Connect fail/bad voice

Слайд 30 R5509,R5515,C5545, R5505,R5506 is weakly welded
Y
N
Re-weld
Check U5503

R5509,R5515,C5545, R5505,R5506 is weakly weldedYNRe-weldCheck U5503

Слайд 31 WIFI inefficacy
Check whether the firmware is OK?
ok
Y
N
4.9 WIFI

WIFI inefficacyCheck whether the firmware is OK?okYN4.9 WIFI Inefficacy Check whetherC5537

Inefficacy
Check whether
C5537 has an output
frequency of 26M
Re-weld
The voltage

of R5513 is 1.7V?

Re-weld or change U5503,L5508

Check whether other components near WIFI Circuit is weakly welded

Re-weld

N

Y

N

Y

N

Y

U5501,R5508 is weakly welded

Y

The voltage of R5508 is 2.8V;if no re-weld or change U5503

Слайд 32 OK
Re-weld or change U5503
N
Y
Re-weld or change U1100
OK
Y

OKRe-weld or change U5503NYRe-weld or change U1100OKY

Слайд 33 FM inefficacy
Can’t open FM
Re-weld U5503,U1100
N
Y
Can’t search any channel

FM inefficacyCan’t open FMRe-weld U5503,U1100NYCan’t search any channel or too fewCheck

or too few
Check whether L3339,R3306, L5505 is weakly welded
Y
FM no voice
N
N
Y
Re-weld

or change U1100

The voltage of C5538 is 2.8V?

N

N

L5503 is weakly welded

N

Re-weld U5503

Y

Re-weld

4.10 FM inefficacy

C1160,C1161 is weakly welded

N

Re-weld U1100

Y

Re-weld

Слайд 34 Key NG
R1106,R1107, R1108 is weakly welded
Re-weld
Check assembly
Re-assemble
N
N
Y
Y
J9413,D4404 is broken

Key NGR1106,R1107, R1108 is weakly weldedRe-weldCheck assemblyRe-assembleNNYYJ9413,D4404 is broken or weakly

or weakly welded
Re-weld or change
Y
Re-weld or change U1100
N
4.11 Key

NG

Слайд 35 KEY LED NG
Whether both are NG
Check the NG

KEY LED NGWhether both are NGCheck the NG led and it’s

led and it’s resistance
Y
N
Main FPC is broken or weakly

welded,or assembled wrongly

Change,re-assemble or re-weld

N

Y

Re-weld or change U1100

4.12 KEY LED NG

Слайд 36 proximity sensor NG
Whether the lcd backlight is off

proximity sensor NGWhether the lcd backlight is off when callingRe-assemble,focus the

when calling
Re-assemble,focus the rubble
N
Y
The voltage of C4419 is same

as battery voltage

Re-weld

N

N

4.13.1 Proximity sensor NG

Whether the fpc is broken of
Fixed wrongly

Change or re-assemble

Y

J9422 is weakly welded

Re-weld or change

Y

N

N

Re-weld U1100

Слайд 37 Gsensor NG
U5206,R4301 is weakly welded
Re-weld or change
N
Y
Re-weld or

Gsensor NGU5206,R4301 is weakly weldedRe-weld or changeNYRe-weld or change U1100Check whether

change U1100
Check whether the firmware is OK?
OK
Y
N
4.13.2 Gsensor NG

Слайд 38 SIM card inefficacy
SIM card holder is weakly welded?
Re-weld
OK
D4425,D4426,D4427, C4425

SIM card inefficacySIM card holder is weakly welded?Re-weldOKD4425,D4426,D4427, C4425 is weakly

is weakly welded
Check whether the firmware is OK?
ok
SIM holder

is broken

Change it

N

N

Y

Y

Y

N

Re-weld or change U1100

N

Re-weld

Y

N

4.14 SIM card inefficacy

Слайд 39 TF card inefficacy
Tcard holder is broken or weakly welded
Change

TF card inefficacyTcard holder is broken or weakly weldedChange or re-weldCheck

or re-weld
Check whether C4421 is weakly welded
OK
Re-weld
Re-weld or change U1100
N
Y
Y
N
E4421,E4422

is weakly welded

N

Re-weld

Y

4.15 TF card inefficacy

Слайд 40 GPS inefficacy
BT&WIF works normally?
Follow the bt

GPS inefficacyBT&WIF works normally?Follow the bt blockThe voltage of R5514

block
The voltage of R5514 is1.8V?
Re-weld R5514 or U1100
Z5500,R5507,C5525, C5527,L5501,C5529,L5502 is weakly

welded?

N

N

N

N

U5502 is weakly welded?

N

Re-weld U5502

Y

4.16 GPS inefficacy

Re-weld

Y

N

Слайд 41 ANT5500 is weakly welded?
Re-weld
The ant is assembled ok
Re-assemble
N
N
N
Y
Re-weld

ANT5500 is weakly welded?Re-weldThe ant is assembled okRe-assembleNNNYRe-weld U11004.16 GPS inefficacy

U1100
4.16 GPS inefficacy

Слайд 42 4.17 TP inefficacy
TP inefficacy
TP panel is broken?
Change

4.17 TP inefficacy TP inefficacyTP panel is broken?Change itThe voltage of

it
The voltage of B4430 is 2.8V
Re-weld B4430 or U1102
J4909

is broken or weakly welded?

N

N

Y

N

U4404 is broken or weakly welded

N

Change or re-weld U4404

Y

Re-weld or change

Y

N

Re-weld U1100

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