FLY E145 Service Manual

T69_Maintenance Instruction

Prepared by : xiaoyu wan Approved by: Date: 2009-11-02

TABLE OF CONTENTS

 No power on  Shut off automatically

 Dead halt  No charge  Quantity of electricity faulty detection  No display  LED NG (on the LCD)  LED NG (on the keyboard)  Key NG  No ring  No receiving voice

Innovating Customer Value

 No sending voice or the voice is small  No vibration  SIM Card inefficacy  Camera inefficacy  Bluetooth inefficacy  TF card inefficacy  Earphone inefficacy  FM inefficacy  G-senser inefficacy

2

Battery CONN

Adapter CONN

TF card

BT area

Camera FPC

Antenna

Earphone CONN

Socket of SIM card

CPU

Flash

RF PA

Transceiver

Audio PA

K/B FPC

FM area

Power supply chip

LCD

Receiver

G_senser

¾No power on

No power on

Check whether the

battery voltage is

higher than 3.4V

Y

Check whether the battery and the key pad of

oxidized or there is

anything else on it

N

Check whether the

connection of K/B &

M/B is OK

N

Take out the LCD and

SPK, Check whether it is

powered on

J404 is

N

Y

Charge the battery

Wipe off the thing

or clean the key pad

reweld the K/B

Cross-testing the

LCD&SPK,

Change the defective

N

A

5

A

C127:2.8V, the capacitor: C127; C128:2.8V, the capacitor: C128: C139:2.8V, the capacitor: C129; C130:2.8V, the capacitor: C130; C131:2.8V, the capacitor: C131; C133:1.5V, the capacitor: C133.

\Check whether

D501,R548(10K) is

broken

N

Connect with the battery,

press “NO” key, check

whether the output voltage

of U

101 is normal

Y

Check whether the

output frequency of

X100 is 32.768K

Y

Check whether the

output voltage of U

pin3 is

1.13V around

605

Y

Change the

FLASH(

U300) of the

main module, check

whether it is OK

Y

Change D501,R548

Replace a earthed

N

capacitor corresponding to

the defective pin, Check

N

Change U101

whether it is OK

N

Change X100,

C100,C101

N

Check whether U604

16 has an voltage

Y

Change U605

of 2.8V around

N

Change U101

N

Change the

CPU(U100)

OK

Innovating Customer Value

7

Innovating Customer Value

8

¾Shut off automatically

Innovating Customer Value

Shut off

automatically

D/L the latest edition,

Check whether it is OK

N

Replace with a

good battery, Check

whether the

primary cell is broken.

N

Check whether the

rubber, used to fix the

battery, is lost or at the

other location

N

Check whether the battery and the key pad of J

oxidized or there is

anything else on them

407 is

Y

Change the battery

Y

Reassemble the

Wipe off the thing

or clean the key pad

OK

rubber

N

C

13

Innovating Customer Value

C

Check whether the

battery connector

void-welded or broken

N

Check whether the

connection of

&K/B FPC is OK,FPC is

void-welded

Y

Check whether there

is any pin of the

connector

( M/B &K/B) broken

N

Check whether X100

output frequency is

32.768K exactly

‘J407’ is

J408

‘J404’

Y

N

Y

N

Re-weld or

change J501

Reassemble the K/B

Or change the FPC

Change J404

ChangeX100,

C100,C101

Y

Refer to the maintenance

method of ‘No power on’

OK

14

Innovating Customer Value

15

¾Dead halt

Innovating Customer Value

Death halt

D/L the latest edition,

Check whether it is OK

N

Replace with a good

battery, Check whether

the primary cell is broken

N

Check whether the problem is resulted

from ‘KEY NG’

N

Check whether the problem is resulted from the LCD itself

Y

Change the battery

reassemble or change

OK

Clean the K/B, the metal dome

Change the LCD

N

D

16

Innovating Customer Value

D

Check whether the

output frequency of

X100 is 32.768 exactly

Y

Check whether the

connection of

&K/B FPC is OK,FPC is

void-welded

Y

Check whether there is

any pin of the connector

‘J404’ ( M/B &K/B)

broken N

Replacing with the

programming FLASH,

check whether it is OK

J404

N

Re-weld or change

X100,C100,C101

N

Y

Reassemble or

change the FPC

Change J404

N

Refer to the servicing

method of ‘No power on’

OK

17

¾No charge

No charge

Replace with a

good battery, Check

whether the

primary cell is broken.

N

Replace with a good

adaptor, Check

whether the primary

adaptor is broken

N

Innovating Customer Value

Y

Change the battery

Change the adaptor

Check whether the

battery connector

is oxidized or is broken

N

Check whether the

connector

void-welded or

broken

N

E

‘J407’

‘J304’ is

Y

Clean or

change J

Re-weld or

change

407

J304

18

E

Plug in, Check whether

it has an voltage of 1V

R

Y

115

114 and

between R

Innovating Customer Value

N

Change R114(24K),

R115(100K)

Check whether there

is anyone broken of

R118A~R118D(100K)

Y

Check whether there

is anyone broken of

Q100,R100

N

Change U101, check

whether it is OK

N

Change the

CPU(U100)

N

Y

Change the defective

Change Q100,

R100(0.39ohm)

OK

19

¾Quantity of electricity faulty detection

Quantity of electricity

faulty detection

Replace with a

good battery, Check

whether the

primary cell is broken.

Innovating Customer Value

Y

N

Change the battery

Check whether there is

anyone broken of

R118D(100K)

N

Change U101, check

whether it is OK

N

Change the CPU

OK

R118A-

Y

Change the battery

20