Samsung gt s7562 Samsung Galaxy S Duos S7562 GSM850/900 Tx not working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 GSM850/900 Tx network  not working

Samsung Galaxy S Duos S7562 GSM850/900 Tx network not working Step by Step Solution 

Step 1 

Continuous TX ON

CONTINOUS TX ON

 CONDITION
TX POWER DAC:14500 CODE
APPLIED
GSM850 CH : 190
GSM900 CH : 62
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm

ATT. : 20dB

Step 2

Check Output power of RFS100
≥ 31.5 dBm ?

Check Main ant. contact & L131,
L103,C122, L107

Step 3

Check Output power at
R101, C169 ≥ 11dBm ?

Check the Ant.
switching diagram of U100
TP_ANT_SEL

Check GPIO control (UCP300)

Resolder or Change U100

Step 4

U100 normally is operated

Change U100

Step 5 

Check UCP300

Unofficial support site for this Phone By 

Welcome Zone Haldwani

HOME
Search Tags
Samsung Galaxy GT S  Duos S7562 GSM850/900 Tx not working  Solution
Samsung Galaxy GT S Duos S7562GSM850/900 Tx Not network Solution
Samsung Galaxy GT S Duos S7562 GSM850/900 Tx power solution between two bands 

Android App For This Site
Download

Samsung Usb Drivers
Samsung Android Usb Driver Download

Facebook Page
Do You Want More Update Click Here And Like This Page

Read More

Samsung gt s7562 Samsung Galaxy S Duos S7562 DCS Rx not Working solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 DCS Rx network
 not  Working solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 DCS Rx network
 not Working solution Step By Step

Step 1

Continuous Rx ON
Channel : 698 CH
Cell power : -60dBm

Step 2

U100 PIN30 ≥ -65dBm?
(L141 using spectrum analyzer)

Resolder L141 or RFS100
Check RFcable

Step 3

U100 PIN23, L119 ≥ -68dBm?

Check the U100`s
Ant. selection diagram

Resolder L119
or Change U100

Check Main chip(UCP300)

Step 4

Check Main chip(UCP300)

Resolder C121, C164, L120
or Change F103

Step 5

Change U100

Unofficial Support Site By Welcome Zone haldwani

HOME
Search Tags
Samsung Galaxy GT S  Duos S7562  DCS Rx Solution
Samsung Galaxy GT S Duos S7562   DCS Rx Not Working Solution
Samsung Galaxy GT S Duos S7562  DCS Rx network Not receive solution

Android App For This Site
Download

Samsung Usb Drivers
Samsung Android Usb Driver Download

Facebook Page

Do You Want More Update Click Here And Like This Page

Read More

Samsung gt s7562 Samsung Galaxy S Duos S7562 Receiver not Working solution

Samsung gt s7562 Samsung Galaxy S Duos        S7562 Receiver not Working solution 

Samsung gt s7562 Receiver not working solution Step by Step 

Step 1 

Operate Receiver


Step 2 

Check Receiver
Connector
HDC500

Reconnect HDC500


Step 3 

Check VR500,
VR501,R500,
C500,C502

Resolder or Replace
VR500,VR501,R500,C500,C502

Step 4 

Receiver break
down?

Receiver break
down?

Step 5 

Check
UCP300

Resolder or Replace
UCP300

Step 6 

Change main PBA


HOME
Search Tags
Samsung Galaxy GT S  Duos S7562 Receiver Solution
Samsung Galaxy GT S Duos S7562 Receiver Not Working Solution
Samsung Galaxy GT S Duos S7562 No incoming Audio solution

Android App For This Site
Download

Samsung Usb Drivers
Samsung Android Usb Driver Download

Facebook Page
Do You Want More Update Click Here And Like This Page

Read More

Samsung gt s7562 Samsung Galaxy S Duos S7562 Key Not Working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Key Not Working Solution Schematic, Diagram,Circuit 

Samsung gt s7562 Samsung Galaxy S Duos S7562 Key Not Working Solution Step By Step

Step1

Power KEY

Press Power Key

Step 2

Check the P/K
Soldering State
It is OK ?

Resoldering the P/K FPCB

Step 3

Check
R714

Resolder or Replace
R714

Step 4

Re-check the P/K
FPCB STATE
It is OK ?

Change P/K FPCB

Step 5

Check
ON_SW

Resolder or Replace
UCP300

Step  6

Change main PBA

HOME
Search Tags
Samsung Galaxy GT S  Duos S7562 Key Solution
Samsung Galaxy GT S Duos S7562 Key Not Working 
Samsung Galaxy GT S Duos S7562 No Key Result Solution

Android App For This Site
Download

Samsung Usb Drivers
Samsung Android Usb Driver Download

Facebook Page
Do You Want More Update Click Here And Like This Page

Read More

Samsung gt s7562 Samsung Galaxy S Duos S7562 MIC not Working Solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 Schematic, Diagram,Circuit 

Samsung gt s7562 MIC not working Solution      Step by Step 

Unofficial support site for this Phone By Welcome Zone Haldwani

• When MIC not Working  

Step 1 

Operate MIC

Step 2

Pollute
MIC Hole?

Clean up
MIC hole

Step 3

Signal on in
C522, C525,
C526?

Resoldering
C522, C525, C52

Step 4 

MIC
break down

Resolder or Replace
MIC

Step 5 

Signal on in
C519, C520 ?

Change UCP300

Step 6

Check Voltage
of L502 Voltage
is 1.8V ?

Step 7

Change main PBA

HOME
Search Tags
Samsung Galaxy GT S  Duos S7562 MIC Solution
Samsung Galaxy GT S Duos S7562 MIC Not Working Solution
Samsung Galaxy GT S Duos S7562 MIC is not working solution

Android App For This Site
Download

Samsung Usb Drivers
Samsung Android Usb Driver Download

Facebook Page
Do You Want More Update Click Here And Like This Page

Read More

Samsung GT S7562 Galaxy S Duos Audio Not Working Solution

Samsung GT-S7562 Galaxy S Duos Audio Not Working

Solution Schematic, Diagram,Circuit 

Samsung GT-S7562 Galaxy S Duos Audio Not Working

Solution Step By Step

Step 1

Operate speaker

Step 2

Check Speaker

Connector
HDC501

Reconnect connector

Step 3

Signal on in
SPK_OUT_P
& SPK_OUT_N?

Resolder
C527,C508
VR503,VR502
SPK ASSY

Step 4

Signal on in
C406,C407 ?

Resolder
C406,C407
Replace PM400

Resolder or
Replace UCP300

Step 5

Speaker break
down?

Change Speaker

Step 6 

Change main PBA

unofficial support site by welcome zone Haldwani

HOME
Search Tags
Samsung Galaxy GT  S7562 Duos Audio Working
Samsung GalaxyGT  S7562 Duos  No Audio Working
Samsung GalaxyGT  S7562 Duos  No Voice Working

Android App For This Site
Download

Samsung Usb Drivers
Samsung Android Usb Driver Download

Facebook Page
Do You Want More Update Click Here And Like This Page

Read More

Samsung gt s7562 Samsung Galaxy S Duos S7562 FM Radio not working solution

Samsung gt s7562 Samsung Galaxy S Duos S7562 FM Radio not waorking solution Schematic , Diagram , Circuit 

Samsung gt s7562 FM Radio not working solution Step by step 

Radio does not work 

Step 1

Check earphone.
Earphone OK?

change earphone

Step 2

HDC501 is conne
correctly?.

Check HDC501
or Reconnect earjack connector

Step 3

Soldering is ok? L501,
L500, C509.

Step 4

Resolder L501, L500, C509

Step 5 

Soldering is ok? C209,
C219

Resolder C209, C219

Step 6

Check voltage of R210 =
about 1.8V?

Check PM400

Step 7

Change U201

Unofficial support site for this Phone By 

Welcome Zone Haldwani

HOME
Search Tags
Samsung Galaxy GT S  Duos S7562  FM Radio not working  Solution
Samsung Galaxy GT S Duos S7562  FM Radio sound  Not Working Solution
Samsung Galaxy GT S Duos S7562  FM Radio not response solution

Android App For This Site
Download

Samsung Usb Drivers
Samsung Android Usb Driver Download

Facebook Page

Do You Want More Update Click Here And Like This Page

Read More