Samsung Electronics

PBA Repair Guide[GT-S5230]

PBA Repair Guide[GT-S5230]

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Contents

1. PBA Diagram

2. Trouble Shooting

2-1. No Power

2-2. Lockup / Reset

2-3. SIM Card Failed

2-4. Camera Failed

2-5. No Vibration

2-6. Bluetooth Searching Failed

2-7. No Charging

3. Appendix

3-1. How to check the voltage and frequency

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1. PBA Diagram

TOP

Diagram Appearance

GT-S5230

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1. PBA Diagram

Bottom

Diagram Appearance

GT-S5230

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2-1. No Power

Trouble shooting

Power-on-current>= 100mA

Power-on-current>= 100mA

C330 = 1.8V C352 = 3V

C333 = 1.2VC319 = 3V

C330 = 1.8V C352 = 3V

C333 = 1.2VC319 = 3V

Input the power(3.8V)

Input the power(3.8V)

Download S/WDownload S/W Check U300Check U300

※ It’s a general case. It cannot be available on the special case.

Check UCP200Check UCP200

GT-S5230

YY

NN

YY

NN

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2-1. No Power

1. Input the power 3.8V

2. Check the power-on-current >= 100mA

- If not : Download software

3. Check the voltage

1) C330 = 1.8V

2) C352 = 3V

3) C333 = 1.2V

4) C319 = 3V

- If not : Check the U300 (crack, open, short, etc)

4. If there is no problem from 1 to 3, check the UCP200.

GT-S5230

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2-1. No Power GT-S5230

U300U300

C330

C330

C333

C333

C319

C319

C352

C352

UCP200UCP200

Picture 2-1-3Picture 2-1-3

●●

●●●● ●●

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2-1. No Power GT-S5230

C330 C352

Voltage Div : 1V, Time Div : 1 ㎳ Voltage Div : 1V, Time Div : 1 ㎳

Scope 2-1-3Scope 2-1-3

1.8V1.8V

3V3V

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2-1. No Power GT-S5230

C333 C319

Voltage Div : 1V, Time Div : 1 ㎳ Voltage Div : 1V, Time Div : 1 ㎳

Scope 2-1-3Scope 2-1-3

3V3V

1.2V1.2V

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2-2. Lockup / Reset

Trouble shooting

DownloadCompletedDownloadCompleted

Lockup or reset(Same as declared)

Lockup or reset(Same as declared) Check UCP200Check UCP200Erase memoryErase memory

Check UME200Check UME200 Repeat thelockup/reset test

Repeat thelockup/reset test

※ It’s a general case. It cannot be available on the special case.

Downloadthe latest S/W

Downloadthe latest S/W

GT-S5230

YY

NN

YY

NN

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2-2. Lockup / Reset

1. Erase the memory

2. Download the latest software

- If download is not completed

: Check the UME200

(crack, open, short, etc)

- If download is completed

but it still has the same defect

: Check the UCP200 (crack, open, short, etc)

- If download is completed and you cannot find the same defect

: Repeat the lockup/reset test declared originally

GT-S5230

Picture 2-2-2Picture 2-2-2

UCP200UCP200

UME200UME200

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2-3. SIM Card Failed

Trouble shooting

Pin 1, 2, 4 = 3VPin 3 = 3V ClockPin 1, 2, 4 = 3VPin 3 = 3V Clock

Check the 6-pinsof SIM socket

Check the 6-pinsof SIM socket

Clean or changeSIM socket

Clean or changeSIM socket

Check U300or UCP200

Check U300or UCP200

※ It’s a general case. It cannot be available on the special case.

There is durstor damaged

There is durstor damaged

GT-S5230

NN

Input the power(3.8V)

Input the power(3.8V)

YY

NN

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2-3. SIM Card Failed

1. Check the 6-pins of SIM socket

- If there is a durst : Clean the pins

- If it is damaged : Change the SIM socket

2. Input the power 3.8V

3. Check the voltage

1) Pin number 1, 2, 4 = 3V

2) Pin number 3 = 3V Clock

- If not : Check the U300 or UCP200

(crack, open, short, etc)

※ Check the voltage when you input the power on the PBA.

GT-S5230

●●●●●●●●

123

12344

Picture 2-3-3Picture 2-3-3

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2-3. SIM Card Failed GT-S5230

Pin number 1, 2, 4 Pin number 3

Voltage Div : 1V, Time Div : 50 ㎳ Voltage Div : 1V, Time Div : 50 ㎳

Scope 2-3-3Scope 2-3-3

3V3V

1.9V1.9V

3V Clock3V Clock

1.9V Clock1.9V Clock

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2-4. Camera Failed

Trouble shooting

※ It’s a general case. It cannot be available on the special case.

GT-S5230

Clean or ChangeCN300

Clean or ChangeCN300

There is durstor damaged

There is durstor damaged C302 = 3VC302 = 3V

Check UCP200Check UCP200

NN

Check CN300Check CN300

Connect a cameraInput the power

Enter thecamera preview

Connect a cameraInput the power

Enter thecamera preview

C311 = 1.8VC311 = 1.8V

Check U302Check U302

NN

YY

YY

NN

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2-4. Camera Failed

1. Check the CN300

- If there is a durst or damaged : Clean or changed the CN300

2. Connect a camera, input the power 3.8V, Enter the camera

preview

3. Check the voltage U302 Pin number 3 = 3V

- If not : Check the UCP200 (crack, open, short, etc)

4. Check the voltage C311 = 1.8V

- If not : Check the U302 (crack, open, short, etc)

※ Check the voltage during camera entering mode.

- LCD, TSP and camera must be connected to PBA.

- Input the power and press key number *#0*# → 7

GT-S5230

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2-4. Camera Failed GT-S5230

Picture 2-4-1, 2-4-3, 2-4-4Picture 2-4-1, 2-4-3, 2-4-4

UCP200UCP200

CN300CN300

C311C311

U302U302

33

●●

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2-4. Camera Failed GT-S5230

C302 C311

Voltage Div : 1V, Time Div : 1 ㎳ Voltage Div : 1V, Time Div : 1 ㎳

Scope 2-4-3, 2-4-4Scope 2-4-3, 2-4-4

1.8V1.8V

3V3V

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2-5. No Vibration

Trouble shooting

※ It’s a general case. It cannot be available on the special case.

GT-S5230

C341 = 3.2VC341 = 3.2V

Check U305Check U305

R307 = 3.2VR307 = 3.2V

Check U300Check U300

YY

NN NN

Connect a motorInput the power

Vibration on

Connect a motorInput the power

Vibration on

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2-5. No Vibration

1. Connect a motor, input the power (3.8V), vibration on

2. Check the voltage R307 = 3.2V

- If not : Check the U300 (crack, open, short, etc)

3. Check the voltage C341 = 3.2V

- If not : Check the U305 (crack, open, short, etc)

※ Check the voltage during vibrating.

- LCD, TSP and vibrator must be connected to PBA.

- Input the power and press key number *#0*# → 5

GT-S5230

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2-5. No Vibration GT-S5230

Picture 2-5-2, 2-5-3Picture 2-5-2, 2-5-3

U305U305

R307R307

C341C341U300U300

●●

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2-5. No Vibration GT-S5230

R307 C341

Voltage Div : 1V, Time Div : 1 ㎳ Voltage Div : 1V, Time Div : 1 ㎳

Scope 2-5-2, 2-5-3Scope 2-5-2, 2-5-3

3.2V3.2V 3.2V3.2V

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2-6. Bluetooth Searching Failed

Trouble shooting

※ It’s a general case. It cannot be available on the special case.

GT-S5230

L136 = 3VL136 = 3V C233 = 26MHzC233 = 26MHz

Check U200Check U200 Check U300Check U300

Check UCP200Check UCP200YY

NN

YY

NN

Input the powerBluetooth on

Search devices

Input the powerBluetooth on

Search devices

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2-6. Bluetooth Searching Failed1. Input the power (3.8V), Bluetooth on, Search devices

2. Check the Voltage L136 = 3V

- If not : Check the U300 (crack, open, short, etc)

3. Check the C233 = 26MHz

- If not : Check the U200 (crack, open, short, etc)

4. If there is no problem from 1 to 3, Check the UCP200.

(crack, open, short, etc)

※ Check the voltage during searching the devices.

- BT Ant, LCD and TSP must be connected to PBA.

- Insert a SIM card and input the power.

- Activate on the bluetooth and search devices.

GT-S5230

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2-6. Bluetooth Searching Failed GT-S5230

Picture 2-6-2, 2-6-3, 2-6-4Picture 2-6-2, 2-6-3, 2-6-4

●●

U200U200 L136L136

●●C233C233

U300U300

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2-6. Bluetooth Searching Failed GT-S5230

L136 C233

Voltage Div : 1V, Time Div : 1 ㎳ Voltage Div : 1V, Time Div : 50 ㎳

Scope 2-6-2, 2-6-3Scope 2-6-2, 2-6-3

3V3V

26MHz26MHz

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2-7. No Charging

Trouble shooting

※ It’s a general case. It cannot be available on the special case.

GT-S5230

Connect TAto the power supply

Connect TAto the power supply Current = 400 ~ 600mACurrent = 400 ~ 600mA

Check U300Check U300

NN

Input the power(5V)

Input the power(5V) C310 = 5VC310 = 5V

Check IFC100Check IFC100

NN

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2-7. No Charging

1. Connect TA to power supply and input the 5V.

2. Insert a TA to PBA

3. Check the current = 400 ~ 600mA

- If not : Check the U300

(crack, open, short, etc)

4. Check the voltage C310 = 5V

- If not : Check the IFC100

(crack, open, short, etc)

※ Check the voltage during charging.

- TA can be connected to power supply must be prepared.

GT-S5230

TATA

Picture 2-7-1, 2-7-2Picture 2-7-1, 2-7-2

Insert to PBAInsert to PBA

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2-7. No Charging GT-S5230

Picture 2-7-4Picture 2-7-4

C310

Voltage Div : 1V, Time Div : 1 ㎳

Scope 2-7-4Scope 2-7-4

U300U300

IFC100IFC100

●●

C310C3105V5V

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3-1. How to check the voltage and frequency

Equipment : Oscilloscope (Bandwidth : more than 500MHz)

PBA condition : Power on by using power supply

Ground the scope

Put a scope to the point you want to check

Input the power

Input the power

Ground

Ground

Put a scopePut a scope