PBA Repair Guide [GT-S5230] Samsung Electronics

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

1. PBA Diagram GT-S5230 TOP Diagram Appearance

1. PBA Diagram GT-S5230 Bottom Diagram Appearance

2-1. No Power GT-S5230 Trouble shooting C330 = 1.8V C352 = 3V C333 = 1.2V C319 = 3V Input the power (3.8V) Power-on-current >= 100mA Y Y Check UCP200 N N Download S/W Check U300 ※ It’s a general case. It cannot be available on the special case.

2-1. No Power GT-S5230 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.

2-1. No Power GT-S5230 Picture 2-1-3 UCP200 C352 U300 C330 C319 C333 ●

Voltage Div : 1V, Time Div : 1㎳ 2-1. No Power GT-S5230 Scope 2-1-3 C330 C352 Voltage Div : 1V, Time Div : 1㎳ 3V 1.8V

Voltage Div : 1V, Time Div : 1㎳ 2-1. No Power GT-S5230 Scope 2-1-3 C333 C319 Voltage Div : 1V, Time Div : 1㎳ 3V 1.2V

2-2. Lockup / Reset GT-S5230 Trouble shooting Download the latest S/W Download Completed Y Lockup or reset (Same as declared) Y Erase memory Check UCP200 N N Repeat the lockup/reset test Check UME200 ※ It’s a general case. It cannot be available on the special case.

2-2. Lockup / Reset GT-S5230 Erase the memory Picture 2-2-2 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 Picture 2-2-2 UCP200 UME200

2-3. SIM Card Failed GT-S5230 Trouble shooting Check the 6-pins of SIM socket There is durst or damaged N Input the power (3.8V) Pin 1, 2, 4 = 3V Pin 3 = 3V Clock Y N Clean or change SIM socket Check U300 or UCP200 ※ It’s a general case. It cannot be available on the special case.

2-3. SIM Card Failed GT-S5230 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. Picture 2-3-3 1 2 3 ● ● 4 ● ●

Voltage Div : 1V, Time Div : 50㎳ 2-3. SIM Card Failed GT-S5230 Scope 2-3-3 Pin number 1, 2, 4 Pin number 3 Voltage Div : 1V, Time Div : 50㎳ 3V Clock 1.9V Clock 3V 1.9V

2-4. Camera Failed GT-S5230 Trouble shooting Connect a camera Input the power Enter the camera preview There is durst or damaged N Y Check CN300 C302 = 3V C311 = 1.8V Y N N Clean or Change CN300 Check UCP200 Check U302 ※ It’s a general case. It cannot be available on the special case.

2-4. Camera Failed GT-S5230 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

2-4. Camera Failed GT-S5230 Picture 2-4-1, 2-4-3, 2-4-4 UCP200 CN300 3 ● C311 U302

Voltage Div : 1V, Time Div : 1㎳ 2-4. Camera Failed GT-S5230 Scope 2-4-3, 2-4-4 C302 C311 Voltage Div : 1V, Time Div : 1㎳ 3V 1.8V

2-5. No Vibration GT-S5230 Trouble shooting Connect a motor Input the power Vibration on Y R307 = 3.2V C341 = 3.2V N N Check U300 Check U305 ※ It’s a general case. It cannot be available on the special case.

2-5. No Vibration GT-S5230 Connect a motor, input the power (3.8V), vibration on 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

2-5. No Vibration GT-S5230 Picture 2-5-2, 2-5-3 U300 C341 ● U305 R307

Voltage Div : 1V, Time Div : 1㎳ 2-5. No Vibration GT-S5230 Scope 2-5-2, 2-5-3 R307 C341 Voltage Div : 1V, Time Div : 1㎳ 3.2V 3.2V

2-6. Bluetooth Searching Failed GT-S5230 Trouble shooting Input the power Bluetooth on Search devices Y Y L136 = 3V C233 = 26MHz Check UCP200 N N Check U200 Check U300 ※ It’s a general case. It cannot be available on the special case.

2-6. Bluetooth Searching Failed GT-S5230 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.

2-6. Bluetooth Searching Failed GT-S5230 Picture 2-6-2, 2-6-3, 2-6-4 U300 U200 L136 C233 ● ●

2-6. Bluetooth Searching Failed GT-S5230 Scope 2-6-2, 2-6-3 L136 C233 Voltage Div : 1V, Time Div : 1㎳ Voltage Div : 1V, Time Div : 50㎳ 26MHz 3V

2-7. No Charging GT-S5230 Trouble shooting Connect TA to the power supply Input the power (5V) Current = 400 ~ 600mA C310 = 5V N N Check U300 Check IFC100 ※ It’s a general case. It cannot be available on the special case.

2-7. No Charging GT-S5230 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 ※ Check the voltage during charging. - TA can be connected to power supply must be prepared. Picture 2-7-1, 2-7-2 TA Insert to PBA

Voltage Div : 1V, Time Div : 1㎳ 2-7. No Charging GT-S5230 Picture 2-7-4 Scope 2-7-4 C310 Voltage Div : 1V, Time Div : 1㎳ IFC100 U300 5V C310 ●

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 Ground Put a scope