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Samsung Electronics PBA Repair Guide [SGH-I900]. 2/37 Contents 1. PBA Diagram 2. Trouble Shooting 2-1. No Power 2-2. Lockup / Reset 2-3. SIM Card Failed.

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Presentation on theme: "Samsung Electronics PBA Repair Guide [SGH-I900]. 2/37 Contents 1. PBA Diagram 2. Trouble Shooting 2-1. No Power 2-2. Lockup / Reset 2-3. SIM Card Failed."— Presentation transcript:

1 Samsung Electronics PBA Repair Guide [SGH-I900]

2 2/37 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

3 3/37 1. PBA Diagram TOP DiagramAppearance SGH-I900

4 4/37 1. PBA Diagram Bottom DiagramAppearance SGH-I900

5 5/ No Power (PDA) Trouble shooting Power-on-current >= 100mA U304 P1 = 4V C668 = 3V C665, C674 = 1.8V C667, C677 = 2.6V Input the power (3.8V) Download S/W (PDA) Check U304Check U605 Its a general case. It cannot be available on the special case. Check UCP600 Y N Y N Y N SGH-I900

6 6/ No Power (PDA) Input the power 3.8V 2. Check the power-on-current >= 100mA - If not : Download PDA software (refer to 2-2. Lockup/Reset) 3. Check the voltage U304 Pin number 1 = 4V - If not : Check the U304 (crack, open, short, etc) 4. Check the Voltage 1) C668 = 3V 2) C665, C674 = 1.8V 3) C667, C677 = 2.6V - If not : Check the U605 (crack, open, short, etc) 5. There is no problem from 1 to 4, check the UCP600 SGH-I900

7 7/ No Power (PDA) Picture 2-1-3, 2-1-4, SGH-I900 UCP600 U304 1 C668 C665 C674 C667 C677 U605

8 8/ No Power (PDA) U304 Pin number 1C668 Voltage Div : 1V, Time Div : 1 Scope 2-1-3, SGH-I900 3V 4V

9 9/ No Power (PDA) C665, C674C667, C677 Voltage Div : 1V, Time Div : 1 Scope V SGH-I V

10 10/ No Power (Phone) Trouble shooting Power-on-current >= 100mA U201 P2 = 1.8V D300 P2 = 1.8V Input the power (3.8V) Download S/W (Phone) Check U201Check UME201 Its a general case. It cannot be available on the special case. Y N Y N Y N SGH-I900 OSC102 = 32kHz Check OSC102 or UCP600 Check U301 Y N D300 P3 = 1.8V Check D300 Y N

11 11/ No Power (Phone) Input the power 3.8V 2. Check the power-on-current >= 100mA - If not : Download Phone software (refer to 2-2. Lockup/Reset) 3. Check the voltage 1) U201 Pin number 2 = 1.8V (Low) - If not : Check the U201 (crack, open, short, etc) 2) D300 Pin number 2 = 1.8V (Low) - If not : Check the UME201 (crack, open, short, etc) 3) D300 Pin number 3 = 1.8V (Low) - If not : Check the D300 (crack, open, short, etc) SGH-I900

12 12/ No Power (Phone) 4. Check the OSC102 = 32kHz - If not : Check the OSC102 or UCP If there is no problem from 1 to 4, check the U301 (crack, open, short, etc) SGH-I900

13 13/ No Power (Phone) Picture 2-1-3, 2-1-4, SGH-I900 UME201 U , 3 D300 UCP600 OSC102

14 14/ No Power (Phone) U201 P2, D300 P2, 3OSC102 Voltage Div : 1V, Time Div : 1 Voltage Div : 1V, Time Div : 20 Scope 2-1-3, kHz SGH-I V

15 15/ Lockup / Reset Trouble shooting Download Completed Lockup or reset (Same as declared) Lockup/Reset (Omnia screen) Check UME200 (Phone) Repeat the lockup/reset test Its a general case. It cannot be available on the special case. Y N Y N SGH-I900 Lockup/Reset (Phone off after power on) Use a PDA J-TAG Use a Phone J-TAG Download the latest PDA S/W Download the latest Phone S/W Check UCP600 (PDA) N Check UCP200 (Phone) Check UCP600 (PDA)

16 16/ Lockup / Reset Use a J-TAG to enable USB - Lockup/Reset on Omnia screen : Use a PDA J-TAG - Phone off after power on : Use a Phone J-TG 2. Download the latest software - If download is not completed : Check the UCP600 (PDA) (crack, open, short, etc) : Check the UME200 (Phone) (crack, open, short, etc) Picture SGH-I900 UCP600 UCP200 UME200

17 17/ Lockup / Reset - If download is completed but it still has the same defect : Check the UCP600 (PDA) (crack, open, short, etc) : Check the UCP200 (Phone) (crack, open, short, etc) - If download is completed and you cannot find the same defect : Repeat the lockup/reset test declared originally SGH-I900

18 18/ SIM Card Failed Trouble shooting Pin 1, 2, 4 = 3V Pin 3 = 3V Clock Check the 6-pins of SIM socket Clean or change SIM socket Check U301 or UCP200 Its a general case. It cannot be available on the special case. There is durst or damaged N Input the power (3.8V) Y N SGH-I900

19 19/ SIM Card Failed 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 U301 or UCP200 (crack, open, short, etc) Check the voltage when you input the power on the PBA. Picture SGH-I

20 20/ SIM Card Failed Pin number 1, 2, 4Pin number 3 Voltage Div : 1V, Time Div : 50 Scope V 1.9V 3V Clock 1.9V Clock SGH-I900

21 21/ Camera Failed Trouble shooting Its a general case. It cannot be available on the special case. Clean or Change HDC500 There is durst or damaged Check HDC500 U512 P3 = 3V Y N SGH-I900 Check UCP600 Y N C535 = 1.2V Check U512 N

22 22/ Camera Failed Check the HDC500 - If there is a durst or damaged : Clean or change the HDC Connect a camera and input the power 3.8V 3. Check the voltage U512 Pin number 3= 3V - If not : Check the UCP600 (crack, open, short, etc) 4. Check the voltage C535 = 1.2V - If not : Check the U512 (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 SGH-I900

23 23/ Camera Failed Picture 2-4-3, SGH-I900 UCP600 U512 3C535 HDC500

24 24/ Camera Failed U512 Pin number 3C535 Voltage Div : 1V, Time Div : 1 Scope 2-4-3, SGH-I V 3V

25 25/ No Vibration Trouble shooting Its a general case. It cannot be available on the special case. Check the HDC500 Clean or Change HDC500 There is durst or damaged U510 P1 = 3V Check U609 N Connect a motor Input the power Vibration on Y N C541 = 3V Check U510 N SGH-I900

26 26/ No Vibration Check the HDC500 - If there is a durst or damaged : Clean or change the HDC Connect a motor, input the power (3.8V), Vibration on 3. Check the voltage U510 Pin number 1 = 3V - If not : Check the U609 (crack, open, short, etc) 4. Check the voltage C541 = 3V - Check the U510 (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 SGH-I900

27 27/ No Vibration Picture 2-5-1, 2-5-3, U510, U541 Voltage Div : 1V, Time Div : 1 Scope 2-5-3, V SGH-I900 HDC500 U510 1 U609 C541

28 28/ Bluetooth Searching Failed Trouble shooting Its a general case. It cannot be available on the special case. SGH-I900 Check L119, ANT103 Resolder or change There is problem (crack, open) U101 P6 = 3.3V U101 P5 = 1.8V Check U101 Y N Input the power Bluetooth on Search devices Y N OSC101 = 26MHz Check OSC101 Y N Check MOD100

29 29/ Bluetooth Searching Failed 1. Check the L119, ANT103 (crack, open, etc) - If there is a problem : Resolder or change it 2. Input the power (3.8V), Bluetooth on, Search devices 3. Check the voltage U101 Pin number 6 = 3.3V, Pin number 5 = 1.8V - If not : Check the U101 (crack, open, short, etc) 4. Check the clock OSC101 = 26MHz - If not : Check the OSC101 (crack, open, short, etc) 5. If there is no problem from 1 to 4, check the MOD100 (crack, open, short, etc) SGH-I900

30 30/ Bluetooth Searching Failed Check the voltage during searching devices - LCD and TSP must be connected to PBA. - Insert a SIM card and input the power. - Activate on the bluetooth and search devices. SGH-I900

31 31/ Bluetooth Searching Failed Picture 2-6-1, 2-6-3, 2-6-4, SGH-I900 U101 L119 ANT103 MOD100 OSC101 5,6

32 32/ Bluetooth Searching Failed U101 Pin number 6U101 Pin number 5 Voltage Div : 1V, Time Div : 1 Scope SGH-I V 3.3V

33 33/ Bluetooth Searching Failed OSC101 Voltage Div : 1V, Time Div : 20 Scope SGH-I900 26MHz

34 34/ No Charging Trouble shooting Its a general case. It cannot be available on the special case. Connect TA to the power supply U303 P10 = 5V Check U303 or IFC400 Input the power (5V) N Check UCP600 Y SGH-I900 Current = 400 ~ 600mA Check U301 N Y

35 35/ No Charging Connect TA to the power supply and input the power (5V) 2. Insert a TA to PBA 3. Check the current = 400 ~ 600mA - If not : Check the U301 (crack, open, short, etc) 4. Check the voltage U303 Pin 10 = 5V - If not : Check the U303 or IFC If there is no problem from 1 to 4, check the UCP600 (crack, open, short, etc) Check the voltage during charging. - TA can be connected to power supply must be prepared. TA Picture 2-7-1, Insert to PBA SGH-I900

36 36/ No Charging Picture 2-7-4, U303 Pin number 10 Voltage Div : 1V, Time Div : 1 Scope V SGH-I900 IFC400 U UCP600 U301

37 37/ 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


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