Samsung Electronics

PBA Repair Guide[GT-S8000]

PBA Repair Guide[GT-S8000]

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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-S8000

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1. PBA Diagram

Bottom

Diagram Appearance

GT-S8000

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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-S8000

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) C243 = 3V

2) C272 = 1.2V, C273 = 1.8V, C274 = 1.3V

- If not : Check the PMIC200 (crack, open, short, etc)

4. Check the OSC201 = 32kHz

- If not : Check the OSC201 (crack, open, short, etc)

5. If there is no problem from 1 to 4, check the UCP701.

GT-S8000

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2-1. No Power GT-S8000

UCP701UCP701UCP701UCP701

C243

C243

OSC201

OSC201

C272

C272

C273

C273

C274

C274

●●

●●

●●

●●

●●

Picture 2-1-3, 2-1-4, 2-1-5Picture 2-1-3, 2-1-4, 2-1-5

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2-1. No Power GT-S8000

C243 C272

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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2-1. No Power GT-S8000

C273 C274

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

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

1.8V1.8V1.3V1.3V

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2-1. No Power GT-S8000

OSC210

Voltage Div : 1V, Time Div : 20 ㎲

Scope 2-1-4Scope 2-1-4

32kHz32kHz

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2-2. Lockup / Reset

Trouble shooting

DownloadCompletedDownloadCompleted

Lockup or reset(Same as declared)

Lockup or reset(Same as declared) Check UCP701Check UCP701Use a J-TAGUse a J-TAG

Check UCP701Check UCP701 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-S8000

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2-2. Lockup / Reset

1. Use a J-TAG to enable USB

2. Download the latest software

- If download is not completed

: Check the UCP701

(crack, open, short, etc)

- If download is completed

but it still has the same defect

: Check the UCP701 (crack, open, short, etc)

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

: Repeat the lockup/reset test declared originally

GT-S8000

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

UCP701UCP701

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2-3. SIM Card Failed

Trouble shooting

U607Pin 13, 9 = 3V

U607Pin 13, 9 = 3V

Check theSIM socket

& HEA600 Conn.

Check theSIM socket

& HEA600 Conn.

Clean or change SIM socket

& HEA600 Conn.

Clean or change SIM socket

& HEA600 Conn.

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

There is Durstor Damaged

There is Durstor Damaged

GT-S8000

Check Sub PBACheck Sub PBA

SIM SocketPin 1 = 3VSIM SocketPin 1 = 3V

SIM SocketPin 3 = 3V Clock

SIM SocketPin 3 = 3V Clock

Check Sub PBACheck Sub PBACheck UCP300Check UCP300

HEA600Pin 27 = 3V

HEA600Pin 27 = 3V

SIM SocketPin 2, 4 = 3VSIM Socket

Pin 2, 4 = 3V

Check U607Check U607 Check Sub PBACheck Sub PBA

Check PMIC200Check PMIC200

C525 = 3VC525 = 3V

YY

YY

NN

YY

NN

YY

NN

YY

NN

YY

NN NN

Connect a sub PBAInput the power

(3.8V)

Connect a sub PBAInput the power

(3.8V)

NN

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2-3. SIM Card Failed

1. Check the 6-pins of SIM socket

- If there is a durst or damaged : Clean or change the SIM

socket

2. Check the HEA600 Connector

- If it is damaged : Change the HEA600

3. Connect a sub PBA to PBA and input the power 3.8V

4. Check the U607 Pin number 13, 9 = 3V

- If not : Check the U607 (crack, open, short, etc)

5. Check the SIM Socket Pin number 2, 4 = 3V

- If not : Check Sub PBA (crack, open, short, etc)

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

GT-S8000

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2-3. SIM Card Failed

6. Check the C252 = 3V

- If not : Check the PMIC200 (crack, open, short, etc)

7. Check the SIM Socket Pin number 1 = 3V

- If not : Check the Sub PBA (damaged)

8. Check the HEA600 Pin number 27 = 3V Clock

- If not : Check the UCP300 (crack, open, short, etc)

9. Check the SIM Socket Pin number 3 = 3V Clock

- If not : Check the Sub PBA (damaged)

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

GT-S8000

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2-3. SIM Card Failed GT-S8000

UCP300UCP300

●●

1 2 31 2 3

●●

PMIC200PMIC200

●●

●●

44

●●

●●

U607U607

PIN 13PIN 13

PIN 9PIN 9

●●

C252C252HEA600HEA600

●●

PIN 27PIN 27

Sub PBASub PBA

Picture 2-3-1~9Picture 2-3-1~9

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2-3. SIM Card Failed GT-S8000

U607 Pin number 13, 9 SIM Socket Pin number 2, 4

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

Scope 2-3-4, 2-3-5Scope 2-3-4, 2-3-5

3V3V 3V3V

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2-3. SIM Card Failed GT-S8000

C252 SIM Socket Pin number 1

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

Scope 2-3-6, 2-3-7Scope 2-3-6, 2-3-7

3V3V 3V3V

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2-3. SIM Card Failed GT-S8000

HEA600 Pin number 27 SIM Socket Pin number 3

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

Scope 2-3-8, 2-3-9Scope 2-3-8, 2-3-9

3V Clock3V Clock 3V Clock3V 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-S8000

Clean or ChangeHEA500

Clean or ChangeHEA500

There is durstor damaged

There is durstor damaged C523 = 2.8VC523 = 2.8V

Check UCP701Check UCP701

YY

NN

NN

Check HEA500Check HEA500

Connect a cameraInput the power

Enter thecamera preview

Connect a cameraInput the power

Enter thecamera preview

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2-4. Camera Failed

1. Check the HEA500

- If there is a durst or damaged : Clean or change the HEA500

2. Connect a camera and input the power 3.8V

3. Enter the camera preview mode

4. Check the voltage C523 = 2.8V

- If not : Check the UCP701 (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-S8000

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2-4. Camera Failed GT-S8000

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

R610

Voltage Div : 1V, Time Div : 1 ㎳

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

2.8V2.8VUCP701UCP701

HEA500HEA500

C523C523 ●●

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2-5. No Vibration

Trouble shooting

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

GT-S8000

C609 = 2.8VC609 = 2.8V

Check U601Check U601

U601 Pin 1 = 3VU601 Pin 1 = 3V

Check UCP701Check UCP701

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 U601 Pin number 1 = 3V

- If not : Check the UCP701 (crack, open, short, etc)

3. Check the voltage C609 = 3V

- If not : Check the U601 (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-S8000

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2-5. No Vibration GT-S8000

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

C609C609

U601U601

●●

11UCP701UCP701

●●

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2-5. No Vibration GT-S8000

U601 Pin number 1 C609

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

3V3V 3V3V

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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-S8000

C218 = 3VC218 = 3V

Check PMIC200Check PMIC200

C202 = 26MHzC202 = 26MHz

Check OSC200Check OSC200

L207 = 1.5VL207 = 1.5V

Check U201Check U201

YY

NN

YY

NN NN

Input the powerBluetooth on

Search devices

Input the powerBluetooth on

Search devicesThere is a problemThere is a problem

Resolder or changeANT_BT

Resolder or changeANT_BT

YY

NN

Check ANT_BTCheck ANT_BT

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2-6. Bluetooth Searching Failed

1. Check the ANT_BT (crack, open, etc)

- If there is a problem : Resolder or change ANT_BT

2. Input the power (3.8V), Bluetooth on, Search devices

3. Check the Voltage C218 = 3V

- If not : Check the PMIC200 (crack, open, short, etc)

4. Check the clock C202 = 26MHz

- If not : Check the OSC200 (crack, open, short, etc)

5. Check the Voltage L207 = 1.5V

- If not : Check the U201 (crack, open, short, etc)

GT-S8000

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2-6. Bluetooth Searching Failed

※ Check the voltage during searching the devices.

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

- Insert a SIM card and input the power.

- Activate on the bluetooth and searching devices.

GT-S8000

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2-6. Bluetooth Searching Failed GT-S8000

Picture 2-6-1, 2-6-3, 2-6-4, 2-6-5Picture 2-6-1, 2-6-3, 2-6-4, 2-6-5

U201

U201

●●

PMIC200

PMIC200

OSC200

OSC200

C218

C218

L207L207

C202

C202

●●

●●

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2-6. Bluetooth Searching Failed GT-S8000

C218 C202

Voltage Div : 1V, Time Div : 1 ㎳ Voltage Div : 1V, Time Div : 20 ㎱

Scope 2-6-3, 2-6-4Scope 2-6-3, 2-6-4

3V3V

26MHz26MHz

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2-6. Bluetooth Searching Failed GT-S8000

L207

Voltage Div : 1V, Time Div : 1 ㎳

Scope 2-6-5Scope 2-6-5

1.5V1.5V

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2-7. No Charging

Trouble shooting

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

GT-S8000

Connect TATo the power supply

Connect TATo the power supply

Current = 400 ~ 600mACurrent = 400 ~ 600mA

Check U600Check U600

NN

Input the power(5V)

Input the power(5V)

C618 = 5VC618 = 5V

CheckU608 or IFC600

CheckU608 or IFC600

NN

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2-7. No Charging

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

2. Insert a TA to PBA

3. Check the current = 400 ~ 600mA

- If not : Check the U600

(crack, open, short, etc)

4. Check the Voltage C618 = 5V

- If not : Check the U608 or IFC600

(crack, open, short, etc)

※ Check the voltage during charging.

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

GT-S8000

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-S8000

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

C618

Voltage Div : 1V, Time Div : 1 ㎳

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

IFC600IFC600

●●

U608

U608

C618

C618

5V5V

U600

U600

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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