BLU Products Jenny Manual de usuario

BLU Jenny

Service Manual

CAUTIONS

Boards, which contain Electrostatic Sensitive Device(ESD), art indicated. Following information is ESD

handling:

- Service personnel should ground themselves by using a wrist strap when exchange system boards.

- When repairs are made to a system board, they should spread the floor with anti-static mat which is also grounded.

- Use a suitable, grounded soldering iron.

- Keep sensitive parts in these protective packages until these are used.

- When returning system boards or parts like EEPROM to the factory, use the protective packages as describe

Content

1. Brief Introduction….…………………………………………………………………………………...3

2. Exploded View………………………………………………………………………………………….4

3. Tools……………………………………………………………………………………………………..5

4. Assemble & Dissemble

Disassembly............ ...…………………………………………………………………………... ...6

Assembly………………………………………………………………………………………….…..7

5. Picture of main board

A&B side of PCBA .…………….…………………………………………………….…………….8

A&B of PCBA Layout………….….………….…………………………….………………….……..9

6. System Block Chart…………………………………………………………………………………...10

7. Unit Circuit Map ………………………………………………………………………..…... .11～18

8. Trouble Shooting Guide ……..…………………………………………………………….... 19～36

9. Upgrading & IMEI writing………………………………………………………………...……...38～46

10. CIT testing…………………………………………………………………………………… ……...47

Chapter 1 Specification

Jenny T172i Features & Functions

-Dual SIM Dual Standby Single Connection

-Fashion bar phone

-FM

-Multi-Media application

-0.08Mega with sw upgrade 0.3M

-T-Flash（Support 8G

-T Card）1.8“TFT 128*160 

-MP3、MP4、AVI 、3GP



-USB1.1，Mini USB

Specification:

Network: 850/900/1800/1900MHz

Display: 1.8“TFT 128*160

Camera: 0.08Mega with SW upgrade 0.3M;

Talk time: 500 min

Stand-by: 270 hour

Lithium Battery: Standard (800mAh)

USB Data cable: USB 1.1

Chapter 2 Exploded View

1. Lens Protect film 2. Lens 3. Receiver dust gauze 4. Lens gum

5. Front cover 6. LCD foam 7. LCD 8. Main PCBA

9. White LED 10. 3 in 1 speaker 11. Speaker seal foam 12. Camera

13. Camera seal foam 14. Back cover 15. FM antenna 16. Screw

17. Camera lens gum 18. Camera lens 19. Battery cover 20. Battery

21. Antenna 22. Screw 23. Microphone 24. Keypad DOME

25. Keypad

Chapter 3 Tools

Solder iron Hot Air Gun

Power Supply Multimeter Solder wire, Flux

Tweezers Screw

Driver

Cable

Wrist

grounding

strap

Pick Antistatic

gloves

PC, Download cable Others

Chapter 4 Disassembly & Assembly

1. Disassembly Process

1. Remove the battery cover 2. Unfasten the 4 screws by screw driver

3. Prize up the back cover by pick 4. Stick protection film for LCM.

5. Stick protection film for front cover. 6. Take out the PCBA by pick.

Finished.

2. Assembly Process

1. Install the PCBA 2. Tear down the LCD protection film.

3. Tear down the protection film. 4. Install the rear cover module.

5. Fasten the 4 screws. 6. Install the back cover.

Finished.

Chapter 5 Picture of PCBA

5.1 Side A

PCBA (Side A) Location of components

Side A

Keypad

Connector

Mic

5.2 Side B

PCBA (Side B) Location of Components

J301

T-flash connector

J201 battery

J502、J503

LCD connector

U502 RF

PA IC

J302 I/O

Side B

J601 camera

connector

U101

CPU

U501

conector SIM connector RF7176

connector 26MHZ

5.3 PCBA Layout side A

5.4 PCB Layout Side B

Tabla de contenidos

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