Samsung SGH-E500 service manual.pdf

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GSM TELEPHONE

SGH-E500

GSM TELEPHONE

10.

CONTENTS

Safety Precautions

Specification

Product Function

Array course control

Exploded View/Disassembly

and Assembly Instructions

MAIN Electrical Parts List

Block Diagrams

PCB Diagrams

Flow Chart of Troubleshooting

Reference data

CONTENTS

1. Safety Precautions

1-1. Repair Precaution...........................................................................1-1

1-2. ESD(Electrostatically Sensitive Devices) Precaution ..........................1-2

2. Specification

2-1. GSM General Specification .............................................................2-1

2-2. GSM Tx Power Class .....................................................................2-2

3. Product Function

4. Array course control

4-1. Downloading Binary,Tfs Files .........................................................4-2

4-2. Pre-requsite for Downloading .........................................................4-2

4-3. S/W Downloader Program .............................................................4-3

5. Exploded View/Disassembly & Assembly Instructions

5-1. Cellular phone Exploded View.........................................................5-1

5-2. Cellular phone Parts list.................................................................5-2

5-3. Disassembly & Assembly Instructions..............................................5-4

6. MAIN Electrical Parts List

7. Block Diagrams

7-1. RF Solution Block Diagram.............................................................7-1

7-2. Base Band Solution Block Diagram..................................................7-2

8. PCB Diagrams

CONTENTS

9. Flow Chart of Troubleshooting

9-1. Power On......................................................................................9-1

9-2. Initial ..........................................................................................9-4

9-3. Charging Part................................................................................9-6

9-4. Sim Part.......................................................................................9-8

9-5. Microphone Part ..........................................................................9-10

9-6. Speaker Part...............................................................................9-12

9-7. Key Data Input............................................................................9-15

9-8. Receiver Part...............................................................................9-17

9-9. Back Light(for LCD)......................................................................9-19

9-10. Key Back Light...........................................................................9-21

9-11. Camera Part..............................................................................9-22

9-12. BLUETOOTh...............................................................................9-24

9-13. GSM Receiver............................................................................9-26

9-14. GSM Transmitter........................................................................9-29

9-15. DCS Receiver.............................................................................9-31

9-16. DCS Transmitter........................................................................9-33

9-17. PCS Receiver.............................................................................9-35

9-18. PCS Transmitterr........................................................................9-37

10. Reference data

Safety Precautions

1-1. Repair Precaution

● Repair in Shield Box, during detailed tuning.

Take specially care of tuning or test,

because specificity of cellular phone is sensitive for surrounding interference(RF noise).

● Be careful of using any kind of magnetic object or tool,

because performance of parts is damaged by the influence of magnetic force.

● Surely use a standard screwdriver when you disassemble this product,

otherwise, screw will be worn away.

● Use a thick twisted wire when you measure level.

A thick twisted wire has low resistance, therefore, a chance of measurement error is low.

● Repair after separate Test Pack & Set because of short-danger (for example an

overcurrent and furious flames of parts, etc) when you repair board in condition of

connecting Test Pack and tuning on.

● Take special care of soldering, because Land of PCB is small and weak in heat.

● Surely turn on/off the phone while using AC power plug, because a repair of battery

charger is dangerous when you turn ON/OFF PBA and Connector after disassembling charger.

● Don't use as you pleases after change other material than replacement registered on SEC System.

Otherwise engineer in charge isn't charged with problem that you don't keep this rules.

1-1

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

afety Precautions

1-2. ESD(Electrostatically Sensitive Devices) Precaution

Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD

(Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below.

You can prevent from ESD damage by static electricity as following:

● Remove remaining static electricity on your body before you touch semiconductor or parts with

semiconductor. Please touch an earthed place or wear static electricity

prevention string on wrist.

● Use earthed soldering steel when you connect or disconnect ESD.

● Use soldering-removing tool to break static electricity ,otherwise ESD will be damaged by

static electricity.

● Don't unpack until you set up ESD on product. Because most of ESDs are packed in box and

aluminum plate to have conductive power to avoid static electricity.

● You must maintain electric contact between ESD and plate until ESD is connected

completely to the proper place or a circuit board.

1-2

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

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