N7000_Service_Manual.pdf

GSM TELEPHONE

GT-N7000/N7000L Common

GSM TELEPHONE

CONTENTS

1. Safety Precautions

2. Specification

3. Product Function

4. Exploded View and Parts list

5. MAIN Electrical Parts List

6. Level 1 Repair

7. Level 2 Repair

8. Level 3 Repair

9. Reference data

Notice: All functionality, features, specifications, and

other product information provided in this document,

including but not limited to, benefits, design, pricing,

components, performance, availability, and capabiliti

-es of the product are subject to change without

notice. Samsung reserves the right to alter this doc

-ument or the product described herein at anytime,

without obligation to provide notification of such

changes.

This Service Manual is a property of Samsung Electronics Co.,Ltd.

Any unauthorized use of Manual can be punished under applicable

International and/or domestic law.

Samsung Electronics Co.,Ltd.

ⓒ

2011. 10. Rev.1.0

1. Safety Precautions

1-1. Repair Precaution

Before attempting any repair or detailed tuning, shield the device from RF noise or static

electricity discharges.

Use only demagnetized tools that are specifically designed for small electronic repairs,

as most electronic parts are sensitive to electromagnetic forces.

Use only high quality screwdrivers when servicing products. Low quality screwdrivers can

easily damage the heads of screws.

Use only conductor wire of the properly gauge and insulation for low resistance, because of

the low margin of error of most testing equipment.

We recommend 22-gauge twisted copper wire.

Hand-soldering is not recommended, because printed circuit boards (PCBs) can be easily

damaged, even with relatively low heat. Never use a soldering iron with a power rating of

more than 100 watts and use only lead-free solder with a melting point below 250°C (482°F).

Prior to disassembling the battery charger for repair, ensure that the AC power is disconnected.

Always use the replacement parts that are registered in the SEC system. Third-party replac

ement parts may not function properly.

1-1

Confidential and proprietary-the contents in this service guide subject to change without prior notice.

Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

Safety Precautions

1-2. ESD(Electrostatically Sensitive Devices) Precaution

Many semiconductors and ESDs in electronic devices are particularly sensitive to static discha

rge and can be easily damaged by it. We recommend protecting these components with cond

uctive anti-static bags when you store or transport them.

Always use an anti-static strap or wristband and remove electrostatic buildup or dissipate

static electricity from your body before repairing ESDs.

Ensure that soldering irons have AC adapter with ground wires and that the ground wires are

properly connected.

Use only desoldering tools with plastic tips to prevent static discharge.

Properly shield the work environment from accidental electrostatic discharge before opening

packages containing ESDs.

The potential for static electricity discharge may be increased in low humidity environments,

such as air-conditioned rooms. Increase the airflow to the working area to decrease the

chance of accidental static electricity discharges.

1-2

Confidential and proprietary-the contents in this service guide subject to change without prior notice.

Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

2. Specification

2-1. GSM General Specification

WCDMA

2100

WCDMA

1900

WCDMA

900

WCMDA

850

GSM850 EGSM 900 DCS1800 PCS1900

Freq.

Band[MHz]

Uplink/

Downlink

824~849

869~894

880~915

925~960

1710~1785

1805~1880

1850~1910

1930~1990

1922~1977

2112~2167

1852~1907

1932~1987

880~915

925~960

824~849

869~894

UL:

9612~9888

DL:

10562~1083

UL:

9262~9538

DL:

9662~9938

UL:

2712~2863

DL:

2937~3088

UL:

4132~4233

DL:

4357~4458

0~124 &

975~1023

ARFCN

range

128~251

512~885

512~810

Tx/Rx

spacing

45MHz

95MHz

80MHz

190MHz

80MHz

45MHz

Mod. Bit

rate/

Bit Period

270.833kbp

3.692us

270.833kbp

3.692us

270.833kbp

3.692us

270.833kbp

3.692us

3.84Mcps

FrameLengt

10ms

Slotlength:

0.667ms

FrameLengt

10ms

Slotlength:

0.667ms

FrameLengt

10ms

Slotlength:

0.667ms

FrameLengt

10ms

Slotlength:

0.667ms

Time Slot

Period/

Frame

Period

576.9us

4.615ms

576.9us

4.615ms

576.9us

4.615ms

576.9us

4.615ms

QPSKHQPS

Modulation

0.3GMSK

33dBm~5dB

30dBm~0dB

24dBm~

-50dBm

24dBm~

-50dBm

24dBm~

-50dBm

24dBm~

-50dBm

MS Power

Power

Class

5pcl ~

19pcl

3(max+24dB

5pcl ~19pcl

0pcl ~15pcl

Sensitivity

-102dBm

-100dBm

-106.7dBm

TDMA Mux

Cell Radius

35Km

2Km

2-1

Confidential and proprietary-the contents in this service guide subject to change without prior notice.

Distribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.

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