LG B1300 Manual de usuario

SERVICE MANUAL

B1300

Table of Contents

Chapter 1 - Performance ……………………

Chapter 2 –Technical Brief ……………………

Chapter 3 –Failure List ……………………

Chapter 4 –Trouble Shooting ……………………

1-1. Performance …………………………………………..

1-2. HW Feature ……………………………………………

2-1. The RF Chipset ………………………………………

2-2. The PA Circuit ……………………………………….

2-3. Peripheral Circuit ……………………………………

2-4. Digital Baseband Chip ………………………………

2-5. Analog Baseband Chip ………………………………

2-6. CPU Memories ……………………………………….

2-7. Power Supplies ……………………………………….

2-8. Battery Charge Interface ………………………….

2-9. System Connector ………………………………….

2-10. Keypad Switches and Scanning …………………..

2-11. Display Interface …………………………………….

2-12. Microphone …………………………………………..

2-13. Receiver/Speaker/Buzzer …………………………

2-14. Headset Interface …………………………………..

2-15. Back-light Illumination ……………………………

2-16. Vibrator ………………………………………………

4-1. Power Supply …………………………………………

4-2. Software Download …………………………………

4-3. Voice Function ………………………………………

4-4. Display Function …………………………………….

Table of Contents

Chapter 5 –Test Point Data ……………………

Chapter 6 –Assembly Instructions ……………………

Chapter 7 –Block Diagram ……………………

Chapter 10 –Equipment List ……………………

Chapter 11 –Exploded View &

Replacement Part List

……………………

Chapter 12 –Repair Record Form ……………………

5-1. Component Side(1-1) ……………………………….

5-2. Component Side(1-2) ……………………………….

5-3. Keypad Side(2-1) …………………………………….

1. Remove Battery Cover …………………………………

2. Remove Battery ………………………………………….

3. Remove Screws …………………………………………

4. Turn Handset Up ………………………………………..

5. Take off Front Panel …………………………………..

6. Take off Keypad & Metal-Dome …………………….

7. Take off Mainboard …………………………………….

8. Take off Battery Connecter & MIC & Vibrator …..

9. Turn Mainboard Down …………………………………

10. Take off Antenna ……………………………………...

11. Take off Shielding Cover …………………………….

Chapter 8 –Circuit Diagram ……………………

Chapter 9 –Tooling List ……………………

1. RF Section ………………………………………………..

2. Baseband Section ……………………………………….

Chapter 1. Performance

Item Description Specification

1Frequency Band

EGSM900 band

Tx: 890 + n*0.2 MHz

Rx: 935 + n*0.2 MHz

(n = 0 ～ 124)

Tx: 890 + (n-1024)*0.2 MHz

Rx: 935 +(n-1024)*0.2 MHz

(n = 975 ～ 1023)

GSM1800 band

Tx: 1710 + (n-512)*0.2

Rx: 1805 + (n-512)*0.2

(n = 512 ～ 885)

2Phase error RMS < 5 degrees

Peak < 20 degrees

3Frequency error < 0.1ppm ~ =90 Hz (for GSM900)

or 180 Hz (for GSM1800)

4Power Level

GSM900

Control Level Power level Tolerance

5 33 dBm ±2dB

6 31 dBm ±3dB

7 29 dBm ±3dB

8 27 dBm ±3dB

9 25 dBm ±3dB

10 23 dBm ±3dB

11 21 dBm ±3dB

12 19 dBm ±3dB

13 17 dBm ±3dB

14 15 dBm ±3dB

15 13 dBm ±3dB

16 11 dBm ±5dB

17 9 dBm ±5dB

18 7 dBm ±5dB

19 5 dBm ±5dB

1-1 Performance

-4 -

Item Description Specification

4Power Level

GSM1800

Control Level Power Level Tolerance

0 30 dBm ±2dB

1 28 dBm ±3dB

2 26 dBm ±3dB

3 24 dBm ±3dB

4 22 dBm ±3dB

5 20 dBm ±3dB

6 18 dBm ±3dB

7 16 dBm ±3dB

8 14 dBm ±3dB

9 12 dBm ±4dB

10 10 dBm ±4dB

11 8 dBm ±4dB

12 6 dBm ±4dB

13 4 dBm ±4dB

14 2 dBm ±5dB

15 0 dBm ±5dB

5Spectrum due to

modulation

GSM900

Offset from Carrier

(KHz).

100

200

250

400

600 ~ <1200

1200 ~ <1800

1800 ~ <3000

3000 ~ <6000

≧6000

GSM1800

Offset from Carrier

(KHz).

100

200

250

400

600 ~ <1200

1200 ~ <1800

1800 ~ <3000

3000 ~ <6000

≧6000

Max.

dBc

+0.5

-30

-33

-60

-63

-65

-71

Max.

dBc

+0.5

-30

-33

-60

-65

-73

-5 -

Item Description Specification

6Spectrum due to switching

transient

GSM900

Offset from Carrier

(KHz).

400

600

1200

1800

GSM1800

Offset from Carrier

(KHz).

400

600

1200

1800

Max.

dBm

-19

-21

-24

Max.

dBm

-22

-24

-27

7Spurious emissions Conduction, Emission Status, Appendix 1

Conduction, Emission Status, Appendix 2

8Bit Error Rate

GSM900

BER(Class II) <2.439% @-102dBm

DCS1800

BER(Class II) <2.439% @-102dBm

9Rx Level Report accuracy

GSM900 GSM1800

>= -88 >= -86 2 2

>= -101 >= -99 3 2

< -101 < -99 4 2

10 SLR 8 +/- 3 dB

11 Sending Response

Frequency(Hz) Max.(dB) Min.(dB)

100 -12

200 0

300 0 -12

1,000 0 -6

2,000 4 -6

3,000 4 -6

3,400 4 -9

4,000 0

12 RLR 2 +/- 3 dB

-6 -

Item Description Specification

13 Receiving Response

Frequency(Hz) Max.(dB) Min.(dB)

100 -12

200 0

300 2 -7

500 * -5

1,000 0 -5

3,000 2 -5

3,400 2 -10

4,000 2

* Mean that Adopt a straight line in

between 300Hz& 1,000Hz to be Max.

level in the range.

14 STMR 13 +/- 5 dB

15 Stability Margin > 6 dB

16 Distortion

dB to ARL (dB) Level Ratio (dB)

-35 17.5

-30 22.5

-20 30.7

-10 33.3

0 33.7

7 31.7

10 25.5

17 Side tone Distortion Three stage distortion < 10%

18 <Change>System frequency

(13MHz) tolerance ≦2.5ppm

19 <Change>32.768KHz

tolerance ≦30ppm

20 Power consumption

Full power: < 280mA (GSM) ;

< 220mA (DCS)

Standby : Normal : <=5mA

21 Talk time GSM/ Level_7

(Battery Capacity 720mA): 180Min

-7 -

Item Description Specification

22 Standby time

Under conditions, at least 150 hours:

1.Brand new and full 720mAh battery

2.Full charge, keep GSM in idle mode

3.Broadcast set off.

4.Signal strength=-82dBm,

DRX=9multiframes

5.Back light of phone set off, no press

keypad

23 Ringer Volume

At least 90dB under below conditions:

1. Ringer set as ringer 7.

2. Test distance set as 10 cm

24 Charge Voltage Fast Charge: < 720 Ma

Trickle Charge: < 35 mA

25 Antenna display

Level (RSSI)

0 RSSI<=-104

1 -103<=RSSI<= -98

2 -97 <=RSSI<= -92

3 -91 <=RSSI<= -86

4 -85 <=RSSI<= -76

5 -75 <=RSSI

26 Battery indicator

Level (RSSI)

0 3.300≦V≦3.504

1 3.504≦V≦3.570

2 3.570≦V≦3.686

3 3.686≦V≦3.935

4 3.935≦V

27 Low Voltage Warning 3.504V

28 Forced shut down Voltage 3.35V

29 Battery Type

1 Li-Ion battery

Standard Voltage = 3.7V

Battery full charge voltage =4.2V

Capacity: 720mAh (Li-Ion);

-8 -

Item Description Specification

30 Travel Charger

Linear Charger

In put: 110V or 220 VAC, 50/60Hz

Out put: 5VDC+/-0.25V, 500mA

(No Load)

Switching-mode charger

In put: 96- 246VAC, 50/60Hz

Out put: 5VDC+/-0.25V, 500mA

(No Load)

-9 -

1-2 HW Feature

Item Feature Comment

Battery Li-Ion Battery, 720mAh

AVG TCVR current (mA) GSM Imax(280mA),DCS Imax(220mA)

Stand by current (mA) <=5mA

- Talk time

- Stand by time

- Charging time

3-hour (GSM Tx Level_7)

TBD-hour(Paging Period:5 RSSI:-82dBm)

2-hour

RX sensitivity GSM:-107dBm, DCS:-105dBm

TX output power GSM (Level 5:32dBm),

DCS (Level0: 29.5dBm)

GPRS compatibility N/A

SIM card type 3v/5v small

Display 128x64

Status Indicator Soft Icons

Keypad 0-9, #, *, C, Phone Book,up/down,

On/Off Hook

ANT Internal

System connector Yes

Ear Phone Jack N/A

PC synchronization N/A

Memory 2MB

Speech coding EFR/FR/HR

Data & Fax N/A

Vibrator Yes

Melody 15 default + 5 user edit

Voice Recording N/A

C-Mike N/A

Receiver Yes

Speaker Phone Yes

Portable Handsfree Yes, option

Travel Adapter Yes Switching

Options

- 10 -

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