LG KP108 Service Manual

KP108

Date: October, 2008 / Issue 1.0

Internal Use Only

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

•

•

•

•

•

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

•

•

•

•

•

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

]

•

•

•

]

•

•

•

•

•

•

]

•

•

•

]

• Σ∆

•

•

•

•

]

•

]

•

•

•

•

•

•

•

• •

•

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

•

•

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

•

•

•

•

•

•

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

•

•

•

•

•

•

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

X102

MC-146_12_5PF

OSC32K

F32K

R5
B4

C131

18p

12

C132

18p

4

32.768KHz

3

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

(ENQY0013801)

IMSA-9671S-13Y902

27p

C122

47R107

C126

NA

R111 47

R110 47

C125

27p

C124

NA

EVL5M02200

VA102

NA

R113

R112 47

2

3

4

5

6

7

8

9

CN101

14
15

1

10

11

12

13

C121

NA

2V8_VIO

C123

27p

VA101

EVLC5S0250

_LCD_CS

SSC0_MTSR

MLED1

MLED2

LCD_ID

MLED

LCD_RESET

SSC0_CLK

CHARGE PUMP

1u

C106

U101

C1+

10

9

C1-

7

C2+

6

C2-

CP

8

1

D1
D2

2
3

D3

EN_SET

11

GND

4

5

IN

NC

12

AAT3157ITP-T1

C101

1u

100K

R104

C103

NA1u

C102

C109

NA

C104

1u

C108

NA

VBAT

W_LED_DRV

MLED1
MLED2

MLED

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

SIM_CONNECTOR

2V85_VSIM

2V85_VSIM

1
2
3
7

2V85_VSIM

C134

0.1u

SIM_RST

C135

22p

R129

4.7K

SIM_DATA SIM_CLK

C133
22p

R130

0

4
5
6
8

J101

GND
VPP
I_O

GND1GND2

VCC

RST
CLK

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

•

•

END_KEY

2V0_VRTC

KEY MATRIX

SW301

END

KEY_OUT1

KEY_OUT2

KEY_OUT3

KEY_OUT4

KEY_IN0

KEY_IN1

KEY_IN2

KEY_IN3

KEY_IN4

SW302 SW306

1

SW307

4

7

SW317

*

SW303

2

SW308

5

SW313

8

SW318

0

SW304

3

SW309 SW311

6

SW314

9

SW319 SW320

#

SW305

LEFT

SW310

UP

SW315SW312

RIGHT

DOWN

MENU

SEL

SW316

SEND

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.

Only for training and service purposes

CHARGING IC

VCHARGE

VBAT

CHARGE_DETECT

CHG_EN

R119

1.8KR120

47R121

R125

100K

470K

R126

100K

U102 MP26021

1

IN

2

_CHG

3

_ACOK

4

_EN

5

NTC

C129

2.2u

(25V,K,Y5V)

(2012)

PGND

11

BATT

ISET

IBF

GND

10
9
8
7

SS

6

C130

R127

20K

0.1u

(1%)

(85mA)

R123
620

R128

3.9K

(1%)

(400mA)

C128

4.7u

(1608)

LGE Internal Use Only

Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

VLOGIC
TX_RAMP
TXON_PA

1K R405

BS

C408

39p

C409

39p

C410

39p

10
11

6
7
8
9

C411
39p

PCS_RX
GSM_RX
GND1
GND2
GND3
ANT

4

5

BS

TX_EN

VRAMP

U401

SKY77517

GND4

GND5

GND6

12

13

3

VLOGIC

GND7

14

2

1

VBATT

20

GND9

PCS_IN

GSM_IN

GND8

19
18

NC

17
16

DCS_PCS_OUT

GSM_OUT

PGND

21

15

2G13G25G310

G4

O2_2

I2

4

I1

1

6

O2_1

7

O1_2

8

O1_1

9

B9310FL401

PART_NO SFSB0001401

IN CASE OF GSM850/PCS1900

CHANGE THIS DUAL SAW FILTER

TO PART_NO SFSB0001301

C414 3p

C415 3p

3pC413

L404
18nH

GSM_RXN

GSM_RXP

DCS_RXN

L405

5.1nH

3pC416

DCS_RXP