troubleshooting

8. Level 3 Repair

8-1

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 Samsungs written authorization is strictly prohibited.

8-1. Block Diagram

SU

B P

MIC

U70

06

BT/

WIF

IU

405

NFC

U41

0

App

licat

ion

Pro

cess

or+

Cal

l P

roce

ssor

UC

P50

0

AP P

MI C

U70

03

IF P

MIC

U

7000

6Axics

BAROMETER

MAGNETIC

2GB

LPD

DR

3

VT

CAM

16M

C

AM

16G

B e

MM

C

MH

L

MU

LTI M

IC

Aud

io C

odec

Flas

h

Trav

elC

harg

er

X-TAL19.2MHz

BT_PCM

WLAN_SDIO

8

MIP

I 4 la

neS

PI,I2

C

MIP

I 2 la

neI2

C

HD

MI

4 la

neI2

C

SLI

M_B

US

EAR

mic

Mic

1

Mic

2

SPK

RC

V

I2C

60 p

in

inte

rface

co

nnec

tor

MU

IC D

M/P

US

B2.0

X-TA

L26

MH

z

I2C

5V

SIM

IF

Sens

orH

ubU

403

X-TA

L32

768H

z

S PII2C,INT

SV

C L

ED

Driv

er

Gesturer/Proxi/Light

I2C,INT

I2C,INT

BT

mod

ule

CLK

Buf

fer

CO

DE

C

CP

AP

US

B_D

_M/P

T/R

XD

LCD

MIP

I 8la

ne

SPI +

I2C

FPG

A

SM-G

900F

Blo

ck D

iagr

am

SLI

M_B

US

I2C,INT

Mic

3

VPS_L/R

IF P

MICMIC

_AD

C_C

LK

MIC

_AD

C_D

ATA

USB

3.0_

SS_

TX/R

X

HA

LL_S

EN

SO

R_I

NT

WP

C

TxIQ

PR

x/D

RxI

Q

Rx/

RF

ON

GP

SIQ

SS

BI

GP

DA

TA

IRLE

D

MH

L

60pi

nin

terfa

c eco

n.

A/S

Mot

or

E/P

Det

e cto

r

EAR

_MIC

_AD

C

EA

R_M

IC

EAR

OU

T

MA

IN P

MIC

Com

pani

onIC

BT_UART

SVC

LED

I2C

HR

M

Fing

er P

rint

SPII2C

TRX

U30

2

GPS

BA

ND

1/2

/3/5

/8/2

0G

SM

QU

AD

MM

MB

PA

PA

200

PA

PM

ICU

301

LNA

U40

2

PAM

+DP

XLT

E B

7(P

A20

1)

B1/

B2

B3

RF

PA

TH

SW

ITC

H(M

AIN

FE

MID

)F1

01

GS

M L

B T

x

GSM

HB

Tx

B1

Tx

B2

Tx

B3

Tx

B7

B20

PR

x

B1

PRx

B3 P

Rx

GSM

HB

PR

x

B5/

GS

M85

0 PR

xB

8/G

SM90

0 PR

x

Sub

FE

MF1

107

LPF

B5/

B8

GSM

LB

GS

M H

B

B5

Tx

B8

Tx

B7

TRx

B20

Tx

SAW B20

B7

PRx

B1

DR

X

SW

ITC

HU

103

Cou

pler

Cou

pler

B1 R

XS

AW

MA

IN A

NT1

MA

IN A

NT2

SU

B A

NT2

B7 R

XS

AW

SUB

AN

T1

Sw

itch

HB

LN

A(U

1100

)

Sw

itch

B1

B2

B3

B5

B8

B20

MB

LN

A(U

1103

)

LB L

NA

(U11

08)

SPD

TS

P8T

B2

DR

XB

3 D

RX

B5

DR

XB

8 D

RX

B20

DR

X

B2

PR

x

B7

DR

X

SD

SIM

Level 3 Repair

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

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

8-2

8-2. PCB Diagrams8-2-1. Main PCB Top

Level 3 Repair



8-3

8-2-2. Bottom

Level 3 Repair



8-4

8-2-3. Sub PCB Top

Level 3 Repair



8-5

8-2-4. Sub PCB Bottom

Level 3 Repair



8-6

8-3. Flow Chart of Troubleshooting

Equipments

Oscilloscope Digital Multimeter

Power Supply + driver, ESD Safe Tweezer

8960 & Spectrum Analyzer Soldering iron

Level 3 Repair



8-7

8-3-1. Power On

Mobile phone does not power on.

Check the ANT806(soldering crack, open, contact,

etc)and Check PHONE_ON_N =

low

Change the ANT806(Power-key switch) or POWER

KEY FPCB

And retry to the power-on operation.

END

No

Yes

Check the C7029(PS_HOLD) =1.8V

Yes

Check the Battery Voltage.Is it more than 3.8V?

Charging the battery by TA.

If its voltage level is extremely low(under 3.0V),

Change the battery.

check the initial operation

Abnormal

Check the Clock OSC7000Is that frequency 19.2Mhz?

1) Change the OSC7000.

Test condition (Oscilloscope setting): 20.0us.div (time division)

2) Check the output voltage of U7003

(C6071 > 1.8V, C7046 > 2.95V, C7053 >

2.95V,C7045 > 2.95V, C6030 > 0.9V)

If the output voltage is not normal, Change the

U7003.

Each voltage level has 10% margin.

No

Yes

Yes

Change the FRONT-LCD ASSY

Power-on the phone and

check the power-on sound

or motor Vibration.

Sound or Vibration is ok?

Yes

No

Check the output voltage of U7003

(C6000 >0.95V, C6106 > 0.9V, C7023 > 1.8V,

C7044 > 2.15V, C6013 > 1.8V, C7022 > 1.3V,

C7052 > 1.2V, C6004 >1.2V, C6088 > 3.075V)

If the output voltage is not normal, Change the

U7003.

Each voltage level has 10% margin.

No

Yes

Level 3 Repair



8-8

ZD805

ANT806

1 1

22

R812

PHONE_ON_N

MAIN PMIC

TP_USB7001

VREG_L9_UIM1

C7005

GN

D98

GN

D

99VREF_XO_THM

VREG_RF_CLK

90VD

D_S

7

91V

DD

_L19

92VREG_L19

93GPIO_14

94XTAL_32K_IN

95CBL_PWR_N

96G

ND

97

GN

D_X

O83

GN

D_R

F84

GN

D_X

OAD

C

85AMUX_3

86VREF_NEG_S1

87GPIO_04

88G

ND

_S1

89G

ND

_S1

9

GN

D_S

376

GN

D_S

3

77VREG_S3

78PON_RESET_N

79XTAL_32K_OUT

8VREG_XO

80AMUX_PU1

81G

ND

82

DIFF_CLK_P

69AMUX_1

7XTAL_19M_IN

70AMUX_2

71VREG_S1

72GPIO_03

73VSW_S1

74VSW_S1

75

VSW_S361

VSW_S3

62PON_11

63PS_HOLD

64KYPD_PWR_N

65AVDD_BYP

66AMUX_HW_ID

67DIFF_CLK_N

68

RF_CLK3

54RF_CLK2

55GPIO_08

56GPIO_06

57VREG_L8

58VD

D_L

8

59VD

D_S

1

6XTAL_19M_OUT

60

VDD

_S3

47VREG_L16

48REF_BYP

49G

ND

_REF

5VD

D_L

6_12

_14_

15_2

6

50RESIN_N

51VREG_LVS1

52BB_CLK1

53

VREG_L13

4VREG_L15

40VREG_L9

41GPIO_02

42VREG_S4

43G

ND

_S4

44G

ND

_S4

45VD

D_S

346

GN

D_S

5

32VREG_S5

33BB_CLK1_EN

34SLEEP_CLK

35VREG_L14

36VDD_LVS1_2

37BB_CLK2

38RF_CLK1

39

VREG_L10

25VREG_L23

26GPIO_01

27VREG_L17

28VSW_S4

29VSW_S4

3VD

D_L

16_2

5

30G

ND

_S5

31

GN

D_S

9

22VREG_LVS2

220

VDD

_S8

221VSW_S8

222

GN

D_S

8

223VREG_L1

224

VDD

_L1_

11

23VD

D_L

5_7

24

VDD

_S11

212VSW_S11

213

GN

D_S

11

214

VDD

_S10

215VSW_S10

216

GN

D_S

10

217

VDD

_S9

218VSW_S9

219

GN

D_S

920

5VD

D_S

8

206VSW_S8

207

GN

D_S

8

208

VDD

_L1_

11

209VREG_L21

21VREG_L6

210

GN

D

211

GN

D_S

11

199

VDD

_S10

2VD

D_S

5

20VREG_L26

200VSW_S10

201

GN

D_S

10

202VREG_LVS3

203VSW_S9

204

GPIO_16

191GPIO_15

192VREG_L11

193

VD

D_L

18

194

VD

D_L

21

195

VD

D_L

2_3_

4_27

196VREG_L3

197VSW_S11

198

VDD

184GPIO_10

185GPIO_09

186VDD_LVS3_4

187VREG_LVS4

188

VDD

_MSM

_IO

189GPIO_17

19VREG_L12

190

VREG_S8

177VREG_L18

178

GN

D_S

217

9G

ND

_S2

18VREG_L25

180VREG_L4

181VREG_L27

182VREG_L2

183

GPIO_21

17VSW_S5

170VREG_S10

171VREF_EBI1_DQ

172VREF_DDR

173VREF_EBI0_DQ

174GPIO_18

175MPP_07

176

VREF_NEG_S2

162MPP_06

163VSW_S2

164VSW_S2

165

GN

D_S

616

6G

ND

_S6

167VCOIN

168VREG_S11

169

GPIO_22

155VREF_NEG_S8_9_10_11

156MPP_01

157VREF_EBI1_CA

158VREF_EBI0_CA

159VREG_S9

16VSW_S5

160MPP_08

161

VREG_L22

148

VD

D_L

22

149

VDD

_S2

15VD

D_S

4

150VSW_S6

151VSW_S6

152OPT_1

153MPP_03

154

VDD

_S4

140MPP_04

141MPP_02

142GPIO_20

143GPIO_11

144AMUX_USB_ID

145VREG_S2

146MPP_05

147

VDD_MVS

133

GN

D_S

1213

4G

ND

_S12

135

VDD

_S6

136

VDD

_S6

137OPT_2

138VREF_NEG_S6

139VREG_S6

14

GPIO_13

126

GN

D12

7G

ND

128

GN

D

129AMUX_5

13V

DD

_L17

130

GN

D

131VREG_MVS

132

VSW_S12119

VSW_S12

12VREG_L20

120

GN

D_S

712

1G

ND

_S7

122SHDN_N2

123SPMI_CLK

124SPMI_DATA

125GPIO_12

111

GN

D

112DNC

113

GN

D

114VDD_SNS

115XO_THERM

116VREF_NEG_S12

117GPIO_07

118

VDD

_S12

104

VDD

_S12

105VSW_S7

106VSW_S7

107GPIO_19

108VREF_NEG_S7

109VREG_S7

11VD

D_L

9_10

_13_

20_2

3_24

110

1VD

D_S

5

10VREG_L24

100AMUX_4

101VREG_S12

102GPIO_05

103

L7003

U7003

VREG_L24_3P075

VREG_L15_2P05

VREG_L8_1P8

VREG_KRAIT_0P9

R7001

VREG_S3_1P3

C7059

C7006

C70

01

C7023

VREG_L8_1P8

VF_1P8

R70

17

VREG_XO

CAM_AF_2P8

C7010

L7000

L7006

R70

10

VREG_S6_0P9

VPH_PWR

C71

08

C70

51

TP_7000

VREG_L13_2P95

C7011

CAM_DVDD_1P2

VREG_L19_3P3

C71

07

VREG_S7_0P9

L7005

VCC_1.8V_LCD

L7012

L7008

VREG_S4_1P8

V_TSP_IO_1P8

VREG_L1_1P2

C7012

R7023

D7000

C7060

C70

53

L7009

C70

52

C7025

VREG_L2_1P2

C70

54

VREG_S5_2P15

VDD_VIB_3P0

VREG_L4_1P225

L7004

VREG_L18_2P85

C70

47

R7024

VREG_L22_3P0

C7015

VREG_L1_1P2_WO_DDR

R7019

VPH_PWR

C7038

VREG_L6_1P8

L7002

C7026

R7004

R7011

C70

42

VREG_S1_0P95

L7001

C7008

L7007

VPH_PWR

L7010

VREG_L14_1P8

R7000

VREG_L20_2P95

C7014

C7004

D7001

C70

02

VREG_S2_0P9

C70

50

C7058

R70

14

C70

49

C7000

C7041

R70

15

2

4 3

1

OSC7000

C70

44

C7009

C70

03

VREG_S5_2P15

VREG_L16_2P7

VREG_S2_0P9

BAT7000

C70

45

C7029

D7002

C7007

C70

34

R70

13

VREG_L21_2P95

TP_USB7000

C7022

PM8974_L10

R70

12

C70

46

VREG_L12_1P8

C7013

VPH_PWR

VOL_DOWN

VOL_DOWN

COMP_EN

COMPANION_RSTN

VF

SLEEP_CLK_WIFI

CRESET_B

PA_THERM0

XO_OUT_D0_USBXO_OUT_D0_CXO

NFC_EN

MAIN_CAM_RST

CLK_REQ

HRM_INTFLASH_LED_EN

EAR_DETFUEL_ALERT_N

TSP_INTMICBIAS_EN_MSMTOUCH_INT

HALL_SENSOR_INT

ERR_FG

LCD_1P8_EN

GND_S11

GND_S12

VREG_RF_CLK

VREG_XO

GND_XOADC

PMC_OPTION2PMC_OPTION1

GND_REF_PMC49

DIVCLK1_CODEC

VOL_UP

OK_SW

MLCD_RST

VSENSE_S1_M

GN

D_S

1

VREG_RF_CLK

GND_S1

GND_S2

GND_S3

GND_S4

GND_S5

GND_S6

GND_S7

GND_S8

GND_S9

GND_S10

WTR_XO_IN

GN

D_S

4

GN

D_R

EF_P

MC

49

VREG_LVS1_1P8

VSENSE_S1_P

GN

D_S

3

PMC8974_PON_RESET_N

VREG_S3_1P3

GN

D_S

11

GN

D_S

10

GN

D_S

9

GN

D_S

8

VREG_S5_2P15

GN

D_S

5

VSENSE_S6_M

VSENSE_S6_P

VSENSE_S2_P

VSENSE_KRAIT_M

VREF_EBI1_CA

VREF_EBI0_CA

VSENSE_KRAIT_P

VSENSE_S2_M

GN

D_S

6

VREF_EBI1_DQ

VREF_EBI0_DQ

GN

D_S

2

VREG_S4_1P8

VREG_S4_1P8

FLASH_LED_SET

USB3.0_CLK_MUSB3.0_CLK_P

VSENSE_S2_P

VSENSE_S7_M

VSENSE_S7_P

VREG_BOOST_BYPASS

VPH_PWR

VSENSE_S2_M

GN

D_S

7

GN

D_S

12

TXDAC0_VREF

GND_XOADC

GN

D_X

OAD

C

19M_OUT

19M_IN

EAR_ADC_3.5

BATT_THERM

MSM_PS_HOLD

MHL_RST

CHG_DET

19M_OUT

SDC_UIM_VBIAS

PMIC_SPMI_CLKPMIC_SPMI_DATA

PHONE_ON_N

MSM_THERM

JIG_ON_N

19M_IN

XO_OUT_D0_EN

GND_XOADC

XO_OUT_D1

SLEEP_CLK

95

78

62

63

64

50

156

152

141

137

122

123

124

D7000

VPH_PWR

D7001

C7029


PMC8974_PON_RESET_N

MSM_PS_HOLDCHG_DET

SDC_UIM_VBIAS


PHONE_ON_NJIG_ON_N

2

4 3

1

OSC7000

GND_XOADC

19M_OUT

19M_IN

Level 3 Repair



8-9

8-3-2. Initial

Initial Failure

END

Yes

Re Check "8-3-1 Power on"Trouble shooting process

Check the OSC7000 (Crack, open etc.)Check the U7003 (Crack etc)

Abnormal

Normal

Re-download latest SW on themobile phone.

Change UME6000

Abnormal

Abnormal

Change PBA

Level 3 Repair



8-10

8-3-3. No Service

No service

END

Check the voltage levelC6000 = 0.95VC6069 = 0.9VC6035 = 0.9VC6037 = 0.9V

Yes

Replace the U7003

Yes

Check OSC7000Frequency = 19.2MHz Replace the OSC7000

Yes

No

No

Check menu setting

Menu applications setting network connections more networks mobile networks network mode setting is auto

connect ?

Check the connection of RF coaxial cable

Replace UCP500

CP : G900FXXXX

CP : unknown

Home screen Phone Keypad *#1234# check Phone version CP : G900FXXXX or unknown

Yes

Level 3 Repair



8-11

MAIN PMIC

VREF_XO_THM

90VD

D_S

7

91V

DD

_L19

XTAL_32K_IN

CBL_PWR_N

77VREG_S3

PON_RESET_N

XTAL_32K_OUT

DIFF_CLK_P

XTAL_19M_IN

71VREG_S1

73VSW_S1

74VSW_S1

VSW_S361

VSW_S3

PON_11

PS_HOLD

KYPD_PWR_N

65AVDD_BYP

DIFF_CLK_N

RF_CLK3

RF_CLK2

58V

DD

_L8

59VD

D_S

1

XTAL_19M_OUT

60

VDD

_S3

5V

DD

_L6_

12_1

4_15

_26

RESIN_N

BB_CLK1

42VREG_S4

45VD

D_S

346

32VREG_S5

BB_CLK1_EN

SLEEP_CLK

BB_CLK2

RF_CLK1

28VSW_S4

29VSW_S4

3V

DD

_L16

_25

220

VDD

_S8

221VSW_S8

224

VDD

_L1_

11

23V

DD

_L5_

7

VD

D_S

11

212VSW_S11

214

VD

D_S

10

215VSW_S10

217

VDD

_S9

218VSW_S9

205

VDD

_S8

206VSW_S8

208

VDD

_L1_

11

211

199

VD

D_S

10

2VD

D_S

5

200VSW_S10

203VSW_S9

193

VD

D_L

18

194

VD

D_L

21

195

VD

D_L

2_3_

4_27

197VSW_S11

VDD

188

VD

D_M

SM

_IO

VREG_S818

3

17VSW_S5

170VREG_S10

VREF_EBI1_DQ

VREF_DDR

VREF_EBI0_DQ

176

163VSW_S2

164VSW_S2

167VCOIN

168VREG_S11

MPP_01

VREF_EBI1_CA

VREF_EBI0_CA

159VREG_S9

16VSW_S5

148

VD

D_L

22

149

VDD

_S2

15VD

D_S

4

150VSW_S6

151VSW_S6

OPT_1

MPP_03

VDD

_S4

MPP_04

MPP_02

145VREG_S2

MPP_05

135

VDD

_S6

136

VDD

_S6

OPT_2

139VREG_S6

1413V

DD

_L17

VSW_S12119

VSW_S12

SHDN_N2

SPMI_CLK

SPMI_DATA

114VDD_SNS

118

VD

D_S

1210

4V

DD

_S12

105VSW_S7

106VSW_S7

109VREG_S7

11VD

D_L

9_10

_13_

20_2

3_24

1VD

D_S

5

103

L7003

VREG_KRAIT_0P9

VREG_S3_1P3

C70

01

C7023

L7000

L7006

VREG_S6_0P9

VPH_PWR

VREG_S7_0P9

L7005

L7012

L7008

VREG_S4_1P8

L7009

C7025

L7004

C7015

L7002

VREG_S1_0P95

L7001

L7007

L7010C

7002

VREG_S2_0P9

C70

03

VREG_S5_2P15

VREG_S2_0P9

BAT7000

C7022

VPH_PWR

VSENSE_S1_P

VREG_S3_1P3VREG_S5_2P15

VSENSE_S6_P

VSENSE_S2_P

VSENSE_KRAIT_P

VREG_S4_1P8

VSENSE_S7_P

VREG_BOOST_BYPASS

VPH_PWR

U7003

2

4 3

1

OSC7000

GND_XOADC

19M_OUT

19M_IN

Level 3 Repair



8-12

8-3-4. Sim Part

Insert SIM card

Is SIM/SD socket ok?

Yes

Yes

No

END

Check the SIM Voltage.(C6079 or C7077, C7078 )

>= 1.8 or 3.0?

Replace SIM/SD socket.

Change to the new SIM card.

If it doesn`t still work SIM card after changing

the SIM card, Check the UCP500 (Crack etc)

Yes

No

Level 3 Repair



8-13

8-3-5. Charging Part

.

OVLOC1

C2IN

INC3

C4

GN

D

_EN\A1

A2OUT

OUTA3

A4G

ND

VBUSDETB1

B2OUT

INB3

B4G

ND

U901

NC1

2NCC

934

C93

5

L910

CHG_IN_5VV_BUS_5V

C93

6

C93

3

OVP_EN_N

VBUS_DET

TA / USB Insert

Yes

END

Charging Sequence StartV_BUS_5V = 5V

No Check L910 = 5V,or may not connected TA / USB

Yes

Check the CHG_IN_5V(C7020)=5VNo

Resolder and Replace U901

Yes

Battery is Charging?No

Resolder or Replace U7000

Yes

Level 3 Repair



8-14

C70

27C

7031

C7033

VPH_PWR

C7018

R70

16

CHG_IN_5V

C7040

VDD_VIB_3P0

C7024

R7021

C7035

VPH_PWR

VREG_S4_1P8

CHG_IN_5V

R7018

C7037

C70

30

C7036

VPH_PWR

R70

25

WPC_5V

C70

19

L7011

C70

55

J2

SYSJ3

SYSJ4

BATT

J5

BATT

J6

ALRTBJ7

GN

DFG

J8

MDPJ9

H4

BATT

H5

BATT

H6

QSTRTH7

BATT

_FG

H8

IN_MOTH9

NCJ1

NCJ10

CHGPG

G6

SCLFGG7

VCELLG8

MGAING9

CHGPGH1

MDNH10

BAT

_SN

H2

BAT

_SP

H3

SYS

F8

SCLF9

CHGLXG1

MPWMG10

AVLG2

OVPENBG3

GN

D_A

G4

GN

D_A

G5

SDA

F1

GN

DM

F10

INOKBF2

DETBATBF3

SYS_AF4

SYS_AF5

VIOF6

SDAFGF7

EO

E2

WCINOKBE3

GN

D_Q

E4

E5VBUSDET

GN

D_D

E6

AUT1E7

UT1E8

MV

BUS

E9

CHGLX

D4MRST1B

D5

RESETBD6

AUR2D7

D8UR2

IDBD9

BYPE1

SL1E10

BYP

C6

MVB

ATC

7MIC_USB

C8

BCC9

CHGIND1

SR2D10

CHGIND2

BYP_WD3

INTB

B8

UIDB9

CHGINC1

COMP2C10

BYP_WC2

BYP_WC3

GN

D

C4

GN

D

C5

JIG

WCINB1

COMN1B10

WCINB2

GN

D

B3

GN

D

B4

TORCHENB5

FLASHENB6

ADN1B7

MVI

O

A2

SAFEOUT2A3

GN

D

A4

FLED1A5

FLED1A6

ADP2A7

DN1A8

DP2A9

U7000

1MARK

2MARK

NCA1

NCA10

SAFEOUT1

V_BAT

VREG_S4_1P8

LED7000

C70

16

C7032

C70

20

C70

28

R70

48

VREG_S4_1P8

VREG_S4_1P8

C70

17

C70

21

MOTOR_N

V_BATTERY_SENSE

UART_RXD

VBUS_DET

UART_TXD

VBUS_DET

PM_SYS_PWR

FUEL_SDA_1.8V

OVP_EN_N

FUEL_SCL_1.8V

V_BATTERY_SENSE

VBA

TGN

D_S

EN

SE

V_B

ATTE

RY

_SEN

SE

FUEL_ALERT_N

USB_VBUS_MSM_4.9V

USB_HS_DMUSB_HS_DP

MUIC_DM

MUIC_ID

MUIC_DP

JIG_ON_N

PM_SYS_PWR

FLASH_LED_SETFLASH_LED_EN

IF_PMIC_RESET_N

MUSB_INT

PHONE_ON_N

CHG_DETVF_DETB

IF_PMIC_SCL_1.8V

VIB_PWM

IF_PMIC_SDA_1.8V

PM_SYS_PWR

MOTOR_P

JTAG_TXD

JTAG_RXD

JTAG_IF_CON_SENSE

Level 3 Repair



8-15

8-3-6. OTG

OTG does not work

Yes

NoCheck U7000CheckCHG_IN_5V(C7020)=5V

Yes

END

Yes

NoCheck U901Check V_BUS_5V(L910) =5V

Yes

Change the board

Level 3 Repair



8-16

.

OVLOC1

C2IN

INC3

C4

GN

D

_EN\A1

A2OUT

OUTA3

A4G

ND

VBUSDETB1

B2OUT

INB3

B4G

ND

U901

NC1

2NCC

934

C93

5

L910

CHG_IN_5VV_BUS_5V

C93

6

C93

3

OVP_EN_N

VBUS_DET

C70

27C

7031

C7033

VPH_PWR

C7018

R70

16

CHG_IN_5V

C7040

VDD_VIB_3P0

C7024

R7021

C7035

VPH_PWR

VREG_S4_1P8

CHG_IN_5V

R7018

C7037

C70

30

C7036

VPH_PWR

R70

25

WPC_5V

C70

19

L7011

C70

55

J2

SYSJ3

SYSJ4

BATT

J5

BATT

J6

ALRTBJ7

GN

DFG

J8

MDPJ9

H4

BATT

H5

BATT

H6

QSTRTH7

BATT

_FG

H8

IN_MOTH9

NCJ1

NCJ10

CHGPG

G6

SCLFGG7

VCELLG8

MGAING9

CHGPGH1

MDNH10

BAT

_SN

H2

BAT

_SP

H3

SYS

F8

SCLF9

CHGLXG1

MPWMG10

AVLG2

OVPENBG3

GN

D_A

G4

GN

D_A

G5

SDA

F1

GN

DM

F10

INOKBF2

DETBATBF3

SYS_AF4

SYS_AF5

VIOF6

SDAFGF7

EO

E2

WCINOKBE3

GN

D_Q

E4

E5VBUSDET

GN

D_D

E6

AUT1E7

UT1E8

MV

BUS

E9

CHGLX

D4MRST1B

D5

RESETBD6

AUR2D7

D8UR2

IDBD9

BYPE1

SL1E10

BYP

C6

MVB

ATC

7

MIC_USBC8

BCC9

CHGIND1

SR2D10

CHGIND2

BYP_WD3

INTB

B8

UIDB9

CHGINC1

COMP2C10

BYP_WC2

BYP_WC3

GN

D

C4

GN

D

C5

JIG

WCINB1

COMN1B10

WCINB2

GN

D

B3

GN

D

B4

TORCHENB5

FLASHENB6

ADN1B7

MVI

O

A2

SAFEOUT2A3

GN

D

A4

FLED1A5

FLED1A6

ADP2A7

DN1A8

DP2A9

U7000

1MARK

2MARK

NCA1

NCA10

SAFEOUT1

V_BAT

VREG_S4_1P8

LED7000

C70

16

C7032

C70

20

C70

28

R70

48

VREG_S4_1P8

VREG_S4_1P8

C70

17

C70

21

MOTOR_N

V_BATTERY_SENSE

UART_RXD

VBUS_DET

UART_TXD

VBUS_DET

PM_SYS_PWR

FUEL_SDA_1.8V

OVP_EN_N

FUEL_SCL_1.8V

V_BATTERY_SENSE

VBA

TGN

D_S

EN

SE

V_B

ATTE

RY

_SEN

SE

FUEL_ALERT_N

USB_VBUS_MSM_4.9V

USB_HS_DMUSB_HS_DP

MUIC_DM

MUIC_ID

MUIC_DP

JIG_ON_N

PM_SYS_PWR


IF_PMIC_RESET_N

MUSB_INT

PHONE_ON_N

CHG_DETVF_DETB

IF_PMIC_SCL_1.8V

VIB_PWM

IF_PMIC_SDA_1.8V

PM_SYS_PWR

MOTOR_P

JTAG_TXD

JTAG_RXD

JTAG_IF_CON_SENSE

Level 3 Repair



8-17

8-3-7. Sensor

Sensor does not work

Yes

NoReplace OSC400Check OSC400Frequency = 32.768khz ?

Yes

END

Yes

No Replace U403Check R504, R505, R507,

R509 (I2C is OK?)

Yes

Replace Sensor IC

Level 3 Repair



8-18

Level 3 Repair



8-19

8-3-8-1 Microphone Part - Main MIC

VDD_SWITCH_2P7

C94

4

L915L916

C94

6

C951

C94

3

C94

5

ZD90

9

I|O1 1 I|O22

3 GND

ZD90

4

L912

VREG_S4_1P8MAIN_MICBIAS_1P8

ZD90

5

ZD91

2

C952

R91

4

R911

VREG_S4_1P8

V_BAT

C94

2

C93

8

R91

5

VTOUCH_1P8

ZD90

7

R909

VREG_L19_3P3

C93

9

L913

L911

64

ZD90

6

6

6060

7 7 8 89 9

NC

61

NC

62N

C63

NC

5353 545455 55 5656

5757 58585959

6

45 46464747 48484949

5 5

50 505151 5252

3839 39

4 4

40404141 42424343 444445

3031 31 32 3233 33 34 3435 35 36 3637 37 38

24 24

2525 26262727 28282929

3 3

30

1617 17 18 1819 19

2 2

20 20

2121 22 2223 23

1 1

10 1011 11 12 1213 13 14 1415 15 16

HDC903

V_BUS_5V

R91

3

V_BUS_5V

C93

7

EN3

4OUT

5G

ND

U907

1IN

GN

D2

R912

R910

V_BATTERY

USB3.0_REDRIVER_EN

MAIN_MIC_DATA_CONNMAIN_MIC_CLK_CONN

RFFE2_CLKRFFE2_DATA

USB3.0_SSRX_PUSB3.0_SSRX_M

SPK_OUT_NSPK_OUT_P

OK_SW

BATT_THERMTOUCH_INT

HALL_SENSOR_INT

TOUCH_I2C_SCL

TA_TOUCH_SENSETOUCH_I2C_SDA ANT_SWITCH_SEL_1

USB3.0_SSTX_PUSB3.0_SSTX_M

MUIC_DP_JTAG

MHL_DPMHL_DM

MHL_ID

JTAG_USB_IDMUIC_ID

MUIC_DMMUIC_DP

MUIC_DM_JTAG

Check sub boardconnection(HDC903) Set the HDC903 connection

END

No

Yes

Yes

Check main microphone function

in voice call Handset mode or voice recorder mode

Check the voltage atC825 = 1.8V resolder or replace U805

No

Yes

Level 3 Repair



8-20

GN

D5

GND 2

4 VDD 1VOUT

U805

3 CE

MAIN_MICBIAS_1P8

C825

VREG_S4_1P8

VPH_PWR

R806

C824

Level 3 Repair



8-21

8-3-8-2. Microphone Part - Sub(2nd) MIC

ZD80

0

ZD80

1

1

GND3

SEL2

SEL

VDD5

VDD

MIC801

CLK4

DATADATA

SUB_MICBIAS_1P8

C8

30

SUB_MIC_CLK

SUB_MIC_DATA

Check PCB where Sub MIC(MIC801) is placed

for any damageReplace the PCB module

END

No

Yes

Yes

Check Sub(2nd) microphone function

in voice call loudSPK NS Off mode

or in camcording mode

Check the voltage atC830 = 1.8V resolder or replace U804

No

Yes

Level 3 Repair



8-22

C823

C817

C84

2

C814

C819

C813

C815

R803C810

NC

86

9SPKR_DRVM

78NCP_C1M

79MIC1_INP

8SPKR_DRVP

80LINE_OUT1

81EAROM

82HPH_RM

83NCP_VNEG

84G

ND

_BU

CK

NC

85

70LINE_OUT4

71BUCK_VOUT1

72NCP_C1P

73MIC_BIAS1

74MIC1_INM

75LINE_OUT3

76EAROP

77HPH_LP

63MICB_CFILT1

64V

DD

_RX

65HPH_REF

66G

ND

_BU

CK

67MICB_CFILT2

68MIC2_INM

69LINE_OUT2

7G

ND

_SPK

DR

V

56MIC4_INM

57MIC3_INM

58G

ND

59BUCK_VOUT2

6G

ND

VDD

_BU

CK

60

61MIC_BIAS2

62MIC4_INP

49G

ND

5TX_I2S_SCK

50MIC2_INP

51LDO_HI_CAP

52G

ND

_CC

OM

P

53G

ND

54BUCK_VSW

55VD

D_T

X

41TX_I2S_WS

42DMIC0_DATA

43MIC3_INP

44V

DD

_VB

AT

45MCLK

46RESET_N

47VD

D_D

IG2

48MODE0

34

35G

ND

36DMIC0_CLK

37MIC_BIAS4

38MIC6_INP

39CCOMP

4G

ND

_SPK

DR

V

40MODE1

27G

ND

28RF_PA_ON

29VD

D_D

IG1

3VD

D_S

PKD

R1

30DMIC2_DATA|TX_I2S_SD1

31MBHC_HSDET

32MIC6_INM

33INTR2|I2C_SDA

RX_I2S_WS

2G

ND

_SPK

DR

V20

VD

D_T

XAD

C

SPKR_VSNSM21

22I2C_SCL|GND

23DMIC2_CLK|TX_I2S_SD2

24VD

D_I

O

25MIC_BIAS3

26MIC5_INM

12SLIMBUS_DATA|RX_I2S_SD2

13MICB_CFILT3

14SPKR_VSNSP

15VD

D_S

PKD

R2

16INTR1

17DMIC1_DATA

18SLIMBUS_CLK|RX_I2S_SD1

19MIC5_INP

U804

1G

ND

_SPK

DR

V

10RX_I2S_SCK

11DMIC1_CLK

VPH_PWR

VREG_S5_2P15

C827

C809

C818

C820

VREG_S4_1P8

C841

5

GN

D GND2

VDD4 VOUT 1

U802

CE3

Codec_VDD_3.3V

C808

Codec_VDD_3.3V

VPH_PWR

VREG_L1_1P2_WO_DDR

L801

C816

SUB_MICBIAS_1P8

SPK_GND

SUB_MIC_CLK

MAIN_MIC_CLK

EAROUT_LEAROUT_R

CODEC_RESET_N

CODEC_INT1_N

CODEC_INT2_N

EAR_MIC_NEAR_MIC_P

RCV_NRCV_P

BUCK_GND

BUCK_GND

BUCK_GND

BUCK_GND

SPK_GND

SLIMBUS_DATA

SPK_OUT_P

SLIMBUS_CLK

SPK_OUT_N

MAIN_MIC_DATA

SUB_MIC_DATA

DIVCLK1_CODEC

HPH_REF

Level 3 Repair



8-23

Level 3 Repair



8-24

8-3-9. Speaker Part

VDD_SWITCH_2P7

C94

4

L915L916

C94

6

C951

C94

3

C94

5

ZD90

9

I|O1 1 I|O22

3 GND

ZD90

4

L912

VREG_S4_1P8MAIN_MICBIAS_1P8

ZD90

5

ZD91

2

C952

R91

4

R911

VREG_S4_1P8

V_BAT

C94

2

C93

8

R91

5

VTOUCH_1P8

ZD90

7

R909

VREG_L19_3P3

C93

9

L913

L911

64

ZD90

6

6

6060

7 7 8 89 9

NC

61

NC

62N

C63

NC

5353 545455 55 5656

5757 58585959

6

45 46464747 48484949

5 5

50 505151 5252

3839 39

4 4

40404141 42424343 444445

3031 31 32 3233 33 34 3435 35 36 3637 37 38

24 24

2525 26262727 28282929

3 3

30

1617 17 18 1819 19

2 2

20 20

2121 22 2223 23

1 1

10 1011 11 12 1213 13 14 1415 15 16

HDC903

V_BUS_5V

R91

3

V_BUS_5V

C93

7

EN3

4OUT

5G

ND

U907

1IN

GN

D2

R912

R910

V_BATTERY

USB3.0_REDRIVER_EN

MAIN_MIC_DATA_CONNMAIN_MIC_CLK_CONN

RFFE2_CLKRFFE2_DATA

USB3.0_SSRX_PUSB3.0_SSRX_M

SPK_OUT_NSPK_OUT_P

OK_SW

BATT_THERMTOUCH_INT

HALL_SENSOR_INT

TOUCH_I2C_SCL

TA_TOUCH_SENSETOUCH_I2C_SDA ANT_SWITCH_SEL_1

USB3.0_SSTX_PUSB3.0_SSTX_M

MUIC_DP_JTAG

MHL_DPMHL_DM

MHL_ID

JTAG_USB_IDMUIC_ID

MUIC_DMMUIC_DP

MUIC_DM_JTAG

Check speaker function.

Play MP3 with maximum volume level.

END

Yes

Replace the speaker

Yes

Check the connection ofHDC903

Yes

NoReconnect HDC903

Level 3 Repair



8-25

Level 3 Repair



8-26

8-3-10. Receiver Part

L808 L807

V80

0

ANT815

11

2 2

V80

1

ANT816

1 1

22RCV_NRCV_P

Check PCB where L807 /L808 is placedfor any damage

Check receiver function

in voice call receiver mode.

NoResolder or replace L807 / L808

Yes

Yes

Check RCV module whereRCV's placed

for any damage

Yes

NoReplace the RCV module

Check the signals on

V800, V801

NoResolder or replace U804

END

Yes

Level 3 Repair



8-27

C823

C817

C84

2

C814

C819

C813

C815

R803C810

NC

86

9SPKR_DRVM

78NCP_C1M

79MIC1_INP

8SPKR_DRVP

80LINE_OUT1

81EAROM

82HPH_RM

83NCP_VNEG

84G

ND

_BU

CK

NC

85

70LINE_OUT4

71BUCK_VOUT1

72NCP_C1P

73MIC_BIAS1

74MIC1_INM

75LINE_OUT3

76EAROP

77HPH_LP

63MICB_CFILT1

64V

DD

_RX

65HPH_REF

66G

ND

_BU

CK

67MICB_CFILT2

68MIC2_INM

69LINE_OUT2

7G

ND

_SP

KD

RV

56MIC4_INM

57MIC3_INM

58G

ND

59BUCK_VOUT2

6G

ND

VD

D_B

UC

K60

61MIC_BIAS2

62MIC4_INP

49G

ND

5TX_I2S_SCK

50MIC2_INP

51LDO_HI_CAP

52G

ND

_CC

OM

P

53G

ND

54BUCK_VSW

55V

DD

_TX

41TX_I2S_WS

42DMIC0_DATA

43MIC3_INP

44V

DD

_VB

AT

45MCLK

46RESET_N

47V

DD

_DIG

2

48MODE0

34

35G

ND

36DMIC0_CLK

37MIC_BIAS4

38MIC6_INP

39CCOMP

4G

ND

_SP

KD

RV

40MODE1

27G

ND

28RF_PA_ON

29V

DD

_DIG

1

3V

DD

_SP

KD

R1

30DMIC2_DATA|TX_I2S_SD1

31MBHC_HSDET

32MIC6_INM

33INTR2|I2C_SDA

RX_I2S_WS

2G

ND

_SP

KD

RV

20V

DD

_TX

AD

C

SPKR_VSNSM21

22I2C_SCL|GND

23DMIC2_CLK|TX_I2S_SD2

24V

DD

_IO

25MIC_BIAS3

26MIC5_INM

12SLIMBUS_DATA|RX_I2S_SD2

13MICB_CFILT3

14SPKR_VSNSP

15V

DD

_SP

KD

R2

16INTR1

17DMIC1_DATA

18SLIMBUS_CLK|RX_I2S_SD1

19MIC5_INP

U804

1G

ND

_SP

KD

RV

10RX_I2S_SCK

11DMIC1_CLK

VPH_PWR

VREG_S5_2P15

C827

C809

C818

C820

VREG_S4_1P8

C841

5

GN

D GND2

VDD4 VOUT 1

U802

CE3

Codec_VDD_3.3V

C808

Codec_VDD_3.3V

VPH_PWR

VREG_L1_1P2_WO_DDR

L801

C816

SUB_MICBIAS_1P8

SPK_GND

SUB_MIC_CLK

MAIN_MIC_CLK

EAROUT_LEAROUT_R

CODEC_RESET_N

CODEC_INT1_N

CODEC_INT2_N

EAR_MIC_NEAR_MIC_P

RCV_NRCV_P

BUCK_GND

BUCK_GND

BUCK_GND

BUCK_GND

SPK_GND

SLIMBUS_DATA

SPK_OUT_P

SLIMBUS_CLK

SPK_OUT_N

MAIN_MIC_DATA

SUB_MIC_DATA

DIVCLK1_CODEC

HPH_REF

Level 3 Repair



8-28

Level 3 Repair



8-29

8-3-11. BT/WIFI

Check the Status ofL417, L418, C425, C429

BT/WiFi is not working

Check BT or WiFi functionON

NoEnable BT or WiFi Function

Yes

END

Check the Voltage on C427 =1.8V

No Check the U7003(crack, open, damaged, etc.)

Yes

Check the Voltage on C428 =1.3V

NoResolder or change the L410

Yes

Check the Status ofANT401 ANT402 C413 C414

C419 C420

No Resolder or Replace ANT401 ANT402 C413C414 C419 C420

Yes


Yes

Yes

No Resolder or change the L417, L418, C425,C429

Yes

Level 3 Repair



8-30

L411

R41

3

6.3V

C42

8 10V

C42

3

TP407

R418

L414

TP413

TP425

5

G

6

MARK

RX_TX1

F401

ANT 4

2

G

3

G

L409

TP409

R41

5

L412

TP412

C42

710

V

R41

6

ANT 4

2

G

3

G

5

G

6

MARK

RX_TX1

TP428

F400

L413

TP430

L408

VREG_S4_1P8

L417

ANT401

11

2 2

TP410

R41

4

TP414

TP411

L410

11

2 2

ANT402

25V

C414

TP408

25V

C419

VBAT_WIFI

TP418

TP424

10V

C42

4 C425

25V

R41

2

TP417

25V

C413

TP427

25V

C420

VREG_S4_1P8

TP429

R417

C429

25V

TP415

L419

TP426

T9BT_DEV_WAKE

T11

GN

D

T2SR

_VLX

T3G

ND

T4SDIO_CLK

T5SDIO_CMD

T6SDIO_DATA0

T7G

ND

T8EXT_LPO

S4G

ND

S5SDIO_DATA1

S6SDIO_DATA2

S7SDIO_DATA3

S8G

ND

S9BT_HOST_WAKE

T1G

ND

T10BT_PCM_IN

Q11BT_UART_RTS

R1

GN

D

R11BT_PCM_OUT

S1VI

N_L

DO

S10BT_PCM_CLK

S11BT_PCM_SYNC

S2G

ND

S3W

L_R

EG

_ON

L11

BT_R

EG_O

N

M1

VBAT

_LD

O

M11BT_UART_TXD

N1

VBAT

_LD

O

N11BT_UART_RXD

P1G

ND

P11BT_UART_CTS

Q1

VBA

T_SR

H1WL_HOST_WAKE

H11

GN

DJ1

GN

D

J11FM_AOUT1

K1VI

O

K11FM_AOUT2

L1G

ND

C11

GN

D

D1GPIO_4

D11

GN

D

E1GPIO_5

E11

Ext-F

ilter

-2G

_FEM

_CO

RE

0GPIO_2

F1

F11

GN

D

G1GPIO_3

G11FM-RFIN

B4GPIO_14

B5G

ND

B6GPIO_15

B7GPIO_11

B8BT_I2S_WS

B9G

ND

C1

GN

D

A6G

ND

A7BT_I2S_DO

A8BT_I2S_CLK

A9G

ND

B1AN

T_C

OR

E1

B10

GN

D

Dip

-Ext

-Filt

er_C

OR

E0B1

1

B2G

ND

B3GPIO_6

A1G

ND

A10

ANT_

CO

RE0

A11

GN

D

A2D

ip-E

xt_l

ter_

CO

RE1

A3G

ND

A4G

ND

Ext-F

ilter

-2G

_FEM

_CO

RE1

A5

U405

1M

ARK

2M

ARK

L418

BT_HOST_WAKEWLAN_SDIO_CLK

WLAN_COEX_RXWLAN_COEX_TX

BT_UART_RXDBT_UART_TXD

BT_UART_RTSBT_UART_CTS

BT_PCM_SYNCBT_PCM_CLK

BT_PCM_INBT_PCM_OUT

WLA

N_E

NBT_WAKE

BT_

EN

WLAN_HOST_WAKE

SLEEP_CLK_WIFI

WLAN_SDIO_D(0)

WLAN_SDIO_D(3)WLAN_SDIO_D(2)

WLAN_SDIO_CMD

WLAN_SDIO_D(1)

Level 3 Repair



8-31

8-3-12. GPS

Yes

Enable GPS Function in the setting.No

Check GPS function ON

Yes

Check the Antenna connectANT400(crack,open,etc)

No 1. Resolder or Replace ANT4002. Replace REAR

Yes

Resolder or change the wrong element(open, crack, deviation, etc)

NoCheck(crack,open,etc)C404, L404, C402, L402, L405

Yes

Check U7003, OSC7000, C307(short, open, crack, etc.)

NoCheck 19.2MHz Clock atC308

Yes

Yes

END

GPS is not working

Check the voltage onC406=2.8V

Check PMIC(U7003)(short, open, crack, etc.)

No

Yes

Check if GPS_EN at C405 is1.8V

Check UCP500(short, open, crack, etc.)

No

Resolder or change U302

Level 3 Repair



8-32

11

2 2

ANT400

C40

9

VCC3AO4 GNDRF

5AI

6 PON

U402

1GND

2

L402

L400

L401

F403

G

2

G

3

G

5

1IN

NC64OUT

C402

25V

C407L407 L405

C46

5

25V

C404

25V

C405

10V

C406

L406

3BAL

4BAL

2

G G

5

6NC

UNBAL1

F402

VREG_L16_2P7

L404

C408

GPS_LNA_EN

GPS_RF_P

GPS_RF_M

Level 3 Repair



8-33

8-3-13. NFC

NFC is not working

Check NFC function ONNo

Enable NFC Function

Yes

END

Check the Voltage onR419 = 1.8V

No Check the U7003(crack, open, damaged, etc.)

Yes

Check the Status of C445, C461,L415, L416, R424, R426, R427,

R428

No Resolder or Replace L209, L210, C254, C260,C251, C261

Yes


Yes

Yes

NoCheck U7003 or OSC7000

Yes

Check 19.2MHz Clock atR7004

Check the batteryNo Check the battery (wrong, damage etc)

(NFC Antenna is in battery)

Yes

Level 3 Repair



8-34

C460

TP421

SM

X_R

STN

SM

X_C

LK

NFC_SIMVCC

C44

310

V

C453

25V

VPH_PWR

R427

5%

R41

9

TP422

PWR_REQ

ES

E_D

WP

M_D

BG

ES

E_D

WP

S_D

BG

10V

C462

G2

S1

Q400

3D

10VC446

L415

5%

R43

5

25VC461

10VC459

10V

C464

10VC458

C463

10V

VREG_S4_1P8

C44

210

V

5%R426

R428

C454

C456

25V

VREG_L9_UIM1

25V

C452

1%R423

CLK_REQ

L416

16VC449

25VC445

16VC455

1%R424

G4

TVSS

G5TX2

G6ANT2

G7ANT1

F3VS

S4F4

SMX_

7816

F5RXN

F6RXP

F7VMID

G1VBAT2

G2VUP

G3TX1

E2D

CD

C_V

SS

E3R

FU3

E4R

FU4

E5R

FU1

E6R

FU5

E7TVDD

F1SAP_DCDC

F2SAM_DCDC

D1IRQ

D2I2CADR1_SPIMOSI

D3PVDD

D4

VSS2

D5

SWIO

_SE

D6

VSS3

D7VDHF

E1VEN

B7S

VDD

C1I2CSDA_SPIMISO

C2

PVSS

C3XTAL2

C4

VSS

C5

RFU

2C6

VDD

C7VBAT

A6SI

GO

UT_

DW

P_

A7SI

GIN

_DW

P_

B1I2CSCL_SPISCK

B2I2CADR0_SPINSS

B3PWR_REQ

B4E

XT_S

W_C

TRL

B5PM

UVC

C

B6VS

S1

1M

ARK

2M

ARK

A1DWL_REQ

A2CLK_REQ

A3XTAL1

A4SW

IO_U

ICC

A5S

IMVC

CU410

C476

25V

VPH_PWR

NFC_SWP

NFC_ANT_2

NFC_ANT_1

NFC_I2C_SCLNFC_I2C_SDA

NFC_IRQNFC_EN

CLK_REQNFC_FIRMWARE

UIM1_DATA

XO_OUT_D1

Level 3 Repair



8-35

8-3-14. LCD

LCD is still off after PWR ON

Yes

NoReconnect the HDC902Check the connection ofHDC 902

END

No

Resolder or Replace the PMIC(U7003)

Yes

CheckVCC_3.0V_LCD=3.0V(C906),

Yes

Yes

Replace LCDModule

Yes

CheckELVDD_4.6V=4.6V(C920)

ELVSS_-4.V=-1.4~-4.4V(C919)ELAVDD_7.0V=7.0V(C903)

Resolder or Replace the DCDC(U900)

No

CheckVCC_1.5V_LCD=1.5V(C921)

NoResolder or Replace the DCDC(U903)

Level 3 Repair



8-36

Level 3 Repair



8-37

Level 3 Repair



8-38

8-3-15. 16M CAM

"Camera" function does not work

Yes

Check the Cameraconnector on Main PBA Reconnect the HDC901

No

Check the voltageC907 = 1.2V,C908 = 1.8V

C909 = 2.95VC910 = 2.8V

Resolder U7003

Resolder U7006

Resolder U7006

Resolder U7003

Replace the PBA

No

Yes

Replace the PBA.Check MAIN_CAM_MCLK

is 24MHz(R916)

END

Replace the camera module

No

Yes

Yes

Abnormal

Yes

Check the voltageC902 = 0.875~1.0V,

C950 = 1.0VC917 = 1.8V

Resolder U7005, L7015

Resolder U7006

Resolder U7006

Resolder U904

Replace the PBA

No

Level 3 Repair



8-39

CAM_IO_1P8ZD

901

21

C910

ZD90

02

1

TP903

C91

5

1ZD

902

2

C91

7

TP_COMP_SPI_INT

CAM_AF_2P8

C909

J6MSPI_DI

J7MSPI_DO

J8MSPI_CS

J9MSPI_CLK

H7

VSS

H8D1

H9D0

J1S_DNDATA3

J2S_DNDATA2

J3S_DNCLK

J4S_DNDATA1

J5S_DNDATA0

G8D3

G9D2

H1S_DPDATA3

H2S_DPDATA2

H3S_DPCLK

H4S_DPDATA1

H5S_DPDATA0

H6

VDD

IO_1

8V

F9PCLK

G1

VSS

G2

S_V

DD

10V

G3

VDD

G4

VSS

G5

S_V

DD

18V

G6VSYNC

G7

VDD

F1GPIO_1

F2V

DD

IO_1

8V

F3VS

S

F4JTAG_EN

F5HIIC_ID

F6HSYNC

F7VS

S

F8D4

E2VD

D

E3FSOURCE

E4VD

D

E5VS

S

E6VD

D

E7D7

E8D6

E9D5

D3

VDD

D4

VSS

D5

VDD

IO_1

8V_P

LL

D6TST

D7D9

D8D8

D9HSPI_SDI

E1GPIO_2

C4

M_V

DD

10V

C5

VSS

C6

VSS

C7

VDD

C8HIIC_SDA

C9HSPI_SDO

D1GPIO_3

D2

VSS

B5M_DNDATA0

B6VD

DIO

_18V

B7VS

S

B8HIIC_SCK

B9HSPI_XCE

C1

M_V

DD

10V

C2

M_V

REG

_0P4

V

C3

M_V

DD

18V

A6M

_VD

D10

V_P

LL

A7RSTN

A8MCLK

A9HSPI_SCK

B1M_DNDATA3

B2M_DNDATA2

B3M_DNCLK

B4M_DNDATA1

MAR

K1

MAR

K2

A1M_DPDATA3

A2M_DPDATA2

A3M_DPCLK

A4M_DPDATA1

A5M_DPDATA0

21

U904

ZD90

8

NC38

55667 788

99

NC3536

NC37

NC

2929

33

303031 31323233 333434

44

21 21222223 2324 2425 252626

27272828

14141515161617171818

19 19

22

2020

11

1010111112 121313

TP901

HDC901

C90

2

CAM_SENSOR_A2P95

VDD_0P875_1P0_COMP_EXT

TP902

C907

R916

C91

6

CAM_DVDD_1P2

VDDA_1P8_COMP

C918

VDD_MIPI_1P0_COMP

C94

9

TP900

C908

C95

0

21

CAM_IO_1P8

ZD90

3

MAIN_CAM_MCLK

MAIN_CAM_D1_N_CON

MAIN_CAM_D0_P_CONMAIN_CAM_D0_N_CON

MAIN_CAM_D3_P_CON

MAIN_CAM_SDA

MAIN_CAM_D3_N_CON

MAIN_CAM_D2_P_CON

MAIN_CAM_CLK_N_CON

MAIN_CAM_D1_N_CONMAIN_CAM_D0_N_CON

COMP_SPI_INT

MAIN_CAM_D2_N_CON

MAIN_CAM_CLK_P_CONMAIN_CAM_CLK_N_CON

MAIN_CAM_D1_P_CON

MAIN_CAM_D3_P_CONMAIN_CAM_D2_P_CON

MAIN_CAM_CLK_P_CON

MAIN_CAM_D1_P_CONMAIN_CAM_D0_P_CON

MAIN_CAM_D3_N_CONMAIN_CAM_D2_N_CON

MAIN_CAM_D1_NMAIN_CAM_D0_N

MAIN_CAM_SCL

CIS_SPI_CSN

MAIN_CAM_SDA

CIS_SPI_MISOCIS_SPI_MOSI

MAIN_CAM_CLK_P

MAIN_CAM_D1_PMAIN_CAM_D0_P

COMPANION_RSTNMAIN_CAM_MCLK

CIS_SPI_SCL

MAIN_CAM_D3_NMAIN_CAM_D2_N

MAIN_CAM_CLK_N

MAIN_CAM_D3_PMAIN_CAM_D2_P

MAIN_CAM_RSTCIS_SPI_MISO

CIS_SPI_MOSICIS_SPI_SCLCIS_SPI_CSN2

MAIN_CAM_SCL

CAM_SENSOR_DET

AF_SDAAF_SCL

CAM_AGND

LXBB2

PGNBBG5

LXBB1

INBB

OUTBBF3

LXBB2

PGNBBF5

LXBB1

INBB

LDO10G1

LDO11G2

OUTBBG3

LDO14E2

IRQB

ENL12

FB_BB

ENBB

GNDE7

INL5

INL4

LDO12D1

LDO15D2

SDAD3

SCLD4

ENB

LDO9D6

LDO4D7

LDO13E1

LDO5B7

PGNDBC1

PGNDBC2

VIOC3

CE

REFBYPC5

LDO2C6

INL3

LDO7A6

LDO6A7

LXB

LXB

FB_B

INL1

INL2

LDO8B6

MARK

MARK

INB

INB

SYSA3

LDO1A4

LDO3A5

U7006

VPH_PWR

VPH_PWR

C70

89

VT_CAM_1P8

C70

80

GES_LED_3P3

C70

84

VT_CAM_SENSOR_A2P8

VSIL_C_1P2

L7015

C70

82

C70

93

C70

91

C7095

VDD_MIPI_1P0_COMP

C70

88

C70

87

C7069

TOUCH_1P8

VREG_BOOST_BYPASS HRM_VDD_1.8V

C7096

C71

05

D4SWSW

D3VSEL

A1

C4

PG

ND

E2PVINPVIN E1

D2PVIN

SCLA3SDA

B1E4SW

SWE3

AVIND1

A2 EN

A4FBB2 PGND|INTB

PGND|PGB3

PG

ND

C1

C2

PG

ND

PG

ND

C3

U7005

NC

1

NC

2

B4 AGND

C70

79

VSIL_A_1P2

VREG_S4_1P8

C70

81

C70

83

VDD_0P875_1P0_COMP_EXT

C71

02

C71

04

VMHL_1P8

C70

90

VF_1P8

C7094

C70

85

CAM_SENSOR_A2P95

CAM_IO_1P8

VT_CAM_1P2

C70

86

C70

92

VDDA_1P8_COMP

VMHL_3P3

TSP_AVDD_3P3

SUB_PMIC_SDASUB_PMIC_SCL

COMP_EN

NFC_I2C_SCLNFC_I2C_SDA

TP_USB7001

VREG_L9_UIM1

GN

D98

GN

D

99VREF_XO_THM

VREG_RF_CLK

90VD

D_S

7

91VD

D_L

19

92VREG_L19

93GPIO_14

94XTAL_32K_IN

95CBL_PWR_N

96G

ND

97

GN

D_X

O83

GN

D_R

F84

GN

D_X

OAD

C

85AMUX_3

86VREF_NEG_S1

87GPIO_04

88G

ND

_S1

89G

ND

_S1

9

GN

D_S

376

GN

D_S

3

77VREG_S3

78PON_RESET_N

79XTAL_32K_OUT

8VREG_XO

80AMUX_PU1

81G

ND

82

DIFF_CLK_P

69AMUX_1

7XTAL_19M_IN

70AMUX_2

71VREG_S1

72GPIO_03

73VSW_S1

74VSW_S1

75

VSW_S361

VSW_S3

62PON_11

63PS_HOLD

64KYPD_PWR_N

65AVDD_BYP

66AMUX_HW_ID

67DIFF_CLK_N

68

RF_CLK3

54RF_CLK2

55GPIO_08

56GPIO_06

57VREG_L8

58VD

D_L

8

59VD

D_S

1

6XTAL_19M_OUT

60

VDD

_S3

47VREG_L16

48REF_BYP

49G

ND

_REF

5VD

D_L

6_12

_14_

15_2

6

50RESIN_N

51VREG_LVS1

52BB_CLK1

53

VREG_L13

4VREG_L15

40VREG_L9

41GPIO_02

42VREG_S4

43G

ND

_S4

44G

ND

_S4

45VD

D_S

346

GN

D_S

5

32VREG_S5

33BB_CLK1_EN

34SLEEP_CLK

35VREG_L14

36VDD_LVS1_2

37BB_CLK2

38RF_CLK1

39

VREG_L10

25VREG_L23

26GPIO_01

27VREG_L17

28VSW_S4

29VSW_S4

3VD

D_L

16_2

5

30G

ND

_S5

31

GN

D_S

9

22VREG_LVS2

220

VDD

_S8

221VSW_S8

222

GN

D_S

8

223VREG_L1

224

VDD

_L1_

11

23VD

D_L

5_7

24

VDD

_S11

212VSW_S11

213

GN

D_S

11

214

VDD

_S10

215VSW_S10

216

GN

D_S

10

217

VDD

_S9

218VSW_S9

219

GN

D_S

920

5VD

D_S

8

206VSW_S8

207

GN

D_S

8

208

VDD

_L1_

11

209VREG_L21

21VREG_L6

210

GN

D

211

GN

D_S

11

199

VDD

_S10

2VD

D_S

5

20VREG_L26

200VSW_S10

201

GN

D_S

10

202VREG_LVS3

203VSW_S9

204

GPIO_16

191GPIO_15

192VREG_L11

193

VDD

_L18

194

VDD

_L21

195

VDD

_L2_

3_4_

27

196VREG_L3

197VSW_S11

198

VDD

184GPIO_10

185GPIO_09

186VDD_LVS3_4

187VREG_LVS4

188

VDD

_MSM

_IO

189GPIO_17

19VREG_L12

190

VREG_S8

177VREG_L18

178

GN

D_S

217

9G

ND

_S2

18VREG_L25

180VREG_L4

181VREG_L27

182VREG_L2

183

GPIO_21

17VSW_S5

170VREG_S10

171VREF_EBI1_DQ

172VREF_DDR

173VREF_EBI0_DQ

174GPIO_18

175MPP_07

176

VREF_NEG_S2

162MPP_06

163VSW_S2

164VSW_S2

165

GN

D_S

616

6G

ND

_S6

167VCOIN

168VREG_S11

169

GPIO_22

155VREF_NEG_S8_9_10_11

156MPP_01

157VREF_EBI1_CA

158VREF_EBI0_CA

159VREG_S9

16VSW_S5

160MPP_08

161

VREG_L22

148

VDD

_L22

149

VDD

_S2

15VD

D_S

4

150VSW_S6

151VSW_S6

152OPT_1

153MPP_03

154

VDD

_S4

140MPP_04

141MPP_02

142GPIO_20

143GPIO_11

144AMUX_USB_ID

145VREG_S2

146MPP_05

147

VDD_MVS

133

GN

D_S

1213

4G

ND

_S12

135

VDD

_S6

136

VDD

_S6

137OPT_2

138VREF_NEG_S6

139VREG_S6

14

GPIO_13

126

GN

D12

7G

ND

128

GN

D

129AMUX_5

13VD

D_L

17

130

GN

D

131VREG_MVS

132

VSW_S12119

VSW_S12

12VREG_L20

120

GN

D_S

712

1G

ND

_S7

122SHDN_N2

123SPMI_CLK

124SPMI_DATA

125GPIO_12

111

GN

D

112DNC

113

GN

D

114VDD_SNS

115XO_THERM

116VREF_NEG_S12

117GPIO_07

118

VDD

_S12

104

VDD

_S12

105VSW_S7

106VSW_S7

107GPIO_19

108VREF_NEG_S7

109VREG_S7

11VD

D_L

9_10

_13_

20_2

3_24

110

1VD

D_S

5

10VREG_L24

100AMUX_4

101VREG_S12

102GPIO_05

103

L7003

U7003

VREG_L24_3P075

VREG_L15_2P05

VREG_L8_1P8

VREG_KRAIT_0P9

R7001

VREG_S3_1P3

C7023

VREG_L8_1P8

VF_1P8

R70

17

VREG_XO

CAM_AF_2P8

L7000

L7006

R70

10

VREG_S6_0P9

C71

08

C70

51

TP_7000

VREG_L13_2P95

CAM_DVDD_1P2

VREG_L19_3P3

C71

07

VREG_S7_0P9

L7005

VCC_1.8V_LCD

L7012

L7008

VREG_S4_1P8

V_TSP_IO_1P8

VREG_L1_1P2

R7023

D7000

C70

53

L7009

C70

52

C7025

VREG_L2_1P2

C70

54

VREG_S5_2P15

VDD_VIB_3P0

VREG_L4_1P225

L7004

VREG_L18_2P85

C70

47

R7024

VREG_L22_3P0

C7015

VREG_L1_1P2_WO_DDR

R7019

VPH_PWR

C7038

VREG_L6_1P8

L7002

C7026

R7004

R7011

C70

42VREG_S1_0P95

L7001

L7007

VPH_PWR

L7010

VREG_L14_1P8

R7000

VREG_L20_2P95

D7001

VREG_S2_0P9

C70

50

C7058

R70

14

C70

49

C7041

R70

15

2

4 3

1

OSC7000

C70

44

VREG_S5_2P15

VREG_L16_2P7

VREG_S2_0P9

BAT7000

C70

45

C7029

D7002

C70

34

R70

13

VREG_L21_2P95

TP_USB7000

C7022

PM8974_L10

R70

12

C70

46

VREG_L12_1P8

VPH_PWR

VOL_DOWN

VOL_DOWN

COMP_EN

COMPANION_RSTN

VF

SLEEP_CLK_WIFI

CRESET_B

PA_THERM0

XO_OUT_D0_USBXO_OUT_D0_CXO

NFC_EN

MAIN_CAM_RST

CLK_REQ

HRM_INTFLASH_LED_EN

EAR_DETFUEL_ALERT_N

TSP_INTMICBIAS_EN_MSMTOUCH_INT

HALL_SENSOR_INT

ERR_FG

LCD_1P8_EN

GND_XOADC


GND_REF_PMC49

DIVCLK1_CODEC

VOL_UP

OK_SW

MLCD_RST

VSENSE_S1_M

VREG_RF_CLK

WTR_XO_IN

VREG_LVS1_1P8

VSENSE_S1_P

PMC8974_PON_RESET_N

VREG_S3_1P3VREG_S5_2P15

VSENSE_S6_M

VSENSE_S6_P

VSENSE_S2_P

VSENSE_KRAIT_M

VREF_EBI1_CA

VREF_EBI0_CA

VSENSE_KRAIT_P

VSENSE_S2_M

VREF_EBI1_DQ

VREF_EBI0_DQ

VREG_S4_1P8

VREG_S4_1P8

FLASH_LED_SET

USB3.0_CLK_MUSB3.0_CLK_P

VSENSE_S2_P

VSENSE_S7_M

VSENSE_S7_P

VREG_BOOST_BYPASS

VPH_PWR

VSENSE_S2_M

TXDAC0_VREF

GND_XOADC

19M_OUT

19M_IN

EAR_ADC_3.5

BATT_THERM

MSM_PS_HOLD

MHL_RST

CHG_DET

19M_OUT

SDC_UIM_VBIAS


PHONE_ON_N

MSM_THERM

JIG_ON_N

19M_IN

XO_OUT_D0_ENXO_OUT_D1

SLEEP_CLK

Level 3 Repair



8-40

8-3-16. VT CAM

"Camera" function does not work

Yes

Check the Cameraconnector on Main PBA Reconnect the HDC900

No

Check the voltageC7088 = 2.8VC7083 = 1.8VC7079 = 1.2V

No

Yes

Yes

END

Replace the camera module

No

Yes

Resolder U7006

Replace the PBA

Check VTCAM_MCLKis 24MHz

Resolder R901

Replace the PBA.

Abnormal

Level 3 Repair



8-41

Level 3 Repair



8-42

8-3-17. MHL

MHL Does not work

Yes

NoCheck if HDC903 is well connectedCheck the SUB Con to conon Main PBA

Yes

NoCheck the U7006

Check the voltage ofL1001(1.2V), C1003(1.8V),

C1004(3.3V)

Replace U1001

Yes

END

Yes

Check the USB connectionis detected?(Notification alarm) Replace the SUB PCB

Yes

No

Level 3 Repair



8-43

VMHL_1P8

C1003C1002

VMHL_1P8

C1011

VMHL_1P8

L1000

R10

09

L1001

VMHL_1P8

C1006

VSIL_C_1P2

R10

06

R10

08

C1005

VSIL_A_1P2 VMHL_3P3

C1001

G4RX0_P

G5RX0_N

G6RXC_P

G7RXC_N

F3RPWR

F4DSCL

F5A

VC

C12

F6G

ND

F7HPD

G1RX2_N

G2RX1_P

G3RX1_N

E2

GN

D

E3

IOV

CC

18

E4

CV

CC

12

E5

RX

_AV

CC

E6

AV

CC

12

E7

GN

D

F1RX2_P

F2G

ND

D1CSDA

D2RSVD5

D3

GN

D

D4

IOV

CC

18

D5

CV

CC

12

D6CI2CA

D7RESET_N

E1DSDA

B7RSVDL

C1CSCL

C2RSVD2

C3RSVD0

C4

AV

CC

12C

5G

ND

C6V_SENSE

C7INT

A6

NC

A7CBUS_ID

B1RSVD4

B2RSVD1

B3CM-TERM

B4

GN

D

B5

AV

CC

33

B6USB_ID

NC

1

NC

2

A1RSVD3

A2

VD

DQ

A3MHL_D

A4MHL_DB

A5

NC

U1001

C1008

R10

07

TP1000

TP1001

C1004

MHL_DSDA_1.8VMHL_DSCL_1.8V

HD_TX1+HD_TX1-

HD_TX0+HD_TX0-

HD_TXC+HD_TXC-

HDMI_HPD

MHL_DPMHL_ID

MHL_I2C_SCL

MHL_INT

MHL_I2C_SDA

MHL_RST

MHL_DMHD_TX2+HD_TX2-

LXBB2

PGNBBG5

LXBB1

INBB

OUTBBF3

LXBB2

PGNBBF5

LXBB1

INBB

LDO10G1

LDO11G2

OUTBBG3

LDO14E2

IRQB

ENL12

FB_BB

ENBB

GNDE7

INL5

INL4

LDO12D1

LDO15D2

SDAD3

SCLD4

ENB

LDO9D6

LDO4D7

LDO13E1

LDO5B7

PGNDBC1

PGNDBC2

VIOC3

CE

REFBYPC5

LDO2C6

INL3

LDO7A6

LDO6A7

LXB

LXB

FB_B

INL1

INL2

LDO8B6

MARK

MARK

INB

INB

SYSA3

LDO1A4

LDO3A5

U7006

VPH_PWR

C70

89

VT_CAM_1P8

C70

80

GES_LED_3P3

C70

84

VT_CAM_SENSOR_A2P8

VSIL_C_1P2

C70

82

C70

93

C70

91

C7095

VDD_MIPI_1P0_COMP

C70

88

C70

87

TOUCH_1P8

VREG_BOOST_BYPASS HRM_VDD_1.8V

C7096

C71

05

C70

79

VSIL_A_1P2

VREG_S4_1P8

C70

81

C70

83

C71

02

C71

04

VMHL_1P8

C70

90

VF_1P8

C70

85

CAM_SENSOR_A2P95

CAM_IO_1P8

VT_CAM_1P2

C70

86

C70

92

VDDA_1P8_COMP

VMHL_3P3

TSP_AVDD_3P3

SUB_PMIC_SDASUB_PMIC_SCL

VDD_SWITCH_2P7

64

6

6060

7 7 8 89 9

NC

61

NC

62N

C63

NC

5353 545455 55 5656

5757 58585959

6

45 46464747 48484949

5 5

50 505151 5252

3839 39

4 4

40404141 42424343 444445

3031 31 32 3233 33 34 3435 35 36 3637 37 38

24 24

2525 26262727 28282929

3 3

30

1617 17 18 1819 19

2 2

20 20

2121 22 2223 23

1 1

10 1011 11 12 1213 13 14 1415 15 16

HDC903

V_BUS_5V V_BUS_5V

Level 3 Repair



8-44

8-3-18. TSP

Touch Screen does not work

Yes

NoReconnect the HDC800Check TSP Connector onMain PBA

Yes

END

Yes

Replace LCD Module

Yes

NoCheck theTSP VDD_1.8V(C911),TSP_AVDD_3.3V(C922)

Resolder or Replace1.8V => U70033.3V => U7006

Level 3 Repair



8-45

Level 3 Repair



8-46

8-3-19. IRLED

IRLED does not work

Yes

NoReplace U7004Check the I2C signal(R502, R503)

Yes

END

Yes

No

Replace Sensor IC(IRDA1000)

Check the IRDA_CONTROLsignal (R7045) Replace U7004

Yes

Level 3 Repair



8-47

Level 3 Repair



8-48

8-3-20. Motor

Motor does not work

Yes

NoResolder or Replace : ANT800, ANT801Check the Clip on Main PBA.ANT800 and ANT801

Yes

END

Replace Motor

Yes

Check the P/N signal(L804,L806,R7021,C7040)

Yes

Resolder L804,L806,R7021,C7040 or U7000No

Level 3 Repair



8-49

L804

ANT801

1 1

22

L806

11

2 2

ANT800

MOTOR_N

MOTOR_P

C70

27C

7031

C7033

VPH_PWR

C7018

R70

16

CHG_IN_5V

C7040

VDD_VIB_3P0

C7024

R7021

C7035

VPH_PWR

VREG_S4_1P8

CHG_IN_5V

R7018

C7037

C70

30

C7036

VPH_PWR

R70

25

WPC_5V

C70

19

L7011

C70

55

J2

SYSJ3

SYSJ4

BA

TTJ5

BA

TTJ6

ALRTBJ7

GN

DFG

J8

MDPJ9

H4

BA

TTH

5

BA

TTH

6

QSTRTH7

BA

TT_F

GH

8

IN_MOTH9

NCJ1

NCJ10

CHGPG

G6

SCLFGG7

VCELLG8

MGAING9

CHGPGH1

MDNH10

BA

T_S

NH

2

BA

T_S

PH

3

SYS

F8

SCLF9

CHGLXG1

MPWMG10

AVLG2

OVPENBG3

GN

D_A

G4

GN

D_A

G5

SDA

F1

GN

DM

F10

INOKBF2

DETBATBF3

SYS_AF4

SYS_AF5

VIOF6

SDAFGF7

EO

E2

WCINOKBE3

GN

D_Q

E4

E5VBUSDET

GN

D_D

E6

AUT1E7

UT1E8

MV

BU

SE

9

CHGLX

D4MRST1B

D5

RESETBD6

AUR2D7

D8UR2

IDBD9

BYPE1

SL1E10

BYP

C6

MV

BA

TC

7

MIC_USBC8

BCC9

CHGIND1

SR2D10

CHGIND2

BYP_WD3

INTB

B8

UIDB9

CHGINC1

COMP2C10

BYP_WC2

BYP_WC3

GN

D

C4

GN

D

C5

JIG

WCINB1

COMN1B10

WCINB2

GN

D

B3

GN

D

B4

TORCHENB5

FLASHENB6

ADN1B7

MV

IO

A2

SAFEOUT2A3

GN

D

A4

FLED1A5

FLED1A6

ADP2A7

DN1A8

DP2A9

U7000

1MARK

2MARK

NCA1

NCA10

SAFEOUT1

V_BAT

VREG_S4_1P8

LED7000

C70

16

C7032

C70

20

C70

28

R70

48

VREG_S4_1P8

VREG_S4_1P8

C70

17

C70

21

MOTOR_N

V_BATTERY_SENSE

UART_RXD

VBUS_DET

UART_TXD

VBUS_DET

PM_SYS_PWR

FUEL_SDA_1.8V

OVP_EN_N

FUEL_SCL_1.8V

V_BATTERY_SENSE

VB

ATG

ND

_SE

NS

EV_

BA

TTE

RY_

SE

NSE

FUEL_ALERT_N

USB_VBUS_MSM_4.9V

USB_HS_DMUSB_HS_DP

MUIC_DM

MUIC_ID

MUIC_DP

JIG_ON_N

PM_SYS_PWR


IF_PMIC_RESET_N

MUSB_INT

PHONE_ON_N

CHG_DETVF_DETB

IF_PMIC_SCL_1.8V

VIB_PWM

IF_PMIC_SDA_1.8V

PM_SYS_PWR

MOTOR_P

JTAG_TXD

JTAG_RXD

JTAG_IF_CON_SENSE

ANT8

0 0AN

T801

AN

T80 3

ANT8

04AN

T805

BTC7000

C10

07

C10

10

C1012

C10

14

C10

15

C1016C1123

C1125

C1128

C11

29C

1130

C11

31

C1132C1133

C1137

C11

39

C11

45

C1148

C1150C1151 C

1152

C11

53

C11

54

C1155C1156

C11

60

C414

C42

0

C42

3C42

4

C425

C42

7

C42

8

C42

9

C432C433

C466

C467

C7016

C70

1 7

C70

1 8

C70

19

C7020

C7021

C70

24

C7027C7028

C7030C7031

C70

32

C7033

C7036

C7037

C70

40

C70

55

C70

6 7

C7068

C70

69

C70

70

C7071

C7072

C70

73

C70

76

C7077C7078

C70

7 9

C7080

C70

81

C70

82C

7083

C70

84C

7085

C70

86C

7087

C7088C7089

C7090

C70

9 1

C70

92

C7093

C7094

C70

95

C70

96C

7097

C70

9 8

C70

99

C71

00

C7101 C71

02

C7103

C71

05

C71

06

C83

9C

840

C900

C90

1

C90

2

C90

3C

904

C905

C906

C90

7C

908

C909C910

C91

1C

912

C91

3C

914

C91

5

C91

6C

917

C91

8

C919 C920C921C922

C923

C924

C929

C930C931

C932

C947

C948

C94

9

C95

0

CO

N40

0

CON401

CO

N40

2

F400

F401

F910

F91 1

F912

F91 3

F91 4

F91 5

F91 6

HDC900

HDC901

HDC902

IRDA1000

L100

3

L111

1

L1113

L1114

L1115

L111

8

L1120

L1121

L112

3

L112

4

L112

5

L1126 L1127

L1128L1129 L1130

L113

1

L410L411

L412

L413

L414

L417

L418

L701

1

L701

4 L7015

L701

6

L7017

L804

L806

L807L808

L809

L810

L900

L901

L902

L903

L904

L905

L906

L908 L909

L914

LED1000

Q1000

Q1001R10

00

R1001

R1010

R1011R1012R1013R1014

R1015

R1016 R1017R1018

R1019

R1020

R1023R1024

R412

R413

R414R415

R416

R417

R41

8

R433 R434R44

1

R510R511

R512

R51

3

R514

R51

5

R519R520

R7012

R70

13

R70

1 8

R7021

R7025

R70

45

R81

4

R815

R90

1

R902

R905

R90

6R90

7

R91

6

TP407

TP409TP410

TP411TP412TP413TP414TP415

TP417TP418

TP424TP425TP426

TP427

TP428TP429

TP430

TP900TP901

TP902TP903

TP_COMP_SPI_IN T

TP_TFLASH_CMD_700 0

U1000

U1002

U11

03

U11

04

U1106

U11

08

U11

09

U404

U40

5

U411 U7000

U7005

U7006U900

U903U904

V80

0

V801

ZD1000ZD1001

ZD10

02

ZD7001

ZD70

04

ZD70

06

ZD70

07

ZD900

ZD90

1

ZD902

ZD90

3

ZD90

8

Level 3 Repair



8-50

Check C100 -65dBm ?

8-3-21. GSM1800/GSM1900 RX

NORMAL CONDITIONcatch the channel?

Check the voltage at{C310= V_Battery ?}& {C310 = 2.0V ?}& {C330 = 1.8V }

& {C331,C309 = 1.3V?}

Check CPL100 PIN1 -65dBm ?

Check F101 PIN 32 -65dBm ?

CHECK solderedRFS100, L103, C100

Resolder or changeCPL100

Resolder or changeF101,L128,L126,L106

Resolder or changeU302

Check componentsoldering status OK at

F101Resolder or change

F101

GSM1800/1900 Receiver is O.K? Resolder or changeUCP500-1

END

NO

YES

NO

NO

YES

NO

YES

NO

YES

NO

YES

NO

CONTINUOUS RX ON

RF INPUT : 698CH

AMP : -50dBm

Check the voltage atC104= V_Battery ?

CHECK solderedC104

YES

NO

Level 3 Repair



8-51

MAIN FEMID(BAND1TX/2/3/5/8/20)

L128

C112

L114

L112C104

R101

3GG

4

RFS100

ANT2 1COMMON

L110

L120

L106

L118

VREG_L16_2P7

L104

G3

2G

G4

RFI

N 1

RFS106

C11

6

C109

L122

L103

C114

L108

C101L150

VDD_SWITCH_2P7

C106

VDD_SWITCH_2P7

CO

UP

LIN

G

GN

D1

2G

ND

25

IN13

OU

T4

TRM

_PO

RT CPL100

6

GH_TX9

GN

D47

GN

D48

GN

D49

B5_TX5

GN

D50

B20_TX6

B8_TX7

GN

D8

B2_TX4

GN

D40

TRX241

GN

D42

NC43

GN

D44

GN

D45

GN

D46

D|PCS_RX32

B5_RX33

34B8_RX

GN

D35

GN

D36

B20_RX37

GN

D38

TRX139

NC25

B1_RX26

GN

D27

B2_RX28

GN

D29

NC3

B3_RX30

GN

D31

SCLK18

SDATA19

B3_TX2

20VIO

VDD

21G

ND

22

NC23

GN

D24

GL_TX10

GN

D11

GN

D12

GN

D13

ANT

14

GN

D15

NC16

GN

D17

F101

B1_TX1

L126

R100

C100C102

C103

L124

VR

EG

_S4_

1P8

WTR_PRX_G1800/1900

WTR_PRX_B2

TX_B1_PA_OUTTX_B2_PA_OUT

TX_B5_PA_OUT

TX_GSMHB_PA_OUTTX_GSMLB_PA_OUT

TX_B3_PA_OUT

TX_B8_PA_OUT

RFF

E2_

CLK

RFF

E2_

DA

TA

TX_B20_PA_OUT

WTR_PRX_B3

WTR_PRX_G850/B5

WTR_PRX_G900/B8

WTR_PRX_B20

MAIN_ANT1_

troubleshooting

Documents

service guide subject

prior notice

sub pcb toplevel

sub pcb bottomlevel

pcb diagrams8

main pcb toplevel

esd safe tweezer

busear micmic