LG KG300 Service Manual Download Page 66

Page: 66 / 85

5. Circuit Diagrams

- 67 -

Camera Module

Bluetooth Module Interface

VCMOS_1V8

VCMOS_2V8

CMRST

GPIO9_SDA

P1,5

CMMCLK

GPIO8_SCL

P1,5

CMPCLK

CMHREF

CMVREF

CMDATA0 P1

CMDATA3

CMDATA2

CMDATA1

CMDATA4 P1
CMDATA5 P1

CMDATA7 P1

CMDATA6 P1

CMDATA8 P1
CMDATA9 P1

CMPDN

CMOS
connector

Camera

R222

R0402

R222

R0402

TP206
TP20MIL

TP20MIL

TP206
TP20MIL

TP20MIL

TP209

TP40MIL

TP20MIL

TP209

TP40MIL

TP20MIL

C224
100N

C0402

C224
100N

C0402

R223

R0402

R223

R0402

TP207
TP20MIL

TP20MIL

TP207
TP20MIL

TP20MIL

TP208

TP20MIL

TP208

TP20MIL

B208
MMZ1005S102C

R0402

B208
MMZ1005S102C

R0402

R224

R0402

R224

R0402

R208

MMZ1005S102C

R0402

R208

MMZ1005S102C

R0402

TP201
TP20MIL

TP20MIL

TP201
TP20MIL

TP20MIL

J201
7504924_25P

6296-025

J201
7504924_25P

6296-025

PCLK

DGND

XVCLK1

DOVDD

HREF

DVDD

PWDN

RESET

SIO_C

VSYNC

SIO_D

AVDD

AGND

NC.

TP202
TP20MIL

TP20MIL

TP202
TP20MIL

TP20MIL

C222
100N

C0402

C222
100N

C0402

R201
N.C

R0402

R201
N.C

R0402

C223
100N

C0402

C223
100N

C0402

TP204
TP20MIL

TP20MIL

TP204
TP20MIL

TP20MIL

TP205
TP20MIL

TP20MIL

TP205
TP20MIL

TP20MIL

BT_1V8

BT_2V8

BT_1V8

BT_2V8

BT_1V8

GPIO17_BT_DISCON P1
GPIO16_BT_AUDIOSEL P1

GPIO19_BT_DATASEL P1

EINT3_BT

PCMSYNC_BT P1

PCMCLK_BT P1

UTXD3_BT P1
URXD3_BT P1
URTS3_BT P1
UCTS3_BT P1

GPIO20_BT_RESET P1

PCMOUT_BT P1

PCMIN_BT P1

BLUETOOTH CSR BC3 CHIP

C701
2U2

C0603

C701
2U2

C0603

TP713
TP-0.7MM

TP-0.7

TP713
TP-0.7MM

TP-0.7

R701
N.C_0R

R0402

R701
N.C_0R

R0402

U700
BC313143A-ROM

BC313143A-A

U700
BC313143A-ROM

BC313143A-A

RF_IN

TX_A

TX_B

AUX_DAC

VDD_VC0

VDD_RADIO

VDD_RADIO.

VDD_ANA

VDD_CORE

E10

VDD_PIO

VDD_PADS

D10

VDD_USB

VRGE_IN

VRGE_EN

AL_I

AL_OUT

VSS_VCO

VSS_RADIO

VSS_PADS

K10

VSS_USB

VSS_ANA

VSS_ANA1

VSS_ANA2

VSS_CORE

NC1

NC2

NC3

NC4

NC5

NC6

A10

NC7

NC8

NC9

NC10

NC11

B10

NC12

NC13

NC14

NC15

NC16

NC17

NC18

NC19

NC20

PCM_SYSNC

G10

PCM_I

PCM_OUT

PCM_CLK

H10

PIO11

PIO10

PIO9

PIO8

PIO7

PIO6

F10

PIO5

PIO4

PIO3

PIO2

PIO1

PIO0

SPI_CLK

C10

SPI_MISO

SPI_MOSI

SPI_CSB

USB_DP

USB_DN

UART_RX

UART_TX

J10

UART_CTS

UART_RTS

TEST_EN

RESET

REAETB

AIO0

AIO1

AIO2

C707
10N

C0402

C707
10N

C0402

J700
MM8430-2600B

MM8430-2600B

J700
MM8430-2600B

MM8430-2600B

L700
22NH

L0402

L700
22NH

L0402

R702

N.C_0R

R0402

R702

N.C_0R

R0402

U701

Balance_Filte_DBF81F106-CSR-T

DBF81F106-CSR-T

U701

Balance_Filte_DBF81F106-CSR-T

DBF81F106-CSR-T

Unbalance

Balance1

GND1

Balance2

GND2

GND3

C705
2U2

C0603

C705
2U2

C0603

R700
2R2

R0402

R700
2R2

R0402

R709

R0402

R709

R0402

TP711 TP-0.7MM

TP-0.7

TP711 TP-0.7MM

TP-0.7

X700

TN4-25888_16MHz

TN4-25888

X700

TN4-25888_16MHz

TN4-25888

OUT

GND

C702
10N

C0402

C702
10N

C0402

C716
10P

C715
3P3

R710

R0402

R710

R0402

R708

N.C_0R

R0402

R708

N.C_0R

R0402

R706
0R

R0402

R706
0R

R0402

TP712 TP-0.7MM

TP-0.7

TP712 TP-0.7MM

TP-0.7

C706
10N

C0402

C706
10N

C0402

R707

10K

R0402

R707

10K

R0402

E700
Antenna

LTA-5220-2G4S1-A1

E700
Antenna

LTA-5220-2G4S1-A1

GND

C711
10N

C0402

C711
10N

C0402

C712
0R

C0402

C712
0R

C0402

C704
2U2

C0603

C704
2U2

C0603

C713

1.5p

C0402

C713

1.5p

C0402

C703
1P5

C0402

C703
1P5

C0402

R711

N.C_0R

R0402

R711

N.C_0R

R0402

R705

R0402

R705

R0402

C700
15P

C0402

C700
15P

C0402

C714

N.C

C0402

C714

N.C

C0402

R704

N.C

R0402

R704

N.C

R0402

Summary of Contents for KG300

Page 1: ...Date November 2006 Issue 1 0 Service Manual Model KG300 Service Manual KG300 KG300 cover 4 _1109 2006 11 10 3 19 PM 1 ...

Page 2: ... Introduction and Specification 5 2 Software Download Procedure 11 3 Assembly and Disassembly 18 4 Troubleshooting 24 5 CIRCUIT DIAGRAMS 63 6 PCB LAYOUT 77 7 EXPLODED VIEW REPLACEMENT PART LIST 79 Contents ...

Page 3: ... 4 ...

Page 4: ...yer Yes Video recoding with playback Yes QCIF and preview QVGA FM Receiver Yes MPEG4 H 263 Yes H 264 No no support AAC No FM as alarm Yes Scheduled FM recording Yes MP4 for incoming call power on off Yes animation and screen saver Speaker HandFree Yes Audio player real resuming Yes for MP3 only Embedded Game 3 Default Video recording Yes Memory Size 128Mb flash 64Mb Ram Internal NAND 64MB Memory C...

Page 5: ...PP FTP USB Yes slave 1 1 IrDA No WAP Yes 2 0 Java No PoC No EMAIL No Status LED with one color Yes DRM No OMA 1 0 Dictionary No MPEG4 caller ID Yes Finger handwriting No Touch Panel No OTA Yes AB repeat Yes Music Equalizer Yes Image Editing No In flight mode Yes Connection Others ...

Page 6: ...24 TX 890 n 1024 0 2 MHz 1 Frequency Band RX 935 n 1024 0 2 MHz n 975 1023 DCS1800 Band TX 1710 n 512 0 2 MHz RX 1805 n 512 0 2 MHz n 512 885 PCS1900 Band TX 1850 2 n 512 0 2 MHz RX 1930 2 n 512 0 2 MHz n 512 810 2 Phase Error RMS 5 degrees Peak 20 degrees EGSM900 0 1ppm 90 Hz 3 Frequency Error DCS 0 1ppm 180 Hz PCS 0 1ppm 190 Hz ...

Page 7: ...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 low 5 dBm 5dB DCS1800 PCS1900 Control Level Power Level Tolerance 0 high 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 ...

Page 8: ...200 1 800 60 1 800 3 000 63 3 000 6 000 65 5 Spectrum due to modulation 6 000 71 DCS1800 PCS1900 OFFSET from Carrier KHz Max dBm 100 0 5 200 30 250 33 400 60 600 1 200 60 1 200 1 800 60 1 800 3 000 65 3 000 6 000 65 6 000 73 EGSM900 OFFSET from Carrier KHz Max dBm Spectrum due to switching 400 19 6 transient 600 21 1 200 21 1 800 24 ...

Page 9: ...S PCS BER Class II 2 103dBm 8 SLR Sending Loudness Ratio 8 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 0 12 9 Sending Response 1 000 0 6 2 000 4 6 3 000 4 6 3 400 4 9 4 000 0 10 RLR Receiver Loudness Ratio 2 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 2 7 500 5 11 Receiving Response 1 000 0 5 3 000 2 5 3 400 2 10 4 000 2 Mean that adopt a straight line in between 300Hz 1000Hz to be Max L...

Page 10: ...e 2 PC 3 Battery 3 8 V Li ion Battery How to user Leo download tool 2 1 Install Leo Download tool Choose I accept the terms in the license agreement Type user name organization You could type any anything or just follow it up 2 Software Download Procedure ...

Page 11: ...2 Software Download Procedure 12 Select default folder Press Install ...

Page 12: ...2 Software Download Procedure 13 Press Finish Enable Leo Download tool ...

Page 13: ...2 Software Download Procedure 14 2 2 Connect Download cable with computer and mobile 2 3 Install SW Select COM port Maybe it will show different COM because of we use different computer ...

Page 14: ...are Download Procedure 15 Press Setting and then you will see Multiport Data folder Change it to the folder which you store the SW Select the Pcs file and press open After few seconds you will see below screen ...

Page 15: ...2 Software Download Procedure 16 Press Yes After you see the pink cycle long press power on key and then you will see below picture ...

Page 16: ... 1 Install battery and power on phone 2 4 2 Press 8 7 8 SIM card not installed or 8 7 8 SIM card installed to enter service mode 2 4 3 Select 3 Version 1 Version Info Summary to check Software Version 2 4 4 Quickly to check SW version 8 3 7 5 2 4 5 Quickly to change to English language 0 8 8 6 Send Key ...

Page 17: ...3 Assembly and Disassembly 18 Tools Torque screwdriver no 6 set Pair of tweezers Guitar Pick 3 1 Disassembly i Take off battery cover 3 Assembly and Disassembly ...

Page 18: ...3 Assembly and Disassembly 19 ii Release 4 screws from B Cover iii Use the Guitar Pick to take off A Cover iv Remove the Receiver and Key Pad from A Cover ...

Page 19: ...3 Assembly and Disassembly 20 v Take off the Main Board from B Cover Receiver Keypad ...

Page 20: ...3 Assembly and Disassembly 21 vi Take off the Loud Speaker Vibrator side keys BATT connect and from B Cover Side Keypad Vibrate Loud SPK BATT connect ...

Page 21: ...3 Assembly and Disassembly 22 vii Take off the LCM from Main Board 1 Release the hook of LCM cover from back side 2 Release the LCM connect from Main Board 3 Take off LCM from LCM place ...

Page 22: ...3 Assembly and Disassembly 23 viii Take off the LCM from Main Board 3 2 Assembly Please do the reverse steps of disassembly for assembly phone ...

Page 23: ...SIM card in side In the software of the phone there is a built in service functionality that allows you to test some of the functions of the phone This is how it looks 1 Auto test 12 Receiver 2 BT Mode ADC 3 Version 14 Charger 4 Resource BIN 15 Headset 5 Echo Loop 16 RTC 6 Keypad 17 MTBF 7 Vibrator 18 UART 8 Loud SPK 19 Memory Card 9 Ring Tone 20 Nand Flash 10 LED 21 Camera 11 LCD 22 Total call ti...

Page 24: ...hat the antenna Flex Film Fig 1 2 is not mechanical damaged dirty or oxidized Replace it if necessary On Off problems Make a general visual inspection for corrosion or oxidation from liquid damage Check that the battery connecter pins Fig 2 1 are dirty or oxidized If necessary clean the battery pads Check that the Battery Fig 2 2 is not mechanical damaged dirty or oxidized Change it if necessary F...

Page 25: ... Receiver is working properly Check Receiver and receiver cconnector Fig 3 1 Microphone 1 Turn on the phone Go to service test menu choose 5 Echo Loop An audio loop is activated check that the Microphone is working properly Check that the Microphone Fig 4 1 is not mechanical damaged dirty or oxidized Replace it if necessary Fig 3 1 Fig 4 1 ...

Page 26: ...uld see a pattern check that no lines or pixels are missing and that there are no discolorations If necessary replace the LCM If all segments are missing check that the LCD connector Fig 5 1 and LCD FPC is not mechanical damaged dirty or oxidized Turn the phone on Go to service test menu choose 10 LED The illumination should start flashing Fig 5 2 Check that all 12 Keypad LEDs have the same illumi...

Page 27: ...be able to turn on and show charging in the Display Check that the system connector Fig 6 1 is incorrectly soldered not mechanical damaged dirty or oxidized Replace it if necessary SIM Problems Make a general visual inspection for corrosion or oxidation from liquid damage Insert a SIM card with known function If the display shows Insert card there is a SIM problem If it shows Insert correct card t...

Page 28: ... shown in the Main display Replace the Metal dome If necessary Fig 8 1 Check that the mechanical response feels normal and that all the keys had been shown in the Main display Check the keypad connecter Fig 8 2 Data Communication Problems If no communication is accomplished with the system connector Make a general visual inspection for corrosion or oxidation from liquid damage Check that the syste...

Page 29: ... liquid damage according to point Turn on the phone Go to service test menu choose 16 RTC press any key to check that the RTC is working properly Check that the clock is working and that it does not start up with 00 00 when a battery is mounted Replace the Backup battery if necessary Fig 10 1 Fig 10 1 ...

Page 30: ... U400 pin 32 3 8V Replace the U400 Check the voltage of the following pins at U400 VCORE_C407 1 8V VDD_C408 2 7V AVDD_C409 2 8V Replace the U400 VMEM_C411 2 7V VBAT_C405 3 8V Check the X100 32 768KHZ Change X100 Check the U603_C642 26MHZ Change U603 The Phone Will Power On NO NO NO NO NO YES YES YES YES YES ...

Page 31: ...N 3 N C PIN3 GND Vcore 1 2V Vtrc 1 2V PIN3 N C Vcore 1 8V Vtrc 1 5V R404 100K R404 100K 1 2 R401 100K R0402 R401 100K R0402 D400 RB520S 30TE61 SC79 D400 RB520S 30TE61 SC79 1 2 TP401 TP60MIL TP 1 5 TP401 TP60MIL TP 1 5 U400 PMIC_MT6305BN CY QFN48P U400 PMIC_MT6305BN CY QFN48P PWRKEY 32 PWRBB 33 SRCLKEN 31 SIMSEL 13 SIMVCC 12 VmSEL 45 VaSEL 44 BATUSE 42 LEDEN 36 ALERTEREN 35 VIBRATOREN 34 CHRIN 1 CH...

Page 32: ... Check I O 300 and F400 Check U401 and using the charge Pin 1 2 5 6 3 4V Pin 3 5 3V Pin4 4 5V Pin7 8 3 1V Check RN400 and BT400 Fixed this issue Change other BATT or Charger Replace the R413 Change I O 300 or F400 Change U401 Change BT400 or RN 400 NO NO NO NO NO YES YES YES YES YES YES RN400 U401 F400 I O 300 ...

Page 33: ...P 1 5 R413 0 33R R0805 R413 0 33R R0805 TP404 TP60MIL TP 1 5 TP404 TP60MIL TP 1 5 U400 PMIC_MT6305BN CY QFN48P U400 PMIC_MT6305BN CY QFN48P PWRKEY 32 PWRBB 33 SRCLKEN 31 SIMSEL 13 SIMVCC 12 VmSEL 45 VaSEL 44 BATUSE 42 LEDEN 36 ALERTEREN 35 VIBRATOREN 34 CHRIN 1 CHRDET 6 CHRCNTL 5 GATEDRV 2 NC DANODE 3 ISENSE NC 4 SIMIO 9 SIMRST 10 SIMCLK 11 SIO 14 SRST 15 SCLK 16 BATDET 43 IC_GND 49 ESD411 ESD ESD...

Page 34: ...ck Problem Start Change U603 or X100 Check R637 Replace R637 Check U603_26MHZ Check X100_32 768HZ Check U602 Change U602 Check U100 Change U100 Fixed this issue Check C642 R615 Change C642 R615 NO NO NO NO NO YES YES YES YES YES YES ...

Page 35: ...RTCK P3 JTCK P3 GPIO9_SDA P2 5 GPIO0_LCM_BOOST_EN P4 GPIO4_FMRST P5 GPIO7_BLED_EN P3 GPIO6_GLED_EN P3 GPIO5_RLED_EN P3 GPIO2_UR1_CTL P2 U100A U100A GPIO0 DSP_GPO3 U2 GPIO1 DICK M19 GPIO2 DID L15 GPIO3 DIMS L16 GPIO4 DSP_CLK DSPLCK C17 GPIO5 AHB_CLK DSPLD3 A19 GPIO7 SLOW_CLK DSPLD1 B17 SYSCLK A2 XOUT B1 XIN C2 BBWAKEUP C1 TESTMODE D3 JTRST E4 JTCK E3 JTDI E2 JTMS E1 JTDO F5 JRTCK F4 WATCHDOG R18 US...

Page 36: ...Start Check C222 1 8V C223 2 8V Replace C222 and C223 Or check U400 Check Camera and J201 change Camera and J201 Check TP201 TP202 TP205 Replace R223 R224 Camera will work properly NO NO NO YES YES YES YES TP202 TP201 J201 C223 C222 TP205 ...

Page 37: ...MIL TP20MIL TP208 TP20MIL TP20MIL TP208 TP20MIL TP20MIL B208 MMZ1005S102C R0402 B208 MMZ1005S102C R0402 R224 0R R0402 R224 0R R0402 1 2 R208 MMZ1005S102C R0402 R208 MMZ1005S102C R0402 TP201 TP20MIL TP20MIL TP201 TP20MIL TP20MIL J201 7504924_25P 6296 025 J201 7504924_25P 6296 025 Y1 23 Y3 21 Y2 19 PCLK 17 Y5 20 DGND 15 Y6 18 XVCLK1 13 DOVDD 11 HREF 9 Y0 24 Y4 22 Y7 16 Y8 14 Y9 12 DVDD 10 PWDN 8 RES...

Page 38: ... 39 Audio Problem Receiver problem Start Check the Receiver Change Receiver Check LS201 pad Clean LS201 pad Check the C228 C229 C230 Change C228 C229 C230 if those short Receiver will work properly YES YES YES NO NO NO ...

Page 39: ...05S102C R0402 B206 MMZ1005S102C R0402 ESD210 ESD ESD210 ESD 1 1 2 2 LS201 TP35MIL SDRP0615F J04 F1 G LS201 TP35MIL SDRP0615F J04 F1 G 1 2 C230 33P C0402 C230 33P C0402 C228 100P C0402 C228 100P C0402 ESD209 ESD ESD209 ESD 1 1 2 2 B207 MMZ1005S102C R0402 B207 MMZ1005S102C R0402 C229 33P C0402 C229 33P C0402 C228 C229 C230 LS201 ...

Page 40: ...oubleshooting 41 Audio Problem MIC problem Start Check the MIC_U201 Change MIC Check R203 R206 Change R203 R206 Check the C200 C208 C205 Change C200 C208 C205 MIC will work properly YES YES YES YES NO NO NO ...

Page 41: ... C0402 C211 33P C0402 C212 33P C0402 C212 33P C0402 ESD205 ESD ESD205 ESD 1 1 2 2 C202 10U C0805 C202 10U C0805 C205 100P C0402 C205 100P C0402 R202 N C_0R R0402 R202 N C_0R R0402 1 2 C208 100N C0402 C208 100N C0402 C200 100N C0402 C200 100N C0402 D201 PESD5V0L5UY SC88 D201 PESD5V0L5UY SC88 6 4 5 3 2 1 T200 VPORT0402100MV05_INPAQ R0402 T200 VPORT0402100MV05_INPAQ R0402 1 2 B202 MMZ1608S102C L0603 ...

Page 42: ...Problem Louder SPK problem Start Check B213 B212 Change B212 B213 Check LS203 and SPK Change LS203 or SPK Check R212 R217 Change C228 C229 C230 Louder SPK will work properly Check U200 Change U200 YES YES YES YES YES NO NO NO NO ...

Page 43: ... C234 N C_100N C0402 U200 LM2890 NCP2890 D U200 LM2890 NCP2890 D SHUTDOWN C3 BYPASS C1 IN A3 IN A1 Vo1 A2 VDD B3 GND0 B1 Vo2 C2 GND1 B2 C237 100N C0402 C237 100N C0402 SPK1P SPK1N Louder SPK connector AAC SPK DMS1608F 02 PC G B213 0R L0402 B213 0R L0402 1 2 ESD212 ESD ESD212 ESD 1 1 2 2 E201 N C_SPK_PROBE AS5016 A0G1E E201 N C_SPK_PROBE AS5016 A0G1E C242 33P C0402 C242 33P C0402 C243 100P C0402 C2...

Page 44: ...isplay Problem Start Check U403_C429 C434 C428 Change C429 C434 C428 Check RN401 Replace RN401 Display will work properly Check J402 and LCM FPC Change LCM or Re solder J402 NO NO NO YES YES YES YES RN401 J402 U403 C428 C429 ...

Page 45: ...A0 P1 NLD0 P1 3 NLD1 P1 3 NLD2 P1 3 NLD3 P1 3 NLD4 P1 3 NLD5 P1 3 NLD6 P1 3 NLD7 P1 3 NLD8 P1 NLD9 P1 NLD10 P1 NLD11 P1 NLD12 P1 NLD13 P1 NLD14 P1 NLD15 P1 NLD16 P1 NLD17 P1 GPIO18_LCM_ID P1 J402 Z_TYPE_35P FH26 35S 0 3SHW J402 Z_TYPE_35P FH26 35S 0 3SHW DB15 26 DB14 25 DB13 24 DB12 23 DB11 22 DB10 21 DB9 20 DB8 19 DB7 18 DB6 17 DB5 16 DB4 15 DB3 14 GND 1 GND 2 VCI 3 VCC 4 IOVcc 5 ID 6 CS 7 RS 8 W...

Page 46: ...Troubleshooting 47 Keypad Problem Start Keypad will work properly Check keypad Change keypad Check J300 Replace J300 Check D306 D307 D308 Change D306 D307 D308 YES YES YES YES NO NO NO D307 D306 D308 J300 ...

Page 47: ...D Connector Components close to connector D307 PESD5V0L5UY SC88 D307 PESD5V0L5UY SC88 6 4 5 3 2 1 D306 PESD5V0L5UY SC88 D306 PESD5V0L5UY SC88 6 4 5 3 2 1 D308 PESD5V0L5UY SC88 D308 PESD5V0L5UY SC88 6 4 5 3 2 1 J300 FH26 29S 0 3SHW 05 FH26 29S 0 3SHW J300 FH26 29S 0 3SHW 05 FH26 29S 0 3SHW GND2 31 GND1 30 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 1...

Page 48: ... Troubleshooting 49 VIB Problem Start VIB will work properly NO NO NO YES YES YES YES Check J401 Clean J401 Check D411 and C423 Change D411 or C423 Check U100 and U400 Change U100 or U400 C423 D411 J401 ...

Page 49: ...S 30TE61 SC79 D400 RB520S 30TE61 SC79 1 2 TP401 TP60MIL TP 1 5 TP401 TP60MIL TP 1 5 R402 100K R0402 R402 100K R0402 C409 4U7 C0603 C409 4U7 C0603 R415 3K9 R0402 R415 3K9 R0402 1 2 R405 4 7R R0603 R405 4 7R R0603 1 2 C411 4U7 C0603 C411 4U7 C0603 ESD414 ESD ESD_PAD ESD414 ESD ESD_PAD 1 1 2 2 V BT401 XH414HIV01E 3 3V PAS414SR VG1 V BT401 XH414HIV01E 3 3V PAS414SR VG1 1 2 C401 100N C0402 C401 100N C0...

Page 50: ...4 Troubleshooting 51 FM Problem Start FM will work properly YES YES YES YES NO NO NO Check U502 Change U502 Check R501 Change R501 Check C505 C504 C506 Change C505 C504 C506 R501 C504 C506 U502 C505 ...

Page 51: ... C504 22N C0402 1 2 U502 SI4700 FMM24PA A U502 SI4700 FMM24PA A GND1 1 FMIP 2 RFGND 3 FMIN 4 GND 5 GND2 6 RST 7 SEN 8 SCLK 9 SDIO 10 RCLK 11 VIO 12 VD 13 GND 14 ROUT 15 LOUT 16 GND 17 VA 18 GPIO3 19 GPIO2 20 GPIO1 21 NC2 22 NC3 23 GND3 24 GND 25 C505 100P C0402 C505 100P C0402 1 2 C506 2 2U C0603 C506 2 2U C0603 1 2 TP501 TP35MIL TP 0 7 TP501 TP35MIL TP 0 7 I2 C test point at near CMOS sensor ...

Page 52: ...C C0402 C616 N C C0402 C616 N C C0402 R604 15K R0402 R604 15K R0402 C620 22P C0402 C620 22P C0402 C613 1P C0402 C613 1P C0402 1 2 U600 AWT6166 AWT6166 U600 AWT6166 AWT6166 DPCS_IN 1 EGSM_IN 7 VRAMP 6 TXEN 3 CEXT 5 VBAT 4 BS 2 DPCS_OUT 16 EGSM_OUT 10 VCC2 18 VCC2 8 VCCOUT 13 GND 9 GND 11 GND 12 GND 14 GND 15 GND 17 GND 19 C647 2U2 C0603 C647 2U2 C0603 C657 1N C0402 C657 1N C0402 R603 10K R0402 R603...

Page 53: ...4 Troubleshooting 54 7312 RF Placement PX Path TX Path ...

Page 54: ...0 pin2 BS 2 8V Band select logic input U600 pin3 TXEN 2 8V TX enable logic input U600 pin4 VBAT 3 8V 3 4 4 2V Battery supply connection U600 pin5 CEXT by pass U600 pin6 VRAMP Analog signal used to control the output power U600 pin7 EGSM_IN EGSM RF input U600 pin10 EGSM_OUT EGSM RF output U600 pin16 DPCS_OUT DCS PCS RF output ...

Page 55: ...4 Troubleshooting 56 T R Switch U601 control signal LB_TX VC1 HB_TX VC2 PCS_RX VC3 EGSM TX 1 0 0 DCS PCS TX 0 1 0 PCS RX 0 0 1 EGSM DCS RX 0 0 0 ...

Page 56: ...scription U601 pin1 D_RX DCS RX U601 pin2 VC3 2 8V PCS RX control signal U601 pin3 P_RX PCS RX U601 pin4 VC2 2 8V DCS PCS TX control signal U601 pin5 D_TX DCS PCS TX U601 pin7 G_TX GSM TX U601 pin9 ANT Antenna port U601 pin10 VC1 2 8V EGSM TX control signal U601 pin11 G_RX GSM RX ...

Page 57: ...4 Troubleshooting 58 RF transceiver U602 ...

Page 58: ...ing 59 VCTCXO U603 Test point part Function Typical value Description U603 pin1 VCONTROL 1 38V Automatic frequency control voltage AFC U603 pin3 OSCOUT 26MHz Reference frequency output U603 pin4 VCC 2 8V Power supply ...

Page 59: ...4 Troubleshooting 60 RF TX Problem Start TX work properly YES YES YES YES NO NO NO Check U601 Change U601_T R switch Check U602 Change U602_Transceiver Check U600 Change U600_PA U600 U602 U601 ...

Page 60: ...4 Troubleshooting 61 RF RX Problem Start RX will work properly YES YES YES YES NO NO NO Check U602 Change U602_ Transceiver Check U601 Change U601_T R switch Check J601 Change J601 ...

Page 61: ...4 Troubleshooting 62 U602 U601 J601 ...

Page 62: ...5 Circuit Diagrams 63 SYSTEM BLOCK DIAGRAM 5 CIRCUIT DIAGRAMS ...

Page 63: ...SW SW112 KSW 1 2 ESD 105 ESD ESD 105 ESD 1 1 2 2 SW108 KSW SW108 KSW 1 2 LED_COM VBATBB PWRKEY P4 KCOL2 P1 KCOL3 P1 KCOL1 P1 KCOL0 P1 KROW0 P1 KROW3 P1 KROW1 P1 KROW2 P1 KROW5 P1 KROW4 P1 LED_COM P4 GND2 GND1 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 MICIN MICIN MICBIASP MICN0 P1 MICP0...

Page 64: ...608S102C L0603 SPK1P SPK1N SPK SPK VBATBB MP3_OUTR P1 MP3_OUTL P1 GPIO1_OP1_EN P1 Louder SPK connector Components in metal case AAC SPK DMS1608F 02 PC G On semi NCP2890 D R217 N C_20K R0402 R217 N C_20K R0402 B213 0R L0402 B213 0R L0402 1 2 ESD212 ESD ESD212 ESD 1 1 2 2 R212 20K R0402 R212 20K R0402 C238 2U2 C0603 C238 2U2 C0603 E201 N C_SPK_PROBE AS5016 A0G1E E201 N C_SPK_PROBE AS5016 A0G1E C239 ...

Page 65: ...02C R0402 B207 MMZ1005S102C R0402 C229 33P C0402 C229 33P C0402 VDD GPIO8_SCL P1 2 GPIO12_32KHz P1 GPIO9_SDA P1 2 GPIO4_FMRST P1 GPIO11_FMEN P1 FM_INR P1 FM_INL P1 FM_ANT P2 ENIT1_FM_INT P1 R501 0R R0402 R501 0R R0402 1 2 C504 22N C0402 C504 22N C0402 1 2 U502 SI4700 FMM24PA A U502 SI4700 FMM24PA A GND1 1 FMIP 2 RFGND 3 FMIN 4 GND 5 GND2 6 RST 7 SEN 8 SCLK 9 SDIO 10 RCLK 11 VIO 12 VD 13 GND 14 ROU...

Page 66: ... VRGE_IN K6 VRGE_EN K5 XTAL_IN K3 XTAL_OUT J3 VSS_VCO G1 VSS_VCO G2 VSS_RADIO D2 VSS_RADIO E2 VSS_RADIO F2 VSS_PADS A1 VSS_PADS A2 VSS_PADS D9 VSS_PADS J9 VSS_PADS K10 VSS_USB F3 VSS_ANA J2 VSS_ANA1 J4 VSS_ANA2 K2 VSS_CORE E9 NC A4 NC1 A5 NC2 A6 NC3 A7 NC4 A8 NC5 A9 NC6 A10 NC7 B5 NC8 B6 NC9 B7 NC10 B8 NC11 B10 NC12 G3 NC13 H2 NC14 H3 NC15 H6 NC16 J1 NC17 J6 NC18 J7 NC19 K1 NC20 K7 PCM_SYSNC G10 P...

Page 67: ... 68 ...

Page 68: ...15 ED15 V15 WATCHDOG R18 USB_DP P16 USB_DM P17 MCCM0 P19 MCDA0 N15 MCDA1 N16 MCDA2 N17 MCDA3 N18 MCPWRON N19 MCWP GPIO15 M16 MCINS GPIO14 M17 MCCK M18 LPCE1B GPIO24 NCEB1 MCU_TID0 K2 NRNB GPIO25 DSP_TID1 MCU_TID1 P5 NCLE GPIO26 DSP_TID2 MCU_TID2 P4 NALE GPIO27 DSP_TID3 MCU_TID3 P3 NWEB GPIO28 DSP_TID4 MCU_DID P2 NREB GPIO29 DSP_TID5 MCU_DFS P1 NCEB0 GPIO30 DSP_TID6 MCU_DCK R4 IRDA_PDN GPIO39 G16 I...

Page 69: ...R0402 R207 200R R0402 1 2 B204 MMZ1005S102C L0402 B204 MMZ1005S102C L0402 ESD205 ESD ESD205 ESD 1 1 2 2 R205 1K5 R0402 R205 1K5 R0402 C215 22U C0805 C215 22U C0805 C202 10U C0805 C202 10U C0805 ESD203 ESD ESD203 ESD 1 1 2 2 C238 2U2 C0603 C238 2U2 C0603 E201 N C_SPK_PROBE AS5016 A0G1E E201 N C_SPK_PROBE AS5016 A0G1E C214 33P C0402 C214 33P C0402 R211 1K R0402 R211 1K R0402 C204 33P C0402 C204 33P ...

Page 70: ... NC D10 NC E10 NC F5 NC F6 NC G5 NC G6 NC G8 NC K6 NC L1 NC L2 NC L3 NC L4 NC L5 NC L10 NC M1 NC M2 NC M9 NC M10 Vccn F1 NC A1 NC A2 NC A9 NC A10 NC B1 T300 SFI0402 050E100NP LF C0402 T300 SFI0402 050E100NP LF C0402 1 2 D301 RB520S 30TE61 SC79 D301 RB520S 30TE61 SC79 1 2 TP302 TP35MIL TP 0 7 TP302 TP35MIL TP 0 7 R308 1K5 R0402 R308 1K5 R0402 ESD217 ESD ESD217 ESD 1 1 2 2 SW320 SW_P B EVQ9P701E SW3...

Page 71: ...00K 1 2 BT400 BATT_CONN BTP 03DC4 BT400 BATT_CONN BTP 03DC4 1 1 2 2 3 3 C408 4U7 C0603 C408 4U7 C0603 C410 1U C0402 C410 1U C0402 C423 56P C0402 C423 56P C0402 R401 100K R0402 R401 100K R0402 ESD413 ESD ESD_PAD ESD413 ESD ESD_PAD 1 1 2 2 U402 R1114Q331B TR SC 82AB U402 R1114Q331B TR SC 82AB CE 1 GND 2 VOUT 3 VIN 4 D400 RB520S 30TE61 SC79 D400 RB520S 30TE61 SC79 1 2 TP401 TP60MIL TP 1 5 TP401 TP60M...

Page 72: ...2 1 2 C504 22N C0402 C504 22N C0402 1 2 J500 SIM_SOCKET_217 010 606 WL629D3 T02 7F J500 SIM_SOCKET_217 010 606 WL629D3 T02 7F CLK 1 I O 2 RST 3 VPP 4 VCC 5 GND 6 U502 SI4700 FMM24PA A U502 SI4700 FMM24PA A GND1 1 FMIP 2 RFGND 3 FMIN 4 GND 5 GND2 6 RST 7 SEN 8 SCLK 9 SDIO 10 RCLK 11 VIO 12 VD 13 GND 14 ROUT 15 LOUT 16 GND 17 VA 18 GPIO3 19 GPIO2 20 GPIO1 21 NC2 22 NC3 23 GND3 24 GND 25 ESD505 ESD E...

Page 73: ...C616 N C C0402 R604 15K R0402 R604 15K R0402 C620 22P C0402 C620 22P C0402 C613 1P C0402 C613 1P C0402 1 2 U600 AWT6166 AWT6166 U600 AWT6166 AWT6166 DPCS_IN 1 EGSM_IN 7 VRAMP 6 TXEN 3 CEXT 5 VBAT 4 BS 2 DPCS_OUT 16 EGSM_OUT 10 VCC2 18 VCC2 8 VCCOUT 13 GND 9 GND 11 GND 12 GND 14 GND 15 GND 17 GND 19 C647 2U2 C0603 C647 2U2 C0603 C657 1N C0402 C657 1N C0402 R603 10K R0402 R603 10K R0402 RFT10 L3_6MI...

Page 74: ...E8 PIO3 B4 PIO2 B3 PIO1 B2 PIO0 B1 SPI_CLK C10 SPI_MISO B9 SPI_MOSI C8 SPI_CSB C9 USB_DP J8 USB_DN K8 UART_RX H9 UART_TX J10 UART_CTS H8 UART_RTS H7 TEST_EN C6 RESET C7 REAETB D8 AIO0 H4 AIO1 H5 AIO2 J5 C707 10N C0402 C707 10N C0402 1 2 TP709 TP 0 7MM TP 0 7 TP709 TP 0 7MM TP 0 7 J700 MM8430 2600B MM8430 2600B J700 MM8430 2600B MM8430 2600B 4 3 1 2 5 6 L700 22NH L0402 L700 22NH L0402 1 2 R702 N C_...

Page 75: ...2 D108 LED190 D108 LED190 1 2 SW116 KSW SW116 KSW 1 2 ESD 103 ESD ESD 103 ESD 1 1 2 2 H6 TP D1 5 TP D1 5 H6 TP D1 5 TP D1 5 R103 200R R0402 R103 200R R0402 R104 200R R0402 R104 200R R0402 SW107 KSW SW107 KSW 1 2 SW101 KSW SW101 KSW 1 2 R112 200R R0402 R112 200R R0402 R110 200R R0402 R110 200R R0402 D109 LED190 D109 LED190 1 2 H3 TP D1 7 TP D1 7 H3 TP D1 7 TP D1 7 SW119 KSW SW119 KSW 1 2 H2 TP D1 7...

Page 76: ... 77 6 PCB LAYOUT ...

Page 77: ... 78 6 PCB LAYOUT ...

Page 78: ... 79 1 12 15 16 46 48 30 27 26 21 13 32 33 34 36 37 42 39 41 38 40 43 10 44 35 31 28 30 29 22 23 25 47 24 20 17 19 14 45 2 3 4 5 8 6 7 9 6 11 7 EXPLODED VIEW REPLACEMENT PART LIST 7 1 EXPLODED VIEW ...

Page 79: ... 80 ...

Page 80: ...HSC085TK_HITACHI 3290020000007A 9 Z600 GSM Band SAW Filter SFSY0032001 GP_FIL SAW_EFCH942MTCA7_942 5MHz_PANAS ONIC 3260000000000 D 10 Z602 PCS Band SAW Filter SFSY0032101 GP_FIL SAW_EFCH1960TCA1_1960MHz_PANAS ONIC 3260000000010 D 11 Z601 DCS Band SAW Filter SFSY0032201 GP_FIL SAW_EFCH1842TCA7_1842 5MHz_PANA SONIC 3260000000020 D 12 U701 BT Band pass filter and Balun SFSY0032301 GP_FIL BALANCE_DBF8...

Page 81: ... SPEAKER POGO PIN ENTB0004101 GP_CON SPEAKER CONNECTOR_P72 02B1 01_3 5mm_2PIN_ACRON 314021000005J M 31 J201 FPC CONNECTOR ENQY0013501 GP_CON FPC CONNECTOR_04 6296 025 210 883_0 3mm_25PIN_KYOCERA ELCO 3140120000010Z 32 IO300 USB CONNECTOR ENSY0019601 GP_CON MINI USB CONNECTOR_MNC40 5K5U11_0 8mm_5PIN_ACON 31401800000328 33 BT401 BACKUP BATTERY SBPL0087401 GP_BACKUP BATTERY_Li ion_3 3V_0 015mAh_XH414...

Page 82: ...S1637BPB1P_16mm_8ohm_ 89dB_EM TECH 313000000000LZ 51 BATTERY CONNECTOR ENTB0003901 GP_CON BATTERY CONNECTOR_BTP 03DC4_2 5mm_3PIN_OCTEKCONN 314002000002FA 52 VIBRATOR SJMY0008801 GP_VIBRATOR Bar Type_JT0508 30CSRB 1_ 5 9 1_JNTECH 3200000000009V 53 ANT EMBEDDED SNGF0022001 GP_ANT EMBEDDED_7312_TRI BAND_GREEN_PERLOS 3300017312008A 54 REAR COVER MCJN0058701 GP_REAR CABINET_BLACK_7312_PC_GABEUL PLASTIC...

Page 83: ...FPC MYLAR MTAZ0178801 GP_ADHESIVE TAPE_7312_MYLAR_LCM FPC_SIAU CHON 408005731201KL 69 MIC RUBBER MCCZ0023301 GP_CUSHION_7312_SILICON RUBBER_MIC_ALL BLESSING 408003731200E Q 70 LCM MYLAR MTAZ0178901 GP_ADHESIVE TAPE_7310_MYLAR_SIAU CHON 408005731000KL 71 PROTECTIVE FILM MPHY0009301 PROTECTIVE FILM_PVC_7310_MAIN LENS_58 71 x 44 2_I mobile_SIAU CHON 208070900000KL Accessory 72 BATTERY PACK SBPL008750...

Page 84: ...Note ...

Page 85: ...Note ...

Search results

Summary of Contents for KG300

Reviews:

Related manuals for KG300

Brands by name

Popular brands

LG KG300, Service Manual

Search results

Summary of Contents for KG300

Reviews:

Related manuals for KG300

Brands by name

Popular brands