LG KP135 Service Manual Download Page 30

Page: 30 / 131

- 31 -

3. TECHNICAL BRIEF

3.8 Keypad Switches and Scanning

The key switches are metal domes, which make contact between two concentric pads on the keypad

layer of the PCB when pressed. There are 26 switches (Normal Key 24EA, Volume up down side key,

PWR down side key), connected in a matrix of 5 rows by 5 columns, as shown in Figure 3-11, except

for the power switch (SW301), which is connected independently. Functions, the row and column lines

of the keypad are connected to ports of AD6724. The columns are outputs, while the rows are inputs

and have pull-up resistors built in. When a key is pressed, the corresponding row and column are

connected together, causing the row input to go low and generate an interrupt. The columns/rows are

then scanned by AD6724 to identify the pressed key.

LGE Internal Use Only

Figure 3.8 Keypad Switches and Scanning

CAM

SEND

LEFT

RIGHT

DOWN

SEL

C312

SW320

C302

SW316

27p

C301

27p

SW317

SW322

SW318

SW303

SW300

SW301

SW312

SW307

C313

C314

27nH

R316

L302

680

R311

680

SW309

SW310

C306

SW305

C304

27p

SW314

L300

27nH

680

R322

680

R319

680

R307

SW315

SW319

27nH

L301

27nH

L304

C311

SW313

SW308

680

R323

27nH

L303

680

R324

SW321

SW302

R302

680

R325

EVL5M02200

VA302

SW311

KEY_ROW4

SW306

KEY_ROW0

KEY_COL0

KEY_COL1

KEY_COL2

KEY_COL3

KEY_ROW1

KEY_ROW2

KEY_ROW3

END

R300

VBAT

10K

SW304

R303

680

POWERKEY

Summary of Contents for KP135

Page 1: ...Service Manual Model KP135 Service Manual KP135 Date May 2008 Issue 1 0 Internal Use Only ...

Page 2: ... 61 4 9 Speaker Trouble 64 4 10 SIM Card Interface Trouble 66 4 11 Earphone Trouble 68 4 12 KEY backlight Trouble 70 4 13 Receiver Trouble 72 4 14 Microphone Trouble 74 4 15 RTC Trouble 76 4 16 FM Radio 78 5 DOWNLOAD 81 5 1 Download 81 6 BLOCK DIAGRAM 87 7 CIRCUIT DIAGRAM 89 8 BGA IC Pin Check 95 9 PCB LAYOUT 99 10 ENGINEERING MODE 101 10 1 BB Test MENU 1 102 10 2 RF Test MENU 2 103 10 3 MF mode M...

Page 4: ...nauthorized use B Incidence of Harm If a telephone company determines that the equipment provided to customer is faulty and possibly causing harm or interruption in service to the telephone network it should disconnect telephone service until repair can be done A telephone company may temporarily disconnect service as long as repair is not done C Changes in Service A local telephone company may ma...

Page 5: ...d engines or electric motors may cause problems H Electrostatic Sensitive Devices ATTENTION Boards which contain Electrostatic Sensitive Device ESD are indicated by the sign Following information is ESD handling Service personnel should ground themselves by using a wrist strap when exchange system boards When repairs are made to a system board they should spread the floor with anti static mat whic...

Page 6: ...al to Analog Converter DCS Digital Communication System dBm dB relative to 1 milli watt DSP Digital Signal Processing EEPROM Electrical Erasable Programmable Read Only Memory ESD Electrostatic Discharge FPCB Flexible Printed Circuit Board GMSK Gaussian Minimum Shift Keying GPIB General Purpose Interface Bus GSM Global System for Mobile Communications IPUI International Portable User Identity IF In...

Page 7: ... RLR Receiving Loudness Rating RMS Root Mean Square RTC Real Time Clock SAW Surface Acoustic Wave SIM Subscriber Identity Module SLR Sending Loudness Rating SRAM Static Random Access Memory PSRAM Pseudo SRAM STMR Side Tone Masking Rating TA Travel Adapter TDD Time Division Duplex TDMA Time Division Multiple Access UART Universal Asynchronous Receiver Transmitter VCO Voltage Controlled Oscillator V...

Page 8: ...Bm DCS 102dBm TX output power GSM850 32 5dBm Level 5 DCS 29 5dBm Level 0 GPRS compatibility Class 10 SIM card type 3V 1 8V Small Display MAIN TFT 128 128 pixel 65K CSTN Hard icons Key Pad Status Indicator 0 9 Up Down Left Right Ok Navigation Key Menu Key Clear Key Confirm Key Send Key PWR Key Camera Key Hot Key ANT Internal EAR Phone Jack Yes mono PC Synchronization Yes Speech coding EFR FR HR AMR...

Page 9: ...s Peak 20 degrees 3 Frequency Error 0 1 ppm GSM850 Level Power Toler Level Power Toler 5 33 dBm 2dB 13 17 dBm 3dB 6 31 dBm 3dB 14 15 dBm 3dB 7 29 dBm 3dB 15 13 dBm 3dB 8 27 dBm 3dB 16 11 dBm 5dB 9 25 dBm 3dB 17 9 dBm 5dB 10 23 dBm 3dB 18 7 dBm 5dB 11 21 dBm 3dB 19 5 dBm 5dB 4 Power Level 12 19 dBm 3dB PCS Level Power Toler Level Power Toler 0 30 dBm 2dB 8 14 dBm 3dB 1 28 dBm 3dB 9 12 dBm 4dB 2 26 ...

Page 10: ... Max dBc 100 0 5 200 30 250 33 400 60 600 1 200 60 1 200 1 800 60 1 800 3 000 63 3 000 6 000 65 5 Output RF Spectrum 6 000 71 due to modulation PCS Offset from Carrier kHz Max dBc 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 GSM850 Offset from Carrier kHz Max dBm Output RF Spectrum 400 19 6 due to switching transient 600 21 1 200 21 1 800 24 ...

Page 11: ...ons Conduction Emission Status GSM850 8 Bit Error Ratio BER Class II 2 439 102 dBm DCS BER Class II 2 439 102 dBm 9 RX Level Report Accuracy 3 dB 10 SLR 8 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 0 12 11 Sending Response 1 000 0 6 2 000 4 6 3 000 4 6 3 400 4 9 4 000 0 12 RLR 2 3 dB Frequency Hz Max dB Min dB 100 12 200 0 300 2 7 500 5 13 Receiving Response 1 000 0 5 3 000 2 5 3 400 2 10 4 ...

Page 12: ...ncy 2 5ppm 13 MHz tolerance 19 32 768KHz tolerance 30ppm At least 65 dBspl under below conditions 20 Ringer Volume 1 Ringer set as ringer 2 Test distance set as 50 cm 21 Charge Current Fast Charge 600 mA Slow Charge 120 mA Antenna Bar Number Power 5 92 dBm 4 100dBm 92 dBm 22 Antenna Display 3 100 dBm 99 dBm 2 103 dBm 100 dBm 1 105 dBm 103 dBm 0 105 dBm Battery Bar Number Voltage Power off 3 56V 0 ...

Page 13: ...y for training and service purposes Item Description Specification 25 Forced shut down Voltage 3 35 0 05V 1 Li ion Battery 26 Battery Type Standard Voltage 3 7 V Battery full charge voltage 4 2 V Capacity 900mAh Switching mode charger 27 Travel Charger Input 100 240 V 50 60 Hz Output 6 6 V 400 mA ...

Page 14: ...ks share common power supply pads to distribute current The output of each PA block and the outputs to the two receive pads are connected to the antenna pad through PHEMT RF switches and a diplexer The GaAs die PHEMT die Silicon Si die and passive components are mounted on a multi layer laminate substrate The assembly is encapsulated with plastic overmold Band selection and control of transmit and...

Page 15: ...e 2 VLOGIC Control logic level selection Standby control 3 VRAMP Analog power control voltage input 4 TX_EN TX RX select mode control 5 BS Band Select mode control 6 DCS_RX DCS Receive RF Output 1805 1880 MHz 7 GSM_RX GSM Receive RF Output 920 960 MHz 8 10 GND RF and DC Ground 11 ANT RF_IN RF_OUT to Antenna 12 16 GND RF and DC Ground 17 GSM_IN RF input 880 915 MHz 18 NC No Connect 19 DCS_IN RF inp...

Page 16: ...ble 3 2 1 Band SW Logic Table Figure 3 2 1 PAM ASM CIRCUIT DIAGRAM Mode VLOGIC Input Control Bits TX_En BS STANDBY 0 X1 X1 GSM_RX 1 0 0 DCS_RX 1 0 1 GSM_TX 1 1 0 DCS_TX 1 1 1 GND5 13 14 GND6 GND7 15 16 GND8 20 GND9 17 GSM_IN GSM_RX 7 18 NC PGND 21 4 TX_EN VBATT 1 2 VLOGIC VRAMP 3 U500 SKY77518 ANT 11 BS 5 DCS_IN 19 6 DCS_RX 8 GND1 GND2 9 GND3 10 12 GND4 ...

Page 17: ...th features automatic calibration and tracking to remove DC offsets The transmitter features a translationloop architecture for directly modulating baseband signals onto the integrated TX VCO The translation loop modulator and TX VCO are extremely low noise removing the need for external SAW filters prior to the PA The AD6548 uses a single integrated LO VCO for both the receive and the transmit ci...

Page 18: ...ut 19 REFIN Crystal Connection 4 VCC_BBI Baseband I TX path supply IP 20 REFINB Crystal Connection 5 SDATA Serial port data 21 REF_OP Reference Frequency Output 6 SCLK Serial port clock 22 QB Q baseband input output 7 SEN Serial port enable 23 Q Q baseband input output 8 N C Not connected 24 VCC_BBQ Baseband Q supply IP 9 VLDO3 TX LDO Output 1 25 RX1900B PCS 1900 LNA input 10 TXOP_LO Transmit O P ...

Page 19: ...rystal and tune its frequency is fully integrated The Oscillator is a balanced implementation requiring the crystal to be connected across 2 pins There is a programmable capacitor array included for coarse tuning of fixed offsets e g crystal manufacturing tolerance and an integrated varactor for dynamic control The oscillator is designed for use with a 26MHz crystal Dedicated control software ensu...

Page 20: ...uction Cache Full Rate Enhanced Full Rate and Half Rate Speech Encoding Decoding Capable of Supporting AMR PDC Speech Algorithms 3 Peripheral Functions Parallel and Serial Display Interface Keypad Interface Flash Memory Interface Page Mode Flash Support 1 8V and 3 0V 64 kbps SIM Interface Universal System Connector Interface Data Services Interface Battery Interface e g Dallas 4 Other Supports 13 ...

Page 21: ... 22 3 TECHNICAL BRIEF LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 3 5 SYSTEM INTERCONECTION OF AD6724 EXTERNAL INTERFACE ...

Page 22: ... Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Signals Description nLCD_MAIN_CS MAIN LCD driver chip enable MAIN LCD driver IC has own CS pin nLCD_RESET This pin resets LCD module This signal comes from AD6724 directly LCD_ID Select LCD module maker 2 4V NEODIS 0V LGIT LCD_RS This pin determines whether the data to LCD module are display data or c...

Page 23: ...g and service purposes Signals Description MLED Current source for backlight LED LCD_BACKLIGHT_CTRL Control LCD backlight level in 16 steps MLED 1 2 This pins are returned paths for backlight LED current source MLED Table 3 5 B2 DESCRIPTION OF LCD BACKLIGHT LED CONTROL Signals Description PA_BAND GPO 3 PAM Band Select ANT_SW GPO 9 Control logic level selection standby control PA_EN GPO 11 Tx Rx Se...

Page 24: ...Table 3 5 in detail LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Signals Description SIM_DATA This pin receives and sends data to SIM card This model can support 3 0 volt and 1 8 volt interface SIM card SIM_CLK Clock 3 25MHz frequency SIM_RST Reset SIM block GPIO_23 Table 3 5 D SIM CONTROL SIGNALS DESCRIPTION Figure 3 5 D2 SIM In...

Page 25: ...batteries Charger initialization trickle charging and Li Ion charging control are implemented in hardware 2 Over voltage protection It will be automatically disabled when the input voltage is lower than 2 5V or high than 6 5V 3 Charging Process Check charger is inserted or not If MP26021 detects that Charger is inserted the CC CV charging starts Exception When battery voltage is lower than 2 6V th...

Page 26: ... CIRCUIT FOR BATTERY CHARGING CHARGE IC 1 5 10V K X5R 1005 10V K X5R 1608 470K R108 20K R116 R106 NA VCHARGE R115 100K 100K R107 1u ECZH0001215 C136 R114 R110 4 3K 100K BATT 10 6 GND 8 IBF IN 1 ISET 9 NTC 5 PGND 11 7 SS _ACOK 3 2 _CHG _EN 4 EUSY0352601 MP26021 U102 VBAT ECZH0001215 C139 1u TP100 0 1uF C140 R109 0 2V8_VEXT C138 4 7n nCHG_EN nCHG_DET ...

Page 27: ...re 3 6 LCD INTERFACE CIRCUIT IF_MODE LCD Connector ENBY0018701 470 R406 27p 470 R405 C417 ECZH0000826 27p ECZH0000826 C416 ECZH0000826 C406 ECZH0000826 27p 27p C404 2V8_AIT_CAM R412 470 1u C410 27p 27p ECZH0000826 C412 C411 ECZH0000826 R410 0 C401 ECZH0000826 27p 470 R411 R422 470 R402 470 R407 470 C418 ECZH0000826 27p 27p C414 ECZH0000826 2V8_AIT_CAM C408 ECZH0000826 27p C407 ECZH0000826 27p R415...

Page 28: ...ictures Camera module is controlled by AIT701G Interface is done by I2C and YCbCr format I2C is a control signal and YCbCr is real data interface signal LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 3 7 1 AIT701G BLOCK DIAGRAM Figure 3 7 2 SENSOR CHIP BLOCK DIAGRAM ...

Page 29: ...B6 C5 PLCD11 B5 PLCD12 PLCD13 A6 PLCD14 C4 A5 PLCD15 PLCD16 PHD1 PHD10 H10 H9 PHD11 PHD12 G10 G9 PHD13 PHD14 G8 PHD15 F10 PHD2 K4 PHD3 J4 PHD4 K5 J5 PHD5 PHD6 K6 PHD7 J6 PHD8 K10 J9 PHD9 PHGPIO_CS_ J10 PHINT D2 PD4 C2 C1 PD5 A1 PD6 B1 PD7 F3 PDCLK E9 PGPIO0 D9 PGPIO1 PGPIO2 C10 PGPIO3 B9 A7 PGPIO4 B7 PGPIO5 F9 PGPIO6 PGPIO7 D10 K1 PHCS_ J3 PHD0 H3 U400 AIT701G EUSY0318501 H6 GND_CORE GND_IO0 H4 H7...

Page 30: ...ted together causing the row input to go low and generate an interrupt The columns rows are then scanned by AD6724 to identify the pressed key LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 3 8 Keypad Switches and Scanning 8 9 6 5 OK 0 CAM SEND C 1 2 7 3 4 LEFT UP RIGHT DOWN MENU SEL NA C312 SW320 C302 SW316 27p C301 27p SW3...

Page 31: ... ADC part of AD6724 The digitized speech PCM 8KHz 16KHz is then passed to the DSP section of AD6724 for processing coding interleaving etc LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes CLOSE TO ABB MAIN_MIC C315 39p C316 39p R317 100ohm 10u C303 39p C307 R321 2 2K VA300 EVL5M02200 EVL5M02200 VA301 39p C308 SPOB 413S44 RC10BC MIC30...

Page 32: ...UT3N AOUT3P H17 C154 39p SPK_N SPK_P AUXOP AUXON AMP INACTIVE HIGH AMP ACTIVE SPEAKER AUDIO AMP 17pi 3 6T speaker AMP_SHDN LOW R205 100K 0 1uF C201 C204 R202 10K 470n 10K R204 R208 10K C214 0 1uF 10K R206 C213 VA203 0 1uF VA202 EVL5M02200 EVL5M02200 CN201 17 8T 01PP SUSY0022601 1 2 R200 39K C209 C207 39p 39p C206 470n C202 C215 1000p 1000p VBAT C200 1u C212 470n 39K R209 C208 39p 2 BYPASS GND 7 3 ...

Page 33: ...is changed from high to low This is detected by USC5 And then hook is detected LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 3 TECHNICAL BRIEF 34 Figure 3 11 HEADSET JACK INTERFACE 6 GENIE_TX 7 GENIE_RX 3 9 10 BATT for RADIO 1608 2 AUDIO 4 EAR_L 5 EAR_R I O CONNECTOR for RADIO 1 FM_ANT 8 nJACK_DET NA C220 0 1uF C217 CAP_NA_1608 NA...

Page 34: ...Board which are driven by KEY_BACKLIGHT port from AD6724 Figure 3 12 KEY BACK LIGHT ILLUMINTION 10V K X5R LEBB S14E LD302 LD305 LEBB S14E 100ohm R305 LD303 LEBB S14E 100ohm R312 100ohm R301 VBAT R313 100ohm LEBB S14E LD306 LEBB S14E LD307 R304 100ohm C300 LEBB S14E 1u LD304 LEBB S14E LD301 LD308 LEBB S14E LD309 LEBB S14E R318 100ohm R315 100ohm R308 100ohm R309 100ohm R306 LD300 LEBB S14E 100ohm 4...

Page 35: ...D Back light Illumination LCD backlight LEDs is controlled by AD6724 via AAT3157 U300 Figure 3 12 KEY BACK LIGHT ILLUMINTION CHARGE PUMP VBAT C321 27p C318 NA 3 D3 EN_SET 11 GND 4 5 IN NC 12 U300 C1 10 9 C1 7 C2 6 C2 CP 8 1 D1 D2 2 AAT3157ITP T1 EUSY0238702 1u C319 75K R326 43K R329 27p C323 27p C322 C317 1u MLED LCD_BACKLIGHT_CTRL MLED1 MLED2 ...

Page 36: ...ly for training and service purposes 3 14 VIBRATOR The vibrator is placed in the folder cover and contacted to LCD MODULE The vibrator is driven from VIBRATOR USC3 of AD6724 Figure 3 14 Vibrator 1608 50V J NP0 R330 100K CN300 1 2 R327 10 C320 1uF 1 1K R328 Q300 2 3 KTC4075E KDS114E D300 VBAT VIBRATOR ...

Page 37: ...ND 6 2 GND NC 5 STBY 1 3 VIN VOUT 4 NA R213 2V8_VEXT 2V8_RADIO 4 7K R227 R226 4 7K 10K R225 R223 100K C224 1u C231 LOUT NC1 1 20 NC2 PGND 21 9 RCLK 3 RFGND 13 ROUT SCLK 7 SDIO 8 16 VA 11 VD VIO 10 5 _RST 6 _SEN NA U202 SI4702 B16 2 FMIP 4 GND1 GND2 12 GND3 15 GPIO1 19 18 GPIO2 GPIO3 17 14 R231 100K R229 0 NA C236 R216 39K C233 C228 0 1uF C227 0 1uF 0 1uF C222 0 1uF LM4809LD U203 BGND 9 2 BYPASS GN...

Page 38: ...ery STOP Command The internal address counter is reset For read operations the device acknowledge is followed by an eight bit data word shifted out on falling SCLK edges An internal address counter automatically increments to allow continuous data byte reads starting with the upper byte of register 0Ah followed by the lower byte of register 0Ah and onward until the lower byte of the last register ...

Page 39: ... Only for training and service purposes TEST POINT 40 4 TROUBLE SHOOTING 4 TROUBLE SHOOTING 4 1 RF Component U500 U501 FL500 X500 PAM ASM SW500 Figure 4 1 U500 PAM ASM SKY77517 U501 AD6548 RF Main Chip Transceiver X500 Crystal 26MHz Clock FL500 SAW Filter SW500 Mobile Switch ...

Page 40: ... service purposes 4 TROUBLE SHOOTING 41 4 2 RX Trouble START Re download SW or Do calibration again HP8960 Test mode 190 CH 7 level setting TCH 190CH 60dBm setting BCCH Spectrum analyzer setting Oscilloscope setting 1 Check Crystal Circuit 2 Check Mobile SW ASM 3 Check RX I Q Signal CHECKING FLOW ...

Page 41: ...ystal Circuit R508 X500 26 MHzO K No No Crystal Circuit is OK See next Page to check Mobile SW See next Page to check Mobile SW Yes Change X500 C515 27p 47p C509 0 1uF C517 R514 1K C510 39p 17 VCC_REF 16 VLDO2 REFINB VAFC_NC 18 REFIN 20 19 1000p C512 39p C516 R508 0 26M AFC QN QP TEST POINT CHECKING FLOW CIRCUIT WAVEFORM Graph 4 2 1 a Graph 4 2 1 b ...

Page 42: ...SW500 39p C502 1K R504 TP501 C511 22p 2 7nH L502 TP500 0 R501 TP502 100ohm R500 27p C504 C503 27p L500 NA 0 75p C500 R502 0 100ohm R505 C514 1 2p L501 2 7nH GND5 13 14 GND6 GND7 15 16 GND8 20 GND9 17 GSM_IN GSM_RX 7 18 NC PGND 21 4 TX_EN VBATT 1 2 VLOGIC VRAMP 3 U500 SKY77518 ANT 11 BS 5 DCS_IN 19 6 DCS_RX 8 GND1 GND2 9 GND3 10 12 GND4 0 R506 R503 100ohm ANT_SW PA_EN PA_BAND TX_RAMP WAVEFORM CIRCU...

Page 43: ...ck SW500 Pin ANT RF with No RF Cable Connected Short Yes Changing SW500 For these 2 test case No Call connection is needed No No Changing the Board Check RF Level of U500 7 for GSM U500 6 for DCS Ant SW Mobile SW is OK See next Page to check Rx I Q Signal Pin 7 62dBm Pin 6 63dBm No Changing U500 Yes No For this RF Level test case RX Stand alone Mode is needed refer to chapter 10 Check ANT SW Vdd 0...

Page 44: ... 15 16 VLDO2 VLDO3 9 REFINB 21 REF_OP 28 RX1800 RX1800B 27 26 RX1900 RX1900B 25 32 RX850 RX850B 31 30 RX900 RX900B 29 6 SCLK SDATA 5 SEN 7 TXOP_HI 11 10 TXOP_LO VAFC_NC 18 14 U501 AD6548 EUSY0280101 33 GND 2 I IB 3 8 NC 23 Q QB 22 REFIN 20 19 IN QN QP IP TEST POINT CIRCUIT WAVEFORM Redownload software and calibration again Similar No Replace U501 Yes No Check C510 C529 Check if there is any Major ...

Page 45: ...ved Only for training and service purposes START Redownload SW or Do calibration again HP8960 Test mode 190 CH 7 level setting TCH 190CH 60dBm setting BCCH Spectrum analyzer setting Oscilloscope setting 1 Check Crystal Circuit 3 Check PAM control signal 4 Check TX I Q Signal 2 Check Mobile SW FEM CHECKING FLOW ...

Page 46: ...rvice purposes R508 X500 26 MHzO K No No Crystal Circuit is OK See next Page to check Mobile SW See next Page to check Mobile SW Yes Change X500 TEST POINT WAVEFORM CIRCUIT CHECKING FLOW Graph 4 2 1 a Graph 4 2 1 b C515 27p 47p C509 0 1uF C517 R514 1K C510 39p 17 VCC_REF 16 VLDO2 REFINB VAFC_NC 18 REFIN 20 19 1000p C512 39p C516 R508 0 26M AFC QN QP ...

Page 47: ...SW500 39p C502 1K R504 TP501 C511 22p 2 7nH L502 TP500 0 R501 TP502 100ohm R500 27p C504 C503 27p L500 NA 0 75p C500 R502 0 100ohm R505 C514 1 2p L501 2 7nH GND5 13 14 GND6 GND7 15 16 GND8 20 GND9 17 GSM_IN GSM_RX 7 18 NC PGND 21 4 TX_EN VBATT 1 2 VLOGIC VRAMP 3 U500 SKY77518 ANT 11 BS 5 DCS_IN 19 6 DCS_RX 8 GND1 GND2 9 GND3 10 12 GND4 0 R506 R503 100ohm ANT_SW PA_EN PA_BAND TX_RAMP WAVEFORM CIRCU...

Page 48: ...No Check R500 R503 R505 Check whether Ant SW Set as TX mode Refer to Graph 4 3 2 Refer to Table 4 3 2 Yes Check ANT SW Vdd Check RF Level of U500 Pin 17 for GSM Pin 19 for DCS Pin17 29 5dBm Pin19 26 5dBm No Yes No Changing board Go to 4 3 4 Checking PAM control signal END For the test TX Stand alone Mode is needed Refer to chapter 10 PL 7 for GSM PL 2 for DCS Table 4 3 2 0 1 1 GSM Tx BS Tx_EN 1 1 ...

Page 49: ...00ohm R505 GND5 13 14 GND6 GND7 15 16 GND8 20 GND9 17 GSM_IN GSM_RX 7 18 NC PGND 21 4 TX_EN VBATT 1 2 VLOGIC VRAMP 3 U500 SKY77518 ANT 11 BS 5 DCS_IN 19 6 DCS_RX 8 GND1 GND2 9 GND3 10 12 GND4 R503 100ohm ANT_SW PA_EN PA_BAND TX_RAMP PAM_EN TEST POINT CIRCUIT WAVEFORM Similar Yes No Check TX_RAMP and PAM_EN Any Major Difference or not Similar Yes No Go to Next Step Similar Yes No Re download S W Ch...

Page 50: ...VDD 13 VLDO1 15 16 VLDO2 VLDO3 9 REFINB 21 REF_OP 28 RX1800 RX1800B 27 26 RX1900 RX1900B 25 32 RX850 RX850B 31 30 RX900 RX900B 29 6 SCLK SDATA 5 SEN 7 TXOP_HI 11 10 TXOP_LO VAFC_NC 18 14 U501 AD6548 EUSY0280101 33 GND 2 I IB 3 8 NC 23 Q QB 22 REFIN 20 19 IN QN QP IP TEST POINT WAVEFORM CIRCUIT Re download the Software And calibrate Check if there is Any Major Difference Refer to Graph4 3 4 Similar...

Page 51: ... 2V75_VVCXO 2V85_VSIM TEST POINT 2V75_VABB 2V5_VMIC 1u C111 2V8_VMEM 1V8_VCORE 2V75_VVCXO 2V85_VSIM 2V8_VEXT C116 1u 1u C117 2 2u C115 C114 C113 1u 2 2u 1u C112 VMIC P16 R14 VSIM VVCXO F16 VCORE U11 VEXT01 C11 R13 VMEM G17 VABB CIRCUIT Figure 4 4 END R300 VBAT 10K SW304 R303 680 POWERKEY R104 100K RXON RB521S 30 D100 TXON N15 PWRON U14 RXON M12 N12 GPO_0 N14 GPO_1 DBBON U15 CSFS_ABB M11 ASDO_DBB R...

Page 52: ... of The LDO outputs at U103 Logic level at RPWRONN of U103 HIGH above 1 2V Is the phone power on The phone will Properly operating Charge or Change Battery Check the contact of power key Or dome switch Re download software VCORE 1 8V VVCXO 2 75V VMEM 2 8V VSIM 1 8V or 2 85V VEXT 2 8V VABB 2 75V VMIC 2 5V Replace U103 Does it work properly Replace the main board YES YES YES YES YES NO NO NO NO NO N...

Page 53: ...R FL100 GND1 GND2 IN 12 IN_PAD 8 NC1 NC2 9 6 OUT1 OUT2 7 10 _EN _FLAG 3 U101 NCP347MTAHTBG 2 GND GND_PAD 11 IN1 1 IN2 4 5 IN3 OVP_IN CHARGE IC 1 5 10V K X5R 1005 10V K X5R 1608 470K R108 20K R116 R106 NA VCHARGE R115 100K 100K R107 1u ECZH0001215 C136 R114 R110 4 3K 100K BATT 10 6 GND 8 IBF IN 1 ISET 9 NTC 5 PGND 11 7 SS _ACOK 3 2 _CHG _EN 4 EUSY0352601 MP26021 U102 VBAT ECZH0001215 C139 1u TP100 ...

Page 54: ...ctor CN202 well soldered Voltage at C128 6 4V Are U101 FL100 well soldered YES YES YES YES Battery is charged Charging is properly operating NO NO NO Resolder the CN202 Pin 12 13 VCHARGE The TA is out of order Change the TA Resolder the U101 FL100 Replace the U102 Battery is charged NO Change the battery Charging is properly operating YES NO CHECKING FLOW ...

Page 55: ...nc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 56 4 6 Vibrator Trouble Q300 R328 R330 1608 50V J NP0 R330 100K CN300 1 2 R327 10 C320 1uF 1 1K R328 Q300 2 3 KTC4075E KDS114E D300 VBAT VIBRATOR TEST POINT CIRCUIT Figure 4 6 ...

Page 56: ... the engineering mode and set vibrator on at vibration of BB test menu START Is the voltage at pin2 of Q300 high YES NO Is the voltage at pin 3 of Q300 low YES Check the contact of vibrator YES Replace vibrator YES Vibrator Working well Check the soldering of R328 U103 NO Check the soldering ofD300 R327 Reassembly or Replace vibrator NO CHECKING FLOW ...

Page 57: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 4 TROUBLE SHOOTING 58 4 7 LCD Trouble U401 CN400 TEST POINT Figure 4 7 ...

Page 58: ... 27p ECZH0000826 470 R421 27p ECZH0000826 C403 27p ECZH0000826 C402 R408 470 470 R409 R404 470 470 470 R403 R401 470 R400 27 28 29 3 30 31 32 33 34 35 4 5 6 7 8 9 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 CN400 1 10 11 27p ECZH0000826 C424 ECZH0000826 27p C423 C422 ECZH0000826 27p ECZH0000826 27p C419 C421 27p ECZH0000826 R418 470 470 R419 470 R417 4 7K R413 C400 1u VSYNC nLCD_RESET L_DATA13 ...

Page 59: ...NG FLOW START Is the connection of FPCB with connector on PCB CN400 ok YES NO Reassemble FPCB with CN400 connector Is Voltage pin8 of U401 2 8V NO Replace U401 Check the soldering of CN400 NO YES YES Check the soldering of LCD Line Resoldering CN400 NO Resoldering R400 R422 Does LCD work properly NO Replace LCD module YES LCD working well YES ...

Page 60: ... 61 4 TROUBLE SHOOTING LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 4 8 Camera Trouble U401 U400 AIT701G TEST POINT Figure 4 8 ...

Page 61: ...CD5 A8 PLCD6 B8 C8 PLCD7 C7 PLCD8 PLCD9 C6 B3 PLCD_A0 A3 PLCD_RD_ PLCD_WE_ A4 PMCLK J2 F1 J8 PHLCD2_CS_ K8 J7 PHLCD_A0 K7 PHLCD_BY J1 PHRD_ E3 PHSYNC K9 PHWAIT_ PHWE_ K2 PLCD0 A10 B10 PLCD1 PLCD10 B6 C5 PLCD11 B5 PLCD12 PLCD13 A6 PLCD14 C4 A5 PLCD15 PLCD16 PHD1 PHD10 H10 H9 PHD11 PHD12 G10 G9 PHD13 PHD14 G8 PHD15 F10 PHD2 K4 PHD3 J4 PHD4 K5 J5 PHD5 PHD6 K6 PHD7 J6 PHD8 K10 J9 PHD9 PHGPIO_CS_ J10 P...

Page 62: ...Has no trouble YES NO Replace the U401 Change the camera module Does it work properly YES Itís camera moduleís problem Replace the camera module Check the voltage of pin 8 of U401 is 2 8V and Voltage of pin 7 of U401 is 1 8V YES Check the signals of the R423 R436 YES Camera will work properly NO NO Go to the LCD trouble Resoldering the resistor NO CHECKING FLOW ...

Page 63: ...SPEAKER AUDIO AMP 17pi 3 6T speaker AMP_SHDN LOW R205 100K 0 1uF C201 C204 R202 10K 470n 10K R204 R208 10K C214 0 1uF 10K R206 C213 VA203 0 1uF VA202 EVL5M02200 EVL5M02200 CN201 17 8T 01PP SUSY0022601 1 2 R200 39K C209 C207 39p 39p C206 470n C202 C215 1000p 1000p VBAT C200 1u C212 470n 39K R209 C208 39p 2 BYPASS GND 7 3 IN IN 4 PGND 9 6 VDD VO 5 VO 8 _SHUTDOWN 1 TPA6205A1DRBR U201 RADIO_SPK_L AMP_...

Page 64: ...ining and service purposes 4 TROUBLE SHOOTING 65 START Check the state of contact of speaker Speaker Working well Check the Audio signal R202 R204 No Yes Change the U103 Replace Change speaker No Check the Power voltage U201 VBAT And work properly No Yes Change the U201 Yes CHECKING FLOW ...

Page 65: ...raining and service purposes 4 TROUBLE SHOOTING 66 4 10 SIM Card Interface Trouble TEST POINT CIRCUIT J300 R128 C324 Figure 4 10 NA R332 2V85_VSIM C325 1000p 2V85_VSIM C324 220n C7 7 GND1 GND2 8 9 GND3 GND4 10 J300 C1 1 C2 2 3 C3 C5 4 5 C6 6 2V85_VSIM R331 4 7K SIM_DATA SIM_CLK nSIM_RST ...

Page 66: ...e the SIM Card This phone supports 3V or 1 8V SIM card YES Is Voltage at the pin1 pin6 of J300 2 85V or 1 8V NO Change the U103 NO YES Resolder J300 YES Voltage output of VSIM LDO Is 2 85V Change the SIM Card And try again Does it work Properly YES SIM card is properly working Redownload SW Does it work Properly NO Change the main board NO YES SIM card is properly working CHECKING FLOW ...

Page 67: ... AUDIO 4 EAR_L 5 EAR_R I O CONNECTOR for RADIO 1 FM_ANT 8 nJACK_DET NA C220 0 1uF C217 CAP_NA_1608 NA C218 C223 R212 2 2K 10u FB202 2V8_VEXT 1800 NA FB201 NA C229 2V5_VMIC L200 270nH 2V8_VEXT 100K R217 21 3 4 5 6 7 8 9 OVP_IN 1 19 2 VBAT CN202 10p FB200 1800 C216 1 5K R211 NA R210 C230 39p 10u ECCH0005604 C225 0 1uF R215 100K C219 39p C221 HOOK_DET AUXIP nJACK_DET 2V8_VEXT AUXIN AUXON_FM_L GENIE_R...

Page 68: ...the test Equipment to echo mode Change the earphone and try again NO Can you hear the sound from the earphone Set the audio part of the test equipment to PRBS or Continuous wave mode YES YES Resolder R211 R212 Is voltage level at R211 About 2 4v Change the U103 NO YES Can you hear the sound from the earphone NO Change the earphone and try again NO Can you hear your voice from the earphone NO Resol...

Page 69: ... POINT CIRCUIT 10V K X5R LEBB S14E LD302 LD305 LEBB S14E 100ohm R305 LD303 LEBB S14E 100ohm R312 100ohm R301 VBAT R313 100ohm LEBB S14E LD306 LEBB S14E LD307 R304 100ohm C300 LEBB S14E 1u LD304 LEBB S14E LD301 LD308 LEBB S14E LD309 LEBB S14E R318 100ohm R315 100ohm R308 100ohm R309 100ohm R306 LD300 LEBB S14E 100ohm 470n 470n C534 C535 KEY_BACKLIGHT Figure 4 12 C534 ...

Page 70: ...ght reserved Only for training and service purposes 4 TROUBLE SHOOTING 71 START Is the level at C534 LOW 0V NO Check U103 Are all LEDs Working NO YES Check the soldering each R and LED Backlight will work properly NO Replace or resolder component YES CHECKING FLOW ...

Page 71: ...erved Only for training and service purposes 4 TROUBLE SHOOTING 72 4 13 Receiver Trouble TEST POINT CIRCUIT C151 C150 C140 39p 39p C151 C150 AIN3N AOUT1N K17 H16 AOUT1P AOUT2N1 R15 P14 AOUT2N2 R16 AOUT2P1 AOUT2P2 P15 J17 AOUT3N AOUT3P H17 39p C144 RCV_P RCV_N Figure 4 13 ...

Page 72: ... 73 START Does waveform at C150 and C151 fluctuate NO Change the U103 YES Receiver will work properly SETTING After initialize Agilent 8960 Test EGSM DCS mode Set the property of audio as PRBS or continuous wave Set the receiving volume of mobile as Max Is receiver connected Properly YES NO Resolder Change the receiver CHECKING FLOW ...

Page 73: ...or training and service purposes TEST POINT CIRCUIT MIC 300 R314 C308 C316 C315 R317 C309 CLOSE TO ABB MAIN_MIC C315 39p C316 39p R317 100ohm 10u C303 39p C307 R321 2 2K VA300 EVL5M02200 EVL5M02200 VA301 39p C308 SPOB 413S44 RC10BC MIC300 1 2 R320 100ohm C305 39p R314 R310 1K 2 2K C309 0 1uF 2V5_VMIC VINNORN VINNORP Figure 4 14 ...

Page 74: ...oses START NO YES Microphone will work properly SETTING After initialize Agilent 8960 Test EGSM DCS mode YES Check the signal Level at each side of MIC300 Is it a few tens mV AC Check the soldering of R314 R317 C308 C309 R320 Check the Voltage VMIC 2 5V NO Change the microphone YES NO Resolder component Change the U103 CHECKING FLOW ...

Page 75: ...TING 76 4 15 RTC Trouble TEST POINT CIRCUIT X100 R101 3p C123 1 2 3 4 32 768KHz X100 MC 146_12_5PF C121 1000p R101 10M 3p C120 OSCIN T10 U10 OSCOUT E1 NC3 NC4 F1 F3 NC5 NC6 G1 NC2 D8 T5 KEYPADROW0 U4 KEYPADROW1 R8 KEYPADROW2 R6 KEYPADROW3 R7 KEYPADROW4 C2 NC1 CLKIN B1 26M KEY_ROW0 KEY_ROW1 KEY_ROW2 KEY_ROW3 KEY_ROW4 Figure 4 15 ...

Page 76: ...rvice purposes 4 TROUBLE SHOOTING 77 RTC will work properly Is frequency at R107 about 32 768KHz START Resolder the X100 or change the X100 NO YES YES Is voltage at R107 about 400mV Resolder the X100 or change the X100 NO Is RTC properly working NO Re download software and try again YES CHECKING FLOW ...

Page 77: ...227 R226 4 7K 10K R225 R223 100K C224 1u C231 LOUT NC1 1 20 NC2 PGND 21 9 RCLK 3 RFGND 13 ROUT SCLK 7 SDIO 8 16 VA 11 VD VIO 10 5 _RST 6 _SEN NA U202 SI4702 B16 2 FMIP 4 GND1 GND2 12 GND3 15 GPIO1 19 18 GPIO2 GPIO3 17 14 R216 39K C233 C228 0 1uF C227 0 1uF 0 1uF C222 0 1uF LM4809LD U203 BGND 9 2 BYPASS GND 3 VDD 7 1 VIN1 5 VIN2 VOUT1 8 VOUT2 6 4 _SHDN 2V8_RADIO 47 R228 2V8_RADIO TP201 2V8_RADIO 2V...

Page 78: ...nJACK_DET NA C220 0 1uF C217 CAP_NA_1608 NA C218 C223 R212 2 2K 10u FB202 2V8_VEXT 1800 NA FB201 NA C229 R220 2V5_VMIC NA L200 270nH 2V8_VEXT varistor VA205 varistor VA204 100K R217 56p C235 20 21 22 3 4 5 6 7 8 9 OVP_IN HSEJ 18S04 25R 1 10 11 12 13 14 15 16 17 18 19 2 VBAT ENRY0006401 CN202 10p FB200 1800 C216 1 5K R211 NA R210 C230 39p 10u ECCH0005604 C225 0 1uF C533 0 1uF R215 100K C219 R221 10...

Page 79: ...ion is good A condition is good Replace Board Replace U202 Yes No FM_Radio Working is good No Yes A condition is good No Yes Check a condition of CLK R228 Check a condition of Power supply points C222 C224 C234 Reasonable range 3 1V Cxxx 2 7V Check a condition of FM tuner Matching components L200 C216 Check a condition of Ear_jack_connector soldering CN202 Finish Check a condition of TP1 U203 sold...

Page 80: ...5 DOWNLOAD LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 1 Download A Download Setup Figure 5 1 describes Download setup Figure 5 1 Download Setup ...

Page 81: ...nternal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 5 DOWNLOAD 82 B Multi Download Procedure 1 Run GSM Multi Download program and select Setting KP135 ...

Page 82: ...ernal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 2 Select Configuration from the menu and you may see this window 3 Press key to select DLL file and press Open KP135 ...

Page 83: ...ics Inc All right reserved Only for training and service purposes 84 5 DOWNLOAD 4 Press key to select the mot files 5 Select AlchemyData mot and press open 6 Repeat step 4 5 to select CodeData mot 7 Repeat step 4 5 to select FlexData mot KP135 KP135 ...

Page 84: ...ight 2008 LG Electronics Inc All right reserved Only for training and service purposes 85 5 DOWNLOAD 8 Check if the ADI option is set to Hermes 9 Press OK to end Configuration Select Rate KP135 KP135 KP135 KP135 KP135 KP135 KP135 ...

Page 85: ...Electronics Inc All right reserved Only for training and service purposes 86 5 DOWNLOAD 10 Press START to execute download 11 Once downloading is started press STOP button to keep from re downloading after downloading is completed KP135 KP135 ...

Page 86: ...LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes 87 6 BLOCK DIAGRAM 6 BLOCK DIAGRAM Figure 6 1 LG KP235 Block Diagram ...

Page 88: ...8 NC20 R9 T3 NC21 NC22 T4 T14 NC25 G2 NC26 NC27 H2 KEYPADCOL1 U5 U6 KEYPADCOL2 T7 KEYPADCOL3 T5 KEYPADROW0 U4 KEYPADROW1 R8 KEYPADROW2 R6 KEYPADROW3 R7 KEYPADROW4 K12 LGND K13 LGND1 F14 LIGHT1 H13 LIGHT2 J15 LIGHT3 MCLK L14 MCLKEN L12 C2 NC1 M6 GPO_20 GPO_21 K2 GPO_22 P8 P11 GPO_24 GPO_3 H3 M15 GPO_6 GPO_8 H6 GPO_9 J3 IN B16 H10 INT A16 IP ISENSE C13 JTAGEN F4 KEYON U17 KEYOUT T16 KEYPADCOL0 T6 P6...

Page 89: ...C2 PGND 21 9 RCLK 3 RFGND 13 ROUT SCLK 7 SDIO 8 16 VA 11 VD VIO 10 5 _RST 6 _SEN NA U202 SI4702 B16 2 FMIP 4 GND1 GND2 12 GND3 15 GPIO1 19 18 GPIO2 GPIO3 17 14 varistor VA205 varistor VA204 100K R217 C202 C215 1000p 1000p 56p C235 39p C210 39p 20 21 22 3 4 5 6 7 8 9 OVP_IN C205 HSEJ 18S04 25R 1 10 11 12 13 14 15 16 17 18 19 2 VBAT ENRY0006401 CN202 10p FB200 1800 C216 1 5K R211 1 2 NA R210 CN200 V...

Page 90: ...IN NC 12 U300 C1 10 9 C1 7 C2 6 C2 CP 8 1 D1 D2 2 680 R307 AAT3157ITP T1 EUSY0238702 SW304 1u C300 C319 LEBB S14E 1u LD304 LEBB S14E LD301 SW315 SW319 27nH L301 27nH L304 EVL5M02200 VA301 75K R326 KDS114E D300 43K R329 27p C323 NA C311 SW313 C324 SW308 680 R323 220n 27nH L303 39p C308 SPOB 413S44 RC10BC MIC300 1 2 R320 100ohm 680 R324 SW321 C305 39p R314 R310 1K 2 2K C309 0 1uF 2V5_VMIC C7 7 GND1 ...

Page 91: ...XL_CLK K3 PRST_ D3 PSCAN_EN PSCK G2 PSDA H2 H1 PSEN PS_RST_ F2 PTEST_EN E10 G1 PVSYNC VDD_CORE H5 G3 VDD_IO0 VDD_IO1 H8 VDD_IO2 E8 B4 C3 PLCD17 PLCD1_CS_ B2 A9 PLCD2 PLCD2_CS_ A2 C9 PLCD3 PLCD4 D8 PLCD5 A8 PLCD6 B8 C8 PLCD7 C7 PLCD8 PLCD9 C6 B3 PLCD_A0 A3 PLCD_RD_ PLCD_WE_ A4 PMCLK J2 F1 J8 PHLCD2_CS_ K8 J7 PHLCD_A0 K7 PHLCD_BY J1 PHRD_ E3 PHSYNC K9 PHWAIT_ PHWE_ K2 PLCD0 A10 B10 PLCD1 PLCD10 B6 C...

Page 92: ...V8_VMEM 220n C526 VBAT 4 VCC_BBI VCC_BBQ 24 VCC_FE 1 17 VCC_REF 12 VCC_TXVCO VDD 13 VLDO1 15 16 VLDO2 VLDO3 9 VBAT REFINB 21 REF_OP 28 RX1800 RX1800B 27 26 RX1900 RX1900B 25 32 RX850 RX850B 31 30 RX900 RX900B 29 6 SCLK SDATA 5 SEN 7 TXOP_HI 11 10 TXOP_LO VAFC_NC 18 14 U501 AD6548 EUSY0280101 33 GND 2 I IB 3 8 NC 23 Q QB 22 REFIN 20 19 100ohm R500 0 1uF C525 27p C504 C518 0 1uF C522 0 1uF C503 27p ...

Page 95: ...BGA IC Pin Check AIT701G LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes X X X X X X X X X X X Do Not Use X X X X X X X X Do Do Not Use ot Use ...

Page 99: ...training and service purposes CN202 I O CONNECTOR CN400 LCD CONNECTOR U400 AIT701G No Camera Preview U100 S71PL129NC0HFW Canit boot the phone U103 AD6724 Canit boot the phone FL500 B9308 Rx Sensitivity Or Tx power U501 AD6548 Rx Sensitivity Or Tx power U500 SKY77518 No Tx power KP135 SPFY0164001 1 0 BTM ...

Page 100: ...n is 2945 Pressing END will switch back to non engineering mode operation C Key Operation Use Up and Down key to select a menu and press select key to progress the test Pressing back key will switch back to the original test menu D Engineering Mode Menu Tree 10 ENGINEERING MODE Engineering Mode BB Test RF Test MF Mode Trace option Call Timer CAMERA LCD Backlight Buzzer Vibrator ADC Battery Audio D...

Page 101: ...cklight on LCD Backlight on 2 Backlight off LCD Backlight off 3 Backlight value This controls brightness of Backlight When entering into the menu the present backlight value in the phone is displayed Use Left Right key to adjust the level of brightness The value of the brightness set at last will be saved in the NVRAM 10 1 4 Buzzer This menu is to test the melody sound 1 Melody on Melody sound is ...

Page 102: ...ion The following menus are displayed in order TEMP_LOW_LIMIT TEMP_LOW_RECHARGE_LMT TEMP_HIGH_RECHARGE_LMT TEMP_HIGH_LIMIT 10 1 8 Audio This is NOT a necessary menu to be used by neither engineers nor users 10 1 8 DAI Digital Audio Interface This menu is to set the Digital Audio Interface Mode for Speech Transcoder and Acoustic testing 1 DAI AUDIO DAI audio mode 2 DAI UPLINK Speech encoder test 3 ...

Page 103: ...t the same time then off 10 3 3 Buzzer This menu is to test the volume of Melody It rings in the following sequence Volume 1 Volume 2 Volume 3 Volume 0 mute Volume 4 Volume 5 10 3 4 Vibrator Vibrator is on for about 1 5 seconds 10 3 5 LCD 1 LCD Main LCD screen resolution tests horizontally and vertically one by one and fills the screen 10 3 6 Key pad When a pop up message shows Press Any Key you m...

Page 104: ...tal conversation time User cannot reset this value 2 Reset settings This resets total conversation time to this 00 00 00 10 6 Fact Reset MENU 6 This Factory Reset menu is to format data block in the flash memory and this procedure set up the default value in data block Attention 1 Fact Reset i e Factory Reset should be only used during the Manufacturing process 2 Servicemen should NOT progress thi...

Page 105: ...e values as explained below Port select a correct COM port Baud rate 38400 Leave the rest as default values B Tx 1 Selecting Channel Select one of GSM or DCS DCS Band and input appropriate channel 2 Selecting APC a Select either Power level or Scaling Factor b Power level Input appropriate value GSM between 5 19 or DCS DCS between 0 15 c Scaling Factor A Ramp Factor appears on the screen You may a...

Page 106: ...nly for training and service purposes 107 11 STAND ALONE TEST 11 3 Means of Test a Select a COM port b Set the values in Tx or Rx c Select band and channel d After setting them all above press connect button e Press the start button Connect Button Figure 10 3 1 HW test program ...

Page 107: ... 108 11 STAND ALONE TEST LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes Figure 10 3 3 Ramping profile Figure 10 3 2 HW test setting ...

Page 108: ...rates calibration data by communicating with phone and measuring equipment then write it into calibration data block of flash memory in GSM phone 12 2 Equipment List Figure 11 2 1 Equipment Setup 12 AUTO CALIBRATION Equipment for Calibration Type Model Brand Wireless Communication Test Set HP 8960 Agilent RS 232 Cable and Test JIG LG RF Cable LG Power Supply HP 66311B Agilent GPIO interface card H...

Page 109: ...Jig Power Switch Number Name Description Switch 1 ADI REMOTE In ON state phone is awaked It is used ADI chipset Switch 2 TI REMOTE In ON state phone is awaked It is used TI chipset Switch 3 VBAT Power is provided for phone from battery Switch 4 PS Power is provided for phone from Power supply Table 12 3 Jig DIP Switch LED Number Name Description LED 1 Power Power is provided for Test Jig LED 2 TA ...

Page 110: ...port of PC and MON port of TEST JIG in general 2 Set the Power Supply 4 0V 3 Set the 3rd 4th of DIP SW ON state always 4 Press the Phone power key if the Remote ON is used 1st ON state 12 4 Procedure 1 Connect as Fig 12 2 2 RS232 serial cable is connected between COM port of PC and MON port of TEST JIG in general 2 Run Hot_Kimchi exe to start calibration 3 From the Calibration menu Select KP135 3 ...

Page 112: ...in code and the same measure is performed per every frequency 12 6 APC This procedure is for Tx calibration In this procedure you can get proper scale factor value and measured power level 12 7 ADC This procedure is for battery calibration You can get main Battery Config Table and temperature Config Table will be reset LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only...

Page 114: ... 25 26 27 28 29 30 31 32 33 34 35 36 11 12 19 20 13 14 15 16 17 18 22 21 13 EXPLODED VIEW REPLACEMENT PART LIST 13 1 EXPLODED VIEW LGE Internal Use Only Copyright 2008 LG Electronics Inc All right reserved Only for training and service purposes ...

Page 116: ... MICE0003801 COMPLEX empty Without Color 9 5 MICE01 INSERT NUT MICE0003901 COMPLEX empty Without Color 11 4 MFBB00 FILTER RECEIVER MFBB0024101 COMPLEX empty Without Color 4 4 MFBD00 FILTER MIKE MFBD0026901 COMPLEX empty Without Color 10 4 MPBG00 PAD LCD MPBG0068501 COMPLEX empty Without Color 6 4 MPBM00 PAD RECEIVER MPBM0021201 COMPLEX empty Without Color 7 4 MTAB00 TAPE PROTECTION MTAB0215001 COM...

Page 117: ...00 SPRING COIL MSDB0004301 COMPLEX empty Without Color 32 4 MTAZ00 TAPE MTAZ0198401 COMPLEX empty Without Color 35 4 MWAE00 WINDOW CAMERA MWAE0030501 COMPLEX empty Without Color 38 3 MKAG00 KEYPAD MAIN MKAG0003102 COMPLEX empty White B 12 3 MLAK00 LABEL MODEL MLAK0018622 PRINTING empty Without Color F 22 7 MBFP00 BRACKET CAMERA MBFP0008101 MOLD PC LUPOY SC 1004A Black 17 7 MTAZ00 TAPE MTAZ0198701 ...

Page 118: ...MAIN SMT BOTTOM SAFC0091704 6 BA100 BATTERY CELL LITHIUM SBCL0001701 2 V 0 5 mAh CYLINDER Reflow type BB Max T 1 67 phi 4 8 Pb Free 6 C100 CAP CHIP MAKER ECZH0003202 1 uF 6 3V Z Y5V HD 1005 R TP 6 C101 CAP CHIP MAKER ECZH0004402 100000 pF 16V Z X7R TC 1005 R TP empty empty empty empty empty empty 6 C102 CAP CERAMIC CHIP ECCH0000115 22 pF 50V J NP0 TC 1005 R TP 6 C103 CAP CHIP MAKER ECZH0004402 100...

Page 119: ...0000 pF 50V Z Y5V HD 2012 R TP empty empty empty empty empty empty 1 25 mm 6 C129 CAP CHIP MAKER ECZH0004402 100000 pF 16V Z X7R TC 1005 R TP empty empty empty empty empty empty 6 C131 CAP CERAMIC CHIP ECCH0002002 47000 pF 10V K B HD 1005 R TP 6 C132 CAP CERAMIC CHIP ECCH0000163 47 nF 10V K X5R HD 1005 R TP 6 C133 CAP CHIP MAKER ECZH0003202 1 uF 6 3V Z Y5V HD 1005 R TP 6 C134 CAP CHIP MAKER ECZH00...

Page 120: ...NP0 TC 1005 R TP 6 C212 CAP CHIP MAKER ECZH0001217 470 nF 6 3V K X5R TC 1005 R TP 6 C215 CAP CERAMIC CHIP ECCH0000143 1 nF 50V K X7R HD 1005 R TP 6 C217 CAP CHIP MAKER ECZH0004402 100000 pF 16V Z X7R TC 1005 R TP empty empty empty empty empty empty 6 C218 CAP CERAMIC CHIP ECCH0005604 10 uF 6 3V M X5R TC 1608 R TP 6 C219 CAP CHIP MAKER ECZH0004402 100000 pF 16V Z X7R TC 1005 R TP empty empty empty ...

Page 121: ...P MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 6 C415 CAP CHIP MAKER ECZH0003202 1 uF 6 3V Z Y5V HD 1005 R TP 6 C416 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 6 C417 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 6 C418 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 6 C419 CAP CHIP MAKER ECZH0000826 27 pF 50V J NP0 TC 1005 R TP 6 C420 CAP CHIP MAKER ECZH0000830 33...

Page 122: ... TP 6 C505 CAP CERAMIC CHIP ECCH0005604 10 uF 6 3V M X5R TC 1608 R TP 6 C506 CAP CHIP MAKER ECZH0000830 33 pF 50V J NP0 TC 1005 R TP 6 C507 CAP CERAMIC CHIP ECCH0000155 10 nF 16V K X7R HD 1005 R TP 6 C508 CAP CERAMIC CHIP ECCH0000110 10 pF 50V D NP0 TC 1005 R TP 6 C509 CAP CERAMIC CHIP ECCH0000122 47 pF 50V J NP0 TC 1005 R TP 6 C510 CAP CERAMIC CHIP ECCH0000120 39 pF 50V J NP0 TC 1005 R TP 6 C511 ...

Page 123: ... EDSY0011901 EMD2 30 V 1 A R TP VF 1 5V IF 200mA IR 30uA VR 10V 6 D300 DIODE SWITCHING EDSY0010501 ESC 30 V 100 mA R TP SWITCH DIODE 6 FB200 FILTER BEAD CHIP SFBH0008105 1800 ohm 1005 Chip bead 1800ohm empty R TP 6 FB202 FILTER BEAD CHIP SFBH0008105 1800 ohm 1005 Chip bead 1800ohm empty R TP 6 FB400 FILTER BEAD CHIP SFBH0007102 10 ohm 1005 Ferrite Bead 6 FL100 FILTER EMI POWER SFEY0007101 SMD 1CH ...

Page 124: ... J 1005 R TP 6 R212 RES CHIP MAKER ERHZ0000443 2200 ohm 1 16W J 1005 R TP 6 R215 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R217 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R221 RES CHIP MAKER ERHZ0000406 100 Kohm 1 16W J 1005 R TP 6 R310 RES CHIP MAKER ERHZ0000404 1 Kohm 1 16W J 1005 R TP 6 R314 RES CHIP MAKER ERHZ0000443 2200 ohm 1 16W J 1005 R TP 6 R317 RES CHIP ERHY000...

Page 125: ...IP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R424 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R425 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 6 R426 RES CHIP MAKER ERHZ0000485 4700 ohm 1 16W J 1005 R TP 6 R427 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R428 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R429 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R430 RES CHIP ERHY0...

Page 126: ... for EU ASM PAM 6 U501 IC EUSY0280101 LFCSP 32 32 PIN R TP GSM QUAD BAND TRANSCEIVER Othello G 6 VA202 VARISTOR SEVY0003901 5 5 V SMD 480pF 1005 6 VA203 VARISTOR SEVY0003901 5 5 V SMD 480pF 1005 6 X100 X TAL EXXY0004602 032768 MHz 20 PPM 12 5 pF 65000 ohm SMD 6 9 1 4 1 3 6 X500 X TAL EXXY0024401 26 MHz 10 PPM 10 pF 5 ohm SMD 32 25 0 6 10PPM 10 SMD P TP 6 Z100 DIODE ZENER EDNY0013602 EMD2 5 1 V 150...

Page 127: ...10515 UNIT 44 dB 4 1 35 JFET 330ohm OMNI 1 5TO5 5V SMD 6 R300 RES CHIP MAKER ERHZ0000405 10 Kohm 1 16W J 1005 R TP 6 R301 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R302 RES CHIP MAKER ERHZ0000505 680 ohm 1 16W J 1005 R TP 6 R303 RES CHIP MAKER ERHZ0000505 680 ohm 1 16W J 1005 R TP 6 R304 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R305 RES CHIP ERHY0003301 100 ohm 1 16W J 1005 R TP 6 R...

Page 128: ... CHIP MAKER ERHZ0000505 680 ohm 1 16W J 1005 R TP 6 R325 RES CHIP MAKER ERHZ0000505 680 ohm 1 16W J 1005 R TP 6 SPFY00 PCB MAIN SPFY0164001 FR 4 0 8 mm BUILD UP 4 KP135 MAIN PCB 15 6 VA200 VARISTOR SEVY0003901 5 5 V SMD 480pF 1005 6 VA201 VARISTOR SEVY0003901 5 5 V SMD 480pF 1005 6 VA300 VARISTOR SEVY0003901 5 5 V SMD 480pF 1005 6 VA301 VARISTOR SEVY0003901 5 5 V SMD 480pF 1005 6 VA302 VARISTOR SE...

Page 129: ...RISMATIC 50x34x46 BLACK Innerpack Europe Label Black BATTERY PACK LI ION SBPL0093302 3 7 V 900 mAh 1 CELL PRISMATIC KU380 BATT Europe Label Pb Free 3 7V 900mAh 0 2C PRISMATIC 50x34x46 BLACK Innerpack Europe Label Black 3 SSAD00 ADAPTOR AC DC SSAD0028801 100 240V 5060 Hz 5 6 V 4 A CE AC DC ADAPTOR 85Vac 264Vac 5 6V 0 8V 400mA 5060 WALL 2P I O CONNECTOR ADAPTOR AC DC SSAD0028802 100 240V 5060 Hz 5 6...

Page 130: ...Note ...

Page 131: ...Note ...

Search results

Summary of Contents for KP135

Reviews:

Related manuals for KP135

Brands by name

Popular brands

LG KP135, Service Manual

Search results

Summary of Contents for KP135

Reviews:

Related manuals for KP135

Brands by name

Popular brands