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LG MX8550 Service Manual

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Features of MX8550
1. Wave Type
● CELLULAR : G7W
● PCS: G7W
2. Frequency Scope
Transmit Frequency (MHz)
CELLULAR
824.82 ~ 848.19
3. Rated Output Power : CELLULAR = 0.25W
4. Output Conversion Method : This is possible by correcting the key board channel.
5. Voltage and Current Value of Termination Part Amplifier (Catalogue included)
MODE
CELLULAR
PCS
6. Functions of Major Semi-Conductors
Classification
MSM6500
Memory MCP
(TY9000A000BMGF)
RFR6500
RFT6150
7. Frequency Stability
● CELLULAR : ±0.5PPM
● PCS : ±0.1PPM
PCS
CELLULAR
1850~1910
869.82~893.19
PCS = 0.25W
Part Name
Voltage
AWT6321R
4.2V
AWT6321R
4.2V
Terminal operation control and digital signal processing
Flash Memory (1024Mbit) + SDRAM (512Mbit)
Storing of terminal operation program
Converts Rx RF signal to baseband signal
Converts baseband signal to Tx RF signal
Receive Frequency (MHz)
PCS
1930~1990
Current
Power
400mA
0.25W
400mA
0.25W
Function
GPS
1575.42

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Summary of Contents for LG MX8550

  • Page 1 Features of MX8550 1. Wave Type ● CELLULAR : G7W ● PCS: G7W 2. Frequency Scope Transmit Frequency (MHz) Receive Frequency (MHz) CELLULAR CELLULAR 824.82 ~ 848.19 1850~1910 869.82~893.19 1930~1990 1575.42 3. Rated Output Power : CELLULAR = 0.25W PCS = 0.25W 4.
  • Page 2 MX8550 CDMA Mobile Subscriber Unit MX8550 SERVICE MANUAL SERVICE MANUAL DUAL BAND CDMA [PCS/Cellular/w/GPS] CDMA MOBILE PHONE LG Electronics Inc. - 1/148 -...

  • Page 3: Table Of Contents

    CHPATER 2. NAM Input Method 1. NAM Program Method and Telephone Number Inputting Method……………………16 CHAPTER 3. Circuit Description 1. RF Transmit/Receive Part……………………………………………………………….……26 2. Digital/Voice Processing Part……………………………………………………………….32 CHAPTER 4. Trouble Shooting………………………………………………………………...37 CHAPTER 5. Safety……………………………………………………………………..………133 CHAPTER 6. Glossary……………………………………………………………………….…136 APPENDIX…………………………………………………………………………………...……148 LG Electronics Inc. - 2/148 -...

  • Page 4: General Introduction

    General Introduction General Introduction The MX8550 phone has been designed to operate on the latest digital mobile communication technology, Code Division Multiple Access (CDMA). This CDMA digital technology has greatly enhanced voice clarity and can provide a variety of advanced features. Currently, CDMA mobile communication technology has been commercially used in Cellular and Personal Communication Service (PCS).

  • Page 5: Chapter 1. System Introduction

    At this time, the spectrums of other signals that have different codes are not recovered into its original state, and appears as the self-interference of the system. LG Electronics Inc. - 4/148 -...

  • Page 6: Features And Advantages Of Cdma Mobile Phone

    1.25msec (800 times per second). By doing so, the gain tolerance and the different radio propagation loss on the forward/backward link are complemented. LG Electronics Inc. - 5/148 -...
  • Page 7 That is, each mobile station signal generates interference in relation to the signals of all the other mobile stations. LG Electronics Inc. - 6/148 -...
  • Page 8 In addition, in the CDMA system, services and service charges are classified further into different classes so that more transmit power can be allocated to high class service users for easier call set-up; they can also be given higher priority of using hand-off function than the general users. LG Electronics Inc. - 7/148 -...

  • Page 9: Structure And Functions Of Dual-Band Cdma Mobile Phone

    (AGC Amp). Then, they are converted into RF band by the frequency synthesizer synchronizing these signals to proper output frequencies. Transmit signals obtained pass through the duplexer filter and then, are sent out to the cell site via the antenna. LG Electronics Inc. - 8/148 -...

  • Page 10: Specification

    4.1.10 Battery Type, Capacity and Operating Time. Unit = Hours : Minutes Standard (800mAh) CELLULAR About 165 Hours (SCI=2) Standby Time About 165 Hours (SCI=2) CELLULAR 140 Minutes (-92dBm input) Talk time 140 Minutes (-92dBm input) LG Electronics Inc. - 9/148 -...
  • Page 11 CELLULAR : 0.224W PCS: 0.224W 4.3.3 Interference Rejection Single Tone : -30dBm at 900 kHz (CELLULAR), -30dBm at 1.25MHz(PCS) Two Tone : -43dBm at 900 kHz & 1700kHz(CELLULAR), -43dBm at 1.25 MHz & 2.05 MHz (PCS) LG Electronics Inc. - 10/148 -...
  • Page 12 Center Freq Ch # Center Freq Ch # Center Freq (MHz) (MHz) (MHz) 1851.25 1871.25 1891.25 1852.50 1872.50 1892.50 1853.75 1873.75 1893.75 1855.00 1875.00 1895.00 1856.25 1876.25 1896.25 1857.50 1877.50 1897.50 1858.75 1878.75 1898.75 LG Electronics Inc. - 11/148 -...
  • Page 13 Ch # (MHz) (MHz) (MHz) 1931.25 1951.25 1971.25 1932.50 1952.50 1972.50 1933.75 1953.75 1973.75 1935.00 1955.00 1975.00 1936.25 1956.25 1976.25 1937.50 1957.50 1977.50 1938.75 1958.75 1978.75 1940.00 1960.00 1000 1980.00 1941.25 1961.25 1025 1981.25 LG Electronics Inc. - 12/148 -...
  • Page 14 1150 1987.50 1948.75 1968.75 1175 1988.75 4.5.3 GPS mode : 1575.42 MHz 4.5.4 Bluetooth mode : 2400 MHz ~ 2483.5 MHz 4.6 AC Adaptor : See Appendix 4.7 Cigar Lighter Charger : See Appendix LG Electronics Inc. - 13/148 -...

  • Page 15: Installation

    5.3.4. Microphone Installation Install the microphone either by clipping I onto the sunvisor (driver’s side) or by attaching it to door post (driver’s side), using a velcro adhesive tape (not included). 5.3.5 Cable Connections LG Electronics Inc. - 14/148 -...
  • Page 16 Connect the kit’s power cable connector to the interface box power receptacle. 5.3.5.2 Antenna Cable Connection Connect the antenna coupler cable connector from the cradle to the external antenna connector. ( Antenna is not included.) LG Electronics Inc. - 15/148 -...

  • Page 17: Nam Program Method And Telephone Number Inputting Method

    CHAPTER 2. NAM Input Method CHAPTER 2. NAM Input Method (Inputting of telephone numbers included) (Inputting of telephone numbers included) 1. NAM Programming Method 1) Press “##77647268550” + “SEND” and then, press “000000” 2) Press “1” key for entering “Service Prg.”. ●...
  • Page 18 You can edit the NAM1 Phone Number (MDN). Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Exit” (Contacts) to edit previous NAM1 items. 5) NAM1 Phone Number (MIN) You can edit the NAM1 Phone Number (MIN). Press softkey “OK”...
  • Page 19 You can edit the NAM1 Name. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back” (Contacts) to edit previous NAM1 items. 8) More NAM1 Programming You can decide to edit more NAM1 Name. Press softkey “OK” (Message key) to exit Service Programming. Press softkey “More”...
  • Page 20 You can edit NAM1 Mobile Country Code. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back” (Contacts) to edit previous NAM1 items. 11) NAM1 NMSID You can edit NAM1 NMSID. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back”...
  • Page 21 You can edit NAM1 True IMSI NMSID. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back” (Contacts) to edit previous NAM1 items. 14) NAM1 PRL Enabled You can see NAM1 PRL Enabled. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back”...
  • Page 22 You can edit NAM1 CDMA Pri. Channel A. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back” (Contacts) to edit previous NAM1 items. 17) NAM1 CDMA Sec. CH A You can edit NAM1 CDMA Secondary Channel A. Press softkey “OK”...
  • Page 23 You can edit NAM1 CDMA Secondary Channel B. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back” (Contacts) to edit previous NAM1 items. 20) Lockout SID/NID You can edit Lockout SID/NID pair. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back”...
  • Page 24 You can edit NAM1 Foreign SID Registration. Press softkey “OK” (Message key) to edit more NAM1 items. Press softkey “Back” (Contacts) to edit previous NAM1 items. Press Left, Right, Up, Down key to toggle Yes/No. 23) NAM1 Forn NID Reg You can edit NAM1 Foreign NID Registration.
  • Page 25 You can decide to edit NAM2 items. Press softkey “OK” (Message key) to skip NAM2 items setting. Press softkey “Edit” (Contacts) to edit NAM2 related items. 26) Phone Model You can see the Phone Model Number. Press softkey “OK” (Message key) to edit more items. Press softkey “Back”...
  • Page 26 Restart.

  • Page 27: Chapter 3. Circuit Description

    After that, the RF signal is amplified by the Power Amp in order to have enough power for radiation. Finally, the RF signal is sent out to the cell site via the antenna after going through the duplexer. LG Electronics Inc. - 26/148 -...
  • Page 28 MX8550 [Figure 1-1] RF Block Diagram of VX8550 LG Electronics Inc. - 27/148 -...
  • Page 29 Cellular duplexer TX to RX (min) Pass Band 824~849 MHz 869~894 MHz Insertion Loss 2.3B max 3.5dB max Return Loss 9dB min 8dB min 55dB (824~849MHz) Attenuation 45dB min (869~894MHz) 54dB min (824~849MHz) 47dB (869~894MHz) LG Electronics Inc. - 28/148 -...
  • Page 30 1.2.5 RX RF SAW FILTER(F101, F102) The main function of RX RF SAW filter is to attenuate mobile phone spurious frequency, attenuate noise amplified by the LNA and suppress second harmonic originating in the LNA. LG Electronics Inc. - 29/148 -...
  • Page 31 Offset Quadrature Phase Shift King (OQPSK). I and Q are 90 deg. out of phase, and I and I/ are 180 deg. The mixers in RFT6150 converts baseband signals into RF signals. After passing through the upconverters, RF signal is inputted into the Power AMP. LG Electronics Inc. - 30/148 -...
  • Page 32 19.2 MHz. The receiver frequency tuning signals called TRK_LO_ADJ from MSM as 0.5 V~2.5 V DC via R and C filter in order to generate the reference frequency of 19.2 MHz and input it into the frequency synthesizer. Frequency stability depending on temperature is ±2.0 ppm. LG Electronics Inc. - 31/148 -...

  • Page 33: Digital/Voice Processing Part

    The memory part is made up of a NAND Flash memory and a SDRAM for storing data. 2.2.5 Power Supply Part The power supply part is made up of circuits for generating various types of power, used for the digital/voice processing part. LG Electronics Inc. - 32/148 -...

  • Page 34: Circuit Description

    When received, I and Q data are demodulated into symbols by the demodulator, and then de-interleaved in reverse to the case of transmission. Then, the errors of data received from Viterbi decoder are detected and corrected. They are voice-decoded at the Vocoder in order to output digital voice data. LG Electronics Inc. - 33/148 -...
  • Page 35 MX8550 [Figure 2-2] Block Diagram of Digital/Voice Processing Part LG Electronics Inc. - 34/148 -...
  • Page 36 LCD module contains a controller which will display the information onto the LCD by 16-bit data from the MSM6500. It is also supplied stable +2.8V_LCD by Out3 in U303 for fine view angle and LCD reflects to improve the display efficiency. 3 LEDs is used to display LCD backlight. LG Electronics Inc. - 35/148 -...
  • Page 37 It supports I2S audio data format between DSP and codec. A speaker amplifier, using digital amplifier system, realizes low power consumption than that of linear amplifier. In addition, power-down mode is available to minimize the current consumption when used. LG Electronics Inc. - 36/148 -...

  • Page 38: Chapter 4. Trouble Shooting

    - Sector Power: - 30 dB m Spectrum Analyzer Setting Oscilloscope Setting 3. Check Control signal 1. Check DC Power Supply circuit 4. Check RF Signal path 2. Check VCTCXO 5. Check Rx I/Q data Redownload S /W, Cal LG Electronics Inc. - 37/148 -...
  • Page 39 MX8550 4.1.1.1 Checking DC Power supply circuit (PMIC) Test Point Test Point R328 R330 Circuit Diagram Circuit Diagram LG Electronics Inc. - 38/148 -...
  • Page 40 Refer to Logic troubleshoot Check R328 The Problem may be Lo gic part +2.6V_MSMP2 is OK? Refer to Logic troubleshoot DC Po wer supply Circuit is OK. See next Page to check VCTCXO circuit LG Electronics Inc. - 39/148 -...
  • Page 41 MX8550 4.1.1.2 Checking VCTCXO circuit Test Point Test Point X100 pin3 X100 pin4 Circuit Diagram Circuit Diagram LG Electronics Inc. - 40/148 -...
  • Page 42 Replace X100 and then check C152, R107. VCTCXO circuit is Ok . See next page Is it similar? to check control signal . Replace Main B /D Waveform Waveform Figure 4.1.1 (a) Figure 4.1.1 (b) LG Electronics Inc. - 41/148 -...
  • Page 43 MX8550 4.1.1.3 Checking Control signal Test Point Test Point U110 pin49(SBST0) pin50(SBDT0) pin51(SBCK0) Circuit Diagram Circuit Diagram LG Electronics Inc. - 42/148 -...
  • Page 44 Control signal is Ok . See next page Check if there is any major difference referring to check RF signal path . To Figure 4.1.1 (c), (d) Replace Main B /D Waveform Waveform Figure 4.1.1 (c) Figure 4.1.1 (d) LG Electronics Inc. - 43/148 -...
  • Page 45 4.1.1.4 Checking RF signal path (Mobile S/W, Diplexer, Duplexer) Test Point Test Point F105. Pin6 Pin2 L104, L139 DP100. Pin3 C103, L103 L117, C126 L125, C136 Circuit Diagram Circuit Diagram PCS Tx DCN Tx PCS Rx DCN Rx LG Electronics Inc. - 44/148 -...
  • Page 46 To Figure 4.1.1 (g). Is any signal detected at that point? Is any signal detected at Check L117, C126, L125, C136 that point? RF signal path is OK. See next page to Rx I/Q data signal LG Electronics Inc. - 45/148 -...
  • Page 47 MX8550 Waveform Waveform U101 pin2 4.1.1 (e) F105 pin6 4.1.1 (f) DP100 pin3 4.1.1 (g) LG Electronics Inc. - 46/148 -...
  • Page 48 MX8550 4.1.1.5 Checking Rx I/Q data Test Point Test Point U110 Pin7 (RX0_QM) Pin8 (RX0_QP) Pin9 (RX0_IM) Pin10 (RX0_IP) Circuit Diagram Circuit Diagram LG Electronics Inc. - 47/148 -...
  • Page 49 To Figure 4.1.1 (h), (i) All DCN Rx check is completed . If the phone still do not work , change Main B /D . Waveform Waveform RX0_QP RX0_IP RX0_Q RX0_IM RX_Q_ RX_Q_ Graph 4.1.1(i) Graph 4.1.1(h) LG Electronics Inc. - 48/148 -...
  • Page 50 - Sect or Power: - 30 dB m Spec trum Analyzer Setting Osc illosc ope Setting 3. Check Control signal 1. Check DC Power Supply circuit 4. Check RF Signal path 2. Check VCTCXO 5. Check Rx I/Q data Redownload S/W, Cal LG Electronics Inc. - 49/148 -...
  • Page 51 MX8550 4.1.2.1 Checking DC Power supply circuit (PMIC) Test Point Test Point R328 R330 Circuit Diagram Circuit Diagram LG Electronics Inc. - 50/148 -...
  • Page 52 Check R328 The Proble m may be Lo gic part +2.6V_MSMP2 is OK? Refer to Logic troubles hoot DC Po wer supply Circuit is OK. See next Page to c hec k VCTCXO circuit LG Electronics Inc. - 51/148 -...
  • Page 53 MX8550 4.1.2.2 Checking VCTCXO circuit Test Point Test Point X100 pin3 X100 pin4 Circuit Diagram Circuit Diagram LG Electronics Inc. - 52/148 -...
  • Page 54 Replace X100 and then check C152, R107. VCTCXO circuit is Ok . See next page Is it similar? to check control signal . Replace Main B /D Waveform Waveform Figure 4.1.1 (a) Figure 4.1.1 (b) LG Electronics Inc. - 53/148 -...
  • Page 55 MX8550 4.1.2.3 Checking Control circuit Test Point Test Point U110 pin49(SBST0) pin50(SBDT0) pin51(SBCK0) Circuit Diagram Circuit Diagram LG Electronics Inc. - 54/148 -...
  • Page 56 Control signal is Ok . See next page Check if there is any major difference referring to check RF signal path . To Figure 4.1.1 (c), (d) Replace Main B /D Waveform Waveform Figure 4.1.1 (c) Figure 4.1.1 (d) LG Electronics Inc. - 55/148 -...
  • Page 57 4.1.2.4 Checking RF signal path (Mobile S/W, Diplexer, Duplexer) Test Point Test Point F105. Pin4 C185, L140, L106 Pin2 DP101. Pin3 C103, L103 C135, C127 L126, C134 Circuit Diagram Circuit Diagram PCS Tx DCN Tx PCS Rx DCN Rx LG Electronics Inc. - 56/148 -...
  • Page 58 To Figure 4.1.1 (g). Is any signal detected at that point? Is any signal detected at Check C135, C127, L126, C134 that point? RF signal path is OK. See next page to Rx I/Q data signal LG Electronics Inc. - 57/148 -...
  • Page 59 MX8550 Waveform Waveform U101 Pin 2 F105 Pin 4 DP101 Pin 2 LG Electronics Inc. - 58/148 -...
  • Page 60 MX8550 4.1.2.5 Checking Rx I/Q data Test Point Test Point U110 Pin7 (RX0_QM) Pin8 (RX0_QP) Pin9 (RX0_IM) Pin10 (RX0_IP) Circuit Diagram Circuit Diagram LG Electronics Inc. - 59/148 -...
  • Page 61 To Figure 4.1.1 (h), (i) All DCN Rx check is completed . If the phone still do not work , change Main B /D . Waveform Waveform RX0_QP RX0_IP RX0_Q RX0_IM RX_Q_ RX_Q_ Graph 4.1.1(i) Graph 4.1.1(h) LG Electronics Inc. - 60/148 -...
  • Page 62 ? Measure frequency domain waveform with Spectrum analyser ? Measure time domain waveform with Oscilloscope 6. Check Duplexer 1. Check DC Power Supply circuit 7. Check Diplexer 2. Check VCTCXO 8. Check Mobile Switch 3. Check RFT6150 Redownload S/W, Cal LG Electronics Inc. - 61/148 -...
  • Page 63 MX8550 4.2.1.1 Checking DC Power supply circuit (PMIC) Test Point Test Point R328 R333 Circuit Diagram Circuit Diagram LG Electronics Inc. - 62/148 -...
  • Page 64 Refer to Logic troubleshoot Check R328 The Problem may be Lo gic part +2.6V_MSMP2 is OK? Refer to Logic troubleshoot DC Po wer supply Circuit is OK. See next Page to check VCTCXO circuit LG Electronics Inc. - 63/148 -...
  • Page 65 MX8550 4.2.1.2 Checking VCTCXO circuit Test Point Test Point X100 pin3 X100 pin4 Circuit Diagram Circuit Diagram LG Electronics Inc. - 64/148 -...
  • Page 66 Replace X100 and then check C152, R107. VCTCXO circuit is Ok . See next page Is it similar? to check control signal . Replace Main B /D Waveform Waveform Figure 4.1.1 (a) Figure 4.1.1 (b) LG Electronics Inc. - 65/148 -...
  • Page 67 Test Point Test Point CELL_OUT PIN15 PIN23 TCXO TX_QP PIN 27 TX_QM PIN 28 U111 PIN 29 PIN 30 TX_IP PIN 1, 2, 3, 4 TX_IM TX_ON, SBCK0, SBDT0, SBST0 Circuit Diagram Circuit Diagram LG Electronics Inc. - 66/148 -...
  • Page 68 Check pin15 at U111 (TCXO signal) Check TCXO circuit. referring to Figure 4.2.1.4 (b). Is it similar? Check pin2, 3, 4 at U111 referring Check SBI signal line & MSM To Figure 4.2.1.4 (d). Is it similar? Replace U111 LG Electronics Inc. - 67/148 -...
  • Page 69 MX8550 Waveform Waveform Graph 4.2.1.4(A) Graph 4.2.1.4(C) RX_I_P RX_Q_P RX_Q_N RX_I_N Graph 4.2.1.4(B) Graph 4.2.1.4(D) LG Electronics Inc. - 68/148 -...
  • Page 70 Checking Flow Waveform Start RF_IN fed up with CW signal RF_IN Check pin1, 3 at F104. Referring to RF Tx SAW is OK Figure 4.2.1.5. Is it similar? Replace F 104 RF_OUT Figure 4.2.1.5 LG Electronics Inc. - 69/148 -...
  • Page 71 MX8550 4.2.1.5 Check DCN PAM circuit Test Point Test Point RFOUT_CELL VCCA VEN_CELL RFIN_CELL VMODE VBATT Circuit Diagram Circuit Diagram PCS Tx DCN Tx LG Electronics Inc. - 70/148 -...
  • Page 72 Check pin3 at U107(PA_R1 signal) Check PA_R1 line whether it is lower than 2.2V. Replace U107 Waveform Waveform RF_IN fed up with CW signal in low gain mode of PAM RF_IN RF_OUT Figure 4.2.1.6 LG Electronics Inc. - 71/148 -...
  • Page 73 Circuit Diagram ANT_PORT DP100 TX_PORT Checking Flow Waveform Checking Flow Waveform Start Check pin1, 3 Tx Port at DP101. Referring to Duplexer is Figure 4.2.2.7. Is it similar? Replace DP 101 ANT Port Figure 4.2.1.7 LG Electronics Inc. - 72/148 -...
  • Page 74 Ant Port DCN Rx F105 DCN Port Checking Flow Waveform Checking Flow Waveform Start Check pin2, 4 DCN Port at F105. Referring to Diplexer is Figure 4.2.2.8. Is it similar? Replace F 105 ANT Port LG Electronics Inc. - 73/148 -...
  • Page 75 RF IN Checking Flow Waveform Checking Flow Waveform Start RF IN Check pin1, 2 at U101. Referring to Mobile S /W is Figure 4.2.1.9. Is it similar? Replace F 105 RF OUT Figure 4.2.1.9 LG Electronics Inc. - 74/148 -...
  • Page 76 ? Measure frequency domain waveform with Spectrum analyser ? Measure time domain waveform with Oscilloscope 6. Check Duplexer 1. Check DC Power Supply circuit 7. Check Diplexer 2. Check VCTCXO 8. Check Mobile Switch 3. Check RFT6150 Redownload S/W, Cal LG Electronics Inc. - 75/148 -...
  • Page 77 MX8550 4.2.2.1 Checking DC Power supply circuit (PMIC) Test Point Test Point R328 R333 Circuit Diagram Circuit Diagram LG Electronics Inc. - 76/148 -...
  • Page 78 Check R328 The Proble m may be Lo gic part +2.6V_MSMP2 is OK? Refer to Logic troubles hoot DC Po wer supply Circuit is OK. See next Page to c hec k VCTCXO circuit LG Electronics Inc. - 77/148 -...
  • Page 79 MX8550 4.2.2.2 Checking VCTCXO circuit Test Point Test Point X100 pin3 X100 pin4 Circuit Diagram Circuit Diagram LG Electronics Inc. - 78/148 -...
  • Page 80 Replace X100 and then check C152, R107. VCTCXO circuit is Ok . See next page Is it similar? to check control signal . Replace Main B /D Waveform Waveform Figure 4.1.1 (a) Figure 4.1.1 (b) LG Electronics Inc. - 79/148 -...
  • Page 81 Test Point Test Point PCS_OUT PIN15 PIN21 TCXO TX_QP PIN 27 TX_QM PIN 28 U111 PIN 29 PIN 30 TX_IP PIN 1, 2, 3, 4 TX_IM TX_ON, SBCK0, SBDT0, SBST0 Circuit Diagram Circuit Diagram LG Electronics Inc. - 80/148 -...
  • Page 82 Check pin15 at U111 (TCXO signal) Check TCXO circuit. referring to Figure 4.2.2.4 (b). Is it similar? Check pin2, 3, 4 at U111 referring Check SBI signal line & MSM To Figure 4.2.2.4 (d). Is it similar? Replace U111 LG Electronics Inc. - 81/148 -...
  • Page 83 MX8550 Waveform Waveform Graph 4.2.2.4(A) Graph 4.2.2.4(C) RX_I_P RX_Q_P RX_Q_N RX_I_N Graph 4.2.2.4(B) Graph 4.2.2.4(D) LG Electronics Inc. - 82/148 -...
  • Page 84 Waveform Checking Flow Waveform Start RF_IN fed up with CW signal Check pin1, 4 at F103. Referring to RF_IN RF Tx SAW is Figure 4.2.2.5. Is it similar? Replace F 103 RF_OUT Figure 4.2.2.5 LG Electronics Inc. - 83/148 -...
  • Page 85 MX8550 4.2.2.5 Check DCN PAM circuit Test Point Test Point RFOUT_PCS VMODE VBATT VEN_PCS RFIN_PCS Circuit Diagram Circuit Diagram PCS Tx DCN Tx LG Electronics Inc. - 84/148 -...
  • Page 86 2.2V. Check pin3 at U107(PA_R1 signal) Check PA_R1 line whether it is lower than 2.2V. Replace U107 Waveform Waveform RF_IN fed up with CW signal in low gain mode of PAM RF_OUT Figure 4.2.2.6 LG Electronics Inc. - 85/148 -...
  • Page 87 Circuit Diagram ANT_PORT DP101 TX_PORT Checking Flow Waveform Checking Flow Waveform Start Check pin1, 3 Tx Port at DP101. Referring to Duplexer is Figure 4.2.2.7. Is it similar? Replace DP 101 ANT Port Figure 4.2.2.7 LG Electronics Inc. - 86/148 -...
  • Page 88 F105 PCS Port Checking Flow Waveform Checking Flow Waveform Start Check pin2, 6 PCS Port at F105. Referring to Diplexer is OK Figure 4.2.1.8. Is it similar? Replace F 105 ANT Port Figure 4.2.2.8 LG Electronics Inc. - 87/148 -...
  • Page 89 RF IN Checking Flow Waveform Checking Flow Waveform Start RF IN Check pin1, 2 at U101. Referring to Mobile S /W is Figure 4.2.1.9. Is it similar? Replace F 105 RF OUT Figure 4.2.2.9 LG Electronics Inc. - 88/148 -...
  • Page 90 4.3 Logic Part Trouble 4.3.1 Power 4.3.1.1 Power-On Trouble Circuit Diagram Circuit Diagram +1.4_MSMC L301 R328 +2.6V_MSMP2 +1.8_MSMP1 +2.9V_RX R330 L302 R331 +2.6V_MSMA R332 +2.8V_TCXO Test point Test point +1.8V_MSMP1 +2.8V_TCXO +1.4V_MSMC +2.6V_MSMP2 U303 +2.9V_RX +2.6V_MSMA LG Electronics Inc. - 89/148 -...
  • Page 91 Logic level at PS _ HOLD (R306 ) and try again of U303=High ? Does it work properly ? Does it work properly ? Re-download software and try again Re-download software and try again The Phone will power on LG Electronics Inc. - 90/148 -...
  • Page 92 MX8550 4.3.1.1 Charging Trouble Circuit Diagram Circuit Diagram Battery Vcc +VPWR +5V_CHAR +5V_USB Test point Test point Pin1 CON 701 U306 U702 +5V_USB of D301 pin2 +5V_CHAR of D301 pin1 LG Electronics Inc. - 91/148 -...
  • Page 93 Voltage of pin 1 CON701 = Check the soldering VBATT(+VPWR) Replace U702 Re-solder U702 The battery may have the problem. Is the battery charged? Change the battery and try again. Charging will operate properly LG Electronics Inc. - 92/148 -...
  • Page 94 MX8550 4.3.2 DSP 4.3.2.1 DSP Trouble Circuit Diagram Circuit Diagram R700 Clock out – 28MHz C702 DSP_RESET/ TP700 TP701 TP702 TP703 TP704 TP705 LG Electronics Inc. - 93/148 -...
  • Page 95 MX8550 R324 R325 +2.6V_DSP_IO2 +1.8V_DSP_IO1 R326 +1.2V_DSP_CORE1 R321 +1.2V_DSP_IO2 Test point Test point C702 TP704 TP703 TP701 TP702 TP700 TP705 R700 LG Electronics Inc. - 94/148 -...
  • Page 96 Check the voltage of the following LDOs Replace U307, U308, U309, U310 +1.2V_DSP_CORE 1, +1.2V_DSP_CORE 2, +1.8V_DSP_IO1 +2.6V_DSP_IO2 Check DSP Clock at R700 Replace X700 Check the control signal Replace U701 TP700 ~TP705 & C702 DSP will operate properly LG Electronics Inc. - 95/148 -...
  • Page 97 - The assembly status of the main connector - The Soldering of connector F205 F206 F208 F207 LCD Control signals From DSP : LCD_D[0:15], LCD_CS/, LCD_WE, LCD_ID, From MSM : LCD_RESET/, Test point Test point F208 F209 F206 F207 F205 LG Electronics Inc. - 96/148 -...
  • Page 98 Check theV oltage of R329 = 2.8V? Replace U 303 Check the Con trol signal Data [ 0:15] Check F205, F206, F207, F208, F209 (Signal line ) LCD_RESET/, LCD_CS/, WE/ Check CON 202soldering Re-solderCON202 LCD display will work properly LG Electronics Inc. - 97/148 -...
  • Page 99 Circuit Diagram R106 CAM_SCL R107 CAM_SDA C100 +1.8V_C AM_D C113 CAM_MCLK C101 +2.6V_C AM_IO C108 C102 CAM_PCLK +2.8V_CA C107 CAM_RESET/ Test point Test point F101 F100 C113 C109 C110 C107 C108 U106 U105 U104 LG Electronics Inc. - 98/148 -...
  • Page 100 LDOs: +1.8V_CAM_D, Replace U104, U105, U106 +2.6V_CAM_IO, +2.8V_CAM_A Check the Control signal Check F100, F101, C107, C108, C109, C110, CAM_DATA[0:7], CAM_RESET/, C113(Signal line), CAM_SDA, CAM_SCL Check CON100 Soldering Re-solder CON100 Camera will work properly LG Electronics Inc. - 99/148 -...
  • Page 101 MX8550 4.3.5 Audio 4.3.5.1 Speaker Trouble Circuit Diagram Circuit Diagram R525 Level C519 HPH_L C520 HPH_R translated clock R533 +2.8V_TCXO CODEC part R530 R532 +3.0V_DSP_SD +1.8V_MSMP1 MIC Analog S/W part R532 +VPWR Headset Amp. part LG Electronics Inc. - 100/148...
  • Page 102 R533 Resolder U517 with heat gun Check the soldering at Check the audio signal at CON 501 Replace U516 U516 Resolder U516 with heat gun Check the state of speaker contact Speaker will work properly LG Electronics Inc. - 101/148...
  • Page 103 MX8550 4.3.5.2 Receiver Trouble Circuit Diagram Circuit Diagram R601 RCV- R602 RCV+ Test point Test point R601 R602 LG Electronics Inc. - 102/148...
  • Page 104 FPCB are open or not between the pin Replace FPCB 44/45 of 80pin connector and the receiver pad RCV+/RCV- Check the soldering of receiver Check the signal at RCV+/RCV- Replace Receiver Resolder receiver Receiver will work properly LG Electronics Inc. - 103/148...
  • Page 105 R525 Level C519 HPH_L C520 HPH_R translated clock R533 +2.8V_TCXO U518 CODEC CODEC part R530 R532 +3.0V_DSP_SD +1.8V_MSMP1 MIC Analog S/W part R532 +VPWR Headset Amp. part C537 EAR_L R526 +2.6V_MSMA C538 EAR_R U516 Headset amp LG Electronics Inc. - 104/148...
  • Page 106 MX8550 EAR_MIC_KEY part U303 PMIC Receptacle part 18PIN_DETECT pull-up C427 RHP_EJ 4pole Earjack part C428 LHP_EJ LG Electronics Inc. - 105/148...
  • Page 107 MX8550 Test point Test point C427 C428 CON401 CON400 R422 U303 C537 C538 C519 U516 C520 R526 U518 LG Electronics Inc. - 106/148...
  • Page 108 ? Set the audio part of the test equipment to continuous wave mode : Headset receiving Can you hear the Sound from headset ? path problem : Headset sending path problem Headset will work properly LG Electronics Inc. - 107/148...
  • Page 109 R526 whether it is 2.6V with heat gun Resolder R 526 Replace U518 Check the soldering of CON 401 or Resolder CON 4 01 or CON 400 Pin4, 5 of CON 400 Replace Main B / D LG Electronics Inc. - 108/148...
  • Page 110 CON403 Whether its range is Check the soldering of U 303 1.65~2.1V Resolder U 303 with heat gun Replace U303 Check the voltage at R 425 Redownload S / W Whether its state is low LG Electronics Inc. - 109/148...
  • Page 111 CON403 Whether its range is Check the soldering of U 303 1.65~2.1V Resolder U 303 with heat gun Replace U303 Does it work ? Redownload S / W Does it work well ? Replace Main B / D LG Electronics Inc. - 110/148...
  • Page 112 MX8550 4.3.5.4 MIC Trouble Circuit Diagram Circuit Diagram MIC Bias MIC+ MIC- Network MIC PAD - MIC PAD + LG Electronics Inc. - 111/148...
  • Page 113 MX8550 Test point Test point network U501 R538 R210 C207 C208 LG Electronics Inc. - 112/148...
  • Page 114 Resolder U501 Each side of MIC Check the signal level at R210 Resolder MIC Check the soldering at C207, C208 Resolder C207, C208 Check the soldering of MIC network Resolder MIC network MIC will work properly LG Electronics Inc. - 113/148...
  • Page 115 MX8550 4.3.6 Backlight 4.3.6.1 Numeric key backlight Circuit Diagram Circuit Diagram LED600 side lighting LED601 side lighting Q600 LED Switching Tr. Test point Test point Q600 LG Electronics Inc. - 114/148...
  • Page 116 3.3 ~ 4.2V? Check the soldering of each R andLEDS, Are all LEDs working ? or replace if not wor king Is Q600 working ? Replace Q 600 Main key backlight w ill work properly LG Electronics Inc. - 115/148...
  • Page 117 4.3.6.2 Touch key backlight Circuit Diagram Circuit Diagram LED111 Clear key LED110 Speaker key LED109 Soft key Left LED108 Soft key Right Q102 LED Switching Tr. Test point Test point Q102 R118 R120 R122 R115 LG Electronics Inc. - 116/148...
  • Page 118 Check the soldering of each R and LEDS , R115, R118, R120, R122 or replace if not wor king LED108, LED109, LED110, LED111 Is Q102 working ? Replace Q 102 Touch key backlight w ill work properly LG Electronics Inc. - 117/148...
  • Page 119 C145 Charge pump output4 pump output1 U101 Charge Pump C147 Charge C146 Charge pump output3 pump output2 C134 Charge pump Input U102 U105 Expander1 Expander2 U103 U104 Expander3 Expander4 R134 a resistor for adjusting light difference LG Electronics Inc. - 118/148...
  • Page 120 MX8550 Test point Test point C147 R134 U103 U105 U104 U101 U102 R128 C148 C145 C134 C146 LG Electronics Inc. - 119/148...
  • Page 121 Check the R134 whether it is 56ohm LEDs are short-circuited. Are there short-circuited? Resolder Dual LEDs Replace key PCB Replace the expanders(U102, 103, 104, 105 in key PCB) which are related with miss- lighted LEDS Wheel light will work properly LG Electronics Inc. - 120/148...
  • Page 122 It +VPWR level? Check the voltage level at pin 54, 55, 56 of CON600 of Main B/D. Is Resolder CON101 of FPCB It +VPWR level? Replace U101 Replace Main B/D Wheel light will work properly LG Electronics Inc. - 121/148...
  • Page 123 CON101 of FPCB. Is there any pulse or Replace FPCB something? Check the voltage at pin 28 of CON600 of Main B/D. Is there any Resolder CON101 of FPCB pulse or something? Replace Main B/D LG Electronics Inc. - 122/148...
  • Page 124 ~ 27 of CON101 of FPCB. Is there any Replace FPCB pulse or something? Check the voltage at pin 24 ~ 27 of CON600 of Main B/D. Is there any Resolder CON101 of FPCB pulse or something? Replace Main B/D LG Electronics Inc. - 123/148...
  • Page 125 MX8550 4.3.7 The Wheel operation Circuit Diagram Circuit Diagram Q101 wheel supply switching Tr. C143 +2.6V_WHEEL Test point Test point C143 Q101 LG Electronics Inc. - 124/148...
  • Page 126 Check the light -diffusing - Replace the light - Is the wheel moving well mechanically sheet like white ring in the upper case diffusing sheet whether it is well -positioned Replace the wheel The wheel w ill work properly LG Electronics Inc. - 125/148...
  • Page 127 ? Check the voltage at pin 35 of CON 600 of Main B /D. Is there any pulse when you Resolder CON 101 of FPCB keep moving the wheel ? Replace Main B /D LG Electronics Inc. - 126/148...
  • Page 128 MX8550 4.3.8 Vibrator Circuit Diagram Circuit Diagram Motor driving Motor Bias input Tr. Test point Test point Q602 Q601 R610 R611 R612 LG Electronics Inc. - 127/148...
  • Page 129 Change the main board Check soldering of R610, R611, R612 Re-solder R125, R126, R129 Is Q602, Q603 Working? Replace Q102, Q103 Check the state at contact of vibrator Re-contact vibrator Replace Vibrator The vibrator will Work properly LG Electronics Inc. - 128/148...
  • Page 130 Mechanical Figure for Touch function Mechanical Figure for Touch function Well- positioned defect Sensing pattern of Mismatch Upper window case key PCB : Conductive gasket which gives connection between upper window and sensing patterns of key PCB LG Electronics Inc. - 129/148...
  • Page 131 Check the voltage of C 138 whether it is 2.6V. Check the signal at R 129, 130, 131. Is there any pulse when you press touch key ? Replace U106 Touch key will work properly LG Electronics Inc. - 130/148...
  • Page 132 Is it 2.6V when you press touch key ? Check the voltage at pin 29 of CON600 of Main B/D. Resolder CON101 of FPCB Is it 2.6V when you press touch key ? Replace Main B/D LG Electronics Inc. - 131/148...
  • Page 133 Replace FPCB press touch key ? Check the signal at pin 32, 33, 34 of CON600 of Main B/D. Is there any pulse when Resolder CON101 of FPCB you press touch key ? Replace Main B/D LG Electronics Inc. - 132/148...

  • Page 134: Chapter 5. Safety

    If so, use only a manufacture approves antenna. Otherwise, take your phone to a qualifies service center for repair. Use only the supplied or approved antenna. Non-approved antennas, modifications, or attachments, could impair call quality, damage the phone, and violate FCC regulations. LG Electronics Inc. - 133/148...

  • Page 135: Electronic Devices

    LG Electronics Inc. - 134/148...
  • Page 136 Park, Quincy, MA 02269, Attn: Publication Sales Division. Rule of Thumb: Using common sense at all times when handling, installing or using the phone. Any questions should be directed to you nearest Service Center or authorized service technician or electrician. LG Electronics Inc. - 135/148...

  • Page 137: Chapter 6. Glossary

    A-key. A secret, 64-bit pattern stored in the mobile station. It is used to generate update the mobile station’s Shared Secret Data. The A-key is used in the mobile station authentication process. LG Electronics Inc. - 136/148...
  • Page 138 Neighbor Set, and Remaining Set. . See Code Division Multiple Access CDMA Channel. The set of channels transmitted between the base station within a given CDMA frequency assignment. See also Forward CDMA Channel and Reverse CDMA Channel. LG Electronics Inc. - 137/148...
  • Page 139 Digital Color Code (DCC). A digital signal transmitted by a base station on a forward analog control channel that is used to detect capture of a base station by an interfering mobile station. Dim-and-Burst. A frame in which primary traffic is multiplexed with either secondary traffic or signaling traffic. LG Electronics Inc. - 138/148...
  • Page 140 Channels. The Forward CDMA Channel always carries a Pilot Channel and may carry up to one Sync Channel, up to seven Paging Channels, and up to 63 Traffic Channels, as long as the total number of channels, including the Pilot Channel, is no greater than 64. LG Electronics Inc. - 139/148...
  • Page 141 Layer 2. Layer 2 provides for the correct transmission and reception of signaling messages, including partial duplicate detection. See also Layering and Layer 3. Layer 3. Layer 3 provides the control of the Cellular telephone systems. Signaling messages originate and terminate at layer 3. See also Layering and Layer 2. LG Electronics Inc. - 140/148...
  • Page 142 Mobile Station Terminated Call. A call received by a mobile station (not to be confused with a disconnect or call release). Mobile Switching Center (MSC). A configuration of equipment that provides Cellular radiotelephone service. Also called the Mobile Telephone Switching Office (MTSO) LG Electronics Inc. - 141/148...
  • Page 143 OLC. See Overload Class (CDMA) or Overload Control (analog). Optional Field. A field defined within a message structure that is optionally to the message recipient. Order. A type of message that contains control codes for either the mobile station or the base station. LG Electronics Inc. - 142/148...
  • Page 144 CDMA Channel and the Reserve CDMA Channel. Different base station are identified by different pilot PN sequence offsets. Pilot PN Sequence Offset Index. The PN offset in units of 64 PN chips of a pilot, relative to the zero offset pilot PN sequence. LG Electronics Inc. - 143/148...
  • Page 145 Active Set, Candidate Set, and Neighbor Set. See also Active Set, Candidate Set, and Neighbor Set. Request. A layer 3 message generated by either the mobile station or the base station to retrieve information, ask for service, or command an action. LG Electronics Inc. - 144/148...
  • Page 146 Slot Cycle. A periodic interval at which a mobile station operating in the slotted monitors the Paging Channel. Slotted Mode. An operation mode of the mobile station in which the mobile station monitors only selected slots on the Paging Channel when in the Mobile Station Idle State. LG Electronics Inc. - 145/148...
  • Page 147 The counter is incremented an average of once per 80 ms period. Time Reference. A reference established by the mobile station that is synchronous with the earliest arriving multipath component used for demodulation. LG Electronics Inc. - 146/148...
  • Page 148 ‘0’ to 1 and ‘1’ to –1). Zone-Based Registration. An autonomous registration method in which the mobile station registers whenever it enters a zone that is not in the mobile station’s zone list. ㎲. Microsecond LG Electronics Inc. - 147/148...

  • Page 149: Appendix

    Appendix Assembly and Disassembly diagram Block and Circuit diagram Part List Component Layout Accessories - AC adaptor - Handsfree kit - Cigar Light Charger - Data kit WLPST(LGE Product Support Tool for WIN98, 2000, XP) LG Electronics Inc. - 148/148...
  • Page 150 1. Assembly and Disassembly Diagram...
  • Page 152 2. Block and Circuit Diagram...
  • Page 153 CP0402A1880ENTR AWT6320R MSM Core Tx_I B9003 Coupler JTAG I/F ARM926EJS with Jazelle LMV228TLX-NOPB Tx_Q HDET Modem Dual PAM QDSP4000 QDSP4000 SBI Control LO Gen &Dist Processors Gain CDMA Control FAR-F6KA- Coupler High Processor 1X, 1G8800- Circuits Efficiency CP0402A1880ENTR L4AF 1X EV-DO Tx VCO GSM/GPRS Processor...

  • Page 154: Block Diagram

    Power CODEC YMU800 PMIC LP3919 MIC IN EBI1 DSP Core MSM Core 512MBit Mono 8bit ADC for ARM926EJ-S Li-Ion Linear SDRAM JTAG I/F 48kHz sampling & battery Charger Control 16bit H/W Video Codec (MPEG4/H.263) ARM926EJS A- IN Separate volume control(L, R) EBI2 LDOX9 RESET...
  • Page 155 MX8550 MX8550 SCHEMATIC & LAUOUT 1. Main PCB : Revision 1.0 2. Slide Key PCB : Revision 1.0 3. FPCB : Revision 1.0 4. Side Key : Revision 1.0...
  • Page 156 CDMA ANT: DCN ANT: DCN TX: DCN RX: PCS ANT: PCS TX: PCS RX: GPS:...
  • Page 167 3. Part List...
  • Page 168 Main PCB Component List Ref No. Part No. Value Part Name Part Decription MLAZ00 LABEL MLAZ0038301 PID Label 4 Array LG-VX6000 PCB ASSY,MAIN,SMT SAFC00 BOTTOM SAFC0089601 C101 INDUCTOR,CHIP ELCH0001403 LL1005-FHL1N0S 1 nH,S ,1005 ,R/TP ,PBFREE C102 RES,CHIP,MAKER ERHZ0000401 MCR01MZSJ000 0 ohm,1/16W ,J ,1005 ,R/TP...
  • Page 169 Ref No. Part Decription Part No. Value Part Name C160 CAP,CERAMIC,CHIP ECCH0002001 100000 pF,6.3V ,K ,B ,HD ,1005 ,R/TP C1005JB0J104KT C161 CAP,CHIP,MAKER ECZH0000830 C1005C0G1H330JT 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C162 CAP,CERAMIC,CHIP ECCH0000122 MCH155A470JK 47 pF,50V,J,NP0,TC,1005,R/TP C163 CAP,CERAMIC,CHIP ECCH0000155 MCH153CN103KK 10 nF,16V,K,X7R,HD,1005,R/TP C164...
  • Page 170 Ref No. Part Decription Part No. Value Part Name C234 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP MCH153CN103KK C235 CAP,CERAMIC,CHIP ECCH0002001 C1005JB0J104KT 100000 pF,6.3V ,K ,B ,HD ,1005 ,R/TP C236 CAP,CERAMIC,CHIP ECCH0002001 C1005JB0J104KT 100000 pF,6.3V ,K ,B ,HD ,1005 ,R/TP C237 CAP,CERAMIC,CHIP ECCH0000155 MCH153CN103KK 10 nF,16V,K,X7R,HD,1005,R/TP C331...
  • Page 171 Ref No. Part Decription Part No. Value Part Name C719 CAP,TANTAL,CHIP ECTH0001901 10 uF,6.3V ,M ,L_ESR ,1608 ,R/TP F980J106MMA C720 CAP,CERAMIC,CHIP ECCH0002001 C1005JB0J104KT 100000 pF,6.3V ,K ,B ,HD ,1005 ,R/TP C721 CAP,CHIP,MAKER ECZH0025916 GRM0335C1E330J 33 pF,25V ,J ,NP0 ,TC ,0603 ,R/TP C722 CAP,CHIP,MAKER ECZH0025916...
  • Page 172 56 nH,J ,1005 ,R/TP ,PBFREE LL1005-FHL56NJ L140 INDUCTOR,CHIP ELCH0001421 LL1005-FHL47NJ 47 nH,J ,1005 ,R/TP ,PBFREE L700 FILTER,EMI/POWER SFEY0001602 KNH21104 SMD ,LG-P610 Q302 TR,FET,N-CHANNEL EQFN0005601 KTK5132E ESM ,100 mW,30 V,100 mA,R/TP , Q303 TR,FET,N-CHANNEL EQFN0005601 ESM ,100 mW,30 V,100 mA,R/TP , KTK5132E...
  • Page 173 Ref No. Part Decription Part No. Value Part Name R206 RES,CHIP ERHY0009505 10 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP MCR006MZPJ103 R213 RES,CHIP,MAKER ERHZ0000433 MCR01MZSJ184 180 Kohm,1/16W ,J ,1005 ,R/TP R214 RES,CHIP,MAKER ERHZ0000433 MCR01MZSJ184 180 Kohm,1/16W ,J ,1005 ,R/TP R215 RES,CHIP,MAKER ERHZ0000405 MCR01MZSJ103 10 Kohm,1/16W ,J ,1005 ,R/TP R216 RES,CHIP,MAKER...
  • Page 174 Ref No. Part Decription Part No. Value Part Name R720 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP MCR01MZSJ101 R721 RES,CHIP ERHY0009513 MCR006MZPJ184 180 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R722 RES,CHIP ERHY0009527 MCR006MZPJ473 47 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R723 RES,CHIP ERHY0009527 MCR006MZPJ473 47 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R724 RES,CHIP...
  • Page 175 Ref No. Part Decription Part No. Value Part Name PCB ASSY,MAIN,SMT SAFD00 SAFD0088901 C207 CAP,CERAMIC,CHIP ECCH0000179 GRM36X5R223K16PT 22 nF,16V ,K ,X5R ,HD ,1005 ,R/TP C208 CAP,CERAMIC,CHIP ECCH0000179 GRM36X5R223K16PT 22 nF,16V ,K ,X5R ,HD ,1005 ,R/TP C209 CAP,CERAMIC,CHIP ECCH0000179 22 nF,16V ,K ,X5R ,HD ,1005 ,R/TP GRM36X5R223K16PT C210 CAP,CERAMIC,CHIP...
  • Page 176 Ref No. Part Decription Part No. Value Part Name C600 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C1005C0G1H330JT C601 CAP,CHIP,MAKER ECZH0000830 C1005C0G1H330JT 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C602 CAP,CHIP,MAKER ECZH0000830 C1005C0G1H330JT 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C603 CAP,CHIP,MAKER ECZH0000830...
  • Page 177 Ref No. Part Decription Part No. Value Part Name C702 CAP,CERAMIC,CHIP ECCH0009111 100 nF,6.3V ,Z ,X5R ,TC ,0603 ,R/TP C0603X5R0J104ZT C713 CAP,CERAMIC,CHIP ECCH0002001 C1005JB0J104KT 100000 pF,6.3V ,K ,B ,HD ,1005 ,R/TP C714 CAP,CERAMIC,CHIP ECCH0002001 C1005JB0J104KT 100000 pF,6.3V ,K ,B ,HD ,1005 ,R/TP C715 CAP,CERAMIC,CHIP ECCH0002001...
  • Page 178 Ref No. Part Decription Part No. Value Part Name R529 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP MCR01MZSJ513 R530 RES,CHIP,MAKER ERHZ0000401 MCR01MZSJ000 0 ohm,1/16W ,J ,1005 ,R/TP R531 RES,CHIP,MAKER ERHZ0000401 MCR01MZSJ000 0 ohm,1/16W ,J ,1005 ,R/TP R532 RES,CHIP,MAKER ERHZ0000401 MCR01MZSJ000 0 ohm,1/16W ,J ,1005 ,R/TP R533 RES,CHIP,MAKER...
  • Page 179 Key PCB Component List Ref No. Part Decription Part No. Value Part Name SAEC00 ASSY,KEYPAD,SMT SAEC0021401 BOTTOM C100 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP GRM155R60J105KE19D C101 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP GRM155R60J105KE19D C102 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP...
  • Page 180 Ref No. Part Decription Part No. Value Part Name TSOPJW-12 ,12 PIN,R/TP ,CHARGE PUMP FOR WHITE U101 EUSY0227401 AAT3140ITP LED / MAX - 4 LEDS U102 EUSY0173801 SC70JW ,8 PIN,R/TP ,5 Individual Load Switch AAT4290IJS U103 EUSY0173801 SC70JW ,8 PIN,R/TP ,5 Individual Load Switch AAT4290IJS U104 EUSY0173801...
  • Page 181 FPCB Component List Ref No. Part Decription Part No. Value Part Name SACC00 PCB ASSY,FLEXIBLE,SM SACC0031701 C100 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C1005X5R1A105KT C101 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C1005X5R1A105KT C102 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C1005X5R1A105KT...
  • Page 182 4. Components Layout...
  • Page 183 U519 Slide S/W Q602 Motor Driving Q601 Motor BIAS A3212EELLT-T U303 PMIC Input Tr. KRC402V Tr. KTN2907A LP3919 U518 Headset Amp. U516 YAMAHA CODEC U517 Clock level translator CON600 80pin B-to-B connector U600 DSP NAND Flash Memory MAX9722BETE YMU800-WZ FXLP34L6X AXK7L80227G 512MBits K9F1208U0C-JIB0...
  • Page 184 Q700 S/W Tr. SW601 Q303 S/W Tr. Q302 S/W Tr. F101 DCN/PCS RX U113 F102 GPS Differential KRX102E Music TACT S/W KTK5132E KTK5132E Dual SAW filter SAW filter GPS Mobile S/W MS-156NB FAR-G6KE- MS-156NB SF14-1575M5UB01 U702 Power 1G9600-Y4LY p-channel MOSFET NTHS5441T1G U305 Dual charger IC...

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