Page 1 Features of VX8610 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 = 0.28W PCS = 0.28W 4.
Page 2 VX8610 CDMA Mobile Subscriber Unit VX8610 SERVICE MANUAL SERVICE MANUAL DUAL BAND CDMA [PCS/Cellular/GPS] CDMA MOBILE PHONE Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 1 - Only for training and service purposes...
Page 3: Table Of Contents
3.1 Power…………………..87 3.2 LCD……………………...…..91 3.3 Camera…………………….…93 3.4 Audio………………….…….…...95 3.5 Backlight……………………..107 3.6 Vibrator…………………..……..111 CHAPTER 5. Safety……………………………113 CHAPTER 6. Glossary…………………..….…116 APPENDIX………………………………..……128 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 2 - Only for training and service purposes...
Page 4: General Introduction
Cellular uses 800MHz and PCS uses 1.9GHz. The VX8610 support GPS Mode, we usually call it tri-band phone. Also, VX8610 works on Advanced Mobile Phone Service (S-GPS). We call it dual- mode phone. If one of the Cellular, PCS base stations is located nearby, Call fail rate of triple-mode phone is less than dual-mode phone or single-mode phone.
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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 7 That is, each mobile station signal generates interference in relation to the signals of all the other mobile stations. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 9: Structure And Functions Of Dual-Band Cdma Mobile Phone
Transmit signals obtained pass through the duplexer filter and then, are sent out to the cell site via the antenna. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 10: Specification
About 380 Hours (SCI=2) Standby Time About 380 Hours (SCI=2) CELLULAR 150 Minutes (-92dBm input) Talk time 150 Minutes (-92dBm input) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 9 - Only for training and service purposes...
Page 11 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) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 12 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 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 11 - Only for training and service purposes...
Page 13 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 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 12 - Only for training and service purposes...
Page 14 4.5.4 Bluetooth mode : 2400 MHz ~ 2483.5 MHz 4.6 AC Adaptor : See Appendix 4.7 Cigar Lighter Charger : See Appendix Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 13 - Only for training and service purposes...
Page 15: 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 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 14 -...
Page 16 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.) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 15 - Only for training and service purposes...
Page 17: Chpater 2. Nam Input Method
You can see the MEID/ESN number. Press softkey “OK” to edit more NAM1 items. Press softkey “Exit” to exit Service Programming. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 16 - Only for training and service purposes...
Page 18 You can edit the NAM1 Home SID. Press softkey “OK” to edit more NAM1 items. Press softkey “Back” to edit previous NAM1 items. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 17 - Only for training and service purposes...
Page 19 You can edit Service Code. Press softkey “OK” to edit more NAM1 items. Press softkey “Back” to edit previous NAM1 items. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 18 - Only for training and service purposes...
Page 20 You can edit NAM1 True IMSI MCC. Press softkey “OK” to edit more NAM1 items. Press softkey “Back” to edit previous NAM1 items. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 19 - Only for training and service purposes...
Page 21 You can edit NAM1 Home SID/NID pair. Press softkey “OK” to edit more NAM1 items. Press softkey “Back” to edit previous NAM1 items. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 20 - Only for training and service purposes...
Page 22 You can edit NAM1 CDMA Primary Channel B. Press softkey “OK” to edit more NAM1 items. Press softkey “Back” to edit previous NAM1 items. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 21 -...
Page 23 You can edit NAM1 Home System Registration. Press softkey “OK” to edit more NAM1 items. Press softkey “Back” to edit previous NAM1 items. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 22 - Only for training and service purposes...
Page 24 You can view the NAM1 Access Overload Class. Press softkey “OK” to edit more NAM1 items. Press softkey “Back” to edit previous NAM1 items. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 23 -...
Page 25 You can edit Slot Cycle Index. Press softkey “OK” to save Slot Cycle Index. Press softkey “Back” to edit previous items. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 24 - Only for training and service purposes...
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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 29 It’s main function is to limit the bandwidth of spectrum reaching the LNA and mixer, attenuate receiver spurious response and suppress local oscillator energy. As a result frequency sensitivity and selectivity of mobile phone increase. The specification of VX8610 duplexer described below ; PCS duplexer:...
Page 30 The characteristics of Low Noise Amplifier (LNA) are low noise figure, high gain, high intercept point and high reverse isolation. The frequency selectivity characteristic of mobile phone is mostly determined by LNA. The specification of VX8610 GPS LNA is described below Parameter...
Page 31 Intercept Point (IIP3) requirements of IS-98D and J-STD-018 specifications for Sensitivity, Two-Tone Inter- modulation, and Single-tone Desensitization. Operation modes and band selection are specially controlled from the Mobile Station Modem MSM6550A. The specification of VX8610 Mixers is described below: Low gain High gain Units...
Page 32 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 33: Digital/Voice Processing Part
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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 32 -...
Page 34 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 35 MSM6550A. It is also supplied stable +2.8V_LCD by Out6 in U5002 for wide view angle and LCD reflects to improve the display efficiency. 4 LEDs is used to display LCD backlight. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 36: Chapter 4. Trouble Shooting
4. Check RF Signal path 2. Check VCTCXO 5. Check Rx I/Q data Redownload S /W , Cal Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 35 - Only for training and service purposes...
Page 37: Checking Dc Power Supply Circui(Pmic)
VX8610 4.1.1.1 Checking DC Power supply circuit (PMIC) Test Point Test Point C429 Circuit Diagram Circuit Diagram R323 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 36 - Only for training and service purposes...
Page 38 Refer to Logic troubles hoot DC Po wer supply Circuit is OK. See next Page to c hec k VCTCXO circuit Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 37 - Only for training and service purposes...
Page 39: Checking Vctcxo Circuit
VX8610 4.1.1.2 Checking VCTCXO circuit Test Point Test Point U109 pin3 U109 pin4 Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 38 - Only for training and service purposes...
Page 40 Is it similar? to check control signal . Replace Main B /D Waveform Waveform Figure 4.1.1 (a) Figure 4.1.1 (b) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 39 - Only for training and service purposes...
Page 41: Checking Control Signal
VX8610 4.1.1.3 Checking Control signal Test Point Test Point U110 pin51(SBCK0) pin50(SBDT0) pin49(SBST0) Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 40 - Only for training and service purposes...
Page 42 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) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 41 - Only for training and service purposes...
Page 43: Checking Rf Signal Path (Mobile S/W, Diplexer, Duplexer)
U102 Mobile S/W Pin4 PCS Tx F101 Pin6 DCN Tx PCS Rx DCN Rx Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 42 - Only for training and service purposes...
Page 44 Check L115, C125 that point? RF signal path is OK. See next page to Rx I/Q data signal Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 43 - Only for training and service purposes...
Page 45 VX8610 Waveform Waveform U101 pin2 4.1.1 (e) F101 pin6 4.1.1 (f) DP100 pin3 4.1.1 (g) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 44 - Only for training and service purposes...
Page 46: Checking Rx I/Q Data
4.1.1.5 Checking Rx I/Q data Test Point Test Point U110 Pin7 (RX0_Q_M) Pin8 (RX0_Q_P) Pin9 (RX0_I_M) Pin10 (RX0_I_P) Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 45 - Only for training and service purposes...
Page 47 Pin 7 & 8 (Rx_Q_M & Rx_Q_P) Pin 7 & 9 (Rx_Q_M & Rx_I_M) Graph 4.1.1(i) Graph 4.1.1(h) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 46 - Only for training and service purposes...
Page 48: Pcs Rx
DC Power Supply circuit 4. Check RF Signal path 2. Check VCTCXO 5. Check Rx I/Q data Redownload S/W, Cal Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 47 - Only for training and service purposes...
Page 49: Checking Dc Power Supply Circuit (Pmic)
VX8610 4.1.2.1 Checking DC Power supply circuit (PMIC) Test Point Test Point C429 R323 Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 48 - Only for training and service purposes...
Page 50 Refer to Logic troubles hoot DC Po wer supply Circuit is OK. See next Page to c hec k VCTCXO circuit Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 49 - Only for training and service purposes...
Page 51: Checking Vctcxo Circuit
VX8610 4.1.2.2 Checking VCTCXO circuit Test Point Test Point U109 pin3 U109 pin4 Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 50 - Only for training and service purposes...
Page 52 Is it similar? to check control signal . Replace Main B /D Waveform Waveform Figure 4.1.2 (a) Figure 4.1.2 (b) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 51 - Only for training and service purposes...
Page 53: Checking Control Signal
VX8610 4.1.2.3 Checking Control signal Test Point Test Point U110 pin51(SBCK0) pin50(SBDT0) pin49(SBST0) Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 52 - Only for training and service purposes...
Page 54 RF signal path . To Figure 4.1.2 (c), (d) Replace Main B /D Waveform Waveform Figure 4.1.2 (c) Figure 4.1.2 (d) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 53 - Only for training and service purposes...
Page 55: Checking Rf Signal Path (Mobile S/W, Diplexer, Duplexer)
U101 Pin3 Pin2 F101 Pin4 PCS Tx DCN Tx C111,L110,L112 PCS Rx DCN Rx Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 54 - Only for training and service purposes...
Page 56 Is any signal detected at Check L119,C121,C127 that point? RF signal path is OK. See next page to Rx I/Q data signal Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 55 - Only for training and service purposes...
Page 57 VX8610 Waveform Waveform U101 Pin 2 4.1.2 (e) F101 Pin 4 4.1.2 (f) DP101 Pin 3 4.1.2 (g) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 56 - Only for training and service purposes...
Page 58: Checking Rx I/Q Data
U112 Pin7 (RX0_QM) Pin8 (RX0_Q_P) Pin8 (RX0_QP) Pin9 (RX0_I_M) Pin9 (RX0_IM) Pin10 (RX0_I_P) Pin10 (RX0_IP) Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 57 - Only for training and service purposes...
Page 59 Pin 7 & 8 (Rx_Q_M & Rx_Q_P) Pin 7 & 9 (Rx_Q_M & Rx_I_M) Graph 4.1.2 (i) Graph 4.1.2 (h) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 58 - Only for training and service purposes...
Page 60: Tx Part Trouble Shooting
DC Power Supply circuit 7. Check Diplexer 2. Check VCTCXO 8. Check Mobile Switch 3. Check RFT6150 Redownload S/W, Cal Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 59 - Only for training and service purposes...
Page 61: Checking Dc Power Supply Circuit (Pmic)
VX8610 4.2.1.1 Checking DC Power supply circuit (PMIC) Test Point Test Point C425 R419 Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 60 - Only for training and service purposes...
Page 62 Refer to Logic trouble shoot DC Po wer supply Circuit is OK. See next Page to c hec k VCTCXO circuit Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 61 - Only for training and service purposes...
Page 63: Checking Vctcxo Circuit
VX8610 4.2.1.2 Checking VCTCXO circuit Test Point Test Point U109 pin3 U109 pin4 Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 62 - Only for training and service purposes...
Page 64 Is it similar? to check control signal . Replace Main B /D Waveform Waveform Figure 4.2.1 (a) Figure 4.2.1 (b) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 63 - Only for training and service purposes...
Page 65: Checking Rft6150 Circuit
PIN 29 PIN 30 TX_IP PIN 1, 2, 3, 4 TX_IM TX_ON, SBCK0, SBDT0, SBST0 Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 64 - Only for training and service purposes...
Page 66 Check pin2, 3, 4(TP5) at U111 Check SBI signal line & MSM Referring to Figure 4.2.1(f) Is it similar? Replace U111 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 65 - Only for training and service purposes...
Page 67 Waveform Waveform Graph 4.2.1(c) Graph 4.2.1 (f) Tx_IP & Tx_IM Tx_IP & Tx_QP Graph 4.2.1(d) Graph 4.2.1 (e) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 66 - Only for training and service purposes...
Page 68: Check Dcn Rf Tx Saw
F 104 . Referring to Figure 4 .2 .1(h) Is it similar ? RF_OUT Replace F 104 Figure 4.2.1(h) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 67 - Only for training and service purposes...
Page 69: Check Dcn Pam Circuit
4.2.1.5 Check DCN PAM circuit Test Point Test Point VBATT VCCA RFIN_CELL U107 RFOUT_CELL VMODE VEN_CELL Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 68 - Only for training and service purposes...
Page 70 Waveform Waveform RF_IN fed up with CW signal in low gain mode of PAM RF_IN RF_OUT Figure 4.2.1(i) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 69 - Only for training and service purposes...
Page 71: Check Dcn Duplexer
DP 100 . Referring to Figure 4.2.1(j) Is it similar ? Replace DP 100 ANT Port Figure 4.2.1(j) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 70 - Only for training and service purposes...
Page 72: Check Diplexer
Diplexer is pin6(TP2) at DP100. Referring to Figure 4.2.1(k) Is it similar ? Replace F101 ANT Port Figure 4.2.1(k) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 71 - Only for training and service purposes...
Page 73: Check Mobile S/W
Mobile S/W is at U101 . Referring to Figure 4.2.1(l) Is it similar ? Replace U101 RF OUT Figure 4.2.1(l) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 72 - Only for training and service purposes...
Page 74: Pcs Tx
DC Power Supply circuit 7. Check Diplexer 2. Check VCTCXO 8. Check Mobile Switch 3. Check RFT6150 Redownload S/W, Cal Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 73 - Only for training and service purposes...
Page 75: Checking Dc Power Supply Circuit (Pmic)
4.2.2.1 Checking DC Power supply circuit (PMIC) Test Point Test Point PMIC Circuit Diagram Circuit Diagram TP 1 TP 2 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 74 - Only for training and service purposes...
Page 76 Refer to Logic trouble shoot DC Po wer supply Circuit is OK. See next Page to c hec k VCTCXO circuit Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 75 - Only for training and service purposes...
Page 77: Checking Vctcxo Circuit
Test Point Test Point C156 Pin #3 Pin #4 R114 Circuit Diagram Circuit Diagram TP 2 TP 1 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 76 - Only for training and service purposes...
Page 78 Is it similar? to check control signal . Replace Main B /D Waveform Waveform Figure 4.2.2 (a) Figure 4.2.2 (b) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 77 - Only for training and service purposes...
Page 79: Checking Rft6150 Circuit
PIN 29 PIN 30 TX_IP PIN 1, 2, 3, 4 TX_IM TX_ON, SBCK0, SBDT0, SBST0 Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 78 - Only for training and service purposes...
Page 80 Check pin2, 3, 4(TP5) at U111 Check SBI signal line & MSM Referring to Figure 4.2.2(f) Is it similar? Replace U111 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 79 - Only for training and service purposes...
Page 81 Waveform Waveform Graph 4.2.2(c) Graph 4.2.2 (f) Tx_IP & Tx_IM Tx_IP & Tx_QP Graph 4.2.2(d) Graph 4.2.2 (e) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 80 - Only for training and service purposes...
Page 82: Check Pcs Rf Tx Saw
F 103 . Referring to Figure 4 .2 .2(h) Is it similar? RF_OUT Replace F 103 Figure 4.2.2(h) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 81 - Only for training and service purposes...
Page 83: Check Pcs Pam Circuit
4.2.2.5 Check PCS PAM circuit Test Point Test Point VEN_PCS VMODE RFIN_PCS VBATT RFOUT_PCS VCCA Circuit Diagram Circuit Diagram Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 82 - Only for training and service purposes...
Page 84 Replace U108 Waveform Waveform RF_IN fed up with CW signal in low gain mode of PAM RF_OUT Figure 4.2.2(i) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 83 - Only for training and service purposes...
Page 85: Check Diplexer
2(TP2) at U103 . Referring to Figure 4.2.2(k) Is it similar ? Replace U 103 ANT Port Figure 4.2.2(k) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 84 - Only for training and service purposes...
Page 86: Check Pcs Duplexer
DP 101 . Referring to Figure 4.2.2(j) Is it similar ? Replace DP 101 ANT Port Figure 4.2.2(j) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 85 - Only for training and service purposes...
Page 87: Check Mobile S/W
U101 . Referring to Figure 4.2.2(l) Is it similar ? Replace U 101 RF OUT Figure 4.2.2(l) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 86 - Only for training and service purposes...
Page 88: Logic Part Trouble Shooting
+2.8V_TCXO L402 +2.8V_TCXO L402 L401 L401 +1.8_MSMP +1.8_MSMP C423 C419 C424 C423 C419 C424 Test point Test point Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 87 - Only for training and service purposes...
Page 89 Does it work properly? Re-download software and try again Re-download software and try again The Phone will power on Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 88 - Only for training and service purposes...
Page 90 +5V_USB Or +5V_CHAR Battery Vcc +VBATT Test point Test point CON401 C403 +5V_CHAR or +5V_USB of D401 pin1 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 89 - Only for training and service purposes...
Page 91 The battery may have the problem. Is the battery charged? Change the battery and try again. Charging will operate properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 90 - Only for training and service purposes...
Page 92: Lcd
F505 F505 LCD Control signals From MSM : Test point Test point C520 CON500 F504 F506 F503 F505 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 91 - Only for training and service purposes...
Page 93 Check F503 ~ F506(Signal line ) LCD_RESET/, LCD_CS/, WE/ Check CON 500 Soldering Re-solderCON500 LCD display will work properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 92 - Only for training and service purposes...
Page 94: Camera
R505 CAM_RESET/ CAM_PCLK C433 +2.6V_CAMD C436 +2.8V_CAMA Test point F500 C433 C436 Test point F501 U403 R505 U404 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 93 - Only for training and service purposes...
Page 95 Check F500, F501 C522, C523, CAM_DATA[0:7], CAM_RESET/, (Signal line) CAM_SDA, CAM_SCL Check CON501 Soldering Re-solder CON501 Camera will work properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 94 - Only for training and service purposes...
Page 96: Audio
Circuit Diagram Test point Test point C301 HPH_R U300 Audio Amp C300 HPH_L C304 SPK_+ C303 SPK_- C316 VPWR+ Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 95 - Only for training and service purposes...
Page 97 C303, C304 Resolder C303, C304 Check the state of contact of speaker Replace speaker Speaker will work properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 96 - Only for training and service purposes...
Page 98 VX8610 4.3.4.2 Receiver Trouble Circuit Diagram Circuit Diagram Test point Test point C4013 RCV_N C4012 RCV_P Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 97 - Only for training and service purposes...
Page 99 Check the soldering of receiver Check the signal at RCV+/RCV- pad Replace Receiver Resolder Receiver Receiver will work properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 98 - Only for training and service purposes...
Page 100 VX8610 4.3.4.3 Headset Trouble Circuit Diagram Circuit Diagram AUDIO AMP EAR-JACK Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 99 - Only for training and service purposes...
Page 101 VX8610 Test point Test point U300 Audio Amp C300 HPH_L C301 HPH_R EAR_JACK_SENSE/ EAR_MIC LHP_EJ RHP_EJ Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 100 - Only for training and service purposes...
Page 102 : Headset receiving Sound from headset ? path problem : Headset sending path problem Headset will work properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 101 - Only for training and service purposes...
Page 103 Check the audio signal at R308, R309 with heat gun Resolder CON300 Check the soldering of CON300 Replace Main B/D Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 102 - Only for training and service purposes...
Page 104 Resolder CON300 with heat gun Replace CON300 When Headset is inserted Replace MSM or B/D Redownload S/W Check EAR_JACK_SENSE/ is low? Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 103 - Only for training and service purposes...
Page 105 Level of pin1 of CON300 Resolder CON300 Is 1.8~2.20V? Does it work? Download SW Does it work well? Change main board Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 104 - Only for training and service purposes...
Page 106 VX8610 4.3.4.4 MIC Trouble Circuit Diagram Circuit Diagram Test point Test point R510 MIC_BIAS MIC Network Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 105 - Only for training and service purposes...
Page 107 Resolder M1 Each side of MIC Check the soldering of MIC network Resolder MIC network MIC will work properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 106 - Only for training and service purposes...
Page 108: Backlight
Circuit Diagram Circuit Diagram LED500 side lighting LED501side lighting Q500 LED Switching Tr. Test point Test point Q500 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 107 - Only for training and service purposes...
Page 109 Is Q500 working? Replace Q 500 Main key backlight w ill work properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 108 - Only for training and service purposes...
Page 110 Main LCD Charge Pump Back Light out Single Wire Pulse Control Pin Test point Test point CON 201 U200 CON 202 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 109 - Only for training and service purposes...
Page 111 Checking the Connector (CON200)? Change CON200 Checking the Connector (CON201)? Change CON201 Main key backlight w ill work properly Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 110 - Only for training and service purposes...
Page 112: Vibrator
4.3.6 Vibrator Circuit Diagram Circuit Diagram R310 Q301 Q300 R307 Test point Test point MOTOR PAD R310 Q301 Q300 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 111 - Only for training and service purposes...
Page 113 Check the state at Re-contact vibrator Contact of Vibrator Replace Vibrator The vibrator will Work properly Motor + Motor - Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 112 - Only for training and service purposes...
Page 114: 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 113 -...
Page 116 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 117: 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 118 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 117 -...
Page 119 Dim-and-Burst. A frame in which primary traffic is multiplexed with either secondary traffic or signaling traffic. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 120 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 119 -...
Page 121 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 120 -...
Page 122 Mobile Switching Center (MSC). A configuration of equipment that provides Cellular radiotelephone service. Also called the Mobile Telephone Switching Office (MTSO) Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 121 - Only for training and service purposes...
Page 123 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 124 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 123 -...
Page 125 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 124 -...
Page 126 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only...
Page 127 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. Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 126 -...
Page 128 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 Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 127 -...
Page 129: Appendix
VX8610 Appendix Appendix Assembly and Disassembly diagram Block and Circuit diagram Part List Component Layout BGA Pin Map Copyright © 2007 LG Electronics. Inc. All right reserved LGE Internal Use Only - 128 - Only for training and service purposes...
Page 130 1. Assembly and Disassembly diagram...
Page 131 LG-VX8610 Internal Use Only ASSY EXPLODED VIEW...
Page 132 LG-VX8610 Internal Use Only FULL EXPLODED VIEW...
Page 133 2. Block and Circuit Diagram...
Page 134 Internal Use Only LG-VX8610 Block Diagram 19.2MHz PLL0 PLL0 PLL1 RFT6150 Tx LO frequency synthesizer performance specifications RFR6500 PLL0 and PLL1 performance specifications (RX0 and RX1)
Page 135 VX8610 Circuit Diagram ( Main/Sub/Key/FPCB )
Page 136 Main Board Circuit...
Page 137 Internal Use Only...
Page 138 Internal Use Only...
Page 139 Internal Use Only...
Page 140 Internal Use Only...
Page 141 Internal Use Only...
Page 142 Internal Use Only...
Page 143 Sub Board Circuit...
Page 144 Internal Use Only...
Page 145 Key Board Circuit...
Page 146 Internal Use Only...
Page 147 FPCB Circuit (LCD/Side Key/DTC)
Page 148 Internal Use Only...
Page 149 3. Part List...
Page 150 Main Component List Ref No. Part Description Part No. Value Part Name C100 CAP,CERAMIC,CHIP ECCH0000144 1.2 nF,50V,K,X7R,HD,1005,R/TP MCH155C122K C101 CAP,CHIP,MAKER ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C1005C0G1H101JT C102 CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP MCH155A470JK C103 CAP,CHIP,MAKER ECZH0000802 1 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C1005C0G1H010CT 100000 pF,16V ,Z ,X7R ,TC ,1005 ,R/TP , , ,[empty] ,[empty] ,[empty] ,[empty]...
Page 151 Internal Use Only C143 CAP,CERAMIC,CHIP ECCH0000149 3.3 nF,50V,K,X7R,HD,1005,R/TP MCH155CN332KK 100000 pF,16V ,Z ,X7R ,TC ,1005 ,R/TP , , ,[empty] ,[empty] ,[empty] ,[empty] C144 CAP,CHIP,MAKER ECZH0004402 ,[empty] ,[empty] MCH153C104ZK 100000 pF,16V ,Z ,X7R ,TC ,1005 ,R/TP , , ,[empty] ,[empty] ,[empty] ,[empty] C145 CAP,CHIP,MAKER ECZH0004402...
Page 152 Internal Use Only 100000 pF,16V ,Z ,X7R ,TC ,1005 ,R/TP , , ,[empty] ,[empty] ,[empty] ,[empty] C179 CAP,CHIP,MAKER ECZH0004402 ,[empty] ,[empty] MCH153C104ZK C180 CAP,CERAMIC,CHIP ECCH0005604 10 uF,6.3V ,M ,X5R ,TC ,1608 ,R/TP GRM188R60J106ME47D 100000 pF,16V ,Z ,X7R ,TC ,1005 ,R/TP , , ,[empty] ,[empty] ,[empty] ,[empty] C181 CAP,CHIP,MAKER...
Page 153 Internal Use Only C215 CAP,CERAMIC,CHIP ECCH0000157 15 nF,16V,K,X7R,HD,1005,R/TP MCH153CN153KK C217 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP MCH153CN103KK C218 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP MCH153CN103KK 100000 pF,16V ,Z ,X7R ,TC ,1005 ,R/TP , , ,[empty] ,[empty] ,[empty] ,[empty] C219 CAP,CHIP,MAKER ECZH0004402 ,[empty] ,[empty] MCH153C104ZK C220 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP...
Page 154 Internal Use Only 100000 pF,16V ,Z ,X7R ,TC ,1005 ,R/TP , , ,[empty] ,[empty] ,[empty] ,[empty] C316 CAP,CHIP,MAKER ECZH0004402 ,[empty] ,[empty] MCH153C104ZK C317 CAP,CERAMIC,CHIP ECCH0000129 120 pF,50V,J,NP0,TC,1005,R/TP MCH155A121JK C318 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP MCH153CN103KK C319 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP MCH155CN102KK C400 CAP,CHIP,MAKER ECZH0003503 1 uF,25V ,K ,X5R ,HD ,1608 ,R/TP...
Page 155 Internal Use Only C514 CAP,CERAMIC,CHIP ECCH0000118 30 pF,50V,J,NP0,TC,1005,R/TP MCH155A300J C515 CAP,CERAMIC,CHIP ECCH0000118 30 pF,50V,J,NP0,TC,1005,R/TP MCH155A300J C516 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP MCH155C150J C517 CAP,CERAMIC,CHIP ECCH0000118 30 pF,50V,J,NP0,TC,1005,R/TP MCH155A300J C518 CAP,CERAMIC,CHIP ECCH0000118 30 pF,50V,J,NP0,TC,1005,R/TP MCH155A300J C520 CAP,CERAMIC,CHIP ECCH0000118 30 pF,50V,J,NP0,TC,1005,R/TP MCH155A300J C521 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP MCH155C150J...
Page 156 Internal Use Only CON501 CONNECTOR,BOARD TO BOARD ENBY0020401 24 PIN,0.4 mm,ETC , ,H=0.9, Socket AXK7L24227G 40 PIN,0.4 mm,STRAIGHT , , ,; , ,0.40MM ,STRAIGHT ,FEMALE ,SMD CON502 CONNECTOR,BOARD TO BOARD ENBY0043901 ,[empty] , , AXK740427G D400 DIODE,TVS EDTY0007401 SMD ,12 V,350 W,R/TP , SD12T1G SOD-123 ,40 V,1 A,R/TP , ,;...
Page 157 Internal Use Only L105 CAP,CHIP,MAKER ECZH0000802 1 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C1005C0G1H010CT L106 INDUCTOR,CHIP ELCH0004704 4.7 nH,S ,1005 ,R/TP , 1005GC2T4N7S00 L107 INDUCTOR,CHIP ELCH0004715 27 nH,J ,1005 ,R/TP , 1005GC2T27NJ00 L110 INDUCTOR,CHIP ELCH0004705 8.2 nH,J ,1005 ,R/TP , 1005GC2T8N2J00 L111 INDUCTOR,CHIP...
Page 158 Internal Use Only R109 RES,CHIP,MAKER ERHZ0000291 49.9 ohm,1/16W ,F ,1005 ,R/TP MCR01MZSF49R9 R110 RES,CHIP,MAKER ERHZ0000424 16 ohm,1/16W ,J ,1005 ,R/TP MCR01MZSJ160 R111 RES,CHIP,MAKER ERHZ0000424 16 ohm,1/16W ,J ,1005 ,R/TP MCR01MZSJ160 R112 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP MCR01MZSJ103 R113 RES,CHIP,MAKER ERHZ0000211 1200 ohm,1/16W ,F ,1005 ,R/TP RC1005F122CS...
Page 159 Internal Use Only R309 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR R310 VARISTOR SEVY0005101 18 V, ,SMD ,5pF, 1005 ICVL0518050FR R311 VARISTOR SEVY0005101 18 V, ,SMD ,5pF, 1005 ICVL0518050FR R312 VARISTOR SEVY0005101 18 V, ,SMD ,5pF, 1005 ICVL0518050FR R314 VARISTOR SEVY0005101 18 V, ,SMD ,5pF, 1005 ICVL0518050FR...
Page 160 Internal Use Only ,SMD , dB,H=1.85 ,; ,3.00MM ,STRAIGHT ,RF ADAPTER ,SMD ,R/TP U101 CONN,RF SWITCH ENWY0005301 ,AU , , KMS-518 -20 dB,-0.25 dB,-35 dB,1.0*0.58*0.35 U103 COUPLER,RF DIRECTIONAL SCDY0003402 ,SMD ,1850M ~ 1910M, 4pin, Pb Free CP0402A1880ENTR SC70JW-8 ,714 mW,6 V,2.3 A,R/TP U104 TR,FET,P-CHANNEL EQFP0003501...
Page 161 Internal Use Only C601 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR C602 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR C603 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR C604 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR C605 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR...
Page 162 Internal Use Only SON1612-6 ,6 PIN,R/TP ,2.6V 150mA U404 EUSY0294901 LDO Pb-Free R1114D261D U612 EUSY0250001 Leaded ,4 PIN,R/TP ,Hall IC EM-1681-FT 48 MHz,50 PPM, pF,SMD ,3.2*2.5*1.0 , ,; X600 OSCILLATOR EXSY0022501 , ,50PPM ,3.3V , , , , ,SMD ,P/TP XF500G48003TEH00...
Page 163 Internal Use Only Sub Component List Ref No. Part Description Part No. Value Part Name C300 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C1005X5R1A105KT C301 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C1005X5R1A105KT C303 CAP,CERAMIC,CHIP ECCH0000118 30 pF,50V,J,NP0,TC,1005,R/TP MCH155A300J C304 CAP,CERAMIC,CHIP...
Page 164 Internal Use Only SC70JW-8 ,714 mW,6 V,2.3 A,R/TP U306 TR,FET,P-CHANNEL EQFP0003501 ,Slew Rate Controlled Load Switch AAT4280IJS-3-TI U307 EUSY0319201 DFN ,10 PIN,R/TP ,OVP NCP348MTTBG 24 MHz,50 PPM,15 pF,SMD X300 OSCILLATOR EXSY0021303 ,3.2*2.5*1.0 ,2.3V~3.2V, -30'C ~ +80'C CSC6R240000BEVRS00 C323 CAP,CERAMIC,CHIP ECCH0000118 30 pF,50V,J,NP0,TC,1005,R/TP MCH155A300J C324 CAP,CERAMIC,CHIP...
Page 165 Internal Use Only Key Component List Ref No. Part Description Part No. Value Part Name C200 CAP,CERAMIC,CHIP ECCH0000118 30 pF,50V,J,NP0,TC,1005,R/TP MCH155A300J C201 CAP,CHIP,MAKER ECZH0003503 1 uF,25V ,K ,X5R ,HD ,1608 ,R/TP GRM39X5R105K25PT C202 CAP,CHIP,MAKER ECZH0003503 1 uF,25V ,K ,X5R ,HD ,1608 ,R/TP GRM39X5R105K25PT C203 CAP,CHIP,MAKER...
Page 166 Internal Use Only R209 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR R210 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR R211 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR R212 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR R213 VARISTOR SEVY0003601 5.6 V, ,SMD ,100pF, 1005 ICVL0505101V150FR...
Page 167 4. Components Layout...
Page 168 Internal Use Only U104 CON100 F102 F106 U400 PAM Load S/W RF SWITCH DCN Rx Saw Filter GPS Saw Filter PMIC CON300 AAT4280IJS-3-TI CON301 MS-156NB B9318 B9417 LP3922 No Tx Power Ear Jack Micro SD Socket No GPS Signal Can’t make calls No GPS Signal No Power On 7000-2.5G-DB1-G...
Page 169 Internal Use Only U612 F600 Hall IC Bluetooth Filter X600 EM-1681 LFB212G45SG8A166 B/T Oscillator No Folder up/down Recognized No B/T Signal ICRT20S48M0X514CR No B/T Operated C608 R604 C600 R601 C621 R603 R605 R608 C601 C624 X600 R602 C606 R606 C602 C603 R607 LED500 / LED501...
Page 170 Internal Use Only C4013 C4012...
Page 171 Internal Use Only...
Page 172 Internal Use Only LED201 SW203 SW202 LED206 LED204 SW200 LED205 LED207 SW201 SW204 LED200 SW200 8-Way Multi Key SSAF420200...
Page 173 Internal Use Only CON201 CON200 C211 R200 U200 C202 C206 Q200 C201 C203 CON200 35PIN LCD Connector CON201 04-6293-035-001-829+ U200 50PIN Main Connector Charge LCD Pump AXT550124 AAT3169IFO-T1 Q200 No LCD Back-light BJT TR KTC4075E No Sub Key LED On...
Page 174 Internal Use Only Q301 Q300 D301 U307 Switching Diode KTN2907AU KRC402E KDS160E NCP348MTTBG No Motor Operated No Motor Operated U306 AAT4280IJS-3-TI No B/T Operated U305 D300 Q300 Switching Diode C315 C310 SDB1040 U304 U307 R311 C314 U306 U300 R300 C333 C320 CON300 U303...
Page 175 5. BGA Pin Map...
Page 176 Internal Use Only 2.U300 HYG0UGH0MF3 (EUSY0324801) 1.U204 MSM6550A (EUSY0216904) Used Used Not Used Not Used...
Page 177 Internal Use Only 3.U602 BCM2046SB1(EUSY0350101) 4.U611 SC16C850IET(EUSY0343901) Used Used Not Used Not Used...
Page 178 Internal Use Only 5.U400 LP3922(EUSY0346301) 6.U300 MAX9776EBJ(EUSY0316401 ) Used Used Not Used Not Used...

LG VX8610 Service Manual

CHAPTER 1. System Introduction

CHAPTER 3. Circuit Description

CHAPTER 4. Trouble Shooting

CHAPTER 5. Safety

CHAPTER 6. Glossary

Appendix

Quick Links

Troubleshooting

Related Manuals for LG VX8610

Summary of Contents for LG VX8610

Table of Contents