Page 1 Internal Use Only Service Manual GB230 Date: June, 2009 / Issue 1.0...
Page 2: Table Of Contents
4.11 Receiver Trouble ............93 4.12 Microphone Trouble ..........95 4.13 SIM Card Interface Trouble ........97 4.14 KEY backlight Trouble ..........99 Copyright © 2009 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...
Page 5: Only For Training And Service Purposes
• When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 6 - Copyright ©...
Page 6: Abbreviations
Light Emitting Diode OPLL Offset Phase Locked Loop LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only...
Page 7: Only For Training And Service Purposes
VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 8: System Specification
Loud Speaker Voice Recoding Microphone LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only...
Page 9: Only For Training And Service Purposes
Camera Bluetooth / FM Radio Bluetooth version 2.1 / 76~108MHz supported LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 10: Technical Speciﬁ Cation
±3dB ± 5dB 16dBm 0dBm LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only...
Page 11: Only For Training And Service Purposes
(due to switching transient) 1,200 1,800 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 12: Only For Training And Service Purposes
3,000 3,400 4,000 2±3 dB LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only...
Page 13: Only For Training And Service Purposes
Ringer Volume 1. Ringer set as ringer. 2. Test distance set as 50 cm LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 14 - Copyright ©...
Page 14: Only For Training And Service Purposes
Input: 100 ~ 350V, 50/60 Hz Output: 5.1 V, 400 mA LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 15 -...
Page 15: Technical Brief
3. TECHNICAL BRIEF 3.1 Digital Main Processor Figure. 3.1.1 X-Gold tm 213 Hardware Block Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 16 - Copyright ©...
Page 16: Only For Training And Service Purposes
– RSA(ROM)/SHA-1(HW accel.) – OCDS disabling – Certificate Management LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 -...
Page 17: Only For Training And Service Purposes
• 3 external analog measurement PIN’s • Bluetooth, A-GPS, WLAN support (I2C, I2S, SPI) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 18 - Copyright ©...
Page 18: Only For Training And Service Purposes
• Backlight – Up to 4 serial white LEDs (integrated LDO) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 19 -...
Page 19: Only For Training And Service Purposes
• True ring tones (MP3) • MP3, eAAC+ • G.722 SB-ADPCM encoding/decoding LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 20 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 20: Power Management
100mA. That is the load current estimated for the GSM talk mode. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 21 The RF module has implemented several LDO’s for different RF Power domain. The mixed signal module has some LDO’s for the audio driver and microphone supply. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 22 - Copyright ©...
Page 22 3. TECHNICAL BRIEF Table. 3-2-1 Power supply Domains (without RF) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 23 -...
Page 23 DCXO etc.) and controlled by the VCXO_enable signal. The reason for the startup is stored in the ResetSourceRead register. ▪ Battery Measurement LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 24 - Copyright ©...
Page 24 Figure.3.2.1 First Part of the State Machine, Running in Different Power Domains than the Second Part LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 25 3. TECHNICAL BRIEF Figure 3.2.2 Second (Main) Part of the Startup State Machine in the VPMU Domain LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 26 - Copyright ©...
Page 26 AC supply frequency. reasons LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 27 LCORE core regulator and wait for the core to reach reset state before powering up the I/O supply regulators. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 28 - Copyright ©...
Page 28 3. TECHNICAL BRIEF Figure 3.2.3 Start Up Sequence (triggered by First Connect Event) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 29 In testmode signal reset_pmu_n_o is high, that means the chip reset is fully controlled from external LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 30 - Copyright ©...
Page 30 RF. If rf_sysclk_en_pmu is low, the DXCO is switched off, independent from vcxo_enable. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 31 That means all PMU register are reset in OFF state. For details about the SW reset see chapter External Reset Handling LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 32 - Copyright ©...
Page 32 DC/DC converter out of a register table. (4-values) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 33 Before switching OFF the software shall have enabled the 32 kHz oscillator and has switched the PMU clock to the 32 kHz clock to archive the target OFF current LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 34 - Copyright ©...
Page 34: Fem With Integrated Power Ampliﬁ Er Module
DCS1800/PCS1900 bands. Both PA blocks share common power supply pads to distribute current. The output of each PA block and the LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 35: Only For Training And Service Purposes
2. RX1, RX2, RX3, and RX4 are broadband receive ports and each supports the GSM850, GSM900, DCS, and PCS bands. Figure 3.3.2 Band SW Logic Table Figure 3.3.3 FEM CIRCUIT DIAGRAM LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 36 - Copyright ©...
Page 36: Crystal(26 Mhz, X100)
This predistortion is performed by the linearization unit for crystal oscillator (LUXO). The LUXO calculates the corresponding DIG value according to the given AFC value. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 37: Rf Subsystem Of Pmb8810 (U101)
GSM850 or EGSM900, and one high band, DCS1800 or PCS1900. A block diagram of the RF subsystem is given in Figure 3-4-1. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 38 - Copyright ©...
Page 38: Only For Training And Service Purposes
DC offset removal and programmable gain control. Figure. 3.5.2 RECEIVER CHAIN BLOCK DIAGRAM LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 39 -...
Page 39: Only For Training And Service Purposes
The 26 MHz reference signal of the phase detector incorporated in the PLL is provided by the reference oscillator. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 40 - Copyright ©...
Page 40: Only For Training And Service Purposes
DAC. Figure. 3.5.4 PA AND FEM CONTROL BLOCK DIAGRAM LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 41: Only For Training And Service Purposes
One embedded direct-to-battery LDO provides the 2.5 V supply voltage for the remaining circuits. Figure. 3.5.5 POWER SUPPLY BLOCK DIAGRAM LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 42 - Copyright ©...
Page 42: Memory(Pf38F5060M0Y0Be, U100 )
133 MHz using CLK address-latching only on some litho/density combinations. It is listed below in the following table. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 43: Only For Training And Service Purposes
Enhanced Configuration Register. DPD is initiatied by asserting the DPD pin. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 44 - Copyright ©...
Page 44: Bt Module
Radio Specification and enhanced data rate specification and meets or exceed the requirement to provide the highest communication link quality of service. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 45: Only For Training And Service Purposes
The receiver by the cellular transmit signal. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 46 - Copyright ©...
Page 46: Sim Card Interface
This signal is transferred to SIM card. SIM_DATA This signal is interface datum. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 47 -...
Page 47: Lcd Interface
PDA, where long battery life is a major concern. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 48 - Copyright ©...
Page 48: Only For Training And Service Purposes
The two LDOs can be enabled when the device is in sleep mode. Total current reduces to 0.1μA in shutdown. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 49: Only For Training And Service Purposes
4.0mA or less. This feature results in higher efficiency under light-load conditions. Further reduction in quiescent current will result from using fewer than four LEDs. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 50 - Copyright ©...
Page 50: Battery Charger Interface
+6.9V to protect against unqualified or faulty AC adapters cables. The IC operates over the extended temperature range (-40°C to +85°C) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 51: Keypad Interface
KP_IN3 KP_IN4 Figure 3-11-2 SLIDE KEY STRUCTURE LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 52 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 52: Only For Training And Service Purposes
Figure 3-11-3 Block Diagram and System Integration of the KPD LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 53 -...
Page 53: Audio Front-End
The following figure shows an architecture overview of the Audio section. Figure 3.12.1 Audio Section Overview LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 54 - Copyright ©...
Page 54: Only For Training And Service Purposes
• The high-pass functions of the voiceband filters have to be implemented in firmware on TEAKLite®. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 55: Only For Training And Service Purposes
Loudspeaker driver, b) one mono, differential Earpiece driver and c) one stereo, single-ended (with uni- or bipolar signals), Headset driver. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 56 - Copyright ©...
Page 56: Only For Training And Service Purposes
The buffers are designed to be short circuit protected. Figure 3.12.3 Switching for R/L DACs onto Buffers LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 57: Only For Training And Service Purposes
To improve SNR the sample frequency can be doubled in dedicated modes and the modulated data stream is 4MHz instead of 2 MHz. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 58 - Copyright ©...
Page 58: Only For Training And Service Purposes
VMIC can be used for supplying this microphone. Figure 3.12.5 Typical Microphone Supply Generation (alternative) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 59: Camera Interface(2M Fixed Focus Camera)
Programming is done by register read/write transactions using an AHB slave interface. Figure 3.13.1 Block Diagram of Camera Interface LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 60 - Copyright ©...
Page 60: Only For Training And Service Purposes
• Power management by software controlled clock disabling of currently not needed sub-modules LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 61: Key Baclklight Led Interface
R510 100K Figure 3-14-1 Key Backlight Block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 62 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 62: Vibrator Interface
Figure 3-15-1 Vibrator Driver Block Diagram Figure 3-15-2 Vibrator Driver Block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 63 -...
Page 63: Slide Sw Interface
Therefore, to see whether the opening of the slide. Figure 3-16-1 Hall effect switch Block Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 64 - Copyright ©...
Page 64: Trouble Shooting
FEM(Tx Module) X100 Crystal, 26MHz Clock LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 65 - LGE Internal Use Only...
Page 65: Rx Trouble
(3) Check PLL Control Re-download SW or Do calibration again LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 66 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 66: Only For Training And Service Purposes
1 pin Figure 4.2.2 Figure 4.2.3 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 67 - LGE Internal Use Only...
Page 67: Only For Training And Service Purposes
CONTROL LOGIC EGSM Rx VLOGIC Tx_EN LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 68 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 68 L B _ T x H B _ T x LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 69 -...
Page 69: Tx Trouble
(3) Check PLL Control Redownload SW or Do calibration again LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 70 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 70: Only For Training And Service Purposes
1 pin Figure 4.3.2 Figure 4.3.3 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 71 - LGE Internal Use Only...
Page 71: Only For Training And Service Purposes
CONTROL LOGIC EGSM Tx VLOGIC Tx_EN LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 72 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 72: Only For Training And Service Purposes
L B _ T x H B _ T x LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 73 -...
Page 73: Power On Trouble
R115=0ohm Figure 4.1 Figure 4.2 Remote power on LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 74 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 74: Only For Training And Service Purposes
4. TROUBLE SHOOTING Figure 4.2 power block of GB230 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 75 -...
Page 75: Only For Training And Service Purposes
The phone will Replace the main board Properly operating. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 76 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 76: Only For Training And Service Purposes
CN200 U204 Figure 4.5 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only...
Page 77: Only For Training And Service Purposes
Replace the main board Charging is properly operating LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 78 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 78: Vibrator Trouble
Figure 4.6 CIRCUIT Main (U101) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only...
Page 79: Only For Training And Service Purposes
Replace vibrator Vibrator Working well ! LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 80 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 80: Lcd Trouble
R310 CN500 C316 Figure 4.7 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 81 - LGE Internal Use Only...
Page 81: Only For Training And Service Purposes
CN500 LCD_ID R504 150K LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 82 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82: Only For Training And Service Purposes
LCD_CS LCD_WR Graph 4.7.2. LCD Data Waveform LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 83 - LGE Internal Use Only...
Page 83: Only For Training And Service Purposes
Replace LCD module properly ? LCD working well ! LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 84 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 84: Camera Trouble
CN300 R301 R300 FL300 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 85 - LGE Internal Use Only Only for training and service purposes...
Page 85: Only For Training And Service Purposes
4. TROUBLE SHOOTING CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 86 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86: Only For Training And Service Purposes
Graph 4.8.4.CAM_HSYNC vs. CAM_HSYNC Waveform CAM_PCLK Waveform LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 87 - LGE Internal Use Only...
Page 87: Only For Training And Service Purposes
? Camera working well ! Figure 4-x. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 88 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 88: Speaker Trouble
C206 U201 Figure 4.9.1 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 89 - LGE Internal Use Only...
Page 89: Only For Training And Service Purposes
Speaker Working well!! Working well!! LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 90 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 90: Earphone Trouble
R211 R212 U101 Figure 4.10.1 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 91 - LGE Internal Use Only...
Page 91: Only For Training And Service Purposes
Change the U200 & U101 Earphone will work properly LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 92 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 92: Receiver Trouble
U201 U101 Figure 4.11.1 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 93 - LGE Internal Use Only...
Page 93: Only For Training And Service Purposes
Resolder/Change the receiver Properly? Receiver will work properly. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 94 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 94: Microphone Trouble
C201 U101 Figure 4.12.1 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 95 - LGE Internal Use Only...
Page 95: Only For Training And Service Purposes
C200, C201 Microphone will work properly. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 96: Sim Card Interface Trouble
PIN 3 Figure 4.13.1 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 97 - LGE Internal Use Only...
Page 97: Only For Training And Service Purposes
Properly? SIM card is properly working SIM card is properly working. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 98: Key Backlight Trouble
Q200 R221 R222 Figure 4.14.1 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only...
Page 99: Only For Training And Service Purposes
R510 Q500 R508 Figure 4.14-2 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 100 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 100: Only For Training And Service Purposes
Replace or resolder Backlight will work properly. component LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only...
Page 101: Micro Sd Trouble
R223 C230 Figure 4.15.1 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 102 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 102 Replace Micro SD Card Micro SD Card will work properly LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 103 -...
Page 103: Bluetooth Trouble
L406 C416 Figure 4.16.1 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 104 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 104 U101 BT will work properly LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 105 - LGE Internal Use Only...
Page 105: Fm Radio Trouble
ANT200 U205 U207 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 106 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 106 A condition is good? FM_radio will work properly LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 107 - LGE Internal Use Only...
Page 107: Slide On/Off Trouble
TEST POINT U202 Figure 4.18.1 CIRCUIT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 108 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 108 = 0V Slide on/off will work properly LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 109 - LGE Internal Use Only...
Page 109: Download
If you are going to use battery, the voltage of the battery should be over 3.7V for stable power supplying during S/W download. Figure 5-1. S/W download & upgrade setup LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 110 - Copyright ©...
Page 110: Download Program User Guide
2. “MultiGSM.exe” execution file execute GB230 GB230 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only...
Page 111: Multi-Download Program Setting (Model-Base)
■ Setting Completed GB230 GB230 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 112 - Copyright © 2009 LG Electronics. Inc. All right reserved.
Page 112 ■ Stand-by Condition: “Wait phone connecting” confirm -> Phone connection GB230 GB230 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 113 -...
Page 113: Block Diagram
＊＃＃＃ LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 114 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 114: Circuit Diagram
I2C_SCL X101 VB100 L101 32.768KHz VIB_P 18nH VIB_N C136 C137 C139 C138 CHECK NET_NAME OJ100 OJ101 OJ102 OJ103 Copyright © 2009 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...
Page 115 U206 uSD_CMD uSD_D3 VOUT uSD_D2 FM_LNA_EN C246 C247 C248 C249 C250 C251 C252 C243 C244 C245 NL17SZ04XV5T2G 2.2u LGE Internal Use Only - 116 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116 SHARP R313 KB309 KB310 KB311 R312 150K KP_IN4 U303 FSA4157L6X HOOK_DET KP_OUT0 KP_IN0 KP_OUT2 KP_OUT1 C326 0.1u KP_OUT2 Copyright © 2009 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...
Page 117 HIGH GSM850_RX HIGH HIGH PCS_RX HIGH HIGH HIGH DCS_RX HIGH HIGH LB_TX HIGH HIGH HB_TX HIGH HIGH HIGH LGE Internal Use Only - 118 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 EDLH0013403 LEWWS47PAZ LD500 LD501 R507 R508 VA501 VA502 varistor varistor Q500 R509 KEY_BL_EN KTC4075E 1.2K EQBN0007601 R510 100K Copyright © 2009 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only Only for training and service purposes...
Page 119 F_DATA06 F_nLCD_WR F_DATA07 F_DATA07 F_nLCD_RS nLCD_RESET F_nLCD_CS F_nLCD_CS 53 54 nLCD_RESET F_nLCD_RS F_nLCD_WR F_VSYNCOUT MLED MLED1 MLED2 MLED3 LGE Internal Use Only - 120 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 120 7. CIRCUIT DIAGRAM SUB KEY MATRIX SIDEKEY_PAD CN501 VOLUME_UP VOLUME_DOWN Copyright © 2009 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only Only for training and service purposes...
Page 122: Bga Pin Map
▪ Ball Diagram (Top View), PMB8810(A-GOLDRADIO+) : not in use LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved. - 123 -...
Page 123 8.2 BGA IC pin check (U100) ▪ Ball Diagram (Top View), PF38F5060M0Y3DF : not in use LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 124 - Copyright ©...
Page 124: Pcb Layout
CN301(Main FPCB Connector) - No LCD Display - No Speaker & Receiver LD200 & LD201 - No Key Backlight Copyright © 2009 LG Electronics. Inc. All right reserved. - 125 - LGE Internal Use Only Only for training and service purposes...
Page 125 -No booting SW400(mobile switch) - Can’t make a call -Tx Low power - Not good BER - No Service LGE Internal Use Only - 126 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 127 - No LCD Display - No Speaker & Receiver - No key function Q500 - No Key Backlight LGE Internal Use Only - 128 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128: Engineering Mode
[6-9] FM Radio [3-7] MemAllUse [6-9-1] FM Radio Test [3-8] MemDetUse [6-10] Touchpad Test [3-9] MemDump [3-10] Change Frequency Band Copyright © 2009 LG Electronics. Inc. All right reserved. - 129 - LGE Internal Use Only Only for training and service purposes...
Page 129: Stand Alone Test
2. Check PC Bau Rate 3. Confirm EEPROM & Delta file prefix name 4. Click “Update Info” for communicating Phone and Test-Program LGE Internal Use Only - 130 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130 5. For the purpose of the Standalone Test, Change the Phone to “ptest mode” and then Click the “Reset” bar. 6. Select “Non signaling” in the Quick Bar menu. Then Standalone Test setup is finished. Copyright © 2009 LG Electronics. Inc. All right reserved. - 131 -...
Page 131: Tx Test
3. Select “Tx” in the RF mode menu and “PCL” in the PA Level menu. 4. Finally, Click “Write All” bar and try the efficiency test of Phone. LGE Internal Use Only - 132 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132: Rx Test
4. The Phone must be changed “normal mode” after finishing Test. 5. Change the Phone to “normal mode” and then Click the “Reset” bar. ① ③ ② Copyright © 2009 LG Electronics. Inc. All right reserved. - 133 - LGE Internal Use Only Only for training and service purposes...
Page 134: Auto Calibration
GuiTk115d.dll ShieldBox_DllD.dll HK_40 Model KF300d Spec_GB230_001 Setup_Cal_Parameter_001 script_001 PwrSupply_Cmd Procedure_GB230_001 Ezlooks AutoSetup_GB230_001 xmm2130_eep008.cfg LG_RfTest_E5515C_122.dll LG_RfCal_InfiKE000Ag_177.dll dwdio.dll LG_UI_Ad6500_004.dll Multi_HK Copyright © 2009 LG Electronics. Inc. All right reserved. - 135 - LGE Internal Use Only Only for training and service purposes...
Page 135: Description Of Basic File
-. Setup_Cal_Parameter_001.xml : Calibration Definition Module. 6. UI -. LG_UI_Ad6500_002.dll : ADI Model UI Dll. 7. Multi_HK -. Registration File For System Setting. LGE Internal Use Only - 136 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136: Procedure
Connect as Fig 11-2 (RS232 serial cable is connected between COM port of PC, in general.) . Run HK_40exe to start calibration. Click “ Logic Operation” of “SETTING” menu bar Copyright © 2009 LG Electronics. Inc. All right reserved. - 137 - LGE Internal Use Only...
Page 137 10. Select “ LOGIC MODE” that you want Logic mode: 1-> Calibration only 2-> Auto test only 3-> Cal & Auto LGE Internal Use Only - 138 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 138 12. AUTO CALIBRATION 11. Select the model name “GB230” Model name Start button 12. Click “start” button Copyright © 2009 LG Electronics. Inc. All right reserved. - 139 - LGE Internal Use Only Only for training and service purposes...
Page 139: Agc
Channel PCS 1900 Frequency 1850.2 MHz 1880 MHz 1909.8 MHz Max power 29.5 dBm 29.5 dBm 29.5 dBm LGE Internal Use Only - 140 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140: Exploded View & Replacement Part List
13. EXPLODED VIEW & REPLACEMENT PART LIST 13.1 EXPLODED VIEW 44 45 43 27 26 Copyright © 2009 LG Electronics. Inc. All right reserved. - 141 - LGE Internal Use Only Only for training and service purposes...
Page 142: Replacement Parts
LABEL,A/S MLAB0001102 C2000 USASV DIA 4.0 WHITE WITHOUT MPBT00 PAD,CAMERA MPBT0068101 COMPLEX, (empty), , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 143 - LGE Internal Use Only Only for training and service purposes...
Page 143 COMPLEX, (empty), , , , , COLOR WITHOUT MPBN00 PAD,SPEAKER MPBN0065801 COMPLEX, (empty), , , , , COLOR LGE Internal Use Only - 144 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144 MTAC00 TAPE,SHIELD MTAC0085301 COMPLEX, (empty), , , , , G, 16 COLOR WITHOUT ADCA00 DOME ASSY,METAL ADCA0092801 GB230 SLIDE DOME ASSY,4PI DR DOME 11EA, LGF COLOR WITHOUT MTAC00 TAPE,SHIELD MTAC0085201 COMPLEX, (empty), , , , , COLOR WITHOUT MTAC01 TAPE,SHIELD...
Page 145 13. EXPLODED VIEW & REPLACEMENT PART LIST Location Level Description Part Number Spec Color Remark GB230 MAIN METAL DOME ASSY, 5PI DR DOME WITHOUT ADCA00 DOME ASSY,METAL ADCA0092901 12EA, LGF COLOR WITHOUT MLAZ00 LABEL MLAZ0038301 PID Label 4 Array COLOR...
Page 146: Main Component
BOTTOM CONNECTOR,BOARD TO CN600 ENBY0022401 50 PIN,0.4 mm,ETC , ,H=0.9, Header BOARD SPCY PCB,FLEXIBLE SPCY0162901 POLYI ,0.2 mm,DOUBLE ,GB230 FLCD ,; , , , , , , , , , SAEE00 PCB ASSY,KEYPAD,SMT SAEE0033201 PCB ASSY,KEYPAD,SMT SAEC00 SAEC0032101 BOTTOM C501...
Page 147 ,20mA ,1200~1400mcd , ,126mW ,[empty] ,[empty] ,2P SPEY00 PCB,KEYPAD SPEY0060701 FR-4 ,0.5 mm,DOUBLE ,GB230 KEYPAD ,; , , , , , , , , , SUSY00 SPEAKER SUSY0027203 ASSY ,8 ohm,90 dB,1812 mm,10mm ,; , , , , , , ,WIRE Main ,2.0 ,176*220 ,37.5*53.4*1.9 ,262K ,TFT ,TM...
Page 148 ECCH0000117 27 pF,50V,J,NP0,TC,1005,R/TP C139 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C200 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
Page 149 ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C231 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C233 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP LGE Internal Use Only - 150 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 ECCH0000179 22 nF,16V ,K ,X5R ,HD ,1005 ,R/TP C323 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
Page 151 ENSY0022201 24 ,ETC , , mm,7*7, 1.3M (1/5") Socket Type D100 DIODE,SWITCHING EDSY0017301 VSM ,15 V,100 mA,R/TP ,PB-FREE LGE Internal Use Only - 152 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 3.3 nH,S ,1005 ,R/TP ,chip L403 INDUCTOR,CHIP ELCH0003826 3.3 nH,S ,1005 ,R/TP ,chip L404 INDUCTOR,CHIP ELCH0003826 3.3 nH,S ,1005 ,R/TP ,chip Copyright © 2009 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
Page 153 43K ohm,1/16W,J,1005,R/TP R207 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP R208 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 154 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 22 ohm,1/16W ,J ,1005 ,R/TP R303 RES,CHIP,MAKER ERHZ0000490 51 ohm,1/16W ,J ,1005 ,R/TP R304 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...
Page 155 EUSY0144602 SOT-553 ,5 PIN,R/TP ,INVERTER PLP1010 ,4 ,R/TP ,150mA, 3.0V Single LDO ,; ,IC,LDO U207 EUSY0373901 Voltage Regulator LGE Internal Use Only - 156 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 Pb-free WHITE ,ETC ,R/TP ,3.8*1.2*0.6T ,; ,[empty] ,2.9~3.2V LD200 DIODE,LED,CHIP EDLH0013403 ,20mA ,1200~1400mcd , ,126mW ,[empty] ,[empty] ,2P Copyright © 2009 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...
Page 157 R217 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP SPFY00 PCB,MAIN SPFY0192901 FR-4 ,0.8 mm,BUILD-UP 6 ,GB230 MAIN ,; , , , , , , , , , U202 EUSY0362601 SSON004 ,4 ,R/TP ,Hall IC ,; ,IC,CMOS VA201 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005...
Page 158: Accessory
100-240V ,5060 Hz,5.6 V,.4 A,CE ,AC-DC Adaptor ,; ADAPTOR,AC-DC SSAD0028203 ,85Vac~264Vac ,5.6V +/-0.8V ,400mA ,5060 , ,WALL 2P ,I/O CONNECTOR , Copyright © 2009 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only Only for training and service purposes...

LG GB230 Service Manual

1 Introduction

2 System Specification

3 Technical Brief

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 BGA Pin Map

9 Pcb Layout

10 Engineering Mode

11 Stand Alone Test

12 Auto Calibration

13 Exploded View & Replacement Part List

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