Page 1 Internal Use Only Service Manual KU380 Date: December, 2007 / Issue 1.0...
Page 2: Table Of Contents
4.12 SIM Detect Troubleshooting ....100 12.3 Accessory ..........188 4.13 Camera Troubleshooting .......102 4.14 Keypad Backlight Troubleshooting ..105 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
Page 4: Introduction
The user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 5 -...
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. - 6 - Only for training and service purposes...
Page 6: Performance
LED Indicator Receiver Earphone Jack Yes (18 pin) Connectivity Bluetooth, USB External Memory Yes(Micro SD) I/O Connect 18 Pin Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...
Page 7: Usable Environment
* In case of DCS : [A] -> 1710, [B] -> 1785 * In case of PCS : [A] -> 1850, [B] -> 1910 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...
Page 8: Only For Training And Service Purposes
** In case of DCS : [A] -> 1710, [B] -> 1785 * In case of PCS : [A] -> 1850, [B] -> 1910 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 -...
Page 9: Only For Training And Service Purposes
±4 ±3 ±4 ±5 ±4 ±5 ±4 ±5 ±4 ±5 ±5 ±5 Burst timing Mask IN Mask IN LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...
Page 10: Only For Training And Service Purposes
Power setting in uplink compressed ±3dB(after 14slots transmission gap) Occupied Bandwidth(OBW) 5MHz(99%) -35-15*(∆f-2.5)dBc@∆f=2.5~3.5MHz,30k -35-1*(∆f-3.5)dBc@∆f=3.5~7.5MHz,1M Spectrum emission Mask -39-10*(∆f-7.5)dBc@∆f=7.5~8.5MHz,1M -49dBc@∆f=8.5~12.5MHz,1M Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - Only for training and service purposes...
Page 11: Only For Training And Service Purposes
Wanted Signal :-101dBm Wanted Signal :-101dBm (TCH/FS Class II, RBER) Unwanted : Depend on Frequency Unwanted : Depend on Frequency LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...
Page 12: Only For Training And Service Purposes
-46dBm/3.84MHz@20MHz UE@+20dBm output power(Class3) -57dBm@f=9KHz~1GHz, 100K BW Spurious Emissions -47dBm@f=1~12.5GHz, 1M BW -60dBm@f=1920MHz~1980MHz, 3.84M BW -60dBm@f=2110MHz~2170MHz, 3.84M BW Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...
Page 13: Current Consumption
-106 ± 2 dBm -101 ± 2 dBm BAR 1 → 0 -111 ± 2 dBm -106 ± 2 dBm LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...
Page 14: Battery Bar
3.58 ± 0.05V (Stand-by) / 3.58 ± 0.05V (Talk) Low Voltage, Warning message+ Blinking [Interval : 3min(Stand-by) / 1min(Talk)] 3.20 ± 0.05V Power Off Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes...
Page 15: Sound Pressure Level
• Full charging indication current (charging icon stop current) : 100 mA • Cut-off voltage : 3.20 V LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...
Page 16: Technical Brief
3. TECHNICAL BRIEF 3. TECHNICAL BRIEF 3.1 General Description The KU380 supports UMTS-2100, GSM-900, DCS-1800, and PCS-1900 based GSM/GPRS/UMTS. All receivers and the UMTS transmitter use the radioOne Zero-IF architecture to eliminate intermediate frequencies, directly converting signals between RF and baseband. The quad-band GSM transmitters use a baseband-to-IF upconversion followed by an offset phase-locked loop that translates the GMSK- modulated signal to RF.
Page 17: Only For Training And Service Purposes
3. TECHNICAL BRIEF A generic, high-level functional block diagram of KU380 is shown in Figure 1-1. One antenna collects base station forward link signals and radiates handset reverse link signals. The antenna connects with receive and transmit paths through a FEM(Front End Module).
Page 18: Gsm Mode
DCS and PCS). The antenna switch module allows multiple operating bands and modes to share the same antenna. In KU380, a common antenna connects to one of six paths: 1) UMTS-2100 Rx/Tx, 2) GSM-900 Rx, 3) GSM-900 Tx, 4) DCS-1800 Rx, and 5) DCS-1800 Tx, PCS- 1900 Tx(High Band Tx’s share the same path), 6) PCS-1900 Rx.
Page 19: Only For Training And Service Purposes
DC offset corrections. The filter outputs are buffered and passed on to the MSM6245 IC for further processing (an interface shared with the RFR6275 UMTS receiver outputs). LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...
Page 20: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Fig 1.2] RTR6275 RX feature Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 - Only for training and service purposes...
Page 21: Only For Training And Service Purposes
PA and appear in the GSM Rx band LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...
Page 22: Umts Mode
F The RTR6275 IC is able to support UMTS 2100/1900 and UMTS 850 mode transmitting. This design guideline shows only UMTS 2100 applications. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 -...
Page 23: Only For Training And Service Purposes
3. TECHNICAL BRIEF WCDMA_2100_TX WCDMA_2100_RX [Figure 1.4] RTR6275 IC functional block diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...
Page 24: Lo Generation And Distribution Circuits
PA_ON CP0402A1950DNTR VREG_TCXO_2.85V PWR_DET R122 C162 R123 R124 100p L131 2 2nH [Figure 1.5] WCDMA PAM, Duplexer, Coupler Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...
Page 25: Only For Training And Service Purposes
The active connection is MSM-selected by three control lines (GPIO[9], GPIO[10]). Two GPIO are programmed to be ANT_SEL0_N, ANT_SEL1_N) respectively. [Table 1.2] Front End Module control logic LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...
Page 26: Only For Training And Service Purposes
- Vibration motor driver programmable from 1.2 to 3.1V in 100 mV increments - Speaker driver with programmable gain, turn-on time, and muting; differential operation (drives external |8 Ω speakers with volume controlled 500 mW) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 -...
Page 27: Only For Training And Service Purposes
• Highly integrated functionality in a small package - 84-pin BCCS with a large center slug for electrical ground, mechanical stability, and thermal relief. [Figure 1.6] MSM6245 Interface LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...
Page 28: Only For Training And Service Purposes
3. TECHNICAL BRIEF [Figure1.7] PM6650 Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...
Page 29: Only For Training And Service Purposes
GSM_OUT TX_EN EFCH897MTDB1 R119 100ohm GSM_PA_BAND C143 C144 GSM_PA_BAND MODE DCS/PCS HIGH [Figure 1. 8] GSM PAM Schematic LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
Page 30: Only For Training And Service Purposes
• Insertion loss . this component is also in the receive and transmit paths ; In the KU380 typical losses : UMTS2100_ Tx = 1.2 dB, UMTS2100_ Rx = 1.4 dB • Out-of-band rejection or attenuation. the duplexer provides input selectivity for the receiver, output filtering for the transmitter, and isolation between the two.
Page 31: Only For Training And Service Purposes
❏ Other frequencies of particular concern . bands known to include other wireless transmitters that may deliver significant power levels to the receiver input. Table 1.3 WCDMA Rx SAW Filter Specification LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
Page 32: Only For Training And Service Purposes
RF module and Antenna. Figure1.5.12-1 shows the bluetooth system architecture in the KU380. MSM6245 Bluetooth baseband [Figure1.9] Bluetooth system architecture Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...
Page 33: Digital Baseband(Dbb/Msm6245)
■ Advanced 14 x 14 mm, 0.5 mm pitch, 409-pin lead-free CSP packaging technology ■ SD/SDIO hardware support LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...
Page 34: Only For Training And Service Purposes
WCDMA2100 Tx NAND, SDRAM Duplexer WCDMA FLASH WCDMA2100 Rx WCDMA KEYPAD RX SAW AntSW Logic Figure. Simplified Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...
Page 35: Only For Training And Service Purposes
MP3, AAC, Rx ADC EVRC, QCELP AMR, CMX, MIDI Tx DAC USIM PM6650 Figure. Simplified Block Diagram of MSM6245 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...
Page 36: Subsystem(Msm6245)
■ PS data rate - 384 kbps DL / 384 kbps UL ■ CS data rate - 64 kbps DL / 64 kbps UL ■ AMR (all rates) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 -...
Page 37: Only For Training And Service Purposes
■ PBCCH support ■ 1 phase/2 phase access procedures ■ Link adaptation and IR ■ NACC, extended UL TBF. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...
Page 38: Only For Training And Service Purposes
- 2 chip selects supported for NAND Flash ❏ Boot from NAND ❏ Low-power SDRAM (LP-SDRAM) interface ■ Internal watchdog and sleep timers Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 - Only for training and service purposes...
Page 39: Only For Training And Service Purposes
■ A two-way mobile video conferencing solution that delivers 15 fps @ QCIF, 64kbps ■ Video codecs supported: MPEG-4 and H.263 ■ Audio codecs supported: AMR-NB. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
Page 40: Only For Training And Service Purposes
■ Scalable Vector Graphics (SVG- Tiny 1.1 + SVG Tiny 1.2) ■ MLZ decoder ■ Integrated PNG/SAF A.T. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 - Only for training and service purposes...
Page 42: Only For Training And Service Purposes
The MSM6245 device meets the intent of the ANSI/IEEE 1149.1A-1993 feature list. The JTAG interface can be used to test digital interconnects between devices within the mobile station during manufacture. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 -...
Page 43: Only For Training And Service Purposes
The USB controller acts as a USB peripheral communicating with the USB host. MSM6245 supports the 3-wire functionality. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...
Page 44: Power Block
MSM device controls and statuses the PM6650 IC using Single Serial Bus Interface (SSBI) supplemented by an Interrupt Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 -...
Page 45: Only For Training And Service Purposes
3. TECHNICAL BRIEF Figure 1-1. PM6650 Functional Block Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
Page 46: Only For Training And Service Purposes
4.2V~3.83V 3.82V~3.73V 2~0 (%) 44~20 (%) 19~3 (%) 100~70 (%) 69~45 (%) KU380 Battery Bar Display(Stand By Condition) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...
Page 47: Only For Training And Service Purposes
(VBAT). Trickle charging can be used for lithium-ion and nickelbased batteries, with its performance specified below (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
Page 48: Only For Training And Service Purposes
• Low battery POP UP : Idle - 3.58V, Dedicated(GSM/WCDMA) - 3.58V • Low battery alarm interval : Idle - 3 min, Dedicated - 1min • Cut-off voltage : 3.20V Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 -...
Page 49: External Memory Interface
FLASH TY9000A800JOGG TOSHIBA 50 ns 30 ns SDRAM TY9000A800JOGG TOSHIBA 8 ns 8 ns Table#1. External memory interface LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...
Page 50: Only For Training And Service Purposes
NAND_WP* CAS* MSM6245 512Mb (126MB) RAS* NAND_ALE CLK_EN NAND_READY DATA[15:0] DQM[3:0] Figure. Simplified Block Diagram of Memory Interface Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
Page 51: H/W Sub System
BT_CLK BT_SBST_GPIO24 BT_SBST BT_SBCK_GPIO23 BT_SBCK BT_SBDT_GPIO22 BT_SBDT BT_TX_RX_N_GPIO21 BT_TX_RX_N BT_DATA_GPIO20 BT_DATA Figure. Schematic of RF Interface of MSM6245 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...
Page 52: Only For Training And Service Purposes
• GSM_PA_BAND : GSM/DCS-PCS Band Selection of Power Amp • GSM_PA_RAMP : Power Amp Gain Control of APC_IC • GSM_PA_EN : Power Amp Gain Control Enable of APC_IC Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 -...
Page 53: Only For Training And Service Purposes
UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_96 UART_RXD Data_Rx GPIO_95 UART_TXD Data_Tx Table. UART Interface LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...
Page 54: Only For Training And Service Purposes
USB_D_M GP1_DRV_N(MPP7) R309 2.2K C331 4.7u 1608 PMIC MicroSD Figure. Schematic of USB block(MSM6245 Side & PM6650 Side) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...
Page 55: Only For Training And Service Purposes
Ear jack Detection for TTY HKADC4 PCB_Rev_ADC PCB Version Check HKADC5 Battery_THERM Battery Temperature Check Table. HKADC channel table LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...
Page 56: Only For Training And Service Purposes
KEY_ROW(3) BACK KEY_ROW(3) KEY_ROW(4) HOT400 HOT401 HOT4 HOT3 KEY_COL(3) KEY_ROW(4) KEY_COL(4) KEY_COL(0) KEY_COL(1) KEY_COL(2) Figure. Main/Sub Keypad Circuit Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
Page 57: Only For Training And Service Purposes
3. TECHNICAL BRIEF PM_ON_SW_N EVL14K02200 Figure. END Keypad Circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...
Page 58: Only For Training And Service Purposes
3. TECHNICAL BRIEF 3.10.5 Camera Interface KU380 Installed a 1.3M Pixel and 0.3Mega Camera. Below figure shows the camera socket type connector and camera I/F signal. CAMERA MEGA CAMERA CONNECTOR R412 CAM_DATA_OUT(0) PCLK CAM_PCLK CAM_DATA_OUT(1) VSYNC CAM_VSYNC_OUT CAM_DATA_OUT(2) HSYNC CAM_HSYNC_OUT...
Page 59: Only For Training And Service Purposes
CAM_DATA_OUT(0) Data CAM_DATA_OUT(1) Data CAM_DATA_OUT(2) Data Table. Interface between MEGA Camera Module and MAIN PCB (in camera module) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...
Page 60: Only For Training And Service Purposes
Camera I/O Power VREG_CAM_DVDD_1.8V VREG_AVDD_2.8V Camera I/O Power Table. Interface between VGA Camera Module and MAIN PCB (in camera module) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...
Page 61: Only For Training And Service Purposes
- Display mode(Main LCD) : Normally White, Transmissive TN mode 265K colors. - LCD Driver IC: HX8340 (Himax). - 16 bit CPU interface Parallel LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
Page 62 EBI2_DATA(14) EBI2_DATA(15) LCD_MAKER_ID VREG_LCD_2.8V WLED_1 WLED_2 WLED_3 WLED_PWR LCD CONNECTOR Figure. Interface between LCD Module and MAIN PCB. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...
Page 63: Only For Training And Service Purposes
The microphone interface consists of two differential microphone inputs, one differential auxiliary input and a two-stage audio amplifier. Figure. Audio Interface Detailed Diagram(MSM6245) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...
Page 64: Only For Training And Service Purposes
MIC2P NCS2200SQ2T2G C401 R406 100ohm HPH_L C402 R407 100ohm HPH_R USB_D+ USB_D- EAR_SENSE_N Figure . Audio part schematics Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...
Page 65: Only For Training And Service Purposes
5.6K LINE_N C428 0.1u R420 R421 5.6K LINE_P OUTA SPK+ C432 R422 C429 Figure . Audio part schematics LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
Page 66: Only For Training And Service Purposes
Dual Analog Switch Speaker/Receiver EMS1810TFR1P Speaker/Receiver MIC400 SP0204LE5-PB SMD microphone Ear jack RMBLGG080STSB Ear jack Table. Audio main component list Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
Page 67: Main Features
- MP3/AAC decoder and play - MPEG4 encoder/decoder and play/save - JPEG en/decoder - Supports Bluetooth, USB - 900 mAh (Li-Ion) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...
Page 68: Only For Training And Service Purposes
3. TECHNICAL BRIEF 2. KU380 Main Component Power Logic Bluetooth Main board (Bottom) Main board (Top) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 69 - Only for training and service purposes...
Page 69: Only For Training And Service Purposes
WCDMA PAM Front End module U101 GSM PAM VCTCXO X100 M100 BT module FL100 GSM SAW U100 RTR6275 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...
Page 70: Only For Training And Service Purposes
Reference Description Reference Description MMI connector BAT300 Backup Battery CN401 (18pin) U302 1.3M Cam. LDO U402 Audio AMP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...
Page 71: Only For Training And Service Purposes
MSM6245_A U201 U300 PMIC U301 Memory MCP J300 U-SIM socket Main To LCD CN400 S300 T-FLASH socket Connector LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...
Page 72: Trouble Shooting
4. TROUBLE SHOOTING 4. TROUBLE SHOOTING 4.1 RF Component BOTTOM SIDE Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...
Page 74: Signal Path_Umts Rf
4.2 SIGNAL PATH_UMTS RF Common Tx/Rx UMTX 2100 Tx/Rx UMTX 2100 Tx UMTX 2100 Rx Tx I/Q RX I/Q Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...
Page 75: Signal Path_Gsm Rf
4.3 SIGNAL PATH_GSM RF Common Tx/Rx GSM900 Tx DCS/PCS Tx EGSM900 RX PCS Rx DCS RX Tx I/Q RX I/Q LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...
Page 76: Checking Vc-Tcxo Block
100p C176 TCXO_PM 1000p C177 1000p C178 0.01u RTR6275_TCXO TCXO_BT U105 TC7SH04FU Test Point of the VC-TCXO Block Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...
Page 77: Only For Training And Service Purposes
4. TROUBLE SHOOTING Check C312 of PMIC (U300) Check R 212 of MSM (U200) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...
Page 78: Checking Front-End Module Block
GSM900_TX GND10 GSM18001900_TX Schematic of the Front-End Module Block ANT_SEL0 ANT_SEL1 Test Point of the Front-End Module Block Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...
Page 79: Only For Training And Service Purposes
4. TROUBLE SHOOTING Logic Table of the FEM TP1 VREG_RF_SMPS LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...
Page 80: Checking Umts Block
C157 12nH 15nH C158 TR100 20dB KRX102U 100p U103 PA_ON CP0402A1950DNTR VREG_TCXO_2.85V PWR_DET R122 C162 R123 R124 100p Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...
Page 81: Only For Training And Service Purposes
4. TROUBLE SHOOTING U103 FL102 U100 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...
Page 82: Only For Training And Service Purposes
6. PA_R0 : Control signals that step the active PA mode and bias +VPWR PWR_DET PA_R 0 PA_ON VREG_TCXO_2.85 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...
Page 83: Only For Training And Service Purposes
U103 2.2p 4.7nH 10nH PA_ON CP0402A1950DNTR VREG_TCXO_2.85V PWR_DET R122 C162 R123 R124 100p L131 C166 2.2nH L132 2.7nH LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
Page 86: Only For Training And Service Purposes
GSM18001900_TX L116 L115 8.2nH 18nH C122 L117 8.2p 1.5nH C133 C134 DCS_PCS_IN DCS_PCS_OUT U102 GSM_IN SKY77329 GSM_OUT TX_EN Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...
Page 87: Only For Training And Service Purposes
4. TROUBLE SHOOTING 4.7.3 Checking RF Tx level LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
Page 88: Only For Training And Service Purposes
SKY77329 R118 100ohm GSM_PA_EN GSM_OUT TX_EN R119 100ohm GSM_PA_BAND C143 C144 GSM_PA_BAND HIGH Schematic of GSM PAM Block Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
Page 89: Only For Training And Service Purposes
GSM900_TX L110 GND10 GSM18001900_TX 2.2nH L111 12nH C120 EGSM L112 12nH L113 12nH Schematic of GSM900/DCS/PCS Rx Block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...
Page 91: Checking Bluetooth Block
SYNC_DET_TX_EN BT_TX_RX_N R125 VREG_MSMP_2.7V VDD_MSM RX_BB_TX_BB BT_DATA VREG_BT_2.85V VDD_BAT XTAL_IN TCXO_BT 1000p C167 Schematic of the Bluetooth Block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
Page 92: Only For Training And Service Purposes
Signals exits? nge the X100 Is clock ok? 19.2M Change the M100 Signals exits? Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...
Page 93: Power On Troubleshooting
VREG_MSMA_2.6V power up? Is clock ok? R306 : 19.2M Check the TXCO X300 : 32.768Khz Change the Main board LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...
Page 94: Only For Training And Service Purposes
4. TROUBLE SHOOTING VREG_MSME_18V VREG_MSMC_125V VREG_RF_SMPS X300 : 32.768Khz VREG_MSMA_2.6A R306 : 19.2Mhz [ KU380 Main PCB BOTTOM ] Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...
Page 95: Charger Troubleshooting
- Check the charger (TA or USB Cable) connector - Check the charging current Path - Check the battery LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...
Page 96: Only For Training And Service Purposes
5.1V (or 5.0V)? Is it charging properly After turning on U304? Change the board [ Charger Troubleshooting Flow ] Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
Page 97: Only For Training And Service Purposes
4. TROUBLE SHOOTING U304 [ Charging part ( Main PCB) ] LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...
Page 98: Usb Troubleshooting
4. TROUBLE SHOOTING 4.11 USB Troubleshooting USB Initial sequence of KU380 is : USB connected to KU380 power on → USB_VBUS(U304, pin #2) go to 5V → USB_D+ go to 3.3V → USB_DAT is triggered → USB work. Start Power is on?
Page 99: Sim Detect Troubleshooting
Work well? VREG_UIM_2.85V is 2.85V? Check J300 USIM_P_CLK is run? Change SIM card Work well? Change the Main board LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...
Page 100: Only For Training And Service Purposes
J300 HSSC-8P-18 GND1 VREG_USIM_2.85V USIM_P_RST_N USIM_P_DATA USIM_P_CLK RSV2 RSV1 GND2 GND5 GND3 GND4 L303 56nH Figure. USIM part schematics Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...
Page 101: Camera Troubleshooting
2.8V? Check the CAM_MCLK Change the Main board Change the camera Camera is OK Change the Main board LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...
Page 102: Only For Training And Service Purposes
VREG_DVDD_1.5V is 2.8V? Change the Main board Check the CAM_MCLK Change the camera Camera is OK Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...
Page 103: Only For Training And Service Purposes
4. TROUBLE SHOOTING U302 C345 C346 C344 CAMERA LDO U302 RT9011-MGPQW +VPWR VOUT1 VREG_CAM_AVDD_2.8V CAM_LDO_EN VOUT2 VREG_CAM_DVDD_1.8V C344 C345 C346 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...
Page 104: Keypad Backlight Troubleshooting
Backlight LED ON? Change the Main boa rd +VPWR LD400 SSC-SWTS1007 R411 +VPWR 100ohm KYBD_BACKLIGHT Figure.Keypad backlight LED part Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...
Page 105: Main Lcd Troubleshooting
The LCD connector LCD display OK? Change the LCD module LCD display OK? Change the Main boa rd LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...
Page 106: Receiver Path
Change receiver L101, L102? The sine wave appears at Check the analog switch R413, R414? Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...
Page 107 SELECT_SPK&RCV U401 NLAS5223BMNR2G +VPWR SPK+ C415 SPK- SPK_RCV+ COM2 0.01u SPK_RCV- RCV_EN_N COM1 R413 RCV+ R414 RCV- REV_B LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...
Page 108: Headset Path
Can you hear the tone? Sine wave appears at Change the Headset R407/R406? Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...
Page 109 4. TROUBLE SHOOTING CN400 R406 C401 R407 C402 R403 CN400 HSEJ-18S04-25R C401 R406 100ohm C402 R407 100ohm REV_B FL405 NTS104B LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...
Page 110: Speaker Phone Path
Change the Audio Amp SPK+, SPK- ? The sine wave appears at Change speaker SPK_RCV-,SPK_RCV+? Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...
Page 111 +VPWR C427 0.1u R419 R418 5.6K LINE_N C428 0.1u R420 R421 5.6K LINE_P OUTA SPK+ C432 R422 C429 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...
Page 112: Main Microphone
Make sound to MIC Sine wave appears at Change the MIC C423/C424? Change the Main board Work well? Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...
Page 114: Headset Microphone
Change the headset or Sine wave appears at Main board and retry. C210/C211 ? Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...
Page 116: Vibrator
Operate the Vibrator Work well? Change vibrator or PM6650 TP100 +VPWR TP101 L100 56nH MOTOR_PWR- D100 RB521S-30 +VPWR MOTOR_PWR- Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...
Page 117: Download
LGMDP supports Windows 2000/XP where the LG (Ver 4.6 or later) USB modem driver is installed. Additionally, LGMDP allows multi downloading up to 9 handsets at the same time.
Page 118: Connecting To Pc
Then click on the Connect button. (The port number(COM7) shall be different from that of the port number in the snapshot.) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 119 PC to the handset, a progressive bar (Red box) indicating the degree of transmission of data is displayed. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...
Page 120 3) NV Backup/Restore: NV Backup/Restore always have to be done, and it is default selected option. Backup the NV data and restore the backed up NV data automatically. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 121 6) Clear: Clearing all directory paths of images in the dialog. 7) Start: Starting downloading the selected individual image. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...
Page 122 (The folder name shall be different from that of the folder name in the snapshot. The folder name indicates the path where the image files are located.) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 123 (The file name shall be different from that of the file name in the snapshot.) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...
Page 124 NV file to be downloaded on the handset. To enable this simply check the box or select the NV file from the LGMDP installation directory by clicking on the Browse… button. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
Page 125 Click on the No button if this is notthe setting you are downloading for. Otherwise click on the Yes button to continue downloading selected image file with options. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
Page 126 • Erasing the existing directories and files before the Module image is downloaded. • Downloading the AMSS modem image Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 127 - Only for training and service purposes...
Page 127 • Rebooting the handset and re-establishing the connection • Erasing the existing directories and files before downloading the selected Media image LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
Page 128 • Downloading Media image in progress • Downloading Module image in progress • Downloading process has completed successfully Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 129 - Only for training and service purposes...
Page 129 USB connectivity and check where the COM has been installed . Select Device Manager from the Tools of the file menu. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
Page 130: Troubleshooting Download Errors
(AMSS modem, Media, and Module images can not be running in this mode.) • The below dialog shows parameters of Select Port when phone is booted in Emergency mode. Click on the Connect button to continue. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 -...
Page 131 The selected image will be downloaded to the handset from the path directory in the PC. After downloading images successfully, it will boot to normal mode. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 132 - Only for training and service purposes...
Page 132 5. DOWNLOAD 5.3.2 NV Restore Error • Snapshot showing the NV Restore error. Next slide shows the remedial procedure to adopt. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 - Only for training and service purposes...
Page 133 • Connect the handset and Press the Connect button in the Select Port window. (Enable state in the window indicates that the Phone has been detected and is ready to download.) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...
Page 135: Caution
5) Erase EFS option will erase everything (media, module, nv items, and user data) in the EFS area. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 136 - Only for training and service purposes...
Page 136: Block Diagram
6. BLOCK DIAGRAM 6. BLOCK DIAGRAM 6.1 GSM & UMTS RF Block [Fig 2.1] KU380 RF Functional Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 - Only for training and service purposes...
Page 137 UMTS2100 TX SAW filter FL103 EFCH2140TDE1 UMTS2100 RX SAW flter FL102 ACMD-7602 UMTS2100 Duplexer [Table 2.1] RF Block Component LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...
Page 138: Interface Diagram
6. BLOCK DIAGRAM 6.2 Interface Diagram 6.2.1 RTR6275 & MSM6245 Interface Diagram [Fig 2.2] RTR6275 & MSM6245 Interface Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 - Only for training and service purposes...
Page 139: Memory Interface
6. BLOCK DIAGRAM 6.2.2 Memory Interface [Fig 2.3] Memory Interface Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...
Page 140 6. BLOCK DIAGRAM 6.2.3 USB,UART,SIM,JTAG Interface [Fig 2.4] USB, UART, SIM, JTAG Interface Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 141 - Only for training and service purposes...
Page 141 GSM_PA_RAMP Power Amp Gain Control UMTS, GSM900Tx/Rx, ANT_SEL 0,1 Ant Switch Module Mode Selection DCS Tx/Rx, PCS Tx/Rx LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 142 - Only for training and service purposes...
Page 142: Circuit Diagram
100K C175 100p C176 TCXO_PM 1000p C177 1000p C178 0.01u RTR6275_TCXO TCXO_BT U105 TC7SH04FU LG(42)-A-5505-10:01 LG Electronics Inc. Copyright © 2007 LG Electronics. Inc. All right reserved. - 143 - LGE Internal Use Only Only for training and service purposes...
Page 143 UART_TXD R214 2.2K TP214 VREG_CAM_AVDD_2.8V UART_RXD TP215 (Check CAM_DATA PINOUT !!!!) CAMERA 2.5G UART LG(42)-A-5505-10:01 LG Electronics Inc. LGE Internal Use Only - 144 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 144 Differential lines, route as equal length as possible !! --> ICHARGE , ICHARGEOUT OJ300 OJ301 OJ302 OJ303 LG(42)-A-5505-10:01 LG Electronics Inc. Copyright © 2007 LG Electronics. Inc. All right reserved. - 145 - LGE Internal Use Only Only for training and service purposes...
Page 145 R419 5.6K LINE_N C428 0.1u R420 R421 5.6K LINE_P OUTA SPK+ C432 R422 C429 LG(42)-A-5505-10:01 LG Electronics Inc. LGE Internal Use Only - 146 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 146 R130 100ohm LD105 R131 100ohm LD106 R132 100ohm LD107 R133 100ohm R105 KEY_BL_EN 4.7K LCD CONNECTOR KEY LED Copyright © 2007 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
Page 147 CAM_DATA_OUT(0) I2C_SCL CAM_PCLK VGA_CAM_RESET_N VREG_CAM_DVDD_1.8V CAM_MCLK SLIDE to FPCB Connector VREG_CAM_AVDD_2.8V VGA_CAM_EN CN101 FPCB to VGA Camera Connector LGE Internal Use Only - 148 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 148: Bga Ic Pin Map
8. BGA IC PIN MAP 8. BGA IC PIN MAP MSM6245 pin map Used Not used Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 149 - Only for training and service purposes...
Page 152: Pcb Layout
-No Tx call -Low Tx power F100,F101 Tx RF filter -No Tx call CON402 70pin connector -Main LCD doesn't display Copyright © 2007 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
Page 153 U300 PMIC -Power unable despite pressing power-on key U301 Memory -No Boot M100 Bucktooth chip -No BT service LGE Internal Use Only - 154 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158: Calibration & Rf Auto Test Program (Hot Kimchi)
Diag_NV6250_RevB.dll Diag_NV6275.dll Diag_NV.dll DLL_E5515CD.DLL DLL_PwrControlD.dll Dll_SerialATD.dll LG_CL_011.dll PwrSupply_Cmd.xml KU250 Debug Auto KU250 CalAuto KU250 : Directory : File Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 159 - Only for training and service purposes...
Page 159 SBCmd.xml ShieldBox_DllD.dll Model KU250 LG_RfTest_E5515C_211.dll AutoSetup_110.xml QMSL_MSVC6R.dll Cal_Setup_Test.xml Ezlooks.xml LG_RfCal_Q3G6280N_Polar_006.dll Procedure_KU250_103.xml script_auto_001.xml : Directory script_cal_003.xml : File Spec_3GPP_030.xml LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 160 - Only for training and service purposes...
Page 160 Result Auto KU380 KU380 CalAuto KU380 image result.bmp LG_UI_Ad6500_002.dll LG_UI_EmKU250_001.dll : Directory LG_UI_Qu6250_003.dll : File LG_UI_Qu6275_004.dll _New_HK_0808.reg Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 161 - Only for training and service purposes...
Page 161: How To Use Hot Kimchi
3. Select “LOGIC MODE” that you want - Logic Mode -> 1: Calibration Only 2: Auto Test Only 3: Calibration + Auto LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 162 - Only for training and service purposes...
Page 162 ➄ Click "Start" ➃ Select "KU380" * Procedure 4. Select the model name “KU380” 5. Click “Start” button Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 163 - Only for training and service purposes...
Page 163: Factory Test Mode
5) To set PA Range, select ON in R1 for High power mode or select ON in R0 for Low power mode. 6) Depending on a situation, Click “Tx On” or “Tx Off”. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 164 - Only for training and service purposes...
Page 164: Gsm Test Mode
5) Click “Tx On” or “Tx Off”. 6) SET RX mode. Click LNA Range, 0~4. 7) Click “RX ON” Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 165 - Only for training and service purposes...
Page 165 11. Factory Test Mode Channel Control Tx Power Control Rx Gain Control LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 166 - Only for training and service purposes...
Page 166: Exploded View & Replacement Part List
12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW 20 21 54 55 Copyright © 2007 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...
Page 168: Replacement Parts
ACGR00 ACGR0011201 Without Color ASSY,SLIDE(LOWER) MCJV00 COVER,SLIDE(LOWER) MCJV0011601 MOLD, PC LUPOY HI-1002ML, , , , , Without Color Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 169 - Only for training and service purposes...
Page 169 COMPLEX, (empty), 0.3, , , , Without Color MIDZ00 INSULATOR MIDZ0144701 COMPLEX, (empty), , , , , Black LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 170 - Only for training and service purposes...
Page 170 4:1 ,-5 dB,Pb-free_Chip_Bluetooth ,; ,SINGLE ,-5 ,50 ,4:1 2 V,0.5 mAh,CYLINDER ,Reflow type BB, Max T 1.67, BAT300 BATTERY,CELL,LITHIUM SBCL0001701 phi 4.8, Pb-Free Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 171 - Only for training and service purposes...
Page 171: Main Component
56 nH,J ,1005 ,R/TP ,chip inductor,PBFREE L102 INDUCTOR,CHIP ELCH0003825 56 nH,J ,1005 ,R/TP ,chip inductor,PBFREE R100 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 172 - Only for training and service purposes...
Page 172 14 V,10% ,SMD , VA108 VARISTOR SEVY0000702 14 V,10% ,SMD , VA109 VARISTOR SEVY0000702 14 V,10% ,SMD , Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 173 - Only for training and service purposes...
Page 173 ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP C137 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C138 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 174 - Only for training and service purposes...
Page 174 ECZH0001211 220 nF,10V ,Z ,Y5V ,HD ,1005 ,R/TP C203 CAP,CHIP,MAKER ECZH0001211 220 nF,10V ,Z ,Y5V ,HD ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 175 - Only for training and service purposes...
Page 175 ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C235 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C236 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C237 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 176 - Only for training and service purposes...
Page 176 ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C319 CAP,CERAMIC,CHIP ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 177 - Only for training and service purposes...
Page 177 ECCH0002002 47000 pF,10V ,K ,B ,HD ,1005 ,R/TP C404 CAP,CHIP,MAKER ECZH0004402 0.1 uF,16V ,Z ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 178 - Only for training and service purposes...
Page 178 SMD ,12 V,350 W,R/TP , D402 DIODE,TVS EDTY0008601 SOD-323 ,6 V,400 W,R/TP ,PB-FREE D403 DIODE,TVS EDTY0008601 SOD-323 ,6 V,400 W,R/TP ,PB-FREE Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 179 - Only for training and service purposes...
Page 179 5.1 ohm,1/16W ,J ,1005 ,R/TP R107 RES,CHIP ERHY0013101 2.7 ohm,1/16W ,J ,1005 ,R/TP R108 RES,CHIP ERHY0013101 2.7 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 180 - Only for training and service purposes...
Page 180 15 Kohm,1/16W ,J ,1005 ,R/TP R319 RES,CHIP,MAKER ERHZ0004301 0.1 ohm,1/4W ,F ,ETC ,R/TP R320 RES,CHIP,MAKER ERHZ0000487 470 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...
Page 181 Switch, PB-Free U402 EUSY0176401 MICRO8 ,8 PIN,R/TP ,1W AUDIO AMPLIFIER VA300 VARISTOR SEVY0004001 18 V, ,SMD ,3pF, 1005 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 182 - Only for training and service purposes...
Page 182 ECCH0000107 6 pF,50V,D,NP0,TC,1005,R/TP C110 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP C111 CAP,CHIP,MAKER ECZH0000816 12 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 183 - Only for training and service purposes...
Page 183 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C419 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP C420 CAP,CERAMIC,CHIP ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 184 - Only for training and service purposes...
Page 184 , ,[empty] ,[empty] ,[empty] R102 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP R103 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 185 - Only for training and service purposes...
Page 185 14 V,10% ,SMD , VA412 VARISTOR SEVY0000702 14 V,10% ,SMD , VA413 VARISTOR SEVY0000702 14 V,10% ,SMD , LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 186 - Only for training and service purposes...
Page 186 14 V,10% ,SMD , VA427 VARISTOR SEVY0000702 14 V,10% ,SMD , VA428 VARISTOR SEVY0000702 14 V,10% ,SMD , Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 187 - Only for training and service purposes...
Page 187: Accessory
100-240V ,5060 Hz,4.8 V,0.9 A,CE&CB ,18pin Plug ,; , , , ADAPTOR,AC-DC SSAD0021008 , , ,[empty] ,I/O CONNECTOR , LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 188 - Only for training and service purposes...
Page 188 Note...
Page 189 Note...

LG KU380 Service Manual

1 Introduction

2 Performance

3 Technical Brief

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 Bga IC Pin Map

9 Pcb Layout

10 Calibration & RF Auto Test Program (Hot Kimchi)

11 Factory Test Mode

12 Exploded View & Replacement Part List

Quick Links

Troubleshooting

Need help?

Questions and answers

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Summary of Contents for LG KU380

Table of Contents