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Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED LCD TV サービスマニュアル CHASSIS : LE22A MODEL : 26LS3500 26LS3500-JB CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67469508 (1205-REV00) Printed in Korea...
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MID_MAIN_1 2011.12.13 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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MID_MAIN_2 2011.12.19 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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MID_MAIN_3 2011.12.09 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. DDR ONE SIDE Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR LED driver THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. ALL_TN_LED_DRIVER Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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2011.12.12 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. MICOM Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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HDMI 4 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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IR / KEY 2011.07.21 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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USB3_HUB_WiFi 2011.08.09 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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LAN_VERTICAL 2011.06.29 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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2011.04.30 AMP_NEO ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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CI SLOT 2011.04.17 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. JAPAN_TUNER Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
LVDS_JAPAN_HD 2011.08.26 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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11.04.30 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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2011.08.09 MID_POWER ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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2011.06.15 ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR SMALL_POWER THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
2012 LED/LCD TV Engineering guide Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 1 / 97 Only for training and service purposes LGE Internal Use Only...
- Instruction of new sub ass’ys - How to use tool - Download 9. Adjust way of new features (widevine…) 10. Repair guide Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 2 / 97 Only for training and service purposes LGE Internal Use Only...
F. Exterior error Exterior defect First of all, Check whether there is SVC Bulletin in GCSC System for these model. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 3 / 97 Only for training and service purposes LGE Internal Use Only...
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Exchange LED driver Board (PSU) A-3/5 Other : PSU Module Exchange Module itself (1) A-4/5 Exchange Module itself (2) A-5/5 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 4 / 97 Only for training and service purposes LGE Internal Use Only...
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Always check & record S/W Version and White Replace Main Board Re-enter White Balance value Balance value before replacing the Main Board Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 5 / 97 Only for training and service purposes LGE Internal Use Only...
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No Video/ replace voltage? No audio ( 3.5V,12V,20V or MAIN B/D 24V…) Replace Power Board and repair parts Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 6 / 97 Only for training and service purposes LGE Internal Use Only...
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Contact with signal distributor Tuner soldering Picture? or broadcaster (Cable or Air) Normal Picture? Replace Main B/D Close Close Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 7 / 97 Only for training and service purposes LGE Internal Use Only...
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Normal (match with installed ANT) or broadcaster Picture? (Cable or Air) Normal Picture? Close Close Close Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 8 / 97 Only for training and service purposes LGE Internal Use Only...
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RGB/ Check external External device HDMI/DVI device and /Cable Replace Main B/D error cable normal Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 9 / 97 Only for training and service purposes LGE Internal Use Only...
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Main B/D HDMI/ External Input, Component, RGB and HDMI/DVI by connecting Jig, pattern Generator ,Set-top Box etc. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 10 / 97 Only for training and service purposes LGE Internal Use Only...
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※ Normal Replace Main B/D voltage? Close Normal Check ST-BY 3.5V voltage? ☞A18 Replace Power B/D Replace Power Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 11 / 97 Only for training and service purposes LGE Internal Use Only...
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Power off by unknown status except listed case "POWEROFF_ABNORMAL1" Power off by abnormal status except CPU trouble Abnormal "POWEROFF_CPUABNORMAL" Power off by CPU Abnormal Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 12 / 97 Only for training and service purposes LGE Internal Use Only...
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Speaker off Cancel OFF Replace Power Board and repair parts Check Speaker Disconnection Replace MAIN Board disconnection Replace Speaker Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 13 / 97 Only for training and service purposes LGE Internal Use Only...
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Connect and check Normal Check and fix other external device audio? external device Check and fix external device Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 14 / 97 Only for training and service purposes LGE Internal Use Only...
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If R/C operate, Normal Close Explain the customer operating? cause is interference from light in room. Replace R/C Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 15 / 97 Only for training and service purposes LGE Internal Use Only...
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Check and fix DVI, Optical Replace Main B/D Fix in external device/cable Recognition error accordance with technical information Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 16 / 97 Only for training and service purposes LGE Internal Use Only...
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“Part related to nose” in the Owner’s Manual. as shown in the solution manual (For models without any fix information, provide the description) Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 17 / 97 Only for training and service purposes LGE Internal Use Only...
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☞A28 Cabinet Replace cabinet damage Remote controller Replace remote controller damage Stand Replace stand dent Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 18 / 97 Only for training and service purposes LGE Internal Use Only...
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D. Function error_ No response in remote Remote controller operation checking method controller, key error D. VCOM Adjustment Sequence of the Vcom adjustment Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 19 / 97 Only for training and service purposes LGE Internal Use Only...
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3. After recording the R, G, B (GAIN, Cut) value of Color Temp (Cool/Medium/Warm), re- enter the value after replacing the MAIN BOARD. enter the value after replacing the MAIN BOARD. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 20 / 97 Only for training and service purposes...
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Lamp : A-Dim LED : N.C PWM Dim #1 GND/P_DIM2 Error-out • Lamp SCANNING Model : PWM Dim #2 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 21 / 97 Only for training and service purposes LGE Internal Use Only...
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- signal test select channel When the signal is strong, use the attenuator (-10dB, -15dB, -20dB etc.) Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 22 / 97 Only for training and service purposes LGE Internal Use Only...
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1. Checking method for remote controller for adjustment Version Press the IN-START with the remote controller for adjustment Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 23 / 97 Only for training and service purposes LGE Internal Use Only...
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LCD TV connection diagram (1) date <ALL MODELS> As the part connecting to the external input, check the screen condition by signal Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 24 / 97 Only for training and service purposes LGE Internal Use Only...
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1. Check the signal strength or check whether the screen is normal when the external device is connected. 2. After measuring each voltage from power supply, finally replace the MAIN BOARD. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 25 / 97...
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Checking item : 1. Defective pixel 2. Residual image 3. MODULE error (ADD-BAR,SCAN BAR..) 4.Video error (Classification of MODULE or Main-B/D!) Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 26 / 97 Only for training and service purposes LGE Internal Use Only...
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Front LED control : Menu Option Power Indicator Standby light ON ST-BY condition: Red Power ON condition: white Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 27 / 97 Only for training and service purposes LGE Internal Use Only...
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Lamp : A-Dim LED : N.C PWM Dim #1 GND/P_DIM2 Error-out • Lamp SCANNING Model : PWM Dim #2 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 28 / 97 Only for training and service purposes LGE Internal Use Only...
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Lamp : A-Dim LED : N.C PWM Dim #1 GND/P_DIM2 Error-out • Lamp SCANNING Model : PWM Dim #2 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 29 / 97 Only for training and service purposes LGE Internal Use Only...
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1. Press the IN-START button of the remote controller for adjustment 2. Check the entry into adjustment item 3 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 30 / 97 Only for training and service purposes LGE Internal Use Only...
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1. Press the MENU button on the remote controller 2. Select the AUDIO function of the Menu 3. Select TV Speaker from Off to On Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 31 / 97 Only for training and service purposes...
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③ Connect the tester RX1 to the speaker terminal and if you hear the “Chik Chik” sound when you touch the GND and output terminal, the speaker is normal. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 32 / 97...
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When checking the Pre-Amp when the power is in ON condition, it is normal when the Analog Tester needle moves slowly, and defective when it does not move at all. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 33 / 97...
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■ Push the OK key to store the value. Then the message “Saving OK” is pop. ■ Press the exit key to finish V-COM adjustment. Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 34 / 97 Only for training and service purposes...
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3.3V I2C_SCL5 IC104 RGB,H/V PC-RGB I2C_SDA5 L/R In PC-AUDIO HDCP EEPROM SPDIF OUT OPTIC IC100 Ethernet UART RS-232C MAX3232 (IC4000) Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. 3.5V Only for training and service purposes LGE Internal Use Only...
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[AIN2_R_AADC] RGB_PC DSUB_DET [OPCTRL7] RGB_DDC_SCL [VGA_SCL] EDID EEPROM RGB_DDC_SDA AT24C02BN-SH-T [VGA_SDA] DSUB_R+, DSUB_G+, DSUB_B+ [RP],[GP],[BP] DSUB_VSYNC, DSUB_HSYNC [VSYNC], [HSYNC] MICOM [EDID_WP] Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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CK+/-_HDMI1_JACK, D0+/-_HDMI1_JACK, D1+/-_HDMI1_JACK, D2+/-_HDMI1_JACK DDC_SCL_2_JACK DDC_SDA_2_JACK HDMI_HPD_2_JACK CK+/-_HDMI2_JACK, D0+/-_HDMI2_JACK, D1+/-_HDMI2_JACK, D2+/-_HDMI2_JACK Main SoC DDC_SCL_3_JACK DDC_SDA_3_JACK HDMI_HPD_3_JACK CK+/-_HDMI3_JACK, D0+/-_HDMI3_JACK, D1+/-_HDMI3_JACK, D2+/-_HDMI3_JACK Q3001 HDMI_CEC MICOM Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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+12V [USB_DP_P0] +5V_USB /USB_OCD2 [GPIO42] IC8802 IC4300 [GPIO45] USB_CTL2 SOC_TX TX / RX [U0TX] [U0RX] SOC_RX 9PIN DSUB NEC_RXD NEC_TXD MICOM Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
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I2C_SDA1 (STA380BW) [STB_SDA] I2C_SCL1 [STB_SCL] IC7500 Main SoC AMP_MUTE SPDIF_OUT [ASPDIF0] SIDE_HP_MUTE Earphone [AL0_ADAC] HP_LOUT, HP_ROUT [AR0_ADAC] TPA6132A2 HEAD PHONE IC6100 Copyright ⓒ 2012 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...