Instruction/ maintenance manual of the product 32LH7000 LG Electronics
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LCD TV SER VICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : LD91D MODEL : 32LH7000 32LH7000-ZA North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 2 - CONTENTS CONTENTS .............................................................................................. 2 PRODUCT SAFETY .
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 3 - SAFETY PRECAUTIONS Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by i n t h e Schematic Diagram and Exploded View.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 4 - CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 5 - IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent flat against the circuit foil.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 6 - SPECIFICA TION NOTE : Specifications and others are subject to change without notice for improvement . 4. General specification 1.
5. Chroma& Brightness (1) Module optical specification 1) Stable for approximately 60 minutes in a dark environment at 25ºC 2) Operating Ambient Humidity : Min 10, Max 90 %RH 3) Supply Voltage : .
- 8 - LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 6. Component V ideo Input (Y , P B , P R ) No Specification Remark Resolution H-freq(kHz) V-freq(Hz) 1. 720x480 15.73 60.00 SDTV,DVD 480i 2.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 9 - 8. HDMI Input (PC/DTV) (1) DTV Mode No Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark 1 720x480 15.734 /15.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 10 - ADJUSTMENT INSTRUCTION 1.
4) Updating is staring. 5) Fishing the version uploading, you have to put USB stick and “AC Power” off. 6) After putting “AC Power” on and check updated version on your TV. * If downloading version is more high than your TV have, TV can lost all channel data.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 12 - * Connecting picture of the measuring instrument (On Automatic control ) Inside PATTERN is used when W/B is controlled.
* Edid data and Model option download (RS232) - Manual Download * Caution Use the proper signal cable for EDID Download - Analog EDID : Pin3 exists - Digital EDID : Pin3 exists (1) Analog Data 128Byte (2Bi) (2) DIGITAL DATA(HDMI-1/2/3/4) 256Byte * Detail EDID Options are below ⓐ Product ID ⓑ Serial No: Controlled on production line.
- 14 - LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 5. Serial number D/L • press “Power on” key of service remocon. (Baud rate : 115200 bps) • Connect RS232 Signal Cable to RS-232 Jack.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 15 - 1. TV/CA TV doesn’t display TROUBLESHOOTING 2. DTV doesn’t display Ch eck th e o u tp u t d ata o f IC104 in th e Jack Bo ard Pin 52.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 16 - 3. A V 1/2 doesn’t display Ch eck JK 200, JK20 1 Can y o u see t h e n o rmal w av efo rm? NO JK20 0, JK20 1 ma y h ave p r o b lem.
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 17 - 5. RGB PC doesn’t display Ch eck P30 0 , Can y o u see t h e n o rmal w av efo rm? NO JP300 ma y h av e p r o b lem. Rep l ace th is Jack.
- 18 - LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes 6. HDMI doesn’t display Check input c onnect JK600, JK601, JK602, JK60 .
LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes - 19 - BLOCK DIAGRAM RGB COMPONENT F-SCART AV3 CLK,ERR,SYN,DATA[0] CVBS, Y/C DDR.
- 20 - LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes 300 200 400 530 540 820 550 830 570 A5 801 805 804 803 802 806 900 910 120 560 122 123 301 310 500 580 A10 A2 510 EXPLODED VIEW Many electrical and mechanical parts in this chassis have special safety-related characteristics.
ISP_TXD EEPROM_SDA USB_DM USB_DP FE_TUNER_SDA THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
+1.8V_DDR THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
+5V_ST VGA_EEPROM_WP ENKMC2838-T112 D400 A1 C A2 THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
PCM_5V_CTL RSR025P03 Q501 S D G 2SC3052 Q500 E B C THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
0.1uF 50V C729 OPT 0.1uF 50V C749 0.1uF 50V C735 SPK_R+ 007:AA17 POWER_DET 22000pF 50V C732 SPK_R- 007:AA17 MS_LRCK 002:V8 +24V_AMP 0.1uF 50V C728 4.7K R730 AMP_MUTE 002:C25 0.1uF 50V C733 OPT SDA_SUB/AMP 001:L3;004:Y11 SPK_L- 007:AA18 0.1uF 50V C750 4.
0.1uF 50V C842 PANEL_POWER +5V_ST +3.3V_ST +5V_GENERAL SI4925BDY Q806 3 S2 2 G1 4 G2 1 S1 5 D2_1 6 D2_2 7 D1_1 8 D1_2 +12V PANEL_CTL 001:AK20 +5V_ST +5V_ST 10K R832 OPT 10K R829 +3.3V_AVDD_MPLL POWER_ON/RL_ON +5V_CI +3.3V_ST 22K R837 22K R839 10K R833 10K R818 10K R821 PWM_DIM +5V_GENERAL 10K OPT R823 +24V INV_CTL 1uF 25V C804 OPT A_DIM 001:W12 +3.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION. 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.
Feb., 2009 Printed in Korea P/NO : MFL58858405 Downloaded From TV-Manual.com Manuals.
An important point after buying a device LG Electronics 32LH7000 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought LG Electronics 32LH7000 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data LG Electronics 32LH7000 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, LG Electronics 32LH7000 you will learn all the available features of the product, as well as information on its operation. The information that you get LG Electronics 32LH7000 will certainly help you make a decision on the purchase.
If you already are a holder of LG Electronics 32LH7000, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime LG Electronics 32LH7000.
However, one of the most important roles played by the user manual is to help in solving problems with LG Electronics 32LH7000. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device LG Electronics 32LH7000 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
