Instruction/ maintenance manual of the product 32LD350-UA LG Electronics
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LCD TV SER VICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : LA04A MODEL : 32LD350 32LD350-UA North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.
LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes - 2 - CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS .
LGE Internal Use Only Copyright 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 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 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 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. 1. Application range This spec sheet is applied all of the 19”, 22”, 26”, 32” LCD TV with LA04A chassis.
- 7 - LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes 5. Chrominance & Luminance 5.1. 32LD350-UB (AUO) No. Item Min Typ Max Unit Remarks 1 Max Luminance Module 245 294 cd/m 2 (Center 1-point / Full White Pattern) Set 300 380 2 Luminance uniformity 3 Color coordinate RED X Typ.
- 8 - LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes 6. Component Video Input (Y , C B/ P B , C R /P R ) No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed 1. 720*480 15.73 60 13.
LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes - 9 - No Resolution H-freq(kHz) V-freq.(kHz) Pixel clock Proposed PC DDC 1 640*350 31.469 70.08 25.17 EGA X 2 720*400 31.469 70.08 28.32 DOS O 3 640*480 31.
LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes - 10 - ADJUSTMENT INSTRUCTION 1. Application range This spec. sheet applies to LA04A Chassis applied LCD TV all models manufactured in TV factory 2.
- 11 - LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes 5. Manual Adjustment 5.1. ADC(Saturn5) Adjustment (1) Overview ADC adjustment is needed to find the optimum black level and gain in Analog-to-Digital device and to compensate RGB deviation.
- 12 - LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes • HDMI II [C/S: XXAA] EDID Block 0 table = EDID Block 1 table = • RGB [C/S: XX] EDID Block 0 table = 5.3. White Balance Adjustment (1) Overview • W/B adj.
- 13 - LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes 2) Adjustment Map Applied Model : 19LD350-UB, 22LD350-UB, 26LD350-UB, 32LD350-UB (5) Adj. method • Auto adj. method 1) Set TV in adj.
- 14 - 5.4. HDCP SETTING - HDCP setting is not necessary in Saturn5 model. 5.5 Option selection per country (1) Overview - Option selection is only done for models in Non-USA North America due to rating - Applied model: LA92A Chassis applied None USA model(CANADA, MEXICO) (2) Method 1) Press ADJ key on the Adj.
LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes - 15 - 7. USB S/W Download (option) (1) Put the USB Stick to the USB socket (2) Automatically detecting update file in USB Stick - If your downloaded program version in USB Stick is Low, it didn ’ t work.
LGE Internal Use Only Copyright LG Electronics. Inc. All right reserved. Only for training and service purposes - 16 - 300 500 510 120 A10 200 800 530 550 810 900 910 540 521 400 A21 A2 A5 LV 1 EXPLODED VIEW Many electrical and mechanical parts in this chassis have special safety-related characteristics.
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.
Fiber Optic 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.
USB DOWN STREAM 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.
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.
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1. Power-up boot check Check stand-by Volt age. P403 9~12pin : +3.5 V_ST Check Power connector Check Fuse. Replace Po wer b o ar d. Check X100 clock 12MHz Replace X100.
2. Digital TV Video Check RF Cab le & Signal Check Tuner 3.3V Power L5003 Replace L5003 Check Tuner 1.2V Power IC5001 2 pin : 1.2V Check IF_P/N Si gnal TU5001 17/18 Pin Check Demodu lator Input Clock(X1005 -25Mhz) R eplace X1005 Check IC1004(LG DT) Output - AR1070, AR1071 Replace IC5001.
3. Analog TV Video Check RF Cab le & Signal Check Tuner 3.3V Power L5003 Replace L5003 Check Tuner 1.2V Power IC5001 2 pin : 1.2V Check CVBS Sig nal TU5001 11 P in Replace IC5001. Check Tuner 5V Power L5004 Check IC401 Check Mstar LVDS Output Replace Mstar(IC100) or Main Board.
ok 4. AV Video Check input signal for mat. Is it suppor ted? Check AV Cable for damage for damage o r open conductor Check JK9800 (*JK3302 ) CVBS Signa l Line R137 (* R114) Check CVBS_DET Sig nal Replace R9802 or R9803 ok ok ok No No Replace Jack * JK3302 is Side AV supported mode l 26/32LD350 models 5.
6. RGB Video Check input signal for mat. Is it suppor ted? Check RGB Cabl e conductors for damage o r open conductor Check EDID & EEPROM IC1105 I2C Si gnal R1141, R1143( SDA,SCL ) Check JK1104 H/V.
7. HDMI Video Check input signal for mat. Is it suppor ted? Check HDM I Cable conductor s for damage o r open conductor. Check EDID & EEPROM IC7701 (*I C7702) I2C Signal Check JK7700, JK7702 ok ok ok No No Replace the defective I C or r e-download EDID data Check HDCP Key NVRAM(IC105) Power & I2 C Signal Replace th e de f e c tive IC.
8. All Source Audio Check the TV Speaker Menu (Menu - > Sound -> TV Speaker ) On ok ok Check Output Signa l P600 1, 2, 3, 4 pi n. Rep lace Audio AMP IC(NT P-3100L) IC600. ok No Check Connector & P600 Replace connector if found to be dam aged.
9. Digital TV Audio Check RF Cab le & Signal Check Tuner 3.3V Power L5003 Replace L5003 Check Tuner 1.2V Power IC5001 2 pin :1.2V Check IF_P/N Si gnal TU5001 17/18 Pin Check Demodu lator Input Clock(X1005 -25Mhz) R eplace X1005 Check IC1004(LG DT) Output - AR1070, AR1071 Replace IC5001.
10. Analog TV Audio Check RF Cab le & Signal Check Tuner 3.3V Power L5003 Replace L5003 Check Tuner 1.26V Power IC5001 2 pin : 3.3V Check SIF Signal & Buf fer signal TU5001 11 P in / R5032 Replace IC5001. Check Tuner 5V Power L5004 Check IC401 Follow procedure ‘8.
12. Component Audio Check Component Cab le for damage o r open conductor. Check JK9800 & Signal Line ok ok No Replace Jack 11. AV Audio Check AV Cable for damage for damage o r open conductor Check JK9800, *JK3302 & Signal Line ok ok No Replace Jack * JK3302 is Side AV supported mode l 26/32LD350 models Follow procedure ‘8.
LG Electronics/ LCD TV Division LCD TV Gr. LD350 Block Diagram Video Signal Block Video Signal Block Audio Signal Bloc k Audio Signal Bloc k Flash Block & Rese t Flash Block & Rese t MSD3368 I.
D-sub RGB HDMI 1 Side AV2 CVBS, L/R DDR2 (512Mbit) H5PS5162FFR-S 6C NAND Flash (512Mbit) Digital Audio (Optic) USB Digital AMP NTP3100L I2S NVRAM RGB/H/V DDR_Data[0:15], DQS, DM … DDR2 (512Mbit) H5PS5162FFR-S 6C Data[16:31] Addr.
MSD3368GV Video Signal Block Video Signal Block DSUB_R DSUB_G DSUB_B SC1_G SC1_R SC1_B CVBS3 CVBS2 SIF0P CVBS0/RF_CVBS DSUB_HSYNC DSUB_VSYNC DSUB_R DSUB_G DSUB_B DSUB_HSYNC DSUB_VSYNC COMP1_Y COMP1_Pr.
Audio Signal Block Audio Signal Block MSD3368GV AUL2 AUR2 SPDIF_OUT I2S_OUT_MCK AV_L_IN AV_R_IN AUL1 AUR1 AUL0 AUR0 AUL4 AUL5 COMP1_R_IN COMP1_L_IN SIDEAV_R_IN SIDEAV_L_IN PC_R_IN PC_L_IN I2S_SCK I2S_LCRK I2S_MASTER_CLK Digital AMP NTP3100N SPDIF_OUT I2S_LCRH +3.
MSD3368GV Flash Block & Reset Flash Block & Reset NAND FLASH (HY27US08121 B-TPCB) PCM_A0 PCM_A1 PCM_A2 PCM_A3 PCM_A4 PCM_A5 PCM_A6 PCM_A7 F_RBZ /PF_OE /PF_CE0 /PF_CE1 PF_ALE /PF_WE RB RE CE CL.
MSD3368GV I2C Block I2C Block TUNER (TDVJ- H031F) LHSYNC2/RX1 LVSYNC2/TX1 UART2_TX/SCKM UART2_RX/SDAM GPIO 60 GPIO 62 100 ohm 100 ohm +5V_Gen. 4.7k ohm 4.7k ohm +3.3V_TU 3.3k ohm 3.3k ohm 0 ohm 0 ohm +3.3V_Nor. 3.3k ohm 3.3k ohm EEPROM (AT24C512BW) IC104 33 ohm 33 ohm 0 ohm 0 ohm +3.
MSD3368GV GPIO Block GPIO Block DSUB_DET ET_RXD1 5V_HDMI_1 GPIO 86 GPIO 88 AMP_RST AUDIO AMP ( NTP3100L) COMP1_DET ET_RXD0 AV_CVBS_DET ET_TXD0 SIDEAV_DET ET_TXD1 RS232C (MAX3232CDR) UART_RX2 DBG_RX UA.
MSD3368 GPIO Block MSD3368 GPIO Block Pin Num ber Pin Na m e GP1 . 5 Si g nal N am e( Ve r3 ) Pin Num b er Pin Na m e GP1 . 5 Si gnal Nam e( V er 3 ) 1 H W R ESET D 4 S5 / S6 _Res et 72 T S 1_ C L K A.
LVDS 출력 Block LVDS 출력 Block MSD3368GV P801(30pin) LVDS Wafer (HD, 60Hz) LGD(19”/22”) P802(30pin) LVDS Wafer (HD, 60Hz) AUO(26”/32”) LVDS TXA0+/- LVDS TXA1+/- LVDS TXA2+/- LVDS TXAC+/- .
POWER Block (+3.5V_ST)_For 26”/32” POWER Block (+3.5V_ST)_For 26”/32” S5/S6 Reset P403 (#9~12), +3.3V_ST IC103 MAX810RT R (Reset) +1.26V_VDDC +1.8V_DDR IC403 MP2212DN (DCDC)3A IC407 MP2212DN (DCDC)3A IC409 NL17SZ08DFT2G (OPT) Power_DET +3.3V_AVDD_MPLL Q7703 FDV301N (FET) CEC_REMOTE IC1201 MAX3232CDR (RS-232C) +3.
POWER Block (+24V & 12V &+12V/+15V)_For 26”/32” POWER Block (+24V & 12V &+12V/+15V)_For 26”/32” P403 (#17,19,21) +12V +5V_USB +3.
POWER Block (+3.3V_N oraml)_For 26”/32” POWER Block (+3.3V_N oraml)_For 26”/32” IC105 CAT24WC08W HDCP EEPROM IC405 AOZ1073AIL (DCDC)3A IC100 MSD3159GV Main_SOC(S5) IC101 MX25L3205DM2I Serial Flash IC1104 NL17SZ00DFT2G SPDIF IC104 AT24C512BW EEPROM +3.
IC7700~7702 AT24C02BN EDID EEPROM IC1100 TPA6110A2DGNRG4 HP AMP IC1001 SC156515M LDO +5V_Norm al +5V_Normal L407 IC1105 AT24C02BN EDID EEPROM +3.3V _PVSB IC409 AOZ1073AIL (DCDC)3A For HDMI For RGB PC IC1000 SC4215ISTRT LDO +1.2V _PVSB IC1004 LGDT3305 VSD DEMOD TU6600 TDVJ-H031F Tuner +5V_TU L1005 +3.
S5/S6 Reset P402 (#5,6) +3.3V_ST IC103 MAX810RT R (Reset) +1.26V_VDDC +1.8V_DDR IC403 MP2212DN (DCDC)3A IC407 MP2212DN (DCDC)3A IC409 NL17SZ08DFT2G (OPT) Power_DET +3.
P402(#1,2) IC408 NCP803SN29 3 IC600 NTP-3100L +15V Q401 AO3407A (FET) Power_DET +15V L407 AM P_ VC C +5V_USB +3.3V_Normal IC401 MP8706E N (DCDC)3A IC405 AOZ1073AIL (DCDC)3A IC409 AOZ1073AIL (DCDC)3A R.
POWER Block (+3.3V_N oraml)_For 19”/22” POWER Block (+3.3V_N oraml)_For 19”/22” IC105 CAT24WC08W HDCP EEPROM IC405 AOZ1073AIL (DCDC)3A IC100 MSD3159GV Main_SOC(S5) IC101 MX25L3205DM2I Serial Flash IC1104 NL17SZ00DFT2G SPDIF IC104 AT24C512BW EEPROM +3.
POWER Block (+3.3V_N oraml)_For 19”/22” POWER Block (+3.3V_N oraml)_For 19”/22” IC7700~7702 AT24C02BN EDID EEPROM IC1100 TPA6110A2DGNRG4 HP AMP IC1001 SC156515M LDO +5V_Norm al +5V_Normal L407 IC1105 AT24C02BN EDID EEPROM +3.
An important point after buying a device LG Electronics 32LD350-UA (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 32LD350-UA 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 32LD350-UA - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, LG Electronics 32LD350-UA you will learn all the available features of the product, as well as information on its operation. The information that you get LG Electronics 32LD350-UA will certainly help you make a decision on the purchase.
If you already are a holder of LG Electronics 32LD350-UA, 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 32LD350-UA.
However, one of the most important roles played by the user manual is to help in solving problems with LG Electronics 32LD350-UA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device LG Electronics 32LD350-UA 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
