LG 29MN33D Service Manual Download Page 20 | Manualshive

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LGE Internal Use Only

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LG Electronics. Inc. All right reserved.

Only for training and service purposes

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Summary of Contents for 29MN33D

Page 1: ...tp eic lgservice com Asia Oceania http biz lgservice com Internal Use Only Printed in Korea P NO CHASSIS MODEL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL SERVICE MANUAL MFL67580683 1301 REV00 29MN33D 29MN33D PSP LA31R LED TV ...

Page 2: ...s Inc All right reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 9 TROUBLE SHOOTING 13 BLOCK DIAGRAM 20 EXPLODED VIEW 21 SCHEMATIC CIRCUIT DIAGRAM ...

Page 3: ... Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed metallic parts such as antenna terminals phone jacks etc If the exposed metallic part has a return path to the chassis the ...

Page 4: ...n your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent electrostatic charge b...

Page 5: ...e solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replaced...

Page 6: ... 10 3 Power Voltage Standard input voltage 100 V 240 V 50 60 Hz Standard Voltage of each products is marked by mod els 4 Specification and performance of each parts are followed each drawing and specification by part number in accord ance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other spe...

Page 7: ... 768 60Hz Recommend 1366 x 768 60Hz Digital Max 1366 x 768 60Hz Recommend 1366 x 768 60Hz 4 Operating Environment Temp 10 C 35 C Humidity 20 80 5 Storage Environment Temp 10 C 60 C non condensing Humidity 5 90 non condensing No Item Specification Remarks 1 Market Brazil 2 Broadcasting system ISDB T PAL M PAL N 3 Component Input 1EA Y Cb Cr Y Pb Pr 4 RGB Input RGB PC Analog D SUB 15Pin 5 HDMI Input...

Page 8: ... 50 00 74 25 HDTV 1080I 7 1920 1080 27 00 24 74 25 HDTV 1080P 8 1920 1080 33 75 30 00 74 25 HDTV 1080P 9 1920 1080 56 250 50 148 5 HDTV 1080P 10 1920 1080 67 43 67 5 59 94 60 148 35 148 50 HDTV 1080P 5 2 HDMI DTV 5 3 Component No Specification Remark Resolution H freq kHz V freq Hz Pixel clock MHz 1 720 480 15 730 59 940 13 500 SDTV DVD 480I 525I 2 720 480 15 750 60 000 13 514 SDTV DVD 480I 525I 3...

Page 9: ...X bin by clicking Read 5 Click Auto tab and set as below 6 Click Run 7 After downloading check OK message USB DOWNLOAD epk file download 1 Make New folder named LG_DTV and put ISP file epk in the folder 2 Put the USB Stick to the USB socket 3 Automatically detecting update file in USB Stick If your downloaded program version in USB Stick is Low it didn t work But your downloaded version is High US...

Page 10: ...en size Color Characteristics 3 3 Function Check 3 3 1 Check display and sound Check Input and Signal items cf work instructions 1 TV 2 AV CVBS 3 COMPONENT 480i 4 RGB PC 1366 x 768 60 Hz 5 HDMI PC 1366 x 768 60 Hz 6 PC Audio In Display and Sound check is executed by Remote controller Caution Not to push the INSTOP KEY after completion if the function inspection NO Item CMD 1 CMD 2 Data 0 Enter dow...

Page 11: ...k 4 0 Manual Download Model Name and Serial Number If the TV set is downloaded By OTA or Service man Some times model name or serial number is initialized Not always There is impossible to download by bar code scan so It need Manual download 1 Press the Instart key of ADJ remote controller 2 Go to the menu Model Number D L like below photo 3 Input the Factory model name ex 24MN33D or Serial number...

Page 12: ...ration refer to the below table 4 6 Model Name SW Version Adjust check Press the Instart key of ADJ remote controller 4 6 1 Model Name SW Version Check 1 Check Model Name 2 Check S W Version Refer to the IC Ver in the BOM 4 6 2 Adjust Check 1 Check Country Group 2 Check Area Option 3 Check Tool Option Refer to the BOM Comments 4 Check Adjust ADC Comp RGB is OK 5 Check EDID RGB HDMI is OK After che...

Page 13: ... IC802 Recheck N Check IC2602 Output Voltage Level 3 3V_ST Replace IC2602 N Y Check IC800 Output Voltage Level 5V Replace IC800 N Y Y Y Y Check IC804 Output Voltage Level 12V Replace IC804 N Y Check IC810 Output Voltage Level 2 5V Replace IC810 N Check X201 Clock 24MHz Replace X201 N Check X201 Clock 24MHz Replace X201 N Replace IC100 Flash Memory Y Check IC806 Output Voltage Level 1 15V Replace I...

Page 14: ... R131 Check IC101 Replace Main Scaler IC N N Check Panel clock P601 9 10 Check IC101 Repair Main B D N Check Panel power P601 27 28 29 30 12V IC804Output 12V Replace IC804 N Y Replace T con Board or module Check FFC Cable for damage or open conductors Replace Cable N Y Y Y Check LED Driver output LED Driver B d P1101 1 Check LED Driver IC1100 Replace LED Driver IC N Y ...

Page 15: ...ital TV Check RF Cable Check Tuner TU2603 Data CLK SYN VAL Replace Tuner TU2603 Recheck Y N 1 Check Tuner TU2603 5 Power 3 3V 2 Check IC803 Output voltage 3 3V Replace IC803 Y N Check Tuner TU2602 I2C Signal SCL R3735 SDA R3736 Check IC101 Y N 1 Check Tuner TU2602 7 Power 1 8V 2 Check IC805 Output voltage 1 8V Replace IC805 Y N ...

Page 16: ... Wave form of C220 Wave form of C218 Wave form of C222 Wave form of Comp Y Wave form of Comp Pb Wave form of Comp Pr Check input signal format Is it supported Check signal R239 R237 R241 C220 C218 C222 Replace R239 R237 R241 C220 C218 C222 Y N Check JK2800 Replace JK2800 or Check Device Y N Y IC101 has problem Y Check Component Cable ...

Page 17: ... form of R4024 Hsync Wave form of R230 C206 Wave form of R228 C204 Wave form of R232 C208 Check input signal format Is it supported Check Hsync Vsync R4024 R4025 Replace R4024 R4025 Check signal RGB R228 R230 R232 C204 C206 C208 N Check JK406 Replace JK406 or Check Device Y N Y Replace R228 R230 R232 C204 C206 C208 N IC101 has problem Y Check RGB Cable Y Y ...

Page 18: ...and service purposes 6 No Video HDMI Check input signal format Is it supported Y Check JK501 for proper connection or damage Replace connector Y N Y Check HDMI Cable for damage or open connector Check I2C Signal JK501 15 16 Re download EDID data Y N Check HDCP Key IC101 Replace Scaler IC101 N ...

Page 19: ... t hear any audio and Device support the audio signal normally Check Speaker and its wire connection P700 and the resistance Check Signal from IC700 L700 L701 L706 L709 Y Replace IC700 N Check R4045 Voltage Level 3 3V Y Replace IC807 3 3V N Y Check Signal from IC101 SDA SCL R703 R214 R707 R213 Y Replace IC101 N Replace connector or Speaker N ...

Page 20: ... 20 LGE Internal Use Only Copyright LG Electronics Inc All right reserved Only for training and service purposes BLOCK DIAGRAM ...

Page 21: ...and mechanical parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X RADIATION Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPO...

Page 22: ...7 GPIO98 AD14 AR103 22 AR104 22 IC100 W25Q80BVSSIG S_FLASH_MAIN_MACRONIX 3 WP IO2 2 DO IO1 4 GND 1 CS 5 DI IO0 6 CLK 7 HOLD IO3 8 VCC IC100 1 MX25L8006EM2I 12G S_FLASH_MAIN_WINBOND 3 WP 2 SO SIO1 4 GND 1 CS 5 SI SIO0 6 SCLK 7 HOLD 8 VCC LNA_CTRL_1 LNA_CTRL_2 IC102 H27U1G8F2CTR BC NAND_1G_HYNIX_9103 DEV EAN35669103 26 NC_17 27 NC_18 28 NC_19 29 I O0 30 I O1 31 I O2 32 I O3 33 NC_20 34 NC_21 35 NC_2...

Page 23: ...RESET N5 IC101 MSD804KKX S7LR M_NON_MS10 AVDDLV_USB K12 VDDC_1 G9 VDDC_2 H9 VDDC_3 K10 VDDC_4 K11 VDDC_5 L10 VDDC_6 M12 VDDC_7 M13 VDDC_8 N12 VDDC_9 P14 VDDC_10 P15 VDDC_11 R10 VDDC_12 R14 VDDC_13 R15 VDDC_14 T10 NC_2 P10 FB_CORE P19 AVDDL_MOD R16 NC_1 L11 DVDD_DDR M14 AVDD2P5_ADC_1 W9 AVDD2P5_ADC_2 W10 AVDD2P5_ADC_3 W11 AVDD2P5_ADC_4 W12 AVDD25_LAN Y17 AVDD_MOD_1 V18 AVDD_MOD_2 U19 NC_3 W14 NC_4 ...

Page 24: ... 6 SC1_R CI_CD1 SC1_CVBS_IN CI_TS_DATA 5 CI_TS_DATA 3 PCM_REG SC1_R_IN PCM_IRQA SCART1_MUTE PCM_D 4 DTV MNT_VOUT CI_TS_DATA 7 PCM_A 9 PCM_RST PCM_D 0 PCM_D 1 PCM_D 2 CI_TS_DATA 4 PCM_CE PCM_A 13 PCM_D 5 SC1_G SCART1_Lout PCM_D 3 CI_TS_VAL CI_TS_DATA 2 PCM_WAIT PCM_A 10 CI_TS_DATA 0 CI_TS_SYNC CI_TS_DATA 1 SCART1_Rout SC1_SOG_IN PCM_CD PCM_A 12 PCM_A 14 PCM_A 8 PCM_IORD PCM_IOWR SC1_ID SC1_FB PCM_D...

Page 25: ...UT2 8 RIN2 9 ROUT2 10 DIN2 11 DIN1 12 ROUT1 13 RIN1 14 DOUT1 15 GND 16 VCC R459 0 NON_Hotel_Model RS232C Bypass P1104 12507WS 04L 1 2 3 4 5 DSUB_HSYNC 2 E18 VA427 20V OPT R451 0 JP413 R454 0 OPT PM_RXD PM_RXD 3 3V_Normal JP416 VA418 20V 5V_USB C420 47pF 50V R463 0 OPT IR_OUT R472 10K C426 0 1uF 16V Hotel_Model RS232C apply 3 3V_ST 3 3V_ST VA422 20V R443 75 C400 0 1uF VA428 20V OPT R441 75 C424 0 3...

Page 26: ...2 7K HDMI_CEC R501 10K R500 47K D505 RCLAMP0524PA OPT ESD_HDMI_SEMTECH DEV 1 8 2 7 3 6 4 5 9 10 R521 2 7K HDMI_ARC D0 _HDMI2 CEC_REMOTE_S7 VA505 OPT VA502 20V VA508 20V OPT 5V_Normal R529 10K DDC_SDA_2 3 3V_ST VA507 20V OPT D505 1 IP4283CZ10 TBA ESD_HDMI_NXP 3 GND_1 2 TMDS_CH1 4 TMDS_CH2 1 TMDS_CH1 5 TMDS_CH2 6 NC_1 7 NC_2 8 GND_2 9 NC_3 10 NC_4 D1 _HDMI2 DDC_SDA_2 5V_DET_HDMI_2 D504 1 IP4283CZ10 ...

Page 27: ...T 3 3V_ST R616 3 3K JP602 12V_PANEL_POWER C603 100pF 50V OPT JP600 R617 3 3K KEY2 D603 30V OPT Q602 MMBT3904 NXP OPT IR_OUT E B C LED_AMBER R623 47K OPT IR_OUT LVA_0M LVA_1M JP609 R627 4 7K JP606 R619 10K OPT IR_OUT JP612 C606 10uF 25V LVA_3M P601 10031HR 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 LVA_2P KEY_SDA LVA_3P D601 30V R600 10K 3 3V_ST Q600 MMBT...

Page 28: ...50V D706 100V 1N4148W OPT D704 100V 1N4148W OPT 0 1uF C713 50V D705 100V 1N4148W OPT C729 390pF 50V AMP_SDA R719 12 0 1uF C738 50V R715 12 C735 0 47uF 50V C723 22000pF 50V C730 390pF 50V C728 390pF 50V R729 5 1K R720 12 R700 3 3 OPT R730 5 1K R717 12 AUD_MASTER_CLK C710 22000pF 50V L706 NRS6045T100MMGK Audio_Coil_ABCO 10 0uH AMP_RST R707 100 L700 NRS6045T100MMGK Audio_Coil_ABCO 10 0uH AUD_SCK C734...

Page 29: ...TI_ON R820 8 2K C849 47uF 25V C856 10uF 10V 1 15V_VDDC C804 10uF 25V C805 10uF 10V R859 30K 1 BR FULL_NIM TEST POINT R844 10K 1 C892 1uF 10V Q805 PMV48XP G D S R806 10K OPT R849 0 5 C817 0 1uF 50V OPT C861 0 1uF 50V C816 0 1uF 50V L807 CPI2520NHL3R3ME 2520 3 3uH C863 0 1uF 50V C881 47pF 50V OPT C823 0 1uF 50V OPT R804 100K 1 OPT R800 100K 1 R867 4 7K 1 BR FULL_NIM R898 180K OPT C891 1uF 25V R847 0...

Page 30: ...D_2 D9 VDD_3 G7 VDD_4 K2 VDD_5 K8 VDD_6 N1 VDD_7 N9 VDD_8 R1 VDD_9 R9 VDDQ_1 A1 VDDQ_2 A8 VDDQ_3 C1 VDDQ_4 C9 VDDQ_5 D2 VDDQ_6 E9 VDDQ_7 F1 VDDQ_8 H2 VDDQ_9 H9 NC_1 J1 NC_2 J9 NC_3 L1 NC_4 L9 NC_6 T7 VSS_1 A9 VSS_2 B3 VSS_3 E1 VSS_4 G8 VSS_5 J2 VSS_6 J8 VSS_7 M1 VSS_8 M9 VSS_9 P1 VSS_10 P9 VSS_11 T1 VSS_12 T9 VSSQ_1 B1 VSSQ_2 B9 VSSQ_3 D1 VSSQ_4 D8 VSSQ_5 E2 VSSQ_6 E8 VSSQ_7 F9 VSSQ_8 G1 VSSQ_9 G9...

Page 31: ...2 33 CI_ADDR 11 CI_MDI 4 R1922 100K CI_MDI 3 CI_ADDR 9 CI_TS_CLK CI_TS_DATA 6 R1927 33 CI_ADDR 1 CI_WE CI_TS_DATA 7 CI_MDI 5 PCM_A 8 CI_ADDR 2 PCM_A 1 CI_MCLKI AR1901 33 PCM_A 6 R1904 10K AR1909 33 PCM_A 7 R1914 100 R1925 100 PCM_OE CI_IOWR CI_OE R1931 100 PCM_REG NAND_EN 3 3V_CI R1919 47 R1920 100 L1901 0 CI_IORD AR1903 33 R1916 0 OPT PCM_IOWR CI_MDI 2 CI_MDI 5 GND R1917 10K PCM_A 10 PCM_WE R1929...

Page 32: ...2 58 A1 A1 B1 B1 R3802 0 OPT BR FULL_NIM_D_DEMODE_0 R3804 0 OPT BR FULL_NIM_D_DEMODE_0 R3803 0 OPT BR FULL_NIM_D_DEMODE_0 R3801 0 OPT BR FULL_NIM_D_DEMODE_0 R3799 10K BR FULL_NIM R3798 1K BR FULL_NIM C3750 5pF 50V OPT C3751 5pF 50V OPT R3780 3 3 OPT R3781 3 3 OPT R3782 2K OPT R3756 0 OPT BR TU_NON_BUFFER_VIDEO R3751 220 BR TU_BUFFER_VIDEO R3750 1K OPT Q3703 MMBT3906 NXP BR TU_BUFFER_VIDEO E B C R3...

Page 33: ...ID COMP_L_IN DTV MNT_R_OUT ZD2805 5 6B SCART JACK C2842 47pF 50V OPT SCART_ADC_FILTER AUDIO D2807 20V OPT R2825 470K L2813 CM2012FR10KT OPT SCART_ADC_FILTER_L AUDIO SC1_B JP2809 R2842 1K C2834 47pF 50V OPT SCART_ADC_FILTER R2806 75 SCART JACK L2813 1 0 SCART_NON_ADC_FILTER AUDIO R2811 75 SCART JACK JK2800 PPJ234 05 5A GN O SPRING 6A GN E LUG 4A GN CONTACT 7B BL E LUG S 5B BL O SPRING 7C RD E LUG S...

Page 34: ...1 8W 1 19V IC2901 TPS40210DGQR 3 DIS EN 2 SS 4 COMP 1 RC 5 FB 6 GND 7 ISNS 8 GDRV 9 BP 10 VDD 11 EP C2911 33uF 100V C1123 4700pF 50V R1121 100 C1124 33uF 100V R1124 47K 1 R1145 1M 1 8W 1 C2901 47uF 25V C1116 100pF 50V C2914 1uF 100V R2909 220K 1 16W R2903 10K 1 16W C2909 0 1uF 50V R1129 100K 1 L1101 33uH R2901 4 7K C1114 1000pF 50V 19V R2905 1K 1 16W 1 R1122 100K R1135 1 5K 1 C1127 0 1uF 250V D290...

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