Download
Share
Print this page
LG 29MN33D Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. LED TV
  5. 29MN33D
  6. Service manual

LG 29MN33D Service Manual

Hide thumbs Also See for 29MN33D:

Advertisement

Quick Links

See also: Owner's Manual
LED TV
SERVICE MANUAL
CHASSIS :
MODEL :
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO :
MFL67580683 (1301-REV00)
LA31R
29MN33D
North/Latin America
Europe/Africa
Asia/Oceania
29MN33D-PSP
Internal Use Only
http://aic.lgservice.com
http://eic.lgservice.com
http://biz.lgservice.com
Printed in Korea

Advertisement

loading

Related Manuals for LG 29MN33D

Summary of Contents for LG 29MN33D

  • Page 1 Internal Use Only North/Latin America http://aic.lgservice.com Europe/Africa http://eic.lgservice.com Asia/Oceania http://biz.lgservice.com LED TV SERVICE MANUAL CHASSIS : LA31R MODEL : 29MN33D 29MN33D-PSP CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. P/NO : MFL67580683 (1301-REV00) Printed in Korea...

  • Page 2: Table Of Contents

    ADJUSTMENT INSTRUCTION ..............9 TROUBLE SHOOTING ................13 BLOCK DIAGRAM .................. 20 EXPLODED VIEW .................. 21 SCHEMATIC CIRCUIT DIAGRAM .............. Copyright © LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Safety Precautions

    An other abnormality exists that must be corrected before the receiver is returned to the customer. Copyright © LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 4: Servicing Precautions

    Copyright © LG Electronics. Inc. All right reserved. - 4 - LGE Internal Use Only Only for training and service purposes...
  • Page 5 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. Copyright © LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only Only for training and service purposes...

  • Page 6: Specification

    1) Performance : LGE TV test method followed 2) Demanded other specification - Safety : CE,IEC specification - EMC : CE,IEC specification Copyright © LG Electronics. Inc. All right reserved. - 6 - LGE Internal Use Only Only for training and service purposes...
  • Page 7 Storage Environment Temp : -10 ˚C ~ 60 ˚C non condensing Humidity : 5 % ~ 90 % non condensing Copyright © LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...
  • Page 8 50 .000 148.500 HDTV 1080P 1920* 1080 67.432 59.940 148.350 HDTV 1080P 1920* 1080 67.5 00 60.000 148.500 HDTV 1080P Copyright © LG Electronics. Inc. All right reserved. - 8 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: Adjustment Instruction

    Use the speed under you didn’t have a DTV/ATV test on production line. 200KHz. Copyright © LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...
  • Page 10 * Display and Sound check is executed by Remote controller. → Caution : Not to push the INSTOP KEY after completion if the function inspection. Copyright © LG Electronics. Inc. All right reserved. - 10 - LGE Internal Use Only Only for training and service purposes...
  • Page 11 4) Check the model name Instart menu → Factory name displayed (ex GP4-LOW) 5) Check the Diagnostics (DTV country only) → Buyer model displayed (ex 24MN33D) Copyright © LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...
  • Page 12 4.7. Outgoing condition Configuration below. * After all function test., press IN-STOP Key by SVC Remote controller. And make Outgoing Condition Copyright © LG Electronics. Inc. All right reserved. - 12 - LGE Internal Use Only Only for training and service purposes...

  • Page 13: Trouble Shooting

    Voltage Level (1.5V) Check X201 Clock Check X201 Clock Replace X201 Replace X201 24MHz 24MHz Replace IC100 Flash Memory Copyright © LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...
  • Page 14 Repair Main B/D P601(#9,10) Check FFC Cable for damage Replace Cable or open conductors. Replace T-con Board or module Copyright © LG Electronics. Inc. All right reserved. - 14 - LGE Internal Use Only Only for training and service purposes...
  • Page 15 2. Check IC805 Output voltage(1.8V) Check Tuner(TU2602) I2C Signal Check IC101 SCL(R3735), SDA(R3736) Check Tuner(TU2603) Replace Tuner(TU2603) Data, CLK, SYN, VAL Recheck Copyright © LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...
  • Page 16 Replace R239,R237,R241 R239,R237,R241 C220,C218,C222 C220,C218,C222 IC101 has problem Wave form of C218 Wave form of C222 Wave form of C220 Copyright © LG Electronics. Inc. All right reserved. - 16 - LGE Internal Use Only Only for training and service purposes...
  • Page 17 Wave form of R4025(Vsync) Wave form of R4024(Hsync) Wave form of R228/C204 Wave form of R230/C206 Wave form of R232/C208 Copyright © LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...
  • Page 18 Check I2C Signal (JK501) Re download EDID data (#15, #16) Replace Scaler(IC101) Check HDCP Key (IC101) Copyright © LG Electronics. Inc. All right reserved. - 18 - LGE Internal Use Only Only for training and service purposes...
  • Page 19 Replace IC807(3.3V) Check Signal from IC700 Replace IC700 L700,L701, L706, L709 Check Signal from IC101 Replace IC101 SDA/SCL (R703/R214, R707/R213) Copyright © LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...

  • Page 20: Block Diagram

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

  • Page 21: Exploded View

    X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...
  • Page 22 IC102 H27U1G8F2CTR-BC NAND FLASH MEMORY <CHIP Config(LED_R/BUZZ)> +3.3V_Normal +3.3V_Normal Boot from SPI CS1N(EXT_FLASH) 1’b0 Boot from SPI_CS0N(INT_FLASH) 1’b1 NC_1 NC_29 IC101 NAND_1G_HYNIX_9103(DEV) NC_2 NC_28 EAN35669103 MSD804KKX PCM_A[0-7] <CHIP Config> NC_3 NC_27 (I2S_OUT_BCK,I2S_OUT_MCK,PAD_PWM1PAD_PWM0) PCM_D[0-7] S7LR-M_NON_MS10 NC_4 NC_26 AR101 PCM_D[0] B51_no_EJ : 4’b0000 Boot from 8051 with SPI flash SB51_WOS : 4’b0001...
  • Page 23 PIN NAME PIN NO. HIGH MODEL OPTION MEMORY OPTION MODEL_OPT_0 +1.15V_VDDC VDDC 1.15V +3.3V_Normal +2.5V_Normal +3.3V_Normal +1.15V_VDDC +3.3V_ST Model Model Memory Note MODEL_OPT_1 VDDC : 2026mA NON_AJ OPT 4 OPT 6 MODEL_OPT_2 NON_DVB_T2 DVB_T2 128M MODEL_OPT_3 M120 NON_M120 128M+128M MODEL_OPT_4 MIU0-128M MIU0-256M 256M...
  • Page 24 TP for EU_T/C TP for SCART TP for CI slot /PCM_REG PCM_D[0] PCM_A[8] CI_TS_CLK SCART1_MUTE /PCM_OE PCM_D[1] PCM_A[9] CI_TS_VAL SC1_ID /PCM_WE PCM_D[2] PCM_A[10] CI_TS_SYNC SC1_FB /PCM_IORD PCM_D[3] PCM_A[11] CI_TS_DATA[0] SC1_SOG_IN /PCM_IOWR PCM_D[4] PCM_A[12] CI_TS_DATA[1] DTV/MNT_VOUT /PCM_CE PCM_D[5] PCM_A[13] CI_TS_DATA[2] SCART1_Lout /PCM_IRQA PCM_D[6] PCM_A[14]...
  • Page 25 C405 R448 0.1uF 10uF R447 47K->470K R471 0.1uF USB_CTL R472 PC_AUDIO_DET RGB_DDC_SCL JP411 VA407 RGB_DDC_SDA R473 121128 R466 ESD improve 3AU04S-305-ZC-(LG) OPT->APPLY C401 C403 VA415 PC_R_IN USB_OCD R457 JK403 18pF 18pF PM_RXD C414 R465 JP404 VA419 R469 470K 220pF R458...
  • Page 26 HDMI HDMI For CEC +3.3V_ST R520 HDMI_CEC CEC_REMOTE_S7 5V_DET_HDMI_2 R501 Q501 MMBT3904(NXP) 5V_HDMI_2 +5V_Normal 5V_HDMI_2 VA505 R528 MMBD6100 D502 R509 SHIELD R529 VA512 Q505 HPD2 R521 R522 MMBT3904(NXP) 2.7K 2.7K DDC_SDA_2 VA511 DDC_SDA_2 DDC_SCL_2 DDC_SCL_2 R527 HDMI_ARC (OPT)HDMI2_ARC VA502 VA503 HDMI_CEC VA507 VA508...
  • Page 27 IR/LED and Control Module P601 +3.3V_ST 10031HR-30 P600 12507WR-12L KEY2 L600 R616 3.3K BLM18PG121SN1D JP600 KEY1 R617 KEY_SCL R614 3.3K KEY_SDA JP601 +3.3V_ST +3.3V_ST R615 JP602 R604 R610 1/10W 1/10W LVA_3P JP605 Red LED:7.8mA Amber LED:9.5mA LVA_3M 121118 R604,R610 JP604 2012->1608 LVA_CKP JP603...
  • Page 28 AUDIO AMP L700-*1 10.0uH +3.3V_AMP (OPT)Audio_Coil_TAIYO AMP_RST NRS6045T100MMGK C706 1000pF L706-*1 10.0uH (OPT)Audio_Coil_TAIYO NRS6045T100MMGK +19V_AMP_VCC L701-*1 R700 AUD_MASTER_CLK 10.0uH (OPT)Audio_Coil_TAIYO NRS6045T100MMGK C744 C712 C703 C715 C718 47uF 0.1uF 0.01uF 0.1uF 10uF L709-*1 C702 10.0uH 10uF (OPT)Audio_Coil_TAIYO C707 NRS6045T100MMGK 0.1uF D706 1N4148W R719 R715...
  • Page 29 R801 11.10.27 100K 111116 +3.3V_AMP PANEL POWER CONTROL EBK61011501(Diode) C818 ->EBK38029201(Rohm) R803 +3.3V_ST ->EBK61913601(NXP) 3.3V drive 0.1uF +12V_Normal C807 +12V_PANEL_POWER 0.1uF +3.3V_ST IC2602 [EP]GND MP1584EN +3.3V_Normal +19V +2.5V_Normal L802 10uH R875 C890 C895 JK800 JP801 4.7uF 0.1uF KJA-DC-1-0032 R889 111116 IC810 Q803 10K->22K...
  • Page 30 AVDD_DDR0 AVDD_DDR0 AVDD_DDR0 AVDD_DDR0 121118 Change from bead to 0 ohm for Cost down +1.5V_DDR AVDD_DDR0 R1206 A-MVREFDQ B-MVREFDQ A-MVREFCA B-MVREFCA CLose to Saturn7M IC CLose to Saturn7M IC CLose to DDR3 CLose to DDR3 EAN61836301 EAN61836301 IC1202 IC1201 K4B1G1646G-BCK0 IC101 K4B1G1646G-BCK0 MSD804KKX...
  • Page 31 * Option name of this page : CI_SLOT (because of Hong Kong) CI Region CI SLOT +5V_CI_ON CI_DATA[0-7] CI TS INPUT AR1905 FE_TS_DATA[7] +5V_Normal CI_MDI[7] FE_TS_DATA[6] C1906 CI_MDI[6] 10uF FE_TS_DATA[5] CI_MDI[5] P1900 FE_TS_DATA[4] R1903 CI_MDI[4] EAG41860102 10067972-000LF CI_SLOT AR1906 /CI_CD1 FE_TS_DATA[3] C1903 CI_MDI[3]...
  • Page 32 GLOBAL tuner block except T2/S2 FE_AGC_SPEED_CTL IF_AGC_SEL FE_BOOSTER_CTL LNA2_CTL R3741-*3 2.2K (BR)TU_IIC_2.2K RF_SWITCH_CTL R3740-*3 Pull-up can’t be applied 2.2K (BR)TU_IIC_2.2K because of MODEL_OPT_2 TU3704 TU3700 R3741-*2 TU3703 TU3703-*1 TDSS-G501D(B) 1.2K TDSN-T701F (US)TU_IIC_ATSC_1.2K TDSN-B601F(B) TDSN-B601F(C) (EU/ASIA)SI2156_DVB_1INPUT_H R3740-*2 (BR)SI2178_BR_2INPUT_H (BR_CKD)SI2178_BR_2INPUT_H (OPT)SI2178_TW_LNA_2INPUT_H 1.2K (US)TU_IIC_ATSC_1.2K +3.3V_TU +3.3V_TU...
  • Page 33 SCART / COMPONENT&CVBS SCART AMP COMPONENT&CVBS COMP_NON_ADC_FILTER L2807-*1 (OPT)COMP_ADC_FILTER_L L2807 CM2012FR10KT COMP_Y+/AV_CVBS_IN 121017 ZD2801 (OPT)COMP_ADC_FILTER (OPT)COMP_ADC_FILTER +3.3V_Normal Change 5.6B C2829 R2822 C2830 47pF 47pF ZD2800 5.6B +5V_USB R2837 R2838 AV_CVBS_DET C2813 D2817 0.1uF 5.6V COMP_NON_ADC_FILTER L2806-*1 C2817 0.1uF (OPT)COMP_ADC_FILTER_L IC2800 L2806 AZ4580MTR-E1 121017...
  • Page 34 TOTAL LED DRIVER BLOCK REDUCE INDUCTOR TEMP ISSUE +19V L1101 L1102 D1103 L2901 D2901 VOUT#1=53.2V 33uH 33uH 33uH BR210 UF3D(SUZHOU GRANDE) 100V C2901 C2902 C2903 10uF C2912 C2913 C2914 C2915 47uF C2911 0.1uF C2916 C2917 33uF 100V 100V 100V 100V 100V 100V 100V...

This manual is also suitable for:

29mn33d-psp