Internal Use Only North/Latin America Europe/Africa Asia/Oceania http://aic.lgservice.com http://eic.lgservice.com http://biz.lgservice.com LED TV SERVICE MANUAL CHASSIS : LD3AC MODEL: 32LP360H/361H 32LN548C/549C 32LP360H/361H-ZA 32LN548C/549C-ZA CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CONTENTS CONTENTS . ............................................................................................. 2 SAFETY PRECAUTIONS ......................................................................... 3 SERVICING PRECAUTIONS ................................................................... 4 SPECIFICATION ....................................................................................... 6 ADJUSTMENT INSTRUCTION ..............................................................
SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical 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 Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer.
SERVICING PRECAUTIONS 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. NOTE: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication, always follow the safety precautions. Remember: Safety First. General Servicing Precautions 1.
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. When holes are the slotted type, the following technique should be used to remove and replace the IC. When working with boards using the familiar round hole, use the standard technique as outlined in paragraphs 5 and 6 above. Removal 1.
SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application range This specification is applied to the LED TV used LD3AC chassis. 3. Test method 2. Requirement for Test 1) Performance: LGE TV test method followed 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC Each part is tested as below without special appointment.
No.
5. Video resolutions (2D) 5.1. Component Input (Y, CB/PB, CR/PR) No. 1 Resolution 720*576 H-freq(kHz) 15.625 V-freq(Hz) 50.00 13.5 Proposed SDTV ,DVD 576I 2 720*480 15.73 60.00 13.5135 SDTV ,DVD 480I 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 720*480 720*576 720*480 720*480 1280*720 1280*720 1280*720 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 1920*1080 15.73 31.25 31.50 31.47 37.50 45.00 44.96 28.125 33.75 33.72 56.25 67.50 67.432 27.00 26.97 33.
5.3. HDMI Input(PC/DTV) No. PC(DVI) 1 2 3 4 5 6 7 8 9 Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) 640*350 720*400 640*480 800*600 1024*768 1152*864 1360*768 1280*1024 1920*1080 31.468 31.469 31.469 37.879 48.363 54.348 47.712 63.981 67.50 70.09 70.08 59.94 60.31 60.00 60.053 60.015 60.020 60.00 25.17 28.32 25.17 40.00 65.00 80.00 85.50 108.0 148.5 Proposed DDC EGA DOS VESA(VGA) VESA(SVGA) VESA(XGA) VESA VESA (WXGA) VESA (SXGA) HDTV 1080P 1 720*480 31.47 59.94 27.
ADJUSTMENT INSTRUCTION 1. Application Range (4) Click "Connect" tab. If "Can't" is displayed, check connection between computer, jig, and set. This specification sheet is applied to all of the LED TV with LD3AC chassis. (2) (3) 2. Designation (1) The adjustment is according to the order which is designated and which must be followed, according to the plan which can be changed only on agreeing. (2) Power adjustment : Free Voltage. (3) Magnetic Field Condition: Nil.
3.3. EDID data * After downloading, have to adjust Tool Option again. (1) Push "IN-START" key in service remote control. (2) Select "Tool Option 1" and push "OK" key. (3) Punch in the number. (Each model has their number) (4) Completed selecting Tool option. (1) HD RGB EDID data 3.1. ADC Process * I f ADC processes as OTP, There is no need to proceed internal ADC. - Enter Service Mode by pushing "ADJ" key, - Enter Internal ADC mode by pushing "►" key at "7. ADC Calibration".
4. Total Assembly line process (5) Detail EDID Options are below a. Product ID MODEL NAME HEX EDID Table DDC Function FHD/HD Model Analog/Digital 0001 01 00 4.1. White Balance adjustment ▪ W/B Equipment condition CA210 : LED -> CH14, Test signal: Inner pattern(80IRE) ▪ Above 5 minutes H/run in the inner pattern. (“power on” key of adjust remote control) ▪ If it is executed W/B adjustment in 2~3 minutes H/run, it is adjusted by Target data. (For OS LED / Direct LED module) b.
* Auto-control interface and directions (1) Adjust in the place where the influx of light like floodlight around is blocked. (illumination is less than 10 lux). (2) Adhere closely the Color analyzer(CA210) to the module less than 10 cm distance, keep it with the surface of the Module and Color analyzer's prove vertically.(80° ~ 100°). (3) Aging time - After aging start, keep the power on (no suspension of power supply) and heat-run over 5 minutes.
6.3. Method & notice (1) Serial number D/L is using of scan equipment. (2) S etting of scan equipment operated by Manufacturing Technology Group. (3) Serial number D/L must be conformed when it is produced in production line, because serial number D/L is mandatory by D-book 4.0. 7. CI+ key download 7.1. Communication Prot connection * Manual Download(Model Name and Serial Number) If the TV set is downloaded by OTA or Service man, sometimes model name or serial number is initialized.
8. Check Commercial Features. 8.1. External speaker(8OHM, 1W, Single-End) ■ External speaker and Oscilloscope ■ Power only mode (1) Connect external speaker(8 ohm) to speaker out port with phone jack on TV side as below. (2) Check the Max. speaker output is 1W or not. Sine wave with 1KHz will be displayed. 8.2. IR OUT < Equipment & Condition > ■ Simple Jig (commercial check JIG) ■ Power only mode (1) C onnect each other RS232C port on the Commercial Check JIG.
TROUBLE SHOOTING GUIDE 1.
3. Analog TV Video ʹΙΖΔΜ͑ΥΙΖ͑ͷ͑ΔΒΓΝΖ͑ΒΟΕ͑ͷ͑ΤΚΘΟΒΝ͑ Ί ΖΤ ʹΙΖΔΜ͑ΥΙΖ͑΅ΦΟΖΣ͑ͤͤ͟· ͑ ͬ͑ͽͤͨͤ͡ ͿΠ ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ͽͤͨͤ͡ ͿΠ ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑ͺʹͤͨͤ͡ ͿΠ ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑΅ΦΟΖΣ ͿΠ ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑;ΤΥΒΣ͙ͺʹ͚͢͢͡ Σ͑;ΒΚΟ͑ΓΠΒΣΕ Ί ΖΤ ʹΙΖΔΜ͑ΥΙΖ͑΅ΦΟΖΣ͑ͩ͢͟· ͺʹͤͨͤ͑ͣ͡ΡΚΟ͑ͫ͑ͩ͢͟· Ί ΖΤ ʹΙΖΔΜ͑ΥΙΖ͑ʹ· ͳ΄͑ΤΚΘΟΒΝ͑ ΅Άͤͨͥ͑ͩ͡ΡΚΟ Ί ΖΤ ʹΙΖΔΜ͑ΥΙΖ͑ͽ· ͵΄͑ΠΦΥΡΦΥ͑ΤΚΘΟΒΝ͑ΠΗ͑;ΤΥΒΣ͑ͺʹ 4.
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7.
9. AV Audio ʹΙΖΔΜ͑ΥΙΖ͑Ͳ·͑ΔΒΓΝΖ͑ΚΤ͑ΕΖΗΖΔΥΚΧΖ Ί ΖΤ ʹΙΖΔΜ͑ΥΙΖ͑ΤΚΘΟΒΝ͑ΠΗ͑ͻͼͧ͢͢͡ ͧͩͥ͑ͧͩͦ͢͢͝ ͿΠ ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑Ͳ·͑ͻΒΔΜ ͿΠ ͶΩΔΙΒΟΘΖ͑ΥΙΖ͑Ͳ·͑ͻΒΔΜ Ί ΖΤ ͺΞΡΝΖΞΖΟΥ͑ΥΙΖ͑Ͳ͑ͩ͟גΦΕΚΠ͑ΠΗ͑ΒΝΝ͑ΚΟΡΦΥ͑ד Η͑;ΒΝΗΦΟΔΥΚΠΟ͑ΘΦΚΕΖ 10. RGB Audio ʹΙΖΔΜ͑ΥΙΖ͑ʹΠΞΡΠΟΖΟΥ͑ΔΒΓΝΖ͑ΚΤ͑ΕΖΗΖΔΥΚΧΖ Ί ΖΤ ʹΙΖΔΜ͑ΥΙΖ͑ΤΚΘΟΒΝ͑ΠΗ͑ͻͼͣ͢͢͡ Ί ΖΤ ͺΞΡΝΖΞΖΟΥ͑ΥΙΖ͑Ͳ͑ͩ͟גΦΕΚΠ͑ΠΗ͑ΒΝΝ͑ΚΟΡΦΥ͑ד Η͑;ΒΝΗΦΟΔΥΚΠΟ͑ΘΦΚΕΖ Copyright © LG Electronics. Inc. All rights reserved.
Copyright © LG Electronics. Inc. All rights reserved. Only for training and service purposes - 21 - EXT Speaker Speaker USB SCART COM P RGB CI Digital An alog AM P Headphone SPIDIF PC/COM P L/R CI Sub Amp FE_TS_Parallel DVB- T/C Tuner S7LR2 (LGE211A-T8) TV Link 650M 74.
EXPLODED VIEW IMPORTANT SAFETY NOTICE 200T * Stand Base+Body * Set + Stand A10 A2 300 301 500 900 910 200 Only LGD Module 122 123 530 LV1 540 120 521 510 400 Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and EXPLODED VIEW.
+3.3V_Normal /PF_CE0 NC_7 NC_8 C101 0.
MODEL OPTION PIN NO. HD PHM_OFF PHM_ON +1.10V_VDDC ASIA C293-*1 68pF 0.1uF READY 0.1uF READY MODEL_OPT_5 C255 A8 MODEL_OPT_4 C248 MODEL_OPT_7 MODEL_OPT_3 0.1uF READEY C235 DVB_S READY 0.1uF NON_DVB_S B8 0.1uF T24 MODEL_OPT_6 MODEL_OPT_2 C283 MODEL_OPT_5 MODEL_OPT_0 MODEL_OPT_1 RF_SWITCH_CTL C280 3D OLED 10uF NON_3D NON_OLED 0.1uF T25 U23 C276 MODEL_OPT_3 MODEL_OPT_4 NON_DVB_T2 DVB_T2 C277 MODEL_OPT_2 +1.10V_VDDC VDDC 1.
PANEL_POWER FROM LIPS & POWER B/D R405-*2 R405-*1 5.1K 3K 3K_PANEL_DISCHARGE 5.1K_PANEL_DISCHARGE +12V ST_3.5V--> 3.375V --> 3.46V 24V-->3.78V --> 3.92V (3.79V) Power_DET 12V -->3.58V --> 3.82V (3.68V) RESET_IC_SOC_RESET L412 SS C438 0.1uF 16V C442 10uF 16V DELETE S R439 33K SAMWHA +3.3V_Normal 3 +3.5V_ST R406 4.7K C Q401 MMBT3904(NXP) E 0.1uF MLB-201209-0120P-N2 PDIM#1 5 6 PDIM#2 GND 7 8 GND 24V 9 10 24V GND 11 12 GND 12V 13 14 12V 12V 15 16 N.
AMP_RESET R521 10K +3.3V_Normal C516 1000pF 50V AVDD_PLL 2 DVDD_PLL 3 LF 5 GND_1 6 E PVDD1_2 PVDD1_3 OUT1A_1 OUT1A_2 BST1A /RESET AD 37 38 39 40 41 42 43 44 45 33 BST1B 32 VDR1 31 VCC_5 L506 10.0uH C537 0.1uF 50V R516 4.7K C535 0.47uF 50V SPEAKER_L C538 0.1uF 50V R513 12 R517 4.
CONTROL IR & LED +3.5V_ST R602 10K 1% R603 10K 1% CONTROL_NO_FILTER R614 0 CONTROL_FILTER L601 BLM18PG121SN1D KEY1 L602 BLM18PG121SN1D KEY2 P600 12507WR-08L CONTROL_FILTER CONTROL_FILTER CONTROL_FILTER C609 0.1uF C608 0.1uF R615 0 1 CONTROL_NO_FILTER 2 +3.5V_ST 3 L600 BLM18PG121SN1D 4 C602 0.1uF 16V C603 1000pF 50V R610 1.8K LED_R 5 6 +3.5V_ST 7 8 R607 47K R604 22 9 IR C604 100pF 50V D603 5.6V IR OUT +3.5V_ST IR_OUT R605 22 IR_OUT R606 10K +3.
LVDS [51Pin LVDS Connector] (For FHD 60Hz) FOR FHD REVERSE(10bit) [30Pin LVDS Connector] (For HD 60Hz_Normal) Change in S7LR FHD P703 FI-RE51S-HF-J-R1500 MIRROR Pol-change HD RXA4+ RXA0+ RXA0- RXA4- RXA0- RXA0+ RXA3+ RXA1+ RXA1- RXA3- RXA1- RXA1+ 1 RXACK+ RXA2+ RXA2- 2 RXACK- RXA2- RXA2+ 3 RXA2+ RXACK+ RXACK- 4 RXA2- RXACK- RXACK+ 5 RXA1+ RXA3+ RXA3- 6 RXA3+ RXA1- RXA3- RXA3+ 7 RXA3- RXA0+ RXA4+ RXA4- 8 RXA0- RXA4- RXA4+ 9 RXACK+ 10 RXACK- P705 1 FF
HDMI EEPROM HDMI_1 5V_HDMI_1 5V_DET_HDMI_1 19 DDC_SCL_1 D823 ESD_HDMI D804 ESD_HDMI R884 R888 2.7K 2.7K 6 4 3 2 1 2.
RS232C 10 5 9 IR_OUT 4 8 R1001 100 JP1121 R1002 100 JP1122 3 +3.5V_ST 7 2 D1007 CDS3C30GTH 30V DELETE 6 D1008 CDS3C30GTH 30V DELETE 1 C1001 0 . 3 3 u F SPG09-DB-009 IC1000 C1006 0.1uF MAX3232CDR C1+ C1002 0.1uF C1003 0.1uF V+ C1- C2+ C1004 0.1uF C2- VC1005 0 . 1 u FDOUT2 RIN2 1 16 2 15 3 14 4 13 5 12 6 11 7 10 8 9 JK1001 +3.
RGB PC +5V_Normal D1115 ENKMC2838-T112 A1 HEADPHONE C A2 HP_LOUT B E Q1104 MMBT3904(NXP) CHEAD_PHONE +3.3V_Normal R1155 1K GND 5 L 4 DETECT HP_DET 3 HEAD_PHONE R E RGB_DDC_SDA C1127 18pF 50V C1128 18pF 50V R1175 22 R1162 22 B Q1103 MMBT3904(NXP) C HEAD_PHONE R1129 3.
A3 N1 N9 R1 R9 VDD_3 A11 VDD_4 A12/BC VDD_5 A13 L7 VDD_6 VDD_7 A8 C1 C9 BA0 D2 E9 F1 H2 H9 J1 J9 L1 L9 A-MA14 T7 CK CKE K7 K9 VDDQ_5 VDDQ_6 ODT VDDQ_8 RAS VDDQ_9 CAS B3 E1 G8 J2 J8 M1 M9 P1 P9 T1 T9 B9 D1 D8 E2 E8 F9 G1 G9 A-MRASB A-MCASB A-MWEB T2 RESET NC_4 AVDD_DDR0 R1231 10K DQSU VSS_2 DQSU VSS_4 DML VSS_5 DMU DQL0 VSS_8 DQL1 VSS_9 DQL2 VSS_10 DQL3 VSS_11 DQL4 VSS_12 DQL5 VSSQ_2 DQU0 VSSQ_3 DQU1 VSSQ_4 DQU2 VSSQ_5 DQU3 VSSQ_6 DQU4 VSSQ_7 DQU5 VSS
+3.5V_ST S_FLASH_MAIN_MACRONIX R1404 4.7K OPT +3.5V_ST +3.5V_ST IC1401 MX25L8006EM2I-12G CS# /SPI_CS 1 8 2 7 3 6 4 5 C1401 VCC 0.1uF R1403 10K DELETE SO/SIO1 SPI_SDO WP# /FLASH_WP GND HOLD# SCLK SPI_SCK SI/SIO0 R1405 33 SPI_SDI S_FLASH_MAIN_WINBOND IC1401-*1 W25Q80BVSSIG CS DO[IO1] %WP[IO2] GND THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
+12V IC1601 AZ4580MTR-E1 EU_OPT R1600 2.2K OUT1 DTV/MNT_L_OUT EU_OPT R1603 33K EU_OPT C1600DELETE 10uF R1601 16V 470K 1 IN1- 2 IN1+ EU_OPT R1615 10K EU_OPT C1606 33pF EU_OPT VEE EU_OPT C1642 0.1uF 50V 8 VCC 7 OUT2 3 6 IN2- 4 5 IN2+ EU_OPT R1625 2.2K EU_OPT R1619 10K EU_OPT R1612 5.6K EU_OPT C1605 10uF 16V DELETE R1624 470K EU_OPT C1602 33pF EU_OPT R1620 5.
EXT_SPEAKER_AMP SPEAKER OUT JACK +12V L1802 EXT_SPK EXT_SPK L1803 BLM18PG121SN1D JK1800 PEJ034-01 EXT_SPK C1806 0.1uF 16V EXT_SPK EXT_SPK R1803 100 PVCCL_1 R1802 10K EXT_SPK SUB_AMP_MUTE C B OPT OPT C1818 100pF 50V IC1800 TPA3124D2PWPR +3.5V_ST R1801 10K SD OPT Q1800 MMBT3904(NXP) PVCCL_2 E MUTE C1800 1uF 10V LIN EXT_AMP_L 1 2 3 4 24 23 22 21 5 20 6 19 7 18 PGNDL_2 EXT_SPK C1816 100uF 25V PGNDL_1 EXT_SPK L1804 22.0uH LOUT BSL C1807 0.
* Option name of this page : CI_SLOT (because of Hong Kong) CI Region CI SLOT +5V_CI_ON CI TS INPUT CI_DATA[0-7] CI_DATA[0-7] +5V_Normal 10K CI_SLOT EAG41860102 AR1901 100 33 CI_TS_DATA[4] CI_TS_DATA[5] 36 2 37 3 38 4 39 5 40 6 41 7 42 8 43 9 CI_IORD 44 10 CI_IOWR 45 11 CI_TS_DATA[6] CI_TS_DATA[7] R1905 10K 46 12 CI_MDI[0] 47 13 CI_MDI[1] 48 14 CI_MDI[2] 49 15 CI_MDI[3] 50 16 51 17 52 18 CI_MDI[4] 53 19 CI_MDI[5] 54 20 CI_MDI[6] 55 21 CI_MDI[7]
GP4R_GLOBAL_TUNER_BLOCK ERROR & VALID PIN RF_SW_OPT R2603 0 RF_SW_OPT C2603 0.1uF 16V 2 3 4 5 6 7 8 9 10 11 NC_1 1 RESET 3 SDA 4 +3.3V 5 SIF +1.8V NC_3 10 DIF[N] NC_4 11 NC_5 14 GND 15 ERROR 16 VALID 18 D1 21 D2 22 23 2 24 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 SHIELD RESET SCL B1 B C 28 TU_CVBS R2621 0 E Q2601 MMBT3906(NXP) B C should be guarded by ground HALF_NIM/EU_NON_T2 R2602 0 IF_P_MSTAR +3.