LG Electronics LG - Life's Good Flat Panel Television 26LN46**-Z* user manual

User manual for the device LG Electronics LG - Life's Good Flat Panel Television 26LN46**-Z*

Device: LG Electronics LG - Life's Good Flat Panel Television 26LN46**-Z*
Size: 7,73 MB
Date of adding : 2014-02-07 16:28:14
Number of pages: 28
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LG Electronics LG - Life's Good Flat Panel Television 26LN46**-Z* user manual
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Abstracts of contents
Summary of the content on the page No. 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 : LD33P
MODEL : 26LN46** 26LN46**-Z*
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67782201 (1304-REV00) Printed in Korea

Summary of the content on the page No. 2

CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ........................................................................ 3 SERVICING PRECAUTIONS .................................................................... 4 SPECIFICATION ....................................................................................... 6 ADJUSTMENT INSTRUCTION ................................................................ 9 TR

Summary of the content on the page No. 3

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. General Guidance Leakage Current Hot Check

Summary of the content on the page No. 4

SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service 2. After removing an electrical assembly equipped with ES manual and its supplements and addenda, read and follow the devices, place the assembly on a conductive surface such as SAFETY PRECAUTIONS on page 3 of this publication. aluminum foil, to prevent electrostatic charge buildup or expo- NOTE: If unforeseen circumstances create conflict between the sure of the assembly. following servicing precautions and any

Summary of the content on the page No. 5

IC Remove/Replacement 3. Solder the connections. Some chassis circuit boards have slotted holes (oblong) through CAUTION: Maintain original spacing between the replaced which the IC leads are inserted and then bent flat against the cir- component and adjacent components and the circuit board to cuit foil. When holes are the slotted type, the following technique prevent excessive component temperatures. should be used to remove and replace the IC. When working with boards using the familiar r

Summary of the content on the page No. 6

SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 3) Power Voltage 1. Application range : Standard input voltage (AC 100-240 V~, 50/60 Hz) - This specification is applied to the LED TV used LD33P * Standard Voltage of each products is marked by models. chassis. 4) Specification and performance of each parts are followed - NetCast4.0 MTK, Model List(apply this Product Specification) each drawing and specification by part number in T/C/S2 T2/

Summary of the content on the page No. 7

No. Item Specification Remarks 1) PAL-BG DVB-S: Satellite 2) PAL-DK 3) PAL-I/I’ 4) SECAM L/L’, DK, BG, I 2 Broadcasting system 5) DVB-T 6) DVB-C 7) DVB-T2 8) DVB-S ► DVB-T - Guard Interval(Bitrate_Mbit/s) 1/4, 1/8, 1/16, 1/32 - Modulation : Code Rate QPSK : 1/2, 2/3, 3/4, 5/6, 7/8 16-QAM : 1/2, 2/3, 3/4, 5/6, 7/8 64-QAM : 1/2, 2/3, 3/4, 5/6, 7/8 ► DVB-T2 - Guard Interval(Bitrate_Mbit/s) 1/4, 1/8, 1/16, 1/32, 1/128, 19/128, 19/256, - Modulation : Code Rate QPSK : 1/2, 2/5, 2/3, 3/4

Summary of the content on the page No. 8

5. Component Video Input (Y, Cb/Pb, Cr/Pr) No. Resolution H-freq(kHz) V-freq(Hz) Porposed 1 720×480 15.73 60.00 SDTV, DVD 480i 2 720×480 15.63 59.94 SDTV, DVD 480i 3 720×480 31.47 59.94 480p 4 720×480 31.50 60.00 480p 5 720×576 15.625 50.00 SDTV, DVD 625 Line 6 720×576 31.25 50.00 HDTV 576p 7 1280×720 45.00 50.00 HDTV 720p 8 1280×720 44.96 59.94 HDTV 720p 9 1280×720 45.00 60.00 HDTV 720p 10 1920×1080 31.25 50.00 HDTV 1080i 11 1920×1080 33.75 60.00 HDTV 1080i 12 1920×1080 33.72 59.94 HDTV 1080i 1

Summary of the content on the page No. 9

ADJUSTMENT INSTRUCTION 3.2. LAN Inspection 1. Application Range This specification sheet is applied to all of the LED TV with 3.2.1. Equipment & Condition LD33P chassis. ▪ Each other connection to LAN Port of IP Hub and Jig 2. Designation (1) B ecause this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test instrument. (2) Adjustment must be done in the correct order. (3) The adjustment must be performed

Summary of the content on the page No. 10

3.2.3. WIDEVINE key Inspection 3.4. Model name & Serial number Download - Confirm key input data at the "IN START" MENU Mode. 3.4.1. Model name & Serial number D/L ▪ Press "P-ONLY" key of service remote control. (Baud rate : 115200 bps) ▪ Connect RS-232C Signal to USB Cable to USB. ▪ Write Serial number by use USB port. ▪ Must check the serial number at Instart menu. 3.4.2. Method & notice (1) Serial number D/L is using of scan equipment. (2) Setting of scan equipment operated by Manufacturing

Summary of the content on the page No. 11

3.5.1. Check the method of CI+ Key value 4. Manual Adjustment (1) Check the method on Instart menu * A DC adjustment is not needed because of OTP(Auto ADC (2) Check the method of RS232C Command adjustment) 1) Into the main ass’y mode(RS232: aa 00 00) CMD 1 CMD 2 Data 0 4.1. EDID DATA A A 0 0 4.1.1. HDMI1 2) Check the key download for transmitted command (RS232: ci 00 10) CMD 1 CMD 2 Data 0 C I 1 0 3) Result value - Normally status for download : OKx - Abnormally status for download : NGx 3

Summary of the content on the page No. 12

4.2. White Balance Adjustment 4.3. Magic Motion Remote control test - Dogle Ready 4.2.1. Overview (1) Equipment : RF Remote control for test, IR-KEY-Code ▪ RGB Gains are fixed data for each model. Remote control for test ▪ Insert RS-232C Jack which is connected with PC for White (2) You must confirm the battery power of RF-Remote control → Total Assembly line should be check whether the color before test(recommend that change the battery per every lot) coordinate(x, y) data refer to bel

Summary of the content on the page No. 13

4.5. HDMI ARC Function Inspection 4.6. Wi-Fi Test (1) Test equipment Step 1) Turn on TV - Optic Receiver Speaker Step 2) Select Network Connection option in Network Menu. - MSHG-600 (SW: 1220 ↑) - HDMI Cable (for 1.4 version) (2) Test method 1) Insert the HDMI Cable to the HDMI ARC port from the master equipment (HDMI1) Step 3) Select Start Connection button in Network Connection. 2) Check the sound from the TV Set 3) Check the Sound from the Speaker or using AV & Optic Step 4) If the system

Summary of the content on the page No. 14

4.8. Option selection per country 5. Audio 4.8.1. Overview No. Item Min Typ Max Unit Remark - Option selection is only done for models in Non-EU Audio practical 9 10 12 W EQ Off max Output, L/R AVL Off 1. (Distortion=10% Clear Voice Off 8.10 10.8 Vrms 4.8.2. Method max Output) (1) Press ADJ key on the Adj. R/C, then select Country Group EQ Off Meun Speaker (8Ω 2. 9 10 12 W AVL Off Impedance) (2) Depending on destination, select Country Group Code 04 Clear Voice Off or Country Group EU then

Summary of the content on the page No. 15

TROUBLE SHOOTING GUIDE IC2407 IC2407 P2400 PIN #12 Check STEP-UP DC-DC conv. Check backlight 24V IC2406 (P2400 #1~#5) IC2408 P102(#27~#30) 12V IC2408 12V output P102(#15,#16) Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 15 - Only for training and service purposes

Summary of the content on the page No. 16

1. Check tuner(TU6401 #5 #32 ) Power 3.3V Replace IC2405 2. Check IC 2405 output voltage 1. Check tuner(TU6401 #7)Power 1.8V Replace IC6403 2. Check IC6403 output voltage(1.8V) Check Tuner(TU6401) I2C signal #3 # 4 #34 #35 Check Tuner(TU6406) Replace TU6406 DATA, CLK, SYN, VAL And recheck Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 16 - Only for training and service purposes

Summary of the content on the page No. 17

Check ADAPTER output or replace ADAPTER Check signal from IC8101 P5400 output #1 #2 #3 #4 Check signal from IC105 SCL / SDA R5402 / R5403 Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 17 - Only for training and service purposes

Summary of the content on the page No. 18

BLOCK DIAGRAM Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 18 - Only for training and service purposes

Summary of the content on the page No. 19

EXPLODED VIEW 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 X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. Copyright © LG Electronics. In

Summary of the content on the page No. 20

20120813 LCD-TV EAX65085301 VDD3V3 IC105 LGE2122[A2_M13] LVDS [31Pin LVDS OUTPUT Connector] P102 20120813 L/DIM0_MOSI Delete needless port 10031HR-30 L/DIM0_SCLK AK10 AH15 L/DIM0_VS SOC_TX JTCK U0TX AK11 AH14 HEAT SINK SMD GASKET SOC_RX JTDI U0RX AL9 1 X-TAL JTDO 20120813 CJ.LIM AJ11 AH13 JTMS U1TX 2 LCD-TV Close to eMMC Flash AJ12 AG13 APPLY->OPT JTRST U1RX (IC8100) 20120813 LCD-TV X100 3 27MHz 20120813 LCD-TV AH11 D24 X-TAL_1 GND_2 4 OSDA0 OSDA0 POWE EMMC_CMD MT5398_XTAL_IN 1 4 AH10 B25 DVB_1


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