LG Electronics LG - Life's Good Flat Panel Television 55LA625C-ZA user manual

User manual for the device LG Electronics LG - Life's Good Flat Panel Television 55LA625C-ZA

Device: LG Electronics LG - Life's Good Flat Panel Television 55LA625C-ZA
Size: 6,34 MB
Date of adding : 2013-05-01 16:29:57
Number of pages: 38
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LG Electronics LG - Life's Good Flat Panel Television 55LA625C-ZA user manual
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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 : LD3AC
MODEL: 55LA625C 55LA625C-ZA
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL67800113(1309-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 ............................................................. 10 TRO

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. 1. Application range 3. Test method This specification is applied to the LED TV used LD3AC 1) Performance: LGE TV test method followed chassis. 2) Demanded other specification - Safety : CE, IEC specification - EMC : CE, IEC 2. Requirement for Test Each part is tested as below without special appointment. 1) Temperature: 25 °C ± 5 °C(77 °F ± 9 °F), CST: 40 °C ± 5 °C 2) Relative Humidity: 65 %

Summary of the content on the page No. 7

No. Item Specification Remarks ► 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 Analog : Upper Heterodyne - Guard Interval(Bitrate_Mbit/s) 4 Receiving system Digital : COFDM, QAM 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, 5/6 16-QAM : 1/2, 2/5, 2/3, 3/4, 5/6 64-QAM : 1/2, 2

Summary of the content on the page No. 8

5. Video resolutions (2D) 5.1. Component Input (Y, CB/PB, CR/PR) No. Resolution H-freq(kHz) V-freq(Hz) Pixel clock(MHz) Proposed 1 720*576 15.625 50.00 13.5 SDTV ,DVD 576I 2 720*480 15.73 60.00 13.5135 SDTV ,DVD 480I 3 720*480 15.73 59.94 13.50 SDTV ,DVD 480I 4 720*576 31.25 50.00 27.00 SDTV 576P 5 720*480 31.50 60.00 27.027 SDTV 480P 6 720*480 31.47 59.94 27.00 SDTV 480P 7 1280*720 37.50 50.00 74.25 HDTV 720P 8 1280*720 45.00 60.00 74.25 HDTV 720P 9 1280*720 44.96 59.94 74.176 HDTV 720P 10 1920

Summary of the content on the page No. 9

5.3. HDMI Input(PC/DTV) No. Resolution H-freq(kHz) V-freq.(Hz) Pixel clock(MHz) Proposed Remark PC(DVI) DDC 1 640*350 31.468 70.09 25.17 EGA X 2 720*400 31.469 70.08 28.32 DOS O 3 640*480 31.469 59.94 25.17 VESA(VGA) O 4 800*600 37.879 60.31 40.00 VESA(SVGA) O 5 1024*768 48.363 60.00 65.00 VESA(XGA) O 6 1152*864 54.348 60.053 80.00 VESA O 7 1360*768 47.712 60.015 85.50 VESA (WXGA) O 8 1280*1024 63.981 60.020 108.0 VESA (SXGA) O 9 1920*1080 67.50 60.00 148.5 HDTV 1080P O DTV 1 720*480 31.47 59.94

Summary of the content on the page No. 10

ADJUSTMENT INSTRUCTION (4) Click "Connect" tab. If "Can't" is displayed, check connection 1. Application Range 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. (4) Input signal Un

Summary of the content on the page No. 11

* After downloading, have to adjust Tool Option again. 3.3. EDID data (1) Push "IN-START" key in service remote control. (1) HD RGB EDID data (2) Select "Tool Option 1" and push "OK" key. 0 1 2 3 4 5 6 7 8 9 A B C D E F (3) Punch in the number. (Each model has their number) 00 00 FF FF FF FF FF FF 00 1E 6D a b 10 c 01 03 68 A0 5A 78 0A EE 91 A3 54 4C 99 26 (4) Completed selecting Tool option. 20 0F 50 54 A1 08 00 71 40 61 40 45 40 31 40 01 01 30 01 01 01 01 01 01 1B 21 50 A0 51 00 1E 30 48 88 40

Summary of the content on the page No. 12

(5) Detail EDID Options are below 4. Total Assembly line process a. Product ID 4.1. White Balance adjustment MODEL NAME HEX EDID Table DDC Function ▪ W/B Equipment condition FHD/HD Model 0001 01 00 Analog/Digital CA210 : LED -> CH14, Test signal: Inner pattern(80IRE) ▪ Above 5 minutes H/run in the inner pattern. (“power on” key b. Serial No: Controlled on production line. of adjust remote control) c. Month, Year: Controlled on production line: ▪ If it is executed W/B adjustment in 2~3 minute

Summary of the content on the page No. 13

* Auto-control interface and directions 5. GND and HI-POT Test (1) Adjust in the place where the influx of light like floodlight 5.1. HI-POT auto-check preparation around is blocked. (illumination is less than 10 lux). - Check the POWER cable and SIGNAL cable insertion condition (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°). 5.2. HI-POT auto-check (3) Aging time

Summary of the content on the page No. 14

6.3. Method & notice 7. CI+ key download (1) Serial number D/L is using of scan equipment. 7.1. Communication Prot connection (2) Setting 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. * Manual Download(Model Name and Serial Number) If the TV set is downloaded by OTA or Service man, sometimes Connection : PCBA (USB Port) → USB to Serial Adapter

Summary of the content on the page No. 15

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) C heck 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) Connect each other RS232C port on the Commercial Check JIG. (2)

Summary of the content on the page No. 16

TROUBLE SHOOTING GUIDE 1. Check the booting Voltage

Summary of the content on the page No. 17

3. Analog TV Video 4. AV Video

Summary of the content on the page No. 18

5. RGB Video 6. HDMI Video

Summary of the content on the page No. 19

7. Audio of All iput

Summary of the content on the page No. 20

9. AV Audio 10. RGB Audio Copyright © LG Electronics. Inc. All rights reserved. LGE Internal Use Only - 20 - Only for training and service purposes


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