Page 2 - CONTENTS
- 2 - CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ..........................................................................3 SPECIFICATION .........................................................................
Page 3 - SAFETY PRECAUTIONS; General Guidance; Before returning the receiver to the customer,; Leakage Current Cold Check(Antenna Cold Check); Leakage Current Hot Check circuit; IMPORTANT SAFETY NOTICE
- 3 - SAFETY PRECAUTIONS Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in theSchematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as ...
Page 4 - SERVICING PRECAUTIONS
- 4 - CAUTION: Before servicing receivers covered by this servicemanual 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 precautio...
Page 6 - Requirement for Test; SPECIFICATION
- 6 - 1. Application range This specification is applied to LP78A chassis. 2. Requirement for Test Testing for standard of each part must be followed in belowcondition. (1) Temperature : 25 ± 5°C(77 ± 9°F), CST : 40 ± 5°C(2) Humidity : 65% ± 10%(3) Power : Standard input voltage (100-240V~, 50/60Hz)...
Page 9 - ADJUSTMENT INSTRUCTION; PCB assembly adjustment method
- 9 - ADJUSTMENT INSTRUCTION 1. Application Range T h i s s p e c s h e e t i s a p p l i e d a l l o f t h e 2 6 / 3 2 / 3 7 / 4 2 ” L C DTV(LP78A) by manufacturing LG TV Plant all over the world. 2. Specification 1) Because this is not a hot chassis, it is not necessary to use an isolation transfo...
Page 14 - download
- 14 - (5) Push the Update NVM from File 4.4. Tool Option Area Option Change Before PCB check, have to change the Tool option and AreaoptionOption values are below(If on changed the option, the input menu can differ the modelspec.)The input methods are same as other chassises(Use adj Keyon the Adjus...
Page 15 - Adjustment of White Balance; measuring
=> Detail EDID Options are below(a, b, c, d, e) a. Product ID b. Serial No : Controlled on production linec. Month, Year : Controlled on production line ex) Monthly: '03' => '03' Year: '2005' => '0F' d. Model Name(Hex): e. Checksum (7EH) : Changeable by total EDID data 5.1. Sequence of Adju...
Page 16 - Default Value in Adjustment mode; Internal press test
- 16 - (3) DDC adjustment support command set 6.3. Adjustment of White Balance (For Manual adjustment) - Operate the zero-calibration of the CA-110 or CA-210, then stick sensor to LCD module when you adjust. - For manual adjustment, it is also possible by the following sequence 1) Select RF no signa...
Page 17 - TROUBLESHOOTING
- 17 - TROUBLESHOOTING 1. No power (1) Symptom 1) Minute discharge does not occur at module.2) Front LED does not activate. (2) Press check Plug in the power cord Start Check No Yes Is the power cordplugged in? Connect the cable.Plasma(CN1) No Yes Are the line filter andPSU connected? Replace the fu...
Page 19 - In the case an unusual display in RF mode.
- 19 - 3. No Raster (1) Symptom 1) No OSD or image are displayed on the screen. 2) The front LED remains green. (2) Follow check 4. In the case an unusual display in RF mode. Check the PDP Module Replace thePower board. Does minute discharge at Module? Is the inverter /VaVs on? Is output the normalL...
Page 25 - BLOCK DIAGRAM
- 25 - HDMI BLOCK DIAGRAM Downloaded From TV-Manual.com Manuals
Page 26 - EXPLODED VIEW
- 26 - 530 531 532 590 591 120 120 300 200 600 210 220 202 580 520 250 240 230 401 430 403 400 402 EXPLODED VIEW Downloaded From TV-Manual.com Manuals
Page 30 - Printed in Korea
Mar., 2007 Printed in Korea P/NO : MFL36696905 Downloaded From TV-Manual.com Manuals