LG Electronics 37LC2R, 42LC2R service manual No Raster LCD, Check follow

Page 18

2-2. No Raster - LCD

(1) Symptom

1)Does’t minute discharge at module.

2)It maintains the condition where the front LED is normal.

(2) Check follow

- 18 -

Is the Inverter

On or Off

On

Is the link cable

normal?

Yes

 

Is the

 

 

inverter 24V on power

 

Off

No

board normal

Yes

1.Check the Inverter connector

2.Check the LCD Module

1. Reconnect the link cable in P804 No

'Inverter_On'

 

 

 

Signal is High of 5th pin in

 

 

Check the Power board.

P1000 on

Yes

 

Main board

 

 

 

 

No

 

 

 

 

 

 

 

 

 

 

 

 

1. Check the Main board

Is the Power Board

normal?

Yes

Is the VSC Board

normal?

 

Is output

 

 

 

 

the normality Low/High

 

 

1. Change the Power Board

No

voltage except

No

 

stand-by 5V?

 

 

 

 

 

Yes

1. Check the Main Board.

 

Is the P804's output

 

 

1. Change the Main Board

No

normal?

No

 

Image 18
Contents LCD TV Contents RAY Radiation Safety PrecautionsGeneral Guidance Do not use a line Isolation Transformer during this checkServicing Precautions Electrostatically Sensitive ES DevicesPower Output, Transistor Device Removal/Replacement IC Remove/ReplacementSmall-Signal Discrete Transistor Removal/Replacement Diode Removal/ReplacementApplication range SpecificationGeneral TV Specification Test method Requirement for TestGeneral Specification Set Optical FeatureModel Specification Component Video Input Y, PB, PR RGB Input PCRGB input DTV Mechanical Specification Hdmi Input PCHdmi input DTV SET assembly adjustment items Adjustment InstructionPCB assembly adjustment items LP62xAdjustment of RGB Adjustment of RF/AV/S-VIDEOAdjustment of Component C-G-M-R-BLUE-BLACKMHVIDEO1 Manual white Balance AVAuto white Balance AV MSPG925FACSM ARCPSM SSMSVC Remocon KEY FuntionTroubleshooting No powerNo Power SymptomCheck follow No Raster LCD Check followCase of occur strange screen into specific mode Case of doesn’t display the OSD Symptom 1 LED is WhiteLCD TV Case of doesnt work normally at specific input mode Symptom Case of unusual situation from RF modeWhen set doesn’t display normally at RF , AV mode When set doesnt display nromally at Component, RGB modeCase of becomes unusual display from Hdmi mode Case of no sound VSC B/DBlock Diagram Exploded View 37LC2R Exploded View Parts LIST37LC2R DescriptionExploded VIEW42LC2R Exploded View Parts LIST42LC2R Replacement Parts List Main Board Capacitor0CE476WK6DC Description / Specification Description / Specification Coil & Core & Inductor Description / Specification FET & Transistor Description / Specification Description / Specification Description / Specification Control Board PREAMP&LED Board Page Page Page Page Mar
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37LC2R, 42LC2R specifications

LG Electronics has long been a notable player in the consumer electronics market, particularly in the television segment. Among its standout models are the 42LC2R, 50PC1R, 37LC2R, and 42PC3R, each designed to provide excellent viewing experiences with various features and technologies.

Starting with the 42LC2R, this model is known for its impressive 42-inch screen size, offering Full HD 1080p resolution that ensures sharp, vibrant images. The incorporation of LG's Adaptive Contrast technology enhances picture clarity by adjusting the contrast levels based on the content being displayed. Additionally, the 42LC2R features a slim design that makes it an elegant addition to any living space, combined with a reliable viewing angle, providing a great experience from different positions in the room.

Moving on to the 50PC1R, this Plasma TV boasts a larger 50-inch display, ideal for immersive movie-watching and gaming sessions. The 50PC1R supports a 720p resolution, which, while not Full HD, still delivers rich colors and great depth thanks to its plasma technology. One of the key highlights of this model is its 600Hz Real Motion Display, which significantly reduces motion blur, perfect for fast-paced sports and action films. Furthermore, the model's built-in surround sound technology creates an enriched audio ambiance, complementing the visual excellence.

The 37LC2R model, a slightly smaller option at 37 inches, still packs a punch with its high-quality display. It retains the hallmark of LG's LCD technology, boasting clear and consistent picture quality. With the integration of LG’s proprietary technologies, like XD Engine, the 37LC2R efficiently upscales lower-resolution content to provide enhanced detail and clarity. Its energy-efficient features are also commendable, making it a more sustainable choice without compromising performance.

Lastly, the 42PC3R incorporates advanced plasma technology, offering both a 42-inch screen and Full HD resolution. It stands out with LG’s Infinite Contrast feature, enabling deeper blacks and brighter whites. This model also embraces LG's stylish design philosophy, ensuring it looks modern and attractive in any home environment. Furthermore, it includes multiple connectivity options, such as HDMI ports and USB inputs, which enhance versatility and ease of use, allowing users to connect a variety of external devices.

Overall, each model—42LC2R, 50PC1R, 37LC2R, and 42PC3R—showcases LG Electronics' commitment to delivering high-quality displays, innovative technologies, and functional designs. Whether for enjoying high-definition movies or gaming, these televisions promise to enhance the viewing experience while adapting to various consumer needs.