This part is a kind of semiconductor called 42LF550A.

Function of this product has LG LED TV applies LCD screen Manual.

Manufacturers : LG

Image and pinout :

Some of the text within the PDF file :

LED TV LF55** www.lg.com AAA a X4 (M4 X L14) 42LF55** AAA b X4 (M4 X L20) 32LF55** X2 42LF55** : Depending on model / Selon le modèle / Dependendo do modelo / P/No: MFL68744802 (1504-REV02) Printed in Korea i 1 12 34 a/ b 1 2 USB IN SERVICE 2B A B A IN AUDIO OUT 2 1 AV IN 2 ANTENNA / CABLE IN AUDIO OUT AV IN 2 AUDIO OUT AV IN 2 USB IN VIDEO LR AUDIO LR AUDIO VIDEO L (MONO) AUDIO R SERVICE ONLY 3 41 2 34 12 34 : Depending on model / Selon le modèle / Dependendo do modelo / 5 E G1 AF B G2 DC A x B x C (mm) A x E x F (mm) D (kg) D - ( G1 + G2 ) (kg) 32LF551A-TA 32LF552A-TA 32LF553A-TA 32LF550A-TE 32LF554A-TE 731 x 480 x 208 731 x 442 x 56.5 5.9 5.7 42LF551A-TA 42LF552A-TA 42LF553A-TA 42LF550A-TE 42LF554A-TE 959 x 611 x 218 959 x 570 x 56.2 9.5 9.2 *MFL [ ... ]

42LF550A PDF Datasheet Download