Hitachi 43UWX10B - LED Light on constantly on will not go off

POSSIBLE POWER BOARD MALFUNCTIONING. LOCATE A HONEST TV REPAIR SHOP. I OWN THE SAME TV. IT IS A QUALITY TV.

hmmm...well...you have diagnostic tools

Replace the STK ICs,they are big black IC they will have PN# on them Replace Both ICs STK392-110s use 120s
Mats Electronics 1-800-628-1118

Yes,the LED power lite on the front panel stable?Yes,mean the DM power supply board is good.LED power like blinking,mean the DM power supply board is dead.DM power supply is good,still making that clicking sound,when turn on.Mean ur Blast board is dead,that the board that help to light up the projection lamp.

You need a professional.
Stop using the TV until it is repaired.
Continue to use it and your problems will multiply and grow more expensive.
Call the manufacturer to find you nearest authorized service center.

MR. TV Sales & Service Inc
Milwaukee Wisconsin 53405
(414) 762-8600
Established 1974

Replace Convergence ICs STKs will have Part # on them big black ics For parts 1-800-223-3205 www.electronix.com you have 2 of them replace Both!

Needs Convergence IC
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220

Research at www.HitachiServiceUSA.com....................T.

Research at www.HitachiServiceUSA.com....................T.

Check the stand-by circuit to the main pcb for the keyboard control. If no voltage present, check the 5v regulator in the main supply. If you are not seeing the LED on your supply up, it's likely you do not have the 5v stand-by.