Look thru the set up menu and see if there is an ambient light setting that adjusts the brightness of the TV based on the light level in the room. If there is then turn it off.
SOURCE: tv still dim after adjusting
sounds like you may have gotten a pwer surge and blew out the regulator in the set. If you know how to trouble shoot regulator curcuitds then it could be as simple as the str type regulator. If you dont then open the set and see what module the set has it would start with a 9-something as it should be inside the back cover and then contact http://www.tristatemodule.com and see what they charge to repair the entire pcb or the exchange of the module. As Zenith sets are made to be repaired in house by quilifyed repair stations IN hOUSE. Good luck to ya.
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SOURCE: Hitachi 62VS69 LCD Rear projection TV
It sound to me like a defective light engine. If so this is a very expensive repair if you set not under warranty or a service contract. This could have been damaged by a power surge.
I’m happy to help further over the phone at https://www.6ya.com/expert/dewayne_4a10eab6caecdb92
SOURCE: Sanyo DS24425 24" TV has great sound and no picture(black screen)
if TV have black screen,increase screen control to see vert amp IC is defective if you see one horizontal line in picture tube screen,and if screen is white with lots of line acrose ,you can find open resister,on picture tube board,or in main board near HV transformer.
SOURCE: Hitachi Ultravision Digital TV dark picture
Looks like
1. A Cold solder in the Video Output stage power supply.
2. A bad Electrolytic Capacitor in the above Video Output stage.
I generally do not waste time in attempting to locate faulty capacitors. There will be only 6-8 pf them in the above stage / section,m and the klot of them would collectivelyt not cost more than 3-4 $ equivalent, in india. Just blindly replace the lot, and the set is ready in 30 mins.
Dunno how much they will cost in your country. Try to look for a 100mfd, 160V Capacitor. Close your eyes and replace. generally does the trick.
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