Hi everyone, I am trying to rescue a Sony Bravia LCD mod: KDL-40V2500 Turn on for 3 seconds (you can see channel) but then turn off and standby. Some clue? Upgrade: Disassemble the LCD, unfortunately I broke a tube, it no longer turns on the screen. Anyone know how to test each tube to know if it is defective? What voltage does each tube use? some look somewhat black at the ends, possibly bad, but the screen did turn on before opening the case.

hello my dear ambassador of the andes, that tv is protected by back ligth problem or lamps, my dear cantiflas, also fix the blinking of the front led how many times it blinks when it turns off, do not go to sleep my risueñor, greets you the Caribbean Marshmallow

[quote="melcochita"] hello my dear ambassador of the andes, that tv is protected by back ligth problem or lamps, my dear cantiflas, also fix the blinking of the front led how many times it blinks when it goes off, do not go to fall asleep my risueñor, the Caribbean Melcochita greets you [/quote] Haha .... hello how are you ... When the screen is turned off, the front red LED flashes 4 times. (and continues to flash permanently 4 times every 2 seconds approx) Eye that the screen turns on for 3 seconds but the backlight looks good, it looks very sharp.

[quote="luisrode"] hello is backlight failure as the partner says :) here the plan, analyze it https://elektrotanya.com/sony_kdl-40v2500_kdl-46v2500_kdl-46v25l1_chassis_wax2f.pdf/download.html you expect it to load and down when "get manual" appears you click good luck 8) [/quote] OK thanks. One detail, the screen turns on for 3 seconds and turns off. When turning on it looks perfectly lit. I will open it to check.

In my wake with a similar one, I was only a false in the welding of the backlight lamps. I hope you serve greetings.

Hello my dear companion I hope you have ended your headache, good luck my dear Papa of the Smurfs, I hope I have supported with a grain of sand, do not read iteaeannnn the Caribbean Marshmallow greets you

[quote="josemilk"] In my path with a similar one, I was only a fake in the welding of the backlight lamps. I hope you serve greetings. [/Quote] Thank you! I'll keep it in mind .

It was not possible to repair it, thank you all for your advice.